Emergency smoke exhaust device
The emergency smoke exhaust device, with its multi-layered filtration system and bypass design, solves the problem that existing devices cannot effectively filter particulate matter, achieving both smoke purification and efficient emission.
Patent Information
- Application Number
- CN202520321165.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-02-26
AI Technical Summary
Existing smoke extraction devices cannot effectively filter particulate matter produced by combustion, and direct emissions affect air quality and health.
Design an emergency smoke exhaust device with a multi-layer filter structure. The filter layer near the air inlet has larger pores, and the pores of subsequent filter layers gradually decrease. A bypass port is provided. The filter layer is stabilized by grooves and reinforcing ribs on the inner wall of the housing. Filter materials include aluminum mesh, glass fiber filter mesh, and aramid composite material.
It achieves effective filtration of flue gas, reduces particulate matter emissions, maintains good smoke extraction efficiency, and reduces the impact on air quality and health.
Smart Images
Figure CN223901479U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of smoke exhaust, in particular to an emergency smoke exhaust device. BACKGROUND
[0002] With the large-scale construction of lithium battery storage spaces, the construction of fire-fighting, environmental protection and safety is particularly important. When a fire suddenly occurs in the lithium battery storage space during the battery replacement process, the main body and carrier of the burning object are moved to an emergency treatment closed warehouse, and fire extinguishing treatment is performed. A large amount of particulate smoke generated by burning in a closed environment needs to be discharged from the warehouse through an emergency smoke exhaust device.
[0003] Although the smoke exhaust device in the related art can effectively exhaust a large amount of smoke, the particulate matter generated by burning cannot be filtered, and direct exhaust can affect the surrounding air quality and harm the health of surrounding personnel. Therefore, how to enable the smoke exhaust device to filter smoke while maintaining good exhaust efficiency is a research focus in the field. CONTENT OF THE UTILITY MODEL
[0004] In order to effectively filter smoke and minimize the impact on wind speed, the application provides an emergency smoke exhaust device.
[0005] The application provides an emergency smoke exhaust device, which adopts the following technical scheme:
[0006] An emergency smoke exhaust device comprises a shell and an air extraction piece arranged on the side wall of the shell. One end of the shell is provided with an air inlet, and the other end of the shell is provided with an air outlet. The air extraction piece is installed at one end of the shell with the air outlet. A plurality of filter layers are arranged in the shell, and at least one of the filter layers is provided with a bypass opening.
[0007] Through the above technical scheme, under the action of the air extraction piece, smoke can enter the shell from one end of the air inlet and be discharged from the air outlet of the shell. A plurality of filter layers are arranged in the shell, and the filter layers filter the smoke to adsorb particulate matter in the smoke. Part of the filter layers are provided with bypass openings, so that the smoke can enter the next filter layer from the bypass openings during filtration, thereby maintaining a certain smoke exhaust efficiency.
[0008] Optionally, the porosity of the filter layer close to the air inlet is greater than that of the remaining filter layers.
[0009] Through the above technical scheme, the porosity of the filter layer close to the air inlet is larger, which can first filter large particles in the smoke, reducing the impact of these large particles on the subsequent structure. The porosity of this layer of filter layer is larger, and the passing rate of the smoke is higher, thereby being conducive to maintaining the exhaust efficiency of the smoke.
[0010] Optionally, from the direction of the air inlet to the air outlet, the second filter layer is provided with a bypass opening.
[0011] By adopting the above technical scheme, in the initial stage of smoke exhaust, due to the good adsorption and permeability of the filter layer, after the flue gas enters the shell from the air inlet, it can directly pass through the filter layer layer by layer and be discharged from the air outlet. Therefore, in the initial stage of smoke exhaust, the movement path of the flue gas in the shell mainly passes through the filter layer. In the process of flue gas passing through the filter layer, the filter layer synchronously adsorbs the pollutants in the flue gas, achieving the effect of purifying the flue gas. As the smoke exhaust proceeds, the adsorption capacity of the filter layer gradually increases, so that the permeability of the filter layer gradually decreases, and therefore part of the flue gas begins to enter the next space from the bypass opening, thereby maintaining the efficiency of smoke exhaust.
[0012] Optionally, from the direction of the air inlet to the direction close to the air outlet, the size of the bypass opening of each filter layer gradually decreases.
[0013] By adopting the above technical scheme, the bypass opening is gradually tapered in the direction close to the air outlet, thereby being more conducive to the discharge and filtration of flue gas.
[0014] Optionally, the bypass openings on the upper and lower adjacent filter layers are located at the ends of the filter layers away from each other.
[0015] By adopting the above technical scheme, the bypass openings are located at the ends of the filter layers away from each other, and the movement path of the flue gas therein is in an S-shaped structure, thereby improving the movement path of the flue gas and the adsorption effect of the flue gas.
[0016] Optionally, the inner wall of the shell is provided with a clamping groove, and the filter layer is connected in the clamping groove.
[0017] By adopting the above technical scheme, the filter layer is installed in the clamping groove, and the filter layer is not prone to deviation and shaking, and the connection is more stable.
[0018] Optionally, from the direction of the air inlet to the air outlet, the thickness of the filter layer gradually increases.
[0019] By adopting the above technical scheme, the filtration effect of the smoke exhaust device on flue gas is better.
[0020] Optionally, each filter layer is independently selected from one of an aluminum mesh, a glass fiber filter mesh, and a glass fiber and aramid composite material.
[0021] Optionally, the edge of the inner wall of the shell is provided with a reinforcing rib.
[0022] By adopting the above technical scheme, the stability of the overall shell is improved, and deformation is not prone to occur in use.
[0023] In summary, the present application includes at least one of the following benefits:
[0024] 1. By arranging multiple filter layers in the shell, and combining the design of the bypass port, the filtering effect on the flue gas can be improved, and the exhaust efficiency is maintained. BRIEF DESCRIPTION OF DRAWINGS
[0025] Figure 1 is a structural schematic diagram of an embodiment of the present application;
[0026] Figure 2 is a cross-sectional schematic diagram of an embodiment of the present application;
[0027] Figure 3 is a plan cross-sectional schematic diagram of an embodiment of the present application.
[0028] BRIEF DESCRIPTION OF DRAWINGS 1. Shell; 2. Air inlet; 3. Air outlet; 4. Exhaust component; 51. First filter layer; 52. Second filter layer; 53. Third filter layer; 54. Fourth filter layer; 6. Bypass port; 7. Clamping slot; 8. Reinforcing rib. DETAILED DESCRIPTION
[0029] The present application will be further described in detail below with reference to the accompanying drawings.
[0030] An emergency smoke exhaust device is disclosed in an embodiment of the present application. Referring to Figure 1 and Figure 2 , the emergency smoke exhaust device includes a shell 1, which is a hollow structure inside. One end of the shell 1 is provided with an air inlet 2, and the end of the shell 1 away from the air inlet 2 is provided with an air outlet 3. The outer wall of the shell 1 is further provided with an exhaust component 4, which is installed at the position of the air outlet 3. The exhaust component 4 is used to generate negative pressure in the shell 1, so that the heat generated by the burning matter can be sucked into the shell 1 from the air inlet 2 and then discharged from the air outlet 3.
[0031] A plurality of filter layers are installed in the inner wall of the shell 1, and the filter layers are arranged at intervals along the direction from the air inlet 2 to the air outlet 3. The filter layers can filter the flue gas. After the black smoke generated by burning is filtered by the filter layers, it can be converted into white smoke, reducing the impact on the air environment caused by direct discharge of flue gas, and also reducing the harm to the health of personnel.
[0032] Referring to Figure 1 and Figure 2In the embodiment, the filter layer is provided with four layers, and in other embodiments, the filter layer can also be provided with two layers, three layers, five layers, etc. In order to facilitate the description, the filter layer in the embodiment is sequentially named as a first filter layer 51, a second filter layer 52, a third filter layer 53, and a fourth filter layer 54. The first filter layer 51 is located at a position closest to the air inlet 2.
[0033] The first filter layer 51, the second filter layer 52, the third filter layer 53, and the fourth filter layer 54 are independently selected from one of an aluminum mesh, a glass fiber filter mesh, polyaryl sulfone, and a glass fiber and aramid composite material. In the embodiment, the first filter layer 51 is preferentially selected from an aluminum mesh, and the aperture of the aluminum mesh is larger than the apertures of the other filter layers, so that the first filter layer 51 can intercept particulate matter with a large volume generated by combustion, thereby avoiding the influence of the particulate matter on subsequent filtration and smoke exhaust. The aperture of the first filter layer 51 is larger than that of the remaining filter layers, which also helps the flue gas to enter the housing 1, thereby maintaining the smoke exhaust efficiency. The first filter layer 51 can also be selected from other materials described above, without special limitation.
[0034] The second filter layer 52 and the third filter layer 53 are selected from a glass fiber filter mesh, which can effectively adsorb particulate matter while allowing internal airflow to smoothly enter the next filter layer; the second filter layer 52 and the third filter layer 53 can also be selected from a polyaryl sulfone filter material. The above materials are only several commonly used filter materials listed in the application, and do not limit the protection scope of the application. The selection of the filter layer is not limited to the above listed several materials. The fourth filter layer 54 is selected from a glass fiber and aramid composite material, which uses a composite material of glass fiber and aramid for final filtration to strengthen the adsorption effect and allow the smoke to be effectively filtered and normally discharged. Of course, the composite material of glass fiber and aramid is not the only choice for the fourth filter layer 54, and other filter materials with good adsorption effect can also be selected.
[0035] Referring to Figure 2 and Figure 3 In further embodiments, at least one of the filter layers is provided with a bypass opening 6. In the embodiment, the second filter layer 52, the third filter layer 53, and the fourth filter layer 54 are each provided with a bypass opening 6. In each filter layer with a bypass opening 6, the bypass opening 6 is located at an end away from the other filter layer. That is, the bypass openings 6 of the third filter layer 53 and the second filter layer 52 are located at an end away from each other, and the bypass openings 6 of the third filter layer 53 and the fourth filter layer 54 are located at an end away from each other.
[0036] In the process of smoke exhaust, the suction force is generated by the air exhaust component, and the flue gas enters the shell from the air inlet under the action of the suction force and is discharged from the air outlet. In the initial stage of smoke exhaust, due to the good adsorption and permeability of the filter layer, after the flue gas enters the shell from the air inlet, it can directly pass through the filter layer layer by layer and be discharged from the air outlet. Therefore, in the initial stage of smoke exhaust, the movement path of the flue gas in the shell mainly passes through the filter layer. In the process of flue gas passing through the filter layer, the filter layer synchronously adsorbs the pollutants in the flue gas, achieving the effect of purifying the flue gas. As the smoke exhaust proceeds, the adsorption capacity of the filter layer gradually increases, causing the permeability of the filter layer to gradually decrease, so part of the flue gas begins to enter the next space from the bypass opening, thereby maintaining the efficiency of smoke exhaust.
[0037] The opening of the bypass opening 6 is not limited in the present application. For example, the cross-sectional size of the filter layer is smaller than the cross section of the shell 1, so that there is a gap between the filter layer and the inner wall of the shell 1, forming the bypass opening 6. In other embodiments, the bypass opening 6 can also be directly opened on the filter layer, thereby forming the bypass opening 6.
[0038] Further, the size of each layer of the bypass opening 6 gradually decreases in the direction close to the air outlet 3. By gradually reducing the size of the bypass opening 6, the flue gas can be better filtered and the efficiency of smoke exhaust can be balanced. In order to better adsorb and filter the flue gas, the thickness of the filter layer gradually increases in the direction close to the air outlet 3, that is, the thickness of the filter layer close to the air outlet 3 is the largest. In this embodiment, the thickness of the first filter layer 51, the second filter layer 52, the third filter layer 53 and the fourth filter layer 54 gradually increases.
[0039] In further embodiments, in order to facilitate the installation of the filter layer, the inner wall of the shell 1 is fixed with a clamping groove 7, and the filter layer is clamped in the clamping groove 7. In order to improve the stability of the filter layer, the filter layer can be further fixed by using bolts and the like. In order to improve the overall structural strength and stability of the box body, reinforcing ribs 8 are installed at the edges of the inner wall of the shell 1.
[0040] The implementation principle of the emergency smoke exhaust device according to an embodiment of the present application is that: by designing multiple layers of filter layers in the shell 1, the flue gas can be adsorbed and filtered multiple times, and combined with the design of the bypass opening 6, the flue gas exhaust efficiency can be maintained; after multiple tests and adjustments, the scheme of the present embodiment has obvious smoke exhaust effect and filtering effect, and can intercept foreign matter, effectively adsorb particulate matter and minimize the influence of wind speed.
[0041] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, therefore: any equivalent changes made on the basis of the structure, shape, principle of the present application shall be covered within the protection scope of the present application.
Claims
1. An emergency smoke extraction device, characterised in that: The utility model relates to a filter device, including shell (1) and set up in the shell (1) side wall exhaust (4), one end of shell (1) is provided with air inlet (2), the other end of shell (1) is provided with air outlet (3), exhaust (4) is installed in the shell (1) one end with air outlet (3), be provided with bypass (6) in at least one layer of filter layer of shell (1).
2. An emergency smoke extraction device according to claim 1, characterised in that: The porosity of the filter layer near the air inlet (2) is greater than the porosity of the remaining filter layers.
3. The emergency smoke extraction device of claim 1, wherein: From the direction of the air inlet (2) to the air outlet (3), the second filter layer is provided with a bypass (6).
4. An emergency smoke extraction apparatus according to claim 3, wherein: From the direction of the air inlet (2) to the direction close to the air outlet (3), the size of the bypass (6) of each filter layer gradually decreases.
5. An emergency smoke extraction device according to claim 3, characterised in that: The bypass (6) on the upper and lower adjacent filter layers is located at the opposite ends of the filter layers.
6. An emergency smoke extraction device according to claim 3, characterised in that: The inner wall of the shell (1) is provided with a clamping groove (7), and the filter layer is connected in the clamping groove (7).
7. An emergency smoke extraction device according to claim 3, characterised in that: From the direction of the air inlet (2) to the air outlet (3), the thickness of the filter layer gradually increases.
8. An emergency smoke extraction apparatus according to claim 3, wherein: Each filter layer is independently selected from one of an aluminum mesh, a glass fiber filter mesh, a polyaryl sulfone, and a glass fiber and aramid composite material.
9. An emergency smoke extraction apparatus according to claim 2, wherein: The edge of the inner wall of the shell (1) is provided with a reinforcing rib (8).