A natural gas dehumidification device

Abstract

This utility model discloses a natural gas dehumidification device, relating to the field of natural gas dehumidification technology. It includes a liquefaction tank, a drying chamber, two inlet pipes, and an outlet pipe. One end of each of the two inlet pipes is fixedly connected to the left and right ends of the liquefaction tank, respectively. The right end of the right inlet pipe is fixedly connected to the bottom of the left end of the drying chamber. The bottom of the outlet pipe is fixedly connected to the top of the drying chamber. Exhaust valves are provided on the outer walls of both inlet pipes. A cooling mechanism is provided at the front end of the liquefaction tank, and a collection assembly is provided at the bottom of the liquefaction tank. A drying assembly is provided on the upper side of the front end of the drying chamber. This utility model uses the cooling mechanism to circulate coolant through a spiral tube, increasing the heat exchange area and ensuring uniform cooling of the inlet pipes. This liquefies the water vapor in the natural gas within the inlet pipes, and then the remaining water vapor is removed by the drying assembly.

Description

Technical Field

[0001] This utility model relates to the field of natural gas dehumidification technology, specifically to a natural gas dehumidification device. Background Technology

[0002] Natural gas refers to all naturally occurring gases, including gases formed by various natural processes in the atmosphere, hydrosphere, and lithosphere (including oilfield gas, gas field gas, mud volcano gas, coalbed methane, and biogenic gas). Natural gas is an important resource. During extraction, natural gas contains a certain amount of water vapor. During long-distance pipeline transportation, with temperature changes, this water vapor may condense into a liquid phase, causing pipeline corrosion, affecting the purity of the natural gas, and reducing its usability. Therefore, natural gas dehydration is particularly important. The existing technologies have the following problems:

[0003] Natural gas needs to be dehumidified before it can be put into use. Existing dehumidification devices have a simple structure, which results in poor dehumidification effect on natural gas and affects its processing and use. Secondly, in the dehumidification of natural gas, cloth bags containing desiccant are usually used to adsorb the moisture in the gas. After long-term use, the adsorption effect of the desiccant cloth bags is poor and it is inconvenient to replace them. Utility Model Content

[0004] This invention provides a natural gas dehumidification device to solve the problems existing in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A natural gas dehumidification device includes a liquefaction tank, a drying chamber, two inlet pipes, and an outlet pipe. One end of each of the two inlet pipes is fixedly connected to the left and right ends of the liquefaction tank, respectively. The right end of the right inlet pipe is fixedly connected to the bottom of the left end of the drying chamber. The bottom of the outlet pipe is fixedly connected to the top of the drying chamber. An exhaust valve is provided on the outer wall of each of the two inlet pipes. A cooling mechanism is provided at the front end of the liquefaction tank, and the rear side of the outer wall of the cooling mechanism extends into the interior of the liquefaction tank. A collection component is provided at the bottom of the liquefaction tank. A drying component is provided on the upper side of the front end of the drying chamber, and the rear side of the outer wall of the drying component extends into the interior of the drying chamber.

[0007] A further improvement of this utility model's technical solution is that: the cooling mechanism includes a cooling box, a water pump, a spiral tube, a return pipe, a connecting pipe, and a cooling plate; the bottom of the water pump is fixedly connected to the top of the cooling box; the output port of the water pump is fixedly connected to one end of the connecting pipe; the output pipe of the water pump extends into the interior of the cooling box; the right end of the spiral tube is fixedly connected to one end of the connecting pipe; the left end of the spiral tube is fixedly connected to one end of the return pipe; the other end of the return pipe is fixedly connected to the bottom of the outer wall of the cooling box; the outer side of the cooling plate is fixedly connected to the front end of the cooling box; and the output end of the cooling plate extends into the inner wall of the cooling box.

[0008] A further improvement of this utility model is that the interiors of the cooling box, spiral tube, return pipe and connecting pipe are interconnected, the rear end of the cooling box is fixedly connected to the front end of the liquefaction tank, and both ends of the outer wall of the spiral tube penetrate to the front end of the liquefaction tank and are fixedly connected to each other.

[0009] A further improvement of this utility model is that: the collection assembly includes a collection box, four fixing bolts and a frame; the inner wall of the frame is fixedly connected to the top of the outer wall of the collection box; two vertically penetrating positioning holes are respectively opened on the front and rear sides of the outer wall of the frame; a vertically penetrating drain outlet is opened on the middle side of the bottom of the liquefied tank; two threaded grooves adapted to the fixing bolts are respectively opened on the front and rear sides of the bottom of the liquefied tank near the drain outlet; the outer wall of the fixing bolt passes through the positioning hole and is threadedly connected to the inner wall of the threaded groove; and a sealing strip is provided on the outer side of the top of the frame near the positioning hole.

[0010] A further improvement of this utility model's technical solution is that the drying assembly includes a cover plate, several mounting frames, several drying bags, several mounting plates, several insert rods, a sealing gasket, two L-shaped plates, two screws, and two knobs. The outer wall of the drying bag is fixedly connected to the inner wall of the mounting frame. The top of the mounting frame, near the front side of the drying bag, has vertically penetrating mounting holes. The front ends of several mounting plates are equidistantly arrayed and fixedly connected to the rear end of the cover plate. The bottoms of the two insert rods are fixedly connected to the left and right sides of the top of the mounting plate. The surface of the sealing gasket is fixedly connected to the outer side of the back of the cover plate near the several mounting plates. One end of each of the two L-shaped plates is fixedly connected to the middle side of the left and right ends of the cover plate. The rear sides of the opposite faces of the two L-shaped plates each have horizontally penetrating insertion holes. One end of the screw is fixedly connected to the middle of the knob.

[0011] A further improvement of this utility model is that the outer side of the mounting frame is inserted into the outer wall of the plug rod through mounting holes.

[0012] A further improvement of this utility model is that: an internal and external through mounting port is provided on the upper side of the front end of the drying box; a groove matching the sealing gasket is provided on the outer side of the front end of the drying box near the mounting port; several trays adapted to the mounting frame are fixedly connected in an equidistant array at the left and right ends of the inner wall of the drying box; positioning blocks are fixedly connected to the front sides of the left and right ends of the drying box respectively; and threaded holes matching the screw are provided in the middle of the two positioning blocks.

[0013] A further improvement of this utility model is that the bottom of the mounting frame overlaps with the surface of the tray, and the outer wall of the screw passes through the insertion hole and is threadedly connected to the inner wall of the threaded hole.

[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0015] 1. This utility model provides a natural gas dehumidification device, which adopts the cooperation between a liquefaction tank, a drying tank, a cooling mechanism, and a drying component. By controlling the cooling mechanism, the coolant is circulated through a spiral tube to increase the heat exchange area and ensure uniform cooling of the intake pipe, thereby liquefying the water vapor in the natural gas in the intake pipe. Then, the remaining water vapor in the natural gas is removed by the drying component. This solves the problem that natural gas needs to be dehumidified before it is put into use. Existing dehumidification devices have a simple structure, resulting in poor dehumidification effect on natural gas and affecting the processing and use of natural gas. This invention achieves the beneficial effect of improving the dehumidification of natural gas.

[0016] 2. This utility model provides a natural gas dehumidification device, which uses a combination of a drying box and a drying component. The mounting frame is inserted into the mounting hole on the insertion rod, and the drying component is installed in the drying box by means of threaded fixation. When replacing the drying bag, simply remove the drying component from the drying box, lift the mounting frame upwards, and replace the drying bag together. This solves the problem that in natural gas dehumidification, the drying bag containing desiccant is usually used to absorb moisture in the gas. After long-term use, the absorption effect of the drying bag becomes poor, and it is inconvenient to replace it. This achieves the beneficial effect of conveniently disassembling and assembling the drying component and replacing the drying bag. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the natural gas dehumidification device of this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the cooling mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the installation of the three-dimensional structure of the collection component of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the drying component of this utility model;

[0021] Figure 5 This is a three-dimensional structural diagram of the drying oven of this utility model.

[0022] In the diagram: 1. Liquefaction tank; 101. Drain outlet; 102. Threaded groove; 2. Drying box; 201. Mounting port; 202. Groove; 21. Support plate; 22. Positioning block; 220. Threaded hole; 3. Air inlet pipe; 4. Air outlet pipe; 5. Exhaust valve; 6. Cooling mechanism; 61. Cooling box; 62. Water pump; 63. Spiral tube; 64. Return pipe; 65. Connecting pipe; 66. Refrigeration element; 7. Collection assembly; 71. Collection box; 72. Fixing bolt; 73. Frame; 730. Positioning hole; 8. Drying assembly; 81. Cover plate; 82. Mounting frame; 820. Mounting hole; 83. Drying bag; 84. Mounting plate; 85. Insert rod; 86. Sealing gasket; 87. L-shaped plate; 870. Insertion hole; 88. Screw; 89. Knob. Detailed Implementation

[0023] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments:

[0024] like Figure 1 As shown, this utility model provides a natural gas dehumidification device, including a liquefaction tank 1, a drying chamber 2, two air inlet pipes 3 and an air outlet pipe 4. One end of each of the two air inlet pipes 3 is fixedly connected to the left and right ends of the liquefaction tank 1, the right end of the right air inlet pipe 3 is fixedly connected to the bottom of the left end of the drying chamber 2, and the bottom of the air outlet pipe 4 is fixedly connected to the top of the drying chamber 2. Both air inlet pipes 3 are provided with exhaust valves 5 on their outer walls. A cooling mechanism 6 is provided at the front end of the liquefaction tank 1, and the rear side of the outer wall of the cooling mechanism 6 extends into the interior of the liquefaction tank 1. A collection component 7 is provided at the bottom of the liquefaction tank 1. A drying component 8 is provided on the upper side of the front end of the drying chamber 2, and the rear side of the outer wall of the drying component 8 extends into the interior of the drying chamber 2.

[0025] The system includes a liquefaction tank 1, a drying tank 2, an inlet pipe 3, an outlet pipe 4, an exhaust valve 5, a cooling mechanism 6, a collection component 7, and a drying component 8. Through the coordinated operation of the cooling mechanism 6 and the drying component 8, the cooling mechanism 6 liquefies the water vapor in the natural gas, and then the drying component 8 adsorbs the remaining water vapor in the natural gas, thereby improving the dehumidification effect of the natural gas. At the same time, the drying bag 83 installed in the drying component 8 can be replaced by removing the drying component 8.

[0026] like Figure 2As shown, this utility model provides a technical solution for a natural gas dehumidification device: the cooling mechanism 6 includes a cooling box 61, a water pump 62, a spiral tube 63, a return pipe 64, a connecting pipe 65, and a cooling plate 66. The bottom of the water pump 62 is fixedly connected to the top of the cooling box 61, and the output port of the water pump 62 is fixedly connected to one end of the connecting pipe 65. The output pipe of the water pump 62 extends into the interior of the cooling box 61. The right end of the spiral tube 63 is fixedly connected to one end of the connecting pipe 65. The spiral tube 63 structure enhances the flow of coolant, increases the heat exchange area, and significantly improves the heat transfer efficiency, thereby improving the dehumidification effect of the natural gas. Water vapor in natural gas is cooled and liquefied. The left end of the spiral tube 63 is fixedly connected to one end of the return pipe 64, and the other end of the return pipe 64 is fixedly connected to the bottom of the outer wall of the cooling box 61. The external part of the cooling plate 66 is fixedly connected to the front end of the cooling box 61, and the output end of the cooling plate 66 extends through to the inner wall of the cooling box 61. The interiors of the cooling box 61, the spiral tube 63, the return pipe 64, and the connecting pipe 65 are interconnected. The rear end of the cooling box 61 is fixedly connected to the front end of the liquefaction tank 1. Both ends of the outer wall of the spiral tube 63 extend through to the front end of the liquefaction tank 1 and are fixedly connected to each other.

[0027] like Figure 3 As shown, this utility model provides a technical solution for a natural gas dehumidification device: the collection component 7 includes a collection box 71, four fixing bolts 72, and a frame 73. The inner wall of the frame 73 is fixedly connected to the top of the outer wall of the collection box 71. Two vertically penetrating positioning holes 730 are respectively opened on the front and rear sides of the outer wall of the frame 73. A drain outlet 101 penetrating inside and outside is opened on the middle side of the bottom of the liquefied gas tank 1. Two threaded grooves 102 adapted to the fixing bolts 72 are respectively opened on the front and rear sides of the bottom of the liquefied gas tank 1 near the drain outlet 101. The outer wall of the fixing bolt 72 passes through the positioning hole 730 and is threadedly connected to the inner wall of the threaded groove 102. The collection box 71 is fixed to the bottom of the liquefied gas tank 1 by the fixing bolts 72, so that the water vapor in the natural gas in the liquefied gas tank 1 is liquefied into water droplets and drips into the collection box 71 through the drain outlet 101 for collection. A sealing strip is provided on the outer side of the top of the frame 73 near the positioning hole 730 to ensure the sealing of the connection between the collection box 71 and the liquefied gas tank 1 and prevent natural gas leakage.

[0028] like Figure 4As shown, this utility model provides a technical solution for a natural gas dehumidification device: the drying component 8 includes a cover plate 81, several mounting frames 82, several drying bags 83, several mounting plates 84, several insert rods 85, sealing gaskets 86, two L-shaped plates 87, two screws 88, and two knobs 89. The outer wall of the drying bags 83 is fixedly connected to the inner wall of the mounting frames 82. Multiple layers of drying bags 83 are provided to ensure complete adsorption of residual water vapor in the natural gas. The top of the mounting frames 82, near the front side of the drying bags 83, has vertically penetrating mounting holes 820. The front ends of several mounting plates 84 are equidistantly arrayed and fixedly connected to the cover plate. At the rear end of 81, the bottom of two insert rods 85 are fixedly connected to the left and right sides of the top of the mounting plate 84. The surface of the sealing gasket 86 is fixedly connected to the back of the cover plate 81 near the outer side of several mounting plates 84. One end of two L-shaped plates 87 is fixedly connected to the middle side of the left and right ends of the cover plate 81 respectively. The rear side of the opposite face of the two L-shaped plates 87 is provided with a through-hole 870. One end of the screw 88 is fixedly connected to the middle of the knob 89. The outside of the mounting frame 82 is inserted into the outer wall of the insert rod 85 through the mounting hole 820. The mounting frame 82 is inserted into the insert rod 85 from top to bottom through the mounting hole 820, which facilitates the replacement of the mounting frame 82.

[0029] like Figure 5 As shown, this utility model provides a technical solution for a natural gas dehumidification device: An internally and externally penetrating installation port 201 is provided on the upper side of the front end of the drying chamber 2. A groove 202 matching a sealing gasket 86 is provided on the outer side of the front end of the drying chamber 2 near the installation port 201. The sealing gasket 86 is pressed and fitted into the groove 202 to prevent natural gas leakage from the drying chamber 2. Several support plates 21 adapted to the mounting frame 82 are fixedly connected in an equidistant array at both ends of the inner wall of the drying chamber 2. The mounting frame 82 is then inserted into the drying chamber 2. The support plate 21 serves to support the bottom of the mounting frame 82. Positioning blocks 22 are fixedly connected to the front sides of the left and right ends of the drying box 2. The center of each positioning block 22 is provided with a threaded hole 220 that matches the screw 88. The bottom of the mounting frame 82 overlaps with the surface of the support plate 21. The outer wall of the screw 88 passes through the insertion hole 870 and is threaded to the inner wall of the threaded hole 220, so that the screw 88 passes through the insertion hole 870 and is screwed into the threaded hole 220, which facilitates the installation and removal of the drying box 2 and the drying assembly 8.

