A natural gas de-hydrocarbon device

Abstract

The utility model discloses a natural gas removes heavy hydrocarbon device belongs to the field of adsorption tower, a natural gas removes heavy hydrocarbon device, including the tower body, the bottom fixedly connected with gas distributor of tower body, the inside fixedly connected with the bearing plate of tower body for bearing adsorbent, the outside fixedly connected with the gas inlet pipe of tower body, and the top fixedly connected with the gas outlet pipe of tower body, a group of symmetrical discharge channels are seted up on the bearing plate, a group of symmetrical discharge pipes are fixedly connected on the tower body. The utility model discloses the sealing assembly of setting, the inside direction of guiding strip of guide cylinder is limited, the downward movement of guiding strip and baffle along the inside of guide cylinder is controlled, the baffle removes the shielding of material mouth, the rotation of the driving rod of setting is favorable to the removal of material mouth shielding and the intercommunication of discharge channel and discharge pipe simultaneously, so as to be convenient for subsequent through material mouth and pour into the inside of tower body with new adsorbent, and the inside of tower body is taken out with old adsorbent.

Description

Technical Field

[0001] This utility model relates to the field of adsorption towers, and more specifically, to a natural gas dehydrocarbon removal device. Background Technology

[0002] As an important clean energy source, the purification of natural gas is a key step in ensuring pipeline transportation and downstream processing. Among these processes, the removal of heavy hydrocarbons (C5+ components) is one of the core technologies for natural gas treatment. This process prevents heavy hydrocarbons from condensing or freezing at low temperatures, which could affect equipment operation. Adsorption methods, due to their high efficiency and selectivity, have become a commonly used technology for removing heavy hydrocarbons. By selectively capturing heavy hydrocarbons through adsorbents such as molecular sieves and activated carbon, the purification of natural gas can be achieved.

[0003] After the adsorbent becomes ineffective, the unit usually needs to be completely shut down and cleaned manually by opening the tower manhole or discharge port. This process not only consumes a lot of time for system isolation, depressurization, and cooling, but also requires operators to enter the confined space, posing a high safety risk. During the cleaning process, adsorbent particles can easily generate dust, leading to excessive dust concentration in the working environment, which not only endangers the health of operators but may also cause dust explosion hazards. In addition, manual cleaning is difficult to completely empty the bed, and residual ineffective adsorbent will mix with the new adsorbent, seriously affecting the subsequent adsorption efficiency. More importantly, this traditional replacement method often requires several days of downtime, which seriously affects the continuous operation efficiency of the natural gas processing unit and increases production costs. Therefore, we propose a natural gas heavy hydrocarbon removal unit to solve the above-mentioned problems. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a natural gas heavy hydrocarbon removal device. It utilizes a pusher assembly to activate a servo motor, which drives a gear to rotate. Since gears one and two mesh, this controls the rotation of a sleeve around the outside of the guide cylinder, which in turn controls the rotation of a pusher plate on the support plate. This pushes the adsorbent that has lost its adsorption effect to the inside of the discharge channel, allowing the suction pump to continuously extract the old adsorbent from the tower body, thus quickly completing the removal of the old adsorbent. A sealing assembly restricts the movement of the guide bar inside the guide cylinder, controlling the guide bar and the stop to move downwards along the inside of the guide cylinder. The stop releases the obstruction of the feed inlet. The rotation of the drive rod facilitates the simultaneous release of the feed inlet obstruction and the connection between the discharge channel and the discharge pipe, thus enabling the subsequent injection of new adsorbent into the tower body through the feed inlet and the extraction of the old adsorbent from the tower body.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A natural gas heavy hydrocarbon removal device includes a tower body. A gas distributor is fixedly connected to the bottom of the tower body. A support plate is fixedly connected inside the tower body to support the adsorbent. An inlet pipe is fixedly connected to the outside of the tower body, and an outlet pipe is fixedly connected to the top of the tower body. A set of symmetrical discharge channels are formed on the support plate. A set of symmetrical discharge pipes are fixedly connected to the tower body, and the discharge channels are respectively connected to the discharge pipes. A guide cylinder is fixedly connected to the center of the support plate. A pushing component is provided on the guide cylinder to push the adsorbent into the discharge channel. A set of symmetrical feed ports are formed on the guide cylinder. A sealing component is provided inside the tower body to control the opening and closing of the feed ports and discharge channels.

[0009] Furthermore, the material pushing assembly includes a sleeve, a pusher plate, a first gear, and a second gear. The guide cylinder passes through the sleeve, and the sleeve is movably connected to the guide cylinder. The pusher plates are symmetrically arranged, and each pusher plate is fixedly connected to the outside of the sleeve. The bottom end of the pusher plate is in contact with the top of the bearing plate. The first gear is fixedly connected to the outside of the top end of the sleeve, and the second gear is movably connected to the top end of the tower body through a rotating shaft, and the first gear and the second gear mesh with each other.

[0010] Furthermore, a bracket is fixedly connected to the top of the tower body, the top end of the sleeve penetrates through the center of the top of the tower body, and the sleeve is movably connected to the tower body. Both gear one and gear two are located inside the bracket, and the top end of the sleeve is movably connected to the bracket.

[0011] Furthermore, a servo motor is fixedly connected to the top of the bracket, and the output end of the servo motor is fixedly connected to the end of the shaft of the gear.

[0012] Furthermore, the sealing assembly includes a movable ring, a connecting rod, a sealing strip, and a driving rod. The movable ring is movably connected to the bottom end of the guide cylinder. A set of symmetrical connecting rods is fixedly connected to the outer side of the movable ring, and a sealing strip is fixedly connected to the other end of each connecting rod. The sealing strip is adapted to the discharge channel. The outer side of the driving rod is threaded, and the driving rod passes through the center of the movable ring. The driving rod is movably connected to the movable ring through the thread.

[0013] Furthermore, the sealing assembly also includes a guide strip and a stop block. The guide strip is movably connected to the bottom of the guide cylinder, and the top of the guide strip is fixedly connected to the stop block. The side of the stop block blocks the material inlet. The top of the drive rod is provided with a second thread, and the top of the drive rod is movably connected to the bottom of the guide strip through the second thread.

[0014] Furthermore, the top of the drive rod is movably connected to the guide cylinder, the bottom end of the drive rod is movably connected to the center of the bottom end of the tower body, and a second servo motor is fixedly connected to the bottom end of the tower body, with the output end of the second servo motor fixedly connected to the bottom end of the drive rod.

[0015] 3. Beneficial effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] (1) In this scheme, by setting the pusher assembly, the servo motor one is started, which drives the gear two to rotate. Since the gear one and the gear two mesh, the sleeve is controlled to rotate around the outside of the guide cylinder, and then the pusher plate is controlled to rotate on the bearing plate, thereby pushing the adsorbent that has lost its adsorption effect to move to the inside of the discharge channel, so that the air pump can continuously extract the old adsorbent from the tower body, and thus quickly complete the removal operation of the old adsorbent.

[0018] (2) In this scheme, the sealing component is set to restrict the movement direction of the guide bar inside the guide tube, control the guide bar and the stop to move downward along the inside of the guide tube, and the stop to release the obstruction of the material port. By rotating the drive rod, it is beneficial to simultaneously release the obstruction of the material port and connect the discharge channel and the discharge pipe, so as to facilitate the subsequent injection of new adsorbent into the inside of the tower body through the material port and the extraction of old adsorbent from the inside of the tower body. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of the tower body of this utility model;

[0021] Figure 3 This is an exploded view of the feeding assembly of this utility model;

[0022] Figure 4 This is a schematic diagram of the exploded structure of the sealing component of this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. Tower body; 2. Gas distributor; 3. Support plate; 4. Discharge channel; 5. Discharge pipe; 6. Guide cylinder; 7. Pushing assembly; 701. Sleeve; 702. Push plate; 703. Gear 1; 704. Gear 2; 8. Material inlet; 9. Sealing assembly; 901. Moving ring; 902. Connecting rod; 903. Sealing strip; 904. Drive rod; 905. Guide strip; 906. Stop block; 10. Support; 11. Servo motor 1; 12. Servo motor 2. Detailed Implementation

[0025] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] Example 1:

[0027] like Figure 1-4 As shown, this utility model provides a technical solution: a natural gas heavy hydrocarbon removal device, including a tower body 1. A gas distributor 2 is fixedly connected to the bottom of the tower body 1. A support plate 3 is fixedly connected inside the tower body 1 to support the adsorbent. The support plate 3 has an adsorbent bed, mainly composed of molecular sieves, etc. Magnetic ball layers are set at the upper and lower ends of the adsorbent to evenly distribute the airflow and prevent the adsorbent particles from being lost. An inlet pipe is fixedly connected to the outside of the tower body 1, and an outlet pipe is fixedly connected to the top of the tower body 1. For simplicity, the inlet and outlet pipes are used to roughly describe the flow direction of the pretreated natural gas, and do not mean that the tower body 1 does not have other pipes or other accessories. As is common in the field, it will not be described in detail. A set of symmetrical discharge channels 4 are opened on the support plate 3, and a set of symmetrical discharge pipes 5 are fixedly connected to the tower body 1. The discharge channels 4 are connected to the discharge pipes 5 respectively. The discharge pipes 5 are connected to the suction pump. Under the negative pressure of the suction pump, the adsorbent is sucked out from the inside of the discharge channel 4, so that it is discharged from the inside of the tower body 1. A guide cylinder 6 is fixedly connected to the center of the support plate 3. A pusher assembly 7 is provided on the guide cylinder 6 to push the adsorbent into the inside of the discharge channel 4. A set of symmetrical material ports 8 are opened on the guide cylinder 6. A sealing assembly 9 is provided inside the tower body 1 to control the opening and closing of the material ports 8 and the discharge channels 4.

[0028] In the heavy hydrocarbon removal adsorption stage of natural gas, the pretreated natural gas enters from the top of the adsorption tower and is uniformly dispersed by the gas distributor 2. It then passes through the adsorbent bed (such as molecular sieve or activated carbon) from top to bottom. The heavy hydrocarbon components (C5+) are selectively adsorbed, while the light components (CH4, C2H6, etc.) pass through the bed and are discharged from the bottom purified gas outlet. The concentration of heavy hydrocarbons at the outlet is monitored in real time during the adsorption process. When the breakthrough value (such as 10 ppm) is reached or the preset time is reached, the system switches to the regeneration stage. The bed temperature, pressure drop and flow rate are dynamically adjusted by the control system to ensure adsorption efficiency and safety.

[0029] Example 2:

[0030] like Figure 1 and Figure 3As shown, the feeding assembly 7 includes a sleeve 701, a pusher plate 702, a first gear 703, and a second gear 704. A guide cylinder 6 passes through the sleeve 701, and the sleeve 701 is movably connected to the guide cylinder 6. The pusher plates 702 are symmetrically arranged, and each pusher plate 702 is fixedly connected to the outside of the sleeve 701. The bottom end of the pusher plate 702 is in contact with the top of the bearing plate 3. The first gear 703 is fixedly connected to the outside of the top end of the sleeve 701, and the second gear 704 is movably connected to the top of the tower body 1 via a rotating shaft. Furthermore, gear 1 703 meshes with gear 2 704, a bracket 10 is fixedly connected to the top of the tower body 1, the top end of sleeve 701 passes through the center of the top of the tower body 1, and sleeve 701 is movably connected to the tower body 1, gear 1 703 and gear 2 704 are both located inside the bracket 10, the top end of sleeve 701 is movably connected to the bracket 10, a servo motor 11 is fixedly connected to the top of the bracket 10, and the output end of servo motor 11 is fixedly connected to the end of the shaft of gear 2 704.

[0031] The top of the feed cylinder 6 is connected to the outlet end of the adsorbent storage tank. Adsorbent is filled on the top of the support plate 3. When the servo motor 11 is started, it drives the gear 2 704 to rotate. Since the gear 1 703 meshes with the gear 2 704, the sleeve 701 is controlled to rotate around the outside of the feed cylinder 6, which in turn controls the push plate 702 to rotate on the support plate 3, thereby pushing the adsorbent that has lost its adsorption effect to move into the interior of the discharge channel 4.

[0032] Example 3:

[0033] like Figure 1 and Figure 4 As shown, the sealing assembly 9 includes a moving ring 901, a connecting rod 902, a sealing strip 903, and a driving rod 904. The moving ring 901 is movably connected to the bottom end of the guide cylinder 6. A set of symmetrical connecting rods 902 are fixedly connected to the outer side of the moving ring 901, and the other end of each connecting rod 902 is fixedly connected to a sealing strip 903. The sealing strip 903 is adapted to the discharge channel 4. The outer side of the driving rod 904 is threaded, and the driving rod 904 passes through the center of the moving ring 901. The driving rod 904 is movably connected to the moving ring 901 through the thread. The sealing assembly 9 also includes a guide strip 905 and... The stop block 906 and guide bar 905 are movably connected to the bottom of the guide cylinder 6, and the top of the guide bar 905 is fixedly connected to the stop block 906. The side of the stop block 906 blocks the material inlet 8. The top of the drive rod 904 is provided with a second thread. The top of the drive rod 904 is movably connected to the bottom of the guide bar 905 through the second thread. The top of the drive rod 904 is movably connected to the guide cylinder 6. The bottom of the drive rod 904 is movably connected to the center of the bottom of the tower body 1. The bottom of the tower body 1 is fixedly connected to the second servo motor 12, and the output end of the second servo motor 12 is fixedly connected to the bottom of the drive rod 904.

[0034] The servo motor 12 is started, driving the drive rod 904 to rotate. Since the drive rod 904 is movably connected to the moving ring 901 through the thread 1, and the guide cylinder 6 restricts the movement direction of the moving ring 901, the moving ring 901 drives the connecting rod 902 to move downward, thereby causing the sealing strip 903 to move to the bottom of the discharge channel 4. At this time, the discharge channel 4 is connected to the discharge pipe 5. The drive rod 904 is movably connected to the guide strip 905 through the thread 2. The inside of the guide cylinder 6 restricts the movement direction of the guide strip 905, controlling the guide strip 905 and the stop block 906 to move downward along the inside of the guide cylinder 6. The stop block 906 releases the obstruction of the material port 8. By rotating the drive rod 904, it is beneficial to simultaneously release the obstruction of the material port 8 and connect the discharge channel 4 and the discharge pipe 5, thereby facilitating the subsequent injection of new adsorbent into the interior of the tower body 1 through the material port 8 and the extraction of old adsorbent from the interior of the tower body 1.

[0035] Working principle: In use, firstly, servo motor 12 is started, driving drive rod 904 to rotate. Since drive rod 904 is movably connected to moving ring 901 through thread 1, and guide cylinder 6 restricts the movement direction of moving ring 901, moving ring 901 drives connecting rod 902 to move downward, thereby moving sealing strip 903 to the bottom of discharge channel 4. At this time, discharge channel 4 is connected to discharge pipe 5. Drive rod 904 is movably connected to guide strip 905 through thread 2. The inside of guide cylinder 6 restricts the movement direction of guide strip 905, controlling guide strip 905 and stop block 906 to move downward along the inside of guide cylinder 6. Stop block 906 releases the obstruction of discharge port 8. Then, the suction pump is started. Under the negative pressure of suction pump, adsorbent flows from the discharge port 8. The adsorbent is sucked out from inside the feed channel 4; then the servo motor 11 is started, driving the gear 2 704 to rotate. Since the gear 1 703 meshes with the gear 2 704, the sleeve 701 is controlled to rotate around the outside of the guide cylinder 6, which in turn controls the push plate 702 to rotate on the support plate 3, thereby pushing the adsorbent that has lost its adsorption effect to move into the discharge channel 4 until the old adsorbent inside the tower body 1 is completely removed from the tower body 1; finally, the valve of the adsorbent storage tank is opened, and the new adsorbent is put into the inside of the guide cylinder 6 and into the inside of the tower body 1 through the feed port 8. When the suction pump stops, the adsorbent will not automatically move out from the discharge pipe 5. Finally, the drive rod 904 is used to cover the feed port 8 and the discharge channel 4 again, thus completing the replacement of the adsorbent.

[0036] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A natural gas de-ιιavy hydrocarbon unit comprising a column body (1) characterised in that: A gas distributor (2) is fixedly connected to the bottom of the tower body (1). A support plate (3) is fixedly connected inside the tower body (1) for carrying the adsorbent. An air inlet pipe is fixedly connected to the outside of the tower body (1), and an air outlet pipe is fixedly connected to the top of the tower body (1). A set of symmetrical discharge channels (4) are opened on the support plate (3). A set of symmetrical discharge pipes (5) are fixedly connected to the tower body (1), and the discharge channels (4) are connected to the discharge pipes (5). A guide cylinder (6) is fixedly connected to the center of the support plate (3). A pusher assembly (7) is provided on the guide cylinder (6) for pushing the adsorbent into the discharge channel (4). A set of symmetrical material inlets (8) are opened on the guide cylinder (6). A sealing assembly (9) is provided inside the tower body (1) for controlling the opening and closing of the material inlets (8) and the discharge channels (4).

2. The natural gas heavy hydrocarbon removal device according to claim 1, characterized in that: The feeding assembly (7) includes a sleeve (701), a pusher plate (702), a first gear (703), and a second gear (704). The guide cylinder (6) passes through the sleeve (701), and the sleeve (701) is movably connected to the guide cylinder (6). The pusher plates (702) are symmetrically arranged, and each pusher plate (702) is fixedly connected to the outside of the sleeve (701). The bottom end of the pusher plate (702) is in contact with the top of the bearing plate (3). The first gear (703) is fixedly connected to the outside of the top end of the sleeve (701). The second gear (704) is movably connected to the top end of the tower body (1) through a rotating shaft, and the first gear (703) and the second gear (704) mesh with each other.

3. A natural gas heavy hydrocarbon removal device according to claim 2, characterized in that: A bracket (10) is fixedly connected to the top of the tower body (1). The top end of the sleeve (701) passes through the center of the top of the tower body (1) and is movably connected to the tower body (1). The first gear (703) and the second gear (704) are both located inside the bracket (10). The top end of the sleeve (701) is movably connected to the bracket (10).

4. A natural gas heavy hydrocarbon removal device according to claim 3, characterized in that: The top of the bracket (10) is fixedly connected to a servo motor (11), and the output end of the servo motor (11) is fixedly connected to the shaft end of the gear (704).

5. A natural gas heavy hydrocarbon removal device according to claim 1, characterized in that: The sealing assembly (9) includes a moving ring (901), a connecting rod (902), a sealing strip (903), and a driving rod (904). The moving ring (901) is movably connected to the bottom end of the guide cylinder (6). A set of symmetrical connecting rods (902) is fixedly connected to the outer side of the moving ring (901), and the other end of each connecting rod (902) is fixedly connected to a sealing strip (903). The sealing strip (903) is adapted to the discharge channel (4). The outer side of the driving rod (904) is provided with a thread. The driving rod (904) passes through the center of the moving ring (901), and the driving rod (904) is movably connected to the moving ring (901) through the thread.

6. A natural gas heavy hydrocarbon removal device according to claim 5, characterized in that: The sealing assembly (9) further includes a guide strip (905) and a stop block (906). The guide strip (905) is movably connected to the bottom of the guide cylinder (6), and the top of the guide strip (905) is fixedly connected to the stop block (906). The side of the stop block (906) blocks the material inlet (8). The top of the drive rod (904) is provided with a threaded second thread, and the top of the drive rod (904) is movably connected to the bottom of the guide strip (905) through the threaded second thread.

7. A natural gas heavy hydrocarbon removal device according to claim 6, characterized in that: The top of the drive rod (904) is movably connected to the guide cylinder (6), the bottom end of the drive rod (904) is movably connected to the center of the bottom end of the tower body (1), the bottom end of the tower body (1) is fixedly connected to a servo motor (12), and the output end of the servo motor (12) is fixedly connected to the bottom end of the drive rod (904).

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