A small gas filter

Abstract

The present invention relates to the technical field of gas water-blocking filtration, and specifically, to a small gas filter. It includes a water-blocking filter element body, the water-blocking filter element body includes a disc-shaped wheel, a disc chamber is opened inside the disc-shaped wheel, a filter core for water-blocking filtration of gas is installed inside the disc chamber, connection ports are opened at both the upper and lower ends of the disc-shaped wheel, gas transmission mechanisms for gas transmission are installed on both the upper and lower sides of the disc-shaped wheel, the gas transmission mechanism includes a first transmission pipe, a second transmission pipe and an installation component, and the installation component can assist in installing the first transmission pipe and the second transmission pipe into the connection ports of the disc-shaped wheel. By using the internal structures of the first filter pipe body and the second filter pipe body, the present invention can directly heat or cool the gas. In this way, the water-blocking filter element body can maintain a miniaturized structure, which is more suitable for precision experimental equipment or small production devices with limited space.

Description

Technical Field

[0001] The present invention relates to the technical field of gas water-blocking filtration, and specifically, to a small gas filter. Background Art

[0002] In some precision experiments, such as experiments on items like electronic components and optical lenses, small airflows are often required for cooling or drying. These items are extremely sensitive to moisture, and once they come into contact with moisture, their performance may be damaged or even destroyed. Therefore, before cooling or drying, the airflows need to be filtered for moisture. Since the experimental equipment has high precision requirements for gas blowing and is usually small in size, a small gas water-blocking filter needs to be used for gas filtration;

[0003] The working principle of a small gas water-blocking filter mainly relies on a special filter membrane or filter chamber structure to achieve the purpose of blocking water from passing through while allowing gas to pass through smoothly. When filtering cold air, due to the relatively low temperature, if the moisture on the filter membrane or in the filter chamber solidifies, this will not only affect the gas filtration effect but also may cause the filter to become blocked, thereby affecting the normal progress of the experiment. When filtering hot air, the relatively high temperature weakens the intermolecular forces inside the filter mesh material, making the mesh structure of the filter become loose, the holes become larger, reducing the filtration precision, and causing moisture to pass through the filter together with the gas, thus damaging the experimental items;

[0004] In view of this, we propose a small gas filter. Summary of the Invention

[0005] The purpose of the present invention is to provide a small gas filter to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides a small gas filter, including a water-blocking filter element body. The water-blocking filter element body includes a disc-shaped wheel. A disc chamber is opened inside the disc-shaped wheel. A filter core for water-blocking filtration of gas is installed inside the disc chamber. Connecting ports are opened at both the upper and lower ends of the disc-shaped wheel. The lower connecting port is an air inlet port, and the upper connecting port is an air outlet port;

[0007] Gas delivery mechanisms for delivering gas are installed on both the upper and lower sides of the disc-shaped wheel. The gas delivery mechanisms include a first delivery pipe, a second delivery pipe, and an installation assembly. The installation assembly can assist in installing the first delivery pipe and the second delivery pipe inside the connecting ports of the disc-shaped wheel;

[0008] When the gas to be filtered is cold air, the first delivery pipe is installed inside the air inlet port, and the second delivery pipe is installed inside the air outlet port, which can heat up and filter the cold air to be filtered, and then transport and cool down the heated cold air. When the gas to be filtered is hot air, the first delivery pipe and the second delivery pipe change positions, which can cool down and filter the hot air, and then heat it up and output it.

[0009] As a further improvement of this technical solution, the first delivery pipe includes a filter pipe body one that can be inserted into the connection port. Fine-diameter pipes are provided inside both the upper and lower ends of the filter pipe body one. A spiral member is installed in the middle of the filter pipe body one, and a spiral channel is formed between the spiral member and the filter pipe body one. A partition layer is provided inside the inner wall of the filter pipe body one close to the spiral channel, and the partition layer is used to insulate the spiral channel.

[0010] As a further improvement of this technical solution, the second delivery pipe includes a filter pipe body two that is symmetrically installed with the filter pipe body one. Flared openings are provided at both the upper and lower ends of the filter pipe body two. A plurality of fins are fixedly connected inside the filter pipe body two, and a curved channel is formed between the plurality of fins. The fins in the middle extend out of the surface of the filter pipe body two.

[0011] As a further improvement of this technical solution, the installation component includes two strip-shaped sleeves fixedly connected to the upper and lower ends of the disc-shaped wheel, and both strip-shaped sleeves are located outside the connection port. Internal thread grooves are provided on the inner walls of both strip-shaped sleeves. Threaded rings are fixedly connected to the surfaces of one ends of the filter pipe body one and the filter pipe body two respectively, and the threaded rings can drive the filter pipe body one and the filter pipe body two to be movably and sealingly connected inside the two strip-shaped sleeves respectively.

[0012] As a further improvement of this technical solution, the internal structures of the filter pipe body one and the filter pipe body two are both symmetrically arranged, which is used to assist the filter pipe body one and the filter pipe body two for two-way use.

[0013] As a further improvement of this technical solution, an inlet is provided on one side of the filter element close to the air inlet port. An extension wall is fixedly connected to the bottom of the inner cavity of the disc bin. The lower connection port is located in the middle of the extension wall. The inner diameter of the inlet is larger than the inner diameter of the extension wall, and a storage groove is formed between the extension wall and the disc bin.

[0014] As a further improvement of this technical solution, temperature-absorbing members are provided on the surfaces of the plurality of fins located inside the filter pipe body two, and the temperature-absorbing members adopt a spraying process.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. In this small gas filter, when the low-temperature gas enters the inside of the disc wheel through the first filter tube body for filtration, it is heated in combination with the internal structure of the first filter tube body. In this way, the gas with a relatively low temperature entering the disc bin can reach a temperature close to normal temperature, reducing the damage to the filter element caused by the gas with a relatively low temperature. After filtration, the gas is output from the inside of the second filter tube body. During the output process, the internal structure of the second filter tube body can cool the gas, without affecting the subsequent use of the gas;

[0017] 2. In this small gas filter, if the gas to be filtered is the gas used in the drying operation, the second filter tube body can be used to input the gas. The internal structure of the second filter tube body can cool the gas during the transportation process, so that the gas entering the disc bin drops to a temperature close to normal temperature. After filtration, the gas is output through the first filter tube body. During the output process, not only the gas is heated, but also the moisture in the gas can be further dried, effectively improving the dryness and temperature stability of the gas, and providing better gas conditions for the drying operation;

[0018] 3. In this small gas filter, by using the internal structures of the first filter tube body and the second filter tube body, the gas can be directly heated or cooled. In this way, the water-blocking filter element body can maintain a small structure, which is more suitable for precision experimental equipment or small production devices with limited space. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the overall structural schematic diagram of the present invention;

[0020] Figure 2 is the split structural schematic diagram of the gas transmission mechanism of the present invention;

[0021] Figure 3 is the schematic diagram of the transposition structure of the first delivery pipe and the second delivery pipe of the present invention;

[0022] Figure 4 is of the present invention Figure 3 schematic diagram of the structure at A;

[0023] Figure 5 is of the present invention Figure 3 schematic diagram of the structure at B;

[0024] Figure 6 is the schematic diagram of the first filter tube body of the present invention;

[0025] Figure 7 is the schematic diagram of the second filter tube body of the present invention.

[0026] The meanings of the various reference numerals in the figure are as follows:

[0027] 1. Water-blocking filter element body; 11. Disc wheel; 12. Disc bin; 13. Filter core; 14. Connection port;

[0028] 2. Gas delivery mechanism; 21. First delivery pipe; 22. Second delivery pipe; 23. Installation assembly;

[0029] 211. Filter pipe body one; 212. Fine-diameter pipe; 213. Spiral part; 214. Spiral channel; 215. Partition layer;

[0030] 221. Filter pipe body two; 222. Flared opening; 223. Fins; 224. Curved channel;

[0031] 231. Threaded ring; 232. Sleeve strip; 233. Internal thread groove;

[0032] 3. Lead-in port; 31. Extension wall; 32. Storage tank;

[0033] 4. Moisture-absorbing part. Specific embodiments

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0035] Embodiment 1, please refer to Figures 1-2 As shown, the purpose of this embodiment is to provide a small gas filter, including a water-blocking filter element body 1. The water-blocking filter element body 1 includes a disc wheel 11. A disc bin 12 is provided inside the disc wheel 11. A filter core 13 for water-blocking filtration of gas is installed inside the disc bin 12. Connection ports 14 are provided at both the upper and lower ends of the disc wheel 11. The lower connection port 14 is an air inlet port, and the upper connection port 14 is an air outlet port; Gas delivery mechanisms 2 for delivering gas are installed on both the upper and lower sides of the disc wheel 11. The gas delivery mechanism 2 includes a first delivery pipe 21, a second delivery pipe 22, and an installation assembly 23. The installation assembly 23 can assist in installing the first delivery pipe 21 and the second delivery pipe 22 inside the connection port 14 of the disc wheel 11;

[0036] When the gas to be filtered is cold air, the first delivery pipe 21 is installed in the air inlet port, and the second delivery pipe 22 is installed inside the air outlet port, which can heat and filter the cold air to be filtered, and then deliver and cool the heated cold air. When the gas to be filtered is hot air, the first delivery pipe 21 and the second delivery pipe 22 change positions, which can cool and filter the hot air, and then heat and output it.

[0037] If the temperature of the gas to be transported is relatively low, the temperature of the gas can be increased through the first delivery pipe 21. The first delivery pipe 21 includes a first filter pipe body 211 that can be inserted into the connection port 14. Fine-diameter pipes 212 are provided inside both the upper and lower ends of the first filter pipe body 211. A spiral member 213 is installed in the middle of the first filter pipe body 211. A spiral channel 214 is formed between the spiral member 213 and the first filter pipe body 211. An insulating layer 215 is provided inside the inner wall of the first filter pipe body 211 near the spiral channel 214 for insulating the spiral channel 214.

[0038] Refer to Figure 6 As shown, fine-diameter pipes 212 are provided at both ends inside the first filter pipe body 211, and between the two fine-diameter pipes 212 is the spiral channel 214 formed by the spiral member 213 and the inner wall of the first filter pipe body 211. When the gas enters the first filter pipe body 211 for transportation, the air flow will pass through the fine-diameter pipe 212, the spiral channel 214, and the fine-diameter pipe 212 in sequence. When the gas passes through the fine-diameter pipe 212, due to the reduction in the flow area, according to the continuity principle of fluid mechanics, the gas flow rate increases. Subsequently, according to Bernoulli's principle, the increase in flow rate causes the pressure to decrease, and the decrease in pressure causes the temperature of the gas to drop. Then, the gas enters the spiral channel 214, where the gas flow will rub against the inner wall of the pipe, generating heat and thus increasing the gas temperature. Finally, the gas passes through the fine-diameter pipe 212 again, enabling the gas to be compressed again. At the same time, combined with the insulating layer 215 structure on the inner wall of the spiral channel 214, the effect of heat insulation is achieved, which can further increase the gas temperature, so that the gas transported out of the first filter pipe body 211 can be heated.

[0039] If the temperature of the gas to be transported is relatively high, the second delivery pipe 22 can be used to assist in cooling the gas. The second delivery pipe 22 includes a second filter pipe body 221 that is symmetrically installed with the first filter pipe body 211. Flared openings 222 are provided at both the upper and lower ends of the second filter pipe body 221. A plurality of fins 223 are fixedly connected inside the second filter pipe body 221, and a curved channel 224 is formed between the plurality of fins 223. The fins 223 in the middle extend out of the surface of the second filter pipe body 221.

[0040] Combined with Figure 7As shown, a plurality of fins 223 are installed inside the second filter pipe body 221. These fins 223 and the inner wall of the second filter pipe body 221 together form a curved channel 224. When the gas passes through the second filter pipe body 221, the curved channel 224 greatly increases the path length of the gas flow. When the gas flows in the curved channel 224, the residence time increases, which allows the gas to have more time to exchange heat with the pipe and the fins 223. At the same time, the curved channel 224 also increases the contact area between the gas and the pipe and the fins 223, further promoting the heat exchange. Among them, the fins 223 in the middle extend out of the surface of the second filter pipe body 221, and the heat can be quickly transferred to the surrounding environment through the fins 223, thereby reducing the temperature of the gas. In addition, after the fins 223 extend out of the pipe surface, the natural convection of the surrounding air can be used to enhance the heat dissipation effect and accelerate the cooling process of the gas.

[0041] Regarding the above-mentioned fins 223, since they are installed in the small water-blocking filter element body 1, lightweight materials need to be used. Therefore, graphite composite materials can be selected for the fins 223. Graphite composite materials are usually composed of graphite and other polymer materials, with lower density and weight, being more lightweight and more suitable for the small-sized water-blocking filter element body 1. At the same time, by combining the high thermal conductivity of graphite with the characteristics of other materials, graphite composite materials can achieve an efficient heat dissipation effect. The heat in the gas can be quickly transferred to the graphite composite fins 223 and then dissipated through the surface of the fins 223 to achieve a good heat dissipation effect.

[0042] It should be noted that the fins 223 inside the second filter pipe body 221 can extend out of its surface. In contrast, the surface of the first filter pipe body 211 is a smooth structure. For this reason, these fins 223 extending out of the surface of the second filter pipe body 221 can also play a role in distinguishing the first filter pipe body 211 and the second filter pipe body 221.

[0043] Among them, Figure 6 and Figure 7 The dotted arrows in both indicate the flow direction of the air flow when passing through the pipe.

[0044] The water-blocking filter element body 1 can perform water-vapor separation on gases at different temperatures. For different temperatures, the positions of the first delivery pipe 21 and the second delivery pipe 22 need to be changed. In view of this, combined with Figure 5The specific structure of the installation component 23 is disclosed. The installation component 23 includes two strip-shaped members 232 fixedly connected to the upper and lower ends of the disc wheel 11, and both strip-shaped members 232 are located outside the connection port 14. Internal thread grooves 233 are provided on the inner walls of both strip-shaped members 232. Threaded rings 231 are fixedly connected to the surfaces of one ends of the first filter tube body 211 and the second filter tube body 221 respectively. The threaded rings 231 can drive the first filter tube body 211 and the second filter tube body 221 to be movably and sealingly connected inside the two strip-shaped members 232 respectively.

[0045] Threaded rings 231 are firmly connected to the surfaces of one ends of the first filter tube body 211 and the second filter tube body 221 respectively. Internal thread grooves 233 are provided inside the strip-shaped members 232 installed on the outer wall of the disc wheel 11. The surfaces of the internal thread grooves 233 and the threaded rings 231 can be closely fitted. It should be particularly noted that the two strip-shaped members 232 and their corresponding two internal thread grooves 233 are exactly the same, and the threaded rings 231 provided on the surfaces of the first filter tube body 211 and the second filter tube body 221 are also exactly the same in terms of pitch and thread specifications, etc. It can be clearly seen from Figure 2 this that both the first filter tube body 211 and the second filter tube body 221 can be separated from the disc wheel 11, so that the first filter tube body 211 and the second filter tube body 221 can be disassembled and transposed;

[0046] When the gas that needs to be water-blocked and filtered is subsequently used for cooling work, the first filter tube body 211 is threadedly and sealingly installed at the air inlet port of the disc wheel 11, and the second filter tube body 221 is threadedly and sealingly installed at the air outlet port of the disc wheel 11. According to the above content, it can be known that when the first filter tube body 211 conveys gas, it can perform a heating operation on the gas, while when the second filter tube body 221 conveys gas, it can perform a cooling operation on the gas. Therefore, when the gas with a relatively low temperature needs to be water-blocked and filtered, the first filter tube body 211 is first used to heat the gas, so that when the gas enters the disc bin 12, it is in a state close to the temperature of the normal-temperature gas, and will not cool and solidify the water droplets that have been blocked in the disc bin 12, thereby achieving the effect of improving the filtering effect. After the gas is filtered, it will be drawn out from the upper connection port 14. The second filter tube body 221 installed inside the upper connection port 14 can absorb and cool the temperature of the gas, making the temperature of the conveyed gas more suitable for subsequent cooling work.

[0047] It should be noted that: the openings of the first filter tube body 211 and the second filter tube body 221 near the threaded rings 231 are smaller than their respective middle inner diameters. By feeding through a relatively thin pipe inner diameter, sufficient time can be reserved for the filtering of the gas in the disc bin 12, thereby ensuring that the gas is filtered more fully.

[0048] Since the main body 1 of the water-blocking filter element can change the conveying pipeline according to the filtered gas, the pipeline needs to be designed with two-way passages to ensure that the same effect can be achieved in different orientations. Therefore, the internal structures of the first filter pipe body 211 and the second filter pipe body 221 are symmetrically arranged to assist the first filter pipe body 211 and the second filter pipe body 221 in two-way use.

[0049] The improvement lies in: Referring to Figure 3 As shown, the internal structures of the first filter pipe body 211 and the second filter pipe body 221 are symmetrically arranged. The symmetrical structure makes the fluid flow characteristics of the first filter pipe body 211 and the second filter pipe body 221 basically the same in two directions. No matter which direction the gas enters the first filter pipe body 211 or the second filter pipe body 221, it can experience similar heating and cooling processes. The symmetrical structure can assist the filter pipe in two-way use, improving the versatility, interchangeability and working efficiency of the filter system.

[0050] When the filter element 13 filters the gas, it can block the moisture in the gas. Considering the storage of moisture in the disk bin 12, an inlet 3 is provided on one side of the filter element 13 close to the air inlet port. A extending wall 31 is fixedly connected to the bottom of the inner cavity of the disk bin 12. The lower connection port 14 is located in the middle of the extending wall 31. The inner diameter of the inlet 3 is larger than the inner diameter of the extending wall 31. A storage tank 32 is formed between the extending wall 31 and the disk bin 12.

[0051] The improvement lies in: Referring to Figure 4 As shown, when the filter element 13 blocks moisture, the separated moisture can be blocked on the side of the filter element 13 close to the water inlet port. Through the inlet 3 opened in the middle of the filter element 13, the water droplets in the middle of the filter element 13 can be led to the edge of the filter element 13, reducing the situation where water droplets drip to the air inlet port. Since the inner diameter of the inlet 3 is larger than the inner diameter of the extending wall 31, combined with Figure 5 As shown, the moisture can drip smoothly from the edge of the filter element 13 into the storage tank 32 for temporary storage, reducing the influence of the random flow of moisture in the disk bin 12 on the gas filtration effect.

[0052] When the water-blocking filter element main body 1 stops being used, disassemble the pipeline at the air inlet port and shake the disk wheel 11, then the water stored in the storage tank 32 can be discharged from the air inlet port.

[0053] Among them, Figure 4 the hollow arrows indicate the flow and dripping direction of water droplets, and the solid arrows indicate the flow direction of the gas during filtration; Figure 5 the arc in the storage tank 32 in Figure 5 indicates the state of the stored liquid, and the solid arrow in

[0054] Considering the cooling effect on the gas when the gas is transported inside the second filter pipe body 221, temperature-absorbing members 4 are provided on the surfaces of multiple fins 223 located inside the second filter pipe body 221, and the temperature-absorbing members 4 adopt a spraying process.

[0055] The improvement lies in: Combining Figure 7 As shown, temperature-absorbing members 4 are laid on the surfaces of multiple fins 223 inside the second filter pipe body 221. The temperature-absorbing members 4 can be selected as carbon nanotube coatings. Carbon nanotubes have excellent thermal conductivity and can quickly absorb heat. Making the carbon nanotubes into a coating and spraying it on the surface of the graphite composite fins 223 can effectively adsorb the heat in the normal-temperature gas, and the weight of the carbon nanotube coating is relatively light. While ensuring the heat absorption effect, it will not bring too much burden to the fins 223. At the same time, the temperature-absorbing members 4 can also protect the fins 223, reduce the friction between the gas and the fins 223, and extend the service life of the fins 223.