[0030] The working principle of this natural gas dehumidification device will be explained in detail below.

[0031] like Figures 1-5As shown, during natural gas extraction, firstly, the collection box 71 is installed at the bottom of the liquefaction tank 1 via the frame 73, aligning the positioning hole 730 with the threaded groove 102. A fixing bolt 72 is then screwed into the threaded groove 102 from bottom to top through the positioning hole 730 for fixation. Next, the mounting frame 82 of the desiccant drying bag 83 is inserted from top to bottom onto the insertion rod 85 through the mounting hole 820. Then, multiple mounting frames 82 are inserted into the drying box 2 from front to back along the mounting opening 201, so that the bottom of the mounting frame 82 overlaps the surface of the support plate 21, and the outer wall of the sealing gasket 86 is pressed against the inner wall of the groove 202, aligning the insertion hole 870 with the threaded hole 220. Finally, the screw 88 is screwed into the threaded hole 220 through the insertion hole 870 for fixation. The cooling mechanism 6... Connect the power supply via wires, open the exhaust valves 5 on both sides of the intake pipe 3, and start the cooling mechanism 6. The water pump 62 input pipe delivers coolant into the spiral tube 63 through the connecting pipe 65. The spiral tube 63 structure enhances the flow of coolant, increases the heat exchange area, and significantly improves the heat transfer efficiency. Combined with the return pipe 64, the coolant in the spiral tube 63 can circulate. Natural gas enters the liquefaction tank 1 through the intake pipe 3 on the right side, and the intake pipe 3 is cooled evenly and rapidly, so that the water vapor in the natural gas in the intake pipe 3 is liquefied. The liquefied water droplets fall into the collection box 71 for collection, and then are delivered into the drying box 2 through the intake pipe 3 on the right side. The remaining water vapor in the natural gas is removed by the multi-layer drying cloth bag 83, achieving the effect of efficient dehumidification of natural gas.

[0032] The specific types and structures used are all existing products, and the specific circuit connection structure and control relationship are all existing technologies, so they will not be elaborated on here.

[0033] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A natural gas dehumidification device, comprising a liquefaction tank (1), a drying tank (2), two inlet pipes (3) and an outlet pipe (4), characterized in that: One end of each of the two air inlet pipes (3) is fixedly connected to the left and right ends of the liquefaction tank (1), the right end of the right air inlet pipe (3) is fixedly connected to the bottom of the left end of the drying box (2), the bottom of the air outlet pipe (4) is fixedly connected to the top of the drying box (2), and exhaust valves (5) are provided on the outer walls of both air inlet pipes (3). A cooling mechanism (6) is provided at the front end of the liquefaction tank (1), and the rear side of the outer wall of the cooling mechanism (6) extends into the interior of the liquefaction tank (1). A collection component (7) is provided at the bottom of the liquefaction tank (1), and a drying component (8) is provided on the upper side of the front end of the drying box (2), and the rear side of the outer wall of the drying component (8) extends into the interior of the drying box (2).

