JPS6219571U - - Google Patents
Info
- Publication number
- JPS6219571U JPS6219571U JP10968585U JP10968585U JPS6219571U JP S6219571 U JPS6219571 U JP S6219571U JP 10968585 U JP10968585 U JP 10968585U JP 10968585 U JP10968585 U JP 10968585U JP S6219571 U JPS6219571 U JP S6219571U
- Authority
- JP
- Japan
- Prior art keywords
- liquid level
- upper limit
- lower limit
- refrigeration system
- accumulator
- 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.)
- Granted
Links
- 239000007788 liquid Substances 0.000 claims description 9
- 238000005057 refrigeration Methods 0.000 claims description 7
- 239000003507 refrigerant Substances 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Air Conditioning Control Device (AREA)
Description
第１図は、従来の冷凍空調装置の系統図、第２
図は、本考案の概略を示す系統図、第３図は本考
案を車軸用冷凍装置に実施した例を示した系統図
、第４図は本考案の起動から圧縮機が容量制御に
至らない状態までの作動を示したグラフであつて
イは蒸発器入口温度と時間の関係、ロはアキユム
レータ内の冷媒液レベルと時間の開係、ハは膨張
弁の弁開度と時間の関係、ニは圧縮機吸入圧力と
時間の関係、ホは圧縮機の容量と時間の関係を示
したものである。第５図は、圧縮機の容量が変化
する状態における作動を示したグラフであつて、
イは蒸発器入口空気温度と時間の関係、ロはアキ
ユムレータ内冷媒液レベルと時間の関係、ハは膨
張弁の弁開度と時間の関係、ニは圧縮機吸入圧力
と時間の関係、ホは圧縮機容量と時間の関係を示
したものである。
１，１２…圧縮機、３…アキユムレータ、４…
蒸発器、５…凝縮器、６…絞り機構、６１…（外
部制御形）膨張弁、７…コントローラ、８…検知
機構、８１，８２…液レベルセンサー、１０，１
１…サーミスタ。
Figure 1 is a system diagram of a conventional refrigeration and air conditioner;
The figure is a system diagram showing an outline of the present invention, Figure 3 is a system diagram showing an example of implementing the present invention in an axle refrigeration system, and Figure 4 is a system diagram showing an example in which the present invention is applied to an axle refrigeration system. Figure 4 shows that the compressor does not reach capacity control after the start of the present invention. This is a graph showing the operation up to the state, where A is the relationship between the evaporator inlet temperature and time, B is the relationship between the refrigerant liquid level in the accumulator and time, C is the relationship between the expansion valve opening degree and time, and D is the relationship between the opening degree of the expansion valve and time. shows the relationship between compressor suction pressure and time, and e shows the relationship between compressor capacity and time. FIG. 5 is a graph showing the operation when the capacity of the compressor changes,
A is the relationship between the evaporator inlet air temperature and time, B is the relationship between the refrigerant liquid level in the accumulator and time, C is the relationship between the expansion valve opening degree and time, D is the relationship between compressor suction pressure and time, and E is the relationship between the compressor suction pressure and time. This shows the relationship between compressor capacity and time. 1, 12... Compressor, 3... Accumulator, 4...
Evaporator, 5... Condenser, 6... Throttle mechanism, 61... (externally controlled) expansion valve, 7... Controller, 8... Detection mechanism, 81, 82... Liquid level sensor, 10, 1
1...Thermistor.
補正 昭６０．１０．８
図面の簡単な説明を次のように補正する。
明細書第１３頁、下から２行目「６…絞り機構
、」を削除するとともに「６１」を「６」と補正
する。Amendment October 8, 1980 The brief description of the drawing is amended as follows. On page 13 of the specification, the second line from the bottom, "6...Aperture mechanism," is deleted and "61" is corrected to "6."
Claims (1)
機との間に配置されたアキユムレーターと前記凝
縮器と蒸発器との間に配置された絞り機構とを備
えた冷凍装置において、前記絞り機構として外部
信号により弁開度を制御する外部制御形膨張弁を
用い、前記アキユムレーター内に冷媒液面レベル
検知器を設け、該検知器の検知出力信号にて、上
記アキユムレータ内の冷媒液レベルを一定範囲内
に保つように、前記外部制御形膨張弁の弁開度を
制御するようにしたことを特徴とする冷凍装置。 ２ 実用新案登録請求の範囲第１項の冷凍装置に
おいて、前記液面レベル検知器は、上限レベルセ
ンサと下限レベルセンサとを備え、これにより、
液面レベルが上限以上か、下限以下か、上限と下
限の間かを検知するようになし、前記外部制御形
膨張弁は、液面レベルが上限以上のとき弁開度を
小さくされ、下限以下のときは弁開度を大きくさ
れ、上限と下限の間では弁開度をそのまま維持す
るように、制御されるようにしたことを特徴とす
る冷凍装置。[Claims for Utility Model Registration] 1 A compressor, a condenser, an evaporator, an accumulator disposed between the evaporator and the compressor, and a throttling mechanism disposed between the condenser and the evaporator. In the refrigeration system equipped with the above, an externally controlled expansion valve whose opening degree is controlled by an external signal is used as the throttling mechanism, a refrigerant liquid level detector is provided in the accumulator, and a detection output signal of the detector is used to A refrigeration system characterized in that the opening degree of the externally controlled expansion valve is controlled so as to maintain the refrigerant liquid level in the accumulator within a certain range. 2 Utility Model Registration In the refrigeration system according to claim 1, the liquid level detector includes an upper limit level sensor and a lower limit level sensor, thereby:
It detects whether the liquid level is above the upper limit, below the lower limit, or between the upper limit and the lower limit, and the externally controlled expansion valve reduces the valve opening when the liquid level is above the upper limit, and when the liquid level is below the lower limit. 1. A refrigeration system characterized in that the valve opening is increased when , and the valve opening is maintained as it is between an upper limit and a lower limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985109685U JPH068461Y2 (en) | 1985-07-19 | 1985-07-19 | Refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985109685U JPH068461Y2 (en) | 1985-07-19 | 1985-07-19 | Refrigeration equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6219571U true JPS6219571U (en) | 1987-02-05 |
| JPH068461Y2 JPH068461Y2 (en) | 1994-03-02 |
Family
ID=30988005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985109685U Expired - Lifetime JPH068461Y2 (en) | 1985-07-19 | 1985-07-19 | Refrigeration equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH068461Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH074796A (en) * | 1993-06-18 | 1995-01-10 | Mitsubishi Electric Corp | Air-conditioning equipment |
| JP2017198376A (en) * | 2016-04-26 | 2017-11-02 | 株式会社デンソー | Refrigeration cycle device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5599567A (en) * | 1979-01-22 | 1980-07-29 | Kajima Corp | Coolant flow controller |
-
1985
- 1985-07-19 JP JP1985109685U patent/JPH068461Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5599567A (en) * | 1979-01-22 | 1980-07-29 | Kajima Corp | Coolant flow controller |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH074796A (en) * | 1993-06-18 | 1995-01-10 | Mitsubishi Electric Corp | Air-conditioning equipment |
| JP2017198376A (en) * | 2016-04-26 | 2017-11-02 | 株式会社デンソー | Refrigeration cycle device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH068461Y2 (en) | 1994-03-02 |
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