An instrument air purifying device

Abstract

This utility model relates to the field of purification technology, and provides an instrument air purification device including a purification tank with an installation plate on its side wall. The utility model uses a filter purification assembly installed inside the purification tank, with a linkage installation assembly positioned between the purification tank and the installation plate. The filter purification assembly includes a filter tube, which is located inside the purification tank. An air inlet is located at the upper end of the purification tank, and the filter tube is connected to the air inlet. A flow-diverting spiral vane is installed inside the filter tube, and a connecting column is also installed inside the filter tube, with one end of the connecting column extending out of the filter tube. This solves the technical problem in the prior art where contaminants such as moisture, oil mist, and solid particles in the instrument air directly cause pneumatic components to jam, wear, and corrode, leading to decreased control accuracy, equipment failure, and even production safety accidents.

Description

Technical Field

[0001] This utility model relates to the field of purification technology, specifically to an instrument air purification device. Background Technology

[0002] Instrument air (also known as instrument air) is a widely used power source and control medium in industrial production. It is mainly used for driving and transmitting signals of pneumatic instruments (such as pressure gauges, flow meters, and control valves), pneumatic actuators (such as cylinders and pneumatic valves), and automated control systems. Its core requirements are cleanliness, dryness, and oil-free. If instrument air contains pollutants such as moisture, oil mist, and solid particles, it will directly cause pneumatic components to jam, wear, and corrode, leading to decreased control accuracy, equipment failure, or even production safety accidents (such as process runaway caused by control valve failure in chemical processes). Therefore, the purification of instrument air is a key link in the stable operation of industrial automation systems.

[0003] Traditional instrument air purification devices can no longer meet the modern industrial demand for "high efficiency, reliability, easy maintenance, and high adaptability." There is an urgent need to solve the core technical pain points such as airflow distribution, installation and maintenance, and sealing stability through structural innovation. The instrument air purification device proposed in this application is based on this background and achieves the optimization and upgrading of traditional solutions through the collaborative design of filter purification components and linkage installation components. Utility Model Content

[0004] To overcome the above-mentioned defects, the embodiments of this utility model solve the technical problem in the prior art that if the instrument air contains pollutants such as moisture, oil mist, and solid particles, it will directly lead to the jamming, wear, and corrosion of pneumatic components, resulting in a decrease in control accuracy, equipment failure, or even production safety accidents.

[0005] According to one aspect, at least one embodiment of the present invention provides an instrument air purification device, including... A purification tank, wherein an installation plate is provided on the side wall of the purification tank; A filtration and purification assembly is disposed inside the purification tank; A linkage installation assembly is disposed between the purification tank and the installation plate; The filtration and purification assembly includes a filter tube; The filter tube is disposed inside the purification tank. An air inlet is provided at the upper end of the purification tank. The filter tube is connected to the air inlet. A flow-dividing spiral blade is disposed inside the filter tube. A connecting post is disposed inside the filter tube, and one end of the connecting post extends out of the filter tube.

[0006] For example, the filtration and purification assembly provided in at least one embodiment of this utility model also includes a support frame; The support frame is disposed on the inner bottom surface of the purification tank. A support plate is disposed at the upper end of the support frame. The support plate is fixedly mounted on the connecting column. An air outlet is disposed at the lower end of the purification tank. One end of the connecting column extends out of the air outlet.

[0007] According to another aspect, at least one embodiment of the present invention also provides a linkage mounting assembly, including a connecting sleeve; The connecting sleeve is disposed on the outer side wall of the purification tank. The side wall of the connecting sleeve is provided with a mounting frame. The mounting frame has a linkage groove. The inside of the linkage groove is provided with a linkage shaft. The linkage sleeve is fitted on the linkage shaft. The outer side wall of the linkage sleeve is provided with a linkage frame. The linkage frame is fixedly connected to the mounting plate.

[0008] For example, the linkage mounting assembly provided in at least one embodiment of this utility model further includes a limiting cavity; The limiting cavity is opened on the linkage sleeve, and a linkage slide is provided at one end of the linkage frame. The linkage slide and the linkage frame are movably fitted together, and the inner side of the linkage slide is embedded in the interior of the limiting cavity.

[0009] As a further technical solution, both the upper and lower ends of the purification tank are provided with insertion short pipes, the inner sidewall of the insertion short pipe is provided with an extension ring, and the inner sidewall of the extension ring is provided with a sealing arc surface.

[0010] As a further technical solution, bolt mounting holes are provided at the four corners of the side wall of the mounting plate, and the bolt mounting holes are circular groove-shaped structures.

[0011] As a further technical solution, a limiting ring is provided on the outer wall of the purification tank. The limiting ring is located at the upper and lower ends of the connecting sleeve, and the contact area between the limiting ring and the connecting sleeve is lubricated.

[0012] As a further technical solution, both the purification tank and the filter tube are cylindrical structures, and the purification tank and the filter tube are sealed together.

[0013] The beneficial effects of this utility model are as follows: In this invention, the flow-diverting spiral vanes inside the filter tube guide the instrument airflow along a spiral path, which not only prolongs the residence time of the gas in the filter tube but also evenly disperses the gas to various areas of the filter medium, avoiding the "unfiltered short circuit" problem caused by excessively fast local airflow. Simultaneously, the sealed installation design of the purification tank and the filter tube forces all gas to pass through the filter tube for processing. Attached Figure Description To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of an instrument air purification device in one embodiment of the present invention; Figure 2 for Figure 1 A cross-sectional view of the purification tank in the embodiment; Figure 3 This is a side view of the linkage sleeve in another embodiment of the present invention; In the diagram: 1. Purification tank; 2. Mounting plate; 3. Filter purification assembly; 3-1. Filter tube; 3-2. Air inlet; 3-3. Diverter spiral blade; 3-4. Connecting column; 3-5. Support frame; 3-6. Support plate; 3-7. Air outlet; 4. Linkage mounting assembly; 4-1. Connecting sleeve; 4-2. Mounting frame; 4-3. Linkage groove; 4-4. Linkage shaft; 4-5. Linkage sleeve; 4-6. Linkage frame; 4-7. Limiting cavity; 4-8. Linkage slide; 5. Insertion short pipe; 6. Extension ring; 7. Sealing arc surface; 8. Bolt mounting hole; 9. Limiting ring. Detailed Implementation The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0015] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0016] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0018] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0020] like Figures 1-3 As shown, it illustrates an instrument air purification device according to one embodiment of the present invention, which includes... Purification tank 1, with an installation plate 2 provided on the side wall of purification tank 1; The filter and purification component 3 is installed inside the purification tank 1. Linkage installation component 4 is installed between purification tank 1 and installation plate 2; The filtration and purification component 3 includes a filter tube 3-1; The filter tube 3-1 is installed inside the purification tank 1. The upper end of the purification tank 1 is provided with an air inlet 3-2. The filter tube 3-1 is connected to the air inlet 3-2. The filter tube 3-1 is provided with a flow-dividing spiral plate 3-3 inside. The filter tube 3-1 is provided with a connecting post 3-4 inside. One end of the connecting post 3-4 extends out of the filter tube 3-1.

[0021] In some examples, the purification tank 1 adopts a cylindrical structure design, which helps to stabilize the internal airflow. At the same time, the side wall of the purification tank 1 is equipped with an installation plate 2.

[0022] The core component of the filtration and purification assembly 3 is the filter tube 3-1. The filter tube 3-1 also adopts a cylindrical structure and is sealed to the purification tank 1 to prevent unfiltered gas from flowing out directly from the gap between them. The filter tube 3-1 is located inside the purification tank 1. The upper end of the purification tank 1 is provided with an air inlet 3-2. The filter tube 3-1 is connected to the air inlet 3-2, so that the instrument air to be purified can enter the filter tube 3-1 from the air inlet 3-2.

[0023] Inside the filter tube 3-1, a flow-dividing spiral plate 3-3 is installed. The flow-dividing spiral plate 3-3 adopts a spiral design. When the gas enters the filter tube 3-1, the flow-dividing spiral plate 3-3 can guide and divide the gas, so that the gas can flow more evenly through the inside of the filter tube 3-1 and improve the filtration effect. The filter tube 3-1 is also equipped with a connecting column 3-4, one end of which extends out of the filter tube 3-1.

[0024] refer to Figure 1 and Figure 3 In some embodiments, the filtration and purification assembly 3 further includes a support frame 3-5; The support frame 3-5 is set on the inner bottom surface of the purification tank 1. The upper end of the support frame 3-5 is provided with a support plate 3-6, which is fixedly mounted on the connecting column 3-4. The lower end of the purification tank 1 is provided with an air outlet 3-7, and one end of the connecting column 3-4 extends out of the air outlet 3-7.

[0025] In some examples, the filtration and purification assembly 3 also includes a support frame 3-5, which is installed on the inner bottom surface of the purification tank 1. A support plate 3-6 is fixed to the upper end of the support frame 3-5, and the support plate 3-6 is fixedly fitted onto the connecting column 3-4. Through the cooperation of the support frame 3-5 and the support plate 3-6, the connecting column 3-4 and the filter tube 3-1 are stably supported, ensuring the installation stability of the filter tube 3-1 inside the purification tank 1. The lower end of the purification tank 1 is provided with an air outlet 3-7, and one end of the connecting column 3-4 extends out of the air outlet 3-7, which facilitates the connection or operation of external components with the connecting column 3-4.

[0026] like Figures 1-3 As shown, on the other hand, this utility model also provides a linkage installation component 4, including a connecting sleeve 4-1; The connecting sleeve 4-1 is set on the outer side wall of the purification tank 1. The side wall of the connecting sleeve 4-1 is provided with a mounting frame 4-2. The mounting frame 4-2 has a linkage groove 4-3. The inside of the linkage groove 4-3 is provided with a linkage shaft 4-4. The linkage sleeve 4-5 is fitted on the linkage shaft 4-4. The outer side wall of the linkage sleeve 4-5 is provided with a linkage frame 4-6. The linkage frame 4-6 is fixedly connected to the mounting plate 2.

[0027] In some examples, the linkage installation component 4 is disposed between the purification tank 1 and the installation plate 2, and mainly includes a connecting sleeve 4-1, which is installed on the outer side wall of the purification tank 1 in order to limit the movement of the connecting sleeve 4-1.

[0028] A mounting bracket 4-2 is installed on the side wall of the connecting sleeve 4-1. A linkage groove 4-3 is opened on the mounting bracket 4-2. A linkage shaft 4-4 is installed inside the linkage groove 4-3. A linkage sleeve 4-5 is fitted on the linkage shaft 4-4. A linkage frame 4-6 is provided on the outer side wall of the linkage sleeve 4-5. The linkage frame 4-6 is fixedly connected to the mounting plate 2.

[0029] refer to Figure 1 and Figure 3 In some embodiments, the linkage mounting assembly 4 further includes limiting cavities 4-7; The limiting cavity 4-7 is opened on the linkage sleeve 4-5. One end of the linkage frame 4-6 is provided with a linkage slide 4-8. The linkage slide 4-8 and the linkage frame 4-6 are movably fitted together. The inner side of the linkage slide 4-8 is embedded in the interior of the limiting cavity 4-7.

[0030] In some examples, the linkage installation assembly 4 also includes a limiting cavity 4-7, which is formed on the linkage sleeve 4-5. A linkage slide 4-8 is installed at one end of the linkage frame 4-6. The linkage slide 4-8 and the linkage frame 4-6 are movably fitted together. The inner side of the linkage slide 4-8 is embedded in the interior of the limiting cavity 4-7. By sliding the linkage slide 4-8 in the limiting cavity 4-7 and rotating the linkage sleeve 4-5 around the linkage shaft 4-4, the relative position between the installation plate 2 and the purification tank 1 can be adjusted, which is convenient for adjusting the installation angle and position of the device according to actual installation requirements.

[0031] For example, such as Figure 2 As shown, both the upper and lower ends of the purification tank 1 are provided with insertion short pipes 5, the inner side wall of the insertion short pipe 5 is provided with an extension ring 6, and the inner side wall of the extension ring 6 is provided with a sealing arc surface 7.

[0032] In some examples, short insertion tubes 5 are provided at both the upper and lower ends of the purification tank 1. These short tubes are used to connect to external gas pipelines. An extension ring 6 is provided on the inner wall of the insertion short tube 5. The inner wall of the extension ring 6 is machined with a sealing arc surface 7. When connected to an external pipeline, the sealing arc surface 7 can fit tightly against the outer wall of the pipeline, thereby effectively improving the sealing of the connection and reducing gas leakage.

[0033] For example, such as Figure 1 As shown, bolt mounting holes 8 are provided at the four corners of the side wall of the mounting plate 2. The bolt mounting holes 8 are circular groove-shaped structures.

[0034] In some examples, bolt mounting holes 8 are provided at the four corners of the side wall of the mounting plate 2. These bolt mounting holes 8 adopt a circular groove structure. When the device is fixed by bolts, the bolt head can be embedded in the circular groove to avoid the bolt head protruding and affecting the installation or operation of surrounding components.

[0035] For example, such as Figure 1 As shown, a limiting ring 9 is provided on the outer wall of the purification tank 1. The limiting ring 9 is located at the upper and lower ends of the connecting sleeve 4-1, and the contact point between the limiting ring 9 and the connecting sleeve 4-1 is lubricated.

[0036] In some examples, limiting rings 9 are provided on the outer wall of the purification tank 1 and at both the upper and lower ends of the connecting sleeve 4-1. The contact area between the limiting ring 9 and the connecting sleeve 4-1 is lubricated. This can both limit the axial movement of the connecting sleeve 4-1 and ensure that the connecting sleeve 4-1 can rotate flexibly around the purification tank 1.

[0037] For example, such as Figure 2 As shown, both the purification tank 1 and the filter tube 3-1 are cylindrical structures, and the purification tank 1 and the filter tube 3-1 are sealed together.

[0038] During operation, the working principle of this instrument air purification device is based on the synergistic effect of gas guidance, filtration purification, and structural coordination. The specific process is as follows: 1. Gas introduction and preliminary diversion The instrument air to be purified enters the device through the air inlet 3-2 at the top of the purification tank 1 and flows directly into the filter tube 3-1. The flow-dividing spiral plate 3-3 inside the filter tube 3-1 guides the gas to flow along the spiral path, which on the one hand prolongs the residence time of the gas in the filter tube 3-1, and on the other hand makes the gas evenly dispersed, avoiding the problem of insufficient filtration caused by excessive local airflow.

[0039] 2. Filtration and purification process The filter tube 3-1 is filled with or integrated with filter media (such as desiccant, precision filter, etc., configured according to actual purification needs). When the gas passes through the filter tube 3-1 along the spiral path, the moisture, impurities, oil mist and other pollutants in it will be adsorbed or intercepted by the filter media, thus achieving purification of the instrument air. The sealing design between the purification tank 1 and the filter tube 3-1 ensures that the unpurified gas cannot bypass the filter tube 3-1 and flow out directly, ensuring that all gases pass through the filtration process.

[0040] 3. Purified gas extraction The purified gas flows out from the filter tube 3-1 and enters the chamber between the purification tank 1 and the filter tube 3-1. Finally, it is discharged through the gas outlet 3-7 at the lower end of the purification tank 1 to supply downstream instruments and equipment. The connecting column 3-4 extends from the gas outlet 3-7 and can be used with external valves or monitoring elements to realize the flow control or purity detection of the purified gas.

