A smoke exhaust duct structure

Abstract

This utility model discloses a smoke exhaust duct structure, belonging to the field of duct technology. The smoke exhaust duct structure includes an inlet duct and an outlet duct. A purification box is fixedly installed between the inlet and outlet ducts. A water collection pipe is fixedly installed on the inner top wall of the purification box. The top of the water collection pipe extends to the top of the purification box and is fixedly installed with an inlet pipe. Several nozzles are installed at the bottom of the water collection pipe. These nozzles spray water to reduce dust in the smoke as it passes through the purification box, effectively solving the problems of traditional smoke exhaust ducts having limited functionality, direct emission of pollutants during smoke exhaust, and deformation and damage caused by high-temperature smoke. Furthermore, the addition of a spiral guide plate solves the problems of turbulent smoke flow and insufficient smoke exhaust efficiency and timeliness within traditional smoke exhaust ducts, thus meeting the high fire safety requirements of modern buildings.

Description

Technical Field

[0001] This utility model relates to the field of duct technology, and more specifically, to a smoke exhaust duct structure. Background Technology

[0002] In building fire protection systems, smoke exhaust ducts are key components for guiding the flow of smoke and ensuring the safety of personnel evacuation.

[0003] Based on the above, the inventors have discovered that traditional smoke exhaust ducts typically only have a single smoke exhaust function. When a fire occurs, a large amount of smoke dust, toxic gases, and unburned particles mixed in with the high-temperature smoke are directly discharged through the duct, not only polluting the external environment but also potentially causing duct deformation and damage due to excessively high smoke temperatures, thus affecting smoke exhaust efficiency. Furthermore, some ducts lack effective flow guiding structures, easily leading to problems such as turbulent smoke flow and localized eddies, reducing the smoothness and timeliness of smoke exhaust and failing to meet the high fire safety requirements of modern buildings. Therefore, in view of this, the inventors have researched and improved existing structures to provide a smoke exhaust duct structure with greater practical value. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a smoke exhaust duct structure that can use nozzles to spray water to reduce dust in the smoke as it passes through the purification box. This effectively solves the problems of traditional smoke exhaust ducts having a single function, direct emission of pollutants during smoke exhaust that pollutes the environment, and high-temperature smoke that easily causes duct deformation and damage. At the same time, the addition of a spiral guide plate can solve the problems of disordered smoke flow inside traditional smoke exhaust ducts and insufficient smoke exhaust efficiency and timeliness, so as to meet the high requirements of modern buildings for fire safety.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A smoke exhaust duct structure includes an air inlet duct and an air outlet duct. A purification box is fixedly installed between the air inlet duct and the air outlet duct. A water collection pipe is fixedly installed on the inner top wall of the purification box. The top end of the water collection pipe extends to the top of the purification box and is fixedly installed with a water inlet pipe. Several nozzles are installed at the bottom of the water collection pipe. A water collection hopper is fixedly installed at the bottom of the purification box. Guide plates are fixedly installed inside both the air inlet duct and the air outlet duct. A smoke exhaust fan is fixedly installed at the end of the air outlet duct away from the purification box.

[0009] Furthermore, both the air inlet pipe and the air outlet pipe are connected to the interior of the purification box.

[0010] Furthermore, a filter plate is fixedly installed on the inner wall of the water collection hopper, and the nozzle is located above the filter plate.

[0011] Furthermore, a solenoid valve is fixedly installed on the outer periphery of the water inlet pipe.

[0012] Furthermore, the bottom of the water collection hopper is fixed and connected to a drain port.

[0013] Furthermore, a slot is provided at the bottom of the air outlet duct near the purification box, and a filter plate is inserted into the slot.

[0014] Furthermore, the guide plate has a spiral plate structure.

[0015] 3. Beneficial effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] (1) This plan is approved.

[0018] A water collection pipe and nozzles are installed inside the purification chamber. When high-temperature flue gas enters the purification chamber, the nozzles can spray water to spray the flue gas to reduce dust, effectively adsorbing dust particles and some toxic gases in the flue gas, reducing the impact of direct emissions of pollutants on the environment; at the same time, the water flow can absorb a large amount of heat when it comes into contact with the high-temperature flue gas, reducing the flue gas temperature and preventing the duct from deforming and being damaged due to excessive temperature.

[0019] (2) This solution, through the setting of spiral guide plates inside the air inlet and outlet pipes, can guide the flue gas to form an orderly spiral flow, reduce local eddy phenomena, improve the smoothness of flue gas flow, and, in conjunction with the function of the exhaust fan, can significantly improve the efficiency and timeliness of exhaust. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a bottom view of the structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. Air inlet duct;

[0025] 2. Air outlet duct;

[0026] 3. Purification box;

[0027] 4. Water collection pipe;

[0028] 5. Water inlet pipe;

[0029] 6. Nozzle;

[0030] 7. Water collection bucket;

[0031] 8. Deflector plate;

[0032] 9. Smoke exhaust fan;

[0033] 10. Filter plate;

[0034] 11. Solenoid valve;

[0035] 12. Drainage port;

[0036] 13. Filter plate. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0038] Example:

[0039] Please see Figures 1-3 A smoke exhaust duct structure includes an air inlet duct 1 and an air outlet duct 2. A purification box 3 is fixedly installed between the air inlet duct 1 and the air outlet duct 2. A water collection pipe 4 is fixedly installed on the inner top wall of the purification box 3. The top end of the water collection pipe 4 extends to the top of the purification box 3 and is fixedly installed with a water inlet pipe 5. Several nozzles 6 are installed at the bottom of the water collection pipe 4. A water collection hopper 7 is fixedly installed at the bottom of the purification box 3. A guide plate 8 is fixedly installed inside both the air inlet duct 1 and the air outlet duct 2. A smoke exhaust fan 9 is fixedly installed at the end of the air outlet duct 2 away from the purification box 3.

[0040] See Figure 3 Both the air inlet pipe 1 and the air outlet pipe 2 are connected to the interior of the purification box 3.

[0041] See Figure 3 A filter plate 10 is fixedly installed on the inner wall of the water collection hopper 7, and the nozzle 6 is located above the filter plate 10. The bottom of the water collection hopper 7 is fixed and connected to a drain port 12. When in use, the filter plate 10 at the bottom of the water collection hopper 7 can perform preliminary filtration on the water after spraying, which is convenient for subsequent water resource recycling. The drain port 12 is convenient for discharging the filtered water for treatment.

[0042] See Figure 2 A solenoid valve 11 is fixedly installed on the outer periphery of the water inlet pipe 5.

[0043] See Figure 3 The bottom of the air outlet duct 2 near the purification box 3 has a slot, and a filter plate 13 is inserted into the slot. When in use, the plug-in filter plate 13 in the air outlet duct 2 can further filter the flue gas after spray treatment, improve the quality of smoke exhaust, and the filter plate 13 is easy to disassemble, making it convenient to clean or replace regularly and ensure long-term use effect.

[0044] See Figure 3 The guide plate 8 has a spiral plate structure. When in use, the spiral structure of the guide plate 8 can guide the flue gas to form an orderly spiral flow, reduce local eddy phenomena, and improve the smoothness of flue gas flow. In conjunction with the function of the exhaust fan 9, it can significantly improve the efficiency and timeliness of exhaust, while also reducing the noise inside the duct.

[0045] Working Principle: During operation, after the exhaust fan 9 starts, the flue gas to be treated is introduced into the purification chamber 3 through the inlet pipe 1. At this time, the solenoid valve 11 controls the opening and closing of the water inlet pipe 5 according to the preset program or sensor feedback signal, so that the spraying mechanism sprays water evenly into the purification chamber 3 through the nozzles 6. The spiral-shaped guide plate 8 guides the flue gas to form a spiral flow in the purification chamber 3, prolonging the contact time between the flue gas and the sprayed water, so that the particulate matter in the flue gas is fully mixed with the water and adsorbed. Then, the preliminarily purified flue gas flows into the outlet pipe 2, where the filter plate 13 performs secondary filtration on the flue gas to further remove residual impurities. Finally, the clean flue gas is discharged through the outlet pipe 2. The sprayed water falls into the water collection hopper 7, is filtered by the water filter plate 10, and is discharged through the drain port 12, realizing the initial recovery of water resources. The synergistic effect of this series of structures not only effectively improves the flue gas purification efficiency, but also ensures long-term stable operation through the design of the detachable filter plate 13. At the same time, the spiral flow guiding structure optimizes the flue gas flow state, reduces energy consumption and noise, and comprehensively improves the practicality and reliability of the smoke control system.

[0046] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0047] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0048] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A smoke exhaust duct structure, comprising an inlet duct (1) and an outlet duct (2), characterized in that: A purification box (3) is fixedly installed between the air inlet pipe (1) and the air outlet pipe (2). A water collection pipe (4) is fixedly installed on the inner top wall of the purification box (3). The top end of the water collection pipe (4) extends to the top of the purification box (3) and is fixedly installed with a water inlet pipe (5). Several nozzles (6) are installed at the bottom of the water collection pipe (4). A water collection hopper (7) is fixedly installed at the bottom of the purification box (3). A guide plate (8) is fixedly installed inside both the air inlet pipe (1) and the air outlet pipe (2). A smoke exhaust fan (9) is fixedly installed at the end of the air outlet pipe (2) away from the purification box (3).

2. The smoke exhaust duct structure according to claim 1, characterized in that: Both the air inlet pipe (1) and the air outlet pipe (2) are connected to the interior of the purification box (3).

3. The smoke exhaust duct structure according to claim 1, characterized in that: A filter plate (10) is fixedly installed on the inner wall of the water collection hopper (7), and the nozzle (6) is located above the filter plate (10).

4. The smoke exhaust duct structure according to claim 1, characterized in that: A solenoid valve (11) is fixedly installed on the outer periphery of the water inlet pipe (5).

5. The smoke exhaust duct structure according to claim 1, characterized in that: The bottom of the water collection hopper (7) is fixed and connected to a drain port (12).

6. The smoke exhaust duct structure according to claim 1, characterized in that: The air outlet pipe (2) has a slot at the bottom of one end near the purification box (3), and a filter plate (13) is inserted into the slot.

7. The smoke exhaust duct structure according to claim 1, characterized in that: The guide plate (8) has a spiral plate structure.

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