Filter cartridge for gas sampling

Abstract

The utility model discloses a filter cartridge for gas sampling, which comprises a filter cartridge module, a filter element module and a gas sampling module, the isolation protection module comprises a first isolation plate, a second isolation plate and a wrapping post; the first isolation plate is arranged on one side of the top end in the cylinder body, the second isolation plate is arranged on the other side of the top end in the cylinder body, the wrapping posts are fixed to the middles of the inner sides of the first isolation plate and the second isolation plate and are attracted through electromagnetism relative to one set of wrapping posts, and a humidity sensor is arranged on the upper surface of the first isolation plate. The problems that when a fiber filter screen is adopted to filter collected air, the front portion of an existing filter cylinder for gas is generally sealed through a sealing cover, the sealing cover is directly and manually opened during use, but after sampling equipment is fixed to a position, the sealing cover is difficult to close in time in rainy and snowy weather suddenly, and the sampling equipment is inconvenient to use are solved. And the problem that the fiber filter screen is damaged is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas sampling, in particular to a filter cartridge for gas sampling. Background Technique

[0002] Gas sampling refers to collecting gas samples from the environment for subsequent analysis and detection. The filter cartridge belongs to the constituent structure of gas sampling equipment and is used to filter the sampled gas to improve the accuracy of subsequent detection of the sampled gas.

[0003] However, it still has the following drawbacks in actual use:

[0004] For the existing filter cartridge for gas sampling, when filtering the collected air with a fiber filter screen, the front part of the filter cartridge is generally sealed with a cover, and the cover can be directly opened manually during use. However, after the sampling equipment is fixed in a position, if sudden rain or snow weather occurs, it is difficult to close the cover in time, resulting in damage to the fiber filter screen. Content of the Utility Model

[0005] The purpose of the utility model is to provide a filter cartridge for gas sampling to solve the problem proposed in the above background technique, that is, for the existing filter cartridge for gas sampling, when filtering the collected air with a fiber filter screen, the front part of the filter cartridge is generally sealed with a cover, and the cover can be directly opened manually during use. However, after the sampling equipment is fixed in a position, if sudden rain or snow weather occurs, it is difficult to close the cover in time, resulting in damage to the fiber filter screen.

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model is a filter cartridge for gas sampling, including:

[0008] A filter cartridge module, the filter cartridge module includes a cylinder body;

[0009] An isolation and protection module, the isolation and protection module includes a first isolation plate, a second isolation plate, and a wire winding column;

[0010] The first isolation plate is disposed on one side of the inner top end of the cylinder body, and the second isolation plate is disposed on the other side of the inner top end of the cylinder body. The wire winding column is fixed in the middle of the inner sides of the first isolation plate and the second isolation plate, and a pair of opposite wire winding columns are electromagnetically attracted. A humidity sensor is arranged on the upper surface of the first isolation plate.

[0011] Further, the first isolation plate and the second isolation plate are semicircular, and a movable shaft penetrates through the middle of the outer sides of the first isolation plate and the second isolation plate, and the end of the movable shaft is rotatably connected to the upper end of the outer surface of the cylinder body.

[0012] Further, the filter cartridge module further includes a filter screen, a threaded pipe, and positioning columns;

[0013] The filter screens are symmetrically arranged above and below the interior of the cylinder body, and the threaded pipe is fixed to the lower end of the cylinder body. The positioning columns symmetrically penetrate through opposite sides of the outer surface of the cylinder body and extend into the filter screen.

[0014] Further, it further includes the buffer module. The buffer module includes mounting blocks, movable pipes, and movable columns;

[0015] The mounting blocks are symmetrically fixed to opposite sides above the inner surface of the cylinder body, and the movable pipe is fixed to the middle of the upper inclined surface of the mounting block. A spring is provided at the inner bottom end of the movable pipe, and the upper end of the spring is fixed to one end of the movable column.

[0016] Further, the upper inclined surface of the mounting block is set at an angle of 30° with the horizontal plane.

[0017] Further, it further includes a power supply module. The power supply module includes a power supply bin, a bin cover, and a bent pipe;

[0018] The power supply bin is fixed to the middle of the front surface of the cylinder body, and the bin cover is threaded to the middle of the front surface of the power supply bin. The end of the bent pipe communicates with the upper end of the power supply bin and one side above the outer surface of the cylinder body.

[0019] Compared with the prior art, the advantages of the present utility model are as follows:

[0020] In the present utility model, a humidity sensor is built in on the upper surface of the first isolation plate. During the filtration and use of air, in case of sudden rain or snow weather, when the humidity sensor detects humidity, the control end on the gas sampling device can be used to energize the winding columns. After the energized winding columns are magnetically attracted to each other, the first isolation plate and the second isolation plate can be attracted and closed again to protect the filter screen below, reduce the probability of damage, and save costs.

[0021] Based on the above beneficial effects, after the first isolation plate and the second isolation plate are powered off, the first isolation plate and the second isolation plate that fall under the influence of gravity come into contact with the front end of the movable column, and the spring that has been stressed restores its deformation and applies a reverse force, which can buffer and reduce noise for the falling first isolation plate and second isolation plate, and improve the use effect. Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1Closed state diagram of the first isolation plate and the second isolation plate of the present utility model;

[0024] Figure 2 Schematic diagram of the isolation protection module of the present utility model;

[0025] Figure 3 Expanded state diagram of the first isolation plate and the second isolation plate of the present utility model;

[0026] Figure 4 Schematic diagram of the buffer module of the present utility model.

[0027] In the drawings, the list of components represented by each reference numeral is as follows:

[0028] 11, cylinder body; 12, filter screen; 13, threaded pipe; 14, positioning column; 21, first isolation plate; 22, second isolation plate; 23, winding column; 24, movable shaft; 31, mounting block; 32, movable pipe; 33, movable column; 41, power supply bin; 42, bin cover; 43, elbow pipe. Detailed implementation manners

[0029] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific implementation manners of the present utility model will be given with reference to the drawings.

[0030] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar promotions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific implementation manners disclosed below.

[0031] In order to make the purpose, technical solution and advantages of the present utility model clearer, the following will further describe the implementation manners of the present utility model in detail with reference to the drawings.

[0032] Please refer to Figures 1-4 As shown, this embodiment is a filter cartridge for gas sampling, including:

[0033] A filter cartridge module, the filter cartridge module includes a cylinder body 11;

[0034] The cylinder body 11 is the main installation carrier of the filter cartridge module;

[0035] The filter cartridge module further includes a filter screen 12, a threaded pipe 13, and a positioning column 14;

[0036] The filter screen 12 is symmetrically arranged above and below the inside of the cylinder body 11, and the threaded pipe 13 is fixed to the lower end of the cylinder body 11. The positioning column 14 symmetrically penetrates through the opposite sides of the outer surface of the cylinder body 11 and extends into the filter screen 12;

[0037] The filter screen 12 filters the collected air, the threaded pipe 13 threadedly installs the cylinder body 11 and the external sampling device, the threaded connection is conducive to the disassembly and assembly of the structure, and the positioning column 14 structurally installs the filter screen 12;

[0038] Isolation protection module, the isolation protection module includes a first isolation plate 21, a second isolation plate 22, and a winding column 23;

[0039] The first isolation plate 21 is arranged on one side of the inner top end of the cylinder body 11, and the second isolation plate 22 is arranged on the other side of the inner top end of the cylinder body 11. The winding column 23 is fixed in the middle of the inner sides of the first isolation plate 21 and the second isolation plate 22, and a set of opposite winding columns 23 are electromagnetically attracted. A humidity sensor is provided on the upper surface of the first isolation plate 21;

[0040] After the winding column 23 is powered on, through the magnetic attraction between a set of winding columns 23, the first isolation plate 21 and the second isolation plate 22 can be magnetically closed to protect the filter screen 12 below. After power off, the first isolation plate 21 and the second isolation plate 22 unfold to meet the normal gas collection. The built-in humidity sensor is used to detect external rain and snow to determine the opening and closing of the first isolation plate 21 and the second isolation plate 22;

[0041] The first isolation plate 21 and the second isolation plate 22 are set to be semi-circular, and a movable shaft 24 penetrates through the middle of the outer sides of the first isolation plate 21 and the second isolation plate 22. The end of the movable shaft 24 is rotatably connected to the upper end of the outer surface of the cylinder body 11;

[0042] The semi-circular setting of the first isolation plate 21 and the second isolation plate 22 meets the requirements of opening and closing. The movable shaft 24 installs the first isolation plate 21 and the second isolation plate 22, and the movable connection method meets the requirements of the rotation angle of opening and closing;

[0043] It also includes a power supply module, and the power supply module includes a power supply bin 41, a bin cover 42, and a bent pipe 43;

[0044] The power supply bin 41 is fixed in the middle of the front of the cylinder body 11, and the bin cover 42 is threaded in the middle of the front of the power supply bin 41. The end of the bent pipe 43 communicates with the upper end of the power supply bin 41 and the upper side of the outer surface of the cylinder body 11;

[0045] The power supply bin 41 provides the power required by the winding column 23. The bin cover 42 shields the front of the power supply bin 41 and can be used for maintenance operations after being opened. The bent pipe 43 is used to put in wires to electrically connect the power supply bin 41 with the winding column 23 and the control end of the external sampling device;

[0046] Working principle: After the filter screen 12 is installed and fixed by using the positioning column 14 in the upper and lower parts of the cylinder body 11 in sequence, the cylinder body 11 and the external sampling device are installed through the threaded pipe 13;