[0041] 4. Structural fit and stability assurance The support frame 3-5 and the support plate 3-6 are connected by a fixed column 3-4 to ensure that the filter tube 3-1 remains stable under gas impact and to avoid vibration affecting the filtration effect. The linkage mounting assembly 4 can flexibly adjust the angle and position of the mounting plate 2 by rotating the connecting sleeve 4-1 and sliding the linkage slide 4-8 in the limiting cavity 4-7 to adapt to the fixing requirements of different installation scenarios. At the same time, the limiting ring 9 restricts the axial displacement of the connecting sleeve 4-1 to ensure the stability of the overall structure. The upper and lower plug-in short pipes 5 are tightly fitted to the external pipe through the sealing arc surface 7 of the extension ring 6 to prevent gas leakage before and after purification and ensure the airtightness of the gas circuit system.

[0042] Through structural design and the coordination of functional components, the entire device achieves efficient purification, stable operation, and flexible installation of instrument air, making it suitable for industrial instrument gas applications with high requirements for gas purity.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An instrument air purification device, characterized in that, include Purification tank (1), wherein an installation plate (2) is provided on the side wall of the purification tank (1); A filtration and purification assembly (3) is disposed inside the purification tank (1); Linkage installation assembly (4), which is disposed between the purification tank (1) and the installation plate (2); The filtration and purification assembly (3) includes a filter tube (3-1); The filter tube (3-1) is disposed inside the purification tank (1). The upper end of the purification tank (1) is provided with an air inlet (3-2). The filter tube (3-1) is connected to the air inlet (3-2). The filter tube (3-1) is provided with a flow-dividing spiral blade (3-3) inside. The filter tube (3-1) is provided with a connecting post (3-4) inside. One end of the connecting post (3-4) extends out of the filter tube (3-1).

2. The instrument air purification device according to claim 1, characterized in that, It also includes a support frame (3-5); the support frame (3-5) is disposed on the inner bottom surface of the purification tank (1), the upper end of the support frame (3-5) is provided with a support plate (3-6), the support plate (3-6) is fixedly mounted on the connecting column (3-4), the lower end of the purification tank (1) is provided with an air outlet (3-7), and one end of the connecting column (3-4) extends out of the air outlet (3-7).

3. The instrument air purification device according to claim 1, characterized in that, It includes a connecting sleeve (4-1); the connecting sleeve (4-1) is disposed on the outer side wall of the purification tank (1), the side wall of the connecting sleeve (4-1) is provided with a mounting frame (4-2), the mounting frame (4-2) is provided with a linkage groove (4-3), the inside of the linkage groove (4-3) is provided with a linkage shaft (4-4), the linkage shaft (4-4) is fitted with a linkage sleeve (4-5), the outer side wall of the linkage sleeve (4-5) is provided with a linkage bracket (4-6), and the linkage bracket (4-6) is fixedly connected to the mounting plate (2).

4. The instrument air purification device according to claim 3, characterized in that, It also includes a limiting cavity (4-7); the limiting cavity (4-7) is opened on the linkage sleeve (4-5), and a linkage slide (4-8) is provided at one end of the linkage frame (4-6). The linkage slide (4-8) and the linkage frame (4-6) are movably fitted together, and the inner side of the linkage slide (4-8) is embedded in the interior of the limiting cavity (4-7).

5. The instrument air purification device according to claim 1, characterized in that, The purification tank (1) is provided with a short insertion tube (5) at both the upper and lower ends. The inner wall of the short insertion tube (5) is provided with an extension ring (6), and the inner wall of the extension ring (6) is provided with a sealing arc surface (7).

6. The instrument air purification device according to claim 1, characterized in that, The mounting plate (2) has bolt mounting holes (8) at the four corners of its side wall, and the bolt mounting holes (8) are circular groove-shaped structures.

7. The instrument air purification device according to claim 3, characterized in that, The outer wall of the purification tank (1) is provided with a limiting ring (9), which is located at the upper and lower ends of the connecting sleeve (4-1). The fitting between the limiting ring (9) and the connecting sleeve (4-1) is lubricated.

8. The instrument air purification device according to claim 1, characterized in that, Both the purification tank (1) and the filter tube (3-1) are cylindrical structures, and the purification tank (1) and the filter tube (3-1) are sealed together.

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