EP3803118A1 - Dispositif et procédé de compression d'un gaz à basse pression - Google Patents
Dispositif et procédé de compression d'un gaz à basse pressionInfo
- Publication number
- EP3803118A1 EP3803118A1 EP19742827.9A EP19742827A EP3803118A1 EP 3803118 A1 EP3803118 A1 EP 3803118A1 EP 19742827 A EP19742827 A EP 19742827A EP 3803118 A1 EP3803118 A1 EP 3803118A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- liquid
- gas
- compression chamber
- inlet
- outlet
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 14
- 239000007788 liquid Substances 0.000 claims abstract description 103
- 230000006835 compression Effects 0.000 claims abstract description 99
- 238000007906 compression Methods 0.000 claims abstract description 99
- 230000003134 recirculating effect Effects 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims description 106
- 238000006073 displacement reaction Methods 0.000 claims description 25
- 230000014759 maintenance of location Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- 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
- F04B31/00—Free-piston pumps specially adapted for elastic fluids; Systems incorporating such pumps
-
- 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
-
- 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
- F04B49/22—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 means of valves
- F04B49/24—Bypassing
-
- 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
- F04B51/00—Testing machines, pumps, or pumping installations
Definitions
- the present invention provides a device and a method for compressing a low pressure gas. It applies, in particular, to the compression of biogas.
- the compressor can include several stages of compression with intermediate cooling, which complicates the process.
- the compressors can be of different types with the chosen configurations:
- Dynamic compressors are sensitive to charge composition, flow variation, have a limited compression ratio and are energy intensive.
- the present invention aims to remedy all or part of these disadvantages.
- the present invention provides a device for compressing a low-pressure gas, which comprises:
- At least one compression chamber comprising:
- a liquid displacement means positioned on a liquid circuit connecting a liquid outlet and a liquid inlet of a compression chamber and
- the device object of the present invention comprises a non-return valve configured to prevent a return of gas in a gas inlet.
- the device object of the present invention comprises a liquid retention valve configured to retain the liquid in a compression chamber.
- the displacement means is configured so that the output liquid has a pressure of between 30 and 70 bar.
- the moving means is a pump.
- the device of the present invention comprises a plurality of compression chambers in series for the liquid circuit, a liquid outlet of a compression chamber being connected to a liquid inlet of another chamber. compression.
- the device which is the subject of the present invention comprises a plurality of parallel compression chambers for the gas, each compression chamber comprising an inlet and a gas outlet independent of another compression chamber.
- the device which is the subject of the present invention comprises means for measuring the pressure of the gas inside the compression chamber and means for opening the gas outlet of the compression chamber according to the measured pressure.
- the present invention provides a method of compressing a low-pressure gas, which comprises:
- FIG. 1 represents, schematically, a first particular embodiment of the device that is the subject of the present invention
- FIG. 2 represents, schematically, a second particular embodiment of the device that is the subject of the present invention.
- FIG. 3 shows schematically and in the form of a logic diagram, a particular sequence of steps of the method object of the present invention.
- gas refers to both natural gas, biogas and syngas.
- liquid refers to any liquid.
- viscous and incompressible fluid is envisaged.
- FIG. 1 which is not to scale, shows a schematic view of an embodiment of the device 100 which is the subject of the present invention.
- This device 100 for compressing a low-pressure gas comprises:
- At least one compression chamber 105 comprising:
- a piston 130 situated between the inlet and the gas outlet on the one hand and the inlet and the outlet for liquid on the other hand and
- a liquid displacement means 135 positioned on a liquid circuit connecting a liquid outlet and a liquid inlet of a compression chamber.
- the compression chamber 105 is formed, for example, of a watertight wall surrounding a determined volume in which the piston 130 evolves.
- the sealed wall comprises for only openings
- the compression chamber 105 may have an interior volume of cylindrical shape, for example.
- the term "cylindrical” here refers to a cylinder of revolution about an axis.
- the internal volume of the compression chamber 105 can be of any type allowing the displacement of a piston 130. This generally implies a constant cross section relative to an axis of displacement of the piston 130.
- Compression chamber 105 is configured to allow a rise in gas pressure at pressures above 50 bar, 100 bar or 200 bar, for example.
- the pressure of the gas entering a compression chamber 105 is greater than 3 or 4 bar, and preferably greater than 7 bar.
- Each of the inlet 110 and the gas outlet 115 and the inlet 120 and the liquid outlet 125 is, for example, an opening in the compression chamber 105.
- Each of these elements, 110, 115, 120 and 125 is preferably associated with a gas or liquid transport pipe depending on the nature of the element.
- at least one of the inlet 110 and the gas outlet 115 and the inlet 120 and the liquid outlet 125 are provided with a nonreturn valve 140.
- This nonreturn valve 140 can be mounted directly on an opening of the compression chamber 105 or downstream of this opening, at a pipe associated with the element in question, for example.
- Such a nonreturn valve 140 is configured, for example, to prevent a return of gas into a gas inlet 110.
- At least one non-return valve 140 is replaced by a valve or any other type of device capable of blocking the passage of gas or liquid depending on the associated element.
- the device 100 includes a liquid retention valve 145 configured to retain the liquid in a compression chamber 105.
- This valve 145 may be of any type known to those skilled in the art and adapted to the operating pressure in the circuit 150 of liquid.
- This valve 145 can be mounted directly at the outlet of the compression chamber 105 or along the circuit 150.
- each of the input 110 and the gas outlet 115 and the inlet 120 and the liquid outlet 125 may be formed of a multitude of sub-elements of the same type participating in the same function.
- the gas inlet 110 may be formed of a multitude of openings in the compression chamber 105, each opening being fed by a separate duct or common to other openings.
- the piston 130 is, for example, a sealing surface or a membrane moving along an axis of the compression chamber 105. This piston 130 can be guided by an axis fixed at one or the other of the ends moving said piston 130.
- the displacement means 135 may be of any type allowing the displacement of a liquid in a liquid circuit.
- the choice of the displacement means 135 depends on the size of the circuit 150 and the total pressure drop of this circuit 150.
- the displacement means 135 is configured so that the output liquid has a pressure of between 30 and 70 bar.
- the device 100 can compress at any pressure value, preferably less than 300 bar.
- the displacement means 135 is a pump.
- the filling of the chambers 105 is performed in a sequential manner, starting with the chamber closest to the delivery of the liquid displacement means 135. Once the operation is completed, the liquid is then sent to the second chamber 105, and so on.
- the filling of the chambers 105 is performed simultaneously. This filling is ensured, for example, by a main circuit which supplies the various compression chambers 105.
- the device 100 which is the subject of the present invention comprises a plurality of compression chambers 105 in parallel for the gas, each compression chamber comprising an inlet 110 and an outlet 115 for gases that are independent of another chamber. compression.
- the device 100 which is the subject of the present invention comprises a means 165 for measuring the pressure of the gas inside the compression chamber 105 and a circuit 160 for recirculating the gas towards the inlet of a compression chamber when the measured pressure is less than a determined limit value.
- the pressure measuring means 165 is, for example, a pressure sensor positioned inside the compression chamber 105, the gas side of the piston 130 or the liquid side of the piston 130.
- the pressure measuring means 165 is mechanical or electrical and operates by sensing the position of the piston 130 in the chamber. When this piston 130 reaches a determined position on its axis of displacement, a gas pressure is deduced by the measuring means 165.
- the device 100 which is the subject of the present invention comprises a means 165 for measuring the pressure of the gas inside the compression chamber 105 and a means 170 for opening the outlet 115 for the gas of the compression chamber as a function of the measured pressure.
- the means 170 for opening is, for example, a discharger.
- the discharger forms both the measuring means 165 and the opening means 170. This discharger is calibrated at a set pressure.
- FIG. 3 diagrammatically shows a particular flow diagram of the process 200 that is the subject of the present invention.
- This method 200 for compressing a low-pressure gas comprises:
- the pressure in the compression chamber is less than the pressure in a gas supply line to a gas inlet of said compression chamber.
- This can be achieved by pressurizing the gas upstream or by reducing the pressure in the liquid portion of the compression chamber.
- a valve is closed at the entrance to the liquid inlet while the displacement means is in operation. This causes a displacement of the piston towards the liquid outlet, which reduces the pressure inside the part dedicated to the gas of the compression chamber whose gas outlet is also closed.
- the gas inlet is also closed.
- the displacement means 135 is activated, so as to fill the liquid portion of the liquid compression chamber, which gradually displaces the piston towards the gas outlet, effectively compressing this gas.
- the gas is released to the gas outlet of the compression chamber.
- the circulation of liquid can continue, so as to further move the piston to the total evacuation, or almost total, of the gas to the gas outlet.
- the liquid outlet of the compression chamber is opened.
- the method 200 object of the present invention is achieved, for example, by the implementation of one of the devices 100 or 300 objects of the present invention and described with reference to Figures 1 and 3.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Sampling And Sample Adjustment (AREA)
- Compressor (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1854530A FR3081518B1 (fr) | 2018-05-28 | 2018-05-28 | Dispositif et procede de compression d'un gaz a basse pression |
PCT/FR2019/051201 WO2019229339A1 (fr) | 2018-05-28 | 2019-05-24 | Dispositif et procédé de compression d'un gaz à basse pression |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3803118A1 true EP3803118A1 (fr) | 2021-04-14 |
EP3803118B1 EP3803118B1 (fr) | 2023-02-08 |
Family
ID=62816824
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19742827.9A Active EP3803118B1 (fr) | 2018-05-28 | 2019-05-24 | Dispositif et procédé de compression d'un gaz à basse pression |
Country Status (6)
Country | Link |
---|---|
US (1) | US20210207591A1 (fr) |
EP (1) | EP3803118B1 (fr) |
CN (1) | CN112204253A (fr) |
FR (1) | FR3081518B1 (fr) |
PT (1) | PT3803118T (fr) |
WO (1) | WO2019229339A1 (fr) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2916880A (en) * | 1956-09-28 | 1959-12-15 | Sundstrand Corp | Drive for refrigeration systems or the like |
US5169295A (en) * | 1991-09-17 | 1992-12-08 | Tren.Fuels, Inc. | Method and apparatus for compressing gases with a liquid system |
DE4322210B4 (de) * | 1993-07-03 | 2006-06-14 | Wabco Gmbh & Co.Ohg | Einrichtung zum Erzeugen von Druckgas |
US5454408A (en) * | 1993-08-11 | 1995-10-03 | Thermo Power Corporation | Variable-volume storage and dispensing apparatus for compressed natural gas |
US5863186A (en) * | 1996-10-15 | 1999-01-26 | Green; John S. | Method for compressing gases using a multi-stage hydraulically-driven compressor |
US20020068929A1 (en) * | 2000-10-24 | 2002-06-06 | Roni Zvuloni | Apparatus and method for compressing a gas, and cryosurgery system and method utilizing same |
US8387375B2 (en) * | 2011-11-11 | 2013-03-05 | General Compression, Inc. | Systems and methods for optimizing thermal efficiency of a compressed air energy storage system |
US20150247493A1 (en) * | 2014-02-28 | 2015-09-03 | Schlumberger Technology Corporation | High pressure transfer motor-pump |
-
2018
- 2018-05-28 FR FR1854530A patent/FR3081518B1/fr active Active
-
2019
- 2019-05-24 WO PCT/FR2019/051201 patent/WO2019229339A1/fr unknown
- 2019-05-24 CN CN201980036393.2A patent/CN112204253A/zh active Pending
- 2019-05-24 US US17/059,472 patent/US20210207591A1/en not_active Abandoned
- 2019-05-24 PT PT197428279T patent/PT3803118T/pt unknown
- 2019-05-24 EP EP19742827.9A patent/EP3803118B1/fr active Active
Also Published As
Publication number | Publication date |
---|---|
FR3081518A1 (fr) | 2019-11-29 |
CN112204253A (zh) | 2021-01-08 |
EP3803118B1 (fr) | 2023-02-08 |
WO2019229339A1 (fr) | 2019-12-05 |
PT3803118T (pt) | 2023-05-09 |
FR3081518B1 (fr) | 2022-06-24 |
US20210207591A1 (en) | 2021-07-08 |
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