US3748065A - Gas compressor construction - Google Patents
Gas compressor construction Download PDFInfo
- Publication number
- US3748065A US3748065A US00202977A US3748065DA US3748065A US 3748065 A US3748065 A US 3748065A US 00202977 A US00202977 A US 00202977A US 3748065D A US3748065D A US 3748065DA US 3748065 A US3748065 A US 3748065A
- Authority
- US
- United States
- Prior art keywords
- base
- casing
- fluid
- compressor
- inlet fluid
- 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.)
- Expired - Lifetime
Links
- 238000010276 construction Methods 0.000 title description 6
- 239000012530 fluid Substances 0.000 claims abstract description 59
- 230000006835 compression Effects 0.000 claims abstract description 5
- 238000007906 compression Methods 0.000 claims abstract description 5
- 230000008878 coupling Effects 0.000 claims description 17
- 238000010168 coupling process Methods 0.000 claims description 17
- 238000005859 coupling reaction Methods 0.000 claims description 17
- 230000009467 reduction Effects 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 239000000314 lubricant Substances 0.000 abstract description 2
- 238000005192 partition Methods 0.000 description 8
- 238000004891 communication Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 235000002566 Capsicum Nutrition 0.000 description 1
- 239000006002 Pepper Substances 0.000 description 1
- 235000016761 Piper aduncum Nutrition 0.000 description 1
- 235000017804 Piper guineense Nutrition 0.000 description 1
- 244000203593 Piper nigrum Species 0.000 description 1
- 235000008184 Piper nigrum Nutrition 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
- F04D29/5826—Cooling at least part of the working fluid in a heat exchanger
Definitions
- a gas compression machine having a base, a rotor assembly, casing means for the rotor assembly mounted on the base, inlet fluid housing means separate from said casing means, a telescopic connection between the housing means and casing, a resilient seal interposed at the location of the telescopic connection.
- drive means also connected to the casing, the base being subdivided into a gas intercooler section and a lubricant accommodating section.
- FIG. 1 is a perspective view of a multi-stage centrifugal compressor
- FIG. 2 is a schematic flow diagram showing the relationship of the compressor stages and intercoolers
- FIG. 3 is a partial cross-section side elevation view, with the cross-sections being taken in a vertical plane passing through the axes of rotation of the compressor rotor and drive assembly;
- FIG. 4 is a partial cross-section and exploded view of a portion of the structure as shown'in FIG. 1;
- valve member 16 with the interposition of a suitable linkage 17.
- the inlet valve mechanism 15, 16, 17 is conventional per se for throttling the inlet fluid on partial load and for density control in a known manner.
- the diaphram control is provided with a'pressure feedback tube 18 for this purpose.
- the multi-stage impeller rotor and fluid guide structure is contained within the one piece cast casing 4, which casing is provided with an axially through cylindrical bore 19, a downwardly facing planar surface 20 engaging the correspondingly planar upper surface of the top wall 21 of the base 1, and with an upwardly extending boss 22 that is bored 1 for fluid communication with the outlet of the last com-
- FIG. 5 is a cross-sectional view takenon line 5-5 in FIG. 3 showing the air discharge manifold of the intercoolers.
- the drive assembly for the compressor may be of any type, but preferably employs the electric motor 8 that drives a gear set within the gear housing 6.
- the drive structure may be of the type mentioned in one of applicants previously identified 1 applications wherein the structure is set forth in detail.
- the front wall 23 is provided with oppositely opening doors 24, which lead to a control and auxiliary component compartment having therein the inlet and outlet water couplings for the intercoolers.
- the supply 25 andoutlet 26 waterpipes for the intercoolers extend permanently through the side wall 27 and are provided at their outer ends with suitable couplings to be connected during in- FIG. 2 wherein'the impeller of a first stage 28 passes fluid downwardly through a first intercooler 29. Thereafter, the fluid passes through the second stage impeller 30, which directs it downwardly through the second intercooler 31. F inally, the fluid passes upwardly and through the third stage impeller 32 for discharge to the point of use.
- the impellers 28, 32, 30 form an integral rotor drivingly connected with a spur helical pinion gear 33 that is driven by means of a drive helical gear 34 mounted on a parallel axisgear drive input shaft 35.
- the inlet connection is shown in more detail in FIG. 3.
- a cylindrical mounting portion 36 of the inlet housing 2 is telescopically received over a. cylindrical mounting portion 37 with the interposition of an O-ring 38. From the drawing, it is seen that the adjacent cylindrical surfaces of mounting portions 36, 37 are radially spaced from each other so that the O-ring 38 provides the only engaging connection between the inlet housing 2 and the compressor casing 4, while sealing these structures.
- the inlet housing 2 is independently supported on the base 1 to prevent transmittal of inlet housing vibration, canting, axial movement, radial movement and rotational movement to the compressor casing 4.
- the complete compressor may be supplied to a user and the user .may rigidly couple his inlet fluid pipes directly to the inlet housing 2, without fear that forces relating to the coupling and inlet pipes will be transmitted to the compressor casing. Further, the.
- the removable barrel structure of the compressor includes separate shrouds, diffusers, and annular fluid guide elements all received in a stacked relationship within the cylindrical bore 19 of the one piece compressor casing 4.
- the compressor casing 4 is provided with integrally cast passages extending between the barrel assembly and the base 1. Particularly, a first passage 39 extends between the bore 19 and the'planar surface to conduct fluid from the discharge of the first stage, second passage 40 extends from the bore 19 to the planar surface 20 to conduct the fluid into the third stage inlet, third passage 41 extends from the bore 19 to the planar surface 20 to conduct fluid discharged from the second stage and fourth passage 42 extends from the bore19 to the planar surface 20 to conduct fluid to the inlet of the second stage.
- the base 1 is provided with a top wall 21, opposed side walls 27 and 43, opposed front and back walls 23 and 44, and a bottom wall 45, which together form a substantially closed main chamber containing the intercooler structure.
- the top wall 21 is provided with a plurality of passages, also shown in FIG. 4, extending between the passages 39-42 and the intercooler main chamber.
- the top plate 21 is provided with holes 46 that align with passages 39, holes 47 that align with passage 42, hole 48 that aligns with passage 40 and hole 49 that aligns with passage 41.
- Two parallel partition walls 50 which are parallel to the walls 27, 43, extend completely from the top wall 21 to the bottom wall and extend from the front wall 23 to the back wall 44 to form a central manifold chamber 51.
- Additional partition walls 52 subdivide the manifold chamber into three aligned subchambers, with the outside subchambers 53 being in fluid communication between the holes 47 in the top wall and correspondingly aligned holes in the left-hand partition wall 50, and with the inside subchamber 54 being in fluid communication between the hole 48 and a hole 55 in the right-hand partition wall as shown in FIG. 3.
- the main intercooler chamber is further divided into a first intercooler chamber to the left of the partition walls 50 and a second intercooler chamber 56 to the right of the partition walls 50, as seen in FIG. 3.
- Identical and interchangeable parallel tube fluid heat exchangers 57 are mounted on shelves 58 within their respective intercooler chambers 55, 56 so that they may be horizontally slid into and out of the base 1 after the releasably secure back wall 44 is removed.
- the pipes 25, 26 are provided with releasable couplings 59 for uncoupling the heat exchangers, without affecting the location of the pipes 25, 26.
- the baffles 60 formed in the nozzle type passages 61 constitute separators that willtake the cooled fluid from the heat exchangers having condensed droplets therein, accelerate this cooled fluid and substantially reverse the flow of the accelerated cooled fluid to separate the condensate. Further, moisture will be removed from this separated fluid by means of demister 62. Thereafter, the relatively dry fluid will pass through respective holes in the partition walls 50 so that the fluid from the intercooler chamber 55 will pass into the submanifold chambers 53 and fluid from the intercooler 56 will pass into the submanifold chamber 54. It is noted that the left-hand passage 61 is substantially larger than the right-hand passage 61 as shown in F K].
- the base 1 is provided with an oil sump 63, which is in direct communication with the interior of the gear housing 6.
- the compressor base of the present invention separately and rigidly mounts a rigid compressor casing and a rigid fluid inlet casing, and provides a telescopic coupling therebetween having only a flexible interengagement by means of the O- ring 38.
- the users rigid fluid inlet pipes may be rigidly connected directly to the fluid inlet casing 2 for support thereof, without fear that the stresses produced by the rigid supply coupling will be transmitted to the compressor casing 4.
- any vibrations, thermal expansion, settling, misalignment, etc. associated with the user's fluid supply pipes will be transmitted only to the heavy rigid base and not transmitted directly to the compressor casing.
- this O-ring seal 38 and flexible coupling will accommodate misalignment and tolerances as between the casings 2 and 4, as well as preventing force transmittal therebetween because of the considerable radial spacing between the telescoping cylindrical portions 36, 37.
- the inlet casing may be advantageously used for a conventional type of inlet valve, without fear that forces associated with the inlet valve will be transmitted to the compressor casing.
- the compressor casing is of a one-piece cast construction with integral fluid passages between stages communicating between each stage and intercoolers within the base, respectively, so that no bulky, costly and cumbersome external piping connections are required.
- the base has a top compressor supporting wall that is provided with integral passages aligned respectively in fluid communication with the compressor casing integral passages so that fluid is conducted from the first and second stages downwardly into the intercooler chambers and upwardly from the intercooler chambers into the second and third stages.
- the base is further of a compact construction in that it requires very little extra room over that of the plan view dimensions associated with the compressor casing and inlet fluid casing, with respect to its enclosure for housing intercoolers, centrifugal separators, and demisters.
- the intercoolers are identical and the demisters are identical to provide for interchangeability and inexpensive manufacture.
- the separators are formed by baffles that are identical although assembled in mirror image fashion. The fluid flows downwardly through the intercoolers through a restricted passage formed by the separator baffles so that the cooled fluid approaches or reaches sonic velocity before it is sharply and reversely guided upwardly through the demisters, so that during this reversal, droplets of condensate will be discharged downwardly where they will be collected and removed if desired.
- the fluid moving upwardly through demisters is further directed upwardly through submanifold chambers located centrally between the two intercooler chambers for discharge through the top wall of the base.
- Construction of the base is rigid and relatively inexpensive in that it is of welded steel fabrication employing only planar sheets-and plates, with the partition walls forming the submanifold chambers considerably contributing to the rigidity of the entire structure by providing cross bracing.
- the portion of the base under the drive mechanism, particularly an electric motor and gear train, is of relatively shallow construction due to the greater height of these components and forms a sump for the oil lubrication system.
- this sump is in direct communication with the gear housing.
- the intercoolers are mounted within their respective intercooler chambers by means of shelves so that they may be slid horizontally in one direction out of the base, after the removal of the adjacent releasably mounted wall.
- the wall opposite from the releasably mounted wall is provided with access means so that rigid cooling liquid supply and exhaust pipes may be quickly coupled and uncoupled from the intercoolers.
- the demisters are mounted on respective shelves to be horizontally slid out of their respective intercooler'chambers in .the' same'dire'ction as the heat exchangers, for purposes of repair, replacement or thelike.
- a compressor comprising a rigid base; a compressor rotor; casing means-cooperating with said compressor rotor to form at least one compression stage and being rigidly mounted on said base; inlet fluid housing means being rigidly mounted on said base separately from said casing means; said inlet fluid housing means having fluid supply pipe coupling means and a cylindrical portion forming a discharge passage downstream from said coupling means; said casing means having a cylindrical portion forming an inlet fluid passage up-' stream from said compressor rotor; said inlet fluid housing means and easing means cylindrical portions being telescopically overlapped; resilient annular seal means providing the sole contacting connection between said inlet fluid housing means and said casing means, and forming a tight sealed connection between said cylindrical portions; drive casing means rigidly mounted on said base on the opposite side of said casing means from said inlet fluid housing means, and having therein a gear reduction train; said train having an input shaft with an axis of rotation parallel to said compressor rotor and extending outwardly from said drive casing means in a
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US4403470A | 1970-06-08 | 1970-06-08 | |
US20297771A | 1971-11-29 | 1971-11-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3748065A true US3748065A (en) | 1973-07-24 |
Family
ID=26721108
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00202977A Expired - Lifetime US3748065A (en) | 1970-06-08 | 1971-11-29 | Gas compressor construction |
Country Status (1)
Country | Link |
---|---|
US (1) | US3748065A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3909154A (en) * | 1974-09-05 | 1975-09-30 | Carrier Corp | Centrifugal compressor |
US5980218A (en) * | 1996-09-17 | 1999-11-09 | Hitachi, Ltd. | Multi-stage compressor having first and second passages for cooling a motor during load and non-load operation |
WO2008025938A1 (en) * | 2006-08-30 | 2008-03-06 | Compair Uk Limited | Improvements in compressors units |
US20150330409A1 (en) * | 2014-05-14 | 2015-11-19 | Ingersoll-Rand Company | Air compressor system |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR536590A (en) * | 1921-06-09 | 1922-05-05 | Acec | Improvement in the construction of centrifugal pumps, turbines and fans |
US2606713A (en) * | 1948-04-26 | 1952-08-12 | Snecma | Adjustable inlet device for compressors |
US2849960A (en) * | 1954-02-23 | 1958-09-02 | Goulds Pumps | Pump construction |
US2857849A (en) * | 1953-11-13 | 1958-10-28 | Joseph R Smylie | Motor driven pumping units |
US2916198A (en) * | 1956-06-18 | 1959-12-08 | Zenas V Weisel | Turbo-compressor apparatus |
US3145913A (en) * | 1961-11-03 | 1964-08-25 | Dolz Heinrich | Multi-stage turbo-compressors |
US3150820A (en) * | 1962-07-20 | 1964-09-29 | Worthington Corp | Turbine compressor unit |
US3203352A (en) * | 1962-05-24 | 1965-08-31 | Schafranek Gustav | Multiple pump assembly |
DE1905375A1 (en) * | 1968-04-18 | 1969-10-23 | Wissenschaftlich Tech Zentrum | Centrifugal pump |
-
1971
- 1971-11-29 US US00202977A patent/US3748065A/en not_active Expired - Lifetime
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR536590A (en) * | 1921-06-09 | 1922-05-05 | Acec | Improvement in the construction of centrifugal pumps, turbines and fans |
US2606713A (en) * | 1948-04-26 | 1952-08-12 | Snecma | Adjustable inlet device for compressors |
US2857849A (en) * | 1953-11-13 | 1958-10-28 | Joseph R Smylie | Motor driven pumping units |
US2849960A (en) * | 1954-02-23 | 1958-09-02 | Goulds Pumps | Pump construction |
US2916198A (en) * | 1956-06-18 | 1959-12-08 | Zenas V Weisel | Turbo-compressor apparatus |
US3145913A (en) * | 1961-11-03 | 1964-08-25 | Dolz Heinrich | Multi-stage turbo-compressors |
US3203352A (en) * | 1962-05-24 | 1965-08-31 | Schafranek Gustav | Multiple pump assembly |
US3150820A (en) * | 1962-07-20 | 1964-09-29 | Worthington Corp | Turbine compressor unit |
DE1905375A1 (en) * | 1968-04-18 | 1969-10-23 | Wissenschaftlich Tech Zentrum | Centrifugal pump |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3909154A (en) * | 1974-09-05 | 1975-09-30 | Carrier Corp | Centrifugal compressor |
US5980218A (en) * | 1996-09-17 | 1999-11-09 | Hitachi, Ltd. | Multi-stage compressor having first and second passages for cooling a motor during load and non-load operation |
WO2008025938A1 (en) * | 2006-08-30 | 2008-03-06 | Compair Uk Limited | Improvements in compressors units |
US8167584B2 (en) | 2006-08-30 | 2012-05-01 | Gardner Denver Deutschland Gmbh | Modular compressor unit |
US20150330409A1 (en) * | 2014-05-14 | 2015-11-19 | Ingersoll-Rand Company | Air compressor system |
US10047766B2 (en) * | 2014-05-14 | 2018-08-14 | Ingersoll-Rand Company | Air compressor system |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: ELLIOTT TURBOMACHINERY CO., INC., A CORP OF DELAWA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST. SUBJECT TO LICENSE RECITED.;ASSIGNOR:CARRIER CORPORATION, A CORP OF DEL.;REEL/FRAME:004499/0922 Effective date: 19851220 |
|
AS | Assignment |
Owner name: FIRST NATIONAL BANK OF CHICAGO, THE,ILLINOIS Free format text: LICENSE;ASSIGNOR:ELLIOT TURBOMACHINERY CO., INC.;REEL/FRAME:004940/0562 Effective date: 19871109 Owner name: FIRST NATIONAL BANK OF CHICAGO, THE, ONE FIRST NAT Free format text: LICENSE;ASSIGNOR:ELLIOT TURBOMACHINERY CO., INC.;REEL/FRAME:004940/0562 Effective date: 19871109 |
|
AS | Assignment |
Owner name: CONTINENTAL BANK N.A. Free format text: SECURITY INTEREST;ASSIGNOR:ELLIOTT TURBOMACHINERY CO., INC.;REEL/FRAME:005258/0092 Effective date: 19891212 |