[0047] Next, the first isolation plate 21 and the second isolation plate 22 are respectively installed on both sides above the inside of the cylinder body 11 through the movable shaft 24, and the power supply bin 41 is electrically connected to the winding posts 23 on the inner sides of the first isolation plate 21 and the second isolation plate 22 and the control end of the external sampling device through wires. The built-in humidity sensor on the upper surface of the first isolation plate 21 is also electrically connected to the control end of the external sampling device through a wire;

[0048] Then, in case of sudden rain or snow weather, the external control end receives the data signal, and the power supply bin 41 supplies power to the winding posts 23. After the power supply, the winding posts 23 are magnetically attracted to each other, so that the first isolation plate 21 and the second isolation plate 22 are in a closed state to protect the lower filter screen 12;

[0049] This solution can actively protect the filter screen 12, reduce damage and save costs.

[0050] Please refer to Figures 1-4 As shown, based on the above Embodiment 1, this embodiment further includes a buffer module. The buffer module includes a mounting block 31, a movable tube 32, and a movable column 33;

[0051] The mounting blocks 31 are symmetrically fixed on the opposite sides above the inner surface of the cylinder body 11, and the movable tube 32 is fixed in the middle of the upper inclined surface of the mounting block 31. A spring is provided at the inner bottom end of the movable tube 32, and the upper end of the spring is fixed to one end of the movable column 33;

[0052] The mounting block 31 structurally fixes the movable tube 32. The movable column 33 can be structurally installed by using the spring in cooperation with the movable tube 32. The movable column 33 contacts the falling first isolation plate 21 and the second isolation plate 22 to buffer their falling and reduce damage;

[0053] The upper inclined surface of the mounting block 31 is set at an angle of 30° with the horizontal plane;

[0054] Working principle: During the unfolding of the first isolation plate 21 and the second isolation plate 22, the front end of the movable column 33 contacts the back surfaces of the falling first isolation plate 21 and the second isolation plate 22, and the spring after being stressed restores its deformation and applies a reaction force to the first isolation plate 21 and the second isolation plate 22 to buffer them;

[0055] This solution can reduce the damage degree of the first isolation plate 21 and the second isolation plate 22 and achieve a noise reduction effect, which is convenient to use.

[0056] In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and defined, the terms "arranged", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0057] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A filter cartridge for gas sampling, characterized in that: include: A filter cartridge module, the filter cartridge module comprising a cartridge body (11); An isolation protection module, the isolation protection module comprising a first isolation plate (21), a second isolation plate (22), and a winding pole (23); The first isolation plate (21) is arranged on one side of the top end of the cylinder (11), and the second isolation plate (22) is arranged on the other side of the top end of the cylinder (11). The winding pole (23) is fixed to the middle part of the inner side of the first isolation plate (21) and the second isolation plate (22), and is electromagnetically attracted to one group of the winding poles (23). A humidity sensor is provided on the upper surface of the first isolation plate (21).

2. A gas sampling filter cartridge according to claim 1, characterized in that: The first isolation plate (21) and the second isolation plate (22) are configured to be semicircular, and a movable shaft (24) passes through the middle of the outer side of the first isolation plate (21) and the second isolation plate (22), and the end of the movable shaft (24) is rotatably connected to the upper end of the outer surface of the cylinder (11).

3. A gas sampling filter cartridge according to claim 1, characterized in that: The filter cartridge module also includes a filter screen (12), a threaded tube (13), and a positioning column (14); The filter screen (12) is symmetrically arranged at the upper and lower parts inside the cylinder (11), and the threaded tube (13) is fixed to the lower end of the cylinder (11). The positioning column (14) symmetrically passes through the opposite sides of the outer surface of the cylinder (11) and extends into the filter screen (12).

4. A gas sampling filter cartridge according to claim 1, characterized in that: It also includes a buffer module, which includes a mounting block (31), a movable tube (32), and a movable column (33); The mounting block (31) is symmetrically fixed on opposite sides above the inner surface of the cylinder (11), and the movable tube (32) is fixed to the middle of the inclined surface above the mounting block (31). A spring is provided at the bottom end of the movable tube (32), and the upper end of the spring is fixed to one end of the movable column (33).

5. A gas sampling filter cartridge according to claim 4, characterized in that: The upper inclined surface of the mounting block (31) is set at an angle of 30° to the horizontal plane.

6. A gas sampling filter cartridge according to claim 1, characterized in that: It also includes a power supply module, which includes a power supply bin (41), a bin cover (42), and a bent pipe (43); The power supply bin (41) is fixed to the middle of the front face of the cylinder (11), and the bin cover (42) is threaded on the middle of the front face of the power supply bin (41), and the end of the curved pipe (43) is connected to the upper end of the power supply bin (41) and the upper side of the outer surface of the cylinder (11).

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