2. The natural gas dehumidification device according to claim 1, characterized in that: The cooling mechanism (6) includes a cooling box (61), a water pump (62), a spiral tube (63), a return pipe (64), a connecting pipe (65), and a cooling plate (66). The bottom of the water pump (62) is fixedly connected to the top of the cooling box (61). The output port of the water pump (62) is fixedly connected to one end of the connecting pipe (65). The output pipe of the water pump (62) extends into the interior of the cooling box (61). The right end of the spiral tube (63) is fixedly connected to one end of the connecting pipe (65). The left end of the spiral tube (63) is fixedly connected to one end of the return pipe (64). The other end of the return pipe (64) is fixedly connected to the bottom of the outer wall of the cooling box (61). The outside of the cooling plate (66) is fixedly connected to the front end of the cooling box (61), and the output end of the cooling plate (66) extends into the inner wall of the cooling box (61).

3. The natural gas dehumidification device according to claim 2, characterized in that: The interiors of the cooling box (61), spiral tube (63), return pipe (64) and connecting pipe (65) are interconnected. The rear end of the cooling box (61) is fixedly connected to the front end of the liquefaction tank (1). Both ends of the outer wall of the spiral tube (63) penetrate to the front end of the liquefaction tank (1) and are fixedly connected to each other.

4. The natural gas dehumidification device according to claim 1, characterized in that: The collection assembly (7) includes a collection box (71), four fixing bolts (72) and a frame (73). The inner wall of the frame (73) is fixedly connected to the top of the outer wall of the collection box (71). Two vertically penetrating positioning holes (730) are respectively opened on the front and rear sides of the outer wall of the frame (73). A drain outlet (101) penetrating inside and outside is opened on the middle side of the bottom of the liquefaction tank (1). Two threaded grooves (102) that are adapted to the fixing bolts (72) are respectively opened on the front and rear sides of the bottom of the liquefaction tank (1) near the drain outlet (101). The outer wall of the fixing bolts (72) passes through the positioning holes (730) and is threadedly connected to the inner wall of the threaded grooves (102). A sealing strip is provided on the outer side of the top of the frame (73) near the positioning holes (730).

5. A natural gas dehumidification device according to claim 1, characterized in that: The drying assembly (8) includes a cover plate (81), several mounting frames (82), several drying bags (83), several mounting plates (84), several insert rods (85), a sealing gasket (86), two L-shaped plates (87), two screws (88), and two knobs (89). The outer wall of the drying bag (83) is fixedly connected to the inner wall of the mounting frame (82). The top of the mounting frame (82) near the front side of the drying bag (83) is provided with vertically penetrating mounting holes (820). The front ends of the several mounting plates (84) are... The equidistant array is fixedly connected to the rear end of the cover plate (81), the bottom of the two insert rods (85) is fixedly connected to the left and right sides of the top of the mounting plate (84), the surface of the sealing gasket (86) is fixedly connected to the back of the cover plate (81) near the outer side of several mounting plates (84), one end of the two L-shaped plates (87) is fixedly connected to the middle side of the left and right ends of the cover plate (81), and the rear side of the opposite face of the two L-shaped plates (87) is provided with a through-hole (870) on the left and right sides, and one end of the screw (88) is fixedly connected to the middle of the knob (89).

6. A natural gas dehumidification device according to claim 5, characterized in that: The outside of the mounting frame (82) is inserted into the outer wall of the plug rod (85) through the mounting hole (820).

7. A natural gas dehumidification device according to claim 5, characterized in that: The upper side of the front end of the drying box (2) is provided with an internal and external through mounting port (201). The outer side of the front end of the drying box (2) near the mounting port (201) is provided with a groove (202) that matches the sealing gasket (86). Several trays (21) that are compatible with the mounting frame (82) are fixedly connected at equal intervals on the left and right ends of the inner wall of the drying box (2). Positioning blocks (22) are fixedly connected to the front side of the left and right ends of the drying box (2). The middle of the two positioning blocks (22) is provided with threaded holes (220) that match the screw (88).

8. A natural gas dehumidification device according to claim 7, characterized in that: The bottom of the mounting frame (82) overlaps with the surface of the tray (21), and the outer wall of the screw (88) passes through the insertion hole (870) and is threaded to the inner wall of the threaded hole (220).

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