Natural gas dehydration and dealkylation control device

Abstract

The utility model relates to a natural gas dehydration and dealkylation control device which comprises two groups of inner boxes, the bottoms of the inner boxes are fixedly connected with material gathering boxes, the top ends of the inner boxes are communicated with the interiors of the material gathering boxes, and the interiors of the inner boxes are fixedly connected with cylindrical filter screen cylinders and cooling pipes used for circulating cold air. One side of the inner box is fixedly connected with a first gas inlet pipe used for inputting natural gas, the other side of the inner box is fixedly connected with a second gas inlet pipe used for outputting the natural gas, one end of the first gas inlet pipe is located outside the inner box, and the other end of the first gas inlet pipe is located between the outer side of the filter screen cylinder and the inner side of the inner box; one end of the second air inlet pipe penetrates to the inner side of the filter screen cylinder, and the other end extends to the outside of the inner box. According to the utility model, small-particle solid-state hydrates and large-particle solid-state hydrates can be effectively prevented from blocking pipelines and valves, manual dredging is avoided, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of natural gas dehydration and dehydrocarbonization, in particular to a natural gas dehydration and dehydrocarbonization control device. Background Art

[0002] The low-temperature separation, dehydration and dehydrocarbonization process is a commonly used processing process. Its process principle is mainly to utilize the different dew point temperatures of various components in natural gas, cool them through refrigeration equipment, and then perform low-temperature separation to obtain product gas that meets the hydrocarbon and water dew point requirements.

[0003] The patent with application number CN202320871190.9 discloses a low-temperature separation dehydration and dehydrocarbonization device, which belongs to the field of dehydration and dehydrocarbonization technology, and includes an outer shell, a fixed box is installed on the top of the outer shell, and a vortex tube and an air compressor are respectively arranged on both sides of the inner cavity of the fixed box. The air inlet end of the vortex tube is connected to the air inlet pipe, and one end of the air inlet pipe is connected to the air outlet end of the air compressor.

[0004] Although the above-mentioned dehydration and dehydrocarbonization device can discharge some solid water compounds into the discharge box, some solid water compounds with lighter weight and smaller particles will still flow into the pipelines and valves, causing blockage of the pipelines and valves, which requires manual unblocking, which is time-consuming and labor-intensive. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a natural gas dehydration and dehydrocarbon control device, and the specific technical scheme is as follows:

[0006] A natural gas dehydration and dehydrocarbon control device comprises two groups of inner boxes, the bottom of the inner box is fixedly connected to a material aggregation box, the top of the inner box is communicated with the inside of the material aggregation box, the inside of the inner box is fixedly connected to a cylindrical filter cylinder and a cooling pipe for circulating cold air, one side of the inner box is fixedly connected to a first air inlet pipe for inputting natural gas, and the other side of the inner box is fixedly connected to a second air inlet pipe for outputting natural gas, wherein one end of the first air inlet pipe is located outside the inner box, and the other end is located between the outside of the filter cylinder and the inside of the inner box, and one end of the second air inlet pipe passes through the inside of the filter cylinder, and the other end extends to the outside of the inner box.

[0007] As an improvement of the above technical solution: the cooling tube is spirally arranged, a driving motor is fixedly installed in the middle of the top of the inner wall of the filter cylinder, the bottom end of the driving motor is fixedly connected to a rotating shaft, the rotating shaft is fixedly connected to a scraper plate matching the inner wall of the filter cylinder through a connecting rod, the scraper plate is fixedly connected to a cleaning brush on the side away from the cooling tube, and the scraper plate is fixedly connected to a plurality of stirring rods on the side away from the cleaning brush.

[0008] As an improvement of the above technical solution: a port of the second air inlet pipe located on the inner side of the filter cylinder is fixedly connected with a filter plate, and the bottom of the filter cylinder is fixedly connected with a bottom pipe.

[0009] As an improvement of the above technical solution: the second air intake pipe on one of the inner boxes is connected to the first air intake pipe on the other one through a first connecting pipe, the top ends of the two cooling pipes are fixedly connected with a first ventilation pipe, one end of the first ventilation pipe away from the cooling pipe extends to the outside of the inner box, and the bottom ends of the two cooling pipes are connected through a second connecting pipe.

[0010] As an improvement of the above technical solution: a partition is fixedly connected to the middle of the interior of the aggregate box, and the partition divides the interior of the aggregate box into two inner cavities. Discharge blocks are inserted at both ends of the aggregate box, and hydraulic cylinders are fixedly installed on both sides of the partition. The side of the hydraulic cylinder close to the discharge block is connected to a push plate through an output rod.

[0011] Beneficial effects of the utility model:

[0012] When the natural gas is to be dehydrated and dehydrocarbonized, firstly, cold air is passed into the cooling pipe through the first ventilation pipe, and the temperature in the inner box gradually diffuses and decreases from the cooling pipe. After a period of time, the natural gas is introduced into the inner box and located on the outside of the filter cylinder through the first air inlet pipe. The natural gas is condensed by the low temperature to produce large particles of solid water compounds, which flow from the outside of the filter cylinder into the aggregate box, so that most of the solid water compounds can be effectively prevented from entering the aggregate box through the filter cylinder. The filter plate at the port of the second air inlet pipe can prevent small particles and solid water compounds inside the filter cylinder from entering the second air inlet pipe, so as to effectively prevent small particles of solid water compounds and large particles of solid water compounds from clogging the pipeline and valves, avoid manual dredging, and save time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the internal structure of the utility model as a whole;

[0014] Figure 2 for Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0015] Figure numerals: 2, inner box; 3, filter cylinder; 31, first air inlet pipe; 32, second air inlet pipe; 4, first ventilation pipe; 5, cooling pipe; 6, driving motor; 61, rotating shaft; 62, connecting rod; 63, scraper plate; 64, cleaning brush; 65, stirring rod; 7, first connecting pipe; 8, second connecting pipe; 9, gathering box; 90, discharge block; 91, partition; 92, hydraulic cylinder; 93, push plate. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0017] Example

[0018] A natural gas dehydration and dehydrocarbon control device, please refer to Figure 1-Figure 2 , including two groups of inner boxes 2, the bottom of the inner box 2 is fixedly connected with a polymer box 9, the top of the inner box 2 is connected to the inside of the polymer box 9, the inside of the inner box 2 is fixedly connected with a cylindrical filter cylinder 3 and a cooling pipe 5 for circulating cold air, the top of the cooling pipe 5 is fixedly connected to the top of the inner wall of the filter cylinder 3, a preferred embodiment of the present application is to arrange the cooling pipe 5 inside the filter cylinder 3, of course, the cooling pipe 5 can also be arranged on the outside of the filter cylinder 3, one side of the inner box 2 is fixedly connected with a first air inlet pipe 31 for inputting natural gas, and the other side of the inner box 2 is fixedly connected with a second air inlet pipe 32 for outputting natural gas, wherein one end of the first air inlet pipe 31 is located outside the inner box 2, and the other end is located between the outside of the filter cylinder 3 and the inside of the inner box 2, one end of the second air inlet pipe 32 passes through the inside of the filter cylinder 3, and the other end extends to the outside of the inner box 2.

[0019] In an optional embodiment: the cooling pipe 5 is spirally arranged, so as to increase the cold air flowing through the cooling pipe 5 and allow it to effectively interact with the natural gas. A driving motor 6 is fixedly installed in the middle of the top of the inner wall of the filter cylinder 3. The bottom end of the driving motor 6 is fixedly connected to a rotating shaft 61. The rotating shaft 61 passes through the vertical center axis of the cooling pipe 5 and does not pass through the cooling pipe 5, so as not to affect its normal rotation. The rotating shaft 61 is fixedly connected to a scraper plate 63 matching the inner wall of the filter cylinder 3 through a connecting rod 62, and a cleaning brush 64 is fixedly connected to the side of the scraper plate 63 away from the cooling pipe 5.

[0020] Specifically, one side of the cleaning brush 64 can be in contact with the inner side of the filter cylinder 3, and a plurality of stirring rods 65 are fixedly connected to the side of the scraper plate 63 away from the cleaning brush 64. Specifically, the stirring rods 65 can be used to stir the natural gas introduced into the filter cylinder 3 so that it can better interact with the cold air flowing inside the cooling pipe 5.

[0021] In an optional embodiment: the port of the second air inlet pipe 32 located on the inner side of the filter cylinder 3 is fixedly connected to a filter screen plate, which can prevent condensed agglomerates inside the filter cylinder 3 from flowing into the second air inlet pipe 32. The bottom of the filter cylinder 3 is fixedly connected to a bottom pipe, and a valve is fixedly installed at the bottom end of the bottom pipe, so that the condensed agglomerates inside the filter cylinder 3 can flow out through the bottom pipe.

[0022] In an optional embodiment: the second air inlet pipe 32 on one of the inner boxes 2 is connected to the first air inlet pipe 31 on the other one through the first connecting pipe 7, so that the natural gas in the two inner boxes 2 can be connected, the top ends of the two cooling tubes 5 are fixedly connected with the first ventilation pipe 4, the first ventilation pipe 4 extends to the outside of the inner box 2 at one end away from the cooling pipe 5, and the bottom ends of the two cooling tubes 5 are connected through the second connecting pipe 8, and cold air is introduced into the cooling tube 5 through one of the first ventilation pipes 4, and the other end of the first ventilation pipe 4 is connected to the refrigeration device in the prior art, and the cold air in the two cooling tubes 5 is connected through the second connecting pipe 8, and the other first ventilation pipe 4 outputs cold air.

