Air pipe filtering device

Abstract

The utility model belongs to the technical field of filtering, and particularly relates to an air pipe filtering device which comprises a filtering shell, the left end of the filtering shell is communicated with an air inlet pipe, the upper side and the lower side of the filtering shell are respectively connected with an upper shell and a lower shell in a threaded mode, the right end of the air inlet pipe penetrates into the lower shell through a guide pipe, and a separation layer is additionally arranged in the upper shell. First gas separation membranes are arranged in the separation layer at equal intervals, the right end of the filtering shell is communicated with a flow dividing shell, a second gas separation membrane is installed on the top of the flow dividing shell, and air holes of the first gas separation membranes are different from air holes of the second gas separation membrane. According to the gas separation device, gas components can be quickly separated during selection of deviated gas components, separated gas can be collected in a split-flow manner, waste of materials for gas component treatment is facilitated, and waste of part of gas components is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering, in particular to a trachea filtering device. Background Art

[0002] Gas filters are widely used in metallurgy, chemical industry, petroleum, papermaking, medicine, food, mining, electricity, and urban water supply, and there are many ways to filter gas.

[0003] An existing patent (publication number CN110152151A) and a tracheal cannula for antibacterial filtration are disclosed. This patent installs a cannula extension tube connected to the tracheal cannula on a fixed bracket, and sets an antibacterial filtration mechanism with gauze as the main body at the end of the cannula extension tube. The edge of the gauze is in the saline storage chamber, and the water absorption of the gauze is used to automatically absorb the physiological saline in the saline storage chamber to keep it moist, thereby moistening and filtering the air to prevent dust in the air from directly entering the trachea. Due to the biased requirements for gas in the field of biosafety, some gas components in the air or gas tank are unnecessary and need to be processed by personnel, which often takes a lot of time, such as precipitation method or degradation method, which requires loss of materials for processing and wastes some gas components.

[0004] Therefore, we propose a tracheal filtering device, which is conducive to the rapid separation of gas components when biased gas components are selected, and the separated gas is collected by diversion, which is conducive to wasting materials for gas component processing and avoiding the waste of some gas components. Utility Model Content

[0005] The purpose of the utility model is to provide a tracheal filtering device to solve the problem raised in the above-mentioned background technology that due to the biased requirements for gas in the field of biosafety, some gas components in the air or gas tank are unnecessary and need to be processed by personnel, which often takes a lot of time, such as precipitation method or degradation method, resulting in the need for loss of materials for processing and the waste of some gas components.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a trachea filter device, comprising a filter shell, the left end of the filter shell is connected to an air intake pipe, the upper and lower sides of the filter shell are respectively threadedly connected with an upper shell and a lower shell, the right end of the air intake pipe penetrates into the lower shell through a guide pipe, a separation layer is added to the interior of the upper shell, a first gas separation membrane is equidistantly arranged inside the separation layer, the right end of the filter shell is connected to a diverter shell, a second gas separation membrane is installed on the top of the diverter shell, and the air pores of the first gas separation membrane are different from the air pores of the second gas separation membrane.

[0007] Preferably, the right end of the air inlet pipe is connected to a guide pipe, and the right end of the guide pipe penetrates into the liquid layer of the lower shell.

[0008] Preferably, a filter screen is provided at the connection between the upper shell and the filter shell, the top of the upper shell is connected to an exhaust pipe, and a seal is screwed on the bottom of the diverter shell.

[0009] Preferably, the filter cavity inside the filter shell is connected to the inside of the diverter shell, and a filter screen is installed between the diverter shell and the second gas separation membrane.

[0010] Preferably, a sealing cover is screwed on the right end of the filter shell, and the sealing cover forms a closure corresponding to the right end of the filter shell.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1) The trachea filter device of the utility model is provided with an upper shell, a diverter shell, a first gas separation membrane and a second gas separation membrane. By engaging the first gas separation membrane with the interior of the upper shell, and connecting the diverter shell with the filter shell, part of the gas in the external gas passes through the first gas separation membrane and the second gas separation membrane and is discharged from the exhaust pipe. This is beneficial to quickly complete the separation of gas components when biased gas components are selected, and to form a diverter collection for the separated gas, which is beneficial to waste materials for gas component processing and avoid waste of part of the gas components.

[0013] 2) The trachea filtering device of the utility model is provided with an upper shell, a filter screen and a lower shell. A filter screen is installed between the upper shell and the filter shell. The upper shell can be removed to replace its internal separation layer, so that the first gas separation membrane in the separation layer in the upper shell can be replaced according to the actual gas composition. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the trachea filtering device of the utility model;

[0015] Figure 2 This is a schematic diagram of the overall internal structure of the trachea filtering device of the utility model;

[0016] Figure 3 The utility model is a schematic diagram of the sealing structure of the filter shell of the trachea filter device.

[0017] In the figure: 1. air inlet pipe; 2. filter shell; 3. exhaust pipe; 4. upper shell; 5. lower shell; 6. guide pipe; 7. separation layer; 8. filter screen; 9. filter chamber; 10. cover; 11. liquid layer; 12. diverter shell; 13. first gas separation membrane; 14. second gas separation membrane. DETAILED DESCRIPTION

[0018] 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.

[0019] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0020] Example:

[0021] See also Figure 1-3 The utility model provides a technical solution: a trachea filter device, comprising a filter shell 2, the left end of the filter shell 2 is connected to an air intake pipe 1, and external air enters the filter shell 2 through the air intake pipe 1, and the upper and lower sides of the filter shell 2 are respectively threadedly connected with an upper shell 4 and a lower shell 5, and the upper shell 4 and the lower shell 5 are both in the shape of a topless cylindrical body, and the right end of the air intake pipe 1 penetrates into the lower shell 5 through a guide pipe 6, and a separation layer 7 is added to the upper shell 4, and first gas separation membranes 13 are equidistantly arranged inside the separation layer 7. First gas separation membranes 13 of different specifications are selected according to the gas to be separated, and the right end of the filter shell 2 is connected to a diverter shell 12, and a second gas separation membrane 14 is installed on the top of the diverter shell 12. Similarly, the second gas separation membrane 14 is selected according to the need to separate another gas, and the air permeability of the first gas separation membrane 13 is different from that of the second gas separation membrane 14. The specifications of the first gas separation membrane 13 and the second gas separation membrane 14 need to be adjusted according to the separated gas.

[0022] Among them, the right end of the air intake pipe 1 is connected to the guide pipe 6, the air intake pipe 1 and the guide pipe 6 are interconnected, the right end of the guide pipe 6 penetrates into the liquid layer 11 of the lower shell 5, the guide pipe 6 penetrates into the liquid layer 11 of the lower shell 5, and the liquid layer 11 adjusts the liquid composition according to the composition of the gas.

[0023] Among them, a filter screen 8 is provided at the connection between the upper shell 4 and the filter shell 2, and the upper shell 4 and the filter shell 2 are separated by the filter screen 8. The top of the upper shell 4 is connected to an exhaust pipe 3, and the required gas is discharged from the exhaust pipe 3 through the first gas separation membrane 13. The bottom of the diverter shell 12 is screwed with a seal.

[0024] The filter chamber 9 inside the filter shell 2 is connected to the inside of the diverter shell 12, and the gas enters the diverter shell 12 through the filter chamber 9 of the filter shell 2. A filter screen 8 is installed between the diverter shell 12 and the second gas separation membrane 14, and the filter screen 8 is made of metal.

[0025] The right end of the filter shell 2 is screwed with a sealing cover 10 , and the sealing cover 10 is sealed corresponding to the right end of the filter shell 2 , and the sealing cover 10 forms a sealed container corresponding to the filter shell 2 .

[0026] Working principle: connect the diverter shell 12 to the corresponding filter shell 2, and replace the first gas separation membrane 13 and the second gas separation membrane 14 according to the actual gas needs, and engage the first gas separation membrane 13 with the corresponding upper shell 4, so that part of the external gas enters the filter chamber 9 through the intake pipe 1, and then enters the liquid layer 11 of the lower shell 5 through the guide pipe 6. The gas floats through the liquid layer 11, and then the gas passes through the first gas separation membrane 13 and the second gas separation membrane 14 and passes through the two sets of exhaust pipes 3 to discharge the required gas.

[0027] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model, and any figure marks in the claims should not be regarded as limiting the claims involved.

[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 trachea filter device, comprising a filter housing (2), wherein the left end of the filter housing (2) is connected to an air inlet pipe (1), characterized in that: The filter shell (2) is threadedly connected to an upper shell (4) and a lower shell (5) on the upper and lower sides respectively. The right end of the air inlet pipe (1) penetrates into the lower shell (5) through a guide pipe (6). A separation layer (7) is added inside the upper shell (4). First gas separation membranes (13) are equidistantly arranged inside the separation layer (7). The right end of the filter shell (2) is connected to a diverter shell (12). A second gas separation membrane (14) is installed on the top of the diverter shell (12). The air vents of the first gas separation membrane (13) are different from the air vents of the second gas separation membrane (14).

2. A tracheal filtering device according to claim 1, characterized in that: The right end of the air inlet pipe (1) is connected to a guide pipe (6), and the right end of the guide pipe (6) penetrates into the liquid layer (11) of the lower shell (5).

3. A tracheal filtering device according to claim 1, characterized in that: A filter screen (8) is provided at the connection between the upper shell (4) and the filter shell (2), the top of the upper shell (4) is connected to an exhaust pipe (3), and a seal is screwed on the bottom of the diversion shell (12).

4. A tracheal filtering device according to claim 1, characterized in that: The filter chamber (9) inside the filter shell (2) is connected to the inside of the flow splitter shell (12), and a filter screen (8) is installed between the flow splitter shell (12) and the second gas separation membrane (14).

5. The trachea filtering device according to claim 1, characterized in that: The right end of the filter housing (2) is screwed with a sealing cover (10), and the sealing cover (10) forms a seal corresponding to the right end of the filter housing (2).

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