Gas separation device based on solid oxide fuel cell

Abstract

The invention provides a gas separation device based on a solid oxide fuel cell, and relates to the field of gas separation, the gas separation device comprises two treatment tanks, and the two treatment tanks are both fixedly mounted on the upper end surface of a bottom plate; the number of the connecting pipes is two, and the two connecting pipes are fixedly connected to the outer sides of the two treatment tanks respectively; the number of the connecting flanges is two, and the two connecting flanges are fixedly connected to the outer sides of the two connecting pipes correspondingly. The sealing washers are mounted on the inner sides of the two connecting flanges; a plurality of first fastening bolts are arranged, and the plurality of first fastening bolts are respectively inserted into the inner sides of the two connecting flanges, so that the problem that in the actual operation of the gas separation device of the current solid oxide fuel cell, once leakage occurs at the joint of equipment pipelines, serious safety accidents such as fire disasters, explosions or personnel poisoning are possibly caused is solved; and great threats are caused to the life safety of personnel and the normal operation of equipment, and the safety is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of gas separation, and in particular to a gas separation device based on a solid oxide fuel cell. Background Art

[0002] In the solid oxide fuel cell system, the gas separation device is a very important component. It is mainly used to separate and purify the reaction gas to ensure that the fuel gas supplied to the anode is of high purity. At the same time, the oxidant at the cathode is properly treated. This can improve the reaction efficiency of the battery and reduce the damage of impurity gases to the electrodes and electrolytes, thereby extending the service life of the battery.

[0003] According to the application number: CN200910053755.7, a one-step pressure swing adsorption device for purifying hydrogen for fuel cell hydrogen supply is disclosed, which belongs to the field of energy and gas separation technology. The invention comprises two adsorption towers, four three-way joints, two pressure gauges, six reversing valves, a raw gas tank, a vacuum pump, and a hydrogen collection tank. Three selective adsorbents, namely Al2O3, activated carbon, and molecular sieve, are loaded in the first adsorption tower and the second adsorption tower in order from bottom to top. When the hydrogen-rich gas passes through the pressure swing adsorption device, the three adsorbents can remove CO, CH4, CO2, and H2O in one step. Two towers are used for pressure swing adsorption, and pressure adsorption and pressure reduction desorption are carried out simultaneously, which can continuously output H2. The invention adopts a one-step method to treat impurity gas, which greatly shortens the purification process, makes the CO content lower than 10×10-6, is simple to operate, and has low energy consumption. It can provide high-purity H2 for direct use in fuel cells.

[0004] However, in the actual operation of the gas separation device of the current solid oxide fuel cell, once a leak occurs at the equipment pipeline connection, it is often difficult to detect and deal with it in time. Since these gases are mostly flammable, explosive or toxic and harmful, if the leakage hidden dangers are not eliminated in time, it is very likely to cause serious safety accidents such as fire, explosion or poisoning of personnel, posing a great threat to the safety of personnel life and the normal operation of equipment. Summary of the invention

[0005] In view of this, the present invention provides a gas separation device based on a solid oxide fuel cell, which has the advantages of improving safety and working efficiency.

[0006] The present invention provides a gas separation device based on a solid oxide fuel cell, which specifically includes a base plate, a processing tank, a connecting pipe, a connecting flange, a sealing gasket, a first fastening bolt, a first fastening nut, a detection mechanism and a quick-change mechanism; two processing tanks are provided, and the two processing tanks are fixedly installed on the upper end surface of the base plate; two connecting pipes are provided, and the two connecting pipes are respectively fixedly connected to the outsides of the two processing tanks; two connecting flanges are provided, and the two connecting flanges are respectively fixedly connected to the outsides of the two connecting pipes; the sealing gasket is installed on the inner sides of the two connecting flanges; a plurality of first fastening bolts are provided, and the plurality of first fastening nuts are respectively inserted into the inner sides of the two connecting flanges; a plurality of first fastening nuts are provided, and the plurality of first fastening nuts are respectively threadedly connected to the outsides of the plurality of first fastening bolts; the detection mechanism is arranged on the outside of the connecting pipe; the quick-change mechanism is arranged on the outside of the connecting pipe.

[0007] Furthermore, the detection mechanism includes: a sealing shell, a connecting plate, a sealing half ring, a second fastening bolt and a second fastening nut; the sealing shells are provided with two, the two sealing shells are hinged to each other, and the two sealing shells are respectively covered on the outer sides of the two connecting flanges; the connecting plates are provided with two, the two connecting plates are respectively fixedly connected to the outer sides of the two sealing shells; the sealing half rings are provided with two, the two sealing half rings are respectively fixedly connected to the inner sides of the two sealing shells; the second fastening bolts are provided with two, the two second fastening bolts are respectively inserted into the inner sides of the two connecting plates; the second fastening nuts are provided with two, the two second fastening nuts are respectively threadedly connected to the outer sides of the two second fastening bolts.

[0008] Furthermore, the detection mechanism also includes: a sensor, a fixed shell, a control switch and an alarm; the sensor is fixedly connected to the outside of the sealed shell; the fixed shell is provided with two, and the two fixed shells are respectively fixedly connected to the outsides of the two connecting tubes; the control switch is fixedly connected to the outside of the fixed shell, and the control switch is electrically connected to the sensor; the alarm is provided with two, and the two alarms are respectively fixedly connected to the upper end surfaces of the two fixed shells, and both alarms are electrically connected to the control switch.

[0009] Furthermore, the detection mechanism also includes: a driving motor, a switching valve, a fixed bevel gear and a driving bevel gear; the driving motor is provided with two, the two driving motors are respectively fixedly mounted on the upper end surfaces of the two fixed shells, and the two driving motors are electrically connected to the control switch; the switching valve is provided with two, the two switching valves are respectively fixedly mounted on the inner sides of the two connecting pipes; the fixed bevel gear is provided with two, the two fixed bevel gears are respectively fixedly connected to the upper end surfaces of the two switching valves; the driving bevel gear is provided with two, the two driving bevel gears are respectively fixedly connected to the outer sides of the rotating shafts of the two driving motors, and the two driving bevel gears are respectively meshed with the two fixed bevel gears.

[0010] Furthermore, the quick-change mechanism includes: a fixed block, a limit slider, a connecting block and a limit spring; there are multiple fixed blocks, and the multiple fixed blocks are fixedly connected to the outside of the connecting tube; there are multiple limit sliders, and the multiple limit sliders are respectively slidably connected to the inner sides of the multiple fixed blocks; there are multiple connecting blocks, and the multiple connecting blocks are respectively fixedly connected to the outsides of the multiple limit sliders; there are multiple limit springs, one end of the multiple limit springs is respectively fixedly connected to the outsides of the multiple limit sliders, and the other ends of the multiple limit springs are respectively fixedly connected to the inner sides of the multiple fixed blocks.

[0011] Furthermore, the quick-change mechanism also includes: a quick-change ring, a connecting sleeve and a fixed baffle; the quick-change ring is slidably connected to the outside of the connecting tube; there are multiple connecting sleeves, and the multiple connecting sleeves are rotatably connected to the inner side of the quick-change ring; there are multiple fixed baffles, and the multiple fixed baffles are respectively fixedly connected to the inner sides of the multiple connecting sleeves.

[0012] Furthermore, the quick-change mechanism also includes: a connecting gear and a connecting gear ring; the connecting gear is provided in plurality, and the plurality of connecting gears are respectively fixedly connected to the outsides of a plurality of connecting sleeves; the connecting gear ring is rotatably connected to the inside of the quick-change ring, and the connecting gear ring is meshed with the connecting gear.

[0013] Furthermore, the quick-change mechanism also includes: a bevel gear ring, a connecting bevel gear and an operating member; the bevel gear ring is fixedly connected to the outer side of the connecting gear ring; the connecting bevel gear is rotatably connected to the inner side of the quick-change ring, and the connecting bevel gear is meshed with the bevel gear ring; the operating member is fixedly connected to the outer side of the connecting bevel gear.

[0014] Beneficial effect: The present invention realizes the detection of gas leakage through the setting of the detection mechanism. When the sealing gasket ages and causes leakage, the sensor detects the leaked gas and transmits a signal to the control switch. At this time, the control switch will connect the power supply of the alarm and the drive motor, making the alarm sound as a prompt. At the same time, the drive motor will start and drive the switch valve to close under the action of the engagement of the drive bevel gear and the fixed bevel gear, thereby preventing gas leakage and improving safety.

[0015] In addition, the quick-change mechanism is used to quickly inspect the connection. By inserting the connecting sleeve on the outside of the first fastening nut and using a tool to rotate the operating part, the operating part will drive the connecting gear ring to rotate through the meshing of the connecting bevel gear and the bevel gear ring. The rotation of the connecting gear ring will drive the connecting sleeve to rotate due to the meshing with the connecting gear, so that the first fastening nut can be disassembled or installed, thereby improving work efficiency.

[0016] In addition, through the arrangement of the above-mentioned mechanism, the detection of gas leakage is realized, the safety is improved, and the rapid maintenance of the connection is realized, which improves the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0018] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0019] In the attached picture: Figure 1 It is a schematic structural diagram of the main body of an embodiment of the present invention.

[0020] Figure 2 Schematic diagram of the structure of a sealed housing according to an embodiment of the present invention.

[0021] Figure 3 Schematic diagram of the structure of a sealing gasket according to an embodiment of the present invention.

[0022] Figure 4 1 is a schematic structural diagram of a fixed bevel gear according to an embodiment of the present invention.

[0023] Figure 5 The embodiment of the present invention Figure 1 Schematic diagram of the structure with a partial enlargement at point A in the middle.

[0024] Figure 6 Schematic diagram of the structure of the sealing half ring of an embodiment of the present invention.

[0025] Figure 7 It is a schematic structural diagram of a cross-section of a quick-change ring according to an embodiment of the present invention.

[0026] Figure 8 It is a schematic structural diagram of a connecting gear according to an embodiment of the present invention.

[0027] Fig. 9 The embodiment of the present invention Figure 3 Schematic diagram of the structure with a partial enlargement at point B in the middle.

[0028] Reference numerals list 1. Base plate; 2. Processing tank; 3. Connecting pipe; 4. Connecting flange; 5. Sealing gasket; 6. First fastening bolt; 7. First fastening nut; 8. Sealing housing; 801. Connecting plate; 802. Sealing half ring; 9. Second fastening bolt; 10. Second fastening nut; 11. Sensor; 12. Fixed housing; 13. Control switch; 14. Alarm; 15. Driving motor; 16. Switch valve; 17. Fixed bevel gear; 18. Driving bevel gear; 19. Fixed block; 20. Limiting slider; 2001. Connecting block; 2002. Limiting spring; 21. Quick-change ring; 22. Connecting sleeve; 2201. Fixed baffle; 2202. Connecting gear; 23. Connecting gear ring; 24. Bevel gear ring; 25. Connecting bevel gear; 26. Operating part. DETAILED DESCRIPTION

[0029] Example 1: Please refer to Figure 1-Figure 6 As shown: The present invention provides a gas separation device based on a solid oxide fuel cell, comprising a base plate 1, a processing tank 2, a connecting pipe 3, a connecting flange 4, a sealing gasket 5, a first fastening bolt 6, a first fastening nut 7 and a detection mechanism; two processing tanks 2 are provided, and the two processing tanks 2 are fixedly installed on the upper end surface of the base plate 1; two connecting pipes 3 are provided, and the two connecting pipes 3 are respectively fixedly connected to the outsides of the two processing tanks 2; two connecting flanges 4 are provided, and the two connecting flanges 4 are respectively fixedly connected to the outsides of the two connecting pipes 3; the sealing gasket 5 is installed on the inner sides of the two connecting flanges 4; a plurality of first fastening bolts 6 are provided, and the plurality of first fastening bolts 6 are respectively inserted into the inner sides of the two connecting flanges 4; a plurality of first fastening nuts 7 are provided, and the plurality of first fastening nuts 7 are respectively threadedly connected to the outsides of the plurality of first fastening bolts 6; the detection mechanism is arranged on the outer side of the connecting pipe 3.

