CN117189545A - Reducing piston rod suitable for liquid-driven compressor and mounting method thereof - Google Patents
Reducing piston rod suitable for liquid-driven compressor and mounting method thereof Download PDFInfo
- Publication number
- CN117189545A CN117189545A CN202311476318.2A CN202311476318A CN117189545A CN 117189545 A CN117189545 A CN 117189545A CN 202311476318 A CN202311476318 A CN 202311476318A CN 117189545 A CN117189545 A CN 117189545A
- Authority
- CN
- China
- Prior art keywords
- end fixed
- fixed thread
- piston
- hydraulic
- primary
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000006835 compression Effects 0.000 claims description 142
- 238000007906 compression Methods 0.000 claims description 142
- 229910052739 hydrogen Inorganic materials 0.000 claims description 100
- 239000001257 hydrogen Substances 0.000 claims description 100
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 77
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 23
- 238000011900 installation process Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract description 9
- 238000003466 welding Methods 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 238000005984 hydrogenation reaction Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Landscapes
- Compressor (AREA)
Abstract
The invention discloses a variable-diameter piston rod suitable for a liquid-driven compressor and an installation method thereof. The invention also specifically discloses a specific installation method of the variable-diameter piston rod suitable for the liquid-driven compressor. The variable-diameter piston rod suitable for the liquid-driven compressor can simultaneously and effectively meet the requirements of assembling the piston rod and a hydraulic cylinder and fixing the piston, and has the advantages of high integrity and reliability, no welding and the like.
Description
Technical Field
The invention belongs to the technical field of hydrogen energy liquid-driven compressors, and particularly relates to a variable-diameter piston rod suitable for a liquid-driven compressor and an installation method thereof.
Background
Because the hydrogen energy source can help the completion of the carbon peak, many hydrogen stations implement the landing and assist the development of hydrogen fuel cell automobiles. The core component of the hydrogenation station, namely the compressor, is the key place of the working efficiency and the service life of the hydrogenation station, and the hydraulic drive compressor is not required to be unloaded when being started, so that the hydraulic drive compressor can be restarted frequently, the energy is saved, the working efficiency of the compressor is greatly improved, in addition, the hydraulic drive compressor has small working vibration and noise, and the service life of the compressor is prolonged. The piston rod of the compressor bears the actions of the hydraulic cylinder cover and the fixed multiple pistons, and the effect of compressing hydrogen is achieved by driving the piston rod to reciprocate through hydraulic pressure. The structure of the piston rod affects the overall size and the use effect of the whole compressor, so that a reasonable piston rod design is particularly important.
In the technical solution disclosed in patent document CN108591008A, the piston rod is integrally connected with the piston, the compression cylinder and the like, and the contact connection between the piston and the end face of the piston rod is simply described, wherein the rod diameters of the described piston rod are consistent, and the detailed fixing manner between the piston and the piston rod is not specifically disclosed; how the piston rod is mounted together with the piston and other parts is not explicitly described; the innovation of the above patent document is also focused on the design innovation of the whole compressor system and teaches the working process of the liquid-driven compressor. Based on the design, the invention designs the diameter-variable piston rod which is reasonable in design and high in reliability and is suitable for the liquid-driven compressor and the mounting method of the diameter-variable piston rod.
Disclosure of Invention
The invention solves the technical problem of providing a diameter-variable piston rod which is reasonable in design and high in reliability and is suitable for a liquid-driven compressor and an installation method thereof.
The invention adopts the following technical scheme for solving the technical problems, and is characterized by comprising a piston rod body, a first-stage hydrogen compression area arranged at the left end of the piston rod body, a hydraulic area arranged in the middle of the piston rod body and a second-stage hydrogen compression area arranged at the right end of the piston rod body, wherein the first-stage hydrogen compression area is provided with a first-stage hydrogen compression piston, the first-stage hydrogen compression area is movably arranged in a first-stage hydrogen pressurizing cylinder of the liquid-driven compressor after being provided with the first-stage hydrogen compression piston, the hydraulic area is provided with a hydraulic piston, the hydraulic area is movably arranged in a hydraulic cylinder of the liquid-driven compressor after being provided with the hydraulic piston, and the second-stage hydrogen compression area is provided with a second-stage hydrogen compression piston, and the second-stage hydrogen compression area is movably arranged in a second-stage hydrogen pressurizing cylinder of the liquid-driven compressor after being provided with the second-stage hydrogen compression piston;
the primary hydrogen compression region is sequentially provided with a primary front end fixed thread sub-region, a primary compression piston sub-region and a primary rear end fixed thread sub-region from left to right, wherein the rod diameters of the piston rods of the primary front end fixed thread sub-region and the primary compression piston sub-region are the same, and the rod diameter of the piston rod of the primary rear end fixed thread sub-region is larger than that of the piston rod of the primary compression piston sub-region;
the hydraulic pressure area is sequentially provided with a hydraulic front end fixed thread subarea, a hydraulic piston subarea and a hydraulic rear end fixed thread subarea from left to right, wherein the piston rod diameters of the hydraulic front end fixed thread subarea and the hydraulic piston subarea are the same, the piston rod diameter of the hydraulic front end fixed thread subarea is larger than the piston rod diameter of the primary rear end fixed thread subarea in the primary hydrogen compression area, and the piston rod diameter of the hydraulic rear end fixed thread subarea is larger than the piston rod diameter of the hydraulic front end fixed thread subarea;
the secondary hydrogen compression area is sequentially provided with a secondary front end fixed thread sub-area, a secondary compression piston sub-area and a secondary rear end fixed thread sub-area from left to right, wherein the rod diameters of the piston rods of the secondary compression piston sub-area and the secondary rear end fixed thread sub-area are the same, the rod diameter of the piston rod of the secondary front end fixed thread sub-area is larger than that of the piston rod of the secondary compression piston sub-area, and the rod diameters of the piston rods of the hydraulic rear end fixed thread sub-areas in the secondary front end fixed thread sub-area and the hydraulic area are the same.
Further defined, the piston rod radius difference value of the primary rear end fixed thread sub-region and the primary compression piston sub-region in the primary hydrogen compression region is larger than the thread depth of the primary rear end fixed thread sub-region.
Further defined, the piston rod radius difference value of the hydraulic rear end fixed thread subarea and the hydraulic front end fixed thread subarea in the hydraulic area is larger than the thread depth of the hydraulic rear end fixed thread subarea.
Further defined, the piston rod radius difference value of the hydraulic front end fixed thread subarea in the hydraulic area and the primary rear end fixed thread subarea in the primary hydrogen compression area is larger than the thread depth of the primary rear end fixed thread subarea.
Further defined, the piston rod radius difference value of the secondary front end fixed thread subarea and the secondary compression piston subarea in the secondary hydrogen compression area is larger than the thread depth of the secondary front end fixed thread subarea.
Further limited, the first-stage hydrogen compression piston is sleeved in the sub-region of the first-stage compression piston, and nuts for locking the first-stage hydrogen compression piston are respectively arranged in the first-stage front-end fixed thread sub-region and the first-stage rear-end fixed thread sub-region.
Further limited, the hydraulic piston subarea is sleeved with a hydraulic piston, and nuts for locking the hydraulic piston are respectively arranged on the hydraulic front end fixed thread subarea and the hydraulic rear end fixed thread subarea.
Further limited, the secondary hydrogen compression piston is sleeved and installed in the secondary compression piston subregion domain, and nuts used for locking the secondary hydrogen compression piston are respectively installed in the secondary front end fixed thread subregion and the secondary rear end fixed thread subregion.
The method for installing the variable-diameter piston rod suitable for the liquid-driven compressor is characterized by comprising the following specific installation processes:
step S1, enabling a hexagonal nut matched with a hydraulic rear end fixed thread subarea to pass through a primary hydrogen compression area, a hydraulic front end fixed thread subarea and a hydraulic piston subarea, and installing the hexagonal nut on the hydraulic rear end fixed thread subarea;
s2, a hydraulic piston penetrates through the primary hydrogen compression area and the hydraulic front end fixing thread sub-area and is arranged on the hydraulic piston sub-area;
s3, enabling a hexagonal nut matched with the hydraulic front end fixed thread subarea to pass through the primary hydrogen compression area, and installing the hexagonal nut on the hydraulic front end fixed thread subarea for locking the hydraulic piston;
s4, enabling a primary hydrogen compression area of the variable-diameter piston rod to pass through a primary hydraulic cylinder cover;
s5, enabling a hexagonal nut matched with the primary rear end fixed thread subarea to pass through the primary front end fixed thread subarea and the primary compression piston subarea, and installing the hexagonal nut on the primary rear end fixed thread subarea;
s6, enabling the primary hydrogen compression piston to pass through the primary front end thread sub-area and be arranged on the primary compression piston sub-area;
s7, installing a hexagonal nut matched with the primary front end fixed thread subarea on the primary front end fixed thread subarea for locking the primary hydrogen compression piston;
step S8, enabling the secondary hydrogen compression area of the variable-diameter piston rod to pass through a secondary hydraulic cylinder cover;
s9, enabling a hexagonal nut matched with the secondary front end fixed thread subarea to pass through the secondary rear end fixed thread subarea and the secondary compression piston subarea, and installing the hexagonal nut on the secondary front end fixed thread subarea;
step S10, a secondary hydrogen compression piston passes through a secondary rear end fixed thread sub-area and is arranged on the secondary compression piston sub-area;
and S11, installing a hexagonal nut matched with the secondary rear end fixed thread subarea on the secondary rear end fixed thread subarea for locking the secondary hydrogen compression piston.
According to the invention, the diameters of pistons of different compression stages are different due to different compression cylinder diameters of the two-stage compressor, the diameters of the two-stage pistons are minimum due to the minimum cylinder diameter of the two-stage compression cylinder, the hole positions of the piston passing through the piston rod are the highest and the largest due to the highest pressure, the piston is required to be provided with a piston ring groove, the piston ring is easy to lose efficacy due to the fact that the distance between the lowest point of the piston groove and the hole position of the piston rod is too small, in order to solve the problem, a reducing piston rod is provided, the distance between the lowest point of the piston groove and the hole position of the piston rod is increased, the risk of losing efficacy of the piston ring is reduced, and the piston rod is prevented from being deformed by stress due to the fact that nuts are simultaneously used on two sides of the piston and the convenience of dismounting is achieved; meanwhile, the piston rods are closely connected with the pistons, the cylinder covers and the compression cylinders of all stages as well as the pistons, the cylinder covers and the compression cylinders of the hydraulic cylinders, if the whole set of compressor cannot be successfully installed without the installation sequence recorded by the invention, the installation problems of the fixed pistons, the piston rods, the cylinder covers and the compression cylinders are effectively solved by combining the installation sequence through a reducing technology means, and meanwhile, the later maintenance and disassembly work is facilitated; because the pressure in each stage of compression cylinder is different, the external force received by the corresponding piston rod in the reciprocating motion is different, the rod diameter of the piston rod in the relatively low-pressure one-stage compression cylinder can be smaller, the rod diameter of the piston rod in the relatively high-pressure two-stage compression cylinder is larger, the reasonable matching with the working condition is realized, the application scene of the piston rod can be furthest exerted, and the overall quality of the compressor is further reduced.
The invention has no similarity with the technical proposal described in the patent document CN108591008A, in particular to the change of the rod diameter of the piston rod, the invention adopts a variable-diameter piston rod, and has the advantages that: the distance between the lowest point of the piston groove and the hole site of the piston rod is increased, and the risk of failure of the piston ring is reduced; the working conditions of the compressor are combined to enable the rod diameters of the piston rods to be inconsistent, so that reasonable working condition matching is guaranteed, the application scene of the piston rods is brought into full play, and the quality of the piston rods can be reduced compared with the situation that the rod diameters of the piston rods are unchanged; the method combines the characteristics of compressor installation, and provides a specific installation sequence and an installation process according to the characteristics of the variable-diameter piston rod, so that the installation process is more convenient and quick.
Compared with the prior art, the invention has the following advantages and beneficial effects: the variable-diameter piston rod suitable for the liquid-driven compressor can simultaneously and effectively meet the requirements of assembling the piston rod and a hydraulic cylinder and fixing the piston, and has the advantages of high integrity and reliability, no welding and the like.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is an enlarged view of a portion of FIG. 1 at 2;
FIG. 3 is an enlarged view of a portion of FIG. 1 at 3;
FIG. 4 is an enlarged view of a portion of FIG. 1 at 4;
fig. 5 is a use state diagram of the present invention.
