An ultra-low concentration gas delivery pre-dehydration device

Abstract

The utility model belongs to the technical field of ultra -low concentration gas dehydration, specifically disclose a kind of ultra -low concentration gas dehydration device before conveying, including processing cylinder, the lower part of processing cylinder outer wall is connected with connecting pipe, the middle part of connecting pipe one side is connected with gas pipe, the shape of connecting pipe is arc type structure setting, the inner wall of connecting pipe both sides is connected with gas inlet pipe, two the gas inlet pipe one end is extended to the inside of processing cylinder, the both sides of processing cylinder are connected with cooling assembly, the inner wall of processing cylinder upper part is connected with dehydration assembly, the utility model is through the unique structure design, realized to ultra -low concentration gas efficient, stable dehydration treatment, not only guarantee that gas quality reaches conveying requirement, also has promoted gas utilization efficiency and conveying safety.

Description

Technical Field

[0001] This utility model belongs to the field of ultra-low concentration gas dehydration technology, specifically relating to an ultra-low concentration gas pre-transport dehydration device. Background Technology

[0002] Ultra-low concentration methane refers to coal mine methane with a methane concentration of less than 7%. According to industry data, this portion of methane cannot be directly used for power generation due to its insufficient concentration, but its total amount is enormous, accounting for more than 80% of my country's coal mine methane emissions. Ultra-low concentration methane mainly includes two types: one is methane extracted through buried pipes in goaf areas, with a methane concentration generally greater than 1%; the other is exhaust methane (exhaust methane), with a methane concentration below 0.75%.

[0003] The main reason for gas dehydration is to prevent incomplete combustion and safety hazards during the combustion process. Gas often contains a small amount of liquid oil droplets, especially in winter. These heavy components are prone to condensing into condensed oil. When gas enters the furnace, if combustion is incomplete, it will cause black smoke to come out of the chimney, or oil to drip from the burner to the bottom of the furnace and cause combustion. This can lead to local overheating of the furnace and even cause safety accidents.

[0004] In the process of coal mining, a large amount of low-concentration methane is generated, which contains a certain amount of water. If it is not dehydrated, the water may cause pipeline corrosion, reduce the calorific value of methane, affect the effective utilization of methane, and may even cause safety problems. Existing low-concentration methane dehydration devices have shortcomings such as low dehydration efficiency, complex equipment, and high operating costs, and cannot well meet the actual production needs. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a dehydration device for ultra-low concentration gas before transportation.

[0006] To achieve the above objectives, this utility model provides a dehydration device for ultra-low concentration gas before transportation, including a treatment cylinder. A connecting pipe is connected to the lower part of the outer wall of the treatment cylinder, and a gas supply pipe is connected to the middle of one side of the connecting pipe. The connecting pipe is arranged in an arc shape. Air inlet pipes are connected to both sides of the inner wall of the connecting pipe. One end of the two air inlet pipes extends through into the interior of the treatment cylinder. Cooling components are connected to both sides of the treatment cylinder, and a dehydration component is connected to the upper part of the inner wall of the treatment cylinder.

[0007] In the above technical solution, the cooling assembly further includes a cooling box, and there are two sets of cooling boxes. Each of the two cooling boxes is connected to a condenser tube on one side. One end of each of the two condenser tubes passes through the interior of the processing cylinder and extends into the interior of the cooling box. The condenser tubes are distributed in an S-shape inside the processing cylinder, which can increase the contact area and contact time between the condenser tubes and the gas. Both ends of the condenser tubes are located inside the cooling box.

[0008] In the above technical solution, the dehydration component further includes baffles, and the number of baffles is two sets. The two baffles are evenly provided with first through holes and second through holes. The upper end of the processing cylinder is connected to a connecting ring.

[0009] In the above technical solution, the diameter of the plurality of second through holes is larger than that of the first through hole, the inner wall of the second through hole is inclined, and a cone is embedded in the inner wall of the plurality of second through holes.

[0010] In the above technical solution, further, electric telescopic rods are connected to both sides of the upper end of the connecting ring, and the lower ends of the two electric telescopic rods pass through the connecting ring and the processing cylinder in sequence and extend into the interior of the processing cylinder.

[0011] In the above technical solution, furthermore, the lower ends of the two electric telescopic rods are connected to movable rings, and the lower ends of the movable rings are circumferentially connected to connecting rods.

[0012] In the above technical solution, furthermore, the lower ends of the multiple connecting rods are connected to the lower part of the outer wall with mounting rings, the inner walls of the two mounting rings are connected to fixing rings, and the inner walls of the two fixing rings are connected to water collection plates.

[0013] In the above technical solution, further, cleaning cotton is connected to the upper ends of the two water collection plates corresponding to multiple cones, the shape of the upper end of the outer wall of the multiple cleaning cotton is adapted to the shape of the inner wall of the cone, and a water outlet is opened in the middle of the upper ends of the two water collection plates, and the shape of the water collection plates is inclined.

[0014] In the above technical solution, one of the baffles is further provided with an air baffle above it, and the air baffle is arranged in a fan-shaped manner.

[0015] In the above technical solution, further, an adsorption plate is connected to the upper part of the inner wall of the processing cylinder, an air outlet pipe is connected to the middle of the upper end of the processing cylinder, and an air outlet valve is connected to the outer wall of the air outlet pipe.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] By using two sets of baffles in the dehydration assembly, along with first and second through holes of different diameters and a cone with an inclined inner wall, the flow path of the gas is greatly altered. When the gas passes through the baffles, its flow direction changes continuously, creating a baffle effect that makes it easier for water vapor to adhere to the inner walls of the baffles and the cone. At the same time, the larger diameter second through hole and the cone with an inclined inner wall can also create local airflow changes, further promoting the separation and adhesion of water vapor, thus effectively improving the dehydration effect of the gas.

[0018] By placing a fan-shaped baffle above one of the baffles, the flow direction of the gas can be changed, ensuring that the gas is fully treated throughout the dehydration process. This avoids over- or under-treatment in local areas, and comprehensively improves the working efficiency and dehydration quality of the dehydration unit.

[0019] The design, which uses an electric telescopic rod to move the water collection plate and cleaning cotton up and down, enables automated cleaning of moisture from the inner wall of the cone. The upper shape of the outer wall of the cleaning cotton is adapted to the shape of the inner wall of the cone, and it can effectively clean the attached water during the up and down movement. The water collection plate is set at an angle, so that the cleaned water can flow smoothly along the water collection plate to the outlet in the middle and be discharged from the treatment cylinder. This automated cleaning function not only improves the operating efficiency of the device, but also ensures the continuous and stable operation of the dewatering components. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model;

[0021] Figure 2 This is a cross-sectional view of the overall structure proposed in this utility model;

[0022] Figure 3 This is a schematic diagram of the installation structure of the baffle plate proposed in this utility model;

[0023] Figure 4 This is a schematic diagram of the structure for opening the first through hole proposed in this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the baffle plate proposed in this utility model.

[0025] In the diagram: 1. Processing cylinder; 2. Connecting pipe; 3. Air inlet pipe; 4. Cooling box; 5. Condenser pipe; 6. Baffle plate; 7. First through hole; 8. Second through hole; 9. Conical cylinder; 10. Connecting ring; 11. Electric telescopic rod; 12. Moving ring; 13. Connecting rod; 14. Mounting ring; 15. Fixing ring; 16. Water collection plate; 17. Cleaning cotton; 18. Water outlet; 19. Air baffle plate; 20. Adsorption plate; 21. Air outlet pipe. Detailed Implementation

[0026] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] like Figures 1-5 The image shows a dehydration device for ultra-low concentration gas before transportation. Example

[0028] The device includes a processing cylinder 1, a connecting pipe 2 connected to the lower part of the outer wall of the processing cylinder 1, an air supply pipe connected to the middle of one side of the connecting pipe 2, the connecting pipe 2 being of an arc-shaped structure, an air inlet pipe 3 connected to both sides of the inner wall of the connecting pipe 3, one end of the two air inlet pipes 3 extending through into the interior of the processing cylinder 1, a cooling assembly connected to both sides of the processing cylinder 1, a dehydration assembly connected to the upper part of the inner wall of the processing cylinder 1, and a water outlet pipe connected to the middle of the lower end of the processing cylinder 1.

[0029] The input gas is evenly dispersed into the two inlet pipes 3 through the connecting pipe 2, so that it can enter the processing cylinder 1 more efficiently. The arc-shaped connecting pipe 2 can reduce the resistance of gas flow, making the gas delivery smoother and allowing the gas to come into uniform contact with the two condenser pipes 5, improving the cooling effect of the gas. The dehydration component removes the moisture inside the gas. Example

[0030] The cooling assembly includes a cooling box 4, and there are two sets of cooling boxes 4. Each cooling box 4 is connected to a condenser pipe 5 on one side. One end of each condenser pipe 5 passes through the inside of the processing cylinder 1 and extends into the inside of the cooling box 4. The condenser pipe 5 is distributed in an S-shape inside the processing cylinder 1, which can increase the contact area and contact time between the condenser pipe and the gas. Both ends of the condenser pipe 5 are located inside the cooling box 4.

