Air filtering device

Abstract

The utility model discloses an air filtering device, and belongs to the technical field of underground engineering construction operation air circulation. Comprising a fan, a ventilation pipe and an air filtering mechanism. The air filtering mechanism comprises a storage chamber and a filtering chamber; the storage chamber is connected with one end of the ventilation pipe; a filter screen is arranged on the cavity wall of the storage cavity; vent holes are formed in the cavity wall of the filtering cavity; one side, deviating from the inner wall of the storage cavity, of the filter screen is correspondingly connected with the vent holes; ventilation pipes corresponding to the ventilation holes are arranged on the inner wall of the filtering chamber; liquid is contained in the filtering chamber and is positioned on the lower side of the vent hole; the end, away from the ventilation pipe, of the ventilation pipe is immersed in liquid. One end of the ventilation pipe is connected with the fan; and the other end of the ventilation pipe is connected with the storage chamber. Therefore, particulate matters in the air can be intercepted into the storage chamber by the filter screen, and water-soluble chemical substances in the air can be absorbed by the liquid, so that the air discharged from the outside cannot pollute the air environment.

Description

Technical Field

[0001] This application relates to the technical field of air circulation in underground engineering operations, and particularly to an air filtration device. Background Art

[0002] The types of air filtration devices include primary filtration devices, intermediate filtration devices, high-efficiency filtration devices, and ultra-high-efficiency filtration devices. Each filtration device can remove different sizes and types of particulate matter according to its design and the materials used. For example, a high-efficiency particulate air (HEPA) filter can remove at least 99.97% of particulate matter with a size of 0.3 microns, while an ultra-high-efficiency particulate air (ULPA) filter can remove smaller particulate matter, such as particulate matter with a size of 0.1 microns.

[0003] In addition to filtering particulate matter, some air filtration devices also have the function of removing odors and harmful gases. These filtration devices are usually used in places with higher air quality requirements, such as biopharmaceuticals, hospitals, airport terminals, and human living environments. In addition, the selection and use of air filtration devices also need to consider energy conservation and environmental protection factors. For example, in commercial buildings, the energy consumption of HVAC air filtration devices accounts for a considerable proportion of the total electricity bill.

[0004] The selection of an air filtration device should be determined according to specific application scenarios and requirements, including factors such as the required purification standard, filtration efficiency, energy consumption, and maintenance cost. With the continuous progress of technology, the performance and efficiency of air filtration devices are also constantly improving, providing more effective air cleaning solutions for various occasions.

[0005] In underground engineering construction such as tunnels and mines, the air in the cave is often discharged through fans and pipelines. However, the air in a newly excavated tunnel or mine usually contains various chemically toxic gases. Therefore, directly discharging the air into the external environment will pollute the external air environment. There is no air filtration device on the market for underground engineering construction scenarios such as tunnels and mines. Utility Model Content

[0006] By providing an air filtration device in an embodiment of this application, the problem that discharging the air containing toxic gases in a tunnel or mine directly into the external environment will pollute the external air environment is solved.

[0007] An embodiment of the present application provides an air filtering device, which includes a fan, a ventilation pipe, and an air filtering mechanism; the air filtering mechanism includes a storage chamber and a filtering chamber; the storage chamber is connected to one end of the ventilation pipe; a filter screen is provided on the chamber wall of the storage chamber; ventilation holes are provided on the chamber wall of the filtering chamber; the side of the filter screen facing away from the inner wall of the storage chamber is correspondingly connected to the ventilation holes; a ventilation pipe corresponding to the ventilation holes is provided on the inner wall of the filtering chamber; the filtering chamber contains a liquid and the liquid is located below the ventilation holes; the end of the ventilation pipe facing away from the ventilation pipe is immersed in the liquid; one end of the ventilation pipe is connected to the fan; the other end of the ventilation pipe is connected to the storage chamber.

[0008] In a possible implementation manner, an activated carbon filtering layer is further included; the activated carbon filtering layer is provided in the filtering chamber; the activated carbon filtering layer is located on the side of the ventilation holes facing away from the liquid, and the activated carbon filtering layer covers the cross section of the filtering chamber.

[0009] In a possible implementation manner, a liquid inlet hole is provided on the chamber wall of the filtering chamber and the liquid inlet hole is closed by a first hole plug.

[0010] In a possible implementation manner, a liquid discharge hole is provided at the bottom of the filtering chamber and the liquid discharge hole is closed by a second hole plug.

[0011] In a possible implementation manner, an air inlet hole is provided on the chamber wall of the storage chamber; a connection end is provided at the air inlet hole on the outer wall of the storage chamber; the connection end is connected to the ventilation pipe.

[0012] In a possible implementation manner, the storage chamber and the filtering chamber are independent of each other.

[0013] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects:

[0014] In an embodiment of the present application, an air filtration device is adopted, which includes a fan, a ventilation pipe, and an air filtration mechanism; the air filtration mechanism includes a storage chamber and a filtration chamber; the storage chamber is connected to one end of the ventilation pipe; a filter screen is provided on the chamber wall of the storage chamber; ventilation holes are provided on the chamber wall of the filtration chamber; the side of the filter screen facing away from the inner wall of the storage chamber is correspondingly connected to the ventilation holes; a ventilation pipe corresponding to the ventilation holes is provided on the inner wall of the filtration chamber; the filtration chamber contains a liquid and the liquid is located below the ventilation holes; the end of the ventilation pipe facing away from the ventilation pipe is immersed in the liquid; one end of the ventilation pipe is connected to the fan; the other end of the ventilation pipe is connected to the storage chamber. The fan transports the air in the tunnel or mine into the storage chamber through the air duct; the particulate matter in the air will be intercepted by the filter screen into the storage chamber, and the air continues to enter the liquid in the filtration chamber through the ventilation pipe. The chemical substances dissolved in the air in the water will be absorbed by the liquid, and then discharged from the top of the filtration chamber to the outside air as purified air, so that the air discharged to the outside will not pollute the air environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments of the present application or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a schematic structural diagram of the air filtration device provided by the embodiment of the present application.

[0017] Figure 2 It is a schematic structural diagram of the storage chamber provided by the embodiment of the present application.

[0018] Figure 3 It is a schematic structural diagram of the filtration chamber provided by the embodiment of the present application.

[0019] Reference numerals: 1 - fan; 2 - ventilation pipe; 3 - air filtration mechanism; 31 - storage chamber; 311 - filter screen; 312 - air inlet hole; 32 - filtration chamber; 321 - ventilation hole; 322 - ventilation pipe; 323 - liquid; 324 - liquid inlet hole; 325 - liquid discharge hole; 4 - activated carbon filtration layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0021] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application. The terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In addition, the terms "mounted", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0022] As Figure 1 shown, an air filtering device provided by an embodiment of the present application includes a fan 1, a ventilation pipe 2, and an air filtering mechanism 3. The air filtering mechanism 3 includes a storage chamber 31 and a filtering chamber 32. The storage chamber 31 is connected to one end of the ventilation pipe 2. A filter screen 311 is provided on the chamber wall of the storage chamber 31. Ventilation holes 321 are provided on the chamber wall of the filtering chamber 32. One side of the filter screen 311 facing away from the inner wall of the storage chamber 31 is correspondingly connected to the ventilation holes 321. A ventilation pipe 322 corresponding to the ventilation holes 321 is provided on the inner wall of the filtering chamber 32. The filtering chamber 32 contains a liquid 323 and the liquid 323 is located below the ventilation holes 321. One end of the ventilation pipe 322 away from the ventilation pipe 322 is immersed in the liquid 323. One end of the ventilation pipe 2 is connected to the fan 1. The other end of the ventilation pipe 2 is connected to the storage chamber 31.

[0023] In the embodiment of the present application, the air blower 1 is used to transport the air in the tunnel or mine into the storage chamber 31 through the air duct. The particulate matter in the air will be intercepted by the filter screen 311 into the storage chamber 31, and the air will continue to enter the liquid 323 in the filter chamber 32 through the air pipe 322. The chemical substances dissolved in the water in the air will be absorbed by the liquid 323. Since there is no top cover provided at the top of the filter chamber 32, the air discharged from the top of the filter chamber 32 to the outside air belongs to the purified air, so that the air discharged to the outside will not pollute the air environment. For removing a certain specific chemical substance, a specific chemical solution can be added to the filter chamber 32.

[0024] As Figure 1 shown, an air filtering device provided by the embodiment of the present application further includes an activated carbon filtering layer 4. The activated carbon filtering layer 4 is arranged in the filter chamber 32. The activated carbon filtering layer 4 is located on the side of the air vent 321 away from the liquid 323, and the activated carbon filtering layer 4 covers the cross section of the filter chamber 32.

[0025] In the embodiment of the present application, in addition to setting the filter screen 311 and the liquid 323 in the air filtering device, the activated carbon filtering layer 4 is further set. Because of the physical adsorption principle of the activated carbon itself, the trace toxic gases, ammonia gas and benzene gas in the air can be absorbed by it, so that the air discharged to the outside is more pollution-free and non-toxic.

[0026] As Figure 1 and Figure 2 shown, in an air filtering device provided by the embodiment of the present application, a liquid inlet hole 324 is arranged on the chamber wall of the filter chamber 32 and the liquid inlet hole 324 is closed by a first plug.

[0027] In the embodiment of the present application, since the liquid inlet hole 324 is arranged on the chamber wall of the filter chamber 32 in the air filtering device and the liquid inlet hole 324 is closed by the first plug, due to long-term use, the liquid 323 in the filter chamber 32 is carried out to the outside by the flowing air. In order to maintain the amount of the liquid 323 in the filter chamber 32, when the liquid 323 in the filter chamber 32 is insufficient, the first plug can be opened and the liquid 323 can be injected into the filter chamber 32 through the liquid inlet hole 324.

[0028] As Figure 1 shown, in an air filtering device provided by the embodiment of the present application, a liquid discharge hole 325 is arranged at the bottom of the filter chamber 32 and the liquid discharge hole 325 is closed by a second plug.

[0029] In the embodiment of the present application, since a liquid discharge hole 325 is provided at the bottom of the filtration chamber 32 in the air filtration device and the liquid discharge hole 325 is closed by a second plug. Therefore, when it is necessary to replace the liquid 323 in the filtration chamber 32, the second plug can be opened to discharge the liquid 323 in the filtration chamber 32 through the liquid discharge hole 325, then the liquid discharge hole 325 is closed by the second plug, and the liquid 323 is newly injected into the filtration chamber 32 through the liquid inlet hole 324.

[0030] As Figure 1 and Figure 3 shown, an air filtration device provided by an embodiment of the present application has an air inlet hole 312 provided on the chamber wall of the storage chamber 31. A connection end is provided at the air inlet hole 312 on the outer wall of the storage chamber 31. The connection end is connected to the ventilation pipe 2.

[0031] In the embodiment of the present application, since an air inlet hole 312 is provided on the chamber wall of the storage chamber 31 in the air filtration device. A connection end is provided at the air inlet hole 312 on the outer wall of the storage chamber 31, which facilitates the connection between the connection end and the ventilation pipe 2.

[0032] As Figure 1 , Figure 2 and Figure 3 shown, an air filtration device provided by an embodiment of the present application has the storage chamber 31 and the filtration chamber 32 independent of each other.

[0033] In the embodiment of the present application, since the storage chamber 31 and the filtration chamber 32 in the air filtration device are independent of each other, the storage chamber 31 and the filtration chamber 32 can be used separately. The top of the storage chamber 31 is not provided with a top cover, so when the dust and air particles in the storage chamber 31 reach a certain amount, they can be processed regularly and centrally.

[0034] The various embodiments in this specification are described in a progressive manner. For the same or similar parts between the various embodiments, reference can be made to each other. The key points of each embodiment are the differences from other embodiments.

[0035] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the present application.

Claims

1. An air filter device, characterized in that: It comprises a fan (1), a ventilation pipe (2) and an air filtering mechanism (3); The air filtering mechanism (3) comprises a storage chamber (31) and a filtering chamber (32); The storage chamber (31) is connected to one end of the ventilation pipe (2); A filter screen (311) is provided on the cavity wall of the storage cavity (31); A vent hole (321) is provided on the wall of the filter chamber (32); The side of the filter screen (311) facing away from the inner wall of the storage chamber (31) is correspondingly connected to the vent hole (321); A ventilation pipe (322) corresponding to the ventilation hole (321) is arranged on the inner wall of the filter chamber (32); The filter chamber (32) contains liquid (323), and the liquid (323) is located at the lower side of the vent hole (321); One end of the vent pipe (322) facing away from the vent pipe (322) is immersed in the liquid (323); One end of the ventilation pipe (2) is connected to the fan (1); The other end of the ventilation pipe (2) is connected to the storage chamber (31).

2. The air filter device according to claim 1, characterized in that: Also includes an activated carbon filter layer (4); The activated carbon filter layer (4) is arranged in the filter chamber (32); The activated carbon filter layer (4) is located on the side of the vent (321) facing away from the liquid (323), and the activated carbon filter layer (4) covers the cross section of the filter chamber (32).

3. The air filter device according to claim 2, characterized in that: A liquid inlet hole (324) is provided on the cavity wall of the filter chamber (32), and the liquid inlet hole (324) is closed by a first hole plug.

4. The air filter device according to claim 3, characterized in that: A drainage hole (325) is provided at the bottom of the filter chamber (32), and the drainage hole (325) is closed by a second hole plug.

5. The air filter device according to claim 1, characterized in that: An air inlet hole (312) is provided on the cavity wall of the storage cavity (31); A connection end is provided at the air inlet (312) on the outer wall of the storage chamber (31); The connecting end is connected to the ventilation pipe (2).

6. The air filter device according to claim 1, characterized in that: The storage chamber (31) and the filtering chamber (32) are independent of each other.

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