In the figure: the device comprises a 1-piston rod body, a 2-primary hydrogen compression area, a 3-hydraulic area, a 4-secondary hydrogen compression area, a 5-primary hydrogen compression piston, a 6-primary hydraulic cylinder cover, a 7-hydraulic piston, an 8-secondary hydraulic cylinder cover and a 9-secondary hydrogen compression piston; the method comprises the steps of 21-primary front end fixed thread subareas, 22-primary compression piston subareas, 23-primary rear end fixed thread subareas, 31-hydraulic front end fixed thread subareas, 32-hydraulic piston subareas and 33-hydraulic rear end fixed thread subareas; the front end of the second stage is fixed with a thread subarea, the second stage is compressed with a piston subarea, and the rear end of the second stage is fixed with a thread subarea.
Detailed Description
The specific technical scheme of the invention is described in detail by referring to the drawings, as shown in fig. 1-5, a reducing piston rod suitable for a hydraulic compressor comprises a piston rod body 1, a first-stage hydrogen compression region 2 arranged at the left end of the piston rod body 1, a hydraulic region 3 arranged in the middle of the piston rod body 1 and a second-stage hydrogen compression region 4 arranged at the right end of the piston rod body 1, wherein the first-stage hydrogen compression region 2 is provided with a first-stage hydrogen compression piston 5, the first-stage hydrogen compression region 2 is movably arranged in a first-stage hydrogen pressurizing cylinder of the hydraulic compressor after being provided with the first-stage hydrogen compression piston 5, the hydraulic region 3 is provided with a hydraulic piston 7, the hydraulic region 3 is movably arranged in the hydraulic cylinder of the hydraulic compressor after being provided with the hydraulic piston 7, the second-stage hydrogen compression region 4 is provided with a second-stage hydrogen compression piston 9, and the second-stage hydrogen compression region 4 is movably arranged in a second-stage hydrogen pressurizing cylinder of the hydraulic compressor after being provided with the second-stage hydrogen compression piston 9;
the primary hydrogen compression region 2 is sequentially provided with a primary front end fixed thread sub-region 21, a primary compression piston sub-region 22 and a primary rear end fixed thread sub-region 23 from left to right, wherein the rod diameters of the piston rods of the primary front end fixed thread sub-region 21 and the primary compression piston sub-region 22 are the same, and the rod diameter of the piston rod of the primary rear end fixed thread sub-region 23 is larger than that of the piston rod of the primary compression piston sub-region 22;
the hydraulic area 3 is sequentially provided with a hydraulic front end fixed thread subarea 31, a hydraulic piston subarea 32 and a hydraulic rear end fixed thread subarea 33 from left to right, wherein the rod diameters of the hydraulic front end fixed thread subarea 31 and the hydraulic piston subarea 32 are the same, the rod diameter of the rod of the hydraulic front end fixed thread subarea 31 is larger than the rod diameter of the rod of the primary rear end fixed thread subarea 23 in the primary hydrogen compression area 2, and the rod diameter of the rod of the hydraulic rear end fixed thread subarea 33 is larger than the rod diameter of the rod of the hydraulic front end fixed thread subarea 31;
the secondary hydrogen compression area 4 is sequentially provided with a secondary front end fixed thread subarea 41, a secondary compression piston subarea 42 and a secondary rear end fixed thread subarea 43 from left to right, wherein the rod diameters of the secondary compression piston subarea 42 and the secondary rear end fixed thread subarea 43 are the same, the rod diameter of the rod of the secondary front end fixed thread subarea 41 is larger than that of the rod of the secondary compression piston subarea 42, and the rod diameters of the rod of the hydraulic rear end fixed thread subarea 33 in the secondary front end fixed thread subarea 41 and the hydraulic area 3 are the same.
In the primary hydrogen compression region 2, the diameter difference value of piston rods of a primary rear end fixed thread sub-region 23 and a primary compression piston sub-region 22 is larger than the thread depth of the primary rear end fixed thread sub-region 23; the piston rod radius difference value of the hydraulic rear end fixed thread subarea 33 and the hydraulic front end fixed thread subarea 31 in the hydraulic area 3 is larger than the thread depth of the hydraulic rear end fixed thread subarea 33; the piston rod radius difference value of the hydraulic front end fixed thread subarea 31 in the hydraulic area 3 and the primary rear end fixed thread subarea 23 in the primary hydrogen compression area 2 is larger than the thread depth of the primary rear end fixed thread subarea 23; the piston rod radius difference value of the secondary front end fixed thread subarea 41 and the secondary compression piston subarea 42 in the secondary hydrogen compression area 4 is larger than the thread depth of the secondary front end fixed thread subarea 41.