[0031] The two sets of cooling boxes 4 can ensure that the condenser tube 5 is always in a good cooling state and maintain a stable cooling effect. The condenser tube 5 is distributed in an S-shape inside the processing cylinder 1, which greatly increases the contact area with the gas, so that the water vapor in the gas can be liquefied more fully upon cooling. A circulation pump is connected to one side of the inner wall of the two sets of cooling boxes 4, and one end of the circulation pump is connected to one end of the condenser tube 5. Example

[0032] The dehydration assembly includes two sets of baffles 6. Each set of two baffles 6 has a first through hole 7 and a second through hole 8 evenly spaced. A connecting ring 10 is connected to the upper end of the processing cylinder 1. The diameter of the multiple second through holes 8 is larger than the diameter of the first through holes 7. The inner wall of the multiple second through holes 8 is inclined, and a conical cylinder 9 is embedded in the inner wall of each second through hole 8. Electric telescopic rods 11 are connected to both sides of the upper end of the connecting ring 10. The lower ends of the two electric telescopic rods 11 pass through the connecting ring 10 and the processing cylinder 1, extending into the interior of the processing cylinder 1. Moving rings 12 are connected to the lower ends of the two electric telescopic rods 11. Connecting rods 13 are circumferentially connected to the lower ends of the moving rings 12. 3. The lower end and the lower part of the outer wall are both connected to the mounting ring 14. The inner wall of the two mounting rings 14 is connected to the fixing ring 15. The inner wall of the two fixing rings 15 is connected to the water collection plate 16. The upper end of the two water collection plates 16 is connected to the cleaning cotton 17 corresponding to the multiple cones 9. The shape of the upper end of the outer wall of the multiple cleaning cotton 17 is adapted to the shape of the inner wall of the cone 9. The middle of the upper end of the two water collection plates 16 is provided with a water outlet 18. The shape of the water collection plate 16 is inclined. The baffle plate 19 is connected above one of the baffle plates 6. The baffle plate 19 is fan-shaped. The upper part of the inner wall of the treatment cylinder 1 is connected to the adsorption plate 20. The middle of the upper end of the treatment cylinder 1 is connected to the air outlet pipe 21. The outer wall of the air outlet pipe 21 is connected to the air outlet valve.

[0033] Two sets of baffles 6, in conjunction with first through holes 7 and second through holes 8 of different diameters, and a cone 9 with an inclined inner wall, can greatly change the flow path of gas and promote water vapor separation. The baffle plate 19 is fan-shaped, and its unique shape can change the flow direction of gas after passing through the first baffle plate 6, so that the gas can pass through the dehydration component more evenly and comprehensively improve the dehydration effect. The design of the electric telescopic rod 11 driving the water collection plate 16 and the cleaning cotton 17 realizes the function of automatically cleaning the moisture on the inner wall of the cone 9, improving the operating efficiency of the device. The upper end of the baffle plate 19 is provided with an opening that matches the connecting rod 13, ensuring that when the electric telescopic rod 11 drives the water collection plate 16 to move up and down, the connecting rod 13 can freely pass through the baffle plate 19 to avoid interference.

[0034] Working principle: When using the device, when it is necessary to dehydrate ultra-low concentration gas, the ultra-low concentration gas enters the interior of the connecting pipe 2 through the gas delivery pipe. The gas enters the processing cylinder 1 through the connecting pipe 2 and the two inlet pipes 3. The two inlet pipes 3 evenly disperse the gas, so that the gas can come into more full contact with the subsequent cooling and dehydration components.

[0035] The cooling components on both sides of the treatment cylinder 1 start to work. The coolant in the cooling tank 4 flows continuously in the condenser tube 5 through the circulation pump to maintain the low temperature. When the gas flows through the S-shaped condenser tube 5, the water vapor liquefies upon cooling and adheres to the surface of the condenser tube 5 or drips down the condenser tube 5 to the bottom of the treatment cylinder 1, thereby initially removing some of the moisture in the gas.

[0036] After initial cooling and dehydration, the gas continues to rise and enters the dehydration assembly. The dehydration assembly mainly consists of two sets of baffles 6. The baffles 6 have a first through hole 7 and a second through hole 8 evenly distributed on them. The diameter of the second through hole 8 is larger than that of the first through hole 7. The inner wall of the second through hole 8 is inclined and has a cone 9 embedded in it. When the gas passes through the baffles 6, its flow direction will change continuously. This baffle effect makes it easier for water vapor in the gas to adhere to the inner wall of the baffles 6 and the cone 9. The larger diameter of the second through hole 8 and the inclined inner wall of the cone 9 can also cause local airflow changes when the gas passes through, further promoting the separation and adhesion of water vapor.

[0037] One of the baffles 6 is connected above a fan-shaped baffle 19. The baffle 19 changes the flow direction of the gas, allowing the gas to pass through the dehydration component more evenly and improving the dehydration effect.

