Integrated natural gas purification and separation device

Abstract

The utility model discloses an integrated natural gas purification and separation device, which relates to the field of natural gas separation tanks and comprises a separation tank, first connecting flanges are arranged at the top end and the bottom end of the separation tank respectively, and a lower cover and an upper cover are arranged below and above the separation tank respectively. A second connecting flange is installed on the butt joint face of the lower cover and the first connecting flange and the butt joint face of the upper cover and the first connecting flange, the first connecting flange and the second connecting flange are fixedly connected through bolts and nuts, and sealing pieces are installed on the butt joint faces of the first connecting flange and the second connecting flange. An upper filling cover and an inner fixing ring are welded to the inner walls of the two inner fixing rings, and the upper filling cover and the inner fixing ring are connected through a pipeline mechanism. According to the utility model, the pipeline mechanism is arranged and designed, so that the filling or discharging of the molecular sieve and the zinc oxide desulfurizer can be conveniently realized, and the discharging or filling efficiency is improved, thereby improving the working efficiency.

Description

Technical Field

[0001] This utility model relates to the field of natural gas separators, specifically an integrated natural gas purification and separation device. Background Technology

[0002] The integrated separation unit achieves the separation and purification of natural gas by designing dehydration and desulfurization sections inside the separation tank.

[0003] In existing technologies, after the molecular sieve and zinc oxide desulfurizer have been used for a long time, they need to be replaced. In existing technologies, it is generally necessary to manually remove the packing material, which is a long process. Utility Model Content

[0004] The purpose of this utility model is to provide an integrated natural gas purification and separation device in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an integrated natural gas purification and separation device, comprising a separation tank, wherein a first connecting flange is provided at both the top and bottom of the separation tank, a lower cover and an upper cover are respectively provided at the bottom and top of the separation tank, a second connecting flange is installed on the mating surface of the lower cover, the upper cover and the first connecting flange, the first connecting flange and the second connecting flange are fixedly connected by bolts and nuts, and a sealing element is installed on the mating surface of the two flanges, two inner fixing rings are welded to the inner wall of the separation tank, an upper filling cover and a lower filling cover are welded to the inner wall of the two inner fixing rings, the upper filling cover and the lower filling cover are connected by a pipeline mechanism, and a positioning mechanism is provided at the end of the inner wall of the separation tank and the lower cover and the upper cover.

[0006] As a further embodiment of this utility model: the positioning mechanism includes docking grooves formed at the top and bottom of the inner wall of the separation tank, and docking rings that are connected to the docking grooves are integrally formed on the docking end surfaces of the upper cover and the lower cover.

[0007] As a further embodiment of this utility model: the upper filling cover is located above the inner fixing ring, and the bottom end of the inner wall of the upper filling cover and the bottom end of the inner wall of the inner fixing ring both have an inwardly inclined conical structure.

[0008] As a further embodiment of this utility model: the pipeline mechanism includes an input pipe integrally formed on the top of the upper filling cover and an output pipe integrally formed on the bottom of the lower filling cover. The inner cavity of the input pipe is connected to the inner cavity of the upper filling cover, and the inner cavity of the output pipe is connected to the inner cavity of the lower filling cover. The openings of the output pipe and the input pipe are both connected to end caps by mounting flanges.

[0009] As a further embodiment of this utility model: the pipeline mechanism further includes a connecting pipe connecting the upper filling cover and the inner fixing ring, the inner wall of the connecting pipe is integrally formed with a limiting ring, and a sealing plug is inserted into the inner wall of the connecting pipe above the limiting ring.

[0010] As a further embodiment of this utility model: the handle of the sealing plug extends upward to the inner wall of the input tube, and an anti-detachment block is integrally formed on the top of the handle.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. By setting up a pipeline mechanism, the design of the pipeline mechanism can facilitate the filling or discharge of molecular sieves and zinc oxide desulfurizer, improving the efficiency of discharge or filling, thereby improving work efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the docking of the positioning mechanism of this utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the separator of this utility model.

[0016] In the diagram: 1. Separator; 2. Lower cover; 3. Upper cover; 4. Docking ring; 5. Docking groove; 6. Inner fixing ring; 7. Upper filling cover; 8. Lower filling cover; 9. Connecting pipe; 10. Discharge pipe; 11. Input pipe; 12. End cap; 13. Sealing plug; 14. Limiting ring; 15. Handle. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-3In this embodiment of the present invention, an integrated natural gas purification and separation device includes a separation tank 1. A first connecting flange is provided at both the top and bottom of the separation tank 1. A lower cover 2 and an upper cover 3 are respectively provided at the bottom and top of the separation tank 1. A second connecting flange is installed on the mating surface of the lower cover 2, the upper cover 3 and the first connecting flange. The first connecting flange and the second connecting flange are fixedly connected by bolts and nuts, and a sealing element is installed on their mating surface. Two inner fixing rings 6 are welded to the inner wall of the separation tank 1. An upper filling cover 7 and a lower filling cover 8 are welded to the inner wall of the two inner fixing rings 6. The upper filling cover 7 and the lower filling cover 8 are connected by a pipeline mechanism. A positioning mechanism is provided at the end of the inner wall of the separation tank 1 and the lower cover 2 and the upper cover 3.

[0019] In this embodiment: When natural gas undergoes separation and impurity removal, it generally involves dehydration, desulfurization, and decarbonization. Natural gas enters the separation tank 1 through the inlet of the lower cover 2. The natural gas in the separation tank 1 moves upwards through the lower filling hood 8 and the upper filling hood 7. The lower filling hood 8 is filled with granular molecular sieves. Molecular sieves are aluminosilicate crystals with a uniform microporous structure. Their pore size is similar to the diameter of water molecules, allowing them to selectively adsorb water molecules. They have high dehydration efficiency and adsorption capacity, effectively dehydrating the water contained in the natural gas. The upper filling hood 7 is filled with granular zinc oxide desulfurizing agent, typically made with zinc oxide as the main active ingredient and a small amount of co-catalyst such as manganese oxide. It reacts with hydrogen sulfide in the natural gas to generate zinc sulfide, exhibiting high desulfurization precision and large sulfur capacity. It can remove hydrogen sulfide from natural gas to below 0.1 ppm, making it suitable for removing low-concentration hydrogen sulfide and achieving desulfurization of sulfides in natural gas.

[0020] When the filling material in the upper filling cover 7 and the lower filling cover 8 needs to be replaced after a long period of use, the separation tank 1 is separated from the upper cover 3 and the lower cover 2. After separation, the filling material is taken out through the pipeline mechanism. Then, the new filling material is filled into the upper filling cover 7 and the lower filling cover 8 through the pipeline mechanism. After the replacement is completed, the separation tank 1 is repositioned and docked with the upper cover 3 and the lower cover 2 through the positioning mechanism.

[0021] Please refer to this carefully. Figure 2 The positioning mechanism includes docking grooves 5 formed at the top and bottom of the inner wall of the separation tank 1, and docking rings 4 integrally formed on the docking end surfaces of the upper cover 3 and the lower cover 2, which are in contact with the docking grooves 5.

[0022] In this embodiment: when the separation tank 1 is docked with the upper cover 3 and the lower cover 2, after the separation tank 1 is moved above the lower cover 2, the separation tank 1 is lowered. The docking groove 5 on the lower part of the inner wall of the separation tank 1 docks with the docking ring 4 on the upper part of the lower cover 2 to facilitate alignment. Then, the upper cover 3 is moved above the separation tank 1 and lowered. The upper cover 3 drives the docking ring 4 at its bottom end to dock with the docking groove 5 on the upper part of the separation tank 1 to achieve effective alignment. This method can effectively avoid misalignment during the docking process, thus avoiding the problem of poor sealing and misalignment.

[0023] Please refer to this carefully. Figure 2 and Figure 3 The upper filling cover 7 is located above the inner fixing ring 6. The bottom of the inner wall of the upper filling cover 7 and the bottom of the inner wall of the inner fixing ring 6 are both inwardly inclined conical structures. The pipeline mechanism includes an input pipe 11 integrally formed on the top of the upper filling cover 7 and an output pipe 10 integrally formed on the bottom of the lower filling cover 8. The inner cavity of the input pipe 11 is connected to the inner cavity of the upper filling cover 7, and the inner cavity of the output pipe 10 is connected to the inner cavity of the lower filling cover 8. The openings of the output pipe 10 and the input pipe 11 are both connected to end caps 12 by mounting flanges. The pipeline mechanism also includes a connecting pipe 9 connecting the upper filling cover 7 and the inner fixing ring 6. The inner wall of the connecting pipe 9 is integrally formed with a limiting ring 14, and a sealing plug 13 is inserted into the inner wall of the connecting pipe 9 above the limiting ring 14.

[0024] In this embodiment: When replacing the filler, after disassembling the separator 1, first remove the upper end cap 12. Then, by pulling the handle 15, the handle 15 moves the rubber sealing plug 13 out from the inner wall of the connecting pipe 9. Then, remove the lower end cap 12. At this time, the filler inside the upper filling cover 7 and the lower filling cover 8 falls under the conical surface to discharge the filler. After discharge, cleaning is performed (e.g., blowing with high-pressure gas to further clean the residual filler). After cleaning and drying, first connect the lower end cap 12 to the bottom end of the discharge pipe 10. Then, insert a pipe from the top of the separator 1 into the interior of the connecting pipe 9 and extend it to the limit. Below the position ring 14, granular molecular sieve is added into the lower filling hood 8 until it is full. After it is full, it is inserted into the connecting pipe 9 through the handle 15 until the handle 15 drives the sealing plug 13 into the connecting pipe 9 to seal the connecting pipe 9. Then, granular zinc oxide desulfurizer is added into the upper filling hood 7 through the input pipe 11 until it is full. Finally, the upper end cap 12 is connected. During the process of adding molecular sieve and zinc oxide desulfurizer into the lower filling hood 8 and the upper filling hood 7, the filling material can be filled evenly and fully by external vibration (such as ultrasonic vibration, with the end of the ultrasonic transducer abutting against the outer wall of the separation tank 1).

[0025] It should be noted that the inner wall of the limiting ring 14 has a conical structure that is wider at the top and narrower at the bottom, and the position where the sealing plug 13 contacts the conical surface matches the conical surface. This design can prevent the filling material in the upper filling cover 7 from being trapped by the limiting ring 14 during the outward discharge process.

[0026] Please refer to this carefully. Figure 3 The handle 15 of the plug 13 extends upward to the inner wall of the input tube 11, and the top of the handle 15 is integrally formed with an anti-detachment block.

[0027] In this embodiment, the anti-detachment block design can prevent the handle 15 from slipping out of your hand when it is being pulled upwards.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An integrated natural gas purification and separation device, comprising a separation tank (1), characterized in that, The top and bottom of the separation tank (1) are provided with a No. 1 connecting flange. The bottom and top of the separation tank (1) are respectively provided with a lower cover (2) and an upper cover (3). A No. 2 connecting flange is installed on the mating surface of the lower cover (2), the upper cover (3) and the No. 1 connecting flange. The No. 1 connecting flange and the No. 2 connecting flange are fixedly connected by bolts and nuts, and a sealing element is installed on the mating surface of the two. Two inner fixing rings (6) are welded to the inner wall of the separation tank (1). An upper filling cover (7) and a lower filling cover (8) are welded to the inner wall of the two inner fixing rings (6). The upper filling cover (7) and the lower filling cover (8) are connected by a pipeline mechanism. A positioning mechanism is provided at the end of the inner wall of the separation tank (1) and the lower cover (2) and the upper cover (3).

2. The integrated natural gas purification and separation device according to claim 1, characterized in that, The positioning mechanism includes docking grooves (5) formed at the top and bottom of the inner wall of the separation tank (1), and docking rings (4) that are connected to the docking grooves (5) are integrally formed on the docking end surfaces of the upper cover (3) and the lower cover (2).

3. The integrated natural gas purification and separation device according to claim 1, characterized in that, The upper filling cover (7) is located above the inner fixing ring (6), and the bottom of the inner wall of the upper filling cover (7) and the bottom of the inner wall of the inner fixing ring (6) are both inwardly inclined conical structures.

4. The integrated natural gas purification and separation device according to claim 3, characterized in that, The piping mechanism includes an input pipe (11) integrally formed on the top of the upper filling cover (7) and an output pipe (10) integrally formed on the bottom of the lower filling cover (8). The inner cavity of the input pipe (11) is connected to the inner cavity of the upper filling cover (7), and the inner cavity of the output pipe (10) is connected to the inner cavity of the lower filling cover (8). The openings of the output pipe (10) and the input pipe (11) are both connected to end caps (12) by mounting flanges.

5. The integrated natural gas purification and separation device according to claim 4, characterized in that, The pipeline mechanism also includes a connecting pipe (9) connecting the upper filling cover (7) and the inner fixing ring (6). The inner wall of the connecting pipe (9) is integrally formed with a limiting ring (14), and a sealing plug (13) is inserted into the inner wall of the connecting pipe (9) above the limiting ring (14).

6. The integrated natural gas purification and separation device according to claim 5, characterized in that, The handle (15) of the sealing plug (13) extends upward to the inner wall of the input pipe (11), and the top of the handle (15) is integrally formed with an anti-detachment block.

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