Gas production and dust removal device of gas analyzer

Abstract

The utility model relates to the technical field of gas production and dust removal of gas analyzers, in particular to a gas production and dust removal device of a gas analyzer. Comprising a barrel body, a dust filtering barrel, a barrel cover, a dust brushing brush, a rectangular dust discharging frame, a cap cover, an air inlet nozzle, a first bearing, a first short shaft, a sliding ring, a hollow hexagonal prism, an air outlet connector, a short hexagonal prism, a second bearing, a second short shaft, a circular mounting plate and a barrel-shaped filter screen. The dust filtering device is ingenious in structure, the dust filtering cylinder of the device can rotate easily, when dust accumulates on the surface of the cylindrical filter screen, the hollow hexagonal prism is rotated, the whole dust filtering cylinder can rotate, bristles of the dust brushing brush clean the surface of the cylindrical filter screen at the moment, the cleaned dust is discharged out of the cylinder through the rectangular dust discharging frame, the device does not need to be disassembled and assembled, operation is convenient, and practicability is high. Cleaning of the dust filtering cylinder is greatly facilitated, and the dust removal efficiency of the device is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of gas sampling and dust removal technology for gas analyzers, specifically a gas sampling and dust removal device for a gas analyzer. Background Technology

[0002] When a gas analyzer analyzes and detects gas, it first needs to collect the gas to be tested through a gas sampling device and bring it into the analyzer. However, in the actual gas sampling process, the gas often contains impurities such as dust. If this dust directly enters the gas analyzer, it will clog the instrument's pipes, contaminate the internal components of the analyzer, affect the normal operation and detection accuracy of the gas analyzer, and even damage the instrument and shorten its service life. Therefore, a dust removal device is needed to effectively remove dust from the gas during the gas sampling process. However, existing gas sampling dust removal devices have some shortcomings. The filters of existing dust removal devices are mostly fixed inside the housing, which is inconvenient to disassemble and install. After long-term use, a large amount of dust will accumulate on the surface of the filter components. Existing devices often cannot quickly and easily clean the filter components, affecting the dust removal efficiency and normal operation of the device. Utility Model Content

[0003] The purpose of this invention is to provide a gas sampling and dust removal device for a gas analyzer to solve the aforementioned technical problems.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a gas sampling and dust removal device for a gas analyzer, comprising a cylinder, a dust filter, and a cylinder cover. The cylinder cover is threaded onto one end of the cylinder. The dust filter is installed inside the cylinder. A short hexagonal prism is fixedly connected to one end of the dust filter, and a hollow hexagonal prism is fixedly connected to the other end. A first short shaft is rotatably installed at the center of the cylinder's end face away from the cylinder cover via a first bearing. A groove adapted to the short hexagonal prism is opened at one end of the first short shaft, and the short hexagonal prism is engaged in the groove of the first short shaft. A second short shaft is rotatably installed through the center of one side plate of the cylinder cover via a second bearing. The second short shaft has a through hole adapted to the hollow hexagonal prism, and the hollow hexagonal prism is installed through the through hole of the second short shaft. A dust discharge groove is opened on the cylinder. A rectangular dust discharge frame is installed in the dust discharge groove. A dust brush is installed at the center line of the top of the rectangular dust discharge frame, and the bristles of the dust brush are in contact with the dust filter.

[0005] Preferably, the dust filter cartridge consists of a cylindrical filter screen and two circular mounting plates. The two ends of the cylindrical filter screen are fixed to the two circular mounting plates respectively. The filter screen pore size of the cylindrical filter screen is between 0.1μm and 10μm. A short hexagonal prism is fixedly connected to the center of one side of a circular mounting plate, and a hollow hexagonal prism is fixedly connected through to the center of one side of the other circular mounting plate. An air outlet connector is installed at one end of the hollow hexagonal prism for connecting to the air inlet pipe of the gas analyzer.

[0006] Preferably, an air inlet is installed through the cylinder body for connecting to the extension pipe when using the extension pipe for air sampling. It also includes a cap adapted to the rectangular dust collection frame. The cap is snapped onto the bottom of the rectangular dust collection frame. A sealing strip is installed at the contact point between the cap and the rectangular dust collection frame to facilitate sealing of the rectangular dust collection frame when using the extension pipe to connect to the air inlet for air sampling. Slip rings are fixedly connected to the inner walls at both ends of the cylinder body. The inner walls of the slip rings contact the circular mounting plate and are used to be set outside the circular mounting plate to improve the stability of the dust filter cylinder installation.

