Precise gas filter

Abstract

The utility model discloses a precise gas filter which comprises a gas chamber, a pressure sensor is mounted on the other edge of the bottom of the outer wall of the gas chamber in an inserting manner, and a flow sensor is distributed on one side of the pressure sensor. According to the precise gas filter, through the fine filtering layer, the middle filtering layer and the rough filtering layer, the rough filtering layer is of a high-strength metal wire mesh and porous foam metal composite structure, the metal wire mesh intercepts large-particle impurities, the porous foam metal further captures small particles, the primary filtering effect is improved, and the secondary filtering effect is improved. The electrostatic adsorption middle filter layer is made of a fiber felt material with static electricity and can adsorb micro particles with charges and part of aerosol in the gas and reduce the follow-up filtering burden, and the chemical adsorption middle filter layer is filled with specially-made adsorbent particles which can chemically react with specific harmful chemical components in the gas to remove the specific harmful chemical components; in addition, real-time monitoring can be carried out through a pressure sensor and a flow sensor, and maintenance and use can be carried out through opening and closing of a maintenance cover plate.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, specifically to a precision gas filter. Background Technology

[0002] With the development of society and economy, in the production process of large industrial enterprises (such as coal mines, petroleum, air separation, etc.), it is necessary to detect the concentration of gases (such as CO, CO2, O2, etc.) generated in certain production processes to maintain normal production. During the detection process, the sample gas entering the analyzer must be pure and free of impurities. Therefore, before the detection, the sample gas should be purified and treated accordingly to ensure the accuracy of the sample gas concentration and to prevent the sample gas from corroding or damaging the instrument after entering it.

[0003] Existing precision gas filters and their manufacturing methods (CN200810030031.6) are easy to disassemble and replace, can more effectively remove impurities from gases, thus effectively protecting analytical instruments and offering high cost-effectiveness. However, they have shortcomings: the existing equipment has poor filtration effect and poor gas chamber protection, cannot effectively monitor gases, and cannot quickly discharge pollutants, making them unsafe to use. Therefore, a precision gas filter is needed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a precision gas filter to solve the problems mentioned in the background art, such as poor filtration effect, poor gas chamber protection, inability to effectively monitor gas, inability to quickly discharge pollutants, and unsafe use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a precision gas filter, comprising a gas chamber, one end of which is connected to an inlet pipe and the other end of which is connected to an outlet pipe. A vibration motor is installed on the front edge of the gas chamber, and a connecting hinge is installed on the upper front end of the gas chamber. A maintenance cover is installed on the other side of the connecting hinge, and a locking knob is inserted through the lower front end of the maintenance cover and the lower front end of the gas chamber. An outer pad is attached to the outer wall of the gas chamber and the maintenance cover, and an inner pad is attached to the inner wall of the gas chamber and the maintenance cover. Splicing slots are fixedly connected to both sides and the middle of the inner wall of the gas chamber, and a fine filter layer, an intermediate filter layer, and a coarse filter layer are respectively inserted into the middle of the splicing slots. An automatic valve is connected to the bottom edge of the outer wall of the gas chamber, and a drain pipe is connected to the lower end of the automatic valve. A pressure sensor is inserted into the other bottom edge of the outer wall of the gas chamber, and a flow sensor is distributed on one side of the pressure sensor.

[0006] Preferably, the maintenance cover is connected to the air chamber via a hinge to open and close in a flip-down manner, and the maintenance cover is fixedly connected to the air chamber via a locking knob. The maintenance cover has a semi-circular structure.

[0007] Preferably, the sewage pipe is electrically connected to the air chamber via an automatic valve, and the air chamber is connected to the sewage pipe via a vibration motor.

[0008] Preferably, the outer pad is made of thermal insulation cotton, the inner pad is made of anti-corrosion coating material, and the inner pad and the outer pad are clamped together inside and outside the air chamber and maintenance cover.

[0009] Preferably, the fine filter layer is made of porous ceramic material, the intermediate filter layer is a dual-layer structure of electrostatic adsorption and chemical adsorption, and the coarse filter layer is a composite structure of metal wire mesh and porous foam metal. The coarse filter layer, intermediate filter layer and fine filter layer are installed in parallel with the gas chamber through splicing slots, and the splicing slots are funnel structures.

[0010] Preferably, the pressure sensor and the flow sensor are two integrated structures, and the pressure sensor and the flow sensor are installed through and inserted into the air chamber.

