CN2366876Y - Humidity monitoring instrument for cold medium - Google Patents
Humidity monitoring instrument for cold medium Download PDFInfo
- Publication number
- CN2366876Y CN2366876Y CN 99234384 CN99234384U CN2366876Y CN 2366876 Y CN2366876 Y CN 2366876Y CN 99234384 CN99234384 CN 99234384 CN 99234384 U CN99234384 U CN 99234384U CN 2366876 Y CN2366876 Y CN 2366876Y
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- CN
- China
- Prior art keywords
- detection circuit
- refrigerant
- alarm
- circuit
- switch
- 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.)
- Expired - Fee Related
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model relates to an instrument capable of monitoring the water content in the cooling medium of a refrigerator, which is composed of a detection circuit and an alarm executive circuit. The detection circuit is at least composed of a pair of exploring electrodes, a current inductive switch, and a direct current power supply which are connected in series. The alarm executive circuit at least comprises a sounder, and moreover, the executive switch end of the current inductive switch is connected to the alarm executive circuit as an alarm control switch. The utility model adopts an electrical measurement mode to realize the monitoring of the water content in the cooling medium. The electrical measurement mode can control the sensitivity of the water content exploration through regulating the current inductive switch. The utility model has high sensitivity and clear and explicit indication because of the adoption of acoustic and light alarm.
Description
The utility model is a kind of instrument that monitors moisture content in the refrigerating machine refrigerant.
Usually refrigerating machine adopts fluorine Lyons as refrigerant, does not allow to contain moisture content in this refrigerant.But, corroded or heat exchanger tube when having crack and aperture hidden danger at the heat exchanger tube of refrigerating machine because of manufacturing deficiency, in the course of time, chilled water will enter heat exchanger tube and sneak into refrigerant.When water content in the refrigerant is big, tend to make compressor abrasion, cause motor phase fault, winding to damage, refrigerating machine can't be moved.For addressing this problem, prior art adopts a kind of magic eye formula discolour silica gel to supervise the moisture content that shows in the refrigerant usually, as SA-13 type discolour silica gel produced in USA.This variable color silicon is located at a certain place of refrigerant process, and when in the refrigerant not during water content, it is green that this silica gel is; When containing moisture content in the refrigerant, this silica gel begins variable color; When this silica gel yellowing, the moisture content that contains trial of strength in the refrigerant is described, at this moment, must shut down maintenance.The major defect of this surveillance style is: show not distinctly, usually do not see Chu, and reaction sensitivity is relatively poor, often show Neutral colour, bad explanation water cut actual conditions; Moreover this silica gel can only disposablely use, and needs often to change, and makes troubles to the user.
The purpose of this utility model is the shortcoming at prior art, provides a kind of and is quick on the draw, indicates clear and definite refrigerant moisture content monitor.
For achieving the above object, solution of the present utility model is as follows: it is made up of a detection circuit and a warning executive circuit, described detection circuit is made of a pair of exploring electrode, induction by current switch and direct supply series connection at least, described warning executive circuit comprises a squealer at least, and the execution switch terminals of induction by current switch is connected in this warning executive circuit as Alarming control switch.
By above-mentioned solution as can be seen, a kind of electrical measurement mode that adopts the utility model has realized that refrigerant moisture content monitors, promptly when water content in the refrigerant reaches the value that sets, the induction by current switch in the detection circuit can corresponding actions, connect the warning executive circuit and carry out sound, light is reported to the police.This electrical measurement mode can be controlled the sensitivity that moisture content is surveyed by regulating the induction by current switch, and sensitivity is higher, and simultaneously, its employing sound, light are reported to the police and made indication clear and definite.Therefore, the utility model compared with the prior art, have reaction sensitivity height, indication clearly reach can prolonged and repeated use advantage.
Describe structure of the present utility model in detail according to embodiment below.
Fig. 1, circuit theory diagrams of the present utility model.
Referring to Fig. 1, the detection circuit of this instrument is made of a pair of exploring electrode 1,2, induction by current switch 3 and direct supply 4 series connection at least, wherein the spacing between the exploring electrode 1,2 is 1～3 millimeter, and induction by current switch 3 preferably adopts relay J (can adopt the MY4N-D2 type relay of Japan or homemade DZ-27 DV24V relay).In order clearly to indicate the size of water content, the milliampere reometer 5 of can in this detection circuit, connecting, and the electric current and the refrigerant moisture content actual content of the detection circuit of flowing through demarcated, just can read the content of actual moisture content in the refrigerant definitely by calibration curve.The executive circuit of this instrument comprises a squealer 6 at least, and this squealer can adopt electronic bell, electrophonic musical device etc., and the normally open contact 7 of described relay J is as the gauge tap of this squealer.In order to make the indication of reporting to the police have visual effect simultaneously, can also in executive circuit, be connected in series a luminous indication 8, this luminous indication can adopt the electron luminescence device of stroboscopic, also can adopt common luminous electronic tube etc.During use, exploring electrode 1,2 is seated in the refrigerant of refrigerating machine, when containing moisture content in the refrigerant, conducting between two exploring electrodes, have electric current to flow through in the detection circuit, the size of this electric current can be read by milliampere reometer 5, and learns the size of actual water content by calibration curve; When water content in the refrigerant increases and when reaching the content value that sets gradually, the also corresponding current value that reaches the relay J action of the magnitude of current in the detection circuit, then relay J action, thus connect executive circuit and send sound, visual alarm.In order to prevent that refrigerating machine from causing damage reporting to the police follow-up reforwarding row, can also in executive circuit, set up the circuit breaking controller spare of refrigerating machine, have a relay J of often opening with a normally closed contact as adopting, normally closed contact wherein just can be used as the power control switch of refrigerating machine.Like this, in relay J normally opened contact closure, normally closed contact disconnects, and makes refrigerating machine out of service.
Claims (3)
1, refrigerant moisture content monitor, it is characterized in that: it is made up of a detection circuit and a warning executive circuit, described detection circuit is made of a pair of exploring electrode, induction by current switch and direct supply series connection at least, described warning executive circuit comprises a squealer at least, and the execution switch terminals of induction by current switch is connected in this warning executive circuit as Alarming control switch.
2, refrigerant moisture content monitor as claimed in claim 1 is characterized in that: also string has a milliampere reometer in described detection circuit.
3, refrigerant moisture content monitor as claimed in claim 1 or 2 is characterized in that: the spacing between the described exploring electrode 1,2 is 1～3 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99234384 CN2366876Y (en) | 1999-02-08 | 1999-02-08 | Humidity monitoring instrument for cold medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99234384 CN2366876Y (en) | 1999-02-08 | 1999-02-08 | Humidity monitoring instrument for cold medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2366876Y true CN2366876Y (en) | 2000-03-01 |
Family
ID=34022564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99234384 Expired - Fee Related CN2366876Y (en) | 1999-02-08 | 1999-02-08 | Humidity monitoring instrument for cold medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2366876Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106540379A (en) * | 2016-12-27 | 2017-03-29 | 上海瑞柯恩激光技术有限公司 | The cooling fluid exchange determination methods of laser therapeutic apparatus |
-
1999
- 1999-02-08 CN CN 99234384 patent/CN2366876Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106540379A (en) * | 2016-12-27 | 2017-03-29 | 上海瑞柯恩激光技术有限公司 | The cooling fluid exchange determination methods of laser therapeutic apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |