JP2014163624A5 - - Google Patents
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- JP2014163624A5 JP2014163624A5 JP2013036876A JP2013036876A JP2014163624A5 JP 2014163624 A5 JP2014163624 A5 JP 2014163624A5 JP 2013036876 A JP2013036876 A JP 2013036876A JP 2013036876 A JP2013036876 A JP 2013036876A JP 2014163624 A5 JP2014163624 A5 JP 2014163624A5
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- motor
- economizer
- evaporator
- supply pipe
- 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.)
- Pending
Links
- 239000003507 refrigerant Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Description
エコノマイザサイクルを採用している場合、バイパスさせる液冷媒はエコノマイザ効果分だけ、冷凍効果が低下することになる。
図３は、過剰に電動機に供給された液冷媒が蒸発器に戻った場合のエコノマイザ効果低減分を示すモリエル線図である。図３に示すように、過剰に電動機に供給された液冷媒が蒸発器に戻った場合には、エコノマイザによる冷凍効果は、図３の斜線部分で示す分だけ失われることになり、冷凍能力が低下してしまう。
When the economizer cycle is adopted, the refrigeration effect of the liquid refrigerant to be bypassed is reduced by the amount of the economizer effect.
FIG. 3 is a Mollier diagram showing the reduced economizer effect when the liquid refrigerant excessively supplied to the electric motor returns to the evaporator. As shown in FIG. 3, when the liquid refrigerant excessively supplied to the motor is returned to the evaporator, the refrigeration effect by the economizer is made to be lost by the amount indicated by the hatched portion in FIG. 3, the refrigerating capacity It will decline.
上述の目的を達成するため、本発明のターボ冷凍機は、冷水から熱を奪って冷媒が蒸発し冷凍効果を発揮する蒸発器と、冷媒を羽根車によって圧縮するターボ圧縮機と、ターボ圧縮機を駆動する電動機と、圧縮された冷媒ガスを冷却水で冷却して凝縮させる凝縮器とを備えたターボ冷凍機において、凝縮器側から分岐した配管であって、凝縮器側から前記電動機に冷媒を供給する冷媒供給配管と、前記冷媒供給配管に設置され、該冷媒供給配管を流れる冷媒流量を制御する制御弁と、前記電動機の内部温度を測定する温度測定手段と、前記制御弁の開度を制御する制御装置とを備え、前記制御装置は、前記温度測定手段により測定された前記電動機の内部温度に基づいて前記制御弁の開度を制御することにより前記電動機に供給される冷媒流量を制御することを特徴とする。 In order to achieve the above object, a turbo refrigerator of the present invention includes an evaporator that takes heat from cold water and evaporates the refrigerant to exert a refrigeration effect, a turbo compressor that compresses the refrigerant with an impeller, and a turbo compressor In a turbo refrigerator having a motor that drives a compressor and a condenser that cools and condenses compressed refrigerant gas with cooling water, a pipe branched from the condenser side, wherein the refrigerant is supplied from the condenser side to the motor. A refrigerant supply pipe, a control valve that is installed in the refrigerant supply pipe and controls a flow rate of the refrigerant flowing through the refrigerant supply pipe, a temperature measuring unit that measures an internal temperature of the electric motor , and an opening degree of the control valve and a control unit for controlling, the control device, the refrigerant flow supplied to the electric motor by controlling the opening degree of the control valve based on the internal temperature of said measured motor by said temperature measuring means And controlling the.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013036876A JP2014163624A (en) | 2013-02-27 | 2013-02-27 | Turbo refrigerator |
| CN201410055037.4A CN104006563B (en) | 2013-02-27 | 2014-02-18 | Turborefrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013036876A JP2014163624A (en) | 2013-02-27 | 2013-02-27 | Turbo refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2014163624A JP2014163624A (en) | 2014-09-08 |
| JP2014163624A5 true JP2014163624A5 (en) | 2015-11-05 |
Family
ID=51367346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2013036876A Pending JP2014163624A (en) | 2013-02-27 | 2013-02-27 | Turbo refrigerator |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2014163624A (en) |
| CN (1) | CN104006563B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102268282B1 (en) * | 2015-01-13 | 2021-06-22 | 엘지전자 주식회사 | Turbo compressor and Refrigerating device having the same |
| DE112017001465T5 (en) * | 2016-03-22 | 2018-12-06 | Denso Corporation | Refrigeration cycle device |
| JP6630627B2 (en) * | 2016-05-02 | 2020-01-15 | 荏原冷熱システム株式会社 | Turbo refrigerator |
| US10782057B2 (en) | 2017-12-29 | 2020-09-22 | Johnson Controls Technology Company | Motor temperature control technique with temperature override |
| KR20240155982A (en) * | 2019-03-28 | 2024-10-29 | 존슨 컨트롤즈 타이코 아이피 홀딩스 엘엘피 | A heating, ventilation, air conditioning and/or refrigeration system with a compressor motor cooling system |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS439797Y1 (en) * | 1965-06-18 | 1968-04-27 | ||
| JPS58179873U (en) * | 1982-05-24 | 1983-12-01 | 三菱電機株式会社 | Stator core temperature measuring device |
| JPH03225161A (en) * | 1990-01-31 | 1991-10-04 | Hitachi Ltd | Liquid injection device of freezing cycle in thermostatic device |
| JP3208772B2 (en) * | 1990-05-24 | 2001-09-17 | セイコーエプソン株式会社 | Electric car |
| JPH04364344A (en) * | 1991-06-07 | 1992-12-16 | Yaskawa Electric Corp | High-speed motor cooling method and device |
| JP2000146331A (en) * | 1998-11-06 | 2000-05-26 | Mitsubishi Electric Corp | Cooling device for electric motor for refrigerant compressor |
| US6324858B1 (en) * | 1998-11-27 | 2001-12-04 | Carrier Corporation | Motor temperature control |
| JP2000220893A (en) * | 1999-02-01 | 2000-08-08 | Ebara Corp | Semi-closed screw freezer |
| JP3952284B2 (en) * | 2002-06-12 | 2007-08-01 | 東京瓦斯株式会社 | Air conditioner |
| US7328587B2 (en) * | 2004-01-23 | 2008-02-12 | York International Corporation | Integrated adaptive capacity control for a steam turbine powered chiller unit |
| JP4973976B2 (en) * | 2006-02-13 | 2012-07-11 | 株式会社Ｉｈｉ | Sealed turbo compression refrigerator |
| JP4749178B2 (en) * | 2006-02-22 | 2011-08-17 | 三菱電機株式会社 | Refrigeration equipment |
| US8156757B2 (en) * | 2006-10-06 | 2012-04-17 | Aff-Mcquay Inc. | High capacity chiller compressor |
| JP2008196323A (en) * | 2007-02-08 | 2008-08-28 | Ihi Corp | Control device for drive unit of rotary motor for electrically assisted supercharger |
| JP5029396B2 (en) * | 2008-02-06 | 2012-09-19 | 株式会社Ｉｈｉ | Inlet guide vane, turbo compressor and refrigerator |
| JP5244470B2 (en) * | 2008-06-13 | 2013-07-24 | 三菱重工業株式会社 | refrigerator |
| IT1395987B1 (en) * | 2009-10-16 | 2012-11-09 | Delphi Italia Automotive Systems S R L | MOTOR-COMPRESSOR GROUP FOR A VEHICLE REFRIGERATION AND / OR CONDITIONING SYSTEM |
| JP5669402B2 (en) * | 2010-01-08 | 2015-02-12 | 三菱重工業株式会社 | Heat pump and heat medium flow rate calculation method for heat pump |
| WO2012114462A1 (en) * | 2011-02-22 | 2012-08-30 | 株式会社日立製作所 | Air conditioning/hot water supply system and control method for air conditioning/hot water supply system |
| EP2736152B1 (en) * | 2011-07-21 | 2020-10-14 | Daikin Industries, Ltd. | Electric motor and turbo compressor |
-
2013
- 2013-02-27 JP JP2013036876A patent/JP2014163624A/en active Pending
-
2014
- 2014-02-18 CN CN201410055037.4A patent/CN104006563B/en active Active
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