[0030] Among them, the detection mechanism includes: a sealing shell 8, a connecting plate 801, a sealing half ring 802, a second fastening bolt 9, a second fastening nut 10, a sensor 11, a fixed shell 12, a control switch 13, an alarm 14, a drive motor 15, a switch valve 16, a fixed bevel gear 17 and a drive bevel gear 18; there are two sealing shells 8, the two sealing shells 8 are hinged to each other, and the two sealing shells 8 are respectively covered on the outside of the two connecting flanges 4; there are two connecting plates 801, and the two connecting plates 801 are respectively fixedly connected to the outside of the two sealing shells 8; there are two sealing half rings 802, and the two sealing half rings 802 are respectively fixedly connected to the inner sides of the two sealing shells 8; there are two second fastening bolts 9, and the two second fastening bolts 9 are respectively inserted into the inner sides of the two connecting plates 801; there are two second fastening nuts 10, and the two second fastening nuts 10 are respectively threadedly connected to the outside of the two second fastening bolts 9; the sensor 11 is fixedly connected to the outside of the sealing shell 8; the fixed shell There are two 12s, and the two fixed shells 12 are fixedly connected to the outside of the two connecting pipes 3 respectively; the control switch 13 is fixedly connected to the outside of the fixed shell 12, and the control switch 13 is electrically connected to the sensor 11; there are two alarms 14, and the two alarms 14 are fixedly connected to the upper end surfaces of the two fixed shells 12 respectively, and the two alarms 14 are electrically connected to the control switch 13; there are two drive motors 15, and the two drive motors 15 are fixedly installed on the upper end surfaces of the two fixed shells 12 respectively, and the two drive motors 15 are electrically connected to the control switch 13; there are two switch valves 16, and the two switch valves 16 are fixedly installed on the inner sides of the two connecting pipes 3 respectively; there are two fixed bevel gears 17, and the two fixed bevel gears 17 are fixedly connected to the upper end surfaces of the two switch valves 16 respectively; there are two drive bevel gears 18, and the two drive bevel gears 18 are fixedly connected to the outsides of the rotating shafts of the two drive motors 15 respectively, and the two drive bevel gears 18 are meshed with the two fixed bevel gears 17 respectively.

[0031] Specific usage and function of this embodiment: when the sealing gasket 5 ages and causes leakage, the sensor 11 detects the leaked gas and transmits a signal to the control switch 13. At this time, the control switch 13 will connect the power supply of the alarm 14 and the drive motor 15, so that the alarm 14 will sound as a prompt. At the same time, the drive motor 15 will start and drive the switch valve 16 to close under the action of the engagement of the drive bevel gear 18 and the fixed bevel gear 17 to prevent gas leakage.

[0032] Embodiment 2: Based on Embodiment 1, Figure 7-Figure 9As shown, the quick-change mechanism includes: a fixed block 19, a limit slider 20, a connecting block 2001, a limit spring 2002, a quick-change ring 21, a connecting sleeve 22, a fixed baffle 2201, a connecting gear 2202, a connecting gear ring 23, a bevel gear ring 24, a connecting bevel gear 25 and an operating member 26; the quick-change mechanism is arranged on the outside of the connecting tube 3; there are multiple fixed blocks 19, and the multiple fixed blocks 19 are fixedly connected to the outside of the connecting tube 3; there are multiple limit sliders 20, and the multiple limit sliders 20 are respectively slidably connected to the inner sides of the multiple fixed blocks 19; there are multiple connecting blocks 2001, and the multiple connecting blocks 2001 are respectively fixedly connected to the outsides of the multiple limit sliders 20; there are multiple limit springs 2002, and one end of the multiple limit springs 2002 is respectively fixedly connected to the outsides of the multiple limit sliders 20, and the multiple limit springs 2002 The other ends are respectively fixedly connected to the inner sides of multiple fixed blocks 19; the quick-change ring 21 is slidably connected to the outer side of the connecting pipe 3; there are multiple connecting sleeves 22, and the multiple connecting sleeves 22 are rotatably connected to the inner side of the quick-change ring 21; there are multiple fixed baffles 2201, and the multiple fixed baffles 2201 are respectively fixedly connected to the inner sides of multiple connecting sleeves 22; there are multiple connecting gears 2202, and the multiple connecting gears 2202 are respectively fixedly connected to the outer sides of multiple connecting sleeves 22; the connecting gear ring 23 is rotatably connected to the inner side of the quick-change ring 21, and the connecting gear ring 23 is meshed with the connecting gear 2202; the bevel gear ring 24 is fixedly connected to the outer side of the connecting gear ring 23; the connecting bevel gear 25 is rotatably connected to the inner side of the quick-change ring 21, and the connecting bevel gear 25 is meshed with the bevel gear ring 24; the operating member 26 is fixedly connected to the outer side of the connecting bevel gear 25.

[0033] The specific usage and function of this embodiment are as follows: by inserting the connecting sleeve 22 into the outside of the first fastening nut 7 and using a tool to rotate the operating member 26, the operating member 26 will drive the connecting gear ring 23 to rotate through the engagement of the connecting bevel gear 25 and the bevel gear ring 24. The rotation of the connecting gear ring 23 will drive the connecting sleeve 22 to rotate under the action of the engagement with the connecting gear 2202, thereby disassembling or installing the first fastening nut 7.

[0034] In this article, there are a few points to note: 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0035] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0036] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A gas separation device based on a solid oxide fuel cell, comprising a base plate (1), a processing tank (2), a connecting pipe (3), a connecting flange (4), a sealing gasket (5), a first fastening bolt (6), a first fastening nut (7), a detection mechanism and a quick-change mechanism; the processing tank (2) is provided with two, and the two processing tanks (2) are fixedly mounted on the upper end surface of the base plate (1); the connecting pipe (3) is provided with two, and the two connecting pipes (3) are respectively fixedly connected to the outer sides of the two processing tanks (2); characterized in that: The connecting flanges (4) are provided with two, and the two connecting flanges (4) are respectively fixedly connected to the outsides of the two connecting pipes (3); the sealing gaskets (5) are installed on the insides of the two connecting flanges (4); the first fastening bolts (6) are provided with a plurality, and the plurality of first fastening bolts (6) are respectively inserted into the insides of the two connecting flanges (4); the first fastening nuts (7) are provided with a plurality, and the plurality of first fastening nuts (7) are respectively threadedly connected to the outsides of the plurality of first fastening bolts (6); the detection mechanism is arranged on the outside of the connecting pipe (3); and the quick-change mechanism is arranged on the outside of the connecting pipe (3).

2. A gas separation device based on a solid oxide fuel cell as claimed in claim 1, characterized in that: The detection mechanism comprises: a sealing shell (8), a connecting plate (801), a sealing half ring (802), a second fastening bolt (9) and a second fastening nut (10); the sealing shell (8) is provided with two, the two sealing shells (8) are hinged to each other, and the two sealing shells (8) are respectively covered on the outside of two connecting flanges (4); the connecting plates (801) are provided with two, and the two connecting plates (801) are respectively fixedly connected to the outside of the two sealing shells (8); the sealing half ring (802) is provided with two, and the two sealing half rings (802) are respectively fixedly connected to the inside of the two sealing shells (8); the second fastening bolts (9) are provided with two, and the two second fastening bolts (9) are respectively inserted into the inside of the two connecting plates (801); the second fastening nuts (10) are provided with two, and the two second fastening nuts (10) are respectively threadedly connected to the outside of the two second fastening bolts (9).

3. A gas separation device based on a solid oxide fuel cell as claimed in claim 2, characterized in that: The detection mechanism further comprises: a sensor (11), a fixed housing (12), a control switch (13) and an alarm (14); the sensor (11) is fixedly connected to the outside of the sealed housing (8); two fixed housings (12) are provided, and the two fixed housings (12) are respectively fixedly connected to the outside of the two connecting pipes (3); the control switch (13) is fixedly connected to the outside of the fixed housing (12), and the control switch (13) is electrically connected to the sensor (11); and two alarms (14) are provided, and the two alarms (14) are respectively fixedly connected to the upper end surfaces of the two fixed housings (12), and the two alarms (14) are both electrically connected to the control switch (13).

4. A gas separation device based on a solid oxide fuel cell as claimed in claim 3, characterized in that: The detection mechanism further comprises: a drive motor (15), a switch valve (16), a fixed bevel gear (17) and a drive bevel gear (18); the drive motor (15) is provided with two, the two drive motors (15) are respectively fixedly mounted on the upper end surfaces of the two fixed housings (12), and the two drive motors (15) are electrically connected to the control switch (13); the switch valve (16) is provided with two, the two switch valves (16) are respectively fixedly mounted on the inner sides of the two connecting pipes (3); the fixed bevel gear (17) is provided with two, the two fixed bevel gears (17) are respectively fixedly connected to the upper end surfaces of the two switch valves (16); the drive bevel gear (18) is provided with two, the two drive bevel gears (18) are respectively fixedly connected to the outer sides of the rotating shafts of the two drive motors (15), and the two drive bevel gears (18) are respectively meshed with the two fixed bevel gears (17).

5. A gas separation device based on a solid oxide fuel cell as claimed in claim 1, characterized in that: The quick-change mechanism comprises: a fixed block (19), a limiting slider (20), a connecting block (2001) and a limiting spring (2002); a plurality of the fixed blocks (19) are provided, and the plurality of fixed blocks (19) are fixedly connected to the outside of the connecting tube (3); a plurality of the limiting sliders (20) are provided, and the plurality of limiting sliders (20) are respectively slidably connected to the inside of the plurality of fixed blocks (19); a plurality of the connecting blocks (2001) are provided, and the plurality of connecting blocks (2001) are respectively fixedly connected to the outside of the plurality of limiting sliders (20); a plurality of limiting springs (2002) are provided, and one end of the plurality of limiting springs (2002) is respectively fixedly connected to the outside of the plurality of limiting sliders (20), and the other end of the plurality of limiting springs (2002) is respectively fixedly connected to the inside of the plurality of fixed blocks (19).

6. A gas separation device based on a solid oxide fuel cell as claimed in claim 5, characterized in that: The quick-change mechanism further comprises: a quick-change ring (21), a connecting sleeve (22) and a fixed baffle (2201); the quick-change ring (21) is slidably connected to the outside of the connecting tube (3); a plurality of connecting sleeves (22) are provided, and the plurality of connecting sleeves (22) are all rotatably connected to the inside of the quick-change ring (21); a plurality of fixed baffles (2201) are provided, and the plurality of fixed baffles (2201) are respectively fixedly connected to the inside of the plurality of connecting sleeves (22).

7. A gas separation device based on a solid oxide fuel cell as claimed in claim 6, characterized in that: The quick-change mechanism further comprises: a connecting gear (2202) and a connecting gear ring (23); a plurality of the connecting gears (2202) are provided, and the plurality of connecting gears (2202) are respectively fixedly connected to the outsides of the plurality of connecting sleeves (22); the connecting gear ring (23) is rotatably connected to the inside of the quick-change ring (21), and the connecting gear ring (23) is meshed with the connecting gear (2202).

8. A gas separation device based on a solid oxide fuel cell as claimed in claim 7, characterized in that: The quick-change mechanism further comprises: a bevel gear ring (24), a connecting bevel gear (25) and an operating member (26); the bevel gear ring (24) is fixedly connected to the outside of the connecting gear ring (23); the connecting bevel gear (25) is rotatably connected to the inside of the quick-change ring (21), and the connecting bevel gear (25) is meshed with the bevel gear ring (24); and the operating member (26) is fixedly connected to the outside of the connecting bevel gear (25).

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