Natural gas hydrogen production condensate deoxidizing device

Abstract

The utility model relates to the technical field of natural gas hydrogen production, in particular to a natural gas hydrogen production condensate deoxygenization device which comprises a horizontal deoxygenization device barrel, a lower half vertical barrel is connected above the horizontal deoxygenization device barrel, an upper half vertical barrel is arranged above the lower half vertical barrel, a stainless steel wire net is arranged in the lower half vertical barrel, and a lower half vertical barrel is arranged in the lower half vertical barrel. A condensate pump and a flow guide plate are arranged in the upper half vertical cylinder, a guide rod and a threaded rod are arranged on the lower surface of an upper top plate, the guide rod is slidably connected to a side square block, the bottom of the threaded rod is fixedly connected to the output end of a driving motor, and the driving motor is arranged on an outer ring; the device has the beneficial effects that carbon dioxide can be effectively removed from condensate, meanwhile, the split type vertical cylinder structure is adopted, the upper half vertical cylinder and the lower half vertical cylinder are convenient to separate and combine, and internal components of the upper half vertical cylinder and the lower half vertical cylinder are convenient to overhaul and clean.

Description

Technical Field

[0001] The utility model relates to the field of natural gas hydrogen production, in particular to a natural gas hydrogen production condensate deoxygenation device. Background Art

[0002] Hydrogen, with the chemical formula H2 and a molecular weight of 2.01588, is a highly flammable gas at room temperature and pressure. It is a colorless, transparent, odorless, tasteless and insoluble gas in water. Hydrogen is the smallest known gas in the world. Its density is only 1 / 14 of that of air, that is, at 101.325 kPa (1 standard atmospheric pressure) and 0°C, its density is 0.089 g / L. Therefore, hydrogen can be used as a filling gas for airships and hydrogen balloons (due to its flammability and low safety, airships are now mostly filled with helium). Hydrogen is a substance with the smallest relative molecular mass and strong reducing properties, and is often used as a reducing agent in chemical reactions.

[0003] In the prior art, in the natural gas hydrogen production process, in order to ensure that hydrocarbons participate in the steam reforming reaction as completely as possible, the steam is in excess. The excess steam dissolves the carbon dioxide produced by the system during the subsequent medium-temperature conversion reaction. The steam is discharged in the form of condensate before entering the PSA adsorption. If the condensate is directly discharged outside the system, it will cause waste. Therefore, this part of the condensate will be returned to the desalted water system in the hydrogen production process, but the condensate must pass through a deaerator to effectively remove carbon dioxide before it can be reused. For this reason, it is urgently necessary to design a new device to remove carbon dioxide from the condensate.

[0004] To this end, the utility model proposes a natural gas hydrogen production condensate deoxygenation device to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide a deoxygenation device for condensate from natural gas to hydrogen, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: a deoxygenation device for condensate produced from natural gas to hydrogen, the deoxygenation device for condensate produced from natural gas to hydrogen comprising: a horizontal deaerator cylinder, a lower half vertical cylinder is connected to the upper part of the horizontal deaerator cylinder, an upper half vertical cylinder is arranged above the lower half vertical cylinder, a stainless steel wire mesh is arranged inside the lower half vertical cylinder, and a condensate pump and a guide plate are arranged inside the upper half vertical cylinder;

[0007] An upper top plate, a guide rod and a threaded rod are arranged on the lower surface of the upper top plate, the guide rod is slidably connected to the side block, the bottom of the threaded rod is fixedly connected to the output end of the driving motor, and the driving motor is arranged on the outer ring.

[0008] Preferably, the surface of the horizontal deaerator cylinder is provided with a liquid level gauge, a sewage outlet, a deoxygenated water outlet, a desalted water inlet, a pressure gauge and a manhole, and a flange sealing disc is installed at the manhole by bolts.

[0009] Preferably, a handle is fixed on the surface of the flange sealing disk, and there are two groups of handles, which are symmetrically distributed about the central axis of the flange sealing disk. A rubber block is fixed on the inner surface of the handle, and there are several rubber blocks, which are evenly distributed inside the handle.

[0010] Preferably, a steam inlet is provided on the surface of the lower half vertical cylinder, and the steam inlet is located below the stainless steel wire mesh. An outer ring is fixed to the outer side of the lower half vertical cylinder.

[0011] Preferably, a guide rod is fixed on the outer ring, the upper end of the guide rod is fixedly connected to the upper top plate, two groups of guide rods are provided, and the two groups of guide rods are symmetrically distributed about the central axis of the outer ring. A slot is opened at the upper end of the lower semi-vertical cylinder, and an anti-corrosion sealing gasket is laid in the slot.

[0012] Preferably, the upper half vertical cylinder is located directly above the lower half vertical cylinder, and a condensate inlet and a vent are provided on the surface of the upper half vertical cylinder. Side blocks and a connecting plate are fixed on the surface of the upper half vertical cylinder. Two groups of side blocks are provided, and the two groups of side blocks are symmetrically distributed about the central axis of the upper half vertical cylinder. The connecting plate and the threaded rod are screwed, and the upper end of the threaded rod is rotatably connected to the upper top plate.

[0013] Preferably, the condensate pump is located above the guide plate, the condensate pump is connected to the condensate inlet, a nozzle is provided on the lower surface of the guide plate, there are several nozzles, the nozzles are evenly distributed on the lower surface of the guide plate, and through holes are opened in the gaps between the nozzles.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model proposes a natural gas hydrogen production condensate deoxygenation device, which can effectively remove carbon dioxide from the condensate. At the same time, a split vertical cylinder structure is adopted, and the upper vertical cylinder and the lower vertical cylinder are easy to separate and combine, so that the internal components of the upper vertical cylinder and the lower vertical cylinder can be easily inspected and cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a side view of the structure of the utility model;

[0018] Figure 3 This is a detailed diagram of the structure of the utility model;

[0019] Figure 4This is a schematic diagram of the upper half vertical cylinder structure of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the nozzle of the utility model.

[0021] In the figure: 1. guide rod; 2. vent; 3. upper half of vertical cylinder; 4. condensate inlet; 5. outer ring;

[0022] 6. Steam inlet; 7. Horizontal deaerator cylinder; 8. Liquid level gauge; 9. Drain port; 10. Lower half vertical cylinder; 11. Deoxygenated water outlet; 12. Manhole; 13. Flange sealing disc; 14. Handle; 15. Desalted water inlet; 16. Pressure gauge; 17. Drive motor; 18. Side block; 19. Threaded rod; 20. Upper top plate;

[0023] 21. Connecting plate; 22. Rubber block; 23. Stainless steel wire mesh; 24. Slot; 25. Anti-corrosion sealing pad;

[0024] 26. Insert plate; 27. Guide plate; 28. Nozzle; 29. ​​Through hole; 30. Condensate pump. DETAILED DESCRIPTION

[0025] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of 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.

[0026] Embodiment 1

[0027] See also Figure 1-Figure 5 The utility model provides a technical solution: a deoxygenation device for condensate produced from natural gas to hydrogen, the deoxygenation device for condensate produced from natural gas to hydrogen comprising: a horizontal deaerator cylinder 7, a lower half vertical cylinder 10 is connected to the upper part of the horizontal deaerator cylinder 7, an upper half vertical cylinder 3 is arranged above the lower half vertical cylinder 10, a stainless steel wire mesh 23 is arranged inside the lower half vertical cylinder 10, and a condensate pump 30 and a guide plate 27 are arranged inside the upper half vertical cylinder 3;

[0028] An upper top plate 20, the lower surface of which is provided with a guide rod 1 and a threaded rod 19, the guide rod 1 is slidably connected to the side block 18, the bottom of the threaded rod 19 is fixedly connected to the output end of the drive motor 17, and the drive motor 17 is provided on the outer ring 5;

[0029] The condensate pump 30 is located above the guide plate 27, and the condensate pump 30 is connected to the condensate inlet 4. A nozzle 28 is provided on the lower surface of the guide plate 27. There are a plurality of nozzles 28, and the nozzles 28 are evenly distributed on the lower surface of the guide plate 27. A through hole 29 is provided in the gap between the nozzles 28.

[0030] During use, when the condensate in the hydrogen production process is introduced into the device from the condensate inlet 4, the condensate is transported to the nozzle 28 through the condensate pump 30, and the condensate is released from top to bottom through the nozzle 28, and then dispersed and flows downward when passing through the stainless steel wire, and then the steam generated in the hydrogen production process is introduced from the steam inlet 6 below. The condensate heats up and vaporizes when it contacts the steam, and the carbon dioxide therein precipitates and is discharged through the discharge hole. The through hole 29 is provided to facilitate the circulation of the gas. When the condensate steam moves upward, it will condense when it encounters the stainless steel wire, and finally flow to the lower part in the form of liquid water, which is the horizontal deaerator cylinder 7, and the desalted water is introduced through the desalted water inlet 15. The deoxygenated condensate is mixed with the desalted water introduced therein in the horizontal deaerator cylinder 7, and flows out of the device through the deoxygenated water outlet 11 for use at the rear end.

[0031] Embodiment 2

[0032] On the basis of the first embodiment, a steam inlet 6 is provided on the surface of the lower half vertical cylinder 10, and the steam inlet 6 is located below the stainless steel wire mesh 23. An outer ring 5 is fixed on the outer side of the lower half vertical cylinder 10.

[0033] A guide rod 1 is fixed on the outer ring 5, and the upper end of the guide rod 1 is fixedly connected to the upper top plate 20. There are two groups of guide rods 1, and the two groups of guide rods 1 are symmetrically distributed about the central axis of the outer ring 5. A slot 24 is opened at the upper end of the lower semi-vertical cylinder 10, and an anti-corrosion sealing gasket 25 is laid in the slot 24.

[0034] The upper half vertical cylinder 3 is located directly above the lower half vertical cylinder 10. The surface of the upper half vertical cylinder 3 is provided with a condensate inlet 4 and a vent 2. The surface of the upper half vertical cylinder 3 is fixed with side blocks 18 and a connecting plate 21. The side blocks 18 are provided with two groups. The two groups of side blocks 18 are symmetrically distributed about the central axis of the upper half vertical cylinder 3. The connecting plate 21 is screwed to the threaded rod 19. The upper end of the threaded rod 19 is rotatably connected to the upper top plate 20.

[0035] During use, after long-term use of the device, condensate may accumulate at the nozzle 28, and the stainless steel wire mesh 23 needs to be cleaned. By starting the drive motor 17, the output end of the drive motor 17 will drive the threaded rod 19 to rotate, thereby causing the connecting half screwed with the threaded rod 19 to move upward, and at the same time driving the upper half vertical cylinder 3 to move upward, so that the plug plate 26 is pulled out of the slot 24, and the upper half vertical cylinder 3 and the lower half vertical cylinder 10 are separated, which is convenient for maintenance and cleaning;

[0036] The two sets of guide rods 1 and side blocks 18 can provide stable support and guidance for the movement of the upper half vertical cylinder 3, thereby improving the stability and continuity of the movement of the upper half vertical cylinder 3. The anti-corrosion sealing gasket 25 can improve the airtightness of the connection between the upper half vertical cylinder 3 and the lower half vertical cylinder 10.

[0037] Embodiment 3

[0038] On the basis of the second embodiment, the surface of the horizontal deaerator cylinder 7 is provided with a liquid level gauge 8, a sewage outlet 9, a deoxygenated water outlet 11, a desalted water inlet 15, a pressure gauge 16 and a manhole 12, and a flange sealing plate 13 is installed at the manhole 12 by bolts;

[0039] A handle 14 is fixed on the surface of the flange sealing disk 13. The handle 14 is provided in two groups. The two groups of handles 14 are symmetrically distributed about the central axis of the flange sealing disk 13. A rubber block 22 is fixed on the inner surface of the handle 14. The rubber block 22 is provided in a plurality and the plurality of rubber blocks 22 are evenly distributed inside the handle 14.

[0040] When in use, the liquid level meter 8 is used to monitor the amount of liquid in the cylinder, the pressure gauge 16 is used to monitor the pressure value in the cylinder, and the vent 2 is used to release pressure conveniently. The manhole 12 is convenient for inspection and maintenance of the inside of the cylinder. The rubber block 22 arranged inside the handle 14 can provide a buffer to improve the stability when pulling the handle 14.

[0041] In actual use, when the condensate in the hydrogen production process is introduced into the device from the condensate inlet 4, the condensate is transported to the nozzle 28 through the condensate pump 30, and the condensate is released from the top to the bottom through the nozzle 28, and then dispersed and flows downward when passing through the stainless steel wire, and then the steam generated in the hydrogen production process is introduced from the steam inlet 6 below. When the condensate contacts the steam, it heats up and gasifies, and the carbon dioxide therein is precipitated and discharged through the discharge hole. The through hole 29 is provided to facilitate the circulation of the gas. When the condensate steam moves upward, it will condense when it encounters the stainless steel wire, and finally flow to the lower part in the form of liquid water as a horizontal Desalted water is introduced into the cylinder 7 of the horizontal deaerator through the desalted water inlet 15, and the deoxygenated condensate is mixed with the desalted water introduced therein in the cylinder 7 of the horizontal deaerator, and flows out of the device through the deoxygenated water outlet 11 for use by the rear end. By starting the drive motor 17, the output end of the drive motor 17 will drive the threaded rod 19 to rotate, thereby causing the connecting half screwed to the threaded rod 19 to move upward, and at the same time driving the upper half of the vertical cylinder 3 to move upward, so that the plug plate 26 is pulled out of the slot 24, thereby realizing the separation of the upper half of the vertical cylinder 3 and the lower half of the vertical cylinder 10, which is convenient for maintenance and cleaning.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A deoxygenation device for condensate from natural gas to hydrogen production, characterized in that: The natural gas hydrogen production condensate deoxygenation device comprises: a horizontal deaerator cylinder (7), a lower half vertical cylinder (10) is connected to the top of the horizontal deaerator cylinder (7), an upper half vertical cylinder (3) is arranged above the lower half vertical cylinder (10), a stainless steel wire mesh (23) is arranged inside the lower half vertical cylinder (10), and a condensate pump (30) and a guide plate (27) are arranged inside the upper half vertical cylinder (3); An upper top plate (20) is provided with a guide rod (1) and a threaded rod (19) on the lower surface of the upper top plate (20), the guide rod (1) is slidably connected to the side block (18), the bottom of the threaded rod (19) is fixedly connected to the output end of the drive motor (17), and the drive motor (17) is arranged on the outer ring (5).

2. A natural gas hydrogen production condensate deoxygenation device according to claim 1, characterized in that: The surface of the horizontal deaerator cylinder (7) is provided with a liquid level meter (8), a sewage outlet (9), a deoxygenated water outlet (11), a desalted water inlet (15), a pressure gauge (16) and a manhole (12), and a flange sealing plate (13) is installed at the manhole (12) by bolts.

3. A natural gas hydrogen production condensate deoxygenation device according to claim 2, characterized in that: A handle (14) is fixed on the surface of the flange sealing disk (13), and two groups of handles (14) are provided. The two groups of handles (14) are symmetrically distributed about the central axis of the flange sealing disk (13). A rubber block (22) is fixed on the inner surface of the handle (14), and a plurality of rubber blocks (22) are provided. The plurality of rubber blocks (22) are evenly distributed inside the handle (14).

4. A natural gas hydrogen production condensate deoxygenation device according to claim 1, characterized in that: A steam inlet (6) is provided on the surface of the lower half vertical cylinder (10), and the steam inlet (6) is located below the stainless steel wire mesh (23). An outer ring (5) is fixed to the outer side of the lower half vertical cylinder (10).

5. A natural gas hydrogen production condensate deoxygenation device according to claim 4, characterized in that: A guide rod (1) is fixed on the outer ring (5), the upper end of the guide rod (1) is fixedly connected to the upper top plate (20), two groups of guide rods (1) are provided, and the two groups of guide rods (1) are symmetrically distributed about the central axis of the outer ring (5), and a slot (24) is opened at the upper end of the lower semi-vertical cylinder (10), and an anti-corrosion sealing gasket (25) is laid in the slot (24).

6. A natural gas hydrogen production condensate deoxygenation device according to claim 1, characterized in that: The upper half vertical cylinder (3) is located directly above the lower half vertical cylinder (10), and a condensate inlet (4) and a vent (2) are arranged on the surface of the upper half vertical cylinder (3). Side blocks (18) and a connecting plate (21) are fixed on the surface of the upper half vertical cylinder (3). Two groups of side blocks (18) are provided, and the two groups of side blocks (18) are symmetrically distributed about the central axis of the upper half vertical cylinder (3). The connecting plate (21) and the threaded rod (19) are screwed together, and the upper end of the threaded rod (19) is rotatably connected to the upper top plate (20).

7. A natural gas hydrogen production condensate deoxygenation device according to claim 1, characterized in that: The condensate pump (30) is located above the guide plate (27), and the condensate pump (30) is connected to the condensate inlet (4). A nozzle (28) is provided on the lower surface of the guide plate (27). A plurality of nozzles (28) are provided, and the plurality of nozzles (28) are evenly distributed on the lower surface of the guide plate (27). Through holes (29) are provided in the gaps between the nozzles (28).

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