A hydraulic piston type hydrogen compressor with a multiple anti-leakage mechanism

Abstract

The present invention discloses a hydraulic piston type hydrogen compressor with a multiple anti-leakage mechanism, including a hydraulic cylinder, a piston assembly, a second piston, a partition plate, a first sliding groove and a second limiting groove. Compared with the existing hydrogen compressors, the designed hydraulic cylinder and cylinder of the present invention can simultaneously perform two hydrogen compressions, and the overall compression process is synchronous, forming a sharp contrast, which is beneficial for users to observe the working state of the compressor; the designed piston assembly of the present invention can timely supplement the parts with poor sealing in the cylinder, forming multiple sealing protections with the rest of the sealing rings; the designed cooling chamber and condensing pipe of the present invention can cool the cylinder during the hydrogen compression process, effectively control the internal and external temperature difference, and can quickly replace the condensing pipe, further extending the service life of the compressor; the designed shock absorption assembly of the present invention can effectively buffer the compressor and reduce the probability of damage to the compressor caused by vibration.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen compression, and specifically to a hydraulic piston type hydrogen compressor with a multiple anti-leakage mechanism. Background Art

[0002] Hydrogen energy is a clean secondary energy source, with advantages such as large energy density, zero pollution, and zero carbon emissions. As a clean, efficient, safe, and sustainable new energy, hydrogen energy helps to solve problems such as energy crisis and environmental pollution, and is the development direction of human strategic energy. With the development of new energy vehicles, the demand for high-pressure hydrogen is also increasing. However, most of the existing hydrogen compressors rely on the cooperation of oil cylinders and cylinders to compress gas, and can only complete one gas compression after relatively cumbersome steps, with low efficiency. A few that can perform two gas compressions simultaneously are not synchronous and cannot form a comparison, making it difficult to detect problems when the compressor malfunctions. In the existing hydrogen compressors, due to the single sealing means, hydrogen leakage is likely to occur. In the existing hydrogen compressors, a large amount of heat is generated during the gas compression process, resulting in too large a temperature difference between the inside and outside of the compressor, which is not conducive to extending its service life. In the existing hydrogen compressors, due to a certain vibration during operation, it is easy to cause damage to it, which is not conducive to the protection of the compressor. Summary of the Invention

[0003] The purpose of the present invention is to provide a hydraulic piston type hydrogen compressor with a multiple anti-leakage mechanism to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A hydraulic piston type hydrogen compressor with a multiple anti-leakage mechanism, including a hydraulic cylinder. Cooling chambers are symmetrically arranged on both sides of the hydraulic cylinder. A cylinder is installed inside the cooling chamber. A third sealing ring is fixedly connected inside the cylinder. A piston assembly is sleeved inside the third sealing ring. The piston assembly includes a second piston, a partition plate, a first sliding groove, a second sliding groove, a fourth sealing ring, a first sliding rod, a second sliding rod, a connecting rod, a first limiting groove, a first spring, and a second limiting groove. The second piston is sleeved inside the third sealing ring. A partition plate is arranged inside the second piston. A fourth sealing ring is installed at the top of the partition plate.

[0005] Preferably, an oil inlet is provided on the outer wall of the top of the hydraulic cylinder, and an oil outlet is provided on the outer wall of the bottom of the hydraulic cylinder. First sealing rings are symmetrically arranged inside the hydraulic cylinder. A first piston is sleeved inside the first sealing ring. A piston rod is fixedly connected to the outer wall of one side of the first piston, and one end of the piston rod is fixedly connected to the outer wall of one side of the second piston.

[0006] Preferably, first mounting seats are symmetrically arranged on both sides of the hydraulic cylinder, a second mounting seat is installed on one side of the cooling chamber, first bolts are distributively arranged on the outer wall of one side of the second mounting seat, and one end of each first bolt is installed inside the first mounting seat.

[0007] Preferably, a movable door is arranged at the bottom end of the cooling chamber, a second sealing ring is sleeved on the outer wall of one side of the movable door, and the second sealing ring is fixedly connected to the inner wall of one side of the cooling chamber. A condensing pipe is arranged on one side of the movable door. Installation pipes are symmetrically fixed at both ends of the condensing pipe, and the installation pipes are fixedly connected to the inner wall of one side of the cooling chamber. A mounting rod is sleeved on the inner wall of one side of the condensing pipe. Fixing nuts are symmetrically installed at both ends of the mounting rod, and the fixing nuts are arranged on one side of the cooling chamber.

[0008] Preferably, a pneumatic seal is fixedly connected to the outer wall of one side of the air cylinder, and the pneumatic seal is fixedly connected to the inner wall of one side of the cooling chamber. An air inlet is arranged on one side of the air cylinder, and an air outlet is arranged on one side of the air inlet.

[0009] Preferably, first sliding grooves are distributively formed in the outer wall of the top end of the partition plate. A first sliding rod is slidably connected to the inner wall of one side of each first sliding groove, and the first sliding rod is fixedly connected to the outer wall of the bottom end of the fourth sealing ring. A first limiting groove is formed in the outer wall of one side of the first sliding rod. A first spring is arranged inside the first limiting groove. Connecting rods are symmetrically fixed at both ends of the first spring, and one end of each connecting rod is slidably connected to the inner wall of one side of the first limiting groove.

[0010] Preferably, second sliding grooves are distributively formed in the outer wall of the top end of the partition plate. A second sliding rod is slidably connected to the inner wall of one side of each second sliding groove, and the second sliding rod is fixedly connected to the outer wall of the bottom end of the fourth sealing ring. A second limiting groove is formed in the outer wall of one side of the second sliding rod, and the other end of each connecting rod is slidably connected to the inner wall of one side of the second limiting groove.

[0011] Preferably, a vibration damping assembly is arranged at the bottom end of the hydraulic cylinder. The vibration damping assembly includes a base, a first slider, a second spring, a first shaft seat, a movable rod, a second shaft seat, a second slider, a guide rod and a third spring. The base is arranged at the bottom end of the hydraulic cylinder. The first slider is fixedly connected to the outer wall of one side of the cooling chamber, and the first slider is slidably connected to the inner wall of one side of the base. Second springs are symmetrically arranged inside the base, one end of each second spring is fixedly connected to the inner wall of one side of the base, and the other end is fixedly connected to the outer wall of one side of the first slider.

[0012] Preferably, the guide rod is fixedly connected to the inner wall of the bottom end of the base. The second slider is slidably connected to the outer wall of one side of the guide rod. The second shaft seat is fixedly connected to the outer wall of the top end of the second slider. The movable rod is rotatably connected inside the second shaft seat. The first shaft seat is fixedly connected to the outer wall of the bottom end of the cooling chamber, and the other end of the movable rod is rotatably connected inside the first shaft seat.

[0013] Preferably, a third spring is sleeved on the outer wall of one side of the guide rod, one end of the third spring is fixedly connected to the inner wall of one side of the base, and the other end is fixedly connected to the outer wall of one side of the second slider.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: Compared with the existing hydrogen compressor, the designed hydraulic cylinder and cylinder of the present invention can simultaneously perform two hydrogen compressions, and the overall compression process is synchronous, forming a sharp contrast, which is beneficial for users to observe the working state of the compressor; the designed piston assembly of the present invention can timely fill the parts with poor sealing in the cylinder, forming multiple sealing protections with the rest of the sealing rings; the designed cooling chamber and condensing pipe of the present invention can cool the cylinder during the hydrogen compression process, effectively control the internal and external temperature difference, and can quickly replace the condensing pipe, further extending the service life of the compressor; the designed damping assembly of the present invention can effectively buffer the compressor and reduce the probability of damage caused by vibration to the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the overall front sectional structure schematic diagram of the present invention;

[0016] Figure 2 is the three-dimensional structure schematic diagram of the hydraulic cylinder and cooling chamber of the present invention;

[0017] Figure 3 is the top sectional structure schematic diagram of the hydraulic cylinder and cooling chamber of the present invention;

[0018] Figure 4 is Figure 3 the enlarged structure diagram of area A in

[0019] Figure 5 is Figure 3 the enlarged structure diagram of area B in

[0020] Figure 6 is the three-dimensional structure schematic diagram of the piston assembly of the present invention;

[0021] Figure 7 is Figure 6 the enlarged structure diagram of area C in

[0022] Figure 8 is the three-dimensional sectional structure schematic diagram of the piston assembly of the present invention;

[0023] Figure 9 is Figure 8 the enlarged structure diagram of area D in

[0024] Figure 10 is the top sectional structure schematic diagram of the piston assembly of the present invention;

[0025] Figure 11 is Figure 10 an enlarged view of the structure of region E in

[0026] Figure 12 a schematic top - sectional view of the first limiting groove of the present invention;

[0027] Figure 13 a schematic top - sectional view of the second limiting groove of the present invention;

[0028] Figure 14 a schematic three - dimensional view of the condenser tube of the present invention;

[0029] In the figure: 1. Hydraulic cylinder; 11. Oil inlet; 12. Oil outlet; 13. First piston; 14. First sealing ring; 15. Piston rod; 16. First mounting seat; 2. Cooling chamber; 21. Second mounting seat; 22. First bolt; 23. Movable door; 24. Second sealing ring; 25. Mounting rod; 26. Fixed nut; 3. Cylinder; 31. Pneumatic seal; 32. Third sealing ring; 33. Air inlet; 34. Air outlet; 4. Piston assembly; 41. Second piston; 42. Partition plate; 421. First chute; 422. Second chute; 43. Fourth sealing ring; 44. First sliding rod; 45. Second sliding rod; 46. Connecting rod; 47. First limiting groove; 48. First spring; 49. Second limiting groove; 5. Condenser tube; 51. Mounting tube; 6. Vibration - damping assembly; 61. Base; 62. First slider; 63. Second spring; 64. First shaft seat; 65. Movable rod; 66. Second shaft seat; 67. Second slider; 68. Guide rod; 69. Third spring. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figure 1-14, an embodiment provided by the present invention: a hydraulic piston type hydrogen compressor with a multiple anti-leakage mechanism, including a hydraulic cylinder 1, a cooling chamber 2, a cylinder 3, a piston assembly 4, a condensing pipe 5 and a vibration damping assembly 6. Cooling chambers 2 are symmetrically arranged on both sides of the hydraulic cylinder 1. A cylinder 3 is installed inside the cooling chamber 2. A third sealing ring 32 is fixedly connected inside the cylinder 3. A piston assembly 4 is sleeved inside the third sealing ring 32. The piston assembly 4 includes a second piston 41, a partition plate 42, a first chute 421, a second chute 422, a fourth sealing ring 43, a first slide bar 44, a second slide bar 45, a connecting rod 46, a first limiting groove 47, a first spring 48 and a second limiting groove 49. The second piston 41 is sleeved inside the third sealing ring 32. A partition plate 42 is arranged inside the second piston 41. A fourth sealing ring 43 is installed at the top end of the partition plate 42; an oil inlet 11 is opened on the outer wall of the top end of the hydraulic cylinder 1, and an oil outlet 12 is opened on the outer wall of the bottom end of the hydraulic cylinder 1. First sealing rings 14 are symmetrically arranged inside the hydraulic cylinder 1. A first piston 13 is sleeved inside the first sealing ring 14. A piston rod 15 is fixedly connected to the outer wall of one side of the first piston 13, and one end of the piston rod 15 is fixedly connected to the outer wall of one side of the second piston 41. The oil inlet 11 and the oil outlet 12 are communicated with an oil tank, an oil pump, a reversing valve, etc.; first mounting seats 16 are symmetrically arranged on both sides of the hydraulic cylinder 1. A second mounting seat 21 is installed on one side of the cooling chamber 2. First bolts 22 are distributed on the outer wall of one side of the second mounting seat 21, and one end of the first bolt 22 is installed inside the first mounting seat 16; a movable door 23 is arranged at the bottom end of the cooling chamber 2. A second sealing ring 24 is sleeved on the outer wall of one side of the movable door 23, and the second sealing ring 24 is fixedly connected to the inner wall of one side of the cooling chamber 2. A condensing pipe 5 is arranged on one side of the movable door 23. Mounting pipes 51 are symmetrically fixed at both ends of the condensing pipe 5, and the mounting pipes 51 are fixedly connected to the inner wall of one side of the cooling chamber 2. A mounting rod 25 is sleeved on the inner wall of one side of the condensing pipe 5. Fixing nuts 26 are symmetrically installed at both ends of the mounting rod 25, and the fixing nuts 26 are arranged on one side of the cooling chamber 2; a pneumatic seal 31 is fixedly connected to the outer wall of one side of the cylinder 3, and the pneumatic seal 31 is fixedly connected to the inner wall of one side of the cooling chamber 2. An air inlet 33 is arranged on one side of the cylinder 3. An air outlet 34 is arranged on one side of the air inlet 33. Check valves are respectively installed at the air inlet 33 and the air outlet 34 to control the flow. The mounting pipe 51 is used to mount the condensing pipe 5 and introduce coolant into it; first chutes 421 are distributed on the outer wall of the top end of the partition plate 42. A first slide bar 44 is slidably connected to the inner wall of one side of the first chute 421, and the first slide bar 44 is fixedly connected to the outer wall of the bottom end of the fourth sealing ring 43. A first limiting groove 47 is opened on the outer wall of one side of the first slide bar 44. A first spring 48 is arranged inside the first limiting groove 47. Connecting rods 46 are symmetrically fixed at both ends of the first spring 48, and one end of the connecting rod 46 is slidably connected to the inner wall of one side of the first limiting groove 47;The outer wall of the top end of the partition plate 42 is provided with second sliding grooves 422 distributed thereon. A second sliding rod 45 is slidably connected to the inner wall of one side of the second sliding groove 422, and the second sliding rod 45 is fixedly connected to the outer wall of the bottom end of the fourth sealing ring 43. A second limiting groove 49 is provided on the outer wall of one side of the second sliding rod 45, and the other end of the connecting rod 46 is slidably connected to the inner wall of one side of the second limiting groove 49; a vibration damping assembly 6 is arranged at the bottom end of the hydraulic cylinder 1. The vibration damping assembly 6 includes a base 61, a first slider 62, a second spring 63, a first shaft seat 64, a movable rod 65, a second shaft seat 66, a second slider 67, a guide rod 68 and a third spring 69. A base 61 is arranged at the bottom end of the hydraulic cylinder 1. A first slider 62 is fixedly connected to the outer wall of one side of the cooling chamber 2, and the first slider 62 is slidably connected to the inner wall of one side of the base 61. Second springs 63 are symmetrically arranged inside the base 61, and one end of each second spring 63 is fixedly connected to the inner wall of one side of the base 61, and the other end is fixedly connected to the outer wall of one side of the first slider 62; a guide rod 68 is fixedly connected to the inner wall of the bottom end of the base 61. A second slider 67 is slidably connected to the outer wall of one side of the guide rod 68. A second shaft seat 66 is fixedly connected to the outer wall of the top end of the second slider 67. A movable rod 65 is rotatably connected inside the second shaft seat 66. A first shaft seat 64 is fixedly connected to the outer wall of the bottom end of the cooling chamber 2, and the other end of the movable rod 65 is rotatably connected inside the first shaft seat 64; a third spring 69 is sleeved on the outer wall of one side of the guide rod 68, and one end of the third spring 69 is fixedly connected to the inner wall of one side of the base 61, and the other end is fixedly connected to the outer wall of one side of the second slider 67.;

[0032] Working principle: When using the present invention to compress hydrogen, first, hydrogen is introduced into the cylinder 3 through the air inlet 33. When the inner cavity of the cylinder 3 is filled with hydrogen, the gas flow is closed. Then, hydraulic oil is introduced into the left and right cavities of the hydraulic cylinder 1 from the oil inlet 11, and the first piston 13 is pushed. The first piston 13 drives the piston assembly 4 to slide through the piston rod 15. The second piston 41 moves outward to compress the hydrogen. When compressed to a certain extent, the air outlet 34 is opened to discharge the compressed hydrogen. The hydraulic oil is pumped out through the oil outlet 12 to reset each component. Then, the air outlet 34 is closed to complete the entire compression process. When the condenser tube 5 needs to be replaced, the movable door 23 at the bottom of the cooling chamber 2 can be opened, the condenser tube 5 and the installation tube 51 are removed, the fixing nut 26 is unscrewed, and then the installation rod 25 is pulled out to remove the condenser tube 5. After replacement, the movable door 23 is closed. When there is a problem with the internal seal of the cylinder 3, since the first spring 48 in the first limiting groove 47 is in a compressed state and the outer side of the fourth sealing ring 43 abuts against the inside of the third sealing ring 32, if the seal is not tight, the fourth sealing ring 43 will lose some constraints. Under the reset action of the first spring 48, the connecting rods 46 on both sides rotate outward and drive the second sliding rod 45 to slide outward. At the same time, the first sliding rod 44 also slides outward. The first sliding rod 44 and the second sliding rod 45 drive the fourth sealing ring 43 to automatically fill the part with poor seal. When using the shock absorption assembly 6 for shock absorption, the cooling chamber 2 drives the first slider 62 to slide on the side wall of the base 61. The second springs 63 on both sides elastically buffer the first slider 62. At the same time, the cooling chamber 2 drives the movable rod 65 through the first shaft seat 64. The movable rod 65 drives the second slider 67 through the second shaft seat 66. The second slider 67 slides on the guide rod 68, causing the third spring 69 to expand and contract. The buffering effect of the third spring 69 on the second slider 67 will be feedback to the cooling chamber 2. Among them, the first sealing ring 14 is used for the internal seal of the hydraulic cylinder 1. The first mounting seat 16, the second mounting seat 21, and the first bolt 22 are used to fix the hydraulic cylinder 1 and the cooling chamber 2. The second sealing ring 24 is used for the seal of the cooling chamber 2. The pneumatic seal 31 is used for the seal of the cylinder 3. The partition plate 42 is used to assist in installing the fourth sealing ring 43. The first chute 421 and the second chute 422 are used to install the first sliding rod 44 and the second sliding rod 45. The second limiting groove 49 is used to install the connecting rod 46.

[0033] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A hydraulic piston type hydrogen compressor with a multiple anti-leakage mechanism, comprising a hydraulic cylinder (1), characterized in that: On both sides of the hydraulic cylinder (1), cooling chambers (2) are symmetrically arranged. Inside the cooling chamber (2), a cylinder (3) is installed. Inside the cylinder (3), a third sealing ring (32) is fixedly connected. Inside the third sealing ring (32), a piston assembly (4) is sleeved. The piston assembly (4) includes a second piston (41). Inside the third sealing ring (32), the second piston (41) is sleeved. Inside the second piston (41), a partition plate (42) is arranged. At the top of the partition plate (42), a fourth sealing ring (43) is installed. On the outer wall at the top of the partition plate (42), first sliding grooves (421) are distributed. On one inner wall of the first sliding groove (421), a first sliding rod (44) is slidably connected, and the first sliding rod (44) is fixedly connected to the outer wall at the bottom of the fourth sealing ring (43). On one outer wall of the first sliding rod (44), a first limiting groove (47) is opened. Inside the first limiting groove (47), a first spring (48) is arranged. At both ends of the first spring (48), connecting rods (46) are symmetrically fixed, and one end of the connecting rod (46) is slidably connected to one inner wall of the first limiting groove (47). On the outer wall at the top of the partition plate (42), second sliding grooves (422) are distributed. On one inner wall of the second sliding groove (422), a second sliding rod (45) is slidably connected, and the second sliding rod (45) is fixedly connected to the outer wall at the bottom of the fourth sealing ring (43). On one outer wall of the second sliding rod (45), a second limiting groove (49) is opened, and the other end of the connecting rod (46) is slidably connected to one inner wall of the second limiting groove (49).

2. The hydraulic piston-type hydrogen compressor with a multiple anti-leakage mechanism according to claim 1, wherein: On the outer wall at the top of the hydraulic cylinder (1), an oil inlet (11) is opened. On the outer wall at the bottom of the hydraulic cylinder (1), an oil outlet (12) is opened. Inside the hydraulic cylinder (1), first sealing rings (14) are symmetrically arranged. Inside the first sealing rings (14), a first piston (13) is sleeved. On one outer wall of the first piston (13), a piston rod (15) is fixedly connected, and one end of the piston rod (15) is fixedly connected to one outer wall of the second piston (41).

3. A hydraulic piston type hydrogen compressor with a multiple anti-leakage mechanism according to claim 1, characterized in that: On both sides of the hydraulic cylinder (1), first mounting seats (16) are symmetrically arranged. On one side of the cooling chamber (2), a second mounting seat (21) is installed. On one outer wall of the second mounting seat (21), first bolts (22) are distributed, and one end of the first bolt (22) is installed inside the first mounting seat (16).

4. The hydraulic piston type hydrogen compressor with a multiple anti-leakage mechanism according to claim 3, characterized in that: At the bottom of the cooling chamber (2), a movable door (23) is arranged. On one outer wall of the movable door (23), a second sealing ring (24) is sleeved, and the second sealing ring (24) is fixedly connected to one inner wall of the cooling chamber (2). On one side of the movable door (23), a condensing pipe (5) is arranged. At both ends of the condensing pipe (5), mounting pipes (51) are symmetrically fixed, and the mounting pipes (51) are fixedly connected to one inner wall of the cooling chamber (2). Inside one inner wall of the condensing pipe (5), a mounting rod (25) is sleeved. At both ends of the mounting rod (25), fixing nuts (26) are symmetrically installed, and the fixing nuts (26) are arranged on one side of the cooling chamber (2).

5. A hydraulic piston type hydrogen compressor with a multiple anti-leakage mechanism according to claim 1, characterized in that: A pneumatic seal (31) is fixedly connected to the outer wall on one side of the cylinder (3), and the pneumatic seal (31) is fixedly connected to the inner wall on one side of the cooling chamber (2). An air inlet (33) is provided on one side of the cylinder (3), and an air outlet (34) is provided on one side of the air inlet (33).

6. The hydraulic piston type hydrogen compressor with multiple anti-leakage mechanisms according to claim 1, wherein: A vibration damping component (6) is provided at the bottom end of the hydraulic cylinder (1). The vibration damping component (6) includes a base (61). The base (61) is provided at the bottom end of the hydraulic cylinder (1). A first slider (62) is fixedly connected to the outer wall on one side of the cooling chamber (2), and the first slider (62) is slidably connected to the inner wall on one side of the base (61). Second springs (63) are symmetrically arranged inside the base (61), and one end of each second spring (63) is fixedly connected to the inner wall on one side of the base (61), and the other end is fixedly connected to the outer wall on one side of the first slider (62).

7. The hydraulic piston type hydrogen compressor with multiple anti-leakage mechanisms according to claim 6, characterized in that: A guide rod (68) is fixedly connected to the inner wall at the bottom end of the base (61). A second slider (67) is slidably connected to the outer wall on one side of the guide rod (68). A second shaft seat (66) is fixedly connected to the outer wall at the top end of the second slider (67). A movable rod (65) is rotatably connected inside the second shaft seat (66). A first shaft seat (64) is fixedly connected to the outer wall at the bottom end of the cooling chamber (2), and the other end of the movable rod (65) is rotatably connected inside the first shaft seat (64).

8. A hydraulic piston type hydrogen compressor with a multiple anti-leakage mechanism according to claim 7, characterized in that: A third spring (69) is sleeved on the outer wall on one side of the guide rod (68), and one end of the third spring (69) is fixedly connected to the inner wall on one side of the base (61), and the other end is fixedly connected to the outer wall on one side of the second slider (67).

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