JP5084933B2 - 二酸化炭素循環・冷却システムにおけるデフロスト装置 - Google Patents
二酸化炭素循環・冷却システムにおけるデフロスト装置 Download PDFInfo
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- JP5084933B2 JP5084933B2 JP2011082215A JP2011082215A JP5084933B2 JP 5084933 B2 JP5084933 B2 JP 5084933B2 JP 2011082215 A JP2011082215 A JP 2011082215A JP 2011082215 A JP2011082215 A JP 2011082215A JP 5084933 B2 JP5084933 B2 JP 5084933B2
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- Prior art keywords
- carbon dioxide
- hot gas
- defrost
- 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.)
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims description 410
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims description 205
- 239000001569 carbon dioxide Substances 0.000 title claims description 203
- 238000001816 cooling Methods 0.000 title claims description 42
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 136
- 239000003507 refrigerant Substances 0.000 claims description 109
- 229910021529 ammonia Inorganic materials 0.000 claims description 68
- 238000010257 thawing Methods 0.000 description 28
- 239000007788 liquid Substances 0.000 description 11
- 238000005057 refrigeration Methods 0.000 description 11
- 230000001105 regulatory effect Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- QUWBSOKSBWAQER-UHFFFAOYSA-N [C].O=C=O Chemical compound [C].O=C=O QUWBSOKSBWAQER-UHFFFAOYSA-N 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- KYKAJFCTULSVSH-UHFFFAOYSA-N chloro(fluoro)methane Chemical compound F[C]Cl KYKAJFCTULSVSH-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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- Defrosting Systems (AREA)
Description
10 制御部
11 負荷側冷却器
12 カスケードコンデンサー
13 二酸化炭素冷媒回路
14 アンモニア冷媒回路
15 デフロスト回路
16 ホットガス熱交換器
17 二酸化炭素・レシーバー
18 二酸化炭素・ポンプ
19 二酸化炭素・昇圧ポンプ
20 アンモニア・レシーバー
21 圧縮機
22 凝縮器
23 アンモニア冷媒・冷凍ユニット
24 アンモニア・水冷コンデンサー
25 アンモニア・電磁弁
26 二酸化炭素・電動弁
27 二酸化炭素・圧力指示調節器
28 二酸化炭素・圧力発信器
29 二酸化炭素・電動弁
30 二酸化炭素・電動弁
31 二酸化炭素・電動弁
32 二酸化炭素・電動弁
33 庫内温度・指示調節器
34 二酸化炭素・圧力指示調節器
35 二酸化炭素・圧力発信器
36 二酸化炭素・止弁
37 二酸化炭素・止弁
38 二酸化炭素・電動弁
39 膨張タンク(バッファ手段)
40 切り換え手段
41 ホットガス・バイパス手段
42 圧力逃がし配管
43 調整弁
43a 二酸化炭素・止弁
43b 絞り弁
44 ホットガス圧力指示調節器
Claims (2)
- 負荷側冷却器と、カスケードコンデンサーと、二酸化炭素冷媒が前記負荷側冷却器と前記カスケードコンデンサーを通って循環される二酸化炭素冷媒回路と、アンモニア冷媒が前記カスケードコンデンサーを通って循環するアンモニア冷媒回路と、前記アンモニア冷媒に生じる発熱により前記二酸化炭素冷媒をホットガス化するホットガス熱交換器と、前記二酸化炭素・ホットガスを前記負荷側冷却器内に供給して除霜するデフロスト回路と、前記負荷側冷却器に対する接続を前記二酸化炭素冷媒回路と前記デフロスト回路の間で切り換える切り換え手段と、を備える二酸化炭素循環・冷却システムにおいて、
前記デフロスト回路内に、前記二酸化炭素・ホットガスを貯留しておくバッファ手段と、該バッファ手段内の前記二酸化炭素・ホットガスの貯留が所定量超えた際に、その超えた二酸化炭素・ホットガスを前記負荷側冷却器と前記カスケードコンデンサーの間に逃がすホットガス・バイパス手段を設けたことを特徴とする二酸化炭素循環・冷却システムにおけるデフロスト装置。 - 上記ホットガス・バイパス手段は、一端部側を前記デフロスト回路に接続し、かつ他端部側を前記負荷側冷却器と前記カスケードコンデンサーの間に接続してなる圧力逃がし配管と、該圧力逃がし配管を通る前記二酸化炭素・ホットガスの量を調整する調整弁、を備えてなることを特徴とする請求項1記載の二酸化炭素循環・冷却システムにおけるデフロスト装置。
Priority Applications (1)
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---|---|---|---|
JP2011082215A JP5084933B2 (ja) | 2011-04-01 | 2011-04-01 | 二酸化炭素循環・冷却システムにおけるデフロスト装置 |
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JP2011082215A JP5084933B2 (ja) | 2011-04-01 | 2011-04-01 | 二酸化炭素循環・冷却システムにおけるデフロスト装置 |
Publications (2)
Publication Number | Publication Date |
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JP2012215370A JP2012215370A (ja) | 2012-11-08 |
JP5084933B2 true JP5084933B2 (ja) | 2012-11-28 |
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JP2011082215A Active JP5084933B2 (ja) | 2011-04-01 | 2011-04-01 | 二酸化炭素循環・冷却システムにおけるデフロスト装置 |
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JP (1) | JP5084933B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8670010B2 (en) | 2011-03-30 | 2014-03-11 | Brother Kogyo Kabushiki Kaisha | Method for controlling printing speed of thermal head |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE903839A (fr) * | 1985-12-12 | 1986-04-01 | Hooydonck Guy Van | Machine frigorifique. |
JP4413128B2 (ja) * | 2004-11-25 | 2010-02-10 | 新明和工業株式会社 | 超低温冷却装置 |
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 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8670010B2 (en) | 2011-03-30 | 2014-03-11 | Brother Kogyo Kabushiki Kaisha | Method for controlling printing speed of thermal head |
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JP2012215370A (ja) | 2012-11-08 |
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