JPH0439581A - Refrigerating device - Google Patents
Refrigerating deviceInfo
- Publication number
- JPH0439581A JPH0439581A JP14456590A JP14456590A JPH0439581A JP H0439581 A JPH0439581 A JP H0439581A JP 14456590 A JP14456590 A JP 14456590A JP 14456590 A JP14456590 A JP 14456590A JP H0439581 A JPH0439581 A JP H0439581A
- Authority
- JP
- Japan
- Prior art keywords
- sensor
- refrigerant
- level
- accumulator
- liquid refrigerant
- 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 claims abstract description 48
- 239000007788 liquid Substances 0.000 claims abstract description 30
- 238000005057 refrigeration Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
Landscapes
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、冷媒の適性充填量を検知する手段を備えた冷
凍装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a refrigeration system equipped with a means for detecting an appropriate filling amount of refrigerant.
［従来の技術］
周知のように冷凍装置では、ガス状冷媒を圧縮機で圧縮
して高温高圧のガス状冷媒とし、凝縮器へ送る。凝縮器
は高温高圧のガス状冷媒を冷却して低温高圧の液状冷媒
とする。低温高圧の液状冷媒は絞り機構へ送られ、断熱
膨張され、低温低圧の霧状冷媒となる。霧状冷媒は蒸発
器へ送られ、蒸発して蒸発器の周囲を冷却し、圧縮器に
再び戻る。[Prior Art] As is well known, in a refrigeration system, a compressor compresses a gaseous refrigerant into a high-temperature, high-pressure gaseous refrigerant, which is then sent to a condenser. The condenser cools the high-temperature, high-pressure gaseous refrigerant into a low-temperature, high-pressure liquid refrigerant. The low-temperature, high-pressure liquid refrigerant is sent to the throttling mechanism, where it is adiabatically expanded and becomes a low-temperature, low-pressure atomized refrigerant. The atomized refrigerant is sent to the evaporator, evaporates to cool the area around the evaporator, and returns to the compressor.
ここで、蒸発器と圧縮器の間には余分な冷媒を液状にし
て溜めておくアキュームレータを備えたものが知られて
いる。Here, it is known that an accumulator is provided between the evaporator and the compressor to store excess refrigerant in a liquid state.
この様なアキュームレータを含む冷凍装置では、冷媒充
填量を知るために、アキュームレータの外側表面に温度
計を設け、アキュームレータ内部に圧力計を設けている
。そして、これら温度計と圧力計の測定値に基づき、ア
キュームレータ内の液状冷媒の量を求めて冷媒の適正充
填量を検知している。In a refrigeration system including such an accumulator, a thermometer is provided on the outer surface of the accumulator and a pressure gauge is provided inside the accumulator in order to know the amount of refrigerant charged. Based on the measured values of these thermometers and pressure gauges, the amount of liquid refrigerant in the accumulator is determined to detect the appropriate amount of refrigerant.
［発明が解決しようとする課題］
しかしながら、従来の冷凍装置では、温度計と圧力計と
を用いて冷媒の充填量を検知するために、その測定方法
、および計器の精度によって、測定結果が異なり、冷媒
の充填量が適正かどうか正確に知ることができないとい
う問題点がある。[Problems to be Solved by the Invention] However, in conventional refrigeration equipment, the amount of refrigerant charged is detected using a thermometer and a pressure gauge, so the measurement results may vary depending on the measurement method and accuracy of the instrument. However, there is a problem in that it is not possible to accurately know whether the amount of refrigerant charged is appropriate.
また、アキュームレータ内の液状冷媒の量が一定量以上
になると温度計に変化がなくなり、冷媒が過充填されて
も分からないという問題点もある。Another problem is that when the amount of liquid refrigerant in the accumulator exceeds a certain level, there is no change in the temperature gauge, and it is not possible to tell even if the refrigerant is overfilled.
本発明は、計器の精度、および測定方法に左右されるこ
と無く、正確に冷媒の適性充填量を検知することができ
る冷凍装置を提供することを目的とする。SUMMARY OF THE INVENTION An object of the present invention is to provide a refrigeration system that can accurately detect the appropriate amount of refrigerant to be charged, regardless of the accuracy of the meter and the measuring method.
［課題を解決するための手段］
本発明によれば、液状冷媒を蓄積するアキュームレータ
を含む冷凍装置において、前記アキュームレータの内部
に前記液状冷媒の液面の高さが所定の高さになったか否
かを検知するセンサーを設け、該センサーに表示器を接
続し、前記冷媒の液面が前期所定の高さになったことを
前記センサーが検知したことを前記表示器に表示させる
ようにしたことを特徴とする冷凍装置が得られる。[Means for Solving the Problems] According to the present invention, in a refrigeration system including an accumulator that accumulates a liquid refrigerant, it is possible to check whether the level of the liquid refrigerant within the accumulator reaches a predetermined height. A sensor is provided to detect whether the refrigerant has reached a predetermined height, and an indicator is connected to the sensor, and the indicator displays that the sensor has detected that the liquid level of the refrigerant has reached a predetermined height. A refrigeration device is obtained.
［作用コ
センサーは液状冷媒に触れたときに検出信号を出力する
。検出信号は表示器に送られ、液面が所定の高さになっ
たことを表示する。[Action cosensor outputs a detection signal when it comes into contact with liquid refrigerant. The detection signal is sent to a display indicating that the liquid level has reached a predetermined height.
［実施例コ 以下、図面を参照して本発明の詳細な説明する。[Example code] Hereinafter, the present invention will be described in detail with reference to the drawings.
第１図に本発明の第１の実施例を示す。FIG. 1 shows a first embodiment of the present invention.
第１図に示す冷凍装置は、圧縮機１１、凝縮器１２、絞
り機構１３、蒸発器１４、およびアキュームレータ１５
を備え、冷媒管で接続されている。The refrigeration system shown in FIG. 1 includes a compressor 11, a condenser 12, a throttle mechanism 13, an evaporator 14, and an accumulator 15.
It is equipped with a refrigerant pipe and connected by a refrigerant pipe.
冷凍装置の動作についてよく知られており、また、従来
の技術の欄で簡単に述べたので、その説明は省略する。Since the operation of the refrigeration system is well known and was briefly discussed in the prior art section, a detailed description thereof will be omitted.
本実施例のアキュームレータ１５の内部には、冷媒が適
正量充填されたときの液状冷媒の液面の高さと等しい位
置に、センサー１６が取り付けられている。そして、こ
のセンサー１６には表示器１７が接続されている。Inside the accumulator 15 of this embodiment, a sensor 16 is attached at a position equal to the level of the liquid refrigerant when an appropriate amount of refrigerant is filled. A display 17 is connected to this sensor 16.
センサー１６は、ガス状冷媒と液状冷媒の熱伝導率の違
いから、液状冷媒を検知するセンサーである。The sensor 16 is a sensor that detects a liquid refrigerant based on the difference in thermal conductivity between the gaseous refrigerant and the liquid refrigerant.
冷媒を冷凍装置に充填すると、アキュームレータ内の液
状冷媒の液面が上昇する。従って、センサー１６は液面
が所定の高さ、即ち、センサーが取り付けられた高さに
達すると検知信号を出力する。検知信号は表示器１７に
送られ、センサー１６が液状冷媒の液面の高さが所定の
高さになったことを表示する。こうして、冷媒の充填量
が適正量であるか否かを知ることができる。When the refrigerant is filled into the refrigeration system, the level of the liquid refrigerant in the accumulator rises. Therefore, the sensor 16 outputs a detection signal when the liquid level reaches a predetermined height, that is, the height at which the sensor is attached. The detection signal is sent to the display 17, and the sensor 16 indicates that the level of the liquid refrigerant has reached a predetermined height. In this way, it is possible to know whether the amount of refrigerant charged is appropriate.
第２図に本発明の第２の実施例を示す。第２図ではアキ
ュームレータ１５とセンサー１６、および表示器のみを
示し、他は省略しである。FIG. 2 shows a second embodiment of the invention. In FIG. 2, only the accumulator 15, sensor 16, and display are shown, and the others are omitted.
第２の実施例ではアキュームレータ１５の内部にセンサ
ー１６を２個設けている。In the second embodiment, two sensors 16 are provided inside the accumulator 15.
センサー１６ｇは、第１の実施例同様、適正量液面に相
当する高さに設けられている。また、センサー１６ｂは
、過充填許容範囲の上限の高さに設けられている。As in the first embodiment, the sensor 16g is provided at a height corresponding to the appropriate level of liquid. Further, the sensor 16b is provided at the upper limit height of the overfill tolerance range.
また、センサー１６を２個設けたことに伴って、表示器
１７も表示部を２個有するものが用いられている。Further, in accordance with the provision of two sensors 16, the display device 17 also has two display sections.
これらのセンサー１６ａ、ｂは、それぞれ第１の実施例
と同様に熱伝導率から液状冷媒がセンサー１６取り付は
位置の高さになったことを検出する。従って、センサー
１６ａが検出信号を出力し、センサー１６ｂが検出信号
を出力していないしていない場合が適正量であると判断
することができる。These sensors 16a and 16b each detect from the thermal conductivity that the liquid refrigerant has reached the height of the sensor 16 installation position, as in the first embodiment. Therefore, it can be determined that the amount is appropriate if the sensor 16a outputs a detection signal and the sensor 16b does not output a detection signal.
なお、上記実施例では、熱伝導率の違いから液状冷媒を
検出するセンサーを用いたが、液状冷媒の液面の高さが
検出できるものであればどの様なセンサーであっても良
い。In the above embodiment, a sensor that detects the liquid refrigerant based on the difference in thermal conductivity is used, but any sensor may be used as long as it can detect the height of the liquid refrigerant level.
また、センサーの数は上記実施例に限られるものではな
い。Further, the number of sensors is not limited to the above embodiment.
［発明の効果コ
本発明によれば、アキュームレータ内に液状冷媒の液面
の高さを検知できるセンサーを設け、液面が所定高さに
なったことを表示させるようにしたことで、冷媒の充填
量が適正であるかどうか、精度よく知ることができる。[Effects of the Invention] According to the present invention, a sensor capable of detecting the height of the liquid refrigerant level is provided in the accumulator, and a display is displayed when the liquid level reaches a predetermined height. You can accurately determine whether the filling amount is appropriate.
第１図は本発明の第１の実施例の構成図。第２図は第２
の実施例の部分構成図である。
１１・・・圧縮器、１２・・・凝縮器、１３・・・絞り
機構、１４・・・蒸発器、１５・・・アキュームレータ
、１６・・・センサー １７・・・表示器。
第１図
第２図FIG. 1 is a configuration diagram of a first embodiment of the present invention. Figure 2 is the second
FIG. 2 is a partial configuration diagram of an embodiment of the present invention. DESCRIPTION OF SYMBOLS 11... Compressor, 12... Condenser, 13... Throttle mechanism, 14... Evaporator, 15... Accumulator, 16... Sensor 17... Indicator. Figure 1 Figure 2
Claims (1)
凍装置において、 前記アキュームレータの内部に前記液状冷媒の液面の高
さが所定の高さになったか否かを検知するセンサーを設
け、該センサーに表示器を接続し、前記液状冷媒の液面
の高さが前記所定の高さになったことを前記センサーが
検知したことを前記表示器に表示させるようにしたこと
を特徴とする冷凍装置。1. In a refrigeration system including an accumulator that accumulates liquid refrigerant, a sensor is provided inside the accumulator to detect whether or not a liquid level of the liquid refrigerant has reached a predetermined height, and an indicator is connected to the sensor. The refrigeration apparatus is characterized in that the display device displays that the sensor has detected that the level of the liquid refrigerant has reached the predetermined height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14456590A JPH0439581A (en) | 1990-06-04 | 1990-06-04 | Refrigerating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14456590A JPH0439581A (en) | 1990-06-04 | 1990-06-04 | Refrigerating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0439581A true JPH0439581A (en) | 1992-02-10 |
Family
ID=15365192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14456590A Pending JPH0439581A (en) | 1990-06-04 | 1990-06-04 | Refrigerating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0439581A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5895585A (en) * | 1996-05-23 | 1999-04-20 | Honda Giken Kogyo Kabushiki Kaisha | Device for confirming opening of welding gun |
| JP2007075823A (en) * | 2005-09-09 | 2007-03-29 | Daihatsu Motor Co Ltd | Method of detecting time for exchanging welding electrode and resistance welding equipment |
-
1990
- 1990-06-04 JP JP14456590A patent/JPH0439581A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5895585A (en) * | 1996-05-23 | 1999-04-20 | Honda Giken Kogyo Kabushiki Kaisha | Device for confirming opening of welding gun |
| JP2007075823A (en) * | 2005-09-09 | 2007-03-29 | Daihatsu Motor Co Ltd | Method of detecting time for exchanging welding electrode and resistance welding equipment |
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