JP7236265B2 - 流体機械 - Google Patents
流体機械 Download PDFInfo
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- JP7236265B2 JP7236265B2 JP2018237868A JP2018237868A JP7236265B2 JP 7236265 B2 JP7236265 B2 JP 7236265B2 JP 2018237868 A JP2018237868 A JP 2018237868A JP 2018237868 A JP2018237868 A JP 2018237868A JP 7236265 B2 JP7236265 B2 JP 7236265B2
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- 239000012530 fluid Substances 0.000 title claims description 69
- 238000001816 cooling Methods 0.000 claims description 11
- 230000005855 radiation Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 17
- 230000005856 abnormality Effects 0.000 description 15
- 238000010586 diagram Methods 0.000 description 13
- 239000007789 gas Substances 0.000 description 13
- 230000002159 abnormal effect Effects 0.000 description 7
- 230000007423 decrease Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000009529 body temperature measurement Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012887 quadratic function Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/10—Other safety measures
- F04B49/103—Responsive to speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/08—Regulating by delivery pressure
-
- 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
- F04B35/04—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 electric
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/10—Other safety measures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/28—Safety arrangements; Monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/28—Safety arrangements; Monitoring
-
- 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
- F04B2201/00—Pump parameters
- F04B2201/08—Cylinder or housing parameters
- F04B2201/0801—Temperature
-
- 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
- F04B2203/00—Motor parameters
- F04B2203/02—Motor parameters of rotating electric motors
- F04B2203/0201—Current
-
- 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
- F04B2203/00—Motor parameters
- F04B2203/02—Motor parameters of rotating electric motors
- F04B2203/0202—Voltage
-
- 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
- F04B2203/00—Motor parameters
- F04B2203/02—Motor parameters of rotating electric motors
- F04B2203/0204—Frequency of the electric current
-
- 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
- F04B2203/00—Motor parameters
- F04B2203/02—Motor parameters of rotating electric motors
- F04B2203/0205—Temperature
-
- 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
- F04B2205/00—Fluid parameters
- F04B2205/04—Pressure in the outlet chamber
-
- 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
- F04B2205/00—Fluid parameters
- F04B2205/05—Pressure after the pump outlet
-
- 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
- F04B2207/00—External parameters
- F04B2207/70—Warnings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/40—Electric motor
- F04C2240/403—Electric motor with inverter for speed control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/19—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/44—Conditions at the outlet of a pump or machine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/78—Warnings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Description
T(f)=To(f)+α (1)
T(f)=-kf+β (2)
T(f+Δf)≧T(f) (Δf>0) (3)
圧力Pに対応した閾値T(P)の決定方法は正常な場合の温度To(P)に対して一定値を足した値とする式(4)や任意の係数m、βを用いた圧力Pの関数で閾値を表す式(5)等があり、より一般的には式(6)であればよい。
T(P)=To(P)+α (4)
T(P)=mP+β (5)
T(P+ΔP)≦T(P) (ΔP>0) (6)
図3は図2の閾値の決定方法を単純化したものである。図3の閾値の決定方法は周波数および圧力を範囲で分け、その範囲毎に303および305のように一定の閾値として段階的に変化させる。閾値303および305は正常な場合の温度303、304より大きい値となる。この範囲を分割する場合は一定の範囲でも部分によって範囲の大きさを分けてもよい。また、分割数も任意である。
T’(P)=To’(P)+α (7)
T’(P)=mP+β (8)
T’(P+ΔP)≧T’(P) (ΔP>0) (9)
図9は図3同様に図8の閾値の決定方法を単純化したものである。図9の閾値の決定方法は圧力を範囲で分け、その範囲毎に902のように一定の閾値とする。閾値902は正常な場合の温度901より大きい値となる。この範囲を分割する場合は一定の範囲でも部分によって範囲の大きさを分けてもよい。また、分割数も任意である。
圧力Pに対応した1102の閾値I(P)の決定方法は1101の正常な場合の電流値Io(P)に対して一定値を足した値とする式(10)や任意の係数m、βを用いた圧力Pの関数で閾値を表す式(11)等があり、より一般的には式(12)であればよい。
I(P)=Io(P)+α (10)
I(P)=mP+β (11)
I(P+ΔP)≧I(P) (ΔP>0) (12)
図12は図3同様に図11の閾値の決定方法を単純化したものである。図12の閾値の決定方法は圧力を範囲で分け、その範囲毎に1202のように一定の閾値とする。閾値1202は正常な場合の温度1201より大きい値となる。この範囲を分割する場合は一定の範囲でも部分によって範囲の大きさを分けてもよい。また、分割数も任意である。
W(P)=Wo(P)+α (13)
W(P)=mW+β (14)
W(P+ΔP)=W(P) (ΔP>0) (15)
図15は図3同様に図14の閾値の決定方法を単純化したものである。図15の閾値の決定方法は圧力を範囲で分け、その範囲毎に1502のように一定の閾値とする。閾値1502は正常な場合の温度1501より大きい値となる。この範囲を分割する場合は一定の範囲でも部分によって範囲の大きさを分けてもよい。また、分割数も任意である。
Claims (10)
- 流体機械本体と、
前記流体機械本体を駆動するモータと、
前記流体機械本体の温度を検出する温度センサーと、
前記流体機械本体を制御する制御部と、を備え、
前記制御部は、前記流体機械本体が吐出する流体の圧力に基づき温度閾値を変更し、前記温度センサーが検出する前記温度が前記温度閾値を超えた場合に報知し、
前記流体機械本体が吐出する流体の圧力が高い場合における前記温度閾値は、前記流体機械本体が吐出する流体の圧力が低い場合における前記温度閾値以上の値である流体機械。 - 流体機械本体と、
前記流体機械本体を駆動するモータと、
前記流体機械本体の温度を検出する温度センサーと、
前記流体機械本体に動力を伝達するシャフトに取り付けられた冷却ファンと、
前記流体機械本体を制御する制御部と、を備え、
前記制御部は、前記モータに入力される周波数に基づき温度閾値を変更し、前記温度センサーが検出する前記温度が前記温度閾値を超えた場合に報知し、
前記モータに入力される周波数が高い場合における前記温度閾値は、前記モータに入力される周波数が低い場合における前記温度閾値以下の値である流体機械。 - 前記制御部は、前記流体機械本体の運転の開始から所定時間の間は、前記温度センサーが測定する温度が前記温度閾値を超えたことによる報知を行わない請求項1または2に記載の流体機械。
- 前記温度センサーが計測する前記流体機械本体の温度とは、前記流体機械本体の作動室で発生した熱を放熱する放熱フィンにおける温度である請求項1または2に記載の流体機械。
- 前記温度センサーが計測する前記流体機械本体の温度とは、圧縮気体の吐出口において測定した前記流体機械本体の吐出温度である請求項1または2に記載の流体機械。
- 制御部は、前記温度閾値を第1の温度閾値から、前記第1の温度閾値よりも低い温度である第2の温度閾値に変更する場合に、前記第1の温度閾値と前記第2の温度閾値の間の温度である第3の温度閾値に前記温度閾値を変更後に前記第2の温度閾値に変更する請求項1または2に記載の流体機械。
- 流体機械本体と、
前記流体機械本体を駆動するモータと、
前記モータに入力される電流を測定する電流計と、
前記流体機械本体を制御する制御部と、を備え、
前記制御部は、前記流体機械本体が吐出する流体の圧力に基づき電流閾値を変更し、前記電流計が検出する電流が前記電流閾値を超えた場合に報知し、
前記流体機械本体が吐出する流体の圧力が高い場合における前記電流閾値は、前記流体機械本体が吐出する流体の圧力が低い場合における前記電流閾値以上の値である流体機械。 - 前記制御部は、前記流体機械本体の運転の開始から所定時間の間は、前記電流計が測定する電流が前記電流閾値を超えたことによる報知を行わない請求項7に記載の流体機械。
- 流体機械本体と、
前記流体機械本体を駆動するモータと、
前記モータに入力される電流を測定する電流計と、
前記流体機械本体を制御する制御部と、を備え、
前記制御部は、前記流体機械本体が吐出する流体の圧力に基づき電力閾値を変更し、前記電流計が検出する電流から求められた電力が前記電力閾値を超えた場合に報知し、
前記流体機械本体が吐出する流体の圧力が高い場合における前記電力閾値は、前記流体機械本体が吐出する流体の圧力が低い場合における前記電力閾値以上の値である流体機械。 - 前記制御部は、前記流体機械本体の運転の開始から所定時間の間は、前記電流計が測定する電流から求められた電力が前記電力閾値を超えたことによる報知を行わない請求項9に記載の流体機械。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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JP2018237868A JP7236265B2 (ja) | 2018-12-20 | 2018-12-20 | 流体機械 |
PCT/JP2019/046499 WO2020129564A1 (ja) | 2018-12-20 | 2019-11-28 | 流体機械 |
CN201980048760.0A CN112469900B (zh) | 2018-12-20 | 2019-11-28 | 流体机械 |
EP19898545.9A EP3901461A4 (en) | 2018-12-20 | 2019-11-28 | FLUID MACHINE |
US17/269,101 US11976648B2 (en) | 2018-12-20 | 2019-11-28 | Fluid machine |
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JP2018237868A JP7236265B2 (ja) | 2018-12-20 | 2018-12-20 | 流体機械 |
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JP2020101093A JP2020101093A (ja) | 2020-07-02 |
JP7236265B2 true JP7236265B2 (ja) | 2023-03-09 |
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JP2018237868A Active JP7236265B2 (ja) | 2018-12-20 | 2018-12-20 | 流体機械 |
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US (1) | US11976648B2 (ja) |
EP (1) | EP3901461A4 (ja) |
JP (1) | JP7236265B2 (ja) |
CN (1) | CN112469900B (ja) |
WO (1) | WO2020129564A1 (ja) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10120206A1 (de) | 2001-04-24 | 2002-10-31 | Wabco Gmbh & Co Ohg | Verfahren zur Steuerung eines Kompressors |
JP2007205206A (ja) | 2006-01-31 | 2007-08-16 | Hitachi Ltd | スクロール式流体機械 |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3877842A (en) * | 1970-01-21 | 1975-04-15 | Itt | Air pumps |
US4672920A (en) * | 1984-12-10 | 1987-06-16 | Duprez Wayne R | Pressure compensated temperature switch unit for protection of an internal combustion engine |
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JPH0460360A (ja) * | 1990-06-28 | 1992-02-26 | Toshiba Corp | 空気調和装置 |
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- 2019-11-28 EP EP19898545.9A patent/EP3901461A4/en active Pending
- 2019-11-28 CN CN201980048760.0A patent/CN112469900B/zh active Active
- 2019-11-28 US US17/269,101 patent/US11976648B2/en active Active
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EP3901461A4 (en) | 2023-04-05 |
CN112469900B (zh) | 2022-11-15 |
WO2020129564A1 (ja) | 2020-06-25 |
US20210310479A1 (en) | 2021-10-07 |
CN112469900A (zh) | 2021-03-09 |
EP3901461A1 (en) | 2021-10-27 |
JP2020101093A (ja) | 2020-07-02 |
US11976648B2 (en) | 2024-05-07 |
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