[0038] As the dehydration process proceeds, a large amount of liquid water will adhere to the inner walls of the baffle plate 6 and the cone 9. At this time, the electric telescopic rod 11 is activated, which drives the lower moving ring 12 to move up and down. The moving ring 12 drives the water collecting plate 16 to move up and down through the connecting rod 13, the mounting ring 14, and the fixing ring 15. The cleaning cotton 17 connected to the cone 9 on the water collecting plate 16 has an upper outer wall shape that matches the inner wall shape of the cone 9. During the up and down movement, the cleaning cotton 17 can effectively clean the water adhering to the inner wall of the cone 9. The water collecting plate 16 drives the cone 9 to move upward, and the cleaning cotton 17 is squeezed inside the cone 9. Since the water collecting plate 16 is set at an inclination, the cleaned water will flow down the water collecting plate 16 to the outlet 18 in the middle and finally be discharged into the treatment cylinder 1. The water inside the treatment cylinder 1 is discharged through the outlet pipe.

[0039] After cooling and dehydration, the gas continues to rise and reaches the adsorption plate 20 on the upper part of the inner wall of the treatment cylinder 1. The adsorption plate 20 will further adsorb the residual moisture in the gas to ensure that the moisture content of the gas meets the transportation requirements. Finally, the gas outlet valve on the gas outlet pipe 21 is opened, and the ultra-low concentration gas that has been fully dehydrated is discharged from the treatment cylinder 1 through the gas outlet pipe 21 and enters the subsequent transportation process.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A dehydration device for ultra-low concentration gas before transportation, comprising a treatment cylinder (1), characterized in that, The lower part of the outer wall of the processing cylinder (1) is connected to a connecting pipe (2), and a gas supply pipe is connected to the middle of one side of the connecting pipe (2). The connecting pipe (2) is arranged in an arc shape. Both sides of the inner wall of the connecting pipe (2) are connected to air inlet pipes (3). One end of the two air inlet pipes (3) extends through into the interior of the processing cylinder (1). Both sides of the processing cylinder (1) are connected to cooling components. The upper part of the inner wall of the processing cylinder (1) is connected to a dehydration component. The dehydration assembly includes baffles (6), and there are two sets of baffles (6). The two baffles (6) are evenly provided with first through holes (7) and second through holes (8). The upper end of the processing cylinder (1) is connected to a connecting ring (10). The diameter of the multiple second through holes (8) is larger than the diameter of the first through holes (7). The inner wall of the second through holes (8) is inclined. The inner wall of the multiple second through holes (8) is embedded with a cone (9). The upper ends of the connecting ring (10) are connected to electric telescopic rods (11). The lower ends of the two electric telescopic rods (11) pass through the connecting ring (10) and the processing cylinder (1) in sequence and extend into the interior of the processing cylinder (1). The lower ends of the two electric telescopic rods (11) are connected to moving rings (12), and the lower ends of the moving rings (12) are circumferentially connected to connecting rods (13). The lower ends of the multiple connecting rods (13) are connected to the lower part of the outer wall with mounting rings (14). The inner walls of the two mounting rings (14) are connected to fixing rings (15). The inner walls of the two fixing rings (15) are connected to water collection plates (16). The upper ends of the two water collection plates (16) are respectively connected to cleaning cotton (17) at multiple cones (9). The shape of the upper end of the outer wall of the multiple cleaning cotton (17) is adapted to the shape of the inner wall of the cone (9). The middle part of the upper end of the two water collection plates (16) is provided with a water outlet (18). The shape of the water collection plate (16) is inclined. One of the baffle plates (6) is connected to an air baffle plate (19). The air baffle plate (19) is fan-shaped.

2. The ultra-low concentration gas pre-transport dehydration device according to claim 1, characterized in that, The cooling assembly includes a cooling box (4), and there are two sets of cooling boxes (4). Each of the two cooling boxes (4) is connected to a condenser tube (5) on one side. One end of each of the two condenser tubes (5) passes through the interior of the processing cylinder (1) and extends into the interior of the cooling box (4). The condenser tubes (5) are distributed in an S-shape inside the processing cylinder (1), which can increase the contact area and contact time between the condenser tubes and the gas. Both ends of the condenser tubes (5) are located inside the cooling box (4).

3. The ultra-low concentration gas pre-transport dehydration device according to claim 1, characterized in that, An adsorption plate (20) is connected to the upper part of the inner wall of the treatment cylinder (1), and an air outlet pipe (21) is connected to the middle of the upper end of the treatment cylinder (1). An air outlet valve is connected to the outer wall of the air outlet pipe (21).

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