Natural gas dehydrating and drying device

Abstract

The utility model discloses a natural gas dewatering and drying device which comprises a primary dewatering chamber and a secondary dewatering chamber, a plurality of isolation plates are fixedly connected in the secondary dewatering chamber, guiding through holes are formed in the positions, close to the edges, of the top ends of the isolation plates in a penetrating mode, and the guiding through holes are distributed in a staggered mode. A mounting through hole is formed in the position, located between any two adjacent isolation plates, of one side of the secondary dehydration chamber in a penetrating mode, and honeycomb-shaped adsorption plates are inserted into the multiple mounting through holes. According to the utility model, flowing natural gas is isolated through the isolation plates, so that the natural gas flows in the plurality of isolation plates under the action of the guide through holes, the natural gas sequentially passes through the plurality of honeycomb-shaped adsorption plates, the residence time of the natural gas in the honeycomb-shaped adsorption plates is prolonged, and the natural gas is fully dehydrated; the utilization rate of the honeycomb-shaped adsorption plate can be increased, and the dehydration effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of natural gas treatment, in particular to a natural gas dehydration and drying device. Background Technique

[0002] Natural gas refers to all gases that exist naturally in nature, including gases formed by various natural processes in the atmosphere, hydrosphere and lithosphere. In a narrow sense, it refers to a mixture of hydrocarbon and non-hydrocarbon gases naturally stored in strata. It is one of the important natural resources. Generally, after natural gas is mined, it needs to be dehydrated and dried to prevent water vapor in the natural gas from entering the subsequent treatment process and avoid impurities freezing and blocking equipment and pipelines at low temperatures.

[0003] In the prior art, as disclosed in Chinese Patent CN206127236U, "a natural gas dehydration device", the clean gas outlet of the first filter separator is connected to the inlet of the molecular sieve dehydration tower, the outlet of the molecular sieve dehydration tower is connected to the external transmission dry gas pipeline, one end of the heating inlet pipe is connected to the external transmission dry gas pipeline, and the other end is connected to an opening of the molecular sieve dehydration tower; one end of the cold blow inlet pipe is connected to the external transmission dry gas pipeline, and the other end is connected to an opening of the molecular sieve dehydration tower.

[0004] At present, most dehydration and drying devices that perform dehydration treatment by the adsorption method adsorb moisture from natural gas by passing through an adsorption plate. Due to the limited thickness of the adsorption plate, the residence time of natural gas in the adsorption plate is short. After the natural gas passes through the adsorption plate, there is still a small amount of moisture that has not been completely adsorbed, resulting in an unsatisfactory adsorption effect and a low adsorption efficiency. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a natural gas dehydration and drying device to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a natural gas dehydration and drying device, including a primary dehydration chamber and a secondary dehydration chamber. A plurality of partition plates are fixedly connected inside the secondary dehydration chamber. Guide through holes are formed through the top ends of the plurality of partition plates and near the edge positions, and the plurality of guide through holes are staggered. An installation through hole is formed through the secondary dehydration chamber and at a position between any two adjacent partition plates. Honeycomb adsorption plates are inserted into the plurality of installation through holes.

[0007] As a further preference of this technical solution, a shunt pipe is arranged inside the primary dehydration chamber and near the top end. A plurality of spray heads are fixedly communicated with the outer surface of the shunt pipe. A storage tank is fixedly connected to one side of the primary dehydration chamber. A liquid extraction pump is fixedly communicated with the outer surface of the storage tank. The output end of the liquid extraction pump is fixedly communicated with the outer surface of the shunt pipe.

[0008] As a further preference of this technical solution, support plates are fixedly connected to both inner side walls of the primary dehydration chamber, and the tops of the two support plates are fixedly connected to the outer surface of the shunt pipe.

[0009] As a further preference of this technical solution, a collection hopper is fixedly communicated with the inner bottom surface of the primary dehydration chamber, and a collection chamber is fixedly communicated with the bottom end of the primary dehydration chamber.

[0010] As a further preference of this technical solution, communication chambers are fixedly communicated with the tops of both the primary dehydration chamber and the secondary dehydration chamber, a communication pipe is fixedly communicated between the two communication chambers, and a heating pipe is fixedly connected to the inner surface of the communication pipe.

[0011] As a further preference of this technical solution, handles are fixedly connected to one sides of multiple honeycomb adsorption plates, an observation window is fixedly connected to one side of the primary dehydration chamber, an air inlet pipe is fixedly communicated with one side of the primary dehydration chamber and near the lower edge position, and an exhaust pipe is fixedly communicated with one side of the secondary dehydration chamber and near the lower edge position.

