Filter element replacement device for cyclone desander

Abstract

The utility model discloses a filter element replacement device for a cyclone desander in the technical field of desanders, which comprises a desanding cylinder, a positioning plate and a sealing plate, a first U-shaped fixing ring and a second U-shaped fixing ring are arranged on the upper portion of the desanding cylinder, first fixing blocks are arranged at two ends of the first U-shaped fixing ring, and second fixing blocks are arranged at two ends of the second U-shaped fixing ring. Second fixing blocks are arranged at the two ends of the second U-shaped fixing ring correspondingly, rotating shafts are arranged in the middles of the first fixing blocks and the second fixing blocks correspondingly, threaded holes are formed in the middles of the rotating shafts, bolts are arranged in the threaded holes, a first supporting rod is arranged on the upper portion of the right side of the sand removing cylinder, and a second supporting rod is arranged at the right end of the first supporting rod; an L-shaped fixing rod is arranged at the top of the second supporting rod, the second supporting rod rotates through a positioning shaft, the sealing plate is driven to move through the L-shaped fixing rod, the desanding cylinder filter element is replaced under the condition that hoisting equipment does not need to be used, and the replacement efficiency of the filter element is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of desanders, in particular to a filter element replacement device for a cyclone desander. Background Technique

[0002] During the process of natural gas extraction, after the natural gas is extracted, a desander is needed to filter the sand and gravel contained in the natural gas. After the desander works for a certain period of time, the filter element of the desander needs to be replaced. For example, in a vertical desander filter element installation structure (patent number: CN201920955319.8) disclosed in Chinese patent literature, the filter element installation structure is simple and the filter element can be quickly replaced. Since the sealing plate at the top of the desander cylinder is generally heavy, a hoisting device is required for hoisting when replacing the filter element. The hoisting device not only occupies moving space but also reduces the replacement speed of the filter element. Moreover, the sealing plate is mostly fixed by multiple groups of bolts, and each group of bolts needs to be disassembled and tightened during the replacement process, which also affects the replacement speed of the filter element.

[0003] Therefore, we propose a filter element replacement device for a cyclone desander. Content of the Utility Model

[0004] The purpose of the utility model is to provide a filter element replacement device for a cyclone desander to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A filter element replacement device for a cyclone desander, including a desander cylinder, a positioning plate and a sealing plate. The upper part of the desander cylinder is provided with a first U-shaped fixing ring and a second U-shaped fixing ring. Both ends of the first U-shaped fixing ring are provided with first fixing blocks, and both ends of the second U-shaped fixing ring are provided with second fixing blocks. A rotating shaft is arranged in the middle of the first fixing block and the second fixing block, a threaded hole is arranged in the middle of the rotating shaft, and a bolt is arranged in the threaded hole. The upper right part of the desander cylinder is provided with a first support rod, the right end of the first support rod is provided with a second support rod, and the top of the second support rod is provided with an L-shaped fixing rod. The upper and lower inner walls of the first U-shaped fixing ring and the second U-shaped fixing ring are both set as first inclined surfaces, and both ends of the bottom of the positioning plate and both ends of the top of the sealing plate are set as second inclined surfaces.

[0006] Preferably, a positioning shaft is arranged at the upper right end of the first support rod, and an installation hole matching with the positioning shaft is arranged at the lower part of the second support rod.

[0007] Preferably, the L-shaped fixing rod is welded on the second support rod, and the bottom end of the L-shaped fixing rod is fixedly connected with the sealing plate.

[0008] Preferably, the first inclined surface and the second inclined surface have the same inclination angle.

[0009] Preferably, both ends of the rotating shaft are connected to the upper and lower inner walls through bearing mounting grooves.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: When the bolts are detached from the first fixing block and the second fixing block, the first U-shaped fixing ring and the second U-shaped fixing ring can be quickly disassembled. The grooves in the middle of the first U-shaped fixing ring and the second U-shaped fixing ring hold the positioning plate and the sealing plate, allowing the bolts to pass through the threaded holes provided on the first fixing block and the second fixing block and tightening the bolts, thereby quickly fixing the sealing plate, improving the replacement efficiency of the sand removal cylinder filter element. Moreover, the second support rod rotates through the positioning shaft, driving the sealing plate to move through the L-shaped fixing rod, enabling the replacement of the sand removal cylinder filter element without the need for lifting equipment and improving the replacement efficiency of the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic structural view of the present utility model;

[0012] Figure 2 is a schematic structural view of the fixing ring of the present utility model;

[0013] Figure 3 is a schematic structural view of the sealing plate installation of the present utility model;

[0014] Figure 4 is a schematic structural view of the fixing block of the present utility model;

[0015] Figure 5 is a schematic structural view of the second support rod installation of the present utility model.

[0016] In the figure: 1, sand removal cylinder; 2, first U-shaped fixing ring; 3, first fixing block; 4, first support rod; 5, second support rod; 6, L-shaped fixing rod; 7, second U-shaped fixing ring; 8, second fixing block; 9, bolt; 10, mounting groove; 11, rotating shaft; 12, threaded hole; 13, positioning plate; 14, sealing plate; 15, first inclined surface; 16, second inclined surface; 17, mounting hole; 18, positioning shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0018] Please refer to Figures 1-5, the present utility model provides a technical solution: a filter element replacement device for a cyclone sand remover, including a sand removal cylinder 1, a positioning plate 13 and a sealing plate 14. A first U-shaped fixing ring 2 and a second U-shaped fixing ring 7 are arranged at the upper part of the sand removal cylinder 1. Both ends of the first U-shaped fixing ring 2 are provided with first fixing blocks 3, and both ends of the second U-shaped fixing ring 7 are provided with second fixing blocks 8. A rotating shaft 11 is arranged in the middle of the first fixing block 3 and the second fixing block 8, a threaded hole 12 is arranged in the middle of the rotating shaft 11, and a bolt 9 is arranged in the threaded hole 12. A first support rod 4 is arranged at the upper right part of the sand removal cylinder 1, a second support rod 5 is arranged at the right end of the first support rod 4, an L-shaped fixing rod 6 is arranged at the top of the second support rod 5. The upper and lower inner walls of the first U-shaped fixing ring 2 and the second U-shaped fixing ring 7 are both set as a first inclined surface 15, and both ends of the bottom of the positioning plate 13 and both ends of the top of the sealing plate 14 are set as a second inclined surface 16. Use a tool (such as a wrench) to rotate the bolt 9 to loosen the bolt 9, so that the bolt 9 disengages from the first fixing block 3 and the second fixing block 8, and quickly disassemble the first U-shaped fixing ring 2 and the second U-shaped fixing ring 7. The first U-shaped fixing ring 2 and the second U-shaped fixing ring 7 release the fixation of the sealing plate 14, and rotate the L-shaped fixing rod 6. The second support rod 5 rotates through the positioning shaft 18, so that the sealing plate 14 moves away from the upper part of the sand removal cylinder 1. There is no need to hoist the sealing plate 14, and quickly replace the filter element in the sand removal cylinder 1. After the filter element replacement is completed, just rotate the L-shaped fixing rod 6 to install the sealing plate 14 on the top of the sand removal cylinder 1, install the first U-shaped fixing ring 2 and the second U-shaped fixing ring 7, so that the grooves in the middle of the first U-shaped fixing ring 2 and the second U-shaped fixing ring 7 catch the positioning plate 13 and the sealing plate 14, make the bolt 9 pass through the threaded holes 12 arranged on the first fixing block 3 and the second fixing block 8, and tighten the bolt 9 to quickly fix the sealing plate 14, thereby improving the replacement efficiency of the filter element in the sand removal cylinder 1.

[0019] Reference embodiment: A positioning shaft 18 is arranged at the upper right end of the first support rod 4, an installation hole 17 matched with the positioning shaft 18 is arranged at the lower part of the second support rod 5, the L-shaped fixing rod 6 is welded on the second support rod 5, the bottom end of the L-shaped fixing rod 6 is fixedly connected with the sealing plate 14, and the second support rod 5 rotates through the positioning shaft 18 to drive the sealing plate 14 to move through the L-shaped fixing rod 6, so as to replace the filter element of the sand removal cylinder without using hoisting equipment, and improve the replacement efficiency of the filter element.

[0020] Reference embodiment: The inclination angles of the first inclined surface 15 and the second inclined surface 16 are the same. During the process of rotating the bolt 9 to tighten the first U-shaped fixing ring 2 and the second U-shaped fixing ring 7, the first inclined surface 15 arranged on the first U-shaped fixing ring 2 and the second U-shaped fixing ring 7 presses the inclined surfaces arranged on the positioning plate 13 and the sealing plate 14 to fix and tighten the sealing plate 14.

[0021] Reference embodiment: Both ends of the rotating shaft 11 are connected to the upper and lower inner walls of the bearing installation groove 10. During the process of fastening the first U-shaped fixing ring 2 and the second U-shaped fixing ring 7, when the first fixing block 3 and the second fixing block 8 are not parallel, the rotating shaft 11 rotates to ensure that the centers of the threaded holes 12 in the middle of the rotating shaft 11 provided on the first fixing block 3 and the second fixing block 8 are on the same horizontal straight line, facilitating the installation and fastening of the bolt 9.

[0022] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filter element replacement device for a cyclone sand remover, comprising a sand removal cylinder (1), a positioning plate (13) and a sealing plate (14), characterized in that: A first U-shaped fixing ring (2) and a second U-shaped fixing ring (7) are arranged at the upper part of the sand removal cylinder (1). Both ends of the first U-shaped fixing ring (2) are provided with first fixing blocks (3). Both ends of the second U-shaped fixing ring (7) are provided with second fixing blocks (8). A rotating shaft (11) is arranged in the middle of both the first fixing block (3) and the second fixing block (8). A threaded hole (12) is arranged in the middle of the rotating shaft (11). A bolt (9) is arranged in the threaded hole (12). A first support rod (4) is arranged at the upper right part of the sand removal cylinder (1). The right end of the first support rod (4) is provided with a second support rod (5). An L-shaped fixing rod (6) is arranged at the top of the second support rod (5). The upper and lower inner walls of the first U-shaped fixing ring (2) and the second U-shaped fixing ring (7) are both arranged as first inclined surfaces (15). Both ends of the bottom of the positioning plate (13) and both ends of the top of the sealing plate (14) are arranged as second inclined surfaces (16).

2. The filter element replacement device for a cyclone desander according to claim 1, characterized in that: A positioning shaft (18) is arranged at the right end of the top of the first support rod (4). An installation hole (17) which is matched with the positioning shaft (18) is arranged at the lower part of the second support rod (5).

3. A filter element replacement device for a cyclone desander according to claim 1, characterized in that: The L-shaped fixing rod (6) is welded on the second support rod (5), and the bottom end of the L-shaped fixing rod (6) is fixedly connected with the sealing plate (14).

4. A filter element replacement device for a cyclone desander according to claim 1, characterized in that: The inclination angles of the first inclined surface (15) and the second inclined surface (16) are the same.

5. A filter element replacement device for a cyclone desander according to claim 1, characterized in that: Both ends of the rotating shaft (11) are connected through the upper and lower inner walls of the bearing installation groove (10).

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