CN102916390A - Protection device with function of cutting off power during water supply failure - Google Patents
Protection device with function of cutting off power during water supply failure Download PDFInfo
- Publication number
- CN102916390A CN102916390A CN201210439768XA CN201210439768A CN102916390A CN 102916390 A CN102916390 A CN 102916390A CN 201210439768X A CN201210439768X A CN 201210439768XA CN 201210439768 A CN201210439768 A CN 201210439768A CN 102916390 A CN102916390 A CN 102916390A
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- cutting
- water supply
- protection device
- pressure switch
- circuit
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Abstract
The invention relates to a protection device with a function of cutting off power during a water supply failure. The protection device comprises a pressure switch which is arranged on a pipeline at the front part of a water faucet, wherein the pressure switch, together with a line, a press button, an alternating current contactor and a fuse, is connected in series with a circuit of heating equipment through a line to form a circuit. After the device is applied to a distillation device, a reflowing device and a rotary evaporation device, a power supply of the heating equipment such as an electric heating sleeve and a constant-temperature water bath is cut off in time during water supply failure, so that an organic solvent in a distillation bottle is prevented from being continuously gasified, harm accidents are avoided, and potential safety hazards of the laboratory are eliminated.
Description
Technical field
The present invention relates to a kind of protective device, especially a kind of protective device with the power down function of cutting off the water.
Background technology
Electric heating cover, water bath with thermostatic control are chemical classes, pharmacy class laboratory small-sized firing equipment commonly used, and normal and distillation, backflow, rotary evaporating device are united use.If cutting off the water suddenly, the laboratory can cause the chilled(cooling) water supply (CWS) in the said apparatus to be interrupted, after the organic solvent in the cucurbit of electric heating cover, water bath with thermostatic control heating became steam and entered condenser this moment, the timely condensation meeting that can not get cooling water is gathered too much in pipeline liquid injecting device and is set off an explosion, or is discharged into and causes fire in the laboratory or cause environmental pollution.
Summary of the invention
The objective of the invention is for overcoming above-mentioned the deficiencies in the prior art; a kind of protective device with the power down function of cutting off the water is provided; this application of installation is behind distillation, backflow, rotary evaporating device; in time cut off the power supply of the firing equipments such as electric heating cover, water bath with thermostatic control when cutting off the water suddenly in the laboratory; avoid the organic solvent in the cucurbit to continue vaporization; avoid the generation of hazardous events, eliminated the potential safety hazard in laboratory.
For achieving the above object, the present invention adopts following technical proposals:
A kind of protective device with the power down function of cutting off the water comprises the pressure switch that is arranged on the procephalic pipeline of the fire hose, and described pressure switch is connected on by circuit and button, A.C. contactor and fuse and forms a loop on the circuit of firing equipment.
During application, when cutting off the water, the circuit of pressure switch control firing equipment disconnects, and avoids the organic solvent in the cucurbit to continue vaporization, has avoided the generation of hazardous events, has eliminated the potential safety hazard in laboratory.
Description of drawings
Fig. 1 is circuit diagram of the present invention;
Fig. 2 is scheme of installation of the present invention;
Wherein: the FU----fuse, the SB----button stops, and the SA----button is opened, SP----pressure switch, KM----A.C. contactor, 1. firing equipment, 2. tap.
Embodiment
The present invention is further described below in conjunction with drawings and Examples.
As shown in Figure 1 and Figure 2; a kind of protective device with the power down function of cutting off the water; comprise the pressure switch SP on the pipeline that is arranged at tap 2 front portions, described pressure switch SP stops SB, button by circuit and button and opens on the circuit that SSA, A.C. contactor KM and fuse FU be connected on firing equipment 1 and form a loop.
During application, when cutting off the water, the circuit of pressure switch SP control firing equipment 1 disconnects, and avoids the organic solvent in the cucurbit to continue vaporization, has avoided the generation of hazardous events, has eliminated the potential safety hazard in laboratory.
Claims (1)
1. protective device with the power down function of cutting off the water; it is characterized in that; comprise the pressure switch that is arranged on the procephalic pipeline of the fire hose, described pressure switch is connected on by circuit and button, A.C. contactor and fuse and forms a loop on the circuit of firing equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210439768XA CN102916390A (en) | 2012-11-07 | 2012-11-07 | Protection device with function of cutting off power during water supply failure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210439768XA CN102916390A (en) | 2012-11-07 | 2012-11-07 | Protection device with function of cutting off power during water supply failure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102916390A true CN102916390A (en) | 2013-02-06 |
Family
ID=47614672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210439768XA Pending CN102916390A (en) | 2012-11-07 | 2012-11-07 | Protection device with function of cutting off power during water supply failure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102916390A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2239056Y (en) * | 1995-12-15 | 1996-10-30 | 东营市人民医院 | Alarm apparatus for water-supply cut-off and power cut of electric heating distilled water apparatus |
| CN2592908Y (en) * | 2003-01-14 | 2003-12-17 | 董祝元 | Fully-automatic water-supply-drain protection controller for water pump |
| CN201159316Y (en) * | 2008-02-26 | 2008-12-03 | 王磊 | Device for prevent accidental long-time water leakage |
| GB2455647A (en) * | 2007-12-14 | 2009-06-24 | Tsann Kuen | Automatically replenishing water for an iron boiler under the condition of continuous steaming |
| CN202930908U (en) * | 2012-11-07 | 2013-05-08 | 国网技术学院 | Protective device with functions of cutting off water supply and power supply |
-
2012
- 2012-11-07 CN CN201210439768XA patent/CN102916390A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2239056Y (en) * | 1995-12-15 | 1996-10-30 | 东营市人民医院 | Alarm apparatus for water-supply cut-off and power cut of electric heating distilled water apparatus |
| CN2592908Y (en) * | 2003-01-14 | 2003-12-17 | 董祝元 | Fully-automatic water-supply-drain protection controller for water pump |
| GB2455647A (en) * | 2007-12-14 | 2009-06-24 | Tsann Kuen | Automatically replenishing water for an iron boiler under the condition of continuous steaming |
| CN201159316Y (en) * | 2008-02-26 | 2008-12-03 | 王磊 | Device for prevent accidental long-time water leakage |
| CN202930908U (en) * | 2012-11-07 | 2013-05-08 | 国网技术学院 | Protective device with functions of cutting off water supply and power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130206 |