The primary hydrogen compression piston 5 is sleeved on the primary compression piston subregion 22, and nuts for locking the primary hydrogen compression piston 5 are respectively arranged on the primary front end fixed thread subregion 21 and the primary rear end fixed thread subregion 23; the hydraulic piston subarea 32 is sleeved with a hydraulic piston 7, and nuts for locking the hydraulic piston 7 are respectively arranged on the hydraulic front end fixed thread subarea 31 and the hydraulic rear end fixed thread subarea 33; the secondary hydrogen compression piston 9 is sleeved on the secondary compression piston subregion 42, and nuts for locking the secondary hydrogen compression piston 9 are respectively arranged on the secondary front end fixed thread subregion 41 and the secondary rear end fixed thread subregion 43.
The specific installation process of the invention is as follows: step S1, a hexagonal nut matched with a hydraulic rear end fixed thread subarea 33 passes through the primary hydrogen compression area 2, the hydraulic front end fixed thread subarea 31 and a hydraulic piston subarea 32, and is arranged on the hydraulic rear end fixed thread subarea 33; step S2, the hydraulic piston 7 passes through the primary hydrogen compression area 2 and the hydraulic front end fixing thread subarea 31 and is arranged on the hydraulic piston subarea 32; step S3, a hexagonal nut matched with the hydraulic front end fixing thread subarea 31 passes through the primary hydrogen compression area 2 and is arranged on the hydraulic front end fixing thread subarea 31 for locking the hydraulic piston 7; step S4, enabling the primary hydrogen compression area 2 of the variable-diameter piston rod to pass through the primary hydraulic cylinder cover 6; s5, enabling a hexagonal nut matched with the primary rear end fixed thread subarea 23 to pass through the primary front end fixed thread subarea 21 and the primary compression piston subarea 22, and installing the hexagonal nut on the primary rear end fixed thread subarea 23; step S6, the primary hydrogen compression piston 5 passes through the primary front end fixed thread sub-area 21 and is arranged on the primary compression piston sub-area 22; step S7, a hexagonal nut matched with the primary front end fixed thread subarea 21 is arranged on the primary front end fixed thread subarea 21 and used for locking the primary hydrogen compression piston 5; step S8, the secondary hydrogen compression area 4 of the variable-diameter piston rod passes through the secondary hydraulic cylinder cover 8; step S9, enabling a hexagonal nut matched with the secondary front end fixed thread subarea 41 to pass through the secondary rear end fixed thread subarea 43 and the secondary compression piston subarea 42, and installing the hexagonal nut on the secondary front end fixed thread subarea 41; step S10, a secondary hydrogen compression piston 9 passes through a secondary rear end fixed thread subregion and is arranged on a secondary compression piston subregion 42; and S11, installing a hexagonal nut matched with the secondary rear end fixing thread subarea 43 on the secondary rear end fixing thread subarea 43 for locking the secondary hydrogen compression piston 9. The reducing piston rod installed in the mode can effectively meet the requirements of assembling the piston rod and the hydraulic cylinder and fixing the piston.
While the basic principles of the invention have been shown and described, there are various changes and modifications to the invention, which fall within the scope of the invention as hereinafter claimed, without departing from the spirit and scope of the invention.
Claims (9)
1. The reducing piston rod is characterized by comprising a piston rod body, a first-stage hydrogen compression area arranged at the left end of the piston rod body, a hydraulic area arranged in the middle of the piston rod body and a second-stage hydrogen compression area arranged at the right end of the piston rod body, wherein the first-stage hydrogen compression area is provided with a first-stage hydrogen compression piston, the first-stage hydrogen compression area is provided with a first-stage hydrogen compression piston and then moves in a first-stage hydrogen pressurizing cylinder of the liquid-driven compressor, the hydraulic area is provided with a hydraulic piston and then moves in a hydraulic cylinder of the liquid-driven compressor, and the second-stage hydrogen compression area is provided with a second-stage hydrogen compression piston and then moves in a second-stage hydrogen pressurizing cylinder of the liquid-driven compressor;
the primary hydrogen compression region is sequentially provided with a primary front end fixed thread sub-region, a primary compression piston sub-region and a primary rear end fixed thread sub-region from left to right, wherein the rod diameters of the piston rods of the primary front end fixed thread sub-region and the primary compression piston sub-region are the same, and the rod diameter of the piston rod of the primary rear end fixed thread sub-region is larger than that of the piston rod of the primary compression piston sub-region;
the hydraulic pressure area is sequentially provided with a hydraulic front end fixed thread subarea, a hydraulic piston subarea and a hydraulic rear end fixed thread subarea from left to right, wherein the piston rod diameters of the hydraulic front end fixed thread subarea and the hydraulic piston subarea are the same, the piston rod diameter of the hydraulic front end fixed thread subarea is larger than the piston rod diameter of the primary rear end fixed thread subarea in the primary hydrogen compression area, and the piston rod diameter of the hydraulic rear end fixed thread subarea is larger than the piston rod diameter of the hydraulic front end fixed thread subarea;
the secondary hydrogen compression area is sequentially provided with a secondary front end fixed thread sub-area, a secondary compression piston sub-area and a secondary rear end fixed thread sub-area from left to right, wherein the rod diameters of the piston rods of the secondary compression piston sub-area and the secondary rear end fixed thread sub-area are the same, the rod diameter of the piston rod of the secondary front end fixed thread sub-area is larger than that of the piston rod of the secondary compression piston sub-area, and the rod diameters of the piston rods of the hydraulic rear end fixed thread sub-areas in the secondary front end fixed thread sub-area and the hydraulic area are the same.
2. The reducing piston rod adapted for use in a liquid-driven compressor as set forth in claim 1, wherein: and the piston rod radius difference value of the primary rear end fixed thread sub-region and the primary compression piston sub-region in the primary hydrogen compression region is larger than the thread depth of the primary rear end fixed thread sub-region.
3. The reducing piston rod adapted for use in a liquid-driven compressor as set forth in claim 1, wherein: and the piston rod radius falling difference value of the hydraulic rear end fixed thread subarea and the hydraulic front end fixed thread subarea in the hydraulic area is larger than the thread depth of the hydraulic rear end fixed thread subarea.
4. The reducing piston rod adapted for use in a liquid-driven compressor as set forth in claim 1, wherein: and the diameter difference value of the piston rod of the hydraulic front end fixed thread sub-region and the piston rod of the primary rear end fixed thread sub-region in the primary hydrogen compression region in the hydraulic region is larger than the thread depth of the primary rear end fixed thread sub-region.
5. The reducing piston rod adapted for use in a liquid-driven compressor as set forth in claim 1, wherein: and the piston rod radius difference value of the secondary front end fixed thread sub-region and the secondary compression piston sub-region in the secondary hydrogen compression region is larger than the thread depth of the secondary front end fixed thread sub-region.
6. The reducing piston rod adapted for use in a liquid-driven compressor as set forth in claim 1, wherein: the primary hydrogen compression piston is sleeved in the primary compression piston subregion, and nuts used for locking the primary hydrogen compression piston are respectively arranged in the primary front end fixed thread subregion and the primary rear end fixed thread subregion.
7. The reducing piston rod adapted for use in a liquid-driven compressor as set forth in claim 1, wherein: the hydraulic piston subareas are sleeved with hydraulic pistons, and nuts for locking the hydraulic pistons are respectively arranged on the hydraulic front end fixed thread subareas and the hydraulic rear end fixed thread subareas.
8. The reducing piston rod adapted for use in a liquid-driven compressor as set forth in claim 1, wherein: the secondary hydrogen compression piston is sleeved in the secondary compression piston subregion, and nuts for locking the secondary hydrogen compression piston are respectively arranged in the secondary front end fixed thread subregion and the secondary rear end fixed thread subregion.
9. A method for installing a variable diameter piston rod suitable for a liquid-driven compressor according to any one of claims 1-8, characterized in that the specific installation process is as follows:
step S1, enabling a hexagonal nut matched with a hydraulic rear end fixed thread subarea to pass through a primary hydrogen compression area, a hydraulic front end fixed thread subarea and a hydraulic piston subarea, and installing the hexagonal nut on the hydraulic rear end fixed thread subarea;
s2, a hydraulic piston penetrates through the primary hydrogen compression area and the hydraulic front end fixing thread sub-area and is arranged on the hydraulic piston sub-area;
s3, enabling a hexagonal nut matched with the hydraulic front end fixed thread subarea to pass through the primary hydrogen compression area, and installing the hexagonal nut on the hydraulic front end fixed thread subarea for locking the hydraulic piston;
s4, enabling a primary hydrogen compression area of the variable-diameter piston rod to pass through a primary hydraulic cylinder cover;
s5, enabling a hexagonal nut matched with the primary rear end fixed thread subarea to pass through the primary front end fixed thread subarea and the primary compression piston subarea, and installing the hexagonal nut on the primary rear end fixed thread subarea;
s6, enabling the primary hydrogen compression piston to pass through the primary front end thread sub-area and be arranged on the primary compression piston sub-area;
s7, installing a hexagonal nut matched with the primary front end fixed thread subarea on the primary front end fixed thread subarea for locking the primary hydrogen compression piston;
step S8, enabling the secondary hydrogen compression area of the variable-diameter piston rod to pass through a secondary hydraulic cylinder cover;
s9, enabling a hexagonal nut matched with the secondary front end fixed thread subarea to pass through the secondary rear end fixed thread subarea and the secondary compression piston subarea, and installing the hexagonal nut on the secondary front end fixed thread subarea;
step S10, a secondary hydrogen compression piston passes through a secondary rear end fixed thread sub-area and is arranged on the secondary compression piston sub-area;
and S11, installing a hexagonal nut matched with the secondary rear end fixed thread subarea on the secondary rear end fixed thread subarea for locking the secondary hydrogen compression piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311476318.2A CN117189545A (en) | 2023-11-08 | 2023-11-08 | Reducing piston rod suitable for liquid-driven compressor and mounting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311476318.2A CN117189545A (en) | 2023-11-08 | 2023-11-08 | Reducing piston rod suitable for liquid-driven compressor and mounting method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117189545A true CN117189545A (en) | 2023-12-08 |
Family
ID=88998316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311476318.2A Pending CN117189545A (en) | 2023-11-08 | 2023-11-08 | Reducing piston rod suitable for liquid-driven compressor and mounting method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117189545A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000283117A (en) * | 1999-03-29 | 2000-10-13 | Hitachi Constr Mach Co Ltd | Hydraulic cylinder |
| JP2005172190A (en) * | 2003-12-15 | 2005-06-30 | Shin Caterpillar Mitsubishi Ltd | Fluid pressure cylinder device and piston fastening and fixing structure to be used for the same |
| WO2008131430A1 (en) * | 2007-04-23 | 2008-10-30 | National Oilwell Varco, L.P. | A reciprocating pump having a piston assembly |
| KR100941373B1 (en) * | 2009-09-11 | 2010-02-05 | 티엠디이엔지(주) | Hydraulic actuator and maintenance method for use in generator equipment |
| CN203686115U (en) * | 2014-01-22 | 2014-07-02 | 甘仲光 | Pneumatic tool inner main piston reinforcing structure |
| CN104595151A (en) * | 2014-12-09 | 2015-05-06 | 天津市海雅实业有限公司 | Hydraulic reciprocating compression air pump with quantified and variable pressurization functions |
| CN105202182A (en) * | 2015-09-21 | 2015-12-30 | 济南大学 | Composite piston device with high temperature resistance, cold resistance and wear resistance for hydraulic cylinder |
| CN109653985A (en) * | 2018-12-13 | 2019-04-19 | 武汉齐达康环保科技股份有限公司 | A kind of hydrogen gas compressor host and compression method |
| CN210623001U (en) * | 2019-06-20 | 2020-05-26 | 徐州市全球通精密钢管有限公司 | Oil cylinder type bidirectional oil-water conversion high-pressure water generating device |