[0012] The utility model provides a natural gas dehydration and drying device, which has the following beneficial effects:

[0013] (1) The utility model isolates the flowing natural gas through the isolation plate, enables the natural gas to flow in multiple isolation plates under the action of the guiding through holes, enables the natural gas to sequentially pass through multiple honeycomb adsorption plates, increases the residence time of the natural gas in the honeycomb adsorption plates, realizes the full dehydration of the natural gas, and can improve the utilization rate of the honeycomb adsorption plates and the dehydration effect.

[0014] (2) The utility model pumps the monoethanolamine solution in the storage tank into the spray heads in the shunt pipe through the liquid extraction pump, enables the monoethanolamine solution to fully contact with the natural gas, adsorbs most of the water in the natural gas, reduces the one-time adsorption amount of the honeycomb adsorption plates, increases the single use duration of the honeycomb adsorption plates, and can further improve the dehydration effect through two-stage dehydration. Description of the Drawings

[0015] Figure 1 It is the first structural schematic diagram of the whole utility model;

[0016] Figure 2 It is the second structural schematic diagram of the whole utility model;

[0017] Figure 3 It is the schematic diagram of the structure for taking out the honeycomb adsorption plate of the utility model;

[0018] Figure 4 It is the schematic diagram of the internal structures of the primary dehydration chamber and the secondary dehydration chamber of the utility model.

[0019] In the figure: 1. Primary dehydration chamber; 2. Secondary dehydration chamber; 3. Shunt pipe; 4. Spray head; 5. Support plate; 6. Collection hopper; 7. Collection chamber; 8. Communication chamber; 9. Communication pipe; 10. Heating pipe; 11. Installation through-hole; 12. Partition plate; 13. Guide through-hole; 14. Honeycomb adsorption plate; 15. Storage tank; 16. Liquid extraction pump; 17. Intake pipe; 18. Exhaust pipe; 19. Observation window; 20. Handle. Specific implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] The present invention provides a technical solution: As Figures 1-4 shown, in this embodiment, a natural gas dehydration and drying device includes a primary dehydration chamber 1 and a secondary dehydration chamber 2. A plurality of partition plates 12 are fixedly connected inside the secondary dehydration chamber 2. Guide through-holes 13 are formed through the tops of the plurality of partition plates 12 and are located near the edge positions. The plurality of guide through-holes 13 are staggered. An installation through-hole 11 is formed through one side of the secondary dehydration chamber 2 and is located between any two adjacent partition plates 12. A honeycomb adsorption plate 14 is inserted into each of the plurality of installation through-holes 11. Among them, by setting the partition plate 12, the natural gas can be blocked so that the natural gas flows along a specified route. By setting the guide through-hole 13, the natural gas can be guided. By setting the honeycomb adsorption plate 14, the moisture in the natural gas can be adsorbed.

[0022] As Figure 3 and Figure 4 shown, a shunt pipe 3 is arranged inside the primary dehydration chamber 1 and near the top position. A plurality of spray heads 4 are fixedly communicated with the outer surface of the shunt pipe 3. A storage tank 15 is fixedly connected to one side of the primary dehydration chamber 1. A liquid extraction pump 16 is fixedly communicated with the outer surface of the storage tank 15. The output end of the liquid extraction pump 16 is fixedly communicated with the outer surface of the shunt pipe 3. By setting the spray head 4, the amine solution can be sprayed into the primary dehydration chamber 1 in the form of water droplets, so that the natural gas can fully contact with the amine solution.

[0023] As Figure 4 shown, support plates 5 are fixedly connected to both inner side walls of the primary dehydration chamber 1. The tops of the two support plates 5 are fixedly connected to the outer surface of the shunt pipe 3. By setting the support plates 5, the shunt pipe 3 can be supported to improve stability.

[0024] As Figure 4 shown, a collection hopper 6 is fixedly communicated with the inner bottom surface of the primary dehydration chamber 1. The bottom end of the primary dehydration chamber 1 is fixedly communicated with a collection chamber 7. By setting the collection hopper 6, the amine solution can be quickly collected to prevent it from remaining in the primary dehydration chamber 1.

[0025] As Figure 1 、 Figure 2 and Figure 4 shown, a communication chamber 8 is fixedly connected to the top ends of both the primary dehydration chamber 1 and the secondary dehydration chamber 2. A communication pipe 9 is fixedly connected between the two communication chambers 8. A heating pipe 10 is fixedly connected to the inner surface of the communication pipe 9. By providing the heating pipe 10, the natural gas flowing through can be heated, so that after entering the secondary dehydration chamber 2, the moisture can quickly combine with the honeycomb adsorption plate 14, improving the adsorption efficiency.

[0026] As Figure 3 and Figure 4 shown, a handle 20 is fixedly connected to one side of each of the plurality of honeycomb adsorption plates 14. An observation window 19 is fixedly connected to one side of the primary dehydration chamber 1. An air inlet pipe 17 is fixedly connected to one side of the primary dehydration chamber 1 and near the lower edge position. An exhaust pipe 18 is fixedly connected to one side of the secondary dehydration chamber 2 and near the lower edge position. By providing the handle 20, it is convenient to take out the honeycomb adsorption plate 14, and there is an interference fit between the honeycomb adsorption plate 14 and the partition plate 12, improving the sealing performance.

[0027] The present utility model provides a natural gas dehydration and drying device, and the specific working principle is as follows:

[0028] Start the liquid extraction pump 16 to pump the amine solution in the storage tank 15 into the spray heads 4 in the shunt pipe 3. The natural gas enters the primary dehydration chamber 1 through the air inlet pipe 17. The amine solution is sprayed into the primary dehydration chamber 1 in the form of water droplets under the action of the spray heads 4, so that the natural gas fully contacts with the amine solution, and the water in the natural gas is separated out. Then the natural gas enters the communication pipe 9 through the communication chamber 8 and enters the secondary dehydration chamber 2 after being heated by the heating pipe 10. The partition plate 12 isolates the flowing natural gas, so that the natural gas flows in the plurality of partition plates 12 under the action of the guiding through holes 13, so that the natural gas sequentially passes through the plurality of honeycomb adsorption plates 14, increasing the residence time of the natural gas in the honeycomb adsorption plates 14, and performing secondary dehydration on the natural gas. After the dehydration is completed, the natural gas enters the next process through the exhaust pipe 18 for subsequent treatment.

[0029] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A natural gas dehydration and drying device, comprising a primary dehydration chamber (1) and a secondary dehydration chamber (2), characterized in that: A plurality of isolation plates (12) are fixedly connected inside the secondary dehydration chamber (2), and guide through holes (13) are provided through the tops of the plurality of isolation plates (12) and near the edges, and the plurality of guide through holes (13) are staggeredly distributed. A mounting through hole (11) is provided through one side of the secondary dehydration chamber (2) and between any two adjacent isolation plates (12), and a honeycomb adsorption plate (14) is inserted into the plurality of mounting through holes (11).

2. A natural gas dehydration and drying device according to claim 1, characterized in that: A shunt pipe (3) is arranged inside the primary dehydration chamber (1) and near the top end; a plurality of spray heads (4) are fixedly connected to the outer surface of the shunt pipe (3); a material storage box (15) is fixedly connected to one side of the primary dehydration chamber (1); a liquid pump (16) is fixedly connected to the outer surface of the material storage box (15); and an output end of the liquid pump (16) is fixedly connected to the outer surface of the shunt pipe (3).

3. A natural gas dehydration and drying device according to claim 2, characterized in that: Support plates (5) are fixedly connected to both side walls inside the primary dehydration chamber (1), and the top ends of the two support plates (5) are fixedly connected to the outer surface of the diversion pipe (3).

4. A natural gas dehydration and drying device according to claim 3, characterized in that: The inner bottom surface of the primary dehydration chamber (1) is fixedly connected to a collecting bucket (6), and the bottom end of the primary dehydration chamber (1) is fixedly connected to a collecting chamber (7).

5. A natural gas dehydration and drying device according to claim 1, characterized in that: The tops of the primary dehydration chamber (1) and the secondary dehydration chamber (2) are both fixedly connected with a communication chamber (8), a communication pipe (9) is fixedly connected between the two communication chambers (8), and a heating pipe (10) is fixedly connected to the inner surface of the communication pipe (9).

6. A natural gas dehydration and drying device according to claim 1, characterized in that: A handle (20) is fixedly connected to one side of each of the plurality of honeycomb adsorption plates (14); an observation window (19) is fixedly connected to one side of the primary dehydration chamber (1); an air inlet pipe (17) is fixedly connected to one side of the primary dehydration chamber (1) near the lower edge; and an exhaust pipe (18) is fixedly connected to one side of the secondary dehydration chamber (2) near the lower edge.

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