Sealing structure based on hydrogen sulfide leakage prevention and production equipment

Abstract

The utility model discloses a sealing structure based on hydrogen sulfide leakage prevention and production equipment. The sealing structure based on hydrogen sulfide leakage prevention comprises an equipment frame body, an opening and closing door, a sealing piece and a movable handle, one side of the opening and closing door is rotatably connected with one side of the equipment frame body; the sealing piece is arranged on the equipment frame body; an inclined groove is formed in the other side of the equipment frame body; a clamping block is arranged on the movable handle; the movable handle is arranged on the opening and closing door and can drive the clamping block to move; when the opening and closing door seals the equipment frame body, the opening and closing door is connected to the sealing piece in a pressed mode, and the movable handle can drive the clamping block to enter the inclined groove so as to extrude the clamping block and the opening and closing door through the inclined groove to move in the direction close to the sealing piece. According to the scheme, the sealing piece is additionally arranged between the equipment frame body and the opening and closing door, so that the sealing effect can be achieved by pressing the sealing piece when the opening and closing door is closed. And meanwhile, the clamping block can be locked into the inclined groove by moving the handle, so that the opening and closing door further presses the equipment frame, and the sealing effect of the equipment is improved.

Description

Sealing structure and production equipment based on hydrogen sulfide leakage prevention Technical Field

[0001] This application relates to the field of lithium-sulfur battery technology, and in particular to a sealing structure and production equipment based on hydrogen sulfide leakage prevention. Background Technology

[0002] As batteries develop towards higher energy density, batteries with added sulfides have increasingly broad application prospects due to their even higher energy density.

[0003] During the production process, the inventors discovered that batteries that are not fully encapsulated inevitably come into contact with moisture in the air. Sulfur reacts with water to produce toxic and flammable hydrogen sulfide gas, which poses a high risk of leakage through the production equipment, leading to a high risk of safety accidents. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide a sealing structure and production equipment based on hydrogen sulfide leakage prevention, so as to solve the problem of high risk of hydrogen sulfide gas leakage in existing production equipment.

[0005] To achieve the above-mentioned technical objectives, the first aspect of this application provides a sealing structure based on hydrogen sulfide leakage prevention, including: an equipment frame, a switch door, a seal, and a movable handle;

[0006] One side of the switch door is rotatably connected to one side of the equipment frame;

[0007] The sealing element is disposed on the device frame;

[0008] A sloping groove is provided on the other side of the equipment frame;

[0009] The movable handle is equipped with a locking block;

[0010] The movable handle is disposed on the door, and the movable handle can drive the locking block to move;

[0011] When the switch door seals the equipment frame, the switch door presses against the sealing element, and the moving handle can drive the locking block into the inclined groove so that the locking block and the switch door are squeezed by the inclined groove and moved closer to the sealing element.

[0012] Furthermore, it also includes the main body of the first equipment and the exhaust mechanism;

[0013] The device frame is disposed on the first device body;

[0014] The exhaust mechanism is located on the main body of the first device and is used to extract gas from the main body of the first device.

[0015] Furthermore, it also includes a second main body of equipment;

[0016] The second equipment body is welded to the bottom of the first equipment body;

[0017] The second device has a gas settling tank inside its main body;

[0018] The second device body is provided with an air inlet;

[0019] The air inlet is connected to the gas settling tank and the main body of the first device;

[0020] The exhaust mechanism extends into the gas settling tank.

[0021] Furthermore, the outer periphery of the second device body is covered with a sealing baffle.

[0022] Furthermore, it also includes: a differential pressure detector;

[0023] The differential pressure detector is installed on the main body of the first device and is used to detect the differential pressure value inside and outside the main body of the first device;

[0024] The exhaust mechanism is electrically connected to the differential pressure detector and is used to control the start / stop and power according to the differential pressure value so that the body of the first device is kept under negative pressure.

[0025] Furthermore, it also includes a gas concentration detector;

[0026] The gas concentration detector is installed on the main body of the first device and is used to detect the hydrogen sulfide concentration value inside the main body of the first device.

[0027] Furthermore, the exhaust mechanism includes: a main fan, a main pipeline, and a switching valve;

[0028] The main fan is connected to one end of the main pipeline;

[0029] The other end of the main pipeline extends into the body of the first device;

[0030] The switching valve is located between the main pipeline and the main fan, and is used to control the connection and disconnection between the main pipeline and the main fan.

[0031] Furthermore, the exhaust mechanism includes: a second fan and a second switching valve;

[0032] The second fan is connected to one end of the main pipeline;

[0033] The second switching valve is located between the main pipeline and the second fan, and is used to control the on / off connection between the main pipeline and the second fan.

[0034] Furthermore, it also includes the safety lock body and the safety lock cylinder;

[0035] The safety lock body is disposed in the device frame;

[0036] The safety lock cylinder is located on the switch door;

[0037] When the switch door seals the equipment frame, the safety lock cylinder is inserted into the safety lock body.

[0038] A second aspect of this application provides a production apparatus including the hydrogen sulfide-based leak-proof sealing structure described in any of the preceding claims.

[0039] As can be seen from the above technical solutions, this application provides a sealing structure and production equipment based on hydrogen sulfide leakage prevention; wherein, the sealing structure based on hydrogen sulfide leakage prevention includes: an equipment frame, a switch door, a sealing element, and a movable handle; one side of the switch door is rotatably connected to one side of the equipment frame; the sealing element is disposed on the equipment frame; an inclined groove is disposed on the other side of the equipment frame; a locking block is disposed on the movable handle; the movable handle is disposed on the switch door, and the movable handle can drive the locking block to move; when the switch door seals the equipment frame, the switch door presses against the sealing element, and the movable handle can drive the locking block into the inclined groove so that the locking block and the switch door are squeezed by the inclined groove and moved closer to the sealing element.

[0040] This solution adds a seal between the equipment frame and the door, allowing for a tight seal when the door is closed. Simultaneously, moving the handle engages a locking block in the groove, further pressing the door against the equipment frame and enhancing the sealing effect. This effectively addresses the high risk of hydrogen sulfide gas leakage in existing lithium-sulfur battery production equipment. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 is a top view of a sealing structure based on hydrogen sulfide leakage prevention provided in an embodiment of this application;

[0043] Figure 2 is a cross-sectional view of the equipment frame and the door opening / closing mechanism in region A of Figure 1 provided in an embodiment of this application;

[0044] Figure 3 is a perspective view of the main body of the first device based on a hydrogen sulfide leak-proof sealing structure provided in an embodiment of this application;

[0045] Figure 4 is an enlarged view of region B in Figure 3 provided in an embodiment of this application;

[0046] Figure 5 is a perspective view of a hydrogen sulfide leak-proof sealing structure provided in an embodiment of this application, with the main body of the first device not shown;

[0047] Figure 6 is a side view of a hydrogen sulfide leak-proof sealing structure provided in an embodiment of this application, with the first device body not shown;

[0048] Figure 7 is a schematic diagram of a sealing baffle based on a hydrogen sulfide leak-proof sealing structure provided in an embodiment of this application;

[0049] Figure 8 is a perspective view of an exhaust mechanism based on a hydrogen sulfide leak-proof sealing structure provided in an embodiment of this application;

[0050] Figure 9 is a schematic diagram of a safety lock body and safety lock cylinder based on a hydrogen sulfide leak-proof sealing structure provided in an embodiment of this application;

[0051] In the picture:

[0052] 10. Equipment frame; 11. Clamping block; 12. Inclined groove;

[0053] 20. Opening and closing doors;

[0054] 30. Sealing components;

[0055] 40. Moving handle; 41. Block;

[0056] 50. Mechanism; 51. Differential pressure detector; 52. Main fan; 53. Main pipeline; 54. Switch valve; 55. Second fan; 56. Second switch valve; 57. Branch pipeline;

[0057] 60. Safety lock body;

[0058] 100. Main body of the first piece of equipment;

[0059] 200. Second equipment body; 210. Gas settling tank; 220. Air inlet; 230. Sealing baffle; 231. Second sealing ring. Detailed Implementation

[0060] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments in this application specification, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection claimed in this application.

[0061] In the description of the embodiments of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0062] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a replaceable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0063] The first aspect provided in this application embodiment offers a hydrogen sulfide-based leak-proof sealing structure (hereinafter referred to as the sealing structure). This sealing structure can be applied in lithium-sulfur battery production equipment to enhance the sealing performance of the production equipment and reduce the risk of hydrogen sulfide gas leaking from the production equipment.

[0064] Specifically, the production equipment using the sealing structure of this embodiment can be as shown in Figure 1. Multiple equipment frames are provided in the production equipment. The equipment frames can serve as structures for installing opening and closing doors. Taking the sealing structure in area A of the production equipment in Figure 1 as an example, and referring to Figures 2 to 4, the sealing structure provided in this embodiment includes: an equipment frame 10, an opening and closing door 20, a sealing element 30, and a moving handle 40; one side of the opening and closing door 20 is rotatably connected to one side of the equipment frame 10; the sealing element 30 is disposed on the equipment frame 10; a sloping groove 12 is provided on the other side of the equipment frame 10; a locking block 41 is provided on the moving handle 40; the moving handle 40 is disposed on the opening and closing door 20, and the moving handle 40 can drive the locking block 41 to move; when the opening and closing door 20 seals the equipment frame 10, the opening and closing door 20 presses against the sealing element 30, and the moving handle 40 can drive the locking block 41 into the sloping groove 12 to squeeze the locking block 41 and the opening and closing door 20 towards the sealing element 30 through the sloping groove 12.

[0065] In this embodiment, the switch door 20 and the equipment frame 10 form a rotary switch door structure.

[0066] In this embodiment, the movable handle 40 can drive the locking block 41 to move on the door 20 by rotating. Specifically, the movable handle 40 is rotatably mounted on the door 20, and when it rotates, it can drive the locking block 41, causing the locking block 41 to engage with or disengage from the inclined groove 12.

[0067] In this embodiment, a clamping block 11 is provided on the device frame 10; an inclined groove 12 is provided inside the clamping block 11. The inclined groove 12 has an inclined surface that slopes towards the seal 30; after the clamping block 41 is engaged, the inclined surface can push the clamping block 41 to move towards the seal 30, thereby causing the clamping block 41 to drive the opening and closing door 20 to further compress the seal 30, thereby improving the sealing performance of the sealing structure when closed, and further reducing the leakage of hydrogen sulfide gas.

[0068] It should be noted that, in this embodiment, the equipment frame 10 can be sealed to the production equipment by welding or by integral molding during manufacturing.

[0069] In one embodiment, referring to Figures 1 to 4, the sealing structure further includes a first device body 100 and an exhaust mechanism 50; the device frame 10 is disposed on the first device body 100; the exhaust mechanism 50 is disposed on the first device body 100 and is used to extract gas from the first device body 100.

[0070] Specifically, the inner end of the exhaust mechanism 50 extends into the first equipment body 100, and the outer end is connected to the gas recovery and treatment system. The gas recovery and treatment system can employ existing equipment. The exhaust mechanism 50 can extract hydrogen sulfide gas and other harmful gases from the first equipment body 100.

[0071] In a more specific embodiment, please refer to Figures 1 to 6. The sealing structure also includes a second device body 200; the second device body 200 is welded to the bottom of the first device body 100; a gas sink 210 is provided inside the second device body 200; an air inlet 220 is provided on the second device body 200; the air inlet 220 connects the gas sink 210 and the first device body 100; and an exhaust mechanism 50 extends into the gas sink 210.

[0072] In other ways, the second equipment body 200 can also be integrally molded and sealed to the first equipment body 100, specifically so that the production equipment can be layered to form a space surrounded by the first equipment body 100 and a space surrounded by the second equipment body 200.

[0073] In this embodiment, since the gas settling tank 210 is connected to the interior of the first device body 100, the exhaust mechanism 50, which extends into both the first device body 100 and the gas settling tank 210, can draw gas from both the gas settling tank 210 and the first device body 100.

[0074] In actual production, because hydrogen sulfide has a larger molecular mass than other gases in the production equipment, it will sink into the gas settling tank 210. During the exhaust process of the exhaust mechanism 50, the gas in the first equipment body 100 will tend to flow towards the gas settling tank 210, and will gradually enter the gas settling tank 210 with the suction of the exhaust mechanism 50. This achieves efficient exhaust while further reducing the risk of leakage from other opening and closing doors 20 on the first equipment body 100.

[0075] It should be noted that a partition plate can be provided between the first equipment body 100 and the second equipment body 200. The partition plate separates the first equipment body 100 and the second equipment body 200 into two different production areas. The aforementioned air inlet 220 is provided on the partition plate. Multiple air inlets 220 can be provided on the partition plate, and the multiple air inlets 220 are evenly spaced.

[0076] In one embodiment, the second device body 200 is provided with a dust removal port facing the gas settling tank 210. The dust removal port can adsorb dust in the gas settling tank 210 into the dust removal port.

[0077] In one embodiment, a sealing baffle 230 covers the outer periphery of the second device body 200. The sealing baffle 230 is fixed to the second device body 200 by means of threaded locking. When it is necessary to clean the dust in the dust removal port, the sealing baffle 230 can be opened by turning the screw.

[0078] As shown in Figure 7, a second sealing ring 231 is provided inside the sealing baffle 230. The sealing baffle 230 can improve the sealing performance of the second equipment body 200.

[0079] In one embodiment, the sealing element 30 can be a silicone structure. The second sealing ring 231 can be a silicone structure or a sealing gel.

[0080] In one embodiment, the device further includes: a differential pressure detector 51; the differential pressure detector 51 is disposed on the first device body 100 and is used to detect the differential pressure value inside and outside the first device body 100; the exhaust mechanism 50 is electrically connected to the differential pressure detector 51 and is used to control the start / stop and power according to the differential pressure value so that the first device body 100 is kept under negative pressure.

[0081] Specifically, both the differential pressure detector 51 and the exhaust mechanism 50 are connected to the central control processor. The exhaust mechanism 50 can create a negative pressure inside the first equipment body 100 through its own start / stop and power control, thereby further reducing the amount of gas leaking from the first equipment body 100.

[0082] In one embodiment, a gas concentration detector is also included; the gas concentration detector is disposed in the first device body 100 and is used to detect the hydrogen sulfide concentration value within the first device body 100.

[0083] Generally, the rate at which hydrogen sulfide gas is generated in the production equipment is stable within a certain range. With the intake of the exhaust mechanism 50, the concentration of hydrogen sulfide in the main body 100 of the first equipment remains below the preset value.

[0084] When the hydrogen sulfide concentration exceeds the preset value, it indicates a production problem or a malfunction in the exhaust system. A gas concentration detector can promptly detect these faults and alert staff.

[0085] In one embodiment, referring to Figures 1 to 8, the exhaust mechanism 50 includes: a main fan 52, a main pipeline 53, and a switching valve 54; the main fan 52 is connected to one end of the main pipeline 53; the other end of the main pipeline 53 extends into the first equipment body 100; the switching valve 54 is disposed between the main pipeline 53 and the main fan 52, and is used to control the on / off connection between the main pipeline 53 and the main fan 52.

[0086] In the event of a failure of the main blower 52, the switching valve 54 can disconnect the main pipeline 53 from the main blower 52 to prevent backflow of hydrogen sulfide gas in the gas recovery and treatment system.

[0087] Furthermore, the exhaust mechanism 50 includes: a second fan 55 and a second switching valve 56; the second fan 55 is connected to one end of the main pipeline 53; the second switching valve 56 is disposed between the main pipeline 53 and the second fan 55, and is used to control the on / off connection between the main pipeline 53 and the second fan 55.

[0088] In the event of a failure of the main fan 52, the second fan 55 can be activated as a backup unit.

[0089] In one embodiment, the main pipeline 53 is connected to a plurality of branch pipelines 57 and is connected to each air inlet 220 via the branch pipelines 57.

[0090] As one implementation, the air intake mechanism 50 can employ an FFU (fan filter unit) which provides unidirectional clean air flow and prevents hydrogen sulfide from leaking through the dense filter layer inside the FFU when the machine is stopped.

[0091] In one implementation, the exhaust port of the air intake mechanism 50 extends out from the top of the first equipment body 100. Since hydrogen sulfide sinks, most of the hydrogen sulfide gas cannot leak from the exhaust port of the air intake mechanism 50 when the air intake mechanism 50 is stopped.

[0092] Furthermore, referring to Figures 3 and 9, the sealing structure also includes a safety lock body 60 and a safety lock cylinder 61; the safety lock body 60 is disposed on the equipment frame 10; the safety lock cylinder 61 is disposed on the switch door 20; when the switch door 20 seals the equipment frame 10, the safety lock cylinder 61 is inserted into the safety lock body 60.

[0093] When the safety lock cylinder 61 is inserted into the safety lock body 60, both are energized. When the safety lock cylinder 61 is separated from the safety lock body 60, both are de-energized. The separation of the safety lock cylinder 61 and the safety lock body 60 can be controlled magnetically. It should be noted that both the safety lock cylinder 61 and the safety lock body 60 can employ existing safety lock structures.

[0094] A second aspect of this application provides a production apparatus including the hydrogen sulfide-based leak-proof sealing structure of any of the above.

[0095] In this embodiment, the production equipment with the above-mentioned sealing structure can be applied to the production processes of battery active material preparation, electrode coating, cell assembly, etc., to reduce the leakage of hydrogen sulfide gas during the above production processes.

[0096] The above are merely preferred embodiments of this application and are not intended to limit the present invention. Although the present application has been described in detail with reference to examples, those skilled in the art can still modify the technical solutions described in the foregoing examples or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A sealing structure based on hydrogen sulfide leakage prevention, characterized in that, include: The device includes a frame (10), a switch door (20), a seal (30), and a movable handle (40). One side of the switch door (20) is rotatably connected to one side of the device frame (10). The seal (30) is disposed on the device frame (10). A groove (12) is provided on the other side of the device frame (10). A locking block (41) is provided on the movable handle (40). The movable handle (40) is disposed on the switch door (20), and the movable handle (40) can drive the locking block (41) to move. When the switch door (20) seals the device frame (10), the switch door (20) presses against the seal (30), and the movable handle (40) can drive the locking block (41) into the groove (12) to squeeze the locking block (41) and the switch door (20) towards the seal (30) through the groove (12).

2. The sealing structure based on hydrogen sulfide leakage prevention according to claim 1, characterized in that, It also includes a first equipment body (100) and an exhaust mechanism (50); the equipment frame (10) is disposed on the first equipment body (100); the exhaust mechanism (50) is disposed on the first equipment body (100) and is used to extract the gas inside the first equipment body (100).

3. The sealing structure based on hydrogen sulfide leakage prevention according to claim 2, characterized in that, It also includes a second equipment body (200); the second equipment body (200) is welded to the bottom of the first equipment body (100); a gas sink (210) is provided inside the second equipment body (200); an air inlet (220) is provided on the second equipment body (200); the air inlet (220) connects the gas sink (210) and the first equipment body (100); the exhaust mechanism (50) extends into the gas sink (210).

4. The sealing structure based on hydrogen sulfide leakage prevention according to claim 3, characterized in that, The outer periphery of the second device body (200) is covered with a sealing baffle (230).

5. The sealing structure based on hydrogen sulfide leakage prevention according to claim 2, characterized in that, Also includes: Differential pressure detector (51); The differential pressure detector (51) is disposed on the first equipment body (100) and is used to detect the differential pressure value inside and outside the first equipment body (100); The exhaust mechanism (50) is electrically connected to the differential pressure detector (51) and is used to control the start and stop and power according to the differential pressure value so that the first equipment body (100) maintains negative pressure.

6. The sealing structure based on hydrogen sulfide leakage prevention according to claim 2, characterized in that, It also includes a gas concentration detector; the gas concentration detector is disposed in the first device body (100) and is used to detect the hydrogen sulfide concentration value in the first device body (100).

7. The sealing structure based on hydrogen sulfide leakage prevention according to any one of claims 2 to 6, characterized in that, The exhaust mechanism (50) includes: a main fan (52), a main pipeline (53), and a switch valve (54); the main fan (52) is connected to one end of the main pipeline (53); the other end of the main pipeline (53) extends into the first equipment body (100); the switch valve (54) is located between the main pipeline (53) and the main fan (52) and is used to control the connection and disconnection between the main pipeline (53) and the main fan (52).

8. The sealing structure based on hydrogen sulfide leakage prevention according to claim 7, characterized in that, The exhaust mechanism (50) includes: a second fan (55) and a second switch valve (56); the second fan (55) is connected to one end of the main pipeline (53); the second switch valve (56) is disposed between the main pipeline (53) and the second fan (55) for controlling the on / off connection between the main pipeline (53) and the second fan (55).

9. The sealing structure based on hydrogen sulfide leakage prevention according to claim 1, characterized in that, It also includes a safety lock body (60) and a safety lock cylinder (61); the safety lock body (60) is disposed in the equipment frame (10); the safety lock cylinder (61) is disposed in the switch door (20); when the switch door (20) seals the equipment frame (10), the safety lock cylinder (61) is inserted into the safety lock body (60).

10. A production equipment, characterized in that, Including the hydrogen sulfide-based leak-proof sealing structure as described in any one of claims 1-9.

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