CN112539150A - Mechanical piston compressor for hydrogenation station - Google Patents

Mechanical piston compressor for hydrogenation station Download PDF

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Publication number
CN112539150A
CN112539150A CN202011358156.9A CN202011358156A CN112539150A CN 112539150 A CN112539150 A CN 112539150A CN 202011358156 A CN202011358156 A CN 202011358156A CN 112539150 A CN112539150 A CN 112539150A
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CN
China
Prior art keywords
piston
cylinder
crankshaft
connecting rod
guide
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
Application number
CN202011358156.9A
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Chinese (zh)
Inventor
张顺
田红平
信石玉
许剑
李文权
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sinopec Oilfield Equipment Corp
Research Institute of Sinopec Oilfield Equipment Co Ltd
Original Assignee
Sinopec Oilfield Equipment Corp
Research Institute of Sinopec Oilfield Equipment Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sinopec Oilfield Equipment Corp, Research Institute of Sinopec Oilfield Equipment Co Ltd filed Critical Sinopec Oilfield Equipment Corp
Priority to CN202011358156.9A priority Critical patent/CN112539150A/en
Publication of CN112539150A publication Critical patent/CN112539150A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/005Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders with two cylinders
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0005Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0094Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 crankshaft
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/06Cooling; Heating; Prevention of freezing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/122Cylinder block

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)

Abstract

The invention discloses a mechanical piston compressor for a hydrogenation station, which comprises: the air cylinder is vertically arranged and provided with at least two parallel cylinder bodies, a piston rod is arranged in each cylinder body, and a piston is arranged on each piston rod; a housing having a hollow interior; the guide mechanism is arranged in the shell, a plurality of guide channels are arranged on the guide mechanism, each guide channel corresponds to one cylinder body, and the piston rod of the cylinder body can pass through the guide channels when moving up and down to carry out limiting guide and sealing on the piston rod; the invention solves the technical difficulties of oil-free lubrication and dynamic sealing in high-pressure and hydrogen environment, and ensures the safe and reliable long-time operation of the compressor in the hydrogenation station.

Description

Mechanical piston compressor for hydrogenation station
Technical Field
The invention relates to the field of mechanical piston compressors for a hydrogenation station. More particularly, the invention relates to a mechanical piston compressor for a hydrogenation station, which can meet the requirements of high pressure and hydrogen environment, has no oil lubrication and good sealing.
Background
The hydrogen station is a key hub for connecting hydrogen production at the upstream of the hydrogen energy industry and hydrogen for vehicles with downstream fuel cells, and the hydrogen compressor is the core equipment of the hydrogen station. In order to ensure the purity and the compression discharge capacity of hydrogen, the hydrogen compressors adopted by the domestic hydrogenation stations at present comprise metal diaphragm compressors and hydraulic piston compressors.
The traditional mechanical piston type compressor cannot meet the requirements in the use scene of a hydrogenation station in a high-pressure and hydrogen environment because the technical difficulties of oil-free lubrication, dynamic sealing and the like cannot be overcome, and has no application in China.
Disclosure of Invention
To achieve these objects and other advantages and in accordance with the purpose of the invention, a mechanical piston compressor for a hydrogen station is provided, comprising:
the air cylinder is vertically arranged and provided with at least two parallel cylinder bodies, a piston rod is arranged in each cylinder body, and a piston is arranged on each piston rod;
a housing having a hollow interior; and
the guide mechanism is arranged in the shell, a plurality of guide channels are arranged on the guide mechanism, each guide channel corresponds to one cylinder body, and the piston rod of the cylinder body can pass through the guide channels when moving up and down to carry out limiting guide and sealing on the piston rod;
each piston rod penetrates through the corresponding guide channel on the guide mechanism and is connected with a crankshaft connecting rod, the crankshaft connecting rod moves under the driving of a power mechanism, and the piston rods move up and down along with the movement of the crankshaft connecting rod so as to drive the pistons to move up and down;
wherein the guide mechanism and the crankshaft connecting rod are both arranged in the shell.
According to a preferred embodiment of the present invention, in the mechanical piston compressor for a hydrogen station, the size of the piston in all the cylinders of the cylinder is not completely the same.
According to a preferred embodiment of the present invention, in the mechanical piston compressor for a hydrogen station, the piston is sleeved with a piston ring.
According to a preferred embodiment of the present invention, in the mechanical piston compressor for a hydrogen refueling station, the cylinder has an exhaust port, and a hydrogen detector is disposed near the exhaust port to detect whether there is a hydrogen leak.
According to a preferred embodiment of the present invention, in the mechanical piston compressor for a hydrogen refueling station, the crankshaft connecting rod includes a crankshaft and a connecting rod connected to each other, each of the piston rods sequentially passes through the corresponding guide channel on the guide mechanism to be connected to the connecting rod, one end of the connecting rod away from the piston rod is connected to the crankshaft, the crankshaft is driven by the power mechanism to rotate, and the connecting rod moves up and down along with the rotation of the crankshaft, so as to drive the piston rod to move up and down.
According to a preferred embodiment of the present invention, in the mechanical piston compressor for a hydrogen station, the internal space of the housing is divided into a plurality of sub-spaces, and the sub-spaces are respectively in one-to-one correspondence with the plurality of cylinders, and one guide mechanism is disposed in each sub-space of the housing through a mounting plate.
According to a preferred embodiment of the present invention, in the mechanical piston compressor for a hydrogen station, the crankshaft is a non-homogeneous crankshaft.
According to a preferred embodiment of the present invention, in the mechanical piston compressor for a hydrogen station, a cooling jacket is circumferentially disposed on an outer portion of the cylinder, and the cooling jacket is spaced from a side wall of the cylinder by a certain distance to form a cooling space for a cooling fluid to flow.
According to a preferred embodiment of the present invention, in the mechanical piston compressor for a hydrogen station, the cylinder has an exhaust port, and a temperature detector is disposed near the exhaust port to detect the temperature of the exhaust gas.
The invention at least comprises the following beneficial effects:
in the mechanical piston compressor for the hydrogen filling station in one embodiment of the invention, firstly, a piston ring is sleeved on the piston, so that the sealing performance of the whole compressor is further improved, and no leakage of hydrogen is ensured. The air cylinder is vertically arranged, a series of problems caused by the fact that the air cylinder is horizontal can be avoided, for example, eccentric wear of a piston ring can be avoided, the air cylinder is internally provided with a plurality of cylinder bodies which are arranged in parallel, multi-stage compression can be achieved, and a guide mechanism is further arranged to conduct better limiting and guiding on the piston rod, so that the piston can be better aligned with a central line, the piston is guaranteed to be free of eccentric wear, the compressor is guaranteed to have longer continuous operation time, and maintenance frequency is reduced.
In conclusion, in one embodiment of the invention, the vertical machine body is adopted, and the special guide mechanism and the specially designed piston ring seal are introduced, so that the technical difficulty of high-pressure oil-free downward dynamic seal is overcome, and the use requirement of the hydrogenation station is met.
In the mechanical piston compressor for the hydrogen filling station in the embodiment of the invention, the exhaust valve is provided with the temperature detector to detect the temperature of the exhaust gas, and the hydrogen detector is arranged at the position close to the exhaust valve to detect whether hydrogen leakage exists or not, so that the compressor is safer to operate.
In the mechanical piston compressor for the hydrogen station in the embodiment of the invention, the cooling jacket is further arranged on the outer portion of the cylinder in the circumferential direction, and the cooling jacket is separated from the side wall of the cylinder by a certain distance to form a cooling space for cooling fluid to flow so as to cool the compressor, thereby meeting the requirements of the technical standards of the hydrogen station.
In conclusion, the invention solves the technical difficulties of oil-free lubrication and dynamic sealing in high-pressure and hydrogen environment, and ensures the safe and reliable long-time operation of the compressor in the hydrogenation station.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic view of a mechanical piston compressor for a hydrogen station according to the present invention.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be constructed and operated in a particular orientation and thus are not to be considered limiting.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
As shown in fig. 1, a preferred embodiment of the present invention provides a mechanical piston compressor for a hydrogen station, comprising:
the air cylinder 1 is vertically arranged, the air cylinder 1 is provided with at least two cylinder bodies 11 which are arranged in parallel, a piston rod 12 is arranged in each cylinder body 11, and a piston 13 is arranged on each piston rod 12;
a housing 2 having a hollow interior;
the guide mechanism 3 is arranged in the shell 2, a plurality of guide channels are arranged on the guide mechanism 3, each guide channel corresponds to one cylinder body 11, and the piston rod 12 of the cylinder body 11 passes through the guide channels when moving up and down so as to limit, guide and seal the piston rod 12;
each piston rod 12 penetrates through the corresponding guide channel on the guide mechanism 3 and is connected with the crankshaft connecting rod 4, the crankshaft connecting rod 4 moves under the driving of the power mechanism, and the piston rods 12 move up and down along with the movement of the crankshaft connecting rod so as to drive the pistons 11 to move up and down;
wherein the guide mechanism 3 and the crankshaft connecting rod 4 are both arranged in the housing.
It should be further noted that the cylinder 1 is vertically arranged, and the guide mechanism 3 is further arranged to perform better limiting and guiding on the piston rod, so that the piston 13 can be better aligned with the central line, the eccentric wear phenomenon of the piston 13 is ensured to be reduced, and the piston 13 and the piston rod 12 can move stably. To ensure a longer continuous operation time of the compressor and to reduce maintenance frequency. If the cylinder 1 is horizontally arranged, the piston rod 12 will inevitably incline under the action of gravity in a long-time use state, which inevitably causes eccentric wear of the piston 13 and greatly reduces the sealing performance in the cylinder.
And the cylinder 1 is a vertical body which is vertically arranged and provides a base for the mechanical piston compressor for the whole hydrogen filling station.
It should be noted that the number of the cylinders is not limited herein, and may be two or more, and the following describes the case of two cylinders 11 in detail.
The inner space of the shell 2 is divided into two spaces and respectively corresponds to the cylinder bodies 11 of the cylinders 1, the guide mechanism 3 can be composed of a sub-guide mechanism and also can be composed of a plurality of sub-guide mechanisms (the specific number is not limited), if the guide mechanism 3 is a sub-guide mechanism, a plurality of guide channels are arranged on the guide mechanism and respectively correspond to the cylinder bodies 11 one by one, if the guide mechanism 3 is a plurality of sub-guide mechanisms, the number of the guide channels corresponds to the cylinder bodies 11 one by one, and each sub-guide mechanism is provided with one guide channel. Fig. 1 specifically shows a case where the guide mechanism 3 has two sub-guide mechanisms each of which is installed in two spaces through the installation plate 5, respectively. The sub-guide mechanism can be a guide plate with a guide hole arranged on the surface, and can also be a guide bearing, if the sub-guide mechanism is the guide bearing, the sub-guide mechanism still can keep good sealing performance when the piston rod 12 moves, and lubricating oil can be prevented from being brought into the cylinder.
According to a preferred embodiment of the present invention, in the mechanical piston compressor for hydrogen station, the size of the pistons 13 in all the cylinders 11 of the cylinders 1 is not exactly the same, that is, the size of the internal space of the cylinders 11 of the cylinders 1 is different, and when there are 2 cylinders 11 of the cylinders 1, the size of the pistons 13 in the two cylinders 11 is different, and the specific size of the two is calculated according to the thermodynamic calculation result of hydrogen compression. The intake pressure and the exhaust pressure of the two cylinders 11 are different, and the required cylinder volumes are different.
In another embodiment, in the mechanical piston compressor for the hydrogen station, the piston 13 is sleeved with a piston ring. And a piston ring is sleeved on the piston 13, so that the sealing property of the whole compressor is further improved, and no leakage of hydrogen is ensured. Under the state of no lubricating oil, the piston ring specially designed for high-pressure oil-free environment is used, so that the sealing effect is ensured, and the service life is longer.
However, since there is no lubrication effect of the lubricating oil, high temperature is caused by long-term operation, and therefore, a cooling jacket is circumferentially disposed outside the cylinder 1, and the cooling jacket is spaced from the side wall of the cylinder 1 by a certain distance to form a cooling space 7 for flowing cooling fluid, so as to cool the cylinder 1, the piston 12, and the piston rod 11, thereby prolonging the service life thereof. But because there is no lubricating action of lubricating oil, the temperature is higher, in order to further improve the cooling effect, the working efficiency of the compressor is guaranteed.
It should be further noted that the number of the piston rings is not limited, and may be multiple, the multiple piston rings are respectively sleeved on the piston 13 without overlapping, and the multiple piston rings simultaneously achieve a sealing effect, so as to achieve a better sealing effect.
And the cylinder 1 is vertically arranged, and a guide mechanism is also arranged to perform better limiting guide on the piston rod, so that the piston 13 can be better aligned with the central line, the eccentric wear phenomenon of the piston ring is reduced, and the piston rod move stably. To ensure a longer continuous operation time of the compressor and to reduce maintenance frequency.
In another embodiment, in the mechanical piston compressor for a hydrogen refueling station, the cylinder 1 is provided with a gas outlet, and a hydrogen detector is provided at a position near the gas outlet to detect whether there is a hydrogen leak. And the compressor is monitored in real time, so that the running of the compressor is safer. The specific installation position of the hydrogen gas detector is not limited as long as it can detect a hydrogen gas leakage condition.
In another embodiment, in the mechanical piston compressor for a hydrogen refueling station, the crankshaft connecting rod 4 comprises a crankshaft 41 and a connecting rod 42 connected to each other, each piston rod 12 passes through the corresponding guide channel on the guide mechanism 3 to be connected to the connecting rod 42, one end of the connecting rod 42 away from the piston rod 12 is connected to the crankshaft, the crankshaft 41 is driven to rotate by the power mechanism 6, and the connecting rod 42 moves up and down along with the rotation of the crankshaft 41, so as to drive the piston rod 12 to move up and down.
It should be specifically noted that the crankshaft 41 is processed into a non-homogeneous main shaft according to the sizes of the cylinder 11 and the piston 12, so as to achieve the effect of balancing mass, reduce vibration of the engine body, and avoid excessive operation noise.
In another embodiment, the mechanical piston compressor for a hydrogen station is provided with a temperature detector at a position close to the exhaust port to detect the temperature of the exhaust gas. And the compressor is monitored in real time, so that the running of the compressor is safer. The specific installation position of the temperature detector is not limited as long as it can detect the temperature of the discharge gas, so as to facilitate understanding of the working effect of the compressor.
In another embodiment, a stuffing box assembly 8 is further provided to seal and ensure that the lubricating oil does not enter the cylinders, the stuffing box assembly comprises at least one stage of stuffing, each stage of stuffing consists of a stuffing box, an oil scraper ring and a sealing ring, and is positioned in the cylinder body 11 of each cylinder 1 and below and above the guide mechanism.
After the motor is started, the crankshaft 41 is driven to rotate, the piston 13 reciprocates through the transmission of the connecting rod 42, and the working volume formed by the cylinder 11 and the piston 13 changes periodically.
When the piston 13 starts to move from the cylinder cover, the working volume in the cylinder 11 gradually increases, at this time, gas pushes away an air inlet valve along an air inlet pipe and enters the cylinder 11, and the air inlet valve is closed until the working volume is maximum; when the piston moves reversely, the working volume in the cylinder 11 is reduced, the gas pressure is increased, when the pressure in the cylinder 11 reaches and is slightly higher than the exhaust pressure, the exhaust valve is opened, the gas is discharged out of the cylinder 11, and until the piston moves to the limit position, the exhaust valve is closed. The above process repeats itself when the piston is again reversed. In a word, the crankshaft rotates once, the piston reciprocates once, and the processes of air intake, compression and exhaust are successively realized in the cylinder 11, namely, one working cycle is completed. "
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims (8)

1. A mechanical piston compressor for a hydrogen station is characterized by comprising:
the air cylinder is vertically arranged and provided with at least two parallel cylinder bodies, a piston rod is arranged in each cylinder body, and a piston is arranged on each piston rod;
a housing having a hollow interior; and
the guide mechanism is arranged in the shell, a plurality of guide channels are arranged on the guide mechanism, each guide channel corresponds to one cylinder body, and the piston rod of the cylinder body can pass through the guide channels when moving up and down to carry out limiting guide and sealing on the piston rod;
each piston rod penetrates through the corresponding guide channel on the guide mechanism and is connected with a crankshaft connecting rod, the crankshaft connecting rod moves under the driving of a power mechanism, and the piston rods move up and down along with the movement of the crankshaft connecting rod so as to drive the pistons to move up and down;
wherein the guide mechanism and the crankshaft connecting rod are both arranged in the shell.
2. The mechanical piston compressor for a hydrogen station according to claim 1, characterized in that the size of the piston in all the cylinders of the cylinder is not identical.
3. The mechanical piston compressor for a hydrogen station according to claim 1, wherein the piston is sleeved with a piston ring.
4. The mechanical piston compressor for a hydrogen station according to claim 4, wherein the cylinder has an exhaust port, and a hydrogen gas detector is provided at a position near the exhaust port to detect whether there is a hydrogen gas leak.
5. The mechanical piston compressor for the hydrogenation station as recited in claim 1, wherein the crankshaft connecting rod comprises a crankshaft and a connecting rod connected to each other, each of the piston rods sequentially passes through the corresponding guide channel on the guide mechanism and is connected to the connecting rod, one end of the connecting rod, which is far away from the piston rod, is connected to the crankshaft, the crankshaft is driven by a power mechanism to rotate, and the connecting rod moves up and down along with the rotation of the crankshaft, so as to drive the piston rod to move up and down.
6. The mechanical piston compressor for a hydrogen station of claim 5, wherein the crankshaft is a non-homogeneous crankshaft.
7. The mechanical piston compressor for the hydrogen station as claimed in claim 1, wherein a cooling jacket is circumferentially disposed on the outer portion of the cylinder, and the cooling jacket is spaced from the side wall of the cylinder to form a cooling space for a cooling fluid to flow.
8. The mechanical piston compressor for a hydrogen station according to claim 4, wherein said cylinder has an exhaust port, and a temperature detector is provided at a position near said exhaust port to detect the temperature of the exhaust gas.
CN202011358156.9A 2020-11-27 2020-11-27 Mechanical piston compressor for hydrogenation station Pending CN112539150A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011358156.9A CN112539150A (en) 2020-11-27 2020-11-27 Mechanical piston compressor for hydrogenation station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011358156.9A CN112539150A (en) 2020-11-27 2020-11-27 Mechanical piston compressor for hydrogenation station

Publications (1)

Publication Number Publication Date
CN112539150A true CN112539150A (en) 2021-03-23

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Publication number Priority date Publication date Assignee Title
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US20160341187A1 (en) * 2014-01-31 2016-11-24 Nuovo Pignone Srl Reciprocating motor-compressor with integrated stirling engine
CN205779542U (en) * 2016-03-15 2016-12-07 杭州杭氧压缩机有限公司 A kind of crosshead and the labyrinth piston compressor of piston rod hydraulic connecting
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0592478U (en) * 1992-05-21 1993-12-17 株式会社豊田自動織機製作所 Gas compressor
JP2011153563A (en) * 2010-01-27 2011-08-11 Japan Steel Works Ltd:The Reciprocating compressor
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US20140322043A1 (en) * 2013-04-26 2014-10-30 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Reciprocating compressor
US20160341187A1 (en) * 2014-01-31 2016-11-24 Nuovo Pignone Srl Reciprocating motor-compressor with integrated stirling engine
CN104196699A (en) * 2014-08-21 2014-12-10 吉林省三和电气系统工程有限公司 Gas booster pump
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CN205478181U (en) * 2015-12-23 2016-08-17 新特能源股份有限公司 A frizing device for compressor
CN205779542U (en) * 2016-03-15 2016-12-07 杭州杭氧压缩机有限公司 A kind of crosshead and the labyrinth piston compressor of piston rod hydraulic connecting
CN208619293U (en) * 2018-07-04 2019-03-19 蚌埠艾普压缩机制造有限公司 Packing seal component for the high hydrogen gas compressor of hydrogenation stations high-purity

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Title
化学工业部化工机械研究院: "《活塞式压缩机的无油润滑》", 31 July 1982, 北京:化学工业出版社 *
国石油天然气总公司劳资局编, 北京:石油工业出版社 *

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Application publication date: 20210323

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