JP7256421B1 - 圧縮機ユニット及び冷凍装置 - Google Patents
圧縮機ユニット及び冷凍装置 Download PDFInfo
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- 238000005057 refrigeration Methods 0.000 title claims description 23
- 239000003507 refrigerant Substances 0.000 claims description 27
- 230000006835 compression Effects 0.000 claims description 23
- 238000007906 compression Methods 0.000 claims description 23
- 238000001816 cooling Methods 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 7
- 230000005284 excitation Effects 0.000 description 14
- 239000003921 oil Substances 0.000 description 7
- 230000002194 synthesizing effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
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- 230000000052 comparative effect Effects 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 239000010687 lubricating oil Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000006837 decompression Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/06—Silencing
-
- 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
- F04C2/00—Rotary-piston machines or pumps
- F04C2/02—Rotary-piston machines or pumps 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
- F04C2/04—Rotary-piston machines or pumps 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 of internal axis type
-
- 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
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
-
- 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
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
- F04C18/3562—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation
- F04C18/3564—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the working space, being surfaces of revolution
-
- 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
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/008—Hermetic pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/04—Accumulators
-
- 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
- F25B1/02—Compression machines, plants or systems with non-reversible cycle with compressor of reciprocating-piston type
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Compressor (AREA)
Abstract
Description
図1に示すように、圧縮機ユニット(10)は、冷凍装置(1)に設けられる。冷凍装置(1)は、冷媒が充填された冷媒回路(1a)を有する。冷媒回路(1a)は、圧縮機ユニット(10)、放熱器(3)、減圧機構(4)、及び蒸発器(5)を有する。減圧機構(4)は、例えば膨張弁である。冷媒回路(1a)は、蒸気圧縮式の冷凍サイクルを行う。
圧縮機本体(11)の上流側には、アキュムレータ(40)が接続される。アキュムレータ(40)は、圧縮機本体(11)に吸入される前の冷媒を一時的に貯留するとともに、冷媒ガスに含まれる液冷媒や冷凍機油を気液分離するものである。
ところで、圧縮機の能力をさらに向上させるために、圧縮機本体(11)の回転数を上げたいという要望がある。しかしながら、圧縮機本体(11)の回転数を上げていくと、圧縮機本体(11)からアキュムレータ(40)に伝達される振動が増大して、入口管(42)を介して室外機全体に振動が伝播することで、配管応力の増大や製品で生じる騒音が大きくなる。
F_3n=1 ・・・(2)
図11に示すように、圧縮機本体(11)の回転数が低いうちは、比較例のピークピーク値が、本実施形態のピークピーク値よりも小さくなっている。ところが、圧縮機本体(11)の回転数が118rps以上となった後は、本実施形態のピークピーク値が、比較例のピークピーク値よりも小さくなっている。このように、図11のグラフ図を見ると、ピストン(54)の高速回転域において、本実施形態に係る圧縮機ユニット(10)は、比較例に比べて、アキュムレータ(40)の振動を抑えられていることが分かる。
本実施形態の特徴によれば、圧縮機本体(11)の運転周波数nの1倍の周波数を1n周波数、3倍の周波数を3n周波数とし、圧縮機本体(11)の最高回転数時において、アキュムレータ(40)における1n周波数の伝達関数の位相と、アキュムレータ(40)における3n周波数の伝達関数の位相との位相差θを、位相遅れ側を正とした1n周波数側のピーク基準で、-20°≧θ≧-60°としている。
本実施形態では、ピストン(54)とブレード(57)とが一体形成された揺動ピストン型の圧縮機について説明したが、ピストン(54)とブレード(57)とが別体で形成されたローリングピストン型のロータリ圧縮機であってもよい。
1a 冷媒回路
10 圧縮機ユニット
11 圧縮機本体
12 ケーシング
14 防振部材
20 駆動機構
21 モータ
25 駆動軸
40 アキュムレータ
50 圧縮機構
51 シリンダ
54 ピストン
Claims (8)
- 圧縮機構(50)を有する圧縮機本体(11)と、前記圧縮機本体(11)に接続されたアキュムレータ(40)と、を備えた圧縮機ユニットであって、
前記圧縮機構(50)は、シリンダ(51)と、前記シリンダ(51)内で偏心回転するピストン(54)と、前記シリンダ(51)の圧縮室(55)の内部を低圧室(55a)と高圧室(55b)とに区画するブレード(57)と、を有し、
前記圧縮機本体(11)の運転周波数nの1倍の周波数を1n周波数、3倍の周波数を3n周波数とし、
前記圧縮機本体(11)の最高回転数時において、前記アキュムレータ(40)における前記1n周波数の振動の位相と、前記アキュムレータ(40)における前記3n周波数の振動の位相との位相差θが、位相遅れ側を正とした前記1n周波数側のピークから位相進み側に所定角度ずれた位置を基準として、-20°≧θ≧-60°である
圧縮機ユニット。 - 請求項1の圧縮機ユニットにおいて、
前記所定角度は、11°以上且つ19°以下である
圧縮機ユニット。 - 請求項1又は2の圧縮機ユニットにおいて、
前記圧縮機構(50)を駆動する駆動機構(20)を備え、
前記駆動機構(20)は、駆動軸(25)と、前記駆動軸(25)を回転させるモータ(21)と、を有し、
前記圧縮機本体(11)は、ケーシング(12)と、前記ケーシング(12)を支持する防振部材(14)と、を有し、
前記防振部材(14)が共振する周波数を第1共振周波数とし、
前記駆動軸(25)が共振する周波数と、前記アキュムレータ(40)が共振する周波数とのうち、低い方の周波数を第2共振周波数とし、
前記第1共振周波数と、前記第2共振周波数との間には、前記アキュムレータ(40)において反共振が発生する反共振周波数が含まれ、
前記圧縮機本体(11)の最高回転数時において、前記1n周波数は、前記第1共振周波数以上で且つ前記反共振周波数以下であり、前記3n周波数は、前記反共振周波数以上である
圧縮機ユニット。 - 請求項1~3の何れか1つの圧縮機ユニットにおいて、
前記圧縮機本体(11)の最高回転数は、118rps以上である
圧縮機ユニット。 - 請求項1~4の何れか1つの圧縮機ユニットにおいて、
前記圧縮機本体(11)は、1つの前記シリンダ(51)を有する1シリンダ型の圧縮機である
圧縮機ユニット。 - 請求項1~5の何れか1つの圧縮機ユニット(10)と、
前記圧縮機ユニット(10)で圧縮された冷媒が流れる冷媒回路(1a)と、を備える
冷凍装置。 - 請求項6の冷凍装置において、
前記冷凍装置(1)は、冷房専用機であり、
前記冷凍装置(1)の定格能力P[kW]、前記シリンダ(51)の容積V[cc]が、
P/V<1.9
という条件を満たす
冷凍装置。 - 請求項6の冷凍装置において、
前記冷凍装置(1)は、冷房と暖房とを切り替える冷暖房機であり、
前記冷凍装置(1)の冷房運転時の定格能力P[kW]、前記シリンダ(51)の容積V[cc]が、
P/V<2.6
という条件を満たす
冷凍装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021161444A JP7256421B1 (ja) | 2021-09-30 | 2021-09-30 | 圧縮機ユニット及び冷凍装置 |
PCT/JP2022/030262 WO2023053725A1 (ja) | 2021-09-30 | 2022-08-08 | 圧縮機ユニット及び冷凍装置 |
EP22875601.1A EP4390129A1 (en) | 2021-09-30 | 2022-08-08 | Compressor unit and refrigeration device |
CN202280064420.9A CN117999412A (zh) | 2021-09-30 | 2022-08-08 | 压缩机单元及制冷装置 |
US18/612,559 US20240263631A1 (en) | 2021-09-30 | 2024-03-21 | Compressor unit and refrigeration apparatus |
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JP2021161444A JP7256421B1 (ja) | 2021-09-30 | 2021-09-30 | 圧縮機ユニット及び冷凍装置 |
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JP7256421B1 true JP7256421B1 (ja) | 2023-04-12 |
JP2023056556A JP2023056556A (ja) | 2023-04-20 |
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US (1) | US20240263631A1 (ja) |
EP (1) | EP4390129A1 (ja) |
JP (1) | JP7256421B1 (ja) |
CN (1) | CN117999412A (ja) |
WO (1) | WO2023053725A1 (ja) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001317479A (ja) | 2000-05-11 | 2001-11-16 | Matsushita Electric Ind Co Ltd | 縦置型圧縮機 |
JP2012036775A (ja) | 2010-08-04 | 2012-02-23 | Fujitsu General Ltd | ロータリ圧縮機 |
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2021
- 2021-09-30 JP JP2021161444A patent/JP7256421B1/ja active Active
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2022
- 2022-08-08 CN CN202280064420.9A patent/CN117999412A/zh active Pending
- 2022-08-08 WO PCT/JP2022/030262 patent/WO2023053725A1/ja active Application Filing
- 2022-08-08 EP EP22875601.1A patent/EP4390129A1/en active Pending
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2024
- 2024-03-21 US US18/612,559 patent/US20240263631A1/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001317479A (ja) | 2000-05-11 | 2001-11-16 | Matsushita Electric Ind Co Ltd | 縦置型圧縮機 |
JP2012036775A (ja) | 2010-08-04 | 2012-02-23 | Fujitsu General Ltd | ロータリ圧縮機 |
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US20240263631A1 (en) | 2024-08-08 |
JP2023056556A (ja) | 2023-04-20 |
EP4390129A1 (en) | 2024-06-26 |
CN117999412A (zh) | 2024-05-07 |
WO2023053725A1 (ja) | 2023-04-06 |
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