[0056] In summary, the working principle of this solution is as follows: When the water-blocking filter element body 1 is in use, pumps are required at both ends to use gas as the driving force (using existing technology, which will not be elaborated here). For the first filter pipe body 211 connected to the disc wheel 11, thin-diameter pipes 212 are provided at both ends inside it, and between the two thin-diameter pipes 212 is a spiral channel 214 formed by a spiral member 213 and the inner wall of the first filter pipe body 211. When the gas enters the first filter pipe body 211 for transportation, the air flow will pass through the thin-diameter pipe 212, the spiral channel 214, and the thin-diameter pipe 212 in sequence. When the gas passes through the thin-diameter pipe 212, due to the reduction of the flow area, according to the continuity principle of fluid mechanics, the gas flow rate increases. Subsequently, according to Bernoulli's principle, the increase in flow rate will cause the pressure to decrease, and the decrease in pressure causes the temperature of the gas to drop. Then, the gas enters the spiral channel 214. In the spiral channel 214, the gas flow will rub against the inner wall of the pipe, generating heat and thus increasing the temperature of the gas. Finally, the gas passes through the thin-diameter pipe 212 again, enabling the gas to be compressed again. At the same time, combined with the structure of the interlayer 215 on the inner wall of the spiral channel 214, it has a heat preservation effect and can further increase the temperature of the gas, so that the gas transported out of the first filter pipe body 211 can perform a heating operation;

[0057] The second filter pipe body 221 connected to the other end of the disc wheel 11 is internally provided with a plurality of fins 223. These fins 223 and the inner wall of the second filter pipe body 221 together form a curved channel 224. When the gas passes through the second filter pipe body 221, the curved channel 224 greatly increases the path length of the gas flow. When the gas flows in the curved channel 224, the residence time increases, which enables the gas to have more time to exchange heat with the pipe and the fins 223. At the same time, the curved channel 224 also increases the contact area between the gas and the pipe and the fins 223, further promoting the heat exchange. Among them, the fins 223 in the middle extend out of the surface of the second filter pipe body 221, and the heat can be quickly transferred to the surrounding environment through the fins 223, thereby reducing the temperature of the gas. In addition, after the fins 223 extend out of the pipe surface, the natural convection of the surrounding air can be used to enhance the heat dissipation effect and accelerate the gas cooling process;

[0058] When the gas that needs to be water-blocked and filtered is subsequently used for cooling work, the first filter pipe body 211 is thread-sealed and installed at the air inlet port of the disc wheel 11, and the second filter pipe body 221 is thread-sealed and installed at the air outlet port of the disc wheel 11. According to the above content, it can be known that when the first filter pipe body 211 conveys the gas, it can perform a heating operation on the gas, while when the second filter pipe body 221 conveys the gas, it can perform a cooling operation on the gas. Therefore, when the gas with a relatively low temperature needs to be water-blocked and filtered, the first filter pipe body 211 is first used to heat the gas so that when the gas enters the disc bin 12, it is in a state close to the temperature of the normal-temperature gas, and the water droplets that have been blocked in the disc bin 12 will not be cooled and solidified, thereby achieving the effect of improving the filtering effect. After the gas is filtered, it will be drawn out from the upper connection port 14. The second filter pipe body 221 installed inside the upper connection port 14 can absorb and cool the temperature of the gas, making the temperature of the conveyed gas more suitable for subsequent cooling work.

[0059] Embodiment 2, different from the above Embodiment 1, when the water-blocking filter element body 1 is in use, a suction pump is required at both ends as the gas driving force (using the prior art, which will not be elaborated here). When the gas that needs to be water-blocked and filtered is subsequently used for drying work, the gas that needs to be water-blocked and filtered is in a relatively high-temperature state. At this time, the second filter pipe body 221 is threadedly and hermetically installed at the air inlet port of the disc wheel 11, and the first filter pipe body 211 is threadedly and hermetically installed at the air outlet port of the disc wheel 11. Similarly, according to the above content, it can be known that the first filter pipe body 211 can perform a temperature-raising operation on the gas when transporting the gas, while the second filter pipe body 221 can perform a temperature-lowering treatment on the gas when transporting the gas. Therefore, when transporting and filtering the hot gas, the second filter pipe body 221 is first used to cool the gas, so that when the filter element 13 filters the gas, the aperture will not become larger due to heat. After the gas is filtered and output by the first filter pipe body 211, the first filter pipe body 211 can raise the temperature of the gas. On the one hand, it can make the output gas more suitable for subsequent drying work. On the other hand, the filtered gas is heated again, and the moisture in the gas can be dried again;

[0060] A heat-conducting layer (ceramic material can be selected, and the heat-conducting layer is relatively thin and will not affect the overall weight of the water-blocking filter element body 1) is provided inside one end of the second filter pipe body 221 close to the threaded ring 231. When filtering the gas with a relatively high temperature, the second filter pipe body 221 is installed at the air inlet port of the disc wheel 11. At this time, the bottom of the storage tank 32 is in contact with the top of the second filter pipe body 221, which can further perform water-cooling on the second filter pipe body 221. If the pipe installed in the air inlet port is the first filter pipe body 211, since the end of the first filter pipe body 211 is a thin-diameter pipe 212 with a relatively thick pipe wall, it will not affect the temperature-raising effect inside the first filter pipe body 211.

[0061] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only the preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A small gas filter, comprising a water-blocking filter element body (1), characterized in that: The water-blocking filter element body (1) includes a disc-shaped wheel (11). A disc chamber (12) is provided inside the disc-shaped wheel (11). A filter element (13) for water-blocking filtration of gas is installed inside the disc chamber (12). Connection ports (14) are provided at both the upper and lower ends of the disc-shaped wheel (11). The lower connection port (14) is an air inlet port, and the upper connection port (14) is an air outlet port; Gas transmission mechanisms (2) for gas transmission are installed on both the upper and lower sides of the disc-shaped wheel (11). The gas transmission mechanism (2) includes a first transmission pipe (21), a second transmission pipe (22), and an installation assembly (23). The installation assembly (23) can assist in installing the first transmission pipe (21) and the second transmission pipe (22) into the connection port (14) of the disc-shaped wheel (11); when the gas to be filtered is cold air, the first transmission pipe (21) is installed in the air inlet port, and the second transmission pipe (22) is installed inside the air outlet port, capable of heating and filtering the cold air to be filtered and then transporting and cooling the heated cold air. When the gas to be filtered is hot air, the first transmission pipe (21) and the second transmission pipe (22) change positions, capable of cooling and filtering the hot air and then heating and outputting it; The first transmission pipe (21) includes a first filter pipe body (211) that can be inserted into the connection port (14). A spiral member (213) is installed in the middle of the first filter pipe body (211). A spiral channel (214) is formed between the spiral member (213) and the first filter pipe body (211). The second transmission pipe (22) includes a second filter pipe body (221) symmetrically installed with the first filter pipe body (211). A plurality of fins (223) are fixedly connected inside the second filter pipe body (221). A curved channel (224) is formed between the plurality of fins (223); Fine-diameter pipes (212) are provided inside both the upper and lower ends of the first filter pipe body (211). A partition layer (215) is provided inside the inner wall of the first filter pipe body (211) near the spiral channel (214). The partition layer (215) is used for heat preservation of the spiral channel (214); The internal structures of the first filter pipe body (211) and the second filter pipe body (221) are both symmetrically arranged to assist in the two-way use of the first filter pipe body (211) and the second filter pipe body (221).

2. The small gas filter according to claim 1, wherein: Flared openings (222) are provided at both the upper and lower ends of the second filter pipe body (221). The fins (223) in the middle extend out of the surface of the second filter pipe body (221).

3. The small gas filter according to claim 2, wherein: The installation component (23) includes two strip sleeves (232) fixedly connected to the upper and lower ends of the disc wheel (11), and both strip sleeves (232) are located outside the connection port (14). Inner thread grooves (233) are provided on the inner walls of both strip sleeves (232). Threaded rings (231) are fixedly connected to the surfaces of one ends of the first filter tube body (211) and the second filter tube body (221). The threaded rings (231) can drive the first filter tube body (211) and the second filter tube body (221) to be movably and sealingly connected to the interiors of the two strip sleeves (232) respectively.

4. The small gas filter according to claim 1, wherein: An induction port (3) is provided on one side of the filter element (13) close to the air inlet port. An extension wall (31) is fixedly connected to the bottom of the inner cavity of the disc bin (12). The lower connection port (14) is located in the middle of the extension wall (31). The inner diameter of the induction port (3) is larger than the inner diameter of the extension wall (31). A storage groove (32) is formed between the extension wall (31) and the disc bin (12).

5. The small gas filter according to claim 2, characterized in that: Temperature absorption elements (4) are provided on the surfaces of multiple fins (223) located inside the second filter tube body (221). The temperature absorption elements (4) adopt a spraying process.

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