[0023] In an optional embodiment: a partition 91 is fixedly connected to the middle of the interior of the aggregate box 9, and the partition 91 divides the interior of the aggregate box 9 into two inner cavities. The bottom end of each inner box 2 passes through one cavity, and discharge blocks 90 are inserted at both ends of the aggregate box 9. Hydraulic cylinders 92 are fixedly installed on both sides of the partition 91. The side of the hydraulic cylinder 92 close to the discharge block 90 is connected to a push plate 93 through an output rod. Specifically, valves are installed on the first ventilation pipe 4, the first air inlet pipe 31 and the second air inlet pipe 32 to facilitate the control of the internal gas flow.

[0024] Specifically, when the natural gas is to be dehydrated and dehydrocarbonized, firstly, the cold air is passed to the cooling pipe 5 through the first ventilation pipe 4, and the temperature in the inner box 2 is gradually diffused and reduced from the cooling pipe 5. After a period of time, the natural gas is passed into the inner box 2 and located on the outside of the filter cylinder 3 through the first air inlet pipe 31. The natural gas is condensed by the low temperature to produce large particles of solid water compounds, which flow from the outside of the filter cylinder 3 into the aggregate box 9, so that most of the solid water compounds can be effectively prevented from entering the aggregate box 9 through the filter cylinder 3. The filter plate at the port of the second air inlet pipe 32 can prevent small particles and solid water compounds inside the filter cylinder 3 from entering the second air inlet pipe 32, so that small particles of solid water compounds and large particles of solid water compounds can be effectively prevented from clogging the pipeline and valve, avoiding manual dredging, saving time and effort;

[0025] When the solid water compound in the aggregate box 9 is taken out, it is only necessary to push the push plate 93 through the hydraulic cylinder 92 to drive the solid water compound to the vicinity of the discharge block 90 and then open the discharge block 90 to clean it.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A natural gas dehydration and dehydrocarbon control device, comprising two sets of inner boxes (2), the bottom of each inner box (2) being fixedly connected to a material collecting box (9), characterized in that: The inner box (2) is fixedly connected to a filter cylinder (3) and a cooling pipe (5); one side of the inner box (2) is fixedly connected to a first air intake pipe (31); the other side of the inner box (2) is fixedly connected to a second air intake pipe (32); one end of the first air intake pipe (31) is located outside the inner box (2), and the other end is located between the outer side of the filter cylinder (3) and the inner side of the inner box (2); one end of the second air intake pipe (32) passes through the inner side of the filter cylinder (3), and the other end extends to the outside of the inner box (2).

2. A natural gas dehydration and dehydrocarbon control device according to claim 1, characterized in that: The cooling tube (5) is arranged in a spiral shape, and a driving motor (6) is fixedly installed in the middle of the top of the inner wall of the filter cylinder (3). The bottom end of the driving motor (6) is fixedly connected to a rotating shaft (61). The rotating shaft (61) is fixedly connected to a scraper plate (63) matching the inner wall of the filter cylinder (3) through a connecting rod (62). The scraper plate (63) is fixedly connected to a cleaning brush (64) on the side away from the cooling tube (5). The scraper plate (63) is fixedly connected to a plurality of stirring rods (65) on the side away from the cleaning brush (64).

3. A natural gas dehydration and dehydrocarbon control device according to claim 2, characterized in that: The port of the second air inlet pipe (32) located inside the filter screen cylinder (3) is fixedly connected to a filter screen plate, and the bottom of the filter screen cylinder (3) is fixedly connected to a bottom pipe.

4. A natural gas dehydration and dehydrocarbon control device according to claim 3, characterized in that: The second air intake pipe (32) on one of the inner boxes (2) is connected to the first air intake pipe (31) on the other of the inner boxes via a first connecting pipe (7); the top ends of the two cooling pipes (5) are fixedly connected to a first ventilation pipe (4); one end of the first ventilation pipe (4) away from the cooling pipe (5) extends to the outside of the inner box (2); and the bottom ends of the two cooling pipes (5) are connected via a second connecting pipe (8).

5. A natural gas dehydration and dehydrocarbon control device according to claim 4, characterized in that: A partition (91) is fixedly connected in the middle of the material collection box (9), and the partition (91) divides the interior of the material collection box (9) into two inner cavities. Discharge blocks (90) are inserted at both ends of the material collection box (9), and hydraulic cylinders (92) are fixedly installed on both sides of the partition (91). The side of the hydraulic cylinder (92) close to the discharge block (90) is connected to a push plate (93) through an output rod.

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