[0011] Compared with existing technologies, the advantages of this utility model are as follows: This precision gas filter can achieve the following through a fine filter layer, an intermediate filter layer, and a coarse filter layer: The coarse filter layer adopts a composite structure of high-strength metal wire mesh and porous foam metal. The metal wire mesh intercepts larger particulate impurities, while the porous foam metal further captures smaller particles, improving the initial filtration effect. The electrostatic adsorption intermediate filter layer is made of electrostatically charged fiber felt material, which can adsorb charged microparticles and some aerosols in the gas, reducing the burden on subsequent filtration. The chemical adsorption intermediate filter layer is filled with specially made adsorbent particles, which can react with specific harmful chemical components in the gas to remove them. The fine filter layer is a nano-porous ceramic filter membrane with a special hydrophobic treatment on the membrane surface, which can effectively filter nano-sized particles and molecular-level impurities in the gas, achieving high-precision gas filtration. It can also be monitored in real time by pressure sensors and flow sensors, and can be maintained by opening and closing the maintenance cover. Attached Figure Description

[0012] Figure 1 This is a front view of a precision gas filter according to the present invention;

[0013] Figure 2 This is a schematic diagram of the internal structure of a precision gas filter according to the present invention;

[0014] Figure 3 This utility model relates to a precision gas filter. Figure 2 Enlarged view of point A in the middle;

[0015] Figure 4This utility model relates to a precision gas filter. Figure 2 Enlarged view at point B in the middle;

[0016] Figure 5 This utility model relates to a precision gas filter. Figure 2 Enlarged view of point C in the middle.

[0017] In the diagram: 1. Air chamber, 2. Maintenance cover, 3. Inlet pipe, 4. Outlet pipe, 5. Vibration motor, 6. Drain pipe, 7. Outer wrapping pad, 8. Connecting hinge, 9. Fine filter layer, 10. Pressure sensor, 11. Flow sensor, 12. Intermediate filter layer, 13. Automatic valve, 14. Coarse filter layer, 15. Splicing slot, 16. Inner pad, 17. Locking knob. Detailed Implementation

[0018] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-5 This utility model provides a technical solution: a precision gas filter, including a gas chamber 1, a maintenance cover 2, an inlet pipe 3, an outlet pipe 4, a vibration motor 5, a drain pipe 6, an outer pad 7, a connecting hinge 8, a fine filter layer 9, a pressure sensor 10, a flow sensor 11, an intermediate filter layer 12, an automatic valve 13, a coarse filter layer 14, a splicing slot 15, an inner pad 16, and a locking knob 17. One end of the gas chamber 1 is connected to the inlet pipe 3, and the other end of the gas chamber 1 is connected to the outlet pipe 4. The front edge of the gas chamber 1 is fitted with... The air chamber 1 is equipped with a vibration motor 5 and a connecting hinge 8 is installed on the upper front side. A maintenance cover 2 is installed on the other side of the connecting hinge 8. A locking knob 17 is installed through the lower front side of the maintenance cover 2 and the lower front side of the air chamber 1. The maintenance cover 2 is flipped open and closed with the air chamber 1 via the connecting hinge 8, and the maintenance cover 2 is locked and fixed to the air chamber 1 via the locking knob 17. The maintenance cover 2 has a semi-circular structure, which makes it easy and quick to open and close the maintenance cover 2, and facilitates the quick replacement of the fine filter layer 9, the intermediate filter layer 12 and the coarse filter layer 14.

[0020] An outer pad 7 is attached to the outer wall of the air chamber 1 and the maintenance cover plate 2, and an inner pad 16 is attached to the inner wall of the air chamber 1 and the maintenance cover plate 2. The outer pad 7 is made of thermal insulation cotton, and the inner pad 16 is made of anti-corrosion coating material. The inner pad 16 and the outer pad 7 are sandwiched inside and outside the air chamber 1 and the maintenance cover plate 2, so that the outer pad 7 and the inner pad 16 can effectively wrap and protect against corrosion, making it safer to use.

[0021] The inner wall of the air chamber 1 is fixedly connected to the two sides and the middle position of the splicing slot 15, and the fine filter layer 9, the intermediate filter layer 12 and the coarse filter layer 14 are respectively inserted and installed in the middle of the splicing slot 15. The fine filter layer 9 is made of porous ceramic material, the intermediate filter layer 12 is a dual-layer structure of electrostatic adsorption and chemical adsorption, and the coarse filter layer 14 is a composite structure of metal wire mesh and porous foam metal. The coarse filter layer 14, the intermediate filter layer 12 and the fine filter layer 9 are installed in parallel with the air chamber 1 through the splicing slot 15. The splicing slot 15 is a funnel structure. This allows the device to perform efficient filtration through the fine filter layer 9, the intermediate filter layer 12 and the coarse filter layer 14, and it is also convenient for positioning, insertion and disassembly, and replacement of protective measures.

[0022] An automatic valve 13 is installed at the bottom edge of the outer wall of the air chamber 1, and a sewage pipe 6 is installed at the lower end of the automatic valve 13. The sewage pipe 6 is electrically connected to the air chamber 1 through the automatic valve 13, and the air chamber 1 is vibratedly connected to the sewage pipe 6 through the vibrating motor 5. This allows the sewage pipe 6 to automatically open and close for sewage discharge, and the material can be discharged by vibration through the vibrating motor 5, which is convenient to use.

[0023] A pressure sensor 10 is inserted and installed on the other edge of the bottom of the outer wall of the gas chamber 1, and a flow sensor 11 is distributed on one side of the pressure sensor 10. The pressure sensor 10 and the flow sensor 11 are two integrated structures, and the pressure sensor 10 and the flow sensor 11 are inserted and installed through the gas chamber 1. This makes it convenient for the pressure sensor 10 and the flow sensor 11 to monitor the gas in real time, and the effect of use is better.

[0024] Working Principle: When using this precision gas filter, first assemble the device with the pipeline, then connect the device to the power supply, and then allow air to enter through the inlet pipe 3. The air then passes through the coarse filter layer 14, which uses a composite structure of high-strength metal wire mesh and porous foam metal. The metal wire mesh intercepts larger particles, while the porous foam metal further captures smaller particles, improving the initial filtration effect. The electrostatic adsorption filter layer 12 is made of electrostatically charged fiber felt material, which can adsorb charged microparticles and some aerosols in the gas, reducing the burden on subsequent filtration. The chemical adsorption filter layer 12 is filled with specially formulated adsorbent particles that can react with specific harmful chemical components in the gas. The gas filter undergoes a chemical reaction to remove impurities. The fine filter layer 9 is a nano-porous ceramic filter membrane with a special hydrophobic treatment on its surface, which can effectively filter nano-sized particles and molecular-level impurities in the gas, achieving high-precision gas filtration. Then, the gas is monitored by the pressure sensor 10 and the flow sensor 11. When it is necessary to clean impurities, the automatic valve 13 can be opened automatically, and then the vibration motor 5 drives the gas chamber 1 to vibrate, discharging the impurities through the drain pipe 6. When it is necessary to replace the fine filter layer 9, the intermediate filter layer 12, and the coarse filter layer 14, the maintenance cover 2 can be flipped open, and the replacement can be performed by positioning and disassembly through the splicing slot 15. This is the usage process of this precision gas filter.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A precision gas filter, comprising a gas chamber (1), wherein one end of the gas chamber (1) is connected to an inlet pipe (3) and the other end of the gas chamber (1) is connected to an outlet pipe (4), characterized in that: A vibration motor (5) is installed on the front edge of the air chamber (1), and a connecting hinge (8) is installed on the upper front end of the air chamber (1). A maintenance cover (2) is installed on the other side of the connecting hinge (8). A locking knob (17) is inserted through the lower front end of the maintenance cover (2) and the lower front end of the air chamber (1). An outer pad (7) is attached to the outer wall of the air chamber (1) and the maintenance cover (2), and an inner pad (16) is attached to the inner wall of the air chamber (1). The inner wall is fixedly connected to the two sides and the middle position of the splicing slot (15), and the fine filter layer (9), the intermediate filter layer (12) and the coarse filter layer (14) are respectively inserted and installed in the middle of the splicing slot (15). The bottom edge of the outer wall of the air chamber (1) is connected to the automatic valve (13), and the lower end of the automatic valve (13) is connected to the sewage pipe (6). The other edge of the bottom of the outer wall of the air chamber (1) is connected to the pressure sensor (10), and the flow sensor (11) is distributed on one side of the pressure sensor (10).

2. A precision gas filter according to claim 1, characterized in that: The maintenance cover (2) is connected to the air chamber (1) by a hinge (8) to open and close in a flip-down manner, and the maintenance cover (2) is fixedly connected to the air chamber (1) by a locking knob (17). The maintenance cover (2) has a semi-circular structure.

3. A precision gas filter according to claim 2, characterized in that: The sewage pipe (6) is electrically connected to the air chamber (1) via an automatic valve (13), and the air chamber (1) is connected to the sewage pipe (6) via a vibration motor (5).

4. A precision gas filter according to claim 3, characterized in that: The outer pad (7) is made of thermal insulation cotton, and the inner pad (16) is made of anti-corrosion coating material. The inner pad (16) and the outer pad (7) are sandwiched inside and outside the air chamber (1) and the maintenance cover plate (2).

5. A precision gas filter according to claim 4, characterized in that: The fine filter layer (9) is made of porous ceramic material, the intermediate filter layer (12) is a dual-layer structure of electrostatic adsorption and chemical adsorption, the coarse filter layer (14) is a composite structure of metal wire mesh and porous foam metal, and the coarse filter layer (14), the intermediate filter layer (12) and the fine filter layer (9) are installed in parallel with the gas chamber (1) through splicing slots (15), and the splicing slots (15) are funnel structures.

6. A precision gas filter according to claim 5, characterized in that: The pressure sensor (10) and flow sensor (11) are two integrated structures, and the pressure sensor (10) and flow sensor (11) are installed in a through-hole connection with the air chamber (1).

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