JPH01144760U - - Google Patents
Info
- Publication number
- JPH01144760U JPH01144760U JP3756588U JP3756588U JPH01144760U JP H01144760 U JPH01144760 U JP H01144760U JP 3756588 U JP3756588 U JP 3756588U JP 3756588 U JP3756588 U JP 3756588U JP H01144760 U JPH01144760 U JP H01144760U
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- fluid
- inverter
- condenser
- detection device
- 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
- 238000001816 cooling Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims 9
- 239000003507 refrigerant Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 1
Landscapes
- Control Of Non-Positive-Displacement Pumps (AREA)
Description
第１図は本考案の冷凍機の冷却装置の一実施例
を示すブロツク図、第２図は第１図に示す実施例
に備えられるコントローラの入力電流と出力電圧
との相関関係を示す特性図、第３図は第１図に示
す実施例に備えられる検出装置で検出される冷却
水温度とモータの回転数との相関関係を示す特性
図、第４図は従来の冷凍機の冷却装置の一例を示
すブロツク図である。
１……冷凍機、１ａ……凝縮器、２……クーリ
ングタワー、３……ポンプ、４……モータ、７…
…インバータ、８……検出装置、９……コントロ
ーラ、９ａ……変換器、９ｂ……リミツタ。
Fig. 1 is a block diagram showing an embodiment of the refrigerator cooling device of the present invention, and Fig. 2 is a characteristic diagram showing the correlation between the input current and output voltage of the controller provided in the embodiment shown in Fig. 1. , FIG. 3 is a characteristic diagram showing the correlation between the cooling water temperature detected by the detection device provided in the embodiment shown in FIG. 1 and the rotation speed of the motor, and FIG. FIG. 2 is a block diagram showing an example. 1... Refrigerator, 1a... Condenser, 2... Cooling tower, 3... Pump, 4... Motor, 7...
...Inverter, 8...Detection device, 9...Controller, 9a...Converter, 9b...Limiter.
Claims (1)
を通過した流体を冷却するクーリングタワーと、
このクーリングタワーで冷却された流体を前記凝
縮器に送り込むポンプと、このポンプを駆動する
モータと、このモータの回転数を制御するインバ
ータとを備え、前記凝縮器を前記ポンプにより循
環される流体を介し冷却するようにした冷凍機の
冷却装置において、前記ポンプと凝縮器間に、前
記流体の温度を検出しこの流体温度を信号として
出力する検出装置を設置するとともに、この検出
装置と前記インバータとの間に介設され、検出装
置で検出された流体温度とあらかじめ定められる
温度とを比較し、前記流体温度があらかじめ定め
られる温度より高いとき前記モータを所定回転数
で回転させる指令をインバータに発し、一方、前
記流体温度があらかじめ定められる温度より低い
ときこれらの流体温度とあらかじめ定められる温
度との温度差に応じて前記モータの回転数を前記
所定回転数より低下させる指令をインバータに発
するコントローラ設けたことを特徴とする冷凍機
の冷却装置。 A condenser that condenses the refrigerant of the refrigerator, a cooling tower that cools the fluid that has passed through the condenser,
The cooling tower is equipped with a pump that sends the fluid cooled by the cooling tower to the condenser, a motor that drives the pump, and an inverter that controls the rotation speed of the motor. In the cooling device for the refrigerator, a detection device for detecting the temperature of the fluid and outputting the fluid temperature as a signal is installed between the pump and the condenser, and a detection device is installed between the detection device and the inverter. Comparing the fluid temperature detected by a detection device interposed between the fluid temperature and a predetermined temperature, and issuing a command to an inverter to rotate the motor at a predetermined rotation speed when the fluid temperature is higher than the predetermined temperature; On the other hand, a controller is provided that issues a command to the inverter to lower the rotational speed of the motor below the predetermined rotational speed according to the temperature difference between the fluid temperature and the predetermined temperature when the fluid temperature is lower than the predetermined temperature. A cooling device for a refrigerator characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3756588U JPH01144760U (en) | 1988-03-24 | 1988-03-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3756588U JPH01144760U (en) | 1988-03-24 | 1988-03-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01144760U true JPH01144760U (en) | 1989-10-04 |
Family
ID=31264143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3756588U Pending JPH01144760U (en) | 1988-03-24 | 1988-03-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01144760U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007298235A (en) * | 2006-05-01 | 2007-11-15 | Mitsubishi Heavy Ind Ltd | Heat source system and its control method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60134165A (en) * | 1983-12-23 | 1985-07-17 | 三菱電機株式会社 | Fluid carrying controller for refrigeration air conditioner |
-
1988
- 1988-03-24 JP JP3756588U patent/JPH01144760U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60134165A (en) * | 1983-12-23 | 1985-07-17 | 三菱電機株式会社 | Fluid carrying controller for refrigeration air conditioner |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007298235A (en) * | 2006-05-01 | 2007-11-15 | Mitsubishi Heavy Ind Ltd | Heat source system and its control method |
| JP4690935B2 (en) * | 2006-05-01 | 2011-06-01 | 三菱重工業株式会社 | Heat source system and control method thereof |
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