CN111365210B - Efficient supercharging zero-clearance type ionic liquid compressor with accurately adjustable piston stroke - Google Patents
Efficient supercharging zero-clearance type ionic liquid compressor with accurately adjustable piston stroke Download PDFInfo
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- CN111365210B CN111365210B CN202010156150.7A CN202010156150A CN111365210B CN 111365210 B CN111365210 B CN 111365210B CN 202010156150 A CN202010156150 A CN 202010156150A CN 111365210 B CN111365210 B CN 111365210B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/008—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being a fluid transmission link
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B25/00—Multi-stage pumps
- F04B25/02—Multi-stage pumps of stepped piston type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component 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
- F04B39/0005—Component 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
- F04B39/0011—Component 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 liquid pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component 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
- F04B39/16—Filtration; Moisture separation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/002—Hydraulic systems to change the pump delivery
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/10—Other safety measures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/16—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by adjusting the capacity of dead spaces of working chambers
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- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The application belongs to the technical field of compressors, and particularly relates to a high-efficiency supercharging zero-clearance type ionic liquid compressor with an accurately adjustable piston stroke. The existing ion compressor adopts 5-stage compression, has a complex structure, is difficult to process and is expensive in manufacturing cost. The application provides an efficient supercharging zero-clearance ionic liquid compressor with an accurately adjustable piston stroke, which comprises an oil supply assembly, a reversing assembly, a gas compression assembly, a first gas transmission assembly, a gas-liquid separation assembly and a second gas transmission assembly; the gas compression assembly comprises a hydraulic cylinder and a gas compression cylinder, a first T-shaped piston is arranged in the hydraulic cylinder and connected with a displacement sensor, the end part of the first T-shaped piston is connected with a second T-shaped piston, and the second T-shaped piston is arranged in the gas compression cylinder. By adopting the compressor, the compression process from low-pressure hydrogen to high-pressure hydrogen can be completed under the action that the second T-shaped piston finishes one-time descending (air suction) and ascending (compressor exhaust), and the compression is efficient.
Description
Technical Field
The application belongs to the technical field of compressors, and particularly relates to a high-efficiency supercharging zero-clearance ionic liquid compressor with an accurately adjustable piston stroke.
Background
Hydrogen only generates water due to combustion, and has abundant sources, so that the hydrogen is known as clean energy with the most development potential in the century, and a fuel cell automobile taking hydrogen as energy has the advantages of environmental protection, high efficiency, zero pollution, zero emission and the like, and is more and more concerned by various countries. Therefore, the construction of the hydrogen station is very important as the guarantee of the hydrogen energy supply of the fuel cell automobile. However, at present, the number of hydrogen stations is still difficult to form a gas supply network, and the supply capacity of the hydrogen stations also becomes one of the bottlenecks in the popularization of fuel cell vehicles.
The hydrogen filling station is similar to the existing mature Compressed Natural Gas (CNG) filling station, and mainly comprises a gas discharging column, a compressor, a hydrogen storage tank, a hydrogen filling machine, a pipeline, a control system, a nitrogen purging device, a diffusing device, a safety monitoring device and the like, wherein the compressor is one of core devices of the hydrogen filling station. The compressors used in the hydrogenation station at present mainly comprise a reciprocating piston compressor, a diaphragm compressor and an ionic liquid compressor. The reciprocating piston compressor mainly drives the piston to reciprocate through the crank connecting rod and the crank connecting rod to realize hydrogen compression, has the advantages of mature technology, simple system structure and the like, but can pollute hydrogen in the reciprocating motion process of the piston, so that the operation and maintenance cost is higher; the diaphragm compressor does not need lubricating oil for lubrication, so that high-pressure hydrogen meeting the purity requirement of a fuel cell vehicle can be obtained. However, the diaphragm compressor needs to be cooled by air cooling or liquid cooling in the compression process, the cooling system is complex, and the technical difficulty is higher than that of the conventional compressor. Furthermore, the volume flow of the diaphragm compressor is low and the quality of the diaphragm required by the diaphragm compressor for hydrogen compression is high, which leads to an increase in the production costs.
The ionic liquid compressor adopts the ionic liquid to replace a metal piston to generate high pressure under the isothermal condition, can be used for a long time without maintenance, and therefore, the energy consumption is saved by 20%. However, the existing ion compressor adopts 5-stage compression, has a complex structure, is difficult to process and expensive in manufacturing cost, and limits the construction and development of a hydrogenation station.
Disclosure of Invention
1. Technical problem to be solved
Based on the ionic liquid compressor, the ionic liquid is adopted to replace a metal piston to generate high pressure under the isothermal condition, and the compressor can be used for a long time without maintenance, so that the energy consumption is saved by 20%. But current ionic compressor adopts 5 grades of compressions, the structure is comparatively complicated, processing difficulty and cost are expensive, has restricted the construction and the problem of development of hydrogen station, and this application provides the accurate adjustable high-efficient pressure boost zero clearance formula ionic liquid compressor of piston stroke.
2. Technical scheme
In order to achieve the purpose, the application provides an efficient pressurization zero-clearance ionic liquid compressor with a precisely adjustable piston stroke, which comprises a gas compression mechanism and a gas-liquid separation mechanism, wherein the gas compression mechanism is connected with the gas-liquid separation mechanism through a first pipeline;
the gas compression mechanism comprises an oil supply assembly, a reversing assembly, a gas compression assembly and a first gas transmission assembly which are sequentially connected, the oil supply assembly, the reversing assembly and the gas compression assembly are connected through a pipeline, the gas-liquid separation mechanism comprises a gas-liquid separation assembly and a second gas transmission assembly which are connected with each other, and the second gas transmission assembly is connected with the first gas transmission assembly through the first pipeline;
the gas compression assembly comprises a hydraulic cylinder and a gas compression cylinder, the hydraulic cylinder is communicated with the gas compression cylinder, and the gas compression cylinder is connected with the first gas transmission assembly;
a first T-shaped piston is arranged in the hydraulic cylinder and connected with a displacement sensor, the end part of the first T-shaped piston is connected with a second T-shaped piston, and the second T-shaped piston is arranged in the gas compression cylinder.
Another embodiment provided by the present application is: the oil supply assembly comprises a hydraulic oil tank, the hydraulic oil tank is connected with a hydraulic filter through a first hydraulic pipeline, the hydraulic filter is connected with a hydraulic pump through a second hydraulic pipeline, the hydraulic pump is connected with a servo motor, the hydraulic pump is connected with an overflow valve through a third hydraulic pipeline, the hydraulic pump is connected with a reversing assembly through a second hydraulic pipeline, the overflow valve is connected with the hydraulic oil tank through a fifth hydraulic pipeline, the reversing assembly is connected with a hydraulic cooler through an eighth hydraulic pipeline, and the hydraulic cooler is connected with the hydraulic oil tank through a ninth hydraulic pipeline.
Another embodiment provided by the present application is: the pneumatic cylinder is provided with a supporting seat, one end of the gas compression cylinder is arranged on the supporting seat, the other end of the gas compression cylinder is provided with an ionic liquid one-way injection valve and a first pressure sensor, the gas compression cylinder is connected with a pressure balance cleaning pipeline, and the pressure balance cleaning pipeline is connected with a pressure balance cleaning valve.
Another embodiment provided by the present application is: first gas transmission subassembly includes first admission line, first admission valve and first exhaust valve, first admission line is connected with first admission valve, first admission valve set up in on the gas compression jar, first exhaust valve through first exhaust line with the gaseous transmission subassembly of second is connected.
Another embodiment provided by the present application is: the gas-liquid separation assembly comprises a gas-liquid separation unit and a liquid collection unit which are connected with each other, the gas-liquid separation unit comprises a gas-liquid separation device, a liquid filter is arranged in the gas-liquid separation device, a second pressure sensor is arranged on the gas-liquid separation device, and an ionic liquid level sensor is arranged on the gas-liquid separation device; the liquid collecting unit comprises a stop valve, one end of the stop valve is connected with the gas-liquid separating device through a first ionic liquid pipeline, and the other end of the stop valve is connected with an ionic liquid collector through a second ionic liquid pipeline.
Another embodiment provided by the present application is: the second gas transmission assembly comprises a second gas inlet valve, a second exhaust valve and a second exhaust pipeline, the second gas inlet valve is connected with the first exhaust pipeline, and the second gas inlet valve is arranged on the gas-liquid separation device.
Another embodiment provided by the present application is: the reversing component is a three-position four-way electromagnetic proportional reversing valve.
Another embodiment provided by the present application is: and the reversing assembly is connected with the hydraulic cylinder through a sixth hydraulic pipeline.
Another embodiment provided by the present application is: the end part of the first T-shaped piston is fixedly connected with the second T-shaped piston through a flange.
Another embodiment provided by the present application is: the displacement sensor is a magnetostrictive displacement sensor, the magnetostrictive displacement sensor is connected with the first T-shaped piston through a non-contact magnetic ring, and the non-contact magnetic ring is arranged at the bottom of the first T-shaped piston.
3. Advantageous effects
Compared with the prior art, the beneficial effect of the ionic liquid compressor that this application provided lies in:
the application provides an ionic liquid compressor for the accurate adjustable high-efficient pressure boost zero clearance formula ionic liquid compressor of piston stroke.
The application provides an ionic liquid compressor provides the accurate adjustable high-efficient pressure boost zero clearance formula ionic liquid compressor of piston stroke.
The application provides an ionic liquid compressor can realize the high-efficient pressure boost's of hydrogen station to low pressure hydrogen (L-H2) requirement, simple structure, processing convenience, control accuracy height, energy consumption are low, zero clearance volume, the commonality is strong, non-staining hydrogen, with low costs.
The application provides an ionic liquid compressor, the displacement of the first T type piston of pneumatic cylinder is measured to the accurate adjustable high-efficient pressure boost zero clearance formula ionic liquid compressor of piston stroke adoption magnetostrictive displacement sensor, and magnetostrictive displacement sensor has characteristics such as non-contact measurement, precision height, good reproducibility, reliable and stable, so this compressor can realize the accurate control of piston stroke.
The application provides an ionic liquid compressor, at the accurate adjustable high-efficient pressure boost zero clearance formula ionic liquid compressor working process of piston stroke, although the exhaust of hydrogen can carry partial ionic liquid and lead to the ionic liquid's in the gas compression jar liquid measure to reduce, but partial ionic liquid that carries can obtain under the gas-liquid separation device effect and filter back ionic liquid, and the accessible ionic liquid level sensor detects the liquid measure of filtering back ionic liquid. The compressor can form a closed-loop control system through a magnetostrictive displacement sensor, an ionic liquid level sensor, a servo motor and a corresponding hardware system, so that the displacement of the first T-shaped piston is accurately adjusted to ensure the zero clearance volume operation of the compressor.
The application provides an ionic liquid compressor, because the effective hydraulic pressure area ratio that has between the first T type piston of the accurate adjustable high-efficient pressure boost zero clearance formula ionic liquid compressor of piston stroke and the second T type piston is greater than 1, so can realize the high-efficient pressure boost to conventional hydraulic system, for example, when the effective hydraulic pressure area ratio of first T type piston and second T type piston is 2, can increase conventional hydraulic system 31.5 MPa's pressure to 63 MPa. In addition, the effective hydraulic area of the second T-shaped piston can be adjusted as required in the use process of the compressor, different effective hydraulic area ratios are obtained, and then a higher hydraulic pressurization effect is achieved.
The application provides an ionic liquid compressor adopts this compressor to accomplish once descending (breathing in) and rise (compressor exhaust) action under at second T type piston, can accomplish the compression process to low pressure hydrogen to high pressure hydrogen, and this ionic liquid compressor has the compression high efficiency.
Drawings
FIG. 1 is a schematic view of an ionic liquid compressor configuration of the present application;
in the figure: 1-a hydraulic oil tank, 2-a first hydraulic pipeline, 3-a hydraulic filter, 4-a second hydraulic pipeline, 5-a hydraulic pump, 6-a servo motor, 7-a third hydraulic pipeline, 8-a fourth hydraulic pipeline, 9-an overflow valve, 10-a fifth hydraulic pipeline, 11-a reversing component, 12-a sixth hydraulic pipeline, 13-a hydraulic cylinder, 14-a first T-shaped piston, 15-a lower oil cavity of the hydraulic cylinder, 16-an upper oil cavity of the hydraulic cylinder, 17-hydraulic oil, 18-a displacement sensor, 19-a non-contact magnetic ring, 20-a seventh hydraulic pipeline, 21-an eighth hydraulic pipeline, 22-a hydraulic cooler, 23-a ninth hydraulic pipeline, 24-a supporting seat, 25-a gas compression cylinder and 26-a second T-shaped piston, 27-flange, 28-isolation chamber, 29-pressure balance cleaning pipeline, 30-pressure balance cleaning valve, 31-ionic liquid, 32-hydrogen compression chamber, 33-ionic liquid one-way injection valve, 34-first air inlet valve, 35-low pressure hydrogen, 36-first air inlet pipeline, 37-first pressure sensor, 38-first exhaust valve, 39-first exhaust pipeline, 40-second air inlet valve, 41-gas-liquid separation device, 42-liquid filter, 43-high pressure hydrogen, 44-second exhaust valve, 45-second exhaust pipeline, 46-high pressure hydrogen user end, 47-second pressure sensor, 48-filtered ionic liquid, 49-ionic liquid level sensor, 50-first ionic liquid pipeline, 51-stop valve, 52-second ionic liquid pipeline, 53-ionic liquid collector, 54-make-up ionic liquid.
Detailed Description
Hereinafter, specific embodiments of the present application will be described in detail with reference to the accompanying drawings, and it will be apparent to those skilled in the art from this detailed description that the present application can be practiced. Features from different embodiments may be combined to yield new embodiments, or certain features may be substituted for certain embodiments to yield yet further preferred embodiments, without departing from the principles of the present application.
Ionic liquid compressors were first proposed by Linde corporation (Linde) and successfully developed in collaboration with the third worldwide automobile manufacturer, dymlerchler AG. For example, Linde corporation (Linde) developed a 5-stage ion compressor in which a piston moves up and down hydraulically, and there was an ionic liquid on top of the piston, which was not combined with gas, compressed with hydrogen gas by the compressor cylinder as a liquid piston.
Referring to fig. 1, the application provides an efficient supercharging zero-clearance ionic liquid compressor with precisely adjustable piston stroke, which comprises a gas compression mechanism and a gas-liquid separation mechanism, wherein the gas compression mechanism is connected with the gas-liquid separation mechanism through a first exhaust pipeline 39;
the gas compression mechanism comprises an oil supply assembly, a reversing assembly, a gas compression assembly and a first gas transmission assembly which are sequentially connected, the oil supply assembly, the reversing assembly and the gas compression assembly are connected through a pipeline, the gas-liquid separation mechanism comprises a gas-liquid separation assembly and a second gas transmission assembly which are connected with each other, and the second gas transmission assembly is connected with the first gas transmission assembly through the first pipeline;
the gas compression assembly comprises a hydraulic cylinder 13 and a gas compression cylinder 25, the hydraulic cylinder 13 is communicated with the gas compression cylinder 25, and the gas compression cylinder 25 is connected with the first gas transmission assembly;
a first T-shaped piston 14 is arranged in the hydraulic cylinder, the first T-shaped piston 14 is connected with a displacement sensor 18, the end of the first T-shaped piston 14 is connected with a second T-shaped piston 26, and the second T-shaped piston 26 is arranged in the gas compression cylinder 25.
The oil supply assembly supplies hydraulic oil to the hydraulic cylinder upper oil chamber 16 in the hydraulic cylinder 13, and the first T-shaped piston 14 moves downward under the action of the hydraulic oil 17, so as to drive the second T-shaped piston 26 to move downward. When the first T-shaped piston 14 drives the second T-shaped piston 14 to move downwards under the action of the hydraulic system, low-pressure hydrogen can be sucked into the gas compression cylinder 25 through the first gas transmission assembly, so that the gas suction process of the compressor is realized; when the oil supply unit supplies hydraulic oil to the cylinder lower oil chamber 15 in the hydraulic cylinder 13, the second T-shaped piston 26 moves upward and pushes the ionic liquid 31 to move upward, and compression of the low-pressure hydrogen gas in the gas compression cylinder 25 is started to obtain high-pressure hydrogen gas. The high-pressure hydrogen is output to a user through the second gas transmission component. The gas-liquid separation mechanism separates the ionic liquid from the hydrogen and collects the ionic liquid.
Further, the oil supply assembly comprises a hydraulic oil tank 1, the hydraulic oil tank 1 is connected with a hydraulic filter 3 through a first hydraulic pipeline 2, the hydraulic filter 3 is connected with a hydraulic pump 5 through a second hydraulic pipeline 4, the hydraulic pump 5 is connected with a servo motor 6, the hydraulic pump 5 is connected with an overflow valve 9 through a third hydraulic pipeline 7, the hydraulic pump 5 is connected with a reversing assembly 11 through the second hydraulic pipeline 2, the overflow valve 9 is connected with the hydraulic oil tank 1 through a fifth hydraulic pipeline 10, the reversing assembly 11 is connected with a hydraulic cooler 22 through an eighth hydraulic pipeline 21, and the hydraulic cooler 22 is connected with the hydraulic oil tank 1 through a ninth hydraulic pipeline 23.
Further, a support seat 24 is arranged on the hydraulic cylinder 13, one end of the gas compression cylinder 25 is arranged on the support seat 24, the other end of the gas compression cylinder 25 is provided with an ionic liquid one-way injection valve 33 and a first pressure sensor 37, the gas compression cylinder 25 is connected with a pressure balance cleaning pipeline 29, and the pressure balance cleaning pipeline 29 is connected with a pressure balance cleaning valve 30.
Further, the first gas transmission assembly comprises a first gas inlet pipe 36, a first gas inlet valve 34 and a first gas outlet valve 38, the first gas inlet pipe 36 is connected with the first gas inlet valve 34, the first gas inlet valve 34 is disposed on the gas compression cylinder 25, the first gas outlet valve 38 is disposed on the gas compression cylinder 25, and the first gas outlet valve 38 is connected with the second gas transmission assembly through a first gas outlet pipe 39.
Further, the gas-liquid separation assembly comprises a gas-liquid separation unit and a liquid collection unit which are connected with each other, the gas-liquid separation unit comprises a gas-liquid separation device 41, a liquid filter 42 is arranged in the gas-liquid separation device 41, a second pressure sensor 47 is arranged on the gas-liquid separation device 41, and an ionic liquid level sensor 49 is arranged on the gas-liquid separation device 41; the liquid collecting unit comprises a stop valve 51, one end of the stop valve 51 is connected with the gas-liquid separating device 41 through a first ionic liquid pipeline 50, and the other end of the stop valve 51 is connected with an ionic liquid collector 53 through a second ionic liquid pipeline 52.
Further, the second gas transmission assembly comprises a second gas inlet valve 40, a second gas outlet valve 44 and a second gas outlet pipeline 45, the second gas inlet valve 40 is connected with the first gas outlet pipeline 39, and the second gas inlet valve 40 is arranged on the gas-liquid separation device 41.
Further, the reversing assembly 11 is a three-position four-way electromagnetic proportional reversing valve.
Further, the reversing assembly 11 is connected with a lower cylinder chamber 15 of the hydraulic cylinder 13 through a sixth hydraulic pipeline 12, and is connected with an upper cylinder chamber 16 of the hydraulic cylinder 13 through a seventh hydraulic pipeline 20.
Further, the end of the first T-shaped piston 14 is fixedly connected to the second T-shaped piston 26 by a flange 27.
Further, the displacement sensor 18 is a magnetostrictive displacement sensor, the magnetostrictive displacement sensor is connected with the first T-shaped piston 14 through a non-contact magnetic ring 19, and the non-contact magnetic ring 19 is disposed at the bottom of the first T-shaped piston 14.
Examples
Referring to fig. 1, the zero clearance formula ionic liquid compressor of accurate adjustable high-efficient pressure boost of piston stroke, including hydraulic tank 1, be connected with first hydraulic pressure pipeline 2 on the hydraulic tank 1, be connected with hydraulic filter 3 on the first hydraulic pressure pipeline 2, hydraulic filter 3 is connected with the entry oil circuit of hydraulic pump 5 behind second hydraulic pressure pipeline 4, install servo motor 6 on the hydraulic pump 5, the export oil circuit of hydraulic pump 5 is connected with third hydraulic pressure pipeline 7 and fourth hydraulic pressure pipeline 8 respectively, third hydraulic pressure pipeline 7 is connected with overflow valve 9, overflow valve 9 links to each other with hydraulic tank 1 behind fifth hydraulic pressure pipeline 10. The fourth hydraulic pipeline 8 is connected with a three-position four-way electromagnetic proportional reversing valve 11, the three-position four-way electromagnetic proportional reversing valve 11 is connected with a hydraulic cylinder 13 through a sixth hydraulic pipeline 12, a first T-shaped piston 14 is installed inside the hydraulic cylinder 13 in a matched mode, a hydraulic cylinder lower oil cavity 15 and a hydraulic cylinder upper oil cavity 16 are formed by the first T-shaped piston 14 and the hydraulic cylinder 13 respectively, hydraulic oil 17 is filled inside the hydraulic cylinder lower oil cavity 15 and the hydraulic cylinder upper oil cavity 16, a displacement sensor 18 is installed at the bottom of the hydraulic cylinder 13, and a non-contact magnetic ring 19 on the displacement sensor 18 is installed at the bottom of the first T-shaped piston 14 in a matched mode. The seventh hydraulic pipeline 20 is respectively communicated with the hydraulic cylinder upper oil cavity 16 and the three-position four-way electromagnetic proportional directional valve 11, the three-position four-way electromagnetic proportional directional valve 11 is connected with the hydraulic cooler 22 after passing through the eighth hydraulic pipeline 21, and the hydraulic cooler 22 is communicated with the hydraulic oil tank 1 after passing through the ninth hydraulic pipeline 23. 24 fixed mounting of supporting seat is in the upper end of pneumatic cylinder 13, the cooperation is installed on 24 supporting seats and is taken radiating fin's hydrogen compression jar 25 gas compression jar promptly, take radiating fin's hydrogen compression jar fit in install second T type piston 26, second T type piston 26 links firmly together through flange 27 and first T type piston 14, form between second T type piston 26 and the hydrogen compression jar of taking radiating fin and keep apart chamber 28, keep apart the chamber 28 lower extreme and be connected with the clean pipeline of pressure balance 29, the clean pipeline of pressure balance 29 links firmly with the clean valve of pressure balance 30. The upper side of the second T-shaped piston 26 is provided with ionic liquid 31 with a certain height, the upper side of the ionic liquid 31 with a certain height is provided with a hydrogen compression cavity 32, an ionic liquid one-way injection valve 33 and a first air inlet valve 34 are respectively and fixedly arranged on the left upper side of the hydrogen compression cylinder 25 with the radiating fins, and the first air inlet valve 34 is connected with a first air inlet pipeline 36 for low-pressure hydrogen 35 to flow through. The first pressure sensor 37 and the first exhaust valve 38 are respectively fixedly installed on the upper right side of the hydrogen compression cylinder 25 with the heat dissipation fins, and the first exhaust valve 38 is communicated with the second intake valve 40 through a first exhaust pipe 39. The second air inlet valve 40 is fixedly installed on the gas-liquid separation device 41, the liquid filter 42 is installed inside the gas-liquid separation device 41, high-pressure hydrogen 43 is arranged outside the liquid filter 42, the second air outlet valve 44 is installed at the upper right end of the gas-liquid separation device 41, and the second air outlet pipeline 45 is respectively communicated with the second air outlet valve 44 and a high-pressure hydrogen user end 46. A second pressure sensor 47 and an ionic liquid level sensor 49 for measuring the filtered ionic liquid 48 are fixedly mounted on the right side of the gas-liquid separation device 41. The bottom of the gas-liquid separator 41 is communicated with an ionic liquid collector 53 via a first ionic liquid line 50, a shutoff valve 51, and a second ionic liquid line 52, and a replenishment ionic liquid 54 is stored in the ionic liquid collector 53.
The working principle of this application does:
(1) the working principle of the compressor in the air suction process is as follows:
the servo motor 6 is started to drive the hydraulic pump 5 to start working, the hydraulic system starts working, the hydraulic system can be stabilized at 30MPa under the action of the overflow valve 9, when the three-position four-way electromagnetic proportional directional valve is controlled to be opened and the left side control position is controlled, hydraulic oil of the hydraulic system enters the upper oil cavity 16 of the hydraulic cylinder through the fourth hydraulic pipeline 8 and the seventh hydraulic pipeline 20, the first T-shaped piston 14 moves downwards under the action of the hydraulic oil 17, and then the second T-shaped piston 26 is driven to move downwards. When the pressure in the hydrogen compressing chamber 32 is lower than the back pressure of the first intake valve 34, the first intake valve 34 is opened, and low-pressure hydrogen 35 can be sucked into the hydrogen compressing chamber 32 inside the hydrogen compressing cylinder.
(2) The working principle of the compression and exhaust process of the compressor is as follows:
when the three-position four-way electromagnetic proportional directional valve is controlled to open the right control position, hydraulic oil of a hydraulic system enters the hydraulic cylinder lower oil cavity 15 through the fourth hydraulic pipeline 8 and the sixth hydraulic pipeline 12, the first T-shaped piston 14 moves upwards under the action of the hydraulic oil 17, the second T-shaped piston 26 is driven to move upwards, the ionic liquid 31 is pushed to move upwards, and low-pressure hydrogen 35 in the hydrogen compression cavity 32 is compressed; when the pressure in the hydrogen compression chamber 32 is higher than the back pressure of the first exhaust valve 38, the first exhaust valve 38 is opened, and the compressed high-pressure hydrogen 43 passes through the first exhaust valve 38, the first exhaust pipe 39 and the second intake valve 40, and enters the gas-liquid separation device 41. After the action of the gas-liquid separation device 41, the high-pressure hydrogen 43 passes through the second exhaust valve 44 and the second exhaust pipeline 45 and then enters the high-pressure hydrogen user side 46.
The application provides an ionic liquid compressor, the accurate adjustable high-efficient pressure boost zero clearance formula ionic liquid compressor of piston stroke still has simple structure, and moving part is few, and processing and maintenance are convenient, and the energy consumption is low, non-staining hydrogen, advantages such as low-cost.
Although the present application has been described above with reference to specific embodiments, those skilled in the art will recognize that many changes may be made in the configuration and details of the present application within the principles and scope of the present application. The scope of protection of the application is determined by the appended claims, and all changes that come within the meaning and range of equivalency of the technical features are intended to be embraced therein.
Claims (6)
1. The accurate adjustable high-efficient pressure boost zero clearance formula ionic liquid compressor of piston stroke, its characterized in that: the gas compression mechanism is connected with the gas-liquid separation mechanism through a first pipeline;
the gas compression mechanism comprises an oil supply assembly, a reversing assembly, a gas compression assembly and a first gas transmission assembly which are sequentially connected, the oil supply assembly, the reversing assembly and the gas compression assembly are connected through a pipeline, the gas-liquid separation mechanism comprises a gas-liquid separation assembly and a second gas transmission assembly which are connected with each other, and the second gas transmission assembly is connected with the first gas transmission assembly through the first pipeline;
the gas compression assembly comprises a hydraulic cylinder and a gas compression cylinder, the hydraulic cylinder is communicated with the gas compression cylinder, and the gas compression cylinder is connected with the first gas transmission assembly;
a first T-shaped piston is arranged in the hydraulic cylinder and connected with a displacement sensor, the end part of the first T-shaped piston is connected with a second T-shaped piston, the second T-shaped piston is arranged in the gas compression cylinder, and the displacement sensor is a magnetostrictive displacement sensor; the hydraulic cylinder is provided with a supporting seat, one end of the gas compression cylinder is arranged on the supporting seat, the other end of the gas compression cylinder is provided with an ionic liquid one-way injection valve and a first pressure sensor, the gas compression cylinder is connected with a pressure balance cleaning pipeline, and the pressure balance cleaning pipeline is connected with a pressure balance cleaning valve; the first gas transmission assembly comprises a first gas inlet pipeline, a first gas inlet valve and a first gas exhaust valve, the first gas inlet pipeline is connected with the first gas inlet valve, the first gas inlet valve is arranged on the gas compression cylinder, the first gas exhaust valve is arranged on the gas compression cylinder, and the first gas exhaust valve is connected with the second gas transmission assembly through a first gas exhaust pipeline; the gas-liquid separation assembly comprises a gas-liquid separation unit and a liquid collection unit which are connected with each other, the gas-liquid separation unit comprises a gas-liquid separation device, a liquid filter is arranged in the gas-liquid separation device, a second pressure sensor is arranged on the gas-liquid separation device, and an ionic liquid level sensor is arranged on the gas-liquid separation device; the liquid collecting unit comprises a stop valve, one end of the stop valve is connected with the gas-liquid separating device through a first ionic liquid pipeline, and the other end of the stop valve is connected with an ionic liquid collector through a second ionic liquid pipeline;
the magnetostrictive displacement sensor is connected with the first T-shaped piston through a non-contact magnetic ring, and the non-contact magnetic ring is arranged at the bottom of the first T-shaped piston.
2. The ionic liquid compressor of claim 1, wherein: the oil supply assembly comprises a hydraulic oil tank, the hydraulic oil tank is connected with a hydraulic filter through a first hydraulic pipeline, the hydraulic filter is connected with a hydraulic pump through a second hydraulic pipeline, the hydraulic pump is connected with a servo motor, the hydraulic pump is connected with an overflow valve through a third hydraulic pipeline, the hydraulic pump is connected with a reversing assembly through a second hydraulic pipeline, the overflow valve is connected with the hydraulic oil tank through a fifth hydraulic pipeline, the reversing assembly is connected with a hydraulic cooler through an eighth hydraulic pipeline, and the hydraulic cooler is connected with the hydraulic oil tank through a ninth hydraulic pipeline.
3. The ionic liquid compressor of claim 1, wherein: the second gas transmission assembly comprises a second gas inlet valve, a second exhaust valve and a second exhaust pipeline, the second gas inlet valve is connected with the first exhaust pipeline, and the second gas inlet valve is arranged on the gas-liquid separation device.
4. The ionic liquid compressor as set forth in any one of claims 1 to 3, wherein: the reversing component is a three-position four-way electromagnetic proportional reversing valve.
5. The ionic liquid compressor of claim 4, wherein: and the reversing assembly is connected with the hydraulic cylinder through a sixth hydraulic pipeline.
6. The ionic liquid compressor of claim 4, wherein: the end part of the first T-shaped piston is fixedly connected with the second T-shaped piston through a flange.
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| CN112903451B (en) * | 2021-01-27 | 2022-12-16 | 中国石油大学(华东) | Direct tensile test instrument of annular rock sample |
| CN113669241B (en) * | 2021-08-12 | 2022-05-20 | 西安交通大学 | Liquid piston compressor control system |
| CN113757072A (en) * | 2021-10-27 | 2021-12-07 | 郑立 | Ionic liquid hydrogen compressor and using method thereof |
| CN114109759B (en) * | 2021-11-11 | 2023-11-03 | 北京海德利森科技有限公司 | Rapid ionic liquid compressor for large-scale hydrogen production and storage |
| CN114233604B (en) * | 2022-01-26 | 2024-03-29 | 山东易阳石化节能装备有限公司 | Zero clearance ionic liquid piston gas compression device |
| CN115030883B (en) * | 2022-06-16 | 2023-07-18 | 西安交通大学 | Cyclone separator suitable for ionic liquid hydrogen compressor and working method thereof |
| CN115681074B (en) * | 2022-10-14 | 2023-11-14 | 西安交通大学 | Double-piston two-stage supercharging porous medium efficient heat exchange type ionic liquid compressor |
| CN115681073B (en) * | 2022-10-14 | 2023-11-14 | 西安交通大学 | T-shaped wedge type ionic liquid compressor and liquid drive control mode thereof |
| CN116044712B (en) * | 2023-01-16 | 2024-05-14 | 西安交通大学 | Ionic liquid compressor capable of controlling spraying to carry out liquid supplementing cooling by piston displacement and working method thereof |
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