US20070258828A1 - Method and Device for Compressing a Gaseous Medium - Google Patents
Method and Device for Compressing a Gaseous Medium Download PDFInfo
- Publication number
- US20070258828A1 US20070258828A1 US11/575,956 US57595605A US2007258828A1 US 20070258828 A1 US20070258828 A1 US 20070258828A1 US 57595605 A US57595605 A US 57595605A US 2007258828 A1 US2007258828 A1 US 2007258828A1
- Authority
- US
- United States
- Prior art keywords
- fluid
- gaseous medium
- cylinder
- compressed
- cylinders
- 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.)
- Abandoned
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F1/00—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped
- F04F1/06—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped the fluid medium acting on the surface of the liquid to be pumped
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F1/00—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped
- F04F1/06—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped the fluid medium acting on the surface of the liquid to be pumped
- F04F1/10—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped the fluid medium acting on the surface of the liquid to be pumped of multiple type, e.g. with two or more units in parallel
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/077—Ionic Liquids
Definitions
- the invention relates to a method for compressing a gaseous medium, specifically hydrogen.
- the invention further relates to a device for compressing a gaseous medium, specifically hydrogen.
- reciprocating piston compressors or reciprocating piston compressor systems are normally used at the present time.
- Reciprocating piston compressors require appropriate sealing systems in order to keep the medium to be compressed separate from the medium driving the piston, for example hydraulic oil.
- Generic methods and devices of a generic kind are used, for example, in natural gas compressor stations such as are found in natural gas filling stations.
- the object of the present invention is to specify a method and a device of a generic kind for compressing a gaseous medium, specifically hydrogen, which avoid the aforementioned disadvantages.
- this object is achieved through the compression of the gaseous medium by a fluid, wherein a fluid is used in which the gaseous medium is not soluble and/or which can be separated residue-free.
- the fluid is a fluid in which the gaseous medium to be compressed is not soluble and/or which can be separated residue-free from the gaseous medium.
- the invention makes it possible to dispense with a piston and any (piston) sealing systems in the compression of a gaseous medium. This is managed by achieving compression of the gaseous medium to be compressed by way of a variable column of fluid inside a cylinder.
- the pistons used previously which consist of a solid material, are replaced by a incompressible fluid, or column of fluid. Through an upward and downward movement of the column of fluid—similar to the upward and downward motion of a piston—the gaseous medium to be compressed is drawn in and compressed.
- a fluid is preferably selected in which the gaseous medium to be compressed is not soluble and which can be separated residue-free from the gaseous medium.
- an ionic fluid, a high-boiling hydraulic oil or fluids which have a very low vapor pressure as for example, vacuum pump oils, molten salts and metals with a low melting point, or fluids which have a gas solubility of less than 10 ⁇ 4 mol/l bar are used as fluid.
- Ionic fluids are low-boiling, organic salts with melting points between 100 and ⁇ 90° C., where most of the known ionic fluids are already present in liquid form at room temperature. In contrast to conventional molecular fluids, ionic fluids are completely ionic and thus reveal new and unusual properties. Ionic fluids are comparatively easily adaptable in their properties to given technical problems as a result of the variation in the structure of anion and/or cation and the variation in their combinations. For this reason they are frequently also described as “designer solvents.” With conventional molecular fluids on the other hand, only a variation in the structure is possible.
- ionic fluids In contrast to conventional molecular fluids, ionic fluids have the additional advantage that they possess no measurable vapor pressure. This means that—as long as their decomposition temperature is not reached—they do not boil off to the slightest degree, even in a total vacuum. From this result their properties of non-flammability and environmental friendliness since, as a result, ionic fluids cannot reach the atmosphere.
- the melting points of known ionic fluids are by definition below 100° C.
- ionic fluids have very high thermal stability. Their decomposition points are frequently above 400° C. In the case of ionic fluids, their density and mixing characteristics with other fluids can be affected, or adjusted, through the choice of ions. Ionic fluids have the additional advantage that they are electrically conductive and as a result can prevent static electrical charges—which represent a potential hazard.
- Ionic fluids have the advantage that it is possible to separate them completely from the compressed medium with a comparatively small expenditure for equipment.
- the drawing shows a potential embodiment of the invention in which compression takes place in two separate cylinders Z 1 and Z 2 .
- compression can be carried out in only one or also in more than two cylinders.
- the gaseous medium to be compressed is brought to cylinders Z 1 and Z 2 through the lines 1 , 1 ′ and 1 ′′.
- Inlet valves a and b are located in the aforementioned lines.
- the compressed gaseous medium is drawn off from cylinders Z 1 and Z 2 through the discharge lines 2 ′ and 2 ′′ in which valves c and d are similarly located.
- the compressed gaseous medium is freed in a separating device A of any fluid which may have been entrained from cylinders Z 1 and Z 2 , and which will be looked at more closely in what follows, and is then taken by way of line 2 to be used further and/or to interim storage.
- a suitable fluid D is provided inside cylinders Z 1 and Z 2 which serves to compress the gaseous medium.
- Cylinders Z 1 and Z 2 are connected by way of lines 3 to 6 and hydraulic pump X which is driven by an electric motor M.
- the fluid levels D in the cylinders Z 1 and Z 2 are varied by means of the hydraulic pump X such that one of the cylinders draws in the medium to be compressed while simultaneously, or essentially simultaneously, the gaseous medium is compressed in the other cylinder.
- an axial piston pump with swash plate drive is used for this, where transfer volume and/or direction can be changed through a simple adjustment of the swash plate.
- the invention has the further advantage that the (compression) heat created during compression can be removed at least partially by way of the fluid D.
- heat exchangers, or radiators, K 1 and K 2 are provided through which the heat created in the cylinders during compression can be discharged to the environment and/or another suitable medium.
- the heat exchangers, or radiators, K 1 and K 2 isothermal, single-stage compression can be realized.
- Valves e or g are located between the radiators K 1 and K 2 and the hydraulic pump X; the effect of these so-called stationary valves is that no system pressure is present at the hydraulic pump X when it is not running.
- heat exchangers E 1 or E 2 can be located in the cylinders Z 1 and Z 2 .
- cooling of the cylinder chamber can only be implemented from outside since the moving piston inside the cylinder does not permit the provision of a heat exchanger.
- the heat generated during compression has therefore been given off by the compressor or cylinder outer jacket to the cooling medium (air, water, coolant, etc.). Because of this fact, compression cannot normally be carried out isothermally, which results in corresponding high compression energy.
- heat exchanger is understood to mean any designs for heat exchangers—designated as “active heat exchanger” in what follows—and thermal reservoirs—designated as “passive heat exchanger” in what follows.
- the aforementioned advantageous embodiment of the device in accordance with the invention allows a substantial reduction in the required compression energy and thereby approximately isothermal compression. Furthermore, lower gas exit temperatures can be realized, and a reduction in the thermal load on the compressor valves can be achieved.
- the fluid coming from the cylinders Z 1 and Z 2 and separated from the compressed medium in the separating device A is taken by way of line 9 , in which a shutoff valve i is located, to an optionally provided interim storage tank S. From here, the fluid can be taken according to need by way of the lines 7 and 8 and the two shutoff valves f and h to the cylinders Z 1 and/or Z 2 .
- the replenishing of fluid required for compression takes place during a suction stroke.
- the embodiment of the method for compressing a gaseous medium described previously creates an opportunity for filling fluid in which the requirements described previously can be satisfied.
- the time for replenishing fluid required for compression should be guided by the current power consumption of the system; preferably fluid replenishment should take place during or close to a power minimum.
- the system, or the drive pump has sufficient power reserves available which can be used for replenishing the fluid.
- the fluid D to be replenished is fed into the appropriate cylinder, Z 1 or Z 2 respectively, by way of line 10 , which has a feed pump P, during a suction stroke.
- line 10 which has a feed pump P
- replenishment does not take place in the immediate proximity of the reversal point since then the danger exists that fluid D might possibly escape from the corresponding cylinder Z 1 or Z 2 by way of the pressure line 2 ′ or 2 ′′.
- the separation device A which serves to separate fluid entrained from the cylinders Z 1 and Z 2 would have to be dimensioned correspondingly larger. Adding fluid during the suction stroke also minimizes the energy requirements of the feed pump P.
- Fluid loss is detected by measuring the deviations of the fluid levels in cylinders Z 1 and Z 2 from a reference value which is usually determined at the beginning of the compression process.
- the fluid is exposed to an electrical field.
- means for generating an electrical field in the cylinder or cylinders are to be provided on the device side.
- ionic fluids come into direct contact with other media (gases, fluids, etc.)
- the result can be intermixing at the interface and formation of a two-phase mixture.
- a two-phase mixture can arise, for example, inside the cylinder or cylinders at the interface between ionic fluids and the medium to be compressed.
- natural force fields such as gravitation, Coreolis force, etc.
- an electrical field By means of the embodiments of the method in accordance with the invention described previously, or the device in accordance with the invention, natural force fields such as gravitation, Coreolis force, etc., can be intensified by an electrical field.
- Influencing ionic fluids by means of an electrical field allows an increase in acceleration at the reversal points of the pistonless compressor without increased risk of phase intermixing. Furthermore, a clean and reliable separation of ionic fluids from a two-phase mixture is also possible when the differences in density between the ionic fluid and the medium to be compressed are comparatively minor.
- embodiments of the method in accordance with the invention and the device in accordance with the invention are realizable for which only one cylinder or three or more cylinders are provided. While continuous delivery of the compressed medium with respect to compression pressure is not possible with only one cylinder, such often desirable delivery of the compressed medium with two or more cylinders is possible.
- the invention is suitable for compressing gaseous media up to currently attainable pressures of 1000 bar. It should be emphasized that in principle higher pressures of any type are attainable.
- the invention further makes possible compression to maximum pressure with only a single compression stage.
- the transfer volume can be varied as desired. Particularly with respect to the compression of high purity media, the invention creates an economical opportunity for compressing such media as well to very high pressures.
Abstract
A method and device for compressing a gaseous medium, specifically hydrogen, is disclosed. Compression of the gaseous medium takes place by way of a fluid, where a fluid is used in which the gaseous medium is not soluble and/or can be separated residue-free from the gaseous medium. An ionic fluid, a high-boiling hydraulic oil, or a fluid which has a very low vapor pressure is used as the fluid.
Description
- This application claims the priority of International Application No. PCT/EP2005/008370, filed Aug. 2, 2005, and German Patent Document No. 10 2004 046 316.6, filed Sep. 24, 2004, the disclosures of which are expressly incorporated by reference herein.
- The invention relates to a method for compressing a gaseous medium, specifically hydrogen.
- The invention further relates to a device for compressing a gaseous medium, specifically hydrogen.
- In methods and devices of a generic kind for compressing a gaseous medium, reciprocating piston compressors or reciprocating piston compressor systems are normally used at the present time. Reciprocating piston compressors require appropriate sealing systems in order to keep the medium to be compressed separate from the medium driving the piston, for example hydraulic oil.
- Particularly in the compression of hydrogen, natural gas and high purity media, or if contamination of the medium to be compressed by the drive medium must be prevented and/or is undesirable for specific reasons, precisely fitting cylinders with pistons and correspondingly effective dynamic sealing systems are required; as a rule, these systems result in high production and maintenance costs. Often, even more cost-intensive compression variants, such as diaphragm compressors, oil-free reciprocating piston compressors, etc., are brought in for such applications.
- Generic methods and devices of a generic kind are used, for example, in natural gas compressor stations such as are found in natural gas filling stations.
- The object of the present invention is to specify a method and a device of a generic kind for compressing a gaseous medium, specifically hydrogen, which avoid the aforementioned disadvantages.
- Concerning the method, this object is achieved through the compression of the gaseous medium by a fluid, wherein a fluid is used in which the gaseous medium is not soluble and/or which can be separated residue-free.
- The characteristics of the device in accordance with the invention for compressing a gaseous medium are that it comprises
- a) one or more cylinders,
- b) supply and discharge lines which serve to supply the gaseous medium to be compressed to or remove it from the cylinder or cylinders,
- c) at least one fluid line per cylinder which serves to supply and remove the fluid compressing the gaseous medium in the cylinders, and
- d) means to change the quantity of fluid in the cylinder or cylinders,
- e) wherein the fluid is a fluid in which the gaseous medium to be compressed is not soluble and/or which can be separated residue-free from the gaseous medium.
- The invention makes it possible to dispense with a piston and any (piston) sealing systems in the compression of a gaseous medium. This is managed by achieving compression of the gaseous medium to be compressed by way of a variable column of fluid inside a cylinder. The pistons used previously, which consist of a solid material, are replaced by a incompressible fluid, or column of fluid. Through an upward and downward movement of the column of fluid—similar to the upward and downward motion of a piston—the gaseous medium to be compressed is drawn in and compressed.
- In order to achieve optimal compression even of high purity media which must not be contaminated by the fluid being used, a fluid is preferably selected in which the gaseous medium to be compressed is not soluble and which can be separated residue-free from the gaseous medium.
- In an advantageous way, an ionic fluid, a high-boiling hydraulic oil or fluids which have a very low vapor pressure, as for example, vacuum pump oils, molten salts and metals with a low melting point, or fluids which have a gas solubility of less than 10−4 mol/l bar are used as fluid.
- Ionic fluids are low-boiling, organic salts with melting points between 100 and −90° C., where most of the known ionic fluids are already present in liquid form at room temperature. In contrast to conventional molecular fluids, ionic fluids are completely ionic and thus reveal new and unusual properties. Ionic fluids are comparatively easily adaptable in their properties to given technical problems as a result of the variation in the structure of anion and/or cation and the variation in their combinations. For this reason they are frequently also described as “designer solvents.” With conventional molecular fluids on the other hand, only a variation in the structure is possible.
- In contrast to conventional molecular fluids, ionic fluids have the additional advantage that they possess no measurable vapor pressure. This means that—as long as their decomposition temperature is not reached—they do not boil off to the slightest degree, even in a total vacuum. From this result their properties of non-flammability and environmental friendliness since, as a result, ionic fluids cannot reach the atmosphere.
- As already mentioned, the melting points of known ionic fluids are by definition below 100° C. The liquidus range—the range between melting point and thermal decomposition—is usually 400° C. or higher.
- In addition, ionic fluids have very high thermal stability. Their decomposition points are frequently above 400° C. In the case of ionic fluids, their density and mixing characteristics with other fluids can be affected, or adjusted, through the choice of ions. Ionic fluids have the additional advantage that they are electrically conductive and as a result can prevent static electrical charges—which represent a potential hazard.
- Ionic fluids have the advantage that it is possible to separate them completely from the compressed medium with a comparatively small expenditure for equipment.
- Entertainment of the ionic fluid by the compressed medium is henceforth not possible since ionic fluids—as mentioned previously—have no vapor pressure.
- In the case of fluids with high gas solubility, there is firstly undesirable cavitation of the drive pump(s) and secondly undesirable entrainment of gas into the (interim) fluid storage tank which is normally provided. Through the use of a fluid which has a gas solubility of less than 10−4 mol/l bar, these problems can be avoided. As a result, the life of the drive pump used is extended; further, the safety-related problems accompanying the gas formation, or entrainment, are avoided.
- The method in accordance with the invention, the device in accordance with the invention and further embodiments of same are explained in more detail using the embodiment shown in the drawing.
- The drawing shows a potential embodiment of the invention in which compression takes place in two separate cylinders Z1 and Z2. Alternatively, compression can be carried out in only one or also in more than two cylinders.
- The gaseous medium to be compressed is brought to cylinders Z1 and Z2 through the
lines discharge lines 2′ and 2″ in which valves c and d are similarly located. - The compressed gaseous medium is freed in a separating device A of any fluid which may have been entrained from cylinders Z1 and Z2, and which will be looked at more closely in what follows, and is then taken by way of
line 2 to be used further and/or to interim storage. - A suitable fluid D is provided inside cylinders Z1 and Z2 which serves to compress the gaseous medium. Cylinders Z1 and Z2 are connected by way of
lines 3 to 6 and hydraulic pump X which is driven by an electric motor M. - The fluid levels D in the cylinders Z1 and Z2 are varied by means of the hydraulic pump X such that one of the cylinders draws in the medium to be compressed while simultaneously, or essentially simultaneously, the gaseous medium is compressed in the other cylinder. Preferably an axial piston pump with swash plate drive is used for this, where transfer volume and/or direction can be changed through a simple adjustment of the swash plate.
- Compared with the prior art, the invention has the further advantage that the (compression) heat created during compression can be removed at least partially by way of the fluid D. For this, as shown in the drawing, heat exchangers, or radiators, K1 and K2, are provided through which the heat created in the cylinders during compression can be discharged to the environment and/or another suitable medium. In the case of complete removal of compression heat through the fluid D and the heat exchangers, or radiators, K1 and K2, isothermal, single-stage compression can be realized.
- Valves e or g are located between the radiators K1 and K2 and the hydraulic pump X; the effect of these so-called stationary valves is that no system pressure is present at the hydraulic pump X when it is not running.
- In accordance with an advantageous embodiment of the device in accordance with the invention, heat exchangers E1 or E2 can be located in the cylinders Z1 and Z2.
- In the compressor or cylinder designs reckoned among the prior art, cooling of the cylinder chamber can only be implemented from outside since the moving piston inside the cylinder does not permit the provision of a heat exchanger. Until now, the heat generated during compression has therefore been given off by the compressor or cylinder outer jacket to the cooling medium (air, water, coolant, etc.). Because of this fact, compression cannot normally be carried out isothermally, which results in corresponding high compression energy.
- By means of the aforementioned advantageous embodiment of the device in accordance with the invention, internal cooling can now be implemented, the consequence of which is that the disadvantages of the prior art can be avoided.
- The term “heat exchanger” is understood to mean any designs for heat exchangers—designated as “active heat exchanger” in what follows—and thermal reservoirs—designated as “passive heat exchanger” in what follows.
- While the heat arising during compression is removed by means of a suitable cooling medium in the case of an active heat exchanger, this heat remains inside the compressor or cylinder chamber in the case of a passive heat exchanger. In the latter case, the compression heat is in fact extracted from the medium to be compressed, but is then given off to the fluid D which carries away the compression heat—as explained above. Cooling ribs, fins, etc., and/or fillers such as metal spheres, plates, etc., can be used as passive heat exchangers, or thermal reservoirs respectively.
- The aforementioned advantageous embodiment of the device in accordance with the invention allows a substantial reduction in the required compression energy and thereby approximately isothermal compression. Furthermore, lower gas exit temperatures can be realized, and a reduction in the thermal load on the compressor valves can be achieved.
- The fluid coming from the cylinders Z1 and Z2 and separated from the compressed medium in the separating device A is taken by way of
line 9, in which a shutoff valve i is located, to an optionally provided interim storage tank S. From here, the fluid can be taken according to need by way of thelines - In accordance with a further advantageous embodiment of the method in accordance with the invention for compressing a gaseous medium, the replenishing of fluid required for compression takes place during a suction stroke.
- There is a loss of fluid D particularly at the drive, or hydraulic, pump needed for compression. In order to compensate for these losses, it is therefore necessary to replenish or fill the system with new fluid when fluid falls below a minimum level. Care must be taken that there is no interaction between the pressure and suction sides while fluid is being filled. Furthermore, care must be taken that the desired or maximum energy requirement of the system, which must be defined by the compression process, is not (unnecessarily) increased.
- The embodiment of the method for compressing a gaseous medium described previously creates an opportunity for filling fluid in which the requirements described previously can be satisfied.
- As a matter of course, the time for replenishing fluid required for compression should be guided by the current power consumption of the system; preferably fluid replenishment should take place during or close to a power minimum. At this time, the system, or the drive pump, has sufficient power reserves available which can be used for replenishing the fluid.
- Preferably the fluid D to be replenished is fed into the appropriate cylinder, Z1 or Z2 respectively, by way of
line 10, which has a feed pump P, during a suction stroke. However, care must be taken that replenishment does not take place in the immediate proximity of the reversal point since then the danger exists that fluid D might possibly escape from the corresponding cylinder Z1 or Z2 by way of thepressure line 2′ or 2″. The consequence would be that the separation device A which serves to separate fluid entrained from the cylinders Z1 and Z2 would have to be dimensioned correspondingly larger. Adding fluid during the suction stroke also minimizes the energy requirements of the feed pump P. - Fluid loss is detected by measuring the deviations of the fluid levels in cylinders Z1 and Z2 from a reference value which is usually determined at the beginning of the compression process.
- In accordance with a further advantageous embodiment of the method for compressing a gaseous medium in accordance with the invention, the fluid is exposed to an electrical field. For this purpose, means for generating an electrical field in the cylinder or cylinders are to be provided on the device side.
- Particularly when ionic fluids come into direct contact with other media (gases, fluids, etc.), the result can be intermixing at the interface and formation of a two-phase mixture. In the present case, such a two-phase mixture can arise, for example, inside the cylinder or cylinders at the interface between ionic fluids and the medium to be compressed.
- For a clean and reliable separation of ionic fluid and the medium to be compressed, an adequate difference in density and a matching gravitational field—which in the present case is generated by the acceleration of gravity—are required. The maximum reversal acceleration inside the cylinder is defined thereby. In the Earth's gravitational field, the consequence is that a maximum acceleration of 7 m/s2 can be realized. Acceleration of this nature is, however, frequently not sufficient to reseparate completely the two-phase mixture that has resulted.
- By means of the embodiments of the method in accordance with the invention described previously, or the device in accordance with the invention, natural force fields such as gravitation, Coreolis force, etc., can be intensified by an electrical field.
- These embodiments can be realized with all ionic fluids which have a corresponding dipole moment and/or corresponding electrical conductivity.
- Influencing ionic fluids by means of an electrical field allows an increase in acceleration at the reversal points of the pistonless compressor without increased risk of phase intermixing. Furthermore, a clean and reliable separation of ionic fluids from a two-phase mixture is also possible when the differences in density between the ionic fluid and the medium to be compressed are comparatively minor. In addition to the embodiment of the invention explained using the drawing, embodiments of the method in accordance with the invention and the device in accordance with the invention are realizable for which only one cylinder or three or more cylinders are provided. While continuous delivery of the compressed medium with respect to compression pressure is not possible with only one cylinder, such often desirable delivery of the compressed medium with two or more cylinders is possible.
- Considerable savings in investment costs are achieved by dispensing with solid pistons and dynamic sealing systems. In addition, maintenance costs are reduced since the maintenance intervals, compared with those of conventional compressors, are extended.
- The invention is suitable for compressing gaseous media up to currently attainable pressures of 1000 bar. It should be emphasized that in principle higher pressures of any type are attainable. The invention further makes possible compression to maximum pressure with only a single compression stage. Furthermore, the transfer volume can be varied as desired. Particularly with respect to the compression of high purity media, the invention creates an economical opportunity for compressing such media as well to very high pressures.
Claims (21)
1-16. (canceled)
17. A method for compressing a gaseous medium, wherein a compression of the gaseous medium is carried out by a fluid, wherein the gaseous medium is not soluble in the fluid and/or the fluid is separable residue-free from the gaseous medium.
18. The method according to claim 17 , wherein the gaseous medium is hydrogen.
19. The method according to claim 17 , wherein an ionic fluid, a high-boiling hydraulic oil, a fluid which has very low vapor pressure, or a fluid which has a gas solubility of less than 10−4 mol/l bar, is used as the fluid.
20. The method according to claim 17 , wherein compression heat is at least partially removed by means of the fluid.
21. The method according to claim 17 , wherein a portion of the fluid, entrained by the gaseous medium when compressed, is separated from the compressed gaseous medium.
22. The method according to claim 21 , wherein the portion of the fluid separated from the compressed gaseous medium is returned again for the compression, wherein the separated fluid is storable before it is returned.
23. The method according to claim 17 , wherein the compression allows compression of the gaseous medium by a factor of 1000.
24. The method according to claim 17 , wherein a replenishment of fluid required for compression takes place during a suction stroke.
25. The method according to claim 17 , wherein the fluid is exposed to an electrical field.
26. A device for compressing a gaseous medium, comprising:
one or more cylinders;
supply and discharge lines which supply the gaseous medium to be compressed to, and discharge a compressed gaseous medium from, the cylinder or cylinders, respectively;
at least one fluid line per cylinder which supplies and discharges a fluid compressing the gaseous medium in the cylinder or cylinders; and
means for changing a volume of the fluid in the cylinder or cylinders;
wherein the gaseous medium is not soluble in the fluid and/or the fluid is separable residue-free from the gaseous medium.
27. The device according to claim 26 , wherein the gaseous medium is hydrogen.
28. The device according to claim 26 , wherein the means for changing the volume of the fluid in the cylinder or cylinders is a fluid pump, a hydraulic pump, an axial piston pump, a slide pump, or a gear pump.
29. The device according to claim 26 , wherein a heat exchanger which removes compression heat is assigned to the fluid line provided per cylinder.
30. The device according to claim 26 , wherein at least one separation device is located in the discharge line for the compressed gaseous medium, wherein the separation device separates a portion of the fluid, entrained with the compressed gaseous medium, from the compressed gaseous medium.
31. The device according to claim 30 , wherein the separation device is connected in a circulation loop to at least one of the cylinders.
32. The device according to claim 30 , wherein a fluid storage device is allocated to the separation device.
33. The device according to claim 26 , wherein a heat exchanger is located within the cylinder or cylinders.
34. The device according to claim 26 , wherein means to generate an electrical field in the cylinder or cylinders is provided.
35. A method for compressing a gaseous medium, comprising the steps of:
supplying the gaseous medium to a cylinder;
supplying a fluid to the cylinder; and
compressing the gaseous medium in the cylinder by the fluid in the cylinder.
36. A device for compressing a gaseous medium, comprising:
a cylinder;
a gaseous medium supply line coupled to the cylinder, wherein the gaseous medium supply line supplies the gaseous medium to the cylinder;
a fluid supply line coupled to the cylinder, wherein the fluid supply line supplies a fluid to the cylinder;
wherein the gaseous medium supplied to the cylinder is compressed by the fluid supplied to the cylinder; and
a compressed gaseous medium discharge line coupled to the cylinder, wherein the compressed gaseous medium discharge line discharges the compressed gaseous medium from the cylinder.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004046316.6 | 2004-09-24 | ||
DE102004046316A DE102004046316A1 (en) | 2004-09-24 | 2004-09-24 | Method and apparatus for compressing a gaseous medium |
PCT/EP2005/008370 WO2006034748A1 (en) | 2004-09-24 | 2005-08-02 | Method and device for compressing a gaseous medium |
Publications (1)
Publication Number | Publication Date |
---|---|
US20070258828A1 true US20070258828A1 (en) | 2007-11-08 |
Family
ID=34978927
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/575,956 Abandoned US20070258828A1 (en) | 2004-09-24 | 2005-08-02 | Method and Device for Compressing a Gaseous Medium |
Country Status (11)
Country | Link |
---|---|
US (1) | US20070258828A1 (en) |
EP (1) | EP1792087B1 (en) |
JP (1) | JP4986161B2 (en) |
KR (1) | KR20070057813A (en) |
CN (1) | CN101023272B (en) |
AT (1) | ATE530772T1 (en) |
AU (1) | AU2005289219A1 (en) |
CA (1) | CA2581280A1 (en) |
DE (1) | DE102004046316A1 (en) |
WO (1) | WO2006034748A1 (en) |
ZA (1) | ZA200702362B (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080038123A1 (en) * | 2005-02-16 | 2008-02-14 | Claus Hilgers | Processing and/or operating machine comprising an ionic liquid as the operating liquid |
US20110052430A1 (en) * | 2006-12-18 | 2011-03-03 | Andreas Hofer Hochdrucktechnik Gmbh | Fluid machine |
US20110110796A1 (en) * | 2008-07-11 | 2011-05-12 | Siemens Aktiengesellschaft | Water jet type pump and method for operation thereof |
US20130118362A1 (en) * | 2011-05-13 | 2013-05-16 | Robert Adler | Compression of a water-saturated medium |
US8667788B2 (en) | 2010-04-09 | 2014-03-11 | Shipstone Corporation | System and method for energy storage and retrieval |
ITRM20130313A1 (en) * | 2013-05-30 | 2014-12-01 | Gia E Lo Sviluppo Economico Sostenibile Enea | HYDRODYNAMIC COMPRESSOR FOR COMBUSTIBLE AND DETONING GASES |
CN104728083A (en) * | 2015-01-23 | 2015-06-24 | 西南科技大学 | Compressor |
WO2016094349A1 (en) * | 2014-12-08 | 2016-06-16 | Saudi Arabian Oil Company | Multiphase production boost method and system |
US20180283406A1 (en) * | 2015-10-08 | 2018-10-04 | Ortec Expansion | Method and device for pumping a product by suction |
CN113623036A (en) * | 2021-09-14 | 2021-11-09 | 西安热工研究院有限公司 | System and method for raising steam pressure |
WO2023094711A1 (en) * | 2021-11-29 | 2023-06-01 | Catagen Limited | Method of compressing hydrogen gas, hydrogen gas compressor system and hydrogen gas storage unit |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT501793A1 (en) * | 2005-05-06 | 2006-11-15 | Linde Ag | LIQUID FOR COMPRISING A GASIFIED MEDIUM AND USE THEREOF |
DE102006014314A1 (en) * | 2006-03-28 | 2007-10-04 | Linde Ag | Piston-less compressor operating method, involves moving fluid column up and down in cylinder of piston-less compressor, and allowing overcharging of portions of fluid e.g. expensive ionic fluid, in discharge pipe during compression cycle |
DE102006040785A1 (en) * | 2006-08-31 | 2008-03-06 | Linde Ag | Pistonless compressor |
DE102006042918A1 (en) * | 2006-09-13 | 2008-03-27 | Linde Ag | Pistonless compressor |
DE102006060061A1 (en) * | 2006-12-19 | 2008-06-26 | Linde Ag | Sealing by ionic liquids |
WO2009034421A1 (en) * | 2007-09-13 | 2009-03-19 | Ecole polytechnique fédérale de Lausanne (EPFL) | A multistage hydro-pneumatic motor-compressor |
DE102007049458B4 (en) * | 2007-10-16 | 2017-04-13 | Man Truck & Bus Ag | Compressed gas system and method for storing a gas |
US8061392B2 (en) * | 2008-12-23 | 2011-11-22 | Texaco Inc. | Variable volume hydrogen storage |
FR2945327A1 (en) * | 2009-05-07 | 2010-11-12 | Ecoren | METHOD AND EQUIPMENT FOR MECHANICAL ENERGY TRANSMISSION BY COMPRESSION AND / OR QUASI-ISOTHERMAL DETENTION OF A GAS |
DE102009020925A1 (en) * | 2009-05-12 | 2010-11-18 | Linde Aktiengesellschaft | Compressor with piston dummy |
US8096117B2 (en) * | 2009-05-22 | 2012-01-17 | General Compression, Inc. | Compressor and/or expander device |
JP2013515945A (en) * | 2009-12-24 | 2013-05-09 | ジェネラル コンプレッション インコーポレイテッド | Method and apparatus for optimizing heat transfer in compression and / or expansion devices |
US9611868B2 (en) | 2010-04-09 | 2017-04-04 | Shipstone Corporation | System and method for energy storage and retrieval |
DE102011007639A1 (en) | 2010-04-23 | 2011-10-27 | Basf Se | Mechanical processing of workpieces with a high pressure jet comprising a liquid composition, which contains an ionic liquid |
JP5766045B2 (en) * | 2011-06-29 | 2015-08-19 | 日東精工株式会社 | Gas injection device and gas-liquid contact device |
DE102013205027A1 (en) | 2013-03-21 | 2014-09-25 | Siemens Aktiengesellschaft | Sealing device and turbo compressor with such a sealing device |
CN103308446B (en) * | 2013-05-31 | 2016-01-20 | 重庆大学 | Based on the fluid compressible system safety testing device of corrugated tube |
WO2017088065A1 (en) * | 2015-11-25 | 2017-06-01 | Isocurrent Energy Incorporated | Variable pressure vessel |
KR101668672B1 (en) | 2016-08-01 | 2016-10-24 | 최상배 | Liquid pressed gas compressor having pressure-volume converting device and torque converting device |
DE102016220345A1 (en) | 2016-10-18 | 2018-04-19 | Bayerische Motoren Werke Aktiengesellschaft | Pressure vessel system and resource supply system for a motor vehicle |
CN106761986B (en) * | 2016-12-27 | 2019-01-15 | 北京交通大学 | A kind of device and its application method of the conversion of gas at normal temperature energy |
DE102017006335A1 (en) * | 2017-07-04 | 2019-01-10 | Linde Aktiengesellschaft | ionic liquid with dry lubricant |
DE102017007921A1 (en) * | 2017-08-22 | 2019-02-28 | Linde Aktiengesellschaft | Method for operating a compressor and compressor |
PL240516B1 (en) * | 2018-01-09 | 2022-04-19 | Dobrianski Jurij | Steam engine |
DE102018003356A1 (en) * | 2018-04-19 | 2019-10-24 | Michael Semakin | compressor |
DE102019129495B3 (en) * | 2019-10-31 | 2021-04-15 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Compressor arrangement, heat pump arrangement and method for operating the compressor arrangement |
WO2021097505A1 (en) | 2019-11-21 | 2021-05-27 | Eeg Elements Energy Gmbh | Compressor |
CN111561430A (en) * | 2020-04-23 | 2020-08-21 | 北京航空航天大学 | Isothermal expansion device based on gas dissolution and gas-liquid conversion and use method |
DE102020207827A1 (en) | 2020-06-24 | 2021-12-30 | Argo Gmbh | Filling device for filling storage containers with compressed hydrogen, filling station having the same and method for filling a storage container |
CN112442405A (en) * | 2020-12-15 | 2021-03-05 | 苏州金宏气体股份有限公司 | Ionic liquid composition as hydraulic hydrogenation working medium |
CN112408318B (en) * | 2020-12-15 | 2022-09-23 | 苏州金宏气体股份有限公司 | Ionic liquid composition for compressing hydrogen |
DE102021204586A1 (en) | 2021-05-06 | 2022-11-10 | Robert Bosch Gesellschaft mit beschränkter Haftung | Device for compressing a gas and method for filling a tank with such a device |
KR102561244B1 (en) * | 2021-07-26 | 2023-08-01 | 한국기계연구원 | Overheat protectable hydrogen charging system and method for charging hydrogen using the same |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4087208A (en) * | 1976-06-08 | 1978-05-02 | Mitsubishi Jukogyo Kabushiki Kaisha | Method for compressing mixed gas consisting of combustible gas and air |
US4515516A (en) * | 1981-09-30 | 1985-05-07 | Champion, Perrine & Associates | Method and apparatus for compressing gases |
US4566860A (en) * | 1984-03-28 | 1986-01-28 | Ben Cowan | Liquid piston compression systems for compressing steam |
US5073090A (en) * | 1990-02-12 | 1991-12-17 | Cassidy Joseph C | Fluid piston compressor |
US5387089A (en) * | 1991-09-17 | 1995-02-07 | Tren Fuels, Inc. | Method and apparatus for compressing gases with a liquid system |
US6183206B1 (en) * | 1999-05-10 | 2001-02-06 | The United States Of America As Represented By The Secretary Of The Air Force | Magnetohydrodynamically-driven compressor |
US6371145B1 (en) * | 2000-08-04 | 2002-04-16 | Dresser-Rand Company | System and method for compressing a fluid |
US20020150479A1 (en) * | 2001-01-11 | 2002-10-17 | Keith Jansen | Method and apparatus for pressurizing gas |
US20030039554A1 (en) * | 2001-08-23 | 2003-02-27 | Igor Krasnov | Method and apparatus for filling a storage vessel with compressed gas |
US6579069B2 (en) * | 1999-06-16 | 2003-06-17 | Valery Grigorievich Tsegelsky | Method of compressing gaseous hydrocarbon-containing medium |
US6629826B2 (en) * | 2001-02-20 | 2003-10-07 | Korea Advanced Institute Of Science And Technology | Micropump driven by movement of liquid drop induced by continuous electrowetting |
US7488159B2 (en) * | 2004-06-25 | 2009-02-10 | Air Products And Chemicals, Inc. | Zero-clearance ultra-high-pressure gas compressor |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5243105A (en) * | 1975-10-02 | 1977-04-04 | Kido Kensetsu Kogyo Kk | Comoressed air generator |
JPS604800U (en) * | 1983-06-23 | 1985-01-14 | 石井 助 | hydraulic air compressor |
US5584664A (en) * | 1994-06-13 | 1996-12-17 | Elliott; Alvin B. | Hydraulic gas compressor and method for use |
JPH09144657A (en) * | 1995-11-23 | 1997-06-03 | Mitsubishi Heavy Ind Ltd | Air compressing device |
DE19848234A1 (en) * | 1998-10-20 | 2000-04-27 | Huels Infracor Gmbh | Compression of potentially explosive gases through injection of liquid into a common vessel |
CN1451887A (en) * | 2002-04-19 | 2003-10-29 | 杨志强 | Hydraulic gas compressor |
-
2004
- 2004-09-24 DE DE102004046316A patent/DE102004046316A1/en not_active Withdrawn
-
2005
- 2005-08-02 KR KR1020077004889A patent/KR20070057813A/en not_active Application Discontinuation
- 2005-08-02 US US11/575,956 patent/US20070258828A1/en not_active Abandoned
- 2005-08-02 CA CA002581280A patent/CA2581280A1/en not_active Abandoned
- 2005-08-02 AT AT05768562T patent/ATE530772T1/en active
- 2005-08-02 CN CN2005800319092A patent/CN101023272B/en not_active Expired - Fee Related
- 2005-08-02 AU AU2005289219A patent/AU2005289219A1/en not_active Abandoned
- 2005-08-02 WO PCT/EP2005/008370 patent/WO2006034748A1/en active Application Filing
- 2005-08-02 JP JP2007532789A patent/JP4986161B2/en not_active Expired - Fee Related
- 2005-08-02 EP EP05768562A patent/EP1792087B1/en not_active Not-in-force
-
2007
- 2007-03-22 ZA ZA200702362A patent/ZA200702362B/en unknown
Patent Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4087208A (en) * | 1976-06-08 | 1978-05-02 | Mitsubishi Jukogyo Kabushiki Kaisha | Method for compressing mixed gas consisting of combustible gas and air |
US4515516A (en) * | 1981-09-30 | 1985-05-07 | Champion, Perrine & Associates | Method and apparatus for compressing gases |
US4566860A (en) * | 1984-03-28 | 1986-01-28 | Ben Cowan | Liquid piston compression systems for compressing steam |
US5073090A (en) * | 1990-02-12 | 1991-12-17 | Cassidy Joseph C | Fluid piston compressor |
US5387089A (en) * | 1991-09-17 | 1995-02-07 | Tren Fuels, Inc. | Method and apparatus for compressing gases with a liquid system |
US6183206B1 (en) * | 1999-05-10 | 2001-02-06 | The United States Of America As Represented By The Secretary Of The Air Force | Magnetohydrodynamically-driven compressor |
US6579069B2 (en) * | 1999-06-16 | 2003-06-17 | Valery Grigorievich Tsegelsky | Method of compressing gaseous hydrocarbon-containing medium |
US20030206810A1 (en) * | 1999-06-16 | 2003-11-06 | Tsegelsky Valery Grigorievich | Method of compressing gaseous hydrocarbon-containing medium |
US6371145B1 (en) * | 2000-08-04 | 2002-04-16 | Dresser-Rand Company | System and method for compressing a fluid |
US20020150479A1 (en) * | 2001-01-11 | 2002-10-17 | Keith Jansen | Method and apparatus for pressurizing gas |
US6629826B2 (en) * | 2001-02-20 | 2003-10-07 | Korea Advanced Institute Of Science And Technology | Micropump driven by movement of liquid drop induced by continuous electrowetting |
US20030039554A1 (en) * | 2001-08-23 | 2003-02-27 | Igor Krasnov | Method and apparatus for filling a storage vessel with compressed gas |
US6652243B2 (en) * | 2001-08-23 | 2003-11-25 | Neogas Inc. | Method and apparatus for filling a storage vessel with compressed gas |
US7488159B2 (en) * | 2004-06-25 | 2009-02-10 | Air Products And Chemicals, Inc. | Zero-clearance ultra-high-pressure gas compressor |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080038123A1 (en) * | 2005-02-16 | 2008-02-14 | Claus Hilgers | Processing and/or operating machine comprising an ionic liquid as the operating liquid |
US20110052430A1 (en) * | 2006-12-18 | 2011-03-03 | Andreas Hofer Hochdrucktechnik Gmbh | Fluid machine |
US20110110796A1 (en) * | 2008-07-11 | 2011-05-12 | Siemens Aktiengesellschaft | Water jet type pump and method for operation thereof |
EP3147518A1 (en) | 2010-04-09 | 2017-03-29 | Daniel John Kenway | System and method for energy storage and retrieval |
US8667788B2 (en) | 2010-04-09 | 2014-03-11 | Shipstone Corporation | System and method for energy storage and retrieval |
US20130118362A1 (en) * | 2011-05-13 | 2013-05-16 | Robert Adler | Compression of a water-saturated medium |
US9162410B2 (en) * | 2011-05-13 | 2015-10-20 | Linde Aktiengesellschaft | Compression of a water-saturated medium |
ITRM20130313A1 (en) * | 2013-05-30 | 2014-12-01 | Gia E Lo Sviluppo Economico Sostenibile Enea | HYDRODYNAMIC COMPRESSOR FOR COMBUSTIBLE AND DETONING GASES |
WO2016094349A1 (en) * | 2014-12-08 | 2016-06-16 | Saudi Arabian Oil Company | Multiphase production boost method and system |
US10774822B2 (en) | 2014-12-08 | 2020-09-15 | Saudi Arabian Oil Company | Multiphase production boost method and system |
US10801482B2 (en) | 2014-12-08 | 2020-10-13 | Saudi Arabian Oil Company | Multiphase production boost method and system |
CN104728083A (en) * | 2015-01-23 | 2015-06-24 | 西南科技大学 | Compressor |
US20180283406A1 (en) * | 2015-10-08 | 2018-10-04 | Ortec Expansion | Method and device for pumping a product by suction |
CN113623036A (en) * | 2021-09-14 | 2021-11-09 | 西安热工研究院有限公司 | System and method for raising steam pressure |
WO2023094711A1 (en) * | 2021-11-29 | 2023-06-01 | Catagen Limited | Method of compressing hydrogen gas, hydrogen gas compressor system and hydrogen gas storage unit |
Also Published As
Publication number | Publication date |
---|---|
EP1792087A1 (en) | 2007-06-06 |
JP2008514844A (en) | 2008-05-08 |
AU2005289219A1 (en) | 2006-04-06 |
ZA200702362B (en) | 2008-08-27 |
ATE530772T1 (en) | 2011-11-15 |
CA2581280A1 (en) | 2006-04-06 |
JP4986161B2 (en) | 2012-07-25 |
KR20070057813A (en) | 2007-06-07 |
WO2006034748A1 (en) | 2006-04-06 |
CN101023272B (en) | 2012-06-27 |
DE102004046316A1 (en) | 2006-03-30 |
CN101023272A (en) | 2007-08-22 |
EP1792087B1 (en) | 2011-10-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20070258828A1 (en) | Method and Device for Compressing a Gaseous Medium | |
CA2510230C (en) | Zero-clearance ultra-high-pressure gas compressor | |
CN203809238U (en) | Cooling system for pumping system | |
US6065297A (en) | Liquid chiller with enhanced motor cooling and lubrication | |
AU746058B2 (en) | High pressure fuel supply system for natural gas vehicles | |
JP2002147344A (en) | Reciprocating pump for liquid and method for forcibly feeding liquid | |
EP2198161B1 (en) | Hermetic compressor | |
CN104645654A (en) | Distillation apparatus | |
EP0258255A1 (en) | Method of operating an oil-free rotary gas compressor. | |
WO1999035381A9 (en) | Compressed natural gas cylinder pump and reverse cascade fuel supply system | |
US3254845A (en) | Fluid power transfer apparatus | |
CN113266968A (en) | Liquid storage tank, refrigerant transfer device and refrigeration system | |
EP0048535A1 (en) | Apparatus and method for pumping hot, erosive slurry of coal solids in coal derived, water immiscible liquid | |
US10254023B2 (en) | Heat pipe anchor tubes for high side heat exchangers | |
CN211598986U (en) | Double-screw pump capable of idle running for long time | |
CN105065254A (en) | Plunger type fracturing pump and petroleum fracturing truck | |
CN204900232U (en) | Plunger type fracturing pump and oil fracturing unit truck | |
CN217735688U (en) | High-temperature high-pressure gas disposal device and permanent magnet frequency conversion two-stage compression air compressor | |
CN218207079U (en) | High oily screw vacuum pump of security | |
CN212962316U (en) | Evaporation return oil separation device and evaporation cooling type full liquid screw unit | |
JPH02146467A (en) | Aggregate of driving motor and compressur for cooling or heating pump circulating process | |
CN207539029U (en) | A kind of Quimby pump Bearing gear lubricating system | |
US202435A (en) | Improvement in hydraulic power-accumulators | |
CN1714243A (en) | Reciprocating compressor for refrigerator | |
JP2006057609A (en) | Reciprocating pump |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: LINDE AKTIENGESELLSCHAFT, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ADLER, ROBERT;SIEBERT, GEORG;REEL/FRAME:019062/0390;SIGNING DATES FROM 20070219 TO 20070223 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |