Fire-fighting ventilation and smoke exhaust device

Abstract

The utility model relates to a fire-fighting ventilation and smoke exhaust device, and belongs to the technical field of fire-fighting ventilation. Comprising a ventilation pipe, a fan, filter screens and a water storage tank, the fan is arranged at one end in the ventilation pipe, the two filter screens are inserted in the ventilation pipe, the ventilation pipe is located above the filter screens and is rotationally connected with a sealing mechanism, the water storage tank is arranged above the other end of the ventilation pipe, and a spraying head communicated with the water storage tank is arranged in the ventilation pipe. And the ventilation pipe is slidably connected with the waste water tank at the corresponding position below the spraying head. The water storage tank is arranged to be matched with the spraying head to cool flue gas entering the ventilation pipe, the high-temperature flue gas is prevented from influencing normal operation of the fan, and cooled water can be recycled into the waste water tank to facilitate subsequent treatment; and the sealing mechanism is arranged to seal the filter screen in the ventilation pipe, the filter screen can be taken out to be cleaned by rotating the sealing mechanism after long-time use, and disassembly and replacement are convenient.

Description

Technical Field

[0001] This utility model relates to a fire ventilation and smoke exhaust device, belonging to the field of fire ventilation technology. Background Technology

[0002] Firefighting refers to the prevention and suppression of fires. It is an important public safety task that concerns people's lives and property safety and social stability. Fire ventilation and smoke extraction are important components of building fire safety. Their main purpose is to reduce the harm of smoke to people during a fire by using effective ventilation and smoke extraction measures, thereby creating favorable conditions for evacuation and fire rescue.

[0003] A search revealed that Chinese patent CN202020880182.7 discloses a fire ventilation and smoke exhaust device, which not only simplifies the smoke exhaust and ventilation devices of fire protection equipment and reduces material costs, but also achieves the function of filtering inhaled air, avoiding the damage to the human body caused by inhaling harmful gases.

[0004] However, in actual use, the high temperature of the flue gas will keep the exhaust motor at a high temperature, which can easily cause the motor to be damaged due to high temperature, affecting the normal operation of the exhaust system. At the same time, the air filter of this patent is fixedly installed inside the device, making it inconvenient to disassemble and replace. Utility Model Content

[0005] The technical problem this utility model aims to solve is that the motor of the existing fire ventilation and smoke exhaust device is always in a high-temperature state during use, which is very easy to cause the motor to be damaged due to high temperature, affecting the normal operation of the smoke exhaust. At the same time, the air filter element of this patent is fixedly installed inside the device, which is inconvenient to disassemble and replace.

[0006] To solve the above problems, this utility model provides a fire ventilation and smoke exhaust device, including a ventilation pipe, a fan, a filter screen, and a water storage tank. The fan is located at one end of the ventilation pipe, and two filter screens are inserted into the ventilation pipe. The ventilation pipe is rotatably connected to a sealing mechanism above the filter screens. The water storage tank is located above the other end of the ventilation pipe. A spray head connected to the water storage tank is provided inside the ventilation pipe, and a wastewater tank is slidably connected to the ventilation pipe at a corresponding position below the spray head.

[0007] Furthermore: the tube is provided with a slot adapted to the filter screen, and the filter screen is inserted into the slot.

[0008] Furthermore: the sealing mechanism includes a sealing plate and a rotating shaft. One end of the sealing plate is rotatably connected to the top of the ventilation pipe via the rotating shaft, and a sealing groove adapted to the filter screen is provided below the sealing plate.

[0009] Furthermore, a handle is provided above the sealing plate.

[0010] Furthermore: the ventilation pipe is provided with a connector below the spray head, and the wastewater tank is slidably connected to the connector through grooves on both sides of the upper end.

[0011] Furthermore: a connecting rod is provided at one end of the ventilation duct, and the lower end of the connecting rod is fixedly connected to the fan through a connecting ring.

[0012] The advantages of this utility model compared with the prior art are as follows:

[0013] This patent uses a water storage tank in conjunction with a spray head to cool the flue gas entering the ventilation duct, preventing the high-temperature flue gas from affecting the normal operation of the fan. The cooled water can be recycled into the wastewater tank for easy subsequent treatment.

[0014] The filter screen inside the ventilation duct is sealed by a sealing mechanism. After a long period of use, the filter screen can be removed for cleaning by rotating the sealing mechanism, making it easy to disassemble and replace. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a cross-sectional view of a fire ventilation and smoke exhaust device according to the present invention.

[0017] Figure 2 The present invention relates to a fire-fighting ventilation and smoke exhaust device. Figure 1 .

[0018] Figure 3 The present invention relates to a fire-fighting ventilation and smoke exhaust device. Figure 2 .

[0019] Figure 4 This is a structural diagram of the sealing plate of a fire ventilation and smoke exhaust device according to this utility model after it is opened.

[0020] In the attached image:

[0021] 1. Ventilation duct; 11. Spray head; 12. Slot; 13. Connector; 14. Connecting rod; 2. Fan; 3. Filter screen; 4. Water tank; 5. Sealing mechanism; 51. Sealing plate; 52. Rotating shaft; 53. Handle; 6. Wastewater tank. 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 protection scope of the present utility model.

[0023] Combined with appendix Figure 1-4 This utility model provides a fire ventilation and smoke exhaust device, including a ventilation pipe 1, a fan 2, a filter screen 3, and a water tank 4. One end of the ventilation pipe 1 is equipped with a connecting rod 14, the lower end of which is fixedly connected to the fan 2 via a connecting ring. The ventilation pipe 1 has slots 12 adapted to the filter screens 3, with two filter screens 3 inserted into the slots 12 for better filtration. The water tank 4 is located above the other end of the ventilation pipe 1. A spray head 11 connected to the water tank 4 is located inside the ventilation pipe 1. Below the spray head 11, the ventilation pipe 1 is equipped with... The wastewater tank 6 is slidably connected to the connector 13 via grooves on both sides of the upper end. During ventilation and smoke exhaust, the fan 2 draws the flue gas into the ventilation pipe 1. At this time, the spray head 11 sprays cold water from the water storage tank 4 to cool the flue gas. After the cold water is sprayed out, it falls into the wastewater tank 6 below. The cooled flue gas is filtered by the filter screen 3. The gas is then discharged from the other end of the ventilation pipe 1. After the ventilation and smoke exhaust is completed, the wastewater tank 6 is slid out from under the ventilation pipe 1 to treat the wastewater in the wastewater tank 6.

[0024] Combined with appendix Figure 1-4 The ventilation duct 1 is rotatably connected to the filter screen 3 above the ventilator 1. The sealing mechanism 5 includes a sealing plate 51 and a rotating shaft 52. One end of the sealing plate 51 is rotatably connected to the top of the ventilation duct 1 through the rotating shaft 52. The bottom of the sealing plate 51 is provided with a sealing groove of silicone material that is compatible with the filter screen 3 to prevent gas from flowing out of the ventilation duct 1. The top of the sealing plate 51 is provided with a handle 53. After a period of use, the sealing plate 51 can be rotated off the ventilation duct 1 by using the handle 53 to remove the filter screen 3 inside the ventilation duct 1 for disassembly and replacement, which is convenient for cleaning.

[0025] The working principle of this application is as follows:

[0026] During ventilation and smoke extraction, the fan 2 draws the flue gas into the ventilation duct 1. At this time, the spray head 11 sprays cold water from the water tank 4 to cool the flue gas. The cold water falls into the wastewater tank 6 below. The cooled flue gas is filtered by the filter screen 3, and the filtered gas is discharged from the other end of the ventilation duct 1. After the ventilation and smoke extraction is completed, the wastewater tank 6 can be slid out from under the ventilation duct 1 to treat the wastewater in the wastewater tank 6. After a period of use, the sealing plate 51 can be turned off the ventilation duct 1 by the handle 53 to remove the filter screen 3 inside the ventilation duct 1 for disassembly and replacement, which is convenient for cleaning.

[0027] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A fire-fighting ventilation and smoke exhaust device, characterized in that: The system includes a ventilation pipe (1), a fan (2), a filter screen (3), and a water storage tank (4). The fan (2) is located at one end of the ventilation pipe (1), and two filters (3) are inserted into the ventilation pipe (1). The ventilation pipe (1) is rotatably connected to the filter screen (3) and a sealing mechanism (5). The water storage tank (4) is located above the other end of the ventilation pipe (1). The ventilation pipe (1) is equipped with a spray head (11) that communicates with the water storage tank (4). The ventilation pipe (1) is slidably connected to a wastewater tank (6) at a corresponding position below the spray head (11).

2. The fire ventilation and smoke exhaust device according to claim 1, characterized in that: The ventilation pipe (1) is provided with a slot (12) adapted to the filter screen (3), and the filter screen (3) is inserted into the slot (12).

3. A fire-fighting ventilation and smoke exhaust device according to claim 2, characterized in that: The sealing mechanism (5) includes a sealing plate (51) and a rotating shaft (52). One end of the sealing plate (51) is rotatably connected to the top of the ventilation pipe (1) via the rotating shaft (52). A sealing groove adapted to the filter screen (3) is provided below the sealing plate (51).

4. A fire-fighting ventilation and smoke exhaust device according to claim 3, characterized in that: A handle (53) is provided above the sealing plate (51).

5. A fire ventilation and smoke exhaust device according to claim 3, characterized in that: The ventilation pipe (1) is provided with a connector (13) below the spray head (11), and the wastewater tank (6) is slidably connected to the connector (13) through the grooves on both sides of the upper end.

6. A fire-fighting ventilation and smoke exhaust device according to claim 5, characterized in that: One end of the ventilation pipe (1) is provided with a connecting rod (14), and the lower end of the connecting rod (14) is fixedly connected to the fan (2) through a connecting ring.

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