[0007] Preferably, the cylinder is a transparent cylinder, which makes it easy to observe the dust condition on the surface of the dust filter cylinder.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0009] This invention features a clever structure. The dust filter cartridge can be easily rotated. When dust accumulates on the surface of the cylindrical filter screen, rotating the hollow hexagonal prism allows the entire dust filter cartridge to rotate. At this time, the bristles of the dust brush clean the surface of the cylindrical filter screen, and the cleaned dust is discharged from the cartridge through the rectangular dust discharge frame. There is no need to disassemble the device, making it easy to operate and greatly facilitating the cleaning of the dust filter cartridge, thus ensuring the dust removal efficiency of the device. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0011] Figure 2 This is a schematic diagram of the assembly structure of this utility model;

[0012] Figure 3 This is a schematic cross-sectional view of the cylindrical body of this utility model in the horizontal direction;

[0013] Figure 4 This utility model Figure 1 Front sectional view;

[0014] Figure 5 This is a schematic diagram of the dust filter cartridge structure of this utility model.

[0015] In the diagram: 1. Cylinder body; 2. Dust filter cylinder; 3. Cylinder cover; 4. Dust brush; 11. Rectangular dust removal frame; 11a. Cap; 12. Air inlet; 13. First bearing; 14. First short shaft; 15. Slip ring; 21. Hollow hexagonal prism; 22. Air outlet connector; 23. Short hexagonal prism; 31. Second bearing; 32. Second short shaft; 201. Circular mounting plate; 202. Cylindrical filter screen. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1 to 5 This utility model provides a technical solution: a gas sampling and dust removal device for a gas analyzer, comprising a cylinder 1, a dust filter 2, and a cylinder cover 3. The cylinder cover 3 is threaded onto one end of the cylinder 1. The dust filter 2 is installed inside the cylinder 1. A short hexagonal prism 23 is fixedly connected to one end of the dust filter 2, and a hollow hexagonal prism 21 is fixedly connected to the other end. A first short shaft 14 is rotatably mounted at the center of the end face of the cylinder 1 away from the cylinder cover 3 via a first bearing 13. One end of the first short shaft 14 has a groove adapted to the short hexagonal prism 23, and the short hexagonal prism 23 is engaged in the groove of the first short shaft 14. A second short shaft 32 is rotatably mounted through the center of one side plate of the cylinder cover 3 via a second bearing 31. The second short shaft 32 has a through hole adapted to the hollow hexagonal prism 21, and the hollow hexagonal prism 21 is installed through the through hole of the second short shaft 32. A dust discharge groove is provided on the cylinder 1, and a rectangular dust discharge frame 11 is installed in the dust discharge groove. The top of the rectangular dust discharge frame 11... A dust brush 4 is installed at the center line, and the bristles of the dust brush 4 are in contact with the dust filter cartridge 2. The dust filter cartridge 2 is composed of a cylindrical filter screen 202 and two circular mounting plates 201. The two ends of the cylindrical filter screen 202 are fixed to the two circular mounting plates 201 respectively. A short hexagonal prism 23 is fixedly connected to the center of one side of a circular mounting plate 201, and a hollow hexagonal prism 21 is fixedly connected through to the center of one side of another circular mounting plate 201. An air outlet connector 22 is installed at one end of the hollow hexagonal prism 21 for connecting to the air inlet pipe of the gas analyzer. An air inlet nozzle 12 is installed through the cylinder 1 for connecting to the extension pipe when using the extension pipe for air sampling. It also includes a cap 11a that is adapted to the rectangular dust discharge frame 11 for sealing the rectangular dust discharge frame 11 when the extension pipe is used for air sampling. Slip rings 15 are fixedly connected to the inner walls at both ends of the cylinder 1 for setting outside the circular mounting plates 201 to improve the stability of the dust filter cartridge 2 installation.

[0018] Furthermore, the dust filter cartridge 2 is composed of a cylindrical filter screen 202 and two circular mounting plates 201. The two ends of the cylindrical filter screen 202 are fixed to the two circular mounting plates 201 respectively. The filter screen aperture of the cylindrical filter screen 202 is 1μm. A short hexagonal prism 23 is fixedly connected to the center of one side of a circular mounting plate 201, and a hollow hexagonal prism 21 is fixedly connected through the center of one side of another circular mounting plate 201. An air outlet connector 22 is installed at one end of the hollow hexagonal prism 21 for connecting to the air inlet pipe of the gas analyzer.

[0019] Furthermore, an air inlet 12 is installed through the cylinder 1 for connecting to the extension pipe when gas sampling is performed using the extension pipe. It also includes a cap 11a that is adapted to the rectangular dust collection frame 11. The cap 11a is snapped onto the bottom of the rectangular dust collection frame 11. A sealing strip is installed at the contact point between the cap 11a and the rectangular dust collection frame 11 to facilitate sealing of the rectangular dust collection frame 11 when gas sampling is performed using the extension pipe and the air inlet 12. This prevents dust from entering the cylinder 1 from the rectangular dust collection frame 11 when gas sampling is performed using the extension pipe, thus affecting the gas sampling accuracy. Slip rings 15 are fixedly connected to the inner walls at both ends of the cylinder 1 for setting outside the circular mounting plate 201 to improve the stability of the dust filter cylinder 2 installation.

[0020] Furthermore, the inner diameter of the slip ring 15 is adapted to the outer diameter of the circular mounting plate 201, which enhances the installation stability of the dust filter cartridge 2 inside the cylinder 1. The cylinder 1 is a transparent cylinder, which makes it easy to observe the dust condition on the surface of the dust filter cartridge 2.

[0021] The working process of this utility model is as follows:

[0022] like Figure 1 - Figure 4 As shown, when the gas analyzer collects gas, one end of the gas collection pipe is connected to the gas outlet connector 22. The collected gas enters the cylinder 1 through the inlet 12 or the rectangular dust removal frame 11, and then passes through the cylindrical filter screen 202 of the dust filter cylinder 2. The cylindrical filter screen 202 can filter the dust in the gas. The filtered dust-laden gas finally flows out through the gas outlet connector 22 and finally enters the gas analyzer. When dust accumulates on the surface of the cylindrical filter screen 202, the hollow hexagonal prism 21 can be rotated to make the entire dust filter cylinder 2 rotate. When the dust filter cylinder 2 rotates, the bristles of the dust brush 4 clean the surface of the cylindrical filter screen 202. The cleaned dust flows out of the cylinder 1 through the rectangular dust removal frame 11 without disassembly, which greatly facilitates the cleaning of the surface of the cylindrical filter screen 202 and helps to ensure the dust removal efficiency of the device.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A gas sampling and dust removal device for a gas analyzer, characterized in that: The device includes a cylinder (1), a dust filter (2), and a cover (3). The cover (3) is threaded onto one end of the cylinder (1). The dust filter (2) is installed inside the cylinder (1). A short hexagonal prism (23) is fixedly connected to one end of the dust filter (2), and a hollow hexagonal prism (21) is fixedly connected to the other end. A first short shaft (14) is rotatably mounted on the center of the end face of the cylinder (1) away from the cover (3) via a first bearing (13). One end of the first short shaft (14) has a groove that fits the short hexagonal prism (23). The hexagonal prism (23) is snapped into the slot of the first short shaft (14). The second short shaft (32) is rotatably installed through the center of one side plate of the cylinder cover (3) via the second bearing (31). The second short shaft (32) has a through hole adapted to the hollow hexagonal prism (21). The hollow hexagonal prism (21) is installed through the through hole of the second short shaft (32). A dust discharge groove is provided on the cylinder (1). A rectangular dust discharge frame (11) is installed in the dust discharge groove. A dust brush (4) is installed at the center line of the top of the rectangular dust discharge frame (11).

2. The gas sampling and dust removal device for the gas analyzer according to claim 1, characterized in that: The bristles of the dust brush (4) are in contact with the dust filter (2).

3. The gas sampling and dust removal device for the gas analyzer according to claim 1, characterized in that: The dust filter cartridge (2) consists of a cylindrical filter screen (202) and two circular mounting plates (201). The two ends of the cylindrical filter screen (202) are fixed on the two circular mounting plates (201). A short hexagonal prism (23) is fixedly connected to the center of one side of a circular mounting plate (201). A hollow hexagonal prism (21) is fixedly connected through the center of one side of another circular mounting plate (201). An air outlet connector (22) is installed at one end of the hollow hexagonal prism (21).

4. The gas sampling and dust removal device for the gas analyzer according to claim 1, characterized in that: It also includes a cap (11a) that fits into the rectangular dust collection frame (11).

5. The gas sampling and dust removal device for the gas analyzer according to claim 1, characterized in that: Slip rings (15) are fixedly connected to the inner walls at both ends of the cylinder (1).

6. The gas sampling and dust removal device for the gas analyzer according to claim 4, characterized in that: An air inlet (12) is installed through the cylinder (1).

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