Filter device capable of being quickly replaced and molecular sieve drying tower

Abstract

The utility model discloses a filter device and a molecular sieve drying tower capable of being replaced quickly, the filter device is mounted on a gas outlet pipe of the molecular sieve drying tower and comprises a mounting pipeline, connecting flanges are arranged at two ends of the mounting pipeline, a filter element pipe is obliquely arranged on one side of the mounting pipeline, and a filter element extending into the mounting pipeline is mounted in the filter element pipe. All media flowing through the mounting pipeline can be discharged after passing through the filter element; a flange cover for pressing the filter element on the inner wall of the mounting pipeline is mounted at the opening end of the filter element pipe; according to the utility model, the filter device capable of being quickly replaced is arranged at the air outlet of the molecular sieve drying tower, so that a silk screen part in the drying tower can be omitted, and the filter element (which can be a silk screen filter element) of the filter device is of a replaceable structure; the filter element of the filter can be quickly detached to be cleaned or replaced by a new filter element; therefore, the labor intensity of dismounting and mounting the filtering part is reduced, and the operation and maintenance time is shortened.

Description

Technical Field

[0001] This utility model relates to a drying tower, specifically a quick-change filter device and a molecular sieve drying tower. Background Technology

[0002] Molecular sieve dehydration and drying towers utilize packed molecular sieves to adsorb moisture from gases. Since molecular sieves are made of aluminosilicates, they are easily pulverized and produce fine powder when subjected to gas impact or changes in working pressure. If this powder enters downstream equipment, it will contaminate downstream valves and internal components, affecting the working performance of valves and equipment and reducing their service life.

[0003] To address the issue of powder entering downstream equipment, the traditional method involves installing wire mesh at the contact points between the drying tower's inlet and outlet connections and the molecular sieve to block the molecular sieve powder. This wire mesh is located inside the container. However, the wire mesh has flow pores, and as the drying tower is used over time, the powder generated by the molecular sieve gradually clogs these pores, leading to reduced gas flow or even blocked airflow. Therefore, regular cleaning or replacement of the wire mesh is necessary. Since the wire mesh is located inside the bottom flange of the container, the bottom flange must be removed to access it. Because the bottom flange is a large-diameter flange, disassembly and installation require considerable operating space, and its weight makes the process labor-intensive and time-consuming, impacting equipment operating efficiency. Utility Model Content

[0004] Therefore, in order to solve the above-mentioned shortcomings, this utility model provides a quick-replaceable filter device and a molecular sieve drying tower. By installing a quick-replaceable filter device at the outlet of the molecular sieve drying tower, the wire mesh component inside the drying tower can be eliminated. The filter element (which can be a wire mesh filter element) of the filter device is a replaceable structure. If the molecular sieve powder causes the pores of the pipeline filter element to decrease or become blocked, the filter element can be quickly removed for cleaning or replaced with a new filter element. This reduces the labor intensity of disassembling and installing filter components and shortens the operation and maintenance time.

[0005] Specifically, this utility model provides a quick-replaceable filter device installed on the outlet pipe of a molecular sieve drying tower. It includes an installation pipe with connecting flanges at both ends. A filter element tube is inclinedly arranged on one side of the installation pipe. A filter element extending into the installation pipe is installed inside the filter element tube. The medium flowing through the installation pipe can only be discharged after passing through the filter element.

[0006] The filter element tube has a flange cover installed at its open end to press the filter element against the inner wall of the installation pipe.

[0007] Optionally, the installation pipe has a filter element limiting part, which is an inwardly convex limiting ring.

[0008] Optionally, the middle part of the limiting protrusion ring is a medium flow hole, through which the medium in the installation pipeline needs to pass from the inlet to the outlet. A limiting groove for positioning the filter element is provided on the side of the medium flow hole near the filter element.

[0009] Optionally, the installation pipe and the filter element tube are integrally formed, wherein the filter element tube is inclined toward the outlet end of the installation pipe, and the included angle between them is an acute angle.

[0010] Optionally, a sealing element is provided between the flange cover and the filter element tube.

[0011] On the other hand, this utility model also provides a molecular sieve drying tower, in which a molecular sieve is installed by means of a molecular sieve grid, and a filter device as described above is connected to the gas outlet pipe of the molecular sieve drying tower by means of a flange connection.

[0012] Optionally, fine ceramic balls and coarse ceramic balls are sequentially arranged in the upper part of the molecular sieve, located inside the molecular sieve drying tower and below the air inlet, and coarse ceramic balls and fine ceramic balls are sequentially arranged in the lower part of the molecular sieve, located above the molecular sieve grid support; the molecular sieve grid support is located above the air outlet pipe.

[0013] This utility model has the following advantages:

[0014] This invention relates to a quick-replaceable filter device and a molecular sieve drying tower. The quick-replaceable filter device is installed in the outlet pipe of the drying tower to filter the medium (such as gas), preventing large particles from entering downstream equipment and affecting its normal operation. This filter device uses a filter cartridge tube to install the filter element, allowing all the medium to pass through the filter element, which is replaceable and easy to install and remove. The molecular sieve drying tower with this filter device eliminates the need for internal wire mesh components, placing the filter device in the outlet pipe. Based on the structure of this filter device, the filter element can be quickly removed for cleaning or replacement, thus reducing the labor intensity of disassembling and installing filter components and shortening operation and maintenance time. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the molecular sieve drying tower described in this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the quick-replaceable filter device described in this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the quick-replaceable filter device (removable filter element) described in this utility model;

[0018] In the diagram: 1. Coarse ceramic ball; 2. Fine ceramic ball; 3. Molecular sieve; 4. Molecular sieve grid; 5. Filter device; 51. Limiting protrusion ring; 52. Media flow hole; 53. Limiting groove; 54. Seal; 55. Flange cover; 6. Filter element. Detailed Implementation

[0019] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0020] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0021] As described in the background section, to address the issue of powder from molecular sieves entering downstream equipment, the traditional method involves installing wire mesh at the contact points between the inlet and outlet pipes of the drying tower and the molecular sieve to block the molecular sieve powder. The wire mesh is located inside the container. However, the wire mesh has flow pores, and as the drying tower is used for longer periods, the powder generated by the molecular sieve will gradually clog the wire mesh pores, leading to reduced gas flow or even blocking the airflow. Therefore, the wire mesh needs to be cleaned or replaced regularly. Since the wire mesh is located inside the bottom flange of the container, the bottom flange needs to be removed to retrieve the internal wire mesh. Because the bottom flange is a large-diameter flange, disassembly and installation require a large operating space, and the flange is heavy, resulting in high labor intensity and long time consumption during disassembly and installation, which affects the operating efficiency of the equipment.

[0022] For the reasons mentioned above, this embodiment provides a quickly replaceable filter device 5, which is installed on the outlet pipe of the molecular sieve drying tower, such as... Figure 2 and Figure 3 As shown, it includes an installation pipe with connecting flanges at both ends. A filter element tube is installed at an angle on one side of the installation pipe. A filter element 6 extending into the installation pipe is installed inside the filter element tube. The medium flowing through the installation pipe can only be discharged after passing through the filter element.

[0023] The filter element tube is fitted with a flange cover 55 at its open end to press the filter element against the inner wall of the installation pipe.

[0024] The aforementioned technical features enable all gas in the molecular sieve drying tower to be filtered through the filter element, and the filter element can be quickly installed and disassembled, which is more efficient than traditional filter screens. In the above technical features, the installation pipe is mainly used to connect the gas outlet pipe of the molecular sieve drying tower, providing a flow channel for the medium (gas). The inclined filter element tube is used to install the filter element, ensuring that the filter element fits snugly against the inner wall of the installation pipe, allowing all the medium to flow through the filter element. Furthermore, the filter element is installed by pressing with a flange cover, which enables quick replacement, installation, and disassembly of the filter element.

[0025] To ensure the filter element is properly positioned within the installation pipe and prevents it from flowing with the medium, in one embodiment, the installation pipe has a filter element positioning portion, which is an inwardly convex positioning ring 51. The center of the positioning ring is a medium flow hole 52, through which the medium in the installation pipe flows from the inlet to the outlet. A positioning groove 53 for positioning the filter element is located near the filter element side of the medium flow hole. The installation pipe and the filter element tube are integrally formed, with the filter element tube inclined towards the outlet end of the installation pipe at an acute angle.

[0026] Among the above technical features, the installation and positioning of the filter element can be achieved through the convex ring and the inclined filter element tube, wherein the medium flow hole is used for medium flow to guide the medium into the filter element, and the limiting groove is used to limit the filter element.

[0027] To improve sealing performance, in one embodiment, a sealing element 54 is provided between the flange cover 55 and the filter tube.

[0028] In another embodiment, such as Figure 1 As shown, a molecular sieve drying tower is provided. A molecular sieve 3 is installed inside the drying tower and supported by a molecular sieve grid 4. A filter device 5, as described above, is connected to the outlet pipe of the molecular sieve drying tower via a flange connection. Fine ceramic balls 2 and coarse ceramic balls 1 are sequentially arranged above the molecular sieve, located inside the drying tower and below the air inlet. Coarse ceramic balls 1 and fine ceramic balls 2 are sequentially arranged above the molecular sieve grid support at the bottom of the molecular sieve. The molecular sieve grid support is located above the outlet pipe.

[0029] The aforementioned technical features enable the use of molecular sieves to adsorb moisture from gases, achieving drying. By installing a filter device on the outlet pipe, the medium (such as gas) can be filtered, preventing large particles from entering downstream equipment and affecting its normal operation. This filter device uses a filter cartridge tube to install the filter element, allowing all the medium to pass through the filter element, which is replaceable and easy to install and remove. Furthermore, a molecular sieve drying tower with this filter device can eliminate the need for internal wire mesh components, placing the filter device at the outlet pipe. Based on the structure of this filter device, the filter element can be quickly removed for cleaning or replacement, thus reducing the labor intensity of disassembling and installing filter components and shortening operation and maintenance time.

[0030] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A quick-replaceable filter device, characterized in that: The gas outlet pipe of the molecular sieve drying tower is installed, including the installation pipe. Both ends of the installation pipe are connecting flanges. A filter element pipe is installed at an angle on one side of the installation pipe. A filter element extending into the installation pipe is installed in the filter element pipe. The medium flowing through the installation pipe can only be discharged after passing through the filter element. The filter element tube has a flange cover installed at its open end to press the filter element against the inner wall of the installation pipe.

2. The quick-replaceable filter device according to claim 1, characterized in that: The installation pipe has a filter element limiting part, which is an inwardly convex limiting ring.

3. The quick-replaceable filter device according to claim 2, characterized in that: The middle part of the limiting protrusion ring is a medium flow hole. The medium in the installation pipeline needs to pass through this medium flow hole from the inlet to the outlet. There is a limiting groove for positioning the filter element on the side of the medium flow hole near the filter element.

4. The quick-replaceable filter device according to claim 1, characterized in that: The installation pipe and the filter element tube are integrally formed, wherein the filter element tube is inclined towards the outlet end of the installation pipe, and the included angle between them is an acute angle.

5. The quick-replaceable filter device according to claim 1, characterized in that: A sealing element is provided between the flange cover and the filter tube.

6. A molecular sieve drying tower, characterized in that: A molecular sieve is installed inside the molecular sieve drying tower by means of a molecular sieve grid, and a filter device as described in any one of claims 1-5 is connected to the gas outlet pipe of the molecular sieve drying tower by means of a flange connection.

7. The molecular sieve drying tower according to claim 6, characterized in that: Fine ceramic balls and coarse ceramic balls are sequentially arranged in the upper part of the molecular sieve, located inside the molecular sieve drying tower and below the air inlet. Coarse ceramic balls and fine ceramic balls are sequentially arranged in the lower part of the molecular sieve, located above the molecular sieve grid support. The molecular sieve grid support is located above the air outlet pipe.

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