CN213928667U

CN213928667U - Hydrogen hydraulic compressor

Info

Publication number: CN213928667U
Application number: CN202022414334.7U
Authority: CN
Inventors: 李伟峰; 谭锐; 张元坤; 胡葵; 方红星; 张志红
Original assignee: Wuhan Qidakang Environmental Protection Technology Stock Co ltd
Current assignee: Wuhan Qidakang Environmental Protection Technology Stock Co ltd
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-08-10
Anticipated expiration: 2030-10-27

Abstract

The utility model discloses a hydrogen hydraulic compressor, including one-level pneumatic valve combination and one-level piston, one-level jar enclosing cover is installed to the right-hand member of one-level pneumatic valve combination, and the right-hand member of one-level jar enclosing cover settles through threaded connection has one-level cooling cylinder end cover, one-level cooling water inlet joint has been seted up to the right-hand member of one-level cooling cylinder end cover, and the bottom side that one-level cooling water inlet connects installs one-level pressure cylinder, the one-level piston is settled in the medial extremity of one-level pressure cylinder, and the outside right-hand member of one-level pressure cylinder installs one-level cooling cylinder and one-level jar inner cup, one-level. The utility model provides a module combination formula hydrogen compressor host computer structure, the later stage of being convenient for is to the maintenance of equipment maintenance, and during the host computer maintenance, the direct change can be dismantled with four big modules in pneumatic valve combination body, compression chamber, isolation chamber, oil power chamber, reduces the maintenance duration cost.

Description

Hydrogen hydraulic compressor

Technical Field

The utility model relates to a compressor technical field specifically is a hydrogen hydraulic compressor.

Background

The main engine of the hydrogen compressor is an important component on the hydrogen compressor, and is responsible for the compression of gas, the working performance of the main engine of the hydrogen compressor directly influences the work of the hydrogen compressor, the current general hydrogen compressor adopts a metal diaphragm compressor, the metal diaphragm type hydrogen compressor needs to adopt an extremely thin metal diaphragm to completely separate the compressed gas from hydraulic oil, a hydraulic structure and a cooling system are also complex, the technical difficulty is far higher than that of the conventional compressor, and the discharge capacity of the compressor is low.

The existing hydrogen hydraulic compressor has the defects that:

1. the existing hydrogen hydraulic compressor is inconvenient to carry out combined design on the compressor according to requirements, so that the compressor is difficult to maintain and repair equipment at the later stage, and when a host is maintained, four modules, namely a gas valve combination body, a compression cavity, an isolation cavity and an oil power cavity cannot be detached and directly replaced, so that the maintenance time and the cost are high;

2. the existing hydrogen hydraulic compressor can not use the piston as an integral piston, so that when the piston is in contact with hydrogen gas, the requirement for preventing hydrogen embrittlement is low, deformation is easily generated under a high-pressure condition, the service life of a cylinder is short, and the practicability is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hydrogen hydraulic compressor to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a hydrogen hydraulic compressor comprises a first-stage air valve combination body and a first-stage piston, wherein a first-stage cylinder outer cover is installed at the right end of the first-stage air valve combination body, a first-stage cooling cylinder end cover is arranged at the right end of the first-stage cylinder outer cover in a threaded connection mode, a first-stage cooling water inlet connector is arranged at the right end of the first-stage cooling cylinder end cover, a first-stage pressurizing cylinder is installed at the bottom end side of the first-stage cooling water inlet connector, the first-stage piston is arranged at the inner side end of the first-stage pressurizing cylinder, a first-stage cooling cylinder and a first-stage cylinder inner cover are installed at the right end of the outer side of the first-stage pressurizing cylinder, a first-stage cooling water outlet connector is arranged at the bottom end of the outer side of the first-stage cooling cylinder, a first-stage long screw rod is installed at the right end of the first-stage cylinder inner cover, a first-stage piston hinge assembly is installed at the end of the first-stage sealing isolation cavity assembly, and the right-hand member of the first-level piston hinge assembly is arranged with a piston rod, the inner side of the piston rod is provided with an oil cavity guide cover near the right-hand member of the first-level sealing isolation cavity assembly, the right-hand member outer side of the oil cavity guide cover is provided with an oil cylinder barrel, the middle end of the oil cylinder barrel is internally provided with an oil cylinder piston, the end part of the oil cylinder piston is provided with an oil cylinder piston connecting block, the right-hand member of the oil cylinder barrel is provided with a second-level sealing isolation cavity assembly, the right-hand member of the second-level sealing isolation cavity assembly is provided with a second-level cylinder inner cover, the right-hand member side of the piston rod is provided with a second-level piston hinge assembly, the right-hand member of the second-level piston hinge assembly is provided with a second-level piston, the right-hand member of the second-level cylinder inner cover is provided with a second-level cooling cylinder barrel, the inner side end of the second-level cooling cylinder barrel is provided with a second-level pressurizing cylinder barrel, and the upper and lower both sides of second grade cooling cylinder have second grade cooling water outlet to connect and second grade cooling water inlet to connect to settle, the second grade cylinder enclosing cover is installed to the right-hand member of second grade cooling cylinder, and settles in the right-hand member middle part of second grade cylinder enclosing cover has the second grade air valve combination, the compressor is installed to the bottom of second grade air valve combination and is supported the adjustment support.

Preferably, a first compression cavity is formed in the first-stage supercharging cylinder barrel, a second compression cavity is formed in the second-stage supercharging cylinder barrel, and the second compression cavity is communicated with the first compression cavity.

Preferably, the oil cylinder barrel is internally provided with sub oil cavities, the sub oil cavities are symmetrically distributed around the center of the oil cylinder piston, and the outer sides of the first-stage supercharging cylinder barrel and the second-stage supercharging cylinder barrel are provided with water jacket cylinders.

Preferably, one end of the piston rod is connected with the first-stage piston in the first-stage pressurizing cylinder barrel through a first-stage piston hinge assembly, and the other end of the piston rod is connected with the second-stage piston in the second-stage pressurizing cylinder barrel through a second-stage piston hinge assembly.

Preferably, the first-stage air valve combination body and the first-stage supercharging cylinder barrel are communicated with each other, and the second-stage air valve combination body and the second-stage supercharging cylinder barrel are communicated with each other.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model provides a module combination formula hydrogen compressor host computer structure, the later stage of being convenient for is to the maintenance of equipment maintenance, and during the host computer maintenance, the direct change can be dismantled with four big modules in pneumatic valve combination body, compression chamber, isolation chamber, oil power chamber, reduces the maintenance duration cost.

2. The utility model aims to provide a, the piston is monobloc piston, because contact gas is hydrogen, requires to prevent that hydrogen is fragile, and the material intensity of present anti hydrogen brittle performance is lower in order to prove, produces deformation easily under the high pressure condition. The mechanical property is better after the integral structure is made, and the service life of the cylinder is longer.

3. The cylinder compression cavity and the piston of the utility model adopt an oil-free lubrication structure, so that the process gas is protected from being polluted; the scheme is wide in hydrogen gas inlet pressure range, a pressure regulator is not needed at an inlet, and in the working process of the scheme cylinder, the piston stroke is larger than 300mm, the clearance volume is small, and the volumetric efficiency is high.

4. The scheme of the utility model adopts the water-cooled cylinder, reduces the operation temperature and prolongs the service life, and the scheme aims to provide a module combined type hydrogen compressor host structure, which is convenient for the later maintenance of equipment, and when the host is maintained, the four modules of the air valve combination body, the compression cavity, the balance cavity and the oil power cavity can be detached and directly replaced, thereby reducing the maintenance time cost; the piston is an integral piston, and the requirement on hydrogen embrittlement resistance is high due to the fact that the contact gas is hydrogen, so that the strength of a material with hydrogen embrittlement resistance is low, the material is easy to deform under a high-pressure condition, the mechanical property is good after the material is integrally made, the service life of the piston is long, the scheme is modular design, and the requirement on the technical capability of maintenance personnel is low.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. a first-stage air valve combination body; 2. a primary cylinder outer cover; 3. a first-stage cooling cylinder end cover; 4. a primary cooling water inlet joint; 5. a first-stage supercharging cylinder barrel; 6. a primary piston; 7. a first-stage cooling cylinder barrel; 8. a primary cooling water outlet joint; 9. a first-stage cylinder inner cover; 10. a first-stage long screw; 11. a primary sealed isolated cavity assembly; 12. a primary piston hinge assembly; 13. a piston rod; 14. an oil cavity guide cover; 15. an oil cylinder barrel; 16. a cylinder piston; 17. a cylinder piston connecting block; 18. a secondary sealed isolated cavity assembly; 19. a secondary piston hinge assembly; 20. a secondary piston; 21. a secondary cylinder inner cover; 22. cooling the end cover of the cylinder barrel in a second stage; 23. a second-stage cooling cylinder barrel; 24. a two-stage supercharging cylinder barrel; 25. a secondary cooling water outlet joint; 26. a secondary cooling water inlet joint; 27. a secondary cylinder outer cover; 28. a secondary air valve combination body; 29. the compressor supports the adjustment bracket.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, the present invention provides an embodiment: a hydrogen hydraulic compressor comprises a primary air valve combination 1, a primary cylinder outer cover 2, a primary cooling cylinder end cover 3, a primary cooling water inlet connector 4, a primary pressurizing cylinder 5, a primary piston 6, a primary cooling cylinder 7, a primary cooling water outlet connector 8, a primary cylinder inner cover 9, a primary long screw rod 10, a primary sealing isolation cavity component 11, a primary piston hinge component 12, a piston rod 13, an oil cavity guide cover 14, an oil cylinder 15, an oil cylinder piston 16, an oil cylinder piston connecting block 17, a secondary sealing isolation cavity component 18, a secondary piston hinge component 19, a secondary piston 20, a secondary cylinder inner cover 21, a secondary cooling cylinder end cover 22, a secondary cooling cylinder 23, a secondary pressurizing cylinder 24, a secondary cooling water outlet connector 25, a secondary cooling water inlet connector 26, a secondary cylinder outer cover 27, a secondary air valve combination 28 and a compressor support adjusting bracket 29, the right-hand member of one-level air valve combination 1 installs one-level cylinder enclosing cover 2, and the right-hand member of one-level cylinder enclosing cover 2 is settled through threaded connection has one-level cooling cylinder end cover 3, the right-hand member of one-level cooling cylinder end cover 3 has been seted up one-level cooling water inlet joint 4, and the bottom side of one-level cooling water inlet joint 4 installs one-level pressure boost cylinder 5, one-level piston 6 is settled at the medial extremity of one-level pressure boost cylinder 5, and the outside right-hand member of one-level pressure boost cylinder 5 installs one-level cooling cylinder 7 and one-level cylinder inner cover 9, the outside bottom portion of one-level cooling cylinder 7 has been seted up one-level cooling water outlet joint 8, the right-hand member of one-level cylinder inner cover 9 installs one-level long screw rod 10, and the outside of one-level long screw rod 10 is settled has one-level sealed isolation chamber subassembly 11, one-level piston hinge subassembly 12 is installed to the tip of one-level sealed isolation chamber subassembly 11, and the right-hand member of one-level piston hinge subassembly 12 is settled has piston 13, an oil chamber guide cover 14 is arranged at the right end of the inner side of the piston rod 13 close to the primary sealed isolation cavity component 11, an oil cylinder barrel 15 is arranged at the right end outer side of the oil chamber guide cover 14, an oil cylinder piston 16 is arranged inside the middle end of the oil cylinder barrel 15, an oil cylinder piston connecting block 17 is arranged at the end part of the oil cylinder piston 16, a secondary sealed isolation cavity component 18 is arranged at the right end of the oil cylinder barrel 15, a secondary cylinder inner cover 21 is arranged at the right end of the secondary sealed isolation cavity component 18, a secondary piston hinge component 19 is arranged at the right end side of the piston rod 13, a secondary piston 20 is arranged at the right end of the secondary piston hinge component 19, a secondary cooling cylinder end cover 22 is arranged at the right end of the secondary cylinder inner cover 21, a secondary cooling cylinder 23 is arranged at the right end of the secondary cooling cylinder end cover 22, a secondary supercharging cylinder 24 is arranged at the inner side end of the secondary cooling cylinder 23, a secondary cooling water outlet joint 25 and a secondary cooling water inlet joint 26 are arranged at the upper side and the lower side of the secondary cooling cylinder 23, the right end of the second-stage cooling cylinder 23 is provided with a second-stage cylinder outer cover 27, the middle part of the right end of the second-stage cylinder outer cover 27 is provided with a second-stage air valve combination body 28, and the bottom end of the second-stage air valve combination body 28 is provided with a compressor supporting and adjusting support 29.

Furthermore, a first compression cavity is formed inside the first-stage supercharging cylinder barrel 5, a second compression cavity is formed inside the second-stage supercharging cylinder barrel 24, the second compression cavity and the first compression cavity are communicated with each other, a sub-oil cavity is formed inside the oil cylinder barrel 15, the sub-oil cavities are symmetrically distributed about the center of the oil cylinder piston 16, water jacket cylinders are arranged outside the first-stage supercharging cylinder barrel 5 and the second-stage supercharging cylinder barrel 24, later-stage maintenance and repair of equipment are facilitated, when the body is maintained, four modules can be detached and directly replaced, and maintenance time cost is reduced;

furthermore, one end of the piston rod 13 is connected with the primary piston 6 in the primary pressurizing cylinder barrel 5 through the primary piston hinge assembly 12, the other end of the piston rod 13 is connected with the secondary piston 20 in the secondary pressurizing cylinder barrel 24 through the secondary piston hinge assembly 19, and the requirement on hydrogen embrittlement resistance is high due to the fact that the contact gas is hydrogen gas, so that the strength of a material with hydrogen embrittlement resistance is low, the material is easy to deform under a high-pressure condition, the mechanical property is good after the material is made into a whole, and the service life of the cylinder is long;

further, one-level pneumatic valve association 1, communicate each other between one-level pressure cylinder 5, communicate each other between second grade pneumatic valve association 28 and the second grade pressure cylinder 24 simultaneously, one-level pressure cylinder 5 is connected to the one end that oil cylinder 15 passes through piston rod 13, and second grade pressure cylinder 24 is connected to the other end that oil cylinder 15 passes through piston rod 13, the water-cooled cylinder, the operating temperature has been reduced, increase life, this scheme aim at provides a module combination formula hydrogen compressor host computer structure, the later stage of being convenient for is to the equipment maintenance, and the scheme is modularized design, it is lower to maintainer technical capacity requirement, adaptability is stronger.

The working principle is as follows: this scheme is when using, hydrogen passes through in the one-level pneumatic valve association 1 gets into one-level pressure boost cylinder 5, discharge through one-level pneumatic valve association 1 after the one-level compression, gas after the one-level compression passes through in the second grade pneumatic valve association 28 gets into second grade pressure boost cylinder 24, discharge through second grade compression to 45MPa back through second grade pneumatic valve association 28, one-level cooling water inlet connects 4, one-level cooling water outlet connects 8 and is connected with cooling tower respectively, cool off one-level pressure boost cylinder 5 through cooling water in compression process, second grade cooling water inlet connects 26, second grade cooling water outlet connects 25 and is connected with cooling tower respectively, cool off second grade pressure boost cylinder 24 through cooling water in compression process.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a hydrogen hydraulic pressure compressor, includes one-level gas valve combination body (1) and one-level piston (6), its characterized in that: the right end of the first-level air valve combination body (1) is provided with a first-level cylinder outer cover (2), the right end of the first-level cylinder outer cover (2) is provided with a first-level cooling cylinder end cover (3) in a threaded connection mode, the right end of the first-level cooling cylinder end cover (3) is provided with a first-level cooling water inlet connector (4), the bottom end side of the first-level cooling water inlet connector (4) is provided with a first-level pressurizing cylinder (5), the first-level piston (6) is arranged at the inner side end of the first-level pressurizing cylinder (5), the right end of the outer side of the first-level pressurizing cylinder (5) is provided with a first-level cooling cylinder (7) and a first-level cylinder inner cover (9), the bottom end of the outer side of the first-level cooling cylinder (7) is provided with a first-level cooling water outlet connector (8), the right end of the first-level cylinder inner cover (9) is provided with a first-level long screw rod (10), and the outer side of the first-level long screw rod (10) is provided with a first-level sealing isolation cavity assembly (11), a primary piston hinge assembly (12) is installed at the end part of the primary sealing isolation cavity assembly (11), a piston rod (13) is arranged at the right end of the primary piston hinge assembly (12), an oil cavity guide cover (14) is installed at the inner side of the piston rod (13) close to the right end of the primary sealing isolation cavity assembly (11), an oil cylinder barrel (15) is arranged at the outer side of the right end of the oil cavity guide cover (14), an oil cylinder piston (16) is installed at the middle end of the oil cylinder barrel (15), an oil cylinder piston connecting block (17) is installed at the end part of the oil cylinder piston (16), a secondary sealing isolation cavity assembly (18) is arranged at the right end of the oil cylinder barrel (15), a secondary cylinder inner cover (21) is arranged at the right end of the secondary sealing isolation cavity assembly (18), a secondary piston hinge assembly (19) is installed at the right end side of the piston rod (13), and a secondary piston (20) is arranged at the right end of the secondary piston hinge assembly (19), second grade cooling cylinder end cover (22) are installed to the right-hand member of second grade cylinder inner cover (21), and the right side end of second grade cooling cylinder end cover (22) settles and have second grade cooling cylinder (23), second grade pressure boost cylinder (24) are installed to the medial extremity of second grade cooling cylinder (23), and settle the upper and lower both sides of second grade cooling cylinder (23) have second grade cooling water outlet joint (25) and second grade cooling water inlet joint (26), second grade cylinder enclosing cover (27) are installed to the right-hand member of second grade cooling cylinder (23), and settle the right-hand member middle part of second grade cylinder enclosing cover (27) has second grade air valve combination (28), compressor support adjustment support (29) are installed to the bottom of second grade air valve combination (28).

2. The hydrogen hydraulic compressor according to claim 1, characterized in that: a first compression cavity is formed in the first-stage supercharging cylinder barrel (5), a second compression cavity is formed in the second-stage supercharging cylinder barrel (24), and the second compression cavity is communicated with the first compression cavity.

3. The hydrogen hydraulic compressor according to claim 1, characterized in that: the oil cylinder barrel (15) is internally provided with sub oil cavities, the sub oil cavities are symmetrically distributed about the center of the oil cylinder piston (16), and the outer sides of the first-stage supercharging cylinder barrel (5) and the second-stage supercharging cylinder barrel (24) are provided with water jacket cylinders.

4. The hydrogen hydraulic compressor according to claim 1, characterized in that: one end of the piston rod (13) is connected with the first-stage piston (6) in the first-stage pressurizing cylinder barrel (5) through the first-stage piston hinge assembly (12), and the other end of the piston rod (13) is connected with the second-stage piston (20) in the second-stage pressurizing cylinder barrel (24) through the second-stage piston hinge assembly (19).

5. The hydrogen hydraulic compressor according to claim 1, characterized in that: the primary air valve combination body (1) and the primary pressurizing cylinder barrel (5) are communicated with each other, and the secondary air valve combination body (28) and the secondary pressurizing cylinder barrel (24) are communicated with each other.