WO2015005274A1 - ターボ圧縮機及びターボ冷凍機 - Google Patents

ターボ圧縮機及びターボ冷凍機 Download PDF

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Publication number
WO2015005274A1
WO2015005274A1 PCT/JP2014/068037 JP2014068037W WO2015005274A1 WO 2015005274 A1 WO2015005274 A1 WO 2015005274A1 JP 2014068037 W JP2014068037 W JP 2014068037W WO 2015005274 A1 WO2015005274 A1 WO 2015005274A1
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WO
WIPO (PCT)
Prior art keywords
housing
lubricating oil
injection nozzle
turbo compressor
turbo
Prior art date
Application number
PCT/JP2014/068037
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
兼太郎 小田
信義 佐久間
Original Assignee
株式会社Ihi
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 株式会社Ihi filed Critical 株式会社Ihi
Priority to EP14822776.2A priority Critical patent/EP3020980B1/en
Priority to CN201480038526.7A priority patent/CN105358840B/zh
Priority to MYPI2015704684A priority patent/MY185435A/en
Priority to US14/900,375 priority patent/US20160153462A1/en
Publication of WO2015005274A1 publication Critical patent/WO2015005274A1/ja

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    • 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
    • F04D29/06—Lubrication
    • F04D29/063—Lubrication 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
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/10—Centrifugal pumps for compressing or evacuating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle
    • F25B1/04—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type
    • F25B1/053—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type of turbine type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle
    • F25B1/10—Compression machines, plants or systems with non-reversible cycle with multi-stage compression
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B31/00—Compressor arrangements
    • F25B31/002—Lubrication
    • F25B31/004—Lubrication oil recirculating arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/13—Economisers

Definitions

  • the present invention relates to a turbo compressor and a turbo refrigerator. This application claims priority based on Japanese Patent Application No. 2013-144575 for which it applied to Japan on July 10, 2013, and uses the content here.
  • a turbo refrigerator having a turbo compressor that compresses and discharges a refrigerant by rotating an impeller with an electric motor is known.
  • lubricating oil is supplied from an oil tank to sliding parts such as a bearing of a rotating shaft of an electric motor and a bearing of a rotating shaft of an impeller.
  • Patent Document 1 discloses a turbo compressor including a lubricating oil supply device that supplies lubricating oil stored in an oil tank to a sliding portion.
  • This lubricating oil supply device connects a plurality of pipes inside the housing to guide the lubricating oil to the vicinity of the sliding part, and also to the sliding part through a drill hole or the like formed in the casing by machining. It has an oil supply system that approaches and supplies lubricating oil (see FIGS. 2 and 3 of Patent Document 1).
  • Patent Document 2 in a gear case that houses a gear and a pinion that transmit a rotational force from a drive unit of a turbo compressor to a first impeller and a second impeller, lubricating oil is applied to a meshing portion of the gear and the pinion.
  • a lubricating oil injection nozzle is disclosed. Although a plurality of the lubricating oil injection nozzles are not connected as in Patent Document 1, they extend to the vicinity of the meshing portion through holes provided in the housing as in Patent Document 1 (paragraph [Patent Document 2] FIG. 1 and FIG. 2).
  • Patent Document 3 discloses an oil supply pipe for supplying lubricating oil from a lubricating oil tank to a turbo compressor in a turbo refrigerator. However, the detailed configuration of the oil supply pipe is not disclosed (see paragraph [0021] of FIGS. 1 and 2 of Patent Document 3).
  • Japanese Unexamined Patent Publication No. 2012-207666 Japanese Unexamined Patent Publication No. 2003-328998 Japanese Unexamined Patent Publication No. 2009-204260
  • the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a turbo compressor and a turbo chiller that can reduce the labor involved in assembling an oil supply system.
  • a lubricating oil injection nozzle that is disposed through the casing and injects lubricating oil toward a sliding portion accommodated in the casing, and is detachable from the casing.
  • a support member that supports the lubricating oil injection nozzle outside the housing, and a cover member that covers the sliding portion inside the housing and has a through hole, and the lubricating oil injection nozzle Is a turbo compressor disposed through the through hole.
  • the lubricating oil injection nozzle is supported on the support member that is detachably attached to the outside of the housing, and the lubricating oil injection nozzle is inserted into the inside from the outside of the housing.
  • the lubricating oil injection nozzle is installed.
  • the installation of the lubricating oil injection nozzle can be completed simply by being inserted from the outside of the housing, it is possible to reduce the labor involved in assembling the oil supply system.
  • the lubricating oil injection nozzle is inserted into the through hole provided in the cover member that covers the sliding portion inside the housing, and the lubricating oil injection nozzle is installed.
  • the lubricating oil injection nozzle can be installed simply by inserting the lubricating oil injection nozzle from the outside of the housing into the through hole provided in advance in the cover member. Can be completed.
  • the housing is connected to the compressor housing to which the support member is attached and the motor housing to which the cover member is attached by a plurality of bolts.
  • the support member includes a flange that covers a head of at least one of the plurality of bolts when the support member is attached to the compressor casing.
  • the casing cannot be separated into the compressor casing and the motor casing unless the lubricating oil injection nozzle is removed. That is, when the lubricating oil injection nozzle is disposed through the cover member, the lubricating oil injection nozzle may be damaged if the casing is separated in this state.
  • the casing is provided by providing the flange on the support member and covering the head of the bolt connecting the compressor casing and the motor casing. Before the separation, the removal of the lubricant injection nozzle from the cover member is essential, and the lubricant injection nozzle is prevented from being damaged.
  • the flange portion has a hook shape that abuts against the electric motor casing in the connection release direction of the casing.
  • the flange portion hits the motor casing. For this reason, in the present invention, it is possible to make the operator aware that the lubricant injection nozzle has not been removed from the cover member from the end of the flange, and more reliably prevent the lubricant injection nozzle from being damaged. can do.
  • the support member is a lubricating oil manifold having an oil supply passage communicating with at least the lubricating oil injection nozzle.
  • the number of parts can be reduced by using the support member as the lubricating oil manifold, and the oil supply system can be simplified to contribute to cost reduction.
  • the lubricating oil injection nozzle includes a trunk pipe portion disposed through the casing, and an end of the trunk pipe portion. A nozzle part connected to the part, and the nozzle part is lighter than the trunk part.
  • the nozzle part that receives the injection reaction force in the lubricating oil injection nozzle is lighter than the trunk pipe part, the occurrence of vibration due to the injection reaction force is reduced, and the lubricating oil Can be appropriately supplied to the sliding portion.
  • the lubricating oil injection nozzle includes a trunk pipe portion disposed through the casing, and an end of the trunk pipe portion.
  • the nozzle part is connected to a part, and the nozzle part is made of a material having a specific gravity smaller than that of the body tube part.
  • the specific gravity of the nozzle part that receives the injection reaction force in the lubricating oil injection nozzle is smaller than that of the body tube part, so that the occurrence of vibration due to the injection reaction force is reduced, and Lubricating oil can be appropriately supplied to the sliding portion.
  • a condenser that liquefies the compressed refrigerant
  • an evaporator that evaporates the refrigerant liquefied by the condenser and cools an object to be cooled, and is evaporated by the evaporator
  • a turbo refrigerator according to any one of the first to sixth aspects, wherein the refrigerant is compressed and supplied to the condenser.
  • FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. It is a perspective view which shows the lubricating oil injection nozzle and external manifold in embodiment of this invention. It is a perspective view which shows the lubricating oil injection nozzle and external manifold in embodiment of this invention. It is a perspective view which shows the attachment state of the external manifold in embodiment of this invention. It is a perspective view which shows the cover member in embodiment of this invention.
  • FIG. 1 is a system diagram of a turbo refrigerator 1 in an embodiment of the present invention.
  • the turbo refrigerator 1 uses, for example, chlorofluorocarbon as a refrigerant and air-conditioning cold water as a cooling object.
  • the turbo refrigerator 1 includes a condenser 2, an economizer 3, an evaporator 4, and a turbo compressor 5.
  • the condenser 2 is connected to the gas discharge pipe 5a of the turbo compressor 5 through the flow path R1.
  • the refrigerant (compressed refrigerant gas X1) compressed by the turbo compressor 5 is supplied to the condenser 2 through the flow path R1.
  • the condenser 2 liquefies this compressed refrigerant gas X1.
  • the condenser 2 includes a heat transfer tube 2a through which cooling water flows, and cools the compressed refrigerant gas X1 by heat exchange between the compressed refrigerant gas X1 and the cooling water.
  • Compressed refrigerant gas X1 is cooled by heat exchange with cooling water, liquefied, becomes refrigerant liquid X2, and accumulates at the bottom of condenser 2.
  • the bottom of the condenser 2 is connected to the economizer 3 via the flow path R2.
  • An expansion valve 6 for reducing the pressure of the refrigerant liquid X2 is provided in the flow path R2.
  • the economizer 3 is supplied with the refrigerant liquid X2 decompressed by the expansion valve 6 through the flow path R2.
  • the economizer 3 temporarily stores the decompressed refrigerant liquid X2, and separates the refrigerant into a liquid phase and a gas phase.
  • the top of the economizer 3 is connected to the economizer connecting pipe 5b of the turbo compressor 5 through the flow path R3.
  • the refrigerant gas phase component X3 separated by the economizer 3 is supplied to the second compression stage 12 of the turbo compressor 5 through the flow path R3 without passing through the evaporator 4 and the first compression stage 11, and the turbo compressor Increase the efficiency of 5.
  • the bottom of the economizer 3 is connected to the evaporator 4 via a flow path R4.
  • the flow path R4 is provided with an expansion valve 7 for further reducing the pressure of the refrigerant liquid X2.
  • the refrigerant liquid X2 further reduced in pressure by the expansion valve 7 is supplied to the evaporator 4 through the flow path R4.
  • the evaporator 4 evaporates the refrigerant liquid X2 and cools the cold water with the heat of vaporization.
  • the evaporator 4 includes a heat transfer tube 4a through which cold water flows, and cools the cold water and evaporates the refrigerant liquid X2 by heat exchange between the refrigerant liquid X2 and the cold water.
  • Refrigerant liquid X2 takes heat by heat exchange with cold water and evaporates to become refrigerant gas X4.
  • the top of the evaporator 4 is connected to a gas suction pipe 5c of the turbo compressor 5 through a flow path R5.
  • the refrigerant gas X4 evaporated in the evaporator 4 is supplied to the turbo compressor 5 through the flow path R5.
  • the turbo compressor 5 compresses the evaporated refrigerant gas X4 and supplies it to the condenser 2 as the compressed refrigerant gas X1.
  • the turbo compressor 5 is a two-stage compressor that includes a first compression stage 11 that compresses the refrigerant gas X4 and a second compression stage 12 that further compresses the refrigerant compressed in one stage.
  • the first compression stage 11 is provided with an impeller 13, and the second compression stage 12 is provided with an impeller 14, which are connected by a rotating shaft 15.
  • the turbo compressor 5 rotates the impellers 13 and 14 by the electric motor 10 to compress the refrigerant.
  • the impellers 13 and 14 are radial impellers, and have blades including a three-dimensional twist (not shown) that guides the refrigerant sucked in the axial direction in the radial direction.
  • the gas intake pipe 5c is provided with an inlet guide vane 16 for adjusting the intake amount of the first compression stage 11.
  • the inlet guide vane 16 is rotatable so that the apparent area from the flow direction of the refrigerant gas X4 can be changed.
  • a diffuser flow path is provided around each of the impellers 13 and 14, and the refrigerant led out in the radial direction is compressed and boosted in the diffuser flow path. Further, the gas can be supplied to the next compression stage by a scroll passage provided around the diffuser passage.
  • An outlet throttle valve 17 is provided around the impeller 14 so that the discharge amount from the gas discharge pipe 5a can be controlled.
  • the turbo compressor 5 includes a sealed casing 20.
  • the housing 20 is partitioned into a compression flow path space S1, a first bearing housing space S2, a motor housing space S3, a gear unit housing space S4, and a second bearing housing space S5.
  • the housing 20 is separably connected to a compressor housing 20a and an electric motor housing 20b.
  • Impellers 13 and 14 are provided in the compression flow path space S1.
  • the rotating shaft 15 that connects the impellers 13 and 14 is provided so as to be inserted into the compression flow path space S1, the first bearing housing space S2, and the gear unit housing space S4.
  • a bearing 21 that supports the rotary shaft 15 is provided in the first bearing housing space S2.
  • a stator 22, a rotor 23, and a rotating shaft 24 fixed to the rotor 23 are provided in the motor housing space S3, a stator 22, a rotor 23, and a rotating shaft 24 fixed to the rotor 23 are provided.
  • the rotating shaft 24 is provided so as to be inserted into the motor housing space S3, the gear unit housing space S4, and the second bearing housing space S5.
  • a bearing 31 that supports the non-load side of the rotating shaft 24 is provided.
  • a gear unit 25, bearings 26 and 27, and an oil tank 28 are provided in the gear unit housing space S4.
  • the gear unit 25 includes a large-diameter gear 29 fixed to the rotary shaft 24 and a small-diameter gear 30 fixed to the rotary shaft 15 and meshed with the large-diameter gear 29.
  • the gear unit 25 transmits the rotational force so that the rotational speed of the rotary shaft 15 increases (accelerates) with respect to the rotational speed of the rotary shaft 24.
  • the bearing 26 supports the rotating shaft 24.
  • the bearing 27 supports the rotating shaft 15.
  • the oil tank 28 stores lubricating oil supplied to each sliding portion such as the bearings 21, 26, 27, and 31.
  • the casing 20 is provided with seal portions 32 and 33 for sealing the periphery of the rotary shaft 15 between the compression flow path space S1 and the first bearing housing space S2. Further, the casing 20 is provided with a seal portion 34 that seals the periphery of the rotary shaft 15 between the compression flow path space S1 and the gear unit accommodation space S4. The casing 20 is provided with a seal portion 35 that seals the periphery of the rotary shaft 24 between the gear unit accommodation space S4 and the motor accommodation space S3. Further, the casing 20 is provided with a seal portion 36 that seals the periphery of the rotary shaft 24 between the motor housing space S3 and the second bearing housing space S5.
  • the oil tank 28 has an oil supply pump 37.
  • the oil supply pump 37 is connected to an external manifold 38 (support member, lubricant oil manifold) via an oil supply path R6.
  • the external manifold 38 has an oil supply path R7 that communicates with the lubricant injection nozzle 39 and an oil supply path R8 that communicates with the second bearing housing space S5.
  • the lubricating oil that has passed through the oil supply path R7 is supplied to the bearing 26, returns to the oil tank 28 after ensuring and cooling the lubricity of the sliding portion with the rotating shaft 24. Further, the lubricating oil that has passed through the oil supply path R8 is supplied to the bearing 31, and after securing and cooling the lubricity of the sliding portion with the rotating shaft 24, returns to the oil tank 28 via the flow path R9.
  • FIG. 2 is a diagram showing the arrangement of the lubricating oil injection nozzle 39 in the embodiment of the present invention.
  • 3 is a cross-sectional view taken along the line AA in FIG. 4A and 4B are perspective views showing the lubricant injection nozzle 39 and the external manifold 38 in the embodiment of the present invention.
  • FIG. 5 is a perspective view showing a state in which the external manifold 38 is attached in the embodiment of the present invention.
  • FIG. 6 is a perspective view showing the cover member 40 in the embodiment of the present invention.
  • 7A, 7B, and 7C are diagrams for explaining the disassembling work and assembling work of the turbo compressor 5 according to the embodiment of the present invention.
  • the lubricant injection nozzle 39 is disposed through the housing 20.
  • the lubricating oil injection nozzle 39 is inserted in the horizontal direction toward the rotary shaft 24 to which the large-diameter gear 29 is fixed.
  • a cover member 40 that suppresses the scattering of oil droplets scraped up by the rotation of the large-diameter gear 29 is provided.
  • the cover member 40 is attached to the motor housing 20 b of the housing 20.
  • the cover member 40 is provided so as to cover the rotating shaft 24, the bearing 26, and the large-diameter gear 29.
  • the cover member 40 includes a flange portion 41, a groove portion 42, and a through hole 43.
  • the flange portion 41 is a portion that is bolted to the motor housing 20b (see FIG. 3).
  • the groove portion 42 is a portion for avoiding interference with the small diameter gear 30 (see FIG. 2).
  • the through hole 43 is a portion through which the lubricating oil injection nozzle 39 is disposed.
  • the through hole 43 has a size corresponding to the lubricating oil injection nozzle 39, can insert the lubricating oil injection nozzle 39, and scattered oil droplets are not much from the gap with the lubricating oil injection nozzle 39. Gap management is done so as not to leak.
  • the lubricating oil injection nozzle 39 injects lubricating oil toward the bearing 26 housed inside the housing 20.
  • the lubricating oil injection nozzle 39 has a trunk pipe portion 44 disposed through the housing 20 and a nozzle portion 45 connected to an end of the trunk pipe portion 44.
  • the trunk pipe portion 44 has a straight pipe structure, and the lubricating oil can flow therethrough.
  • the nozzle portion 45 is welded to the end portion of the trunk tube portion 44.
  • the nozzle portion 45 has an injection port 45 a that opens obliquely toward the bearing 26.
  • the nozzle portion 45 is lighter than the trunk tube portion 44 as a countermeasure against vibration during injection.
  • the housing 20 is formed by connecting a compressor housing 20a and an electric motor housing 20b by a plurality of bolts 46 (see FIG. 5).
  • the flange portion 20a1 of the compressor housing 20a has a coupling structure with the flange portion 20b1 of the motor housing 20b.
  • the compressor housing 20a and the motor housing 20b are connected by aligning the flange portion 20a1 and the flange portion 20a1 and fastening the periphery thereof with a plurality of bolts 46.
  • the bolt 46 is attached from the electric motor housing 20b, and a screwdriver groove (in this embodiment, a hexagonal hole) is provided in the head portion 46a.
  • the compressor housing 20a is formed with a through hole 20a2 through which the lubricating oil injection nozzle 39 is disposed.
  • an external manifold 38 that is detachably attached to the compressor housing 20a and supports the lubricating oil injection nozzle 39 outside the compressor housing 20a is provided.
  • the external manifold 38 branches the oil supply path R6 into an oil supply path R7 that communicates with the lubricating oil injection nozzle 39 and an oil supply path R8 that communicates with the second bearing housing space S5.
  • the external manifold 38 has a main body portion 47 and a flange portion 48.
  • a lubricating oil injection nozzle 39 is welded to the main body 47.
  • the external manifold 38 and the lubricating oil injection nozzle 39 have an integral structure.
  • a seal groove 49 in which an O-ring (not shown) is disposed is formed around the lubricating oil injection nozzle 39 of the main body 47 and around the hole serving as the oil supply path R6.
  • a hard material is used for the O-ring, and since the O-ring realizes a metal touch, the mounting posture (see FIG. 3) of the external manifold 38 with respect to the compressor housing 20a is kept constant.
  • the main body 47 is provided with a plurality of through holes 50. Bolts 51 (see FIG. 3) are inserted into the through holes 50.
  • the external manifold 38 is detachably attached to the compressor casing 20a by the bolts 51.
  • a flange portion 48 is bolted to the main body portion 47. As shown in FIG. 5, when the external manifold 38 is attached to the compressor housing 20a, the flange portion 48 has at least one of the plurality of bolts 46 (only one in this embodiment). Covers the head 46a.
  • the collar portion 48 of the present embodiment is formed of a sheet metal having a width that can cover the head portion 46a of one bolt 46.
  • the collar portion 48 has an L-shaped hook shape.
  • the flange portion 48 has a shape that abuts against the electric motor casing 20b in the connection release direction of the casing 20 (the axial direction of the rotating shaft 24 shown in FIG. 3).
  • the flange portion 48 has a shape that abuts against the flange portion 20b1 of the motor housing 20b.
  • an external manifold 38 is attached to the compressor housing 20a. Further, a cover member 40 through which the lubricating oil injection nozzle 39 supported by the external manifold 38 passes is attached to the motor housing 20b. As described above, when the lubricant injection nozzle 39 is disposed so as to penetrate the cover member 40, the lubricant injection nozzle 39 may be damaged if the casing 20 is separated in this state (see FIG. 7A).
  • the flange 48 is provided in the external manifold 38, and the head 46a of the bolt 46 that connects the compressor housing 20a and the motor housing 20b is covered, so that the housing 20 can be separated.
  • one of the bolts 46 is disposed on the back side of the flange portion 48 provided in the external manifold 38 and cannot access the head 46 a for screwing. Therefore, the bolt 46 cannot be removed by the tool 100 unless the external manifold 38 is removed (see FIG. 7A).
  • the motor casing 20b cannot be removed from the compressor casing 20a. it can.
  • the flange portion 48 has a hook shape that abuts against the electric motor casing 20b in the connection release direction of the casing 20. Therefore, when the casing 20 is to be separated without removing the lubricant injection nozzle 39, the flange portion 48 abuts against the motor casing 20b. For this reason, in this embodiment, the operator can be aware that the lubricant injection nozzle 39 has not been removed from the cover member 40 from the end of the flange portion 48, and damage to the lubricant injection nozzle 39 can be further prevented. It can be surely prevented.
  • the turbo compressor 5 is assembled by the procedure of FIG. 7C ⁇ FIG. 7B ⁇ FIG. 7A. That is, the turbo compressor 5 is assembled by following the reverse procedure of the disassembling operation.
  • casing 20b are made to oppose.
  • the compressor housing 20 a and the motor housing 20 b are connected by a plurality of bolts 46.
  • the lubricating oil injection nozzle 39 is inserted into the housing 20 from the outside to the inside, and the lubricating oil injection nozzle 39 is installed.
  • the assembly work of the turbo compressor 5 is completed.
  • the lubricant injection nozzle 39 is supported on an external manifold 38 that is detachably attached to the outside of the housing 20, and the lubricant injection nozzle 39 is inserted from the outside to the inside of the housing 20. 39 is installed.
  • the installation of the lubricating oil injection nozzle 39 can be completed simply by inserting from the outside of the housing 20, it is possible to reduce the effort required for assembling the oil supply system of the turbo compressor 5.
  • the through hole 43 is provided in the cover member 40 that covers the large-diameter gear 29 and the bearing 26 inside the housing 20, and the lubricating oil injection nozzle 39 is inserted into the through hole 43, and the lubricating oil injection nozzle 39 is installed.
  • the through hole 43 in the cover member 40 in advance, the installation of the lubricating oil injection nozzle 39 can be completed simply by being inserted from the outside of the housing 20.
  • the lubricating oil injection nozzle 39 is supported by an external manifold 38 that branches the oil supply path.
  • the external manifold 38 as a support member for the lubricating oil injection nozzle 39, the number of parts can be reduced, and the oil supply system can be simplified to contribute to cost reduction. Further, since the pressure loss is reduced when the oil supply system is simplified, the load applied to the oil supply pump 37 is reduced, and as shown in FIG. Can be supplied with lubricating oil.
  • the nozzle portion 45 when the injection direction of the lubricating oil is bent in the nozzle portion 45, the nozzle portion 45 receives an injection reaction force.
  • the nozzle portion 45 that receives the injection reaction force is formed to be lighter than the trunk tube portion 44, the occurrence of vibration due to the injection reaction force is reduced, and the lubricating oil is appropriately supplied to the bearing 26. Can do.
  • the lubricating oil injection nozzle 39 is supported by the through hole 43 of the cover member 40 at an intermediate point thereof, the lubricating oil supply position is accurately supplied to the bearing 26 without being displaced by the injection reaction force. be able to.
  • a turbo compressor 5 having an external manifold 38 that is detachably attached to the body 20 and supports the lubricant injection nozzle 39 outside the housing 20 is employed. Therefore, it is possible to reduce the time and labor required for assembling the fuel supply system, and it is possible to reduce pressure loss as well as cost reduction.
  • the present invention can adopt the form shown in FIG.
  • the same or equivalent components as those in the above-described embodiment are denoted by the same reference numerals, and the description thereof is simplified or omitted.
  • FIG. 8 is a cross-sectional view showing a lubricating oil injection nozzle 39 in another embodiment of the present invention.
  • a body pipe portion 44 and a nozzle portion 45 are coupled by a screw portion 52.
  • the trunk tube portion 44 and the nozzle portion 45 can be formed from different materials (for example, the trunk tube portion 44 is made of iron and the nozzle portion 45 is made of aluminum).
  • the nozzle portion 45 by forming the nozzle portion 45 from a material having a specific gravity smaller than that of the body tube portion 44, the head of the lubricating oil injection nozzle 39 is lightened, the occurrence of vibration due to the injection reaction force is reduced, and the lubricating oil is used as a bearing. 26 can be appropriately supplied.
  • the present invention is not limited to this configuration, and the bearings 21, 27, 31 are described. It is good also as said sliding part.
  • turbo compressor and turbo refrigerator which can reduce the effort concerning the assembly of an oil supply system are obtained.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
PCT/JP2014/068037 2013-07-10 2014-07-07 ターボ圧縮機及びターボ冷凍機 WO2015005274A1 (ja)

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EP14822776.2A EP3020980B1 (en) 2013-07-10 2014-07-07 Turbo compressor and turbo refrigerating machine
CN201480038526.7A CN105358840B (zh) 2013-07-10 2014-07-07 涡轮压缩机及涡轮冷冻机
MYPI2015704684A MY185435A (en) 2013-07-10 2014-07-07 Turbo compressor and turbo refrigerating machine
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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6269728B2 (ja) * 2016-05-23 2018-01-31 株式会社豊田自動織機 電動式ターボ機械
JP6812850B2 (ja) * 2017-03-01 2021-01-13 株式会社豊田自動織機 電動過給機
JP6794922B2 (ja) * 2017-05-12 2020-12-02 株式会社豊田自動織機 電動過給機
JP7004175B2 (ja) * 2018-10-02 2022-01-21 株式会社豊田自動織機 電動過給機

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4963008A (zh) * 1972-06-12 1974-06-19
JPH05196328A (ja) * 1991-08-05 1993-08-06 Carrier Corp トランスミッションオイル閉込システム
JP2003328998A (ja) 2002-05-17 2003-11-19 Kobe Steel Ltd ターボ圧縮機
JP2008082622A (ja) * 2006-09-27 2008-04-10 Ebara Corp 圧縮式冷凍装置
JP2009204260A (ja) 2008-02-28 2009-09-10 Mitsubishi Heavy Ind Ltd ターボ冷凍機
JP2011185175A (ja) * 2010-03-09 2011-09-22 Ihi Corp ターボ圧縮機及びターボ冷凍機
JP2012207666A (ja) 2012-07-17 2012-10-25 Ihi Corp ターボ圧縮機及び冷凍機

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1871662A (en) * 1929-03-22 1932-08-16 Carrier Engineering Corp Method and means for lubricating compressors and the like
US3326423A (en) * 1964-03-23 1967-06-20 Bristol Siddeley Engines Ltd Device for distributing liquids
US5404964A (en) * 1991-08-05 1995-04-11 Carrier Corporation System for reducing oil migration from a transmission
JP3281100B2 (ja) * 1993-03-29 2002-05-13 栃木富士産業株式会社 過給機
JPH074878U (ja) * 1993-06-21 1995-01-24 サンデン株式会社 圧縮機
JP3210243B2 (ja) * 1996-03-12 2001-09-17 株式会社青山製作所 潤滑用ノズル
US5685699A (en) * 1996-06-20 1997-11-11 Carrier Corporation Compressor transmission vent system
JPH1079334A (ja) * 1996-09-03 1998-03-24 Sony Corp 半導体基板の塗布膜除去装置
JP3734942B2 (ja) * 1997-10-29 2006-01-11 株式会社神戸製鋼所 ターボ圧縮機
JP2000179793A (ja) * 1998-12-15 2000-06-27 Kobe Steel Ltd 歯車装置の機械損失低減装置
US6357922B1 (en) * 2000-02-24 2002-03-19 The Timken Company Lubrication system for high speed antifriction bearings
US6428296B1 (en) * 2001-02-05 2002-08-06 Copeland Corporation Horizontal scroll compressor having an oil injection fitting
CN100419263C (zh) * 2005-04-18 2008-09-17 三菱重工业株式会社 变换器内置压缩机
JP4718936B2 (ja) * 2005-04-18 2011-07-06 三菱重工業株式会社 インバータ内蔵圧縮機
ES2688774T3 (es) * 2006-02-02 2018-11-06 Spraying Systems Co. Sistema electrostático de dispensación de lubricante
US7743600B2 (en) * 2006-04-04 2010-06-29 United Technologies Corporation Gas turbine engine telemetry module
JP2008208732A (ja) * 2007-02-23 2008-09-11 Ihi Corp ターボチャージャの軸受ハウジング構造
JP2010242661A (ja) * 2009-04-08 2010-10-28 Toyota Motor Corp 内燃機関の制御装置
JP5272941B2 (ja) * 2009-07-21 2013-08-28 株式会社Ｉｈｉ ターボ圧縮機及び冷凍機
JP5455763B2 (ja) * 2010-04-23 2014-03-26 日立アプライアンス株式会社 スクロール圧縮機，冷凍サイクル装置
US8910751B2 (en) * 2010-06-08 2014-12-16 Flanders Electric Motor Service, Inc. Bearing lubrication system
JP5083401B2 (ja) * 2010-11-01 2012-11-28 ダイキン工業株式会社 スクロール型圧縮機
CN102032177B (zh) * 2010-12-27 2012-11-28 西安交通大学 一种全封闭卧式喷油涡旋压缩机
DE202010016974U1 (de) * 2010-12-27 2011-03-03 Lincoln Gmbh Schmierstoffverteiler
JP5433604B2 (ja) * 2011-02-25 2014-03-05 日立アプライアンス株式会社 スクロール圧縮機
JP2013108389A (ja) * 2011-11-18 2013-06-06 Daikin Industries Ltd 圧縮機および冷凍装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4963008A (zh) * 1972-06-12 1974-06-19
JPH05196328A (ja) * 1991-08-05 1993-08-06 Carrier Corp トランスミッションオイル閉込システム
JP2003328998A (ja) 2002-05-17 2003-11-19 Kobe Steel Ltd ターボ圧縮機
JP2008082622A (ja) * 2006-09-27 2008-04-10 Ebara Corp 圧縮式冷凍装置
JP2009204260A (ja) 2008-02-28 2009-09-10 Mitsubishi Heavy Ind Ltd ターボ冷凍機
JP2011185175A (ja) * 2010-03-09 2011-09-22 Ihi Corp ターボ圧縮機及びターボ冷凍機
JP2012207666A (ja) 2012-07-17 2012-10-25 Ihi Corp ターボ圧縮機及び冷凍機

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US20160153462A1 (en) 2016-06-02
JP2015017538A (ja) 2015-01-29
CN105358840A (zh) 2016-02-24
EP3020980B1 (en) 2020-02-05
JP6102589B2 (ja) 2017-03-29
MY185435A (en) 2021-05-19
EP3020980A1 (en) 2016-05-18
CN105358840B (zh) 2018-10-19
EP3020980A4 (en) 2017-03-15

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