A gas purification adsorption device for FGSS marine gas processing

Abstract

The present invention discloses a gas purification adsorption device for FGSS marine gas processing, which is applied in the technical field of FGSS marine gas processing. Air is pressurized through a pressurizing port, causing the airflow to blow the sealing baffle to rotate. After the torsion spring is twisted, the gas discharge port is sealed. Then, clean gas is injected into the separation tube through the gas input port. The clean gas passes through the purification coil pipe to take away the dust and debris inside the suction filtration component. At the same time, due to the external air pressure, the clean gas inside the purification coil pipe cannot be discharged through the suction filtration component. It can only overcome the elastic force of the blocking spring to connect the opening groove and the connecting hole, and directly discharge the clean gas carrying dust and debris from the slag discharge port. This setting achieves the purpose of automatically cleaning the filter element without manual disassembly and removal of the filter element, solves the defect that the existing natural gas adsorption and filtration filter elements need to be regularly removed and cleaned, not only reduces the safety hazard, but also improves the cleaning efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of FGSS marine gas processing, and particularly relates to a gas purification adsorption device for FGSS marine gas processing. Background Art

[0002] FGSS marine gas is short for the liquefied natural gas (LNG) supply system. It supplies liquid raw material LNG (-163 °C) to the fuel tank through a filling station, and transports the liquid LNG to the gas preparation station through a pump in the tank for vaporization and supply to downstream vessels for use. Since natural gas is in a gaseous state after extraction and most natural gas is located in remote areas, in order to facilitate the transportation of natural gas to densely populated cities for use, natural gas needs to be liquefied. However, since there are certain impurities and moisture in natural gas after extraction, direct liquefaction will cause moisture condensation and easily block the gas pipeline. Therefore, before liquefaction, natural gas needs to undergo gas purification adsorption to remove internal impurities and moisture.

[0003] Currently, a Chinese invention with the publication number CN114854465A discloses a natural gas filtration and purification device, including a tank cover part, a tank body part, and a filtration component. The tank cover part is arranged on the upper part of the tank body part. The tank body part includes an outer shell and an inner shell. The outer shell is sleeved outside the inner shell, and a sandwich is formed between the outer shell and the inner shell. The sandwich is filled with molecular sieve. The filtration component includes a filter element and a driving part. The filter element is arranged in the inner cavity formed by the enclosure of the inner shell, and the driving part is arranged at the lower part of the tank body part. The driving part can drive the filter element to rise or fall along the axial direction of the tank body part. A connecting pipe for communication is arranged between the sandwich and the inner cavity; in this invention, the filter element is convenient to take out and install, avoiding knocking between the filter element and the tank body part when taking out and placing the filter element. Moreover, the filter element in the inner cavity plays a primary filtration role, and the molecular sieve in the sandwich plays a secondary filtration role, which can quickly filter and purify solid particles and trace liquids in natural gas.

[0004] To sum up, in the above-mentioned prior art, although it meets the requirements of quickly separating solid particles and trace liquids, reducing the floor area, and the filter element being easy to take out for cleaning and installation, there are still the following problems;

[0005] The cleaning of the filter element still requires manual replacement. However, natural gas is a toxic, flammable, and explosive gas, and there will be a certain amount of residual natural gas in the pipe. The risk factors brought by manual replacement are relatively large. For example, due to improper operation and other reasons, it will increase the safety hazards of filter element cleaning.

[0006] In order to solve the above problems, we propose a gas purification adsorption device for FGSS marine gas processing. Summary of the Invention

[0007] The purpose of the present invention is to provide a gas purification adsorption device for FGSS marine gas processing, which has the advantage that the filter element does not need to be manually disassembled and taken out, and the filter element can be automatically cleaned.

[0008] The above technical object of the present invention is achieved through the following technical solutions: A gas purification adsorption device for FGSS marine gas processing includes an outer tower tank, and an inner tower tank is installed inside the outer tower tank. A gas adsorption mechanism is arranged between the outer tower tank and the inner tower tank. A pressurization port and a gas discharge port, which are used in cooperation with the gas adsorption machine, are respectively opened in the middle and bottom of one side of the outer tower tank. One end of the pressurization port is provided with a sealing baffle that is rotatably connected to the outer tower tank. Both sides of the sealing baffle are fixedly connected with torsion springs that are fixedly connected to the outer tower tank. The sealing baffle rotates through the torsion springs to seal the pressurization port or the gas discharge port. An opening groove communicating with the gas adsorption mechanism is opened between the outer tower tank and the inner tower tank. A blocking spring is installed inside the opening groove. The top of the blocking spring is provided with a conical plug that is slidably connected to the opening groove. A slag discharge port is opened on the other side of the outer tower tank. A connection hole that communicates with the opening groove and the slag discharge port respectively is also opened between the outer tower tank and the inner tower tank;

[0009] The gas adsorption mechanism includes a separation tube fixedly installed inside the inner tower tank. The top of the outer tower tank is fixedly connected with a gas input port that communicates with the separation tube. A drainage funnel that communicates with the bottom of the separation tube is installed at the bottom of the outer tower tank. A purification coil that communicates with the separation tube and the opening groove respectively is sleeved on the surface of the inner tower tank. A filter component is installed on the surface of the purification coil; The filter component includes a filter cylinder that is threadedly connected to the purification coil. One end of the filter cylinder close to the inside of the purification coil is provided with molecular sieve, and activated carbon is installed inside the filter cylinder.

[0010] By adopting the above technical solutions, air is pressurized through the pressurization port, so that the airflow blows the sealing baffle to rotate, and then the gas discharge port is sealed after the torsion spring is twisted. The gas is injected into the cavity between the outer tower tank and the inner tower tank. Then, clean gas is injected into the separation tube through the gas input port. The clean gas takes away the dust and sundries inside the filter component when passing through the purification coil. At the same time, due to the external air pressure, the clean gas inside the purification coil cannot be discharged through the filter component, so it will flow into the opening groove along the purification coil, and by overcoming the elastic force of the blocking spring, the opening groove and the connection hole are communicated, so that the clean gas carrying dust and sundries is directly discharged from the slag discharge port. This setting achieves the purpose of automatically cleaning the filter element without manually disassembling and taking out the filter element, solves the defect that the filter element for the existing natural gas adsorption and filtration needs to be regularly removed and cleaned, not only reduces the safety hazard, but also improves the cleaning efficiency.

[0011] The present invention is further configured such that: a collection chamber communicating with the drain funnel is installed at the bottom of the outer tank of the tower, and a movable door is threadedly connected to one side of the collection chamber.

[0012] With the above technical solution, the collection chamber can collect the water and large-mass sundries falling inside the drain funnel, and at the same time, the sundries are discharged by opening the movable door.

[0013] The present invention is further configured such that: a drain valve is fixedly connected to the side of the collection chamber away from the movable door, and a sealing ring is sleeved and adhered to the surface of the end of the drain valve close to the collection chamber.

[0014] With the above technical solution, the water inside the collection chamber can be discharged through the drain valve, and at the same time, the sealing performance with the collection chamber is improved.

[0015] The present invention is further configured such that: support legs are installed at the four corners of the bottom of the outer tank of the tower, and anti-slip pads are adhered to the bottoms of the support legs.

[0016] With the above technical solution, the outer tank of the tower is supported and fixed to improve the stability of the outer tank of the tower.

[0017] The present invention is further configured such that: a coil support used in cooperation with the purification coil is installed inside the outer tank of the tower.

[0018] With the above technical solution, the purification coil is supported and limited to improve the stability of the purification coil.

[0019] The present invention is further configured such that: a duckbill groove used in cooperation with the separation pipe is provided at one end of the gas input port close to the outer tank of the tower.

[0020] With the above technical solution, the natural gas is compressed when entering the separation pipe from the gas input port, the flow rate is increased, and thus the adsorption and purification effect is improved.

[0021] The present invention is further configured such that: a maintenance door is installed at one end of the surface of the outer tank of the tower, and a handle is installed on the side of the maintenance door away from the outer tank of the tower.

[0022] With the above technical solution, it is convenient to open the outer tank of the tower to repair the parts of the gas adsorption mechanism inside.

[0023] The present invention is further configured such that: flange plates are installed at the ends of the pressurization port, the gas discharge port, and the slag discharge port away from the outer tank of the tower.

[0024] With the above technical solution, it is convenient to make a sealed connection with the gas pipeline system.

[0025] In summary, the present invention has the following beneficial effects:

[0026] The present invention pressurizes by injecting air through a pressurizing port, causing the airflow to blow the sealing baffle to rotate, so that after the torsion spring is twisted, the gas discharge port is sealed, and gas is injected into the cavity between the outer tank and the inner tank of the tower body. Then, clean gas is injected into the separation tube through the gas input port. The clean gas passes through the purification coil to take away the dust and debris inside the suction filter assembly. At the same time, due to the external air pressure, the clean gas inside the purification coil cannot be discharged through the suction filter assembly, so it will enter the inside of the opening groove along the purification coil and overcome the elastic force of the blocking spring to connect the opening groove and the connection hole, so that the clean gas carrying dust and debris is directly discharged from the slag discharge port. This setting achieves the purpose of automatically cleaning the filter element without manual disassembly and removal of the filter element, solves the defect that the filter element for natural gas adsorption and filtration in the prior art needs to be regularly removed and cleaned, not only reduces the safety hazard, but also improves the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of the present invention;

[0028] Figure 2 is a sectional view of the structure of the present invention;

[0029] Figure 3 is the present invention Figure 2 magnified view of part A;

[0030] Figure 4 is the present invention Figure 2 magnified view of part B.

[0031] Reference numerals: 1, outer tank of the tower body; 2, inner tank of the tower body; 3, pressurizing port; 4, gas discharge port; 5, sealing baffle; 6, torsion spring; 7, opening groove; 8, blocking spring; 9, conical plug; 10, connection hole; 11, slag discharge port; 12, gas input port; 13, separation tube; 14, purification coil; 15, suction filter cylinder; 16, molecular sieve; 17, activated carbon; 18, drain funnel; 19, collection chamber; 20, movable door; 21, drain valve; 22, sealing ring; 23, support leg; 24, coil support; 25, duckbill groove; 26, inspection door; 27, handle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The present invention will be further described in detail below with reference to the accompanying drawings.

[0033] Embodiment 1:

[0034] Refer to Figure 1 , Figure 2 , Figure 3 and Figure 4, A gas purification adsorption device for FGSS marine gas processing, comprising an outer tower tank 1. Inside the outer tower tank 1, an inner tower tank 2 is installed, which is used to separate a cavity between the outer tower tank 1 and the inner tower tank 2, so as to pressurize the surface of the purification coil 14. A gas adsorption mechanism is arranged between the outer tower tank 1 and the inner tower tank 2. In the middle and bottom of one side of the outer tower tank 1, a pressurizing port 3 and a gas discharge port 4 used in cooperation with the gas adsorption machine are respectively opened, which are used to inject pressurized gas into the cavity and discharge the gas purified by the gas adsorption mechanism. One end of the pressurizing port 3 is provided with a sealing baffle 5 rotatably connected to the outer tower tank 1. Both sides of the sealing baffle 5 are fixedly connected with torsion springs 6 fixedly connected to the outer tower tank 1. The sealing baffle 5 rotates through the torsion springs 6 to seal the pressurizing port 3 or the gas discharge port 4. When the sealing baffle 5 is pushed by the gas injected through the pressurizing port 3, it will drive the torsion springs 6 to generate torsion and rotate, so as to seal the gas discharge port 4. At the same time, after the pressurized gas is discharged, the torsion of the torsion springs 6 will drive the sealing baffle 5 to reset to seal the pressurizing port 3. An opening groove 7 communicating with the gas adsorption mechanism is opened between the outer tower tank 1 and the inner tower tank 2. Inside the opening groove 7, a blocking spring 8 is installed. When the air pressure inside the cavity is relatively high, the clean gas inside the purification coil 14 cannot be discharged into the cavity. It can only overcome the elastic force of the blocking spring 8 through the conduction of the purification coil 14. The top of the blocking spring 8 is provided with a conical plug 9 slidably connected to the opening groove 7. By overcoming the elastic force of the blocking spring 8 by the pressure of the clean gas inside the purification coil 14, it slides downward, so as to connect the connection hole 10 and the purification coil 14 through the opening groove 7. A slag discharge port 11 is opened on the other side of the outer tower tank 1. A connection hole 10 communicating with the opening groove 7 and the slag discharge port 11 respectively is also opened between the outer tower tank 1 and the inner tower tank 2;

[0035] The gas adsorption mechanism includes a separation pipe 13 fixedly installed inside the inner tank 2 of the tower body. A gas input port 12 communicating with the separation pipe 13 is fixedly connected to the top of the outer tank 1 of the tower body. A drain funnel 18 communicating with the bottom of the separation pipe 13 is installed at the bottom of the outer tank 1 of the tower body. A purification coil 14 communicating with the separation pipe 13 and the opening groove 7 respectively is sleeved on the surface of the inner tank 2 of the tower body. A suction filtration component is installed on the surface of the purification coil 14. Natural gas is injected into the inside of the separation pipe 13 through the gas input port 12. Due to the twisted structure of the separation pipe 13, when the gas moves downward, moisture and some large-mass sundries fall into the inside of the drain funnel 18 due to gravity, while the natural gas can enter the inside of the purification coil 14 through the separation pipe 13. The suction filtration component includes a suction filtration cylinder 15 threadedly connected to the purification coil 14. A molecular sieve 16 is installed at one end of the suction filtration cylinder 15 close to the inside of the purification coil 14. Activated carbon 17 is installed inside the suction filtration cylinder 15. As the natural gas flows inside the purification coil 14, since the bottom of the purification coil 14 is blocked by the conical plug 9, the natural gas will be discharged through the suction filtration cylinder 15 and will be adsorbed and filtered by the molecular sieve 16 and the activated carbon 17 when passing through the suction filtration cylinder 15.

[0036] Air is pressurized and injected through the pressurization port 3, causing the air flow to blow the sealing baffle 5 to rotate. Thus, after the torsion spring 6 is twisted, the gas discharge port 4 is sealed. The gas is injected into the cavity between the outer tank 1 and the inner tank 2 of the tower body. Then, clean gas is injected into the inside of the separation pipe 13 through the gas input port 12. When the clean gas passes through the purification coil 14, the dust and sundries inside the suction filtration component are carried away. At the same time, due to the external air pressure, the clean gas inside the purification coil 14 cannot be discharged through the suction filtration component. Therefore, it will flow into the inside of the opening groove 7 along the purification coil 14 and, by overcoming the elastic force of the blocking spring 8, make the opening groove 7 communicate with the connection hole 10, so as to directly discharge the clean gas carrying dust and sundries from the slag discharge port 11. This setting achieves the purpose of automatically cleaning the filter element without the need for manual disassembly and removal of the filter element, solves the defect that the filter element for the existing natural gas adsorption and filtration needs to be regularly removed and cleaned, not only reduces the safety hazard, but also improves the cleaning efficiency.

[0037] Reference Figure 1 and Figure 2 A collection cavity 19 communicating with the drain funnel 18 is installed at the bottom of the outer tank 1 of the tower body. A movable door 20 is threadedly connected to one side of the collection cavity 19. Through the collection cavity 19, the moisture and large-mass sundries falling inside the drain funnel 18 can be collected, and at the same time, the sundries can be discharged by opening the movable door 20.

[0038] Reference Figure 1 and Figure 2, on the side of the collection chamber 19 away from the movable door 20, a drain valve 21 is fixedly connected. A sealing ring 22 is sleeved and adhered to the surface of the end of the drain valve 21 close to the collection chamber 19. Through the drain valve 21, the moisture inside the collection chamber 19 can be discharged, and at the same time, the sealing performance with the collection chamber 19 is improved.

[0039] Reference Figure 1 and Figure 2 , support legs 23 are installed at the four corners of the bottom of the outer tower tank 1. Anti-slip pads are adhered to the bottoms of the support legs 23 to support and fix the outer tower tank 1 and improve the stability of the outer tower tank 1.

[0040] Reference Figure 2 , a coil pipe support 24 used in cooperation with the purification coil pipe 14 is installed inside the outer tower tank 1 to support and limit the purification coil pipe 14 and improve the stability of the purification coil pipe 14.

[0041] Reference Figure 2 , a duckbill groove 25 used in cooperation with the separation pipe 13 is opened at the end of the gas input port 12 close to the outer tower tank 1. When natural gas enters the inside of the separation pipe 13 from the gas input port 12, it is compressed to increase the flow rate, thereby improving the adsorption and purification effect.

[0042] Reference Figure 1 , a maintenance door 26 is installed at one end of the surface of the outer tower tank 1. A handle 27 is installed on the side of the maintenance door 26 away from the outer tower tank 1, which is convenient for opening the outer tower tank 1 to repair the parts of the gas adsorption mechanism inside.

[0043] Reference Figure 1 and Figure 2 , flanges are installed at the ends of the pressurization port 3, the gas discharge port 4, and the slag discharge port 11 away from the outer tower tank 1, which is convenient for sealing connection with the gas pipeline system.

[0044] Working principle: When purifying and adsorbing natural gas, natural gas is input from the inside of the gas input port 12 and the liquid inside passes through the separation pipe 13 and is precipitated into the collection chamber 19 through the drain funnel 18. The gas part will enter the suction filter assembly along with the separation pipe 13. At this time, since there is a lack of gas inside the outer tower tank 1, when the air pressure inside the cavity of the outer tower tank 1 is insufficient, it cannot overcome the torsion of the torsion spring 6. The torsion of the torsion spring 6 will drive the sealing baffle 5 to seal the pressurization port 3 and open the gas discharge port 4, so that the natural gas can be filtered out from the suction filter assembly and the purified natural gas can be discharged through the gas discharge port 4. Since the suction filter assembly can directly discharge natural gas, the natural gas inside the purification coil pipe 14 cannot overcome the elastic force of the blocking spring 8 due to insufficient pressure, resulting in the separation of the purification coil pipe 14 and the opening groove 7 by the tapered plug 9, and thus the natural gas cannot be discharged through the slag discharge port 11.

[0045] Meanwhile, gas is reinjected through the pressure inlet 3 again for pressurization, so that the gas blows the sealing baffle 5 to rotate. Thus, after overcoming the torsion spring 6, the sealing baffle 5 twists to open the pressure inlet 3 and seal the gas discharge port 4, and the gas is injected into the cavity between the outer tank 1 and the inner tank 2 of the tower body. Then, clean gas is injected into the separation pipe 13 through the gas input port 12. When the pressure of the clean gas passes through the purification coil 14, the dust and debris inside the suction filter assembly are carried away. At the same time, due to the external air pressure, the clean gas inside the purification coil 14 cannot pass through the suction filter assembly, so it will enter the inside of the opening groove 7 along the purification coil 14, and by overcoming the elastic force of the blocking spring 8, the opening groove 7 and the connection hole 10 are communicated, so as to directly discharge the clean gas carrying dust and debris from the slag discharge port 11.

[0046] This specific embodiment is only an interpretation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A gas purification adsorption device for FGSS marine gas processing, comprising an outer tower tank (1), characterized in that, Inside the outer tower tank (1), an inner tower tank (2) is installed. A gas adsorption mechanism is arranged between the outer tower tank (1) and the inner tower tank (2). In the middle and bottom of one side of the outer tower tank (1), a pressurizing port (3) and a gas discharge port (4) which are used in cooperation with the gas adsorption machine are respectively opened. One end of the pressurizing port (3) is provided with a sealing baffle (5) rotatably connected to the outer tower tank (1). Both sides of the sealing baffle (5) are fixedly connected with torsion springs (6) fixedly connected to the outer tower tank (1). The sealing baffle (5) rotates through the torsion springs (6) to seal the pressurizing port (3) or the gas discharge port (4). An opening groove (7) communicating with the gas adsorption mechanism is opened between the outer tower tank (1) and the inner tower tank (2). A blocking spring (8) is installed inside the opening groove (7). The top of the blocking spring (8) is provided with a conical plug (9) slidably connected to the opening groove (7). A slag discharge port (11) is opened on the other side of the outer tower tank (1). A connecting hole (10) communicating with the opening groove (7) and the slag discharge port (11) respectively is also opened between the outer tower tank (1) and the inner tower tank (2); The gas adsorption mechanism includes a separation pipe (13) fixedly installed inside the inner tower tank (2). A gas input port (12) communicating with the separation pipe (13) is fixedly connected to the top of the outer tower tank (1). A drainage funnel (18) communicating with the bottom of the separation pipe (13) is installed at the bottom of the outer tower tank (1). A purification coil pipe (14) communicating with the separation pipe (13) and the opening groove (7) respectively is sleeved on the surface of the inner tower tank (2). A filtering component is installed on the surface of the purification coil pipe (14); The filtering component includes a filtering cylinder (15) threadedly connected to the purification coil pipe (14). A molecular sieve (16) is installed at one end of the filtering cylinder (15) close to the inside of the purification coil pipe (14). Activated carbon (17) is installed inside the filtering cylinder (15).

2. The gas purification adsorption device for FGSS marine gas processing according to claim 1, characterized in that, A collection chamber (19) communicating with the drainage funnel (18) is installed at the bottom of the outer tower tank (1). A movable door (20) is threadedly connected to one side of the collection chamber (19).

3. The gas purification adsorption device for FGSS marine gas processing according to claim 2, characterized in that, A liquid discharge valve (21) is fixedly communicated with the side of the collection chamber (19) away from the movable door (20). A sealing ring (22) is sleeved and adhered to the surface of the liquid discharge valve (21) close to one end of the collection chamber (19).

4. A gas purification adsorption device for FGSS marine gas processing according to claim 1, characterized in that, Support legs (23) are installed at the four corners of the bottom of the outer tower tank (1). Anti-slip pads are adhered to the bottoms of the support legs (23).

5. The gas purification adsorption device for FGSS marine gas processing according to claim 1, characterized in that, A coil support (24) used in cooperation with the purification coil pipe (14) is installed inside the outer tower tank (1).

6. The gas purification adsorption device for FGSS marine gas processing according to claim 1, wherein, A duckbill groove (25) used in cooperation with the separation pipe (13) is opened at one end of the gas input port (12) close to the outer tower tank (1).

7. A gas purification adsorption device for FGSS marine gas processing according to claim 1, characterized in that, An inspection door (26) is installed at one end of the surface of the outer tower tank (1). A handle (27) is installed on the side of the inspection door (26) away from the outer tower tank (1).

8. A gas purification adsorption device for FGSS marine gas processing according to claim 1, characterized in that, Flange plates are installed at one ends of the pressurizing port (3), the gas discharge port (4), and the slag discharge port (11) that are far away from the outer tank (1) of the tower.

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