EP3337976A1 - Hubkolbenkompressor, nachrüstsatz für einen hubkolbenkompressor und verwendung einer verbindungsstange in einem hubkolbenkompressor - Google Patents
Hubkolbenkompressor, nachrüstsatz für einen hubkolbenkompressor und verwendung einer verbindungsstange in einem hubkolbenkompressorInfo
- Publication number
- EP3337976A1 EP3337976A1 EP15753040.3A EP15753040A EP3337976A1 EP 3337976 A1 EP3337976 A1 EP 3337976A1 EP 15753040 A EP15753040 A EP 15753040A EP 3337976 A1 EP3337976 A1 EP 3337976A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- reciprocating compressor
- piston
- connecting rod
- crosshead
- cylinder
- 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.)
- Withdrawn
Links
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
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/04—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
-
- 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
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/04—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B27/0404—Details, component parts specially adapted for 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
- F04B35/01—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 mechanical
-
- 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
- F04B39/0022—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 piston rods
-
- 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
- F04B39/0094—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 crankshaft
-
- 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
- F04B39/06—Cooling; Heating; Prevention of freezing
-
- 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
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/121—Casings
-
- 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
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/122—Cylinder block
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/10—Connection to driving members
- F16J1/12—Connection to driving members with piston-rods, e.g. rigid connections
Definitions
- the present invention relates to a reciprocating compressor, a retrofit kit for a reciprocating compressor and the use of a fixedly clamped connecting rod in a reciprocating compressor according to the preambles of the independent claims.
- a reciprocating compressor according to the Scotch-Yoke principle / Wienkurbel- schleifentama has become known.
- This piston compressor has in its housing a crankshaft which moves a yoke up and down. Between the yoke and a compression piston, a connecting rod is arranged.
- the connecting rod is open ⁇ articulated manner connected to the yoke and to the piston. It has at its ends parts of spherical surfaces, which allow a Abrol- lling movement of the connecting rod on the yoke and on the piston.
- a reciprocating compressor according to the Scotch-Yoke principle has also become known from DE 2032434.
- the shaft of the piston is clamped to a guide piston with egg ⁇ ner sleeve.
- This device is expensive to manufacture, and the implemen ⁇ wetting with small geometries is complicated.
- a connecting rod be provided for use in a reciprocating compressor with a conventional crank mechanism.
- An inventive reciprocating compressor has a crankcase.
- the reciprocating compressor comprises a crankshaft and arranged thereon at least one connecting rod.
- the connecting rod is in operative connection with a crosshead.
- the crosshead is designed as a guide piston.
- the connecting rod is hinged to the crosshead.
- the reciprocating compressor comprises at least one cylinder and a piston movably arranged in the cylinder.
- the crosshead and the piston are in operative connection with each other by means of a connecting rod.
- the connecting rod is connected at the crosshead with a first fixed clamping and at the piston with a second fixed clamping.
- the crosshead is a coupling link between the substantially linearly moving connecting rod and the connecting rod, wherein the crosshead elimi ⁇ ned the pivoting movement of the connecting rod. Above the crosshead, the movements are essentially only linear.
- a fixed clamping on the crosshead and a fixed clamping on the piston make it possible to create a connection which is free of play. Such a connection is also easy to manufacture and the number of different parts remains low.
- the connecting rod can be designed so that it allows misalignment between the crosshead and the piston with minimal transverse piston forces.
- the piston-side restraint is within ⁇ half of the piston, preferably in the center of gravity of the piston and particularly preferably in the lower, the crankshaft facing, third of the piston.
- This lateral forces can be absorbed above and below the clamping.
- the force curve at the clamping is favored.
- the clamping is such ge ⁇ staltet that a cylindrical housing of the fitting, a length to diameter ratio of 1.5: 1: 1, preferably 2: 1 and more preferably of at least 2.5.
- a stable connection can be created.
- At least one of the restraints can also be designed with a thread. It is conceivable to provide an external thread on each of the connecting rod. In this case, the piston or the crosshead on a blind hole with a corre sponding ⁇ internal thread. However, it is also conceivable that Provide blind hole on the connecting rod and thus adoptge ⁇ thread and internal thread to swap.
- the connecting rod may have a first connection area for the crosshead and a second connection area for the piston.
- connection area allows a shaping of the connecting rod, which is matched to the respective component (piston / crosshead).
- the connecting rod can have a section which has a constant cross section (hereinafter referred to as middle section).
- a connecting rod can be provided which interim ⁇ rule comprises the connection regions of the properties of the terminal portions have different properties.
- the cross section can be selected such that, for example, defined deformations can occur in the middle section. Likewise, it is possible to relieve the connection areas in case of damage ⁇ or excessive load on the entire compressor.
- connection area can be designed on the one hand the Vo ⁇ out settlement for connection to the piston or to the crosshead as molded range accordingly.
- a reduction in the cross section in this area or directly afterwards Area, for example, between this area and the central portion allows an elastic bending or elastic ⁇ cal buckling and / or a change in angle between the central portion and a respective terminal area.
- Positional inaccuracies can arise, inter alia, that the crosshead is worn, where ⁇ in particular the guide portions of the crosshead over the term may have a certain wear.
- connection areas are preferably calculated using computer-aided methods, such as the finite element method, taking into account all geometries and loads.
- the crosshead is preferably designed as a guide piston, that is, that it, driven by a connecting rod, within a cylindrical bore moves up and down, or on and is movable from.
- the guide piston preferably has a diameter to length ratio that is 1 to 1.
- the crosshead has a length which is greater than the diameter.
- the connecting rod preferably has a diameter and a length which are dimensioned such that a cross ⁇ force resulting from a maximum deviation of the first clamping opposite the second clamping with respect transversely to a central axis of the cylinder a predetermined
- Border cross-power does not exceed.
- the deflection is a maximum of 3% of a piston diameter and / or preferably a maximum of 0.5 mm.
- the resulting lateral force limit is a maximum of 1/200 of a piston ⁇ strength and preferably does not exceed 20 Newtons.
- the piston ⁇ force is the force acting in the inventive operation on the piston crown.
- the crosshead and the piston and correspondingly also the respective restraints may also have a central axis which is collinear or substantially collinear with the axis of the cylinder.
- the diameter and length of the piston rod are thus selects ⁇ ge such that minimal conditions are met.
- a final calculation of the forces is easily possible. This makes it possible to make a statement about the expected service life. Also when for example a Revisi ⁇ one or a replacement of wear is necessary can be determined.
- the cylinder of the reciprocating compressor can cut a suitssab ⁇ and having a compression section. This enables the manufacture of the cylinder light with different union for example, ⁇ surface quality and / or different characteristics for the respective section.
- the compression portion may be constructed in several parts, wherein the compression portion preferably comprises a cylinder head, a central part and a cylinder base.
- a guide ring may be provided.
- the respective sliding layer can be applied to the piston or the crosshead or the respective region of the cylinder. This allows the reduction of frictional forces. This is particularly advantageous in reciprocating compressors, which are designed as oil-free, dry-running compressors.
- the reciprocating compressor may be air-cooled or water-cooled. Different applications are possible.
- the reciprocating compressor is dry running. Dry running means here that at least neither the piston nor the
- Lubricated guide piston This means that the compressor is oil-free in these areas.
- the compressor is completely dry-running, that is, completely oil-free. This signified tet ⁇ that the compressor is not lubricated also in the area of the crankshaft and the connecting rod bearings.
- the dimensioning of the connecting rod makes it possible to match the diameters of piston and cylinder in a very narrow range. without additional lubrication is necessary to keep the wear and / or lateral / lateral forces low.
- Oil lubrication is also conceivable as an alternative. This, however, only if, for example, no special demands are placed on the cleanliness of the medium to be compacted.
- a dry-running compressor allows a compression process without the process gas after compression still ge ⁇ secretes must be filtered or cleaned, or to lubricate compared running compressors, the proportion of dirt Part ⁇ ikeln in the process gas is significantly reduced.
- Another aspect of the invention relates to a retrofit kit for a reciprocating compressor, preferably for a reciprocating compressor as described herein.
- the retrofit kit includes a connecting rod, a crosshead, a piston, and a connecting rod.
- the crosshead and the piston can be brought into operative connection with one another by means of the connecting rod.
- the crosshead and the piston are connected to the connecting rod with a fixed clamping or connectable.
- the crosshead and the piston each have a receptacle for fixed clamping of the connecting rod.
- a reciprocating compressor and / or an arrangement of piston, crosshead and connecting rod as described herein is particularly advantageous in compressing process gas such as
- Such reciprocating compressors can be constructed in multiple stages.
- FIG. 1 shows a reciprocating compressor according to the invention with four cylinders.
- FIG. 2 shows a sectional detailed view from FIG. 1.
- Figure 3a shows a detail of a connecting rod
- Figure 3b shows a detail of a connecting rod
- FIG. 1 shows a reciprocating compressor 100.
- the reciprocating compressor 100 has four cylinders 20, in each of which a piston is located.
- the reciprocating compressor 100 is designed as a multi-stage piston compressor.
- FIG. 2 shows a detail of the reciprocating compressor 100 from FIG. 1. Shown is a sectional view through the high-pressure stage of the reciprocating compressor 100 from FIG. 1.
- a crankshaft 11 is arranged, on which a connecting rod 12 is pivotally mounted.
- the connecting rod 12 is connected to a crosshead 13.
- the Ver ⁇ bond between connecting rod 12 and crosshead 13 is designed as a hinged bolt connection. Appropriate bearings on the connection are provided (not specified here).
- the crosshead 13 is madebil ⁇ det as a piston with a round cross section.
- At the top of the crosshead 13 is an opening in which egg ⁇ ne connecting rod 24 is clamped with a clamping A.
- the connecting rod 24 is also firmly clamped to a piston 23 with the clamping B.
- the piston 23 also has a corresponding opening.
- On both sides of Verbin ⁇ extension rod 24 connecting areas 241 and 242 are provided.
- connection regions 241 and 242 merge into a foot, that is, they have in the region of the connection to the piston res ⁇ pective on the crosshead on a thickened and thicker here cross-section.
- the restraints A and B are formed as press seats.
- the connecting rod has a central section 243. This central portion 243 is reduced in comparison to the cut From ⁇ 241 and 242 in diameter.
- the cylinder 20 is divided into a guide portion 21 and a compression portion 22.
- the guide portion 21 is formed integrally.
- the compression section 22 is presently formed in three parts.
- a bushing 2221 is arranged, which extends into the Zylin ⁇ derfuss 223.
- the bush 2221 is in this case made of a high-alloy nickel steel. Alternatively, hard metal or high-strength plastic can be used. Preferably, the materials have a thermal expansion coefficient of zero or approximately zero and are wear resistant.
- the piston 23 preferably the same materials are used.
- Cylinder head 221, middle part 222 and cylinder base 223 are braced against each other by screws.
- the central part 222 has cooling fins, which serve to give off heat to the environment.
- the piston 23 travels up and down within the bushing 2221 and has a sliding layer to reduce friction.
- the overlay is made of high-strength, reinforced plastic, vorlie ⁇ ing PEEK.
- PTFE could be used with carbon fibers.
- the connecting rod 24 is designed in such a way that buckling according to Euler 4 occurs when the piston is loaded from the direction of the compression space. It consists of a high-strength tempered steel, titanium or titanium alloys would be conceivable.
- the crosshead 13, the connecting rod 12 and the guide portion 21 are made of aluminum in the present case. Titanium and its alloys as well as steel are conceivable.
- FIG. 3 a one end of the connecting rod 24 from FIG. 2 is shown. It comprises a region for clamping A, a connection region 241 and a middle section 243. In the middle of ren section 243, the diameter of the connecting rod 24 is substantially constant. This thickened in Anschlußbe ⁇ rich 241 to a foot on which a pin is provided for clamping A in the connection. The cross section of the connection region 241 increases constantly in the direction of the clamping A.
- connection rod of Figure 3A wherein the connecting rod has a connection area 241 identifies with a cross-section narrowing ⁇ 2411th
- This constriction is circumferentially processedbil ⁇ det and forms a solid state joint.
- the constriction 2411 is located between the middle section 243 and the connection region 241, and forms the end of the connection region 241 toward the middle section 243.
- the same explanations also apply to the clamping B and the associated connection region 242.
- Figure 4 shows schematically a connecting rod 24, clamped in a piston 23 and a crosshead 13.
- an offset f is drawn, which can ent ⁇ stand, for example, by manufacturing tolerances.
- the offset f can also be adjusted over time. For example, a leader may wear off the crosshead. This danger is increased, for example, in egg ⁇ nem dry running, oil-free piston compressor.
- the calculations could all be done after Tetmajer.
- the following diameters D, lengths L and slenderness levels ⁇ could be determined iteratively.
- the Be ⁇ bills can of course also be calculated on the basis of a certain, required or desired safety value.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2015/069126 WO2017028923A1 (de) | 2015-08-20 | 2015-08-20 | Hubkolbenkompressor, nachrüstsatz für einen hubkolbenkompressor und verwendung einer verbindungsstange in einem hubkolbenkompressor |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3337976A1 true EP3337976A1 (de) | 2018-06-27 |
Family
ID=53887130
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15753040.3A Withdrawn EP3337976A1 (de) | 2015-08-20 | 2015-08-20 | Hubkolbenkompressor, nachrüstsatz für einen hubkolbenkompressor und verwendung einer verbindungsstange in einem hubkolbenkompressor |
Country Status (7)
Country | Link |
---|---|
US (1) | US10590922B2 (de) |
EP (1) | EP3337976A1 (de) |
JP (1) | JP6758379B2 (de) |
CN (1) | CN107923376B (de) |
BR (1) | BR112018002996A2 (de) |
HK (1) | HK1247263A1 (de) |
WO (1) | WO2017028923A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2018344739B2 (en) | 2017-10-06 | 2023-04-13 | Shionogi & Co., Ltd. | Stereoselective process for preparing substituted polycyclic pyridone derivatives |
CN109000142A (zh) * | 2018-08-02 | 2018-12-14 | 苏州力森克液压设备有限公司 | 一种用于液压缸的气体型润滑剂 |
EP3857065B1 (de) * | 2018-09-24 | 2022-07-27 | Burckhardt Compression AG | Kolbenkompressor sowie verfahren zum betrieb desselben |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2014950A (en) * | 1930-08-12 | 1935-09-17 | Henry D Pownall | Gas compressor |
US2861851A (en) * | 1956-01-30 | 1958-11-25 | Mission Mfg Co | Piston and rod assemblies |
US3849652A (en) * | 1973-06-25 | 1974-11-19 | Texas Instruments Inc | Floating annulus for gas porting to a moving heat exchanger |
US5161928A (en) * | 1991-05-13 | 1992-11-10 | Dresser-Rand Company | Axially-adjustable attachment of a rod to a member |
ES2095622T3 (es) * | 1993-08-25 | 1997-02-16 | Burckhardt Ag Maschf | Compresor de embolo. |
AU727704B2 (en) | 1997-01-17 | 2000-12-21 | Atlas Copco (Schweiz) Ag | Reciprocating piston compressor |
CN2700600Y (zh) * | 2004-04-19 | 2005-05-18 | 杨义青 | 改进型大马力汽车用离合器助力泵 |
CN2702078Y (zh) * | 2004-06-03 | 2005-05-25 | 王连军 | 气动液压泵 |
JP4653511B2 (ja) | 2005-02-10 | 2011-03-16 | Jx日鉱日石エネルギー株式会社 | クランク機構、およびこのクランク機構を利用した圧縮機またはポンプ |
EP1710216B8 (de) * | 2005-04-07 | 2016-03-02 | Oerlikon Metco AG, Wohlen | Kompressor mit einer oberflächenschicht eines keramischen werkstoffs und das verfahren seiner herstellung |
JP5527090B2 (ja) * | 2010-08-06 | 2014-06-18 | 株式会社Ihi | 往復動式圧縮機 |
CN202391677U (zh) * | 2011-11-18 | 2012-08-22 | 淄博真空泵厂有限公司 | 往复式真空泵 |
US9822877B2 (en) * | 2013-09-16 | 2017-11-21 | Ariel Corporation | Lightweight compressor piston with opening |
-
2015
- 2015-08-20 EP EP15753040.3A patent/EP3337976A1/de not_active Withdrawn
- 2015-08-20 JP JP2018528377A patent/JP6758379B2/ja not_active Expired - Fee Related
- 2015-08-20 BR BR112018002996-3A patent/BR112018002996A2/pt active Search and Examination
- 2015-08-20 CN CN201580082537.XA patent/CN107923376B/zh not_active Expired - Fee Related
- 2015-08-20 US US15/753,323 patent/US10590922B2/en not_active Expired - Fee Related
- 2015-08-20 WO PCT/EP2015/069126 patent/WO2017028923A1/de active Application Filing
-
2018
- 2018-05-24 HK HK18106751.6A patent/HK1247263A1/zh unknown
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2017028923A1 * |
Also Published As
Publication number | Publication date |
---|---|
US10590922B2 (en) | 2020-03-17 |
US20180245574A1 (en) | 2018-08-30 |
CN107923376A (zh) | 2018-04-17 |
BR112018002996A2 (pt) | 2018-09-25 |
JP2018526581A (ja) | 2018-09-13 |
JP6758379B2 (ja) | 2020-09-23 |
CN107923376B (zh) | 2020-07-03 |
WO2017028923A1 (de) | 2017-02-23 |
HK1247263A1 (zh) | 2018-09-21 |
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