Natural gas dehydration device

Abstract

The utility model belongs to the technical field of natural gas dehydration, and particularly relates to a natural gas dehydration device which comprises a base, a machine base is installed on the base, a vacuum pump is installed on the machine base, a first guide pipe and a second guide pipe are installed on the vacuum pump, and a cylinder body is installed on the base. A first connecting pipe is installed above the side wall of the cylinder body, a control panel is installed on the side wall of the cylinder body, electromagnetic valves are installed on the first connecting pipe and the second connecting pipe, the electromagnetic valves on the air inlet pipe and the air outlet pipe are closed through the control panel, the electromagnetic valve on the first connecting pipe is opened, and the vacuum pump operates to control the air inlet pipe and the air outlet pipe. The vacuum pump pumps out gas in the cylinder body, pressure difference is formed inside and outside the cylinder body, moisture in the first adsorbent is released and gradually pumped away through the pressure difference, moisture desorption is achieved, vacuum desorption and regeneration of the first adsorbent are achieved, the dehydrating agent can be recycled through the structure, and the utilization rate of the dehydrating agent can be increased.

Description

Technical Field

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

[0002] Natural gas is stored in underground porous rock formations, including oilfield gas, gas field gas, coalbed methane, mud volcano gas and biogenic gas. Natural gas will more or less contain water vapor brought in by itself or other equipment, so a dehydration device is needed to dehydrate the natural gas.

[0003] A Chinese patent with publication number CN219032096U discloses a natural gas dehydration device, which includes a dehydration bin with an air inlet and an air outlet, a sieve plate, a stirring assembly and a material replacement assembly, at least two sieve plates, the two sieve plates are arranged in the dehydration bin at intervals and form a receiving chamber for receiving a dehydrating agent between the two sieve plates and the dehydration bin; the stirring part of the stirring assembly is movably arranged in the receiving chamber for stirring the dehydrating agent in the receiving chamber; the material replacement assembly is arranged on the outside of the dehydration bin, and the material replacement assembly has a material guide channel for replacing the dehydrating agent, and the material guide channel is connected to the receiving chamber. The utility model stirs the dehydrating agent by arranging the stirring part, so that the dehydrating agent can fully absorb the moisture in the natural gas, and the dehydration effect is good; at the same time, by arranging the material guide channel, the dehydrating agent can be replaced through the material guide channel without the need to dismantle the entire device, which is more convenient and quick, and can avoid the problem of reduced dehydration performance due to long-term use of the dehydrating agent.

[0004] In the process of dehydrating natural gas in the existing dehydration device, the dehydrating agent needs to be replaced regularly. Since the dehydrating agent cannot be regenerated, the utilization rate of the dehydrating agent is low. Therefore, a natural gas dehydration device is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve the problems existing in the prior art, the utility model proposes a natural gas dehydration device.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a natural gas dehydration device described in the utility model includes a base, an organic base is installed on the base, a vacuum pump is installed on the organic base, a first conduit and a second conduit are installed on the vacuum pump, a cylinder body is installed on the base, a first connecting pipe is installed on the cylinder body located above the side wall, a second connecting pipe is installed on the cylinder body located below the side wall, the first connecting pipe and the second connecting pipe are connected to the second conduit, a control panel is installed on the side wall of the cylinder body, solenoid valves are installed on the first connecting pipe and the second connecting pipe, the two groups of solenoid valves are connected to the control panel through an internal circuit, and two groups of pressure sensors are installed on the side wall of the cylinder body, and the two groups of pressure sensors are respectively installed above the cylinder body. and below, the probe of the pressure sensor is installed inside the cylinder body, the two groups of pressure sensors are connected to the control panel through the internal circuit, the cylinder body is installed with an air inlet pipe and an air outlet pipe in the middle of the side wall, the air inlet pipe and the air outlet pipe are installed with solenoid valves, the two groups of solenoid valves are connected to the control panel through the internal circuit, the solenoid valves on the air inlet pipe and the air outlet pipe are closed through the control panel, the solenoid valve on the first connecting pipe is opened, and the vacuum pump is operated to extract the gas in the cylinder body, and a pressure difference is formed inside and outside the cylinder body. The pressure difference releases the moisture in the first adsorbent and is gradually extracted, thereby realizing the desorption of moisture and the vacuum desorption regeneration of the first adsorbent. This structure can regenerate the dehydrating agent, which is beneficial to improving the utilization rate of the dehydrating agent.

[0007] Preferably, a slide groove is provided on the inner wall of the cylinder body, a screw rod is rotatably installed between the inner walls of the slide groove through a bearing, a protective cover is installed on the top plate of the cylinder body, a stepper motor is installed on the protective cover, the output shaft of the stepper motor is fixedly connected to one end of the screw rod, a sliding bar is installed in the slide groove, the sliding bar is sleeved on the outer periphery of the screw rod, the sliding bar slides with the screw rod through a thread, a first mounting frame and a second mounting frame are welded on the side wall of the sliding bar, a first adsorbent is installed on the first mounting frame, a second adsorbent is installed on the second mounting frame, and the first An adsorbent and a second adsorbent are assembled in the filter screen, and the operation of the stepper motor is controlled by the control panel. The stepper motor drives the screw rod to rotate, and the screw rod drives the sliding bar thereon to move vertically upward, and the sliding bar drives the first mounting frame and the second mounting frame to move vertically upward, and the first mounting frame and the second mounting frame drive the first adsorbent and the second adsorbent to move vertically upward. At this time, the first adsorbent is located in the upper half of the cylinder body, and the second adsorbent is located in the middle of the cylinder body. That is, the second adsorbent absorbs moisture at this time, thereby realizing rapid replacement of the dehydrating agent, which is beneficial to improving the convenience of replacing the dehydrating agent.

[0008] The utility model is beneficial in that:

[0009] 1. The utility model closes the solenoid valves on the air inlet pipe and the air outlet pipe through the control panel, opens the solenoid valve on the first connecting pipe, and operates the vacuum pump to extract the gas in the cylinder body, forming a pressure difference between the inside and outside of the cylinder body. This pressure difference releases the moisture in the first adsorbent and gradually extracts it, thereby realizing the desorption of the moisture and the vacuum desorption regeneration of the first adsorbent. This structure can regenerate the dehydrating agent, which is beneficial to improving the utilization rate of the dehydrating agent.

[0010] 2. The utility model controls the operation of the stepper motor through the control panel, the stepper motor drives the screw rod to rotate, the screw rod drives the sliding bar thereon to move vertically upward, the sliding bar drives the first mounting bracket and the second mounting bracket to move vertically upward, the first mounting bracket and the second mounting bracket drive the first adsorbent and the second adsorbent to move vertically upward, at this time, the first adsorbent is located in the upper half of the cylinder body, and the second adsorbent is located in the middle of the cylinder body, that is, the second adsorbent is used to absorb moisture at this time, thereby realizing the rapid replacement of the dehydrating agent, which is beneficial to improving the convenience of replacing the dehydrating agent. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0012] Figure 1 It is a schematic diagram of a three-dimensional structure from a first-person perspective;

[0013] Figure 2 It is a schematic diagram of the three-dimensional structure of the cylinder;

[0014] Figure 3 It is a schematic diagram of the three-dimensional structure of the screw rod;

[0015] Figure 4 It is a schematic diagram of the internal three-dimensional structure of the cylinder.

[0016] In the figure: 1. base; 2. machine base; 3. vacuum pump; 4. first conduit; 5. second conduit; 6. cylinder body; 7. first connecting pipe; 9. second connecting pipe; 11. control panel; 12. solenoid valve; 13. pressure sensor; 14. air inlet pipe; 15. air outlet pipe; 16. slide groove; 17. screw rod; 18. protective cover; 19. stepping motor; 20. sliding bar; 21. first mounting bracket; 22. second mounting bracket; 23. first adsorbent; 24. second adsorbent. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-2 As shown, a natural gas dehydration device includes a base 1, a machine base 2 is installed on the base 1, a vacuum pump 3 is installed on the machine base 2, a first conduit 4 and a second conduit 5 are installed on the vacuum pump 3, a cylinder 6 is installed on the base 1, a first connecting pipe 7 is installed on the cylinder 6 located above the side wall, a second connecting pipe 9 is installed on the cylinder 6 located below the side wall, the first connecting pipe 7 and the second connecting pipe 9 are connected to the second conduit 5, a control panel 11 is installed on the side wall of the cylinder 6, solenoid valves 12 are installed on the first connecting pipe 7 and the second connecting pipe 9, and the two groups of solenoid valves 12 are connected to the control panel 11 through an internal circuit, two groups of pressure sensors 13 are installed on the side wall of the cylinder 6, the two groups of pressure sensors 13 are installed above and below the cylinder 6 respectively, the probes of the pressure sensors 13 are installed inside the cylinder 6, and the two groups of pressure sensors 13 are connected to the control panel 11 through an internal circuit, and the cylinder 6 An air inlet pipe 14 and an air outlet pipe 15 are installed in the middle of the side wall, and a solenoid valve 12 is installed on the air inlet pipe 14 and the air outlet pipe 15. The two sets of solenoid valves 12 are connected to the control panel 11 through an internal circuit. When working, the existing dehydration device needs to regularly replace the dehydrating agent during the process of dehydrating natural gas. Since the dehydrating agent cannot be regenerated, the utilization rate of the dehydrating agent is low. During the regeneration of the first adsorbent 23, the solenoid valves 12 on the air inlet pipe 14 and the air outlet pipe 15 are closed through the control panel 11, and the solenoid valve 12 on the first connecting pipe 7 is opened. The vacuum pump 3 is operated to extract the gas in the cylinder 6, and a pressure difference is formed inside and outside the cylinder 6. This pressure difference releases the moisture in the first adsorbent 23 and gradually extracts it, thereby realizing the desorption of moisture and the vacuum desorption and regeneration of the first adsorbent 23.

[0019] Since the first mounting frame 21 and the second mounting frame 22 are attached to the inner wall of the cylinder body 6, the internal space of the cylinder body 6 above the first mounting frame 21 is in a sealed state, so two sets of pressure sensors 13 are required to monitor the regeneration of the first adsorbent 23 and the second adsorbent 24 respectively. The model of the pressure sensor 13 is PC10. The pressure sensor 13 above the cylinder body 6 monitors the pressure inside the cylinder body 6, and the control panel 11 controls according to the real-time data to ensure the stability of the inside of the cylinder body 6;

[0020] The first adsorbent 23 is vacuum desorbed and regenerated, and the second adsorbent 24 is also adsorbing water. The second adsorbent 24 needs to be vacuum desorbed and regenerated. The stepper motor 19 drives the screw 17 to rotate in the opposite direction, so that the second adsorbent 24 moves to the bottom of the cylinder 6 for vacuum desorption and regeneration, and the first adsorbent 23 moves to the middle section of the cylinder 6 for adsorption. This structure can regenerate the dehydrating agent, which is beneficial to improving the utilization rate of the dehydrating agent.

[0021] See also Figure 3-4 As shown, a slide groove 16 is provided on the inner wall of the cylinder body 6, a screw rod 17 is rotatably installed between the inner walls of the slide groove 16 through a bearing, a protective cover 18 is installed on the top plate of the cylinder body 6, a stepper motor 19 is installed on the protective cover 18, the output shaft of the stepper motor 19 is fixedly connected to one end of the screw rod 17, a sliding bar 20 is assembled in the slide groove 16, the sliding bar 20 is sleeved on the outer periphery of the screw rod 17, the sliding bar 20 slides with the screw rod 17 through a thread, a first mounting frame 21 and a second mounting frame 22 are welded on the side wall of the sliding bar 20, and a first adsorption The first adsorbent 23 is installed on the second mounting frame 22, and the second adsorbent 24 is installed on the first mounting frame 22. The first adsorbent 23 and the second adsorbent 24 are assembled in the filter screen. When working, since most dehydration devices have complex structures, it is not convenient to replace the dehydration agent. The solenoid valve 12 on the air inlet pipe 14 and the air outlet pipe 15 is controlled to open by the control panel 11, and the natural gas carrying water vapor enters the cylinder body 6 from the air inlet pipe 14, passes through the first adsorbent 23, and the first adsorbent 23 absorbs the water in the natural gas. Then, the pure natural gas is discharged from the air outlet pipe 15, thereby achieving the dehydration of the natural gas.

[0022] After the first adsorbent 23 has been used for a period of time, it reaches a certain adsorption saturation and needs to be replaced. The stepper motor 19 is controlled by the control panel 11 to operate, and the stepper motor 19 drives the screw rod 17 to rotate, and the screw rod 17 drives the sliding bar 20 thereon to move vertically upward, and the sliding bar 20 drives the first mounting frame 21 and the second mounting frame 22 to move vertically upward, and the first mounting frame 21 and the second mounting frame 22 drive the first adsorbent 23 and the second adsorbent 24 to move vertically upward. At this time, the first adsorbent 23 is located in the upper half of the cylinder body 6, and the second adsorbent 24 is located in the middle of the cylinder body 6, that is, the second adsorbent 24 is used to absorb moisture at this time, thereby realizing rapid replacement of the dehydrating agent, which is conducive to improving the convenience of replacing the dehydrating agent.

[0023] Working principle: since most dehydration devices have complex structures, it is not convenient to replace the dehydrating agent. The solenoid valve 12 on the air inlet pipe 14 and the air outlet pipe 15 is opened by controlling the control panel 11, and the natural gas carrying water vapor enters the cylinder 6 from the air inlet pipe 14, passes through the first adsorbent 23, and the first adsorbent 23 absorbs the water in the natural gas. Then the pure natural gas is discharged from the air outlet pipe 15, and the dehydration of the natural gas is achieved; after the first adsorbent 23 has been used for a period of time, it reaches a certain adsorption saturation and needs to be replaced. The stepper motor 19 is controlled by the control panel 11 to operate, and the stepper motor 19 drives the screw rod 17 to rotate, and the screw rod 17 drives the sliding bar 20 thereon to move vertically upward. The sliding bar 20 drives the first mounting frame 21 and the second mounting frame 22 to move vertically upward, and the first mounting frame 21 and the second mounting frame 22 drive the first adsorbent 23 and the second adsorbent 24 to move vertically upward. At this time, the first adsorbent 23 is located in the upper half of the cylinder body 6, and the second adsorbent 24 is located in the middle of the cylinder body 6. That is, at this time, the second adsorbent 24 adsorbs moisture, which realizes the rapid replacement of the dehydrating agent, which is conducive to improving the convenience of replacing the dehydrating agent. In the process of dehydrating natural gas, the existing dehydration device needs to replace the dehydrating agent regularly. Since the dehydrating agent cannot be regenerated, the utilization rate of the dehydrating agent is low. In the process of regenerating the first adsorbent 23, the dehydrating agent is replaced regularly. , the solenoid valves 12 on the air inlet pipe 14 and the air outlet pipe 15 are closed through the control panel 11, and the solenoid valve 12 on the first connecting pipe 7 is opened. The vacuum pump 3 operates, and the vacuum pump 3 extracts the gas in the cylinder 6. A pressure difference is formed inside and outside the cylinder 6. This pressure difference releases the moisture in the first adsorbent 23 and gradually extracts it, thereby achieving desorption of the moisture and vacuum desorption and regeneration of the first adsorbent 23. Since the first mounting frame 21 and the second mounting frame 22 are attached to the inner wall of the cylinder 6, the internal space of the cylinder 6 above the first mounting frame 21 is in a sealed state, so two sets of pressure sensors 13 are required to regenerate the first adsorbent 23 and the second adsorbent 24 respectively. The pressure sensor 13 is of model PC10. The pressure sensor 13 above the cylinder 6 monitors the pressure inside the cylinder 6. The control panel 11 controls according to the real-time data to ensure the stability inside the cylinder 6. The first adsorbent 23 is vacuum desorbed and regenerated. At the same time, the second adsorbent 24 also adsorbs water. The second adsorbent 24 needs to be vacuum desorbed and regenerated. The stepper motor 19 drives the screw rod 17 to rotate in the opposite direction, so that the second adsorbent 24 moves to the bottom of the cylinder 6 for vacuum desorption and regeneration, and the first adsorbent 23 moves to the middle section of the cylinder 6 for adsorption. This structure can regenerate the dehydrating agent, which is beneficial to improving the utilization rate of the dehydrating agent.

[0024] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A natural gas dehydration device, characterized in that : comprising a base (1), a base (2) being mounted on the base (1), a vacuum pump (3) being mounted on the base (2), a first conduit (4) and a second conduit (5) being mounted on the vacuum pump (3), a cylinder (6) being mounted on the base (1), a first connecting pipe (7) being mounted on the cylinder (6) located above the side wall, a second connecting pipe (9) being mounted on the cylinder (6) located below the side wall, the first connecting pipe (7) and the second connecting pipe (9) being connected to the second conduit (5), and the side wall of the cylinder (6) A control panel (11) is installed on the cylinder (6); solenoid valves (12) are installed on the first connecting pipe (7) and the second connecting pipe (9); the two groups of solenoid valves (12) are connected to the control panel (11) through an internal circuit; two groups of pressure sensors (13) are installed on the side wall of the cylinder (6); the two groups of pressure sensors (13) are installed above and below the cylinder (6) respectively; probes of the pressure sensors (13) are installed inside the cylinder (6); and the two groups of pressure sensors (13) are connected to the control panel (11) through an internal circuit.

2. A natural gas dehydration device according to claim 1, characterized in that: The cylinder body (6) is provided with an air inlet pipe (14) and an air outlet pipe (15) at the middle of the side wall, and electromagnetic valves (12) are installed on the air inlet pipe (14) and the air outlet pipe (15). The two sets of electromagnetic valves (12) are connected to the control panel (11) through an internal circuit.

3. A natural gas dehydration device according to claim 1, characterized in that: A slide groove (16) is provided on the inner wall of the cylinder body (6), and a screw rod (17) is rotatably mounted between the inner walls of the slide groove (16) via a bearing.

4. A natural gas dehydration device according to claim 1, characterized in that: A protective cover (18) is installed on the top plate of the cylinder body (6), a stepping motor (19) is installed on the protective cover (18), and an output shaft of the stepping motor (19) is fixedly connected to one end of the screw rod (17).

5. A natural gas dehydration device according to claim 3, characterized in that: A sliding bar (20) is installed in the sliding groove (16). The sliding bar (20) is sleeved on the outer periphery of the screw rod (17). The sliding bar (20) slides in cooperation with the screw rod (17) through a thread.

6. A natural gas dehydration device according to claim 5, characterized in that: A first mounting frame (21) and a second mounting frame (22) are welded to the side wall of the sliding bar (20); a first adsorbent (23) is mounted on the first mounting frame (21); a second adsorbent (24) is mounted on the second mounting frame (22); and the first adsorbent (23) and the second adsorbent (24) are assembled in the filter screen.

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