| CN213064139U (en) * | 2020-09-15 | 2021-04-27 | 武汉齐达康环保科技股份有限公司 | Piston locking structure of double-acting hydraulic cylinder of hydraulic compressor |
| CN215634086U (en) * | 2021-06-02 | 2022-01-25 | 武汉齐达康环保科技股份有限公司 | Hydrogen hydraulic cylinder convenient to adjust compression stroke |
| CN114382674A (en) * | 2022-01-20 | 2022-04-22 | 博山水泵制造厂 | Hydraulic drive hydrogen compressor |
| CN219176508U (en) * | 2022-12-12 | 2023-06-13 | 重庆耐德能源装备集成有限公司 | Hydraulic driving piston type hydrogen compressor |
-
2023
- 2023-11-08 CN CN202311476318.2A patent/CN117189545A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000283117A (en) * | 1999-03-29 | 2000-10-13 | Hitachi Constr Mach Co Ltd | Hydraulic cylinder |
| JP2005172190A (en) * | 2003-12-15 | 2005-06-30 | Shin Caterpillar Mitsubishi Ltd | Fluid pressure cylinder device and piston fastening and fixing structure to be used for the same |
| WO2008131430A1 (en) * | 2007-04-23 | 2008-10-30 | National Oilwell Varco, L.P. | A reciprocating pump having a piston assembly |
| KR100941373B1 (en) * | 2009-09-11 | 2010-02-05 | 티엠디이엔지(주) | Hydraulic actuator and maintenance method for use in generator equipment |
| CN203686115U (en) * | 2014-01-22 | 2014-07-02 | 甘仲光 | Pneumatic tool inner main piston reinforcing structure |
| CN104595151A (en) * | 2014-12-09 | 2015-05-06 | 天津市海雅实业有限公司 | Hydraulic reciprocating compression air pump with quantified and variable pressurization functions |
| CN105202182A (en) * | 2015-09-21 | 2015-12-30 | 济南大学 | Composite piston device with high temperature resistance, cold resistance and wear resistance for hydraulic cylinder |
| CN109653985A (en) * | 2018-12-13 | 2019-04-19 | 武汉齐达康环保科技股份有限公司 | A kind of hydrogen gas compressor host and compression method |
| CN210623001U (en) * | 2019-06-20 | 2020-05-26 | 徐州市全球通精密钢管有限公司 | Oil cylinder type bidirectional oil-water conversion high-pressure water generating device |
| CN213064139U (en) * | 2020-09-15 | 2021-04-27 | 武汉齐达康环保科技股份有限公司 | Piston locking structure of double-acting hydraulic cylinder of hydraulic compressor |
| CN215634086U (en) * | 2021-06-02 | 2022-01-25 | 武汉齐达康环保科技股份有限公司 | Hydrogen hydraulic cylinder convenient to adjust compression stroke |
| CN114382674A (en) * | 2022-01-20 | 2022-04-22 | 博山水泵制造厂 | Hydraulic drive hydrogen compressor |
| CN219176508U (en) * | 2022-12-12 | 2023-06-13 | 重庆耐德能源装备集成有限公司 | Hydraulic driving piston type hydrogen compressor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN117189545A (en) | Reducing piston rod suitable for liquid-driven compressor and mounting method thereof | |
| CN103182440A (en) | Automobile nut plate part die | |
| CN106964747A (en) | Press diel | |
| CN215566444U (en) | Rod-plug separation structure and hydrogen compressor thereof | |
| CN208303693U (en) | A kind of tubing seal cap rises riveting assembling device | |
| CN104786037A (en) | Embedding method for end-gap-free L-shaped nonmetal piston ring and piston and none-clearance structure forming compressor | |
| CN112140054B (en) | Portable and quick dismounting tool for engine cam bearing bush | |
| CN213775870U (en) | Oil pressure pneumatic pump | |
| CN211009348U (en) | Guide rod ultrathin cylinder structure | |
| CN213259257U (en) | Portable and rapid engine cam bearing bush dismounting tool | |
| CN112510929B (en) | Blind cavity structure interference fit rotor cold-assembling elastic guide device for assembly | |
| CN111421060B (en) | Punching compound die and punching machine | |
| CN201351599Y (en) | Piston assembly adopting complex retainer ring | |
| CN201568190U (en) | High power diesel starting valve of combination valve core | |
| CN218325525U (en) | Stepping cylinder | |
| CN100455856C (en) | Automatically compensating clamping sealing device of glasses valve | |
| CN112628108A (en) | Double-cylinder core of vehicle-mounted inflator pump | |
| CN217712890U (en) | Liquid-driven diaphragm compressor | |
| CN113324053B (en) | Gear shifting booster | |
| CN221033006U (en) | Piston device of two-stage compression high-pressure inflator | |
| CN2566013Y (en) | Diaphragm spring brake air chamber | |
| CN214146423U (en) | Compressor damping device for movable air conditioner | |
| CN215318327U (en) | Special assembly fixture for positioning pin of plate parts | |
| CN211116917U (en) | Novel jacking oil cylinder | |
| CN212479760U (en) | Gas-liquid combined driving mechanism of corner connector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |