Electric hydrogen compression and filling integrated skid

Abstract

The present invention discloses an electric hydrogen compression and filling integrated skid, which includes a kettle body. The inner wall of the kettle body is slidably connected with a first piston and a second piston. The top end of the second piston is fixedly connected with a first piston rod. A piston tube is sleeved outside the first piston rod, and the bottom end of the piston tube is fixedly connected with the first piston. It relates to the technical field of hydrogen compression and filling. By arranging the first piston and the second piston in the kettle body, when the first piston and the second piston move synchronously, the compression and filling of hydrogen can be continuously completed, so that the compression and filling are completed synchronously, improving the efficiency of hydrogen filling. And when the first piston and the second piston reciprocate synchronously, both can compress and clamp hydrogen, thus improving the filling efficiency. By arranging a filling cylinder below the kettle body, the kettle body performs hydrogen compression operation, while the filling cylinder performs filling operation, making the compression and filling operations coherent and improving the compression and filling efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen compression and filling, and specifically to an electric hydrogen compression and filling integrated skid. Background Art

[0002] The compression of hydrogen refers to high-pressure compression to become liquid hydrogen, and filling refers to filling hydrogen into a tanker or container; currently, the compression and filling of hydrogen are two independent steps, which requires two independent devices to operate separately. Therefore, the compression and filling steps are cumbersome, and the structure of the entire device is very complex. Summary of the Invention

[0003] In view of the problems existing in the existing electric hydrogen compression and filling integrated skid, the present invention is proposed.

[0004] Therefore, the object of the present invention is to provide an electric hydrogen compression and filling integrated skid, which solves the problems that the compression of hydrogen refers to high-pressure compression to become liquid hydrogen, and filling refers to filling hydrogen into a tanker or container; currently, the compression and filling of hydrogen are two independent steps, which requires two independent devices to operate separately. Therefore, the compression and filling steps are cumbersome, and the structure of the entire device is very complex.

[0005] To solve the above technical problems, according to one aspect of the present invention, the following technical solutions are provided:

[0006] An electric hydrogen compression and filling integrated skid, including a kettle body, the inner wall of the kettle body is slidably connected with a first piston and a second piston, the top end of the second piston is fixedly connected with a first piston rod, the outside of the first piston rod is sleeved with a piston tube, and the bottom end of the piston tube is fixedly connected with the first piston;

[0007] The upper and lower ends on the right side of the kettle body are respectively provided with a first air inlet and a second air inlet, the upper and lower ends on the left side of the kettle body are respectively provided with a first liquid outlet and a second liquid outlet, the first air inlet and the second air inlet are jointly connected to a hydrogen tank, the first liquid outlet and the second liquid outlet are jointly connected to a filling pipeline, and valves are installed on the first liquid outlet, the second liquid outlet, the first air inlet and the second air inlet.

[0008] As a preferred solution of the electric hydrogen compression and filling integrated skid of the present invention, wherein: a first valve is fixedly installed on the first liquid outlet, a second valve is fixedly installed on the second liquid outlet, a third valve is fixedly installed on the second air inlet, and a fourth valve is fixedly installed on the first air inlet.

[0009] As a preferred embodiment of the electric hydrogen compression and filling integrated skid of the present invention, wherein: the end of the first liquid outlet is fixedly connected to a first conduit, the end of the second liquid outlet is fixedly connected to a second conduit, and the other end of the first conduit is communicated with the second conduit.

[0010] As a preferred embodiment of the electric hydrogen compression and filling integrated skid of the present invention, wherein: a first three-way pipe is commonly connected between the first air inlet and the second air inlet, and one of the interfaces of the first three-way pipe is connected to the air outlet of the hydrogen tank.

[0011] As a preferred embodiment of the electric hydrogen compression and filling integrated skid of the present invention, wherein: the top end of the first piston rod is fixedly connected to a first traction plate, and a first electric telescopic rod is detachably installed between the first traction plate and the top end of the kettle body.

[0012] As a preferred embodiment of the electric hydrogen compression and filling integrated skid of the present invention, wherein: the bottom end of the first traction plate is welded with a first support connection seat, the first electric telescopic rod is inserted into the inner wall of the first support connection seat, and the first electric telescopic rod and the first support connection seat are fixed by bolts;

[0013] The bottom end of the first electric telescopic rod is inserted into a second support connection seat, the second support connection seat and the first electric telescopic rod are fixed by bolts, and the second support connection seat is welded to the top end of the kettle body.

[0014] As a preferred embodiment of the electric hydrogen compression and filling integrated skid of the present invention, wherein: the top end of the piston tube is fixedly installed with a second traction plate, and a second electric telescopic rod is detachably installed between the second traction plate and the top end of the kettle body.

[0015] As a preferred embodiment of the electric hydrogen compression and filling integrated skid of the present invention, wherein: the bottom end of the second traction plate is welded with a third support connection seat, the second electric telescopic rod is inserted into the inner wall of the third support connection seat, and the second electric telescopic rod and the third support connection seat are fixed by bolts;

[0016] The bottom end of the second electric telescopic rod is inserted into a fourth support connection seat, the fourth support connection seat and the second electric telescopic rod are fixed by bolts, and the fourth support connection seat is welded to the top end of the kettle body.

[0017] As a preferred embodiment of the electric hydrogen compression and filling integrated skid of the present invention, it further includes a liquid hydrogen storage tank connected to the second conduit. The liquid outlet of the liquid hydrogen storage tank is connected to the second conduit through a conduit. The other end of the second conduit is fixedly connected to a three-way pipe II. One of the interfaces of the three-way pipe II is fixedly connected to the top of the filling cylinder. The two ends of the filling cylinder are respectively provided with a first liquid inlet and a second liquid inlet. The two ends of the bottom of the filling cylinder are respectively provided with a first liquid outlet and a second liquid outlet. Valves are installed on the first liquid inlet, the second liquid inlet, the first liquid outlet, and the second liquid outlet. A three-way pipe III is commonly connected between the first liquid outlet and the second liquid outlet. A third piston is slidably connected to the inner wall of the filling cylinder, and one end of the third piston is fixedly connected to a second piston rod.

[0018] As a preferred embodiment of the electric hydrogen compression and filling integrated skid of the present invention, the right end of the second piston rod is fixedly connected to a third traction disc. A fifth support connection seat is fixedly installed at the left end of the third traction disc. A third electric telescopic rod is inserted into the inner wall of the fifth support connection seat. The fifth support connection seat and the third electric telescopic rod are fixed by bolts. The opposite end of the third electric telescopic rod is inserted into a sixth support connection seat. The third electric telescopic rod and the sixth support connection seat are fixed by bolts.

[0019] Compared with the prior art:

[0020] 1. By arranging a first piston and a second piston in the kettle body, when the first piston and the second piston move synchronously, the compression and filling of hydrogen can be continuously completed, so that the compression and filling are completed synchronously, improving the efficiency of hydrogen filling; and when the first piston and the second piston reciprocate synchronously, both can compress and clamp hydrogen, thus improving the filling efficiency;

[0021] 2. By arranging a filling cylinder below the kettle body, the kettle body performs hydrogen compression operation, while the filling cylinder performs filling operation, making the compression and filling operations coherent and improving the compression and filling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram provided by Embodiment 1 of the present invention;

[0023] Figure 2 Provided by Embodiment 1 of the present invention Figure 1 Cross-sectional view;

[0024] Figure 3 It is a schematic diagram of the fixture provided by Embodiment 1 of the present invention;

[0025] Figure 4 It is a schematic diagram of the second support connection seat provided by Embodiment 1 of the present invention;

[0026] Figure 5Schematic diagram provided for Embodiment 2 of the present invention;

[0027] Figure 6 Provided for Embodiment 2 of the present invention Figure 5 Partial enlarged view of.

[0028] In the figure: kettle body 1, first liquid outlet 2, second liquid outlet 3, second air inlet 4, first air inlet 5, first valve 6, fourth valve 7, third valve 8, second valve 9, second support connection seat 10, fourth support connection seat 11, first sleeve 12, piston tube 13, second electric telescopic rod 14, second traction plate 15, first piston rod 16, first electric telescopic rod 17, first support connection seat 18, first traction plate 19, first three-way pipe 20, first conduit 21, second conduit 22, first piston 23, second piston 24, liquid hydrogen storage tank 25, fixer 26, arc block 261, second conduit 27, second three-way pipe 28, filling cylinder 29, third three-way pipe 30, third electric telescopic rod 31, third traction plate 32, second piston rod 33, sixth support connection seat 34, fifth support connection seat 35, second liquid inlet 36, first liquid inlet 38, first liquid outlet 39, second liquid outlet 40, second sleeve 41, hydrogen tank 42, third support connection seat 43. Detailed implementation manners

[0029] To make the objectives, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0030] Embodiment 1:

[0031] The present invention provides an electric hydrogen compression and filling integrated skid. Please refer to Figures 1-4 , which includes a kettle body 1. The inner wall of the kettle body 1 is slidably connected with a first piston 23 and a second piston 24. The top end of the second piston 24 is fixedly connected with a first piston rod 16. The outer side of the first piston rod 16 is sleeved with a piston tube 13. The bottom end of the piston tube 13 is fixedly connected with the first piston 23. The top end of the kettle body 1 is fixedly installed with a first sleeve 12. A rubber ring is fixedly installed in the first sleeve 12. The rubber ring is sleeved on the piston tube 13 and is tightly pressed against the piston tube 13; A rubber tube is arranged in the piston tube 13. The rubber tube is sleeved on the first piston rod 16 and is tightly pressed against the first piston rod 16;

[0032] The upper and lower ends on the right side of the kettle body 1 are respectively provided with a first air inlet 5 and a second air inlet 4. The upper and lower ends on the left side of the kettle body 1 are respectively provided with a first liquid outlet 2 and a second liquid outlet 3. The first air inlet 5 and the second air inlet 4 are jointly connected to a hydrogen tank 42. High-pressure hydrogen is provided in the hydrogen tank 42. The first liquid outlet 2 and the second liquid outlet 3 are jointly connected to a filling pipeline. Valves are installed on the first liquid outlet 2, the second liquid outlet 3, the first air inlet 5 and the second air inlet 4.

[0033] A first valve 6 is fixedly installed on the first liquid outlet 2, a second valve 9 is fixedly installed on the second liquid outlet 3, a third valve 8 is fixedly installed on the second air inlet 4, and a fourth valve 7 is fixedly installed on the first air inlet 5.

[0034] The end of the first liquid outlet 2 is fixedly connected to a first conduit 21, the end of the second liquid outlet 3 is fixedly connected to a second conduit 22, and the other end of the first conduit 21 communicates with the second conduit 22.

[0035] A tee pipe one 20 is commonly connected between the first air inlet 5 and the second air inlet 4, and one of the interfaces of the tee pipe one 20 is connected to the air outlet of the hydrogen tank 42.

[0036] The top end of the first piston rod 16 is fixedly connected to a first traction plate 19. A first electric telescopic rod 17 is detachably installed between the first traction plate 19 and the top end of the kettle body 1. Specifically, a first support connection seat 18 is welded to the bottom end of the first traction plate 19. The first electric telescopic rod 17 is inserted into the inner wall of the first support connection seat 18, and the first electric telescopic rod 17 and the first support connection seat 18 are fixed by bolts; the bottom end of the first electric telescopic rod 17 is inserted into a second support connection seat 10, and the second support connection seat 10 and the first electric telescopic rod 17 are fixed by bolts, and the second support connection seat 10 is welded to the top end of the kettle body 1.

[0037] The top end of the piston tube 13 is fixedly installed with a second traction plate 15. A second electric telescopic rod 14 is detachably installed between the second traction plate 15 and the top end of the kettle body 1. Specifically, a third support connection seat 43 is welded to the bottom end of the second traction plate 15. The second electric telescopic rod 14 is inserted into the inner wall of the third support connection seat 43, and the second electric telescopic rod 14 and the third support connection seat 43 are fixed by bolts; the bottom end of the second electric telescopic rod 14 is inserted into a fourth support connection seat 11, and the fourth support connection seat 11 and the second electric telescopic rod 14 are fixed by bolts, and the fourth support connection seat 11 is welded to the top end of the kettle body 1.

[0038] In specific use, at this time, the kettle body 1 is filled with high-pressure hydrogen. Close the first valve 6, open the fourth valve 7, and close the third valve 8. The second electric telescopic rod 14 and the first electric telescopic rod 17 contract synchronously to drive the first piston 23 and the second piston 24 to descend, thereby continuously compressing the high-pressure hydrogen in the lower cavity of the kettle body 1 (the cavity below the second piston 24 in the kettle body 1), so that the hydrogen is compressed into a liquid. At the same time, the high-pressure hydrogen in the hydrogen tank 42 enters the upper cavity of the kettle body 1 (the cavity above the first piston 23 in the kettle body 1). Open the second valve 9 so that the liquid hydrogen enters the second conduit 22. The first electric telescopic rod 17 contracts to drive the second piston 24 to continue descending, so that the liquid hydrogen is pressed into the second conduit 22 to achieve liquid hydrogen filling. At the same time, close the fourth valve 7 and open the third valve 8. The second electric telescopic rod 14 extends to drive the first piston 23 to rise, compressing the high-pressure hydrogen in the upper cavity, thereby compressing the high-pressure hydrogen in the upper cavity into liquid hydrogen. Therefore, compression is achieved simultaneously during filling, improving the compression and filling efficiency. When the liquid hydrogen in the lower cavity is filled up, the second piston 24 continues to rise, so that the high-pressure hydrogen in the hydrogen tank 42 enters the lower cavity of the kettle body 1 through the second air inlet 4. The first piston 23 continues to rise to squeeze the liquid hydrogen in the upper cavity into the first conduit 21 to complete the filling.

[0039] Embodiment 2:

[0040] Referring to the attached Figures 5-6 , different from Embodiment 1: It further includes a liquid hydrogen storage tank 25 connected to the second conduit 22. The liquid hydrogen storage tank 25 is installed on a bracket. A fixator 26 is welded on the bracket. An arc-shaped block 261 is provided on the fixator 26. The arc-shaped block 261 and the liquid hydrogen storage tank 25 are fixed by bolts. The liquid outlet of the liquid hydrogen storage tank 25 is connected to the second conduit 27 through a conduit. A valve is installed on the second conduit 27. The other end of the second conduit 27 is fixedly connected to a tee joint two. One of the interfaces of the tee joint two is fixedly connected to the top of the filling cylinder 29. Both ends of the top of the filling cylinder 29 are respectively provided with a first liquid inlet 38 and a second liquid inlet 36. Both ends of the bottom of the filling cylinder 29 are respectively provided with a first liquid outlet 39 and a second liquid outlet 40. Valves are installed on the first liquid inlet 38, the second liquid inlet 36, the first liquid outlet 39, and the second liquid outlet 40. A third piston is slidably connected to the inner wall of the filling cylinder 29. One end of the third piston is fixedly connected to a second piston rod 33. A second sleeve 41 is fixedly installed at the top end of the filling cylinder 29. A rubber cylinder is fixedly installed in the second sleeve 41. The rubber cylinder is sleeved on the second piston rod 33 and is tightly squeezed with the second piston rod 33.

[0041] The right end of the second piston rod 33 is fixedly connected to the third traction disc 32. The left end of the third traction disc 32 is fixedly installed with a fifth support connection seat 35. The inner wall of the fifth support connection seat 35 is inserted with a third electric telescopic rod 31. The fifth support connection seat 35 and the third electric telescopic rod 31 are fixed by bolts. The opposite end of the third electric telescopic rod 31 is inserted into a sixth support connection seat 34, and the third electric telescopic rod 31 and the sixth support connection seat 34 are fixed by bolts.

[0042] During specific use, at this time, the autoclave 1 is filled with high-pressure hydrogen. Close the first valve 6, open the fourth valve 7, and close the third valve 8. The second electric telescopic rod 14 and the first electric telescopic rod 17 contract synchronously to drive the first piston 23 and the second piston 24 to descend, thereby continuously compressing the high-pressure hydrogen in the lower cavity of the autoclave 1 (the cavity below the second piston 24 in the autoclave 1), so that the hydrogen is compressed into a liquid. At the same time, the high-pressure hydrogen in the hydrogen tank 42 enters the upper cavity of the autoclave 1 (the cavity above the first piston 23 in the autoclave 1). Open the second valve 9 so that the liquid hydrogen enters the second conduit 22. The first electric telescopic rod 17 contracts to drive the second piston 24 to continue descending, so that the liquid hydrogen is pressed into the second conduit 22 to achieve liquid hydrogen filling. At the same time, close the fourth valve 7 and open the third valve 8. The second electric telescopic rod 14 extends to drive the first piston 23 to rise, compressing the high-pressure hydrogen in the upper cavity, so that the high-pressure hydrogen in the upper cavity is compressed into liquid hydrogen. Therefore, compression is achieved simultaneously during filling, improving the compression filling efficiency. When the liquid hydrogen in the lower cavity is filled, the second piston 24 continues to rise, so that the high-pressure hydrogen in the hydrogen tank 42 enters the lower cavity of the autoclave 1 through the second air inlet 4. The first piston 23 continues to rise to squeeze the liquid hydrogen in the upper cavity into the first conduit 21. The liquid hydrogen all enters the liquid hydrogen storage tank 25, then enters the tee pipe two 28, and then enters the filling cylinder 29.

[0043] The liquid hydrogen first enters the left cavity of the filling cylinder 29 (the left side of the third piston is called the left cavity, and the right side is called the right cavity). Open the valve on the first liquid outlet 39, close the valve on the second liquid outlet, open the valve on the second liquid inlet 36, close the valve on the first liquid inlet 38. The third electric telescopic rod 31 contracts to drive the third piston to move to the left, pressing the liquid hydrogen in the left cavity into the tee pipe three 30, thereby completing the filling. When the third piston moves to the leftmost side, the liquid hydrogen in the liquid hydrogen storage tank 25 enters the right cavity. Close the valve on the first liquid outlet 39, open the valve on the second liquid outlet, close the valve on the second liquid inlet 36, open the valve on the first liquid inlet 38. The third electric telescopic rod 31 extends to drive the third piston to move to the right, pressing the liquid hydrogen in the left cavity into the tee pipe three 30, thereby completing the filling.

[0044] Although the present invention has been described above with reference to the embodiments, various modifications thereof can be made and components thereof can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in the present invention can be combined with each other in any way, and the exhaustive description of these combinations is not given in this specification only for the sake of saving space and resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. Electric hydrogen compression and filling integrated skid, including a kettle body (1), Characterized in that: The inner wall of the kettle body (1) is slidably connected with a first piston (23) and a second piston (24). The top end of the second piston (24) is fixedly connected with a first piston rod (16). The outer side of the first piston rod (16) is sleeved with a piston tube (13), and the bottom end of the piston tube (13) is fixedly connected with the first piston (23); The upper and lower ends on the right side of the kettle body (1) are respectively provided with a first air inlet (5) and a second air inlet (4). The upper and lower ends on the left side of the kettle body (1) are respectively provided with a first liquid outlet (2) and a second liquid outlet (3). The first air inlet (5) and the second air inlet (4) are jointly connected to a hydrogen tank (42). The first liquid outlet (2) and the second liquid outlet (3) are jointly connected to a filling pipeline. Valves are installed on the first liquid outlet (2), the second liquid outlet (3), the first air inlet (5) and the second air inlet (4).

2. The electric hydrogen compression and filling integrated skid according to claim 1, Characterized in that, A first valve (6) is fixedly installed on the first liquid outlet (2), a second valve (9) is fixedly installed on the second liquid outlet (3), a third valve (8) is fixedly installed on the second air inlet (4), and a fourth valve (7) is fixedly installed on the first air inlet (5).

3. The electric hydrogen compression and filling integrated skid according to claim 1 or 2, Characterized in that, The end of the first liquid outlet (2) is fixedly connected with a first conduit (21), the end of the second liquid outlet (3) is fixedly connected with a second conduit (22), and the other end of the first conduit (21) is communicated with the second conduit (22).

4. The electric hydrogen compression and filling integrated skid according to claim 3, Characterized in that, A tee pipe one (20) is jointly connected between the first air inlet (5) and the second air inlet (4), and one of the interfaces of the tee pipe one (20) is connected to the air outlet of the hydrogen tank (42).

5. The electric hydrogen compression and filling integrated skid according to claim 4, Characterized in that, The top end of the first piston rod (16) is fixedly connected with a first traction plate (19). A first electric telescopic rod (17) is detachably installed between the first traction plate (19) and the top end of the kettle body (1).

6. The electric hydrogen compression and filling integrated skid according to claim 5, Characterized in that, A first support connection seat (18) is welded to the bottom end of the first traction plate (19). The first electric telescopic rod (17) is inserted into the inner wall of the first support connection seat (18), and the first electric telescopic rod (17) and the first support connection seat (18) are fixed by bolts; The bottom end of the first electric telescopic rod (17) is inserted into a second support connection seat (10). The second support connection seat (10) and the first electric telescopic rod (17) are fixed by bolts, and the second support connection seat (10) is welded to the top end of the kettle body (1).

7. The electric hydrogen compression and filling integrated skid according to claim 4, Characterized in that, A second traction disc (15) is fixedly installed at the top end of the piston tube (13), and a second electric telescopic rod (14) is detachably installed between the second traction disc (15) and the top end of the kettle body (1).

8. The electric hydrogen compression and filling integrated skid according to claim 7, characterized in that, A third support connection seat (43) is welded to the bottom end of the second traction disc (15), the second electric telescopic rod (14) is inserted into the inner wall of the third support connection seat (43), and the second electric telescopic rod (14) and the third support connection seat (43) are fixed by bolts; The bottom end of the second electric telescopic rod (14) is inserted into a fourth support connection seat (11), the fourth support connection seat (11) and the second electric telescopic rod (14) are fixed by bolts, and the fourth support connection seat (11) is welded to the top end of the kettle body (1).

9. The electric hydrogen compression and filling integrated skid according to claim 3, characterized in that, It further includes a liquid hydrogen storage tank (25) connected to the second conduit (22), the liquid outlet of the liquid hydrogen storage tank (25) is connected to the second conduit (27) through a conduit, the other end of the second conduit (27) is fixedly connected to a second three-way pipe, and one of the interfaces of the second three-way pipe is fixedly connected to the top of the filling cylinder (29). The two ends of the filling cylinder (29) are respectively provided with a first liquid inlet (38) and a second liquid inlet (36), and the two ends of the bottom of the filling cylinder (29) are respectively provided with a first liquid outlet (39) and a second liquid outlet (40). Valves are installed on the first liquid inlet (38), the second liquid inlet (36), the first liquid outlet (39) and the second liquid outlet (40), and the first liquid outlet (39) and the second liquid outlet (40) are jointly connected to a third three-way pipe (30); A third piston is slidably connected to the inner wall of the filling cylinder (29), and one end of the third piston is fixedly connected to a second piston rod (33).

10. The electric hydrogen compression and filling integrated skid according to claim 9, characterized in that, The right end of the second piston rod (33) is fixedly connected to a third traction disc (32), a fifth support connection seat (35) is fixedly installed at the left end of the third traction disc (32), the third electric telescopic rod (31) is inserted into the inner wall of the fifth support connection seat (35), and the fifth support connection seat (35) and the third electric telescopic rod (31) are fixed by bolts. The opposite end of the third electric telescopic rod (31) is inserted into a sixth support connection seat (34), and the third electric telescopic rod (31) and the sixth support connection seat (34) are fixed by bolts.

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