JP5185541B2 - 冷却システム - Google Patents
冷却システム Download PDFInfo
- Publication number
- JP5185541B2 JP5185541B2 JP2007034861A JP2007034861A JP5185541B2 JP 5185541 B2 JP5185541 B2 JP 5185541B2 JP 2007034861 A JP2007034861 A JP 2007034861A JP 2007034861 A JP2007034861 A JP 2007034861A JP 5185541 B2 JP5185541 B2 JP 5185541B2
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- cooler
- receiver
- liquid
- refrigerant circuit
- 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.)
- Active
Links
- 238000001816 cooling Methods 0.000 title claims description 19
- 239000003507 refrigerant Substances 0.000 claims description 110
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 58
- 239000007788 liquid Substances 0.000 claims description 39
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 29
- 239000001569 carbon dioxide Substances 0.000 claims description 29
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 28
- 238000010438 heat treatment Methods 0.000 claims description 16
- 229910021529 ammonia Inorganic materials 0.000 claims description 14
- 238000010257 thawing Methods 0.000 claims description 10
- 230000008016 vaporization Effects 0.000 claims description 6
- 238000009834 vaporization Methods 0.000 claims description 6
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims description 3
- 239000012071 phase Substances 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 4
- 239000007791 liquid phase Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
Images
Landscapes
- Defrosting Systems (AREA)
Description
図において、符号1は冷媒をアンモニアとする1次冷媒回路を、符号2は冷媒を二酸化炭素とする2次冷媒回をそれぞれ示している。
2 2次冷媒回路
3 凝縮器
3a 液相
3b 気相
4 膨張弁
5 アンモニア冷媒往管
6 カスケードコンデンサ
7 アンモニア冷媒復管
8 圧縮機
9 レシーバー
9a 液相
9b 気相
9c 気相
10 液ポンプ
11 調整弁
12 二酸化炭素冷媒往管
13 電磁弁
14 冷却器
14a 冷媒入口
14b 冷媒出口
15 電気ヒータ
16 二酸化炭素冷媒復管
16a 復管分岐部
17 直帰管
18 経由入管
19 経由出管
20 圧力センサ
21 液量センサ
22 制御回路
23 温度センサ
24 制御回路
Claims (2)
- 1次冷媒としてアンモニアが循環される1次冷媒回路と、2次冷媒として二酸化炭素が循環される2次冷媒回路と、を備え、1次冷媒回路にて生じる冷熱により2次冷媒回路の冷媒をカスケードコンデンサにより凝縮してレシーバーに貯留し、同レシーバー内の液冷媒を液ポンプによって負荷側の冷却器に送る自然冷媒冷却システムにおいて、
前記冷却器をデフロストする際、前記レシーバー内における液冷媒の圧力または温度状態を検知しながら前記冷却器に備える電気ヒータの電源をON/OFFすることにより同ヒータの加熱量を調整して、同ヒータの加熱による冷却器内における液冷媒の気化量を急激に気化しない程度の気化量に調整して、負荷側冷却器及び/又は冷媒回路を損傷させることなく除霜できるように構成してなる冷却システム。 - 1次冷媒としてアンモニアが循環される1次冷媒回路と、2次冷媒として二酸化炭素が循環される2次冷媒回路と、を備え、1次冷媒回路にて生じる冷熱により2次冷媒回路の冷媒をカスケードコンデンサにより凝縮してレシーバーに貯留し、同レシーバー内の液冷媒を液ポンプによって負荷側の冷却器に送る自然冷媒冷却システムにおいて、
前記冷却器をデフロストする際、前記レシーバー内における液冷媒の圧力または温度状態を検知しながら前記冷却器に備える電気ヒータの放熱量を増減調整することにより同ヒータの加熱量を調整して、同ヒータの加熱による冷却器内における液冷媒の気化量を急激に気化しない程度の気化量に調整して、負荷側冷却器及び/又は冷媒回路を損傷させることなく除霜できるように構成してなる冷却システム。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007034861A JP5185541B2 (ja) | 2007-02-15 | 2007-02-15 | 冷却システム |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007034861A JP5185541B2 (ja) | 2007-02-15 | 2007-02-15 | 冷却システム |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008196823A JP2008196823A (ja) | 2008-08-28 |
JP5185541B2 true JP5185541B2 (ja) | 2013-04-17 |
Family
ID=39755926
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007034861A Active JP5185541B2 (ja) | 2007-02-15 | 2007-02-15 | 冷却システム |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5185541B2 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5312075B2 (ja) * | 2009-02-05 | 2013-10-09 | 株式会社東洋製作所 | 二酸化炭素循環・冷却システムにおけるデフロスト装置 |
JP5316973B2 (ja) * | 2011-12-15 | 2013-10-16 | 株式会社東洋製作所 | 二酸化炭素冷媒による冷却および除霜システム、およびその運転方法 |
KR101551052B1 (ko) * | 2014-01-10 | 2015-09-18 | 한밭대학교 산학협력단 | Co2 충진량 조절형 이산화탄소 이차유체 냉각 시스템 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02134481U (ja) * | 1989-04-07 | 1990-11-08 | ||
JPH05215460A (ja) * | 1992-01-30 | 1993-08-24 | Sanyo Electric Co Ltd | 蒸発器の除霜方法及び装置 |
JPH0634259A (ja) * | 1992-07-21 | 1994-02-08 | Fujitsu General Ltd | 電気冷蔵庫 |
JP3335263B2 (ja) * | 1995-03-28 | 2002-10-15 | 株式会社東芝 | 温度センサの取付装置 |
JP3473358B2 (ja) * | 1997-01-06 | 2003-12-02 | 三菱電機株式会社 | 冷凍・空調装置、及び冷媒回路組立方法 |
JPH10300244A (ja) * | 1997-04-23 | 1998-11-13 | Matsushita Refrig Co Ltd | 圧縮機内液冷媒滞留防止装置 |
JP2002243350A (ja) * | 2001-02-16 | 2002-08-28 | Sanden Corp | 冷却装置 |
JP2002277144A (ja) * | 2001-03-15 | 2002-09-25 | Matsushita Refrig Co Ltd | 冷蔵庫 |
JP2005172416A (ja) * | 2003-11-21 | 2005-06-30 | Mayekawa Mfg Co Ltd | アンモニア/co2冷凍システム |
-
2007
- 2007-02-15 JP JP2007034861A patent/JP5185541B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
JP2008196823A (ja) | 2008-08-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AU2008270655B2 (en) | Hot gas defrost method and apparatus | |
EP2792970B1 (en) | Container refrigeration device | |
US7210303B2 (en) | Transcritical heat pump water heating system using auxiliary electric heater | |
US20090228152A1 (en) | Chiller Adaptation for Cold Weather Use | |
EP2092248A1 (en) | Air-source heat pump | |
JP5312075B2 (ja) | 二酸化炭素循環・冷却システムにおけるデフロスト装置 | |
JP2010249448A (ja) | ヒートポンプ式給湯・空調装置 | |
JP2013083407A (ja) | 冷却装置 | |
US20140007603A1 (en) | Co2 refrigeration system for ice-playing surface | |
JP5185541B2 (ja) | 冷却システム | |
JP2003314932A (ja) | 冷凍機 | |
KR101455973B1 (ko) | 핫가스 제상식 냉동 시스템 | |
JP5084934B2 (ja) | 二酸化炭素循環・冷却システムにおけるデフロスト装置 | |
JP5693932B2 (ja) | 冷却システム、及び冷却方法 | |
KR20150047706A (ko) | 핫가스 제상 냉동 사이클 장치 | |
JP5084933B2 (ja) | 二酸化炭素循環・冷却システムにおけるデフロスト装置 | |
JP2000179952A (ja) | 冷凍サイクル制御装置 | |
KR102713944B1 (ko) | 냉동 제상 사이클 장치 | |
JP2008032265A (ja) | 冷凍装置 | |
JP2006220332A (ja) | 複合型空気調和装置 | |
KR101538076B1 (ko) | 물-공기 방식의 히트펌프유닛을 이용한 제습냉난방장치 | |
JP2004162998A (ja) | 車両用冷凍装置、およびその制御方法 | |
US20090272518A1 (en) | Air Conditioner Having Cooling and Heating Functions | |
JP2006220335A (ja) | 複合型空気調和装置 | |
JP5058348B2 (ja) | 二酸化炭素循環・冷却システムにおけるデフロスト装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20090723 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20110512 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20110607 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20110803 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20120410 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20120710 |
|
A911 | Transfer to examiner for re-examination before appeal (zenchi) |
Free format text: JAPANESE INTERMEDIATE CODE: A911 Effective date: 20120719 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20120925 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20121010 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20130115 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20130118 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 5185541 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20160125 Year of fee payment: 3 |
|
S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |