CN201723430U - Freeze-drying cooling water pump fault automatic alarm system - Google Patents
Freeze-drying cooling water pump fault automatic alarm system Download PDFInfo
- Publication number
- CN201723430U CN201723430U CN2010202671370U CN201020267137U CN201723430U CN 201723430 U CN201723430 U CN 201723430U CN 2010202671370 U CN2010202671370 U CN 2010202671370U CN 201020267137 U CN201020267137 U CN 201020267137U CN 201723430 U CN201723430 U CN 201723430U
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- alarm
- transformer
- pressure gauge
- power supply
- freeze
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Abstract
The utility model belongs to an alarm device and relates to a freeze-drying cooling water pump fault automatic alarm system. The alarm system comprises an electro connecting pressure gauge mounted on a cooling water outlet pipe. A signal output end of the electro connecting pressure gauge is connected to the alarm device. The alarm device comprises an alarm, a key button, a work indicator, a transformer, a first intermediate relay and a second intermediate relay, wherein the work indicator, the alarm, the transformer input end and the key button are in parallel connection with an alternated current power supply; a branch for the key button is serially connected to the first intermediate relay; the normally open contact thereof controls the power supply of the work indicator, the alarm and the transformer input end; the second intermediate relay is serially connected to a pressure relay in the electro connecting pressure gauge and a transformer output end; and the normally open contact thereof controls the power supply of an alarm branch.
Description
[technical field]
The utility model belongs to warning device, more particularly, relates to a kind of freeze-drying cooling waterpump automatic failure alarm system.
[background technique]
Existing freeze dryer equipment is had relatively high expectations to cooling water pressure, requires more than the pressure 0.25MPa.As being lower than this pressure, freeze dryer will be worked.For guaranteeing this pressure, the cooling waterpump delivery pressure must guarantee more than 0.25MPa.And the on-the-spot no full-time operator on duty of freeze-drying cooling waterpump carries out timing by the refrigeration plant operations staff and patrols and examines.If raw water service pump will be very big to the Workshop Production influence owing to having a power failure, when the fault of water pump aspect reason own causes and shuts down, occurring possibly can not resuming operation or switch to the situation of another raw water service pump as early as possible because discovery is untimely.Particularly freeze-drying workshop freeze dryer, distillation machine can't normally move.Product quality accident may take place, and damages feed liquid and causes great waste.Especially night refrigeration plant do not have under operation operator on duty's the situation, contradiction is particularly outstanding.
[model utility content]
Technical problem to be solved in the utility model is to provide a kind of cooling waterpump automatic failure alarm system, when the cooling waterpump delivery pressure is lower than 0.25MPa, auto alarm system starts, remind the operator to check reason, the normal continuously operation that in time recovers the normal operation of cooling waterpump and realize Workshop Production.
The utility model solves the problems of the technologies described above by the following technical programs: freeze-drying cooling waterpump automatic failure alarm system, comprise the pressure gauge with electric contact that is installed on the cooling water water outlet main pipe, described pressure gauge with electric contact signal output part is connected with warning device.
The utility model technical characteristics also is: described warning device comprises alarm, key button, work indicator light, transformer, first auxiliary reclay, second auxiliary reclay, and described work indicator light, alarm, transformer input end are connected with ac power supply with parallel way with the key button; Described key button place branch road is serially connected with first auxiliary reclay, the power supply of its normally opened contact Control work tutorial light, alarm and transformer input end; Second auxiliary reclay is connected in series with pressure relay and transformer output terminal in the described pressure gauge with electric contact, the power supply of its normally opened contact control alarm branch road.
Principle of the present utility model is: as shown in Figure 1, when key button SA is allocated to the working position, the first auxiliary reclay KA
1Adhesive, work indicator light HL is bright, and expression alarm HA enters working state.Prescribe a time limit when cooling water pressure is lower than the following of pressure gauge with electric contact setting, the pressure relay SP in the pressure gauge with electric contact connects, the second auxiliary reclay KA
2Adhesive, its normally opened contact KA
2Connect, alarm HA sends chimes of doom, reminds operator's cooling waterpump to break down, and in time handles, and recovers the normal state that cooling water is supplied with, and avoids influencing the freeze-drying Production Line.Because of cooling water be by metallic conduit be delivered into freeze-drying, electricity in succession pressure gauge be installed on the metallic conduit, for preventing the electric leakage situation, the protection measure that this device adopts is that major loop adopts earth leakage circuit-breaker Q, when the electric leakage situation, disconnects current supply circuit.
Advantage of the present utility model is: simple in structure, reasonable in design, device detects sensitive, can in time reflect the working pressure state, reports to the police immediately under improper situation; Can effectively avoid the error condition of depending on manual inspection to produce, stop lowly or interrupt influencing equipment operation, production output and quality are impacted because of cooling water pressure.
[description of drawings]
The utility model will be further described in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the utility model equipment constitutional diagram,
Fig. 2 is the utility model warning device circuit theory diagrams.
[embodiment]
Referring to Fig. 1, Fig. 2, cooling waterpump automatic failure alarm system, comprise the pressure gauge with electric contact 1 that is installed on the cooling water water outlet main pipe, described pressure gauge with electric contact signal output part is connected with the warning device 2,2 ' that is installed in switch board room night shift room and refrigeration plant night shift room respectively.
Pressure gauge with electric contact 1 adopts model to be: the pressure gauge with electric contact of YXC-150,0-0.6Mpa detects the water outlet of cooling water, and pressure signal is transported to warning device 2,2 '.This alarm system is equipped with the warning distribution box simultaneously at refrigeration plant and switch board room, and warning device 2 and 2 ' is installed respectively: when refrigeration plant is normally gone to work, by the responsible elimination to fault of refrigeration plant operator, reach restorer and normally move, guarantee that cooling water in time recovers; If refrigeration plant unmanned working, particularly evening, because power failure or equipment failure and build-up of pressure descends when occurring reporting to the police are responsible for its restorative operation by the switch board room operator on duty, assurance freeze dryer, distillation machine ordinary production.
It is to prevent that manufacturing mechanism that particular pressure requires is low or supply water when stopping because of pressure of supply water that the utility model mainly acts on; cause the out of service of equipment downtime or the crucial annex of part; influence quality of product; influence the technical preventive measure that the ordinary production of pharmaceutical manufacturing line is taked, go the deficiency of discovering device operation exception situation in the mode that remedies simple dependence manual inspection.
Although illustrated and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that under the situation that does not break away from principle of the present utility model and spirit and can carry out multiple variation, modification, replacement and modification to these embodiments, scope of the present utility model is limited by claims and equivalent thereof.
Claims (2)
1. freeze-drying is characterized in that with cooling waterpump automatic failure alarm system described alarm system comprises the pressure gauge with electric contact that is installed on the cooling water water outlet main pipe, and described pressure gauge with electric contact signal output part is connected with warning device.
2. according to the described freeze-drying usefulness of claim 1 cooling waterpump automatic failure alarm system, it is characterized in that described warning device comprises alarm, key button, work indicator light, transformer, first auxiliary reclay, second auxiliary reclay, described work indicator light, alarm, transformer input end are connected with ac power supply with parallel way with the key button; Described key button place branch road is serially connected with first auxiliary reclay, the power supply of its normally opened contact Control work tutorial light, alarm and transformer input end; Second auxiliary reclay is connected in series with pressure relay and transformer output terminal in the described pressure gauge with electric contact, the power supply of its normally opened contact control alarm branch road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202671370U CN201723430U (en) | 2010-07-20 | 2010-07-20 | Freeze-drying cooling water pump fault automatic alarm system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202671370U CN201723430U (en) | 2010-07-20 | 2010-07-20 | Freeze-drying cooling water pump fault automatic alarm system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201723430U true CN201723430U (en) | 2011-01-26 |
Family
ID=43491750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202671370U Expired - Lifetime CN201723430U (en) | 2010-07-20 | 2010-07-20 | Freeze-drying cooling water pump fault automatic alarm system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201723430U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104282350A (en) * | 2014-08-05 | 2015-01-14 | 中国核电工程有限公司 | Control method for reducing false alarm of nuclear power station charging pump |
| CN104441927A (en) * | 2013-09-25 | 2015-03-25 | 中电电气(上海)太阳能科技有限公司 | Cooling water warning device of vacuum pump of laminating machine |
-
2010
- 2010-07-20 CN CN2010202671370U patent/CN201723430U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104441927A (en) * | 2013-09-25 | 2015-03-25 | 中电电气(上海)太阳能科技有限公司 | Cooling water warning device of vacuum pump of laminating machine |
| CN104282350A (en) * | 2014-08-05 | 2015-01-14 | 中国核电工程有限公司 | Control method for reducing false alarm of nuclear power station charging pump |
| CN104282350B (en) * | 2014-08