Hydrogen sealing structure for electrolytic bath

Abstract

A sealing cover comprises a cover body, a bottom frame is fixedly installed in the middle of the bottom face of the cover body, one end of the top face of the cover body is connected with an exhaust pipe in a penetrating mode, and the other end of the top face of the cover body is connected with an air inlet pipe in a penetrating mode. The bottom end of the exhaust pipe and the bottom end of the air inlet pipe extend to the position below the bottom frame, the outer wall of the bottom frame is slidably sleeved with a lifting sleeve, the periphery of the outer wall of the lifting sleeve is rotationally connected with connecting rods, the ends, away from the lifting sleeve, of the connecting rods are rotationally connected with supporting plates, and the tops of the supporting plates are slidably connected with the cover body. The supporting plate is fixedly connected with an extrusion shaft, a sealing ring is fixedly installed on the outer side of the extrusion shaft, hanging lugs are further fixedly connected to the two sides of the top face of the cover body, and the sealing ring can extend towards the outer side of the sealing cover by twisting a rotary knob above the sealing cover, so that the sealing ring can tightly abut against the inner wall of the hydrogen storage tank; therefore, the situation that leakage is easily caused when the sealing cover is connected into the hydrogen storage tank is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrolytic cells, in particular to a hydrogen sealing structure for an electrolytic cell. Background Art

[0002] Traditional electrolyzers mostly use several long bolts and pressure plates on both sides to press the middle plate together. There is a sealing ring between the plates. When this structure is placed horizontally, gravity will cause the middle part of the plate to be pressed downward, thereby affecting the sealing effect. In addition, the bolt length is fixed. When it is necessary to add electrode plates, the bolts need to be replaced. The latest electrolyzer structure currently uses a beam-type support and is hydraulically pressed to solve the problem of load-bearing deformation. It can also flexibly adjust the number of electrode plates in the electrolyzer, and flexibly increase or decrease the electrode plates according to the voltage and hydrogen production efficiency.

[0003] In addition, in the prior art, hydrogen produced by an electrolyzer usually needs to be transported to a hydrogen tank for collection. In the hydrogen tank, a hydrogen pipeline connected to the electrolyzer is usually set on a sealing cover, and the sealing cover is only installed inside the hydrogen tank by a threaded connection. If the sealing cover is deformed by impact, the sealing ring structure can no longer fit tightly in the connection gap, and hydrogen leakage is likely to occur, resulting in poor air tightness. Therefore, a hydrogen sealing structure for an electrolyzer is proposed to solve the above problems. Utility Model Content

[0004] The technical problems to be solved by the present invention are as follows: the sealing cover is deformed by impact, and the sealing ring structure can no longer fit tightly in the connection gap, which easily causes hydrogen leakage and poor air tightness.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A hydrogen sealing structure for an electrolyzer, comprising a square hydrogen production electrolyzer, characterized in that a hydrogen storage tank is provided on the side of the square hydrogen production electrolyzer, and a sealing cover is provided on the top of the hydrogen storage tank;

[0007] The sealing cover includes a cover body, a bottom frame is fixedly mounted in the middle of the bottom surface of the cover body, an exhaust pipe is connected through one end of the top surface of the cover body, and an air intake pipe is connected through the other end of the top surface of the cover body, and the bottom ends of the exhaust pipe and the air intake pipe both extend below the bottom frame;

[0008] The outer wall sliding sleeve of the bottom frame is provided with a lifting sleeve, and the outer wall of the lifting sleeve is rotatably connected to connecting rods on all sides, and the end of the connecting rod located away from the lifting sleeve is rotatably connected to a support plate;

[0009] The top of each support plate is slidably connected to the cover body, and the upper and lower ends of the support plate on the side away from the connecting rod are fixedly connected to the extrusion shaft, and a sealing ring is fixedly installed on the outer side of the extrusion shaft, and the side of the sealing ring is also fixedly installed on the support plate;

[0010] Wherein, both sides of the top surface of the cover body are fixedly connected with hanging ears.

[0011] As a further solution of the present invention: a screw rod is rotatably connected to the middle of the inner wall of the bottom frame, a sealing sleeve is provided on the upper end of the outer wall of the screw rod, and the top of the sealing sleeve is against the bottom surface of the cover body, the top end of the screw rod passes through the cover body upward, and the top end of the screw rod is also fixedly connected to a knob.

[0012] As a further solution of the present invention: the outer wall threaded sleeve of the screw rod is provided with a connecting sleeve, and extension plates are fixedly installed on both sides of the outer wall of the connecting sleeve. The extension plate is located at the end away from the connecting sleeve and is slidingly connected to the inner wall of the bottom frame, and the end of the extension plate is also fixedly installed on the inner wall of the lifting sleeve.

[0013] As a further solution of the present invention: a through hole is preset in the middle of the surface of the extension plate, and the two extension plates are located inside the through hole and are slidably connected along the intake pipe and the exhaust pipe respectively.

[0014] As a further solution of the present invention: the hydrogen storage tank includes a tank body, the top of the tank body and the cover body are movably installed, and the upper end of the inner wall of the tank body is in contact with the sealing ring.

[0015] As a further solution of the present invention: a fixed block is symmetrically fixedly installed on the upper end of the outer wall of the can body, an elastic member is fixedly installed on the lower end of the outer side of the fixed block, a traction rope is fixedly connected to the top of the elastic member, and the upper end of the front side of the fixed block is rotatably connected to a clamping wheel group, the traction rope passes through the clamping wheel group and is fixedly connected to a connecting ring, and the inner side of the connecting ring is movably connected to the hanging ear.

[0016] As a further solution of the present invention: an air valve is fixedly installed on the upper end of the outer wall of the exhaust pipe, the upper end of the intake pipe extends outward, and the intake pipe is fixedly installed on the square hydrogen production electrolyzer.

[0017] Beneficial effects of the utility model:

[0018] (1) The utility model installs a sealing ring on the outside of the sealing cover. By turning the knob on the top of the sealing cover, the sealing ring can be extended to the outside of the sealing cover, so that the sealing ring can be tightly pressed against the inner wall of the hydrogen storage tank, thereby improving the situation where the sealing cover is easily leaked when connected to the hydrogen storage tank;

[0019] (2) Lifting ears are provided on both sides of the sealing cover, and connecting rings are provided on both sides of the outer wall of the hydrogen storage tank. The connecting rings are fixed to the outer wall of the hydrogen storage tank by elastic parts. When the connecting rings are connected to the lifting ears, the sealing cover is lifted up, so that the sealing ring presses against the inner wall of the hydrogen storage tank in the vertical direction to seal, thereby achieving a single sealing ring to prevent hydrogen leakage from multiple directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the can body in the utility model;

[0023] Figure 3 This is a schematic cross-sectional view of the sealing cover of the present invention;

[0024] Figure 4 yes Figure 3 Schematic diagram of the overall structure with the middle sealing ring extending outward;

[0025] Figure 5 It is a schematic diagram of the overall structure of the middle support plate of the utility model.

[0026] In the figure: 1. Square hydrogen production electrolyzer; 2. Hydrogen storage tank; 201. Tank body; 202. Fixed block; 203. Clamping wheel assembly; 204. Elastic member; 205. Towing rope; 206. Connecting ring; 3. Sealing cover; 301. Cover body; 302. Bottom frame; 303. Exhaust pipe; 304. Screw rod; 305. Sealing sleeve; 306. Connecting sleeve; 307. Extension plate; 308. Lifting sleeve; 309. Connecting rod; 310. Support plate; 311. Extrusion shaft; 312. Sealing ring; 313. Hanging ear; 314. Inlet pipe; 315. Air valve. DETAILED DESCRIPTION

[0027] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] like Figure 1-5As shown, a hydrogen sealing structure for an electrolyzer comprises a square hydrogen production electrolyzer 1, a hydrogen storage tank 2 is provided on the side of the square hydrogen production electrolyzer 1, and a sealing cover 3 is provided on the top of the hydrogen storage tank 2; the sealing cover 3 comprises a cover body 301, a bottom frame 302 is fixedly installed in the middle of the bottom surface of the cover body 301, an exhaust pipe 303 is connected to one end of the top surface of the cover body 301, and an air intake pipe 314 is connected to the other end of the top surface of the cover body 301, and the bottom ends of the exhaust pipe 303 and the air intake pipe 314 both extend to the bottom of the bottom frame 302; wherein, the outer wall sliding sleeve of the bottom frame 302 is provided with a lifting and lowering mechanism. The lifting sleeve 308 is rotatably connected to the outer wall of the lifting sleeve 308 with a connecting rod 309. The connecting rod 309 is rotatably connected to the support plate 310 at the end away from the lifting sleeve 308. The top of each support plate 310 is slidably connected to the cover body 301. The upper and lower ends of the support plate 310 are fixedly connected to the extrusion shaft 311. The outer side of the extrusion shaft 311 is fixedly installed with a sealing ring 312, and the side of the sealing ring 312 is also fixedly installed with the support plate 310. The top surface of the cover body 301 is also fixedly connected with hanging ears 313 on both sides. Figure 2 The sealing ring 312 is made of silicone and has a certain degree of ductility;

[0029] The inner wall of the bottom frame 302 is rotatably connected to a screw rod 304. The upper end of the outer wall of the screw rod 304 is provided with a sealing sleeve 305, and the top of the sealing sleeve 305 is against the bottom surface of the cover body 301. The top of the screw rod 304 passes through the cover body 301 upward. The top of the screw rod 304 is also fixedly connected to a knob, such as Figure 3-Figure 4 As shown, the sealing sleeve 305 is also made of silicone material, and the sealing sleeve 305 seals the connection gap between the screw rod 304 and the cover body 301;

[0030] The outer wall thread sleeve of the screw rod 304 is provided with a connecting sleeve 306, and extension plates 307 are fixedly installed on both sides of the outer wall of the connecting sleeve 306. The extension plate 307 is located at the end away from the connecting sleeve 306 and is slidably connected to the inner wall of the bottom frame 302, and the end of the extension plate 307 is also fixedly installed with the inner wall of the lifting sleeve 308. Figure 3-Figure 4 As shown, the extension plate 307 can move along the length direction of the inner wall of the bottom frame 302;

[0031] A through hole is preset in the middle of the surface of the extension plate 307, and the two extension plates 307 are located inside the through hole and are slidably connected along the air inlet pipe 314 and the exhaust pipe 303 respectively. Figure 3-Figure 4 As shown, the through holes on the surface of the extension plate 307 do not contact the air inlet pipe 314 or the exhaust pipe 303, thereby avoiding scratching the pipe wall;

[0032] The hydrogen storage tank 2 includes a tank body 201, the top of the tank body 201 is movably installed with the cover body 301, the upper end of the inner wall of the tank body 201 is against the sealing ring 312, the upper end of the outer wall of the tank body 201 is symmetrically fixed with a fixed block 202, the lower end of the outer side of the fixed block 202 is fixedly installed with an elastic member 204, the top of the elastic member 204 is fixedly connected with a traction rope 205, the upper end of the front side of the fixed block 202 is rotatably connected with the clamping wheel group 203, the traction rope 205 passes through the clamping wheel group 203 and is fixedly connected with a connecting ring 206, the inner side of the connecting ring 206 is movably connected with the hanging ear 313, the upper end of the outer wall of the exhaust pipe 303 is fixedly installed with an air valve 315, the upper end of the air inlet pipe 314 extends outward, and the air inlet pipe 314 is fixedly installed with the square hydrogen production electrolyzer 1, as shown in FIG. Figure 1 As shown, when the connecting ring 206 is bound to the hanging ear 313, the elastic member 204 is in a stretched state.

[0033] The working principle of this utility model:

[0034] When connecting the hydrogen storage tank 2 and the sealing cover 3, the side of the cover body 301 with the bottom frame 302 is inserted into the tank body 201. Then, the knob is rotated to drive the screw rod 304 to rotate. The thread on the surface of the screw rod 304 pushes the connecting sleeve to move upward, and drives the lifting sleeve 308 to move upward through the extension plates 307 on both sides. The connecting rod 309 flips outward to open the device and pushes the support plate 310 to move outward from the cover body 301. During this period, the sealing ring 312 is stretched and the outer wall is against the inner wall of the tank body 201.

[0035] Then, the connecting ring 206 is tied to the hanging ear 313. At this time, the elastic member 204 is stretched, and the bottom end of the traction rope 205 is pulled downward. The top end of the traction rope 205 passes through the clamping wheel group 203 and pulls the hanging ear 313 upward. Then, the sealing ring 312 on the side of the cover body 301 presses upward against the inner wall of the tank body 201. Finally, the air inlet pipe 314 is connected to the square hydrogen production electrolyzer 1.

[0036] The above describes an embodiment of the present invention in detail. However, the above content is only a preferred embodiment of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent application of the present invention.

Claims

1. A hydrogen sealing structure for an electrolyzer, comprising a square hydrogen production electrolyzer (1), characterized in that: A hydrogen storage tank (2) is provided on the side of the square hydrogen production electrolyzer (1), and a sealing cover (3) is provided on the top of the hydrogen storage tank (2); The sealing cover (3) comprises a cover body (301), a bottom frame (302) is fixedly mounted in the middle of the bottom surface of the cover body (301), an exhaust pipe (303) is connected through one end of the top surface of the cover body (301), and an air intake pipe (314) is connected through the other end of the top surface of the cover body (301), and the bottom ends of the exhaust pipe (303) and the air intake pipe (314) both extend below the bottom frame (302); The outer wall sliding sleeve of the bottom frame (302) is provided with a lifting sleeve (308), and the outer wall of the lifting sleeve (308) is rotatably connected to connecting rods (309) on all sides, and the connecting rod (309) is rotatably connected to a support plate (310) at one end away from the lifting sleeve (308); The top of each support plate (310) is slidably connected to the cover body (301), and the upper and lower ends of the support plate (310) on a side away from the connecting rod (309) are fixedly connected to an extrusion shaft (311), and a sealing ring (312) is fixedly installed on the outer side of the extrusion shaft (311), and the side surface of the sealing ring (312) is also fixedly installed to the support plate (310); Wherein, both sides of the top surface of the cover body (301) are fixedly connected with hanging ears (313).

2. A hydrogen sealing structure for an electrolytic cell according to claim 1, characterized in that: A screw rod (304) is rotatably connected to the middle of the inner wall of the bottom frame (302), a sealing sleeve (305) is sleeved on the upper end of the outer wall of the screw rod (304), and the top of the sealing sleeve (305) is against the bottom surface of the cover body (301), the top end of the screw rod (304) passes through the cover body (301) upward, and the top end of the screw rod (304) is also fixedly connected to a knob.

3. A hydrogen sealing structure for an electrolytic cell according to claim 2, characterized in that: The outer wall thread sleeve of the screw rod (304) is provided with a connecting sleeve (306), and extension plates (307) are fixedly installed on both sides of the outer wall of the connecting sleeve (306). The extension plate (307) is located at one end away from the connecting sleeve (306) and is slidably connected to the inner wall of the bottom frame (302), and the end of the extension plate (307) is also fixedly installed with the inner wall of the lifting sleeve (308).

4. A hydrogen sealing structure for an electrolytic cell according to claim 3, characterized in that: A through hole is preset in the middle of the surface of the extension plate (307), and the two extension plates (307) are located inside the through hole and are slidably connected along the air inlet pipe (314) and the exhaust pipe (303) respectively.

5. The hydrogen sealing structure for an electrolytic cell according to claim 1, characterized in that: The hydrogen storage tank (2) comprises a tank body (201), the top of the tank body (201) is movably mounted on a cover body (301), and the upper end of the inner wall of the tank body (201) abuts against a sealing ring (312).

6. A hydrogen sealing structure for an electrolytic cell according to claim 5, characterized in that: A fixing block (202) is symmetrically fixedly mounted on the upper end of the outer wall of the tank body (201); an elastic member (204) is fixedly mounted on the lower end of the outer side of the fixing block (202); a traction rope (205) is fixedly connected to the top of the elastic member (204); a clamping wheel group (203) is rotatably connected to the upper end of the front face of the fixing block (202); the traction rope (205) passes through the clamping wheel group (203) and is fixedly connected to a connecting ring (206); the inner side of the connecting ring (206) is movably connected to the hanging ear (313).

7. A hydrogen sealing structure for an electrolytic cell according to claim 6, characterized in that: An air valve (315) is fixedly mounted on the upper end of the outer wall of the exhaust pipe (303), the upper end of the air intake pipe (314) extends outward, and the air intake pipe (314) is fixedly mounted on the square hydrogen production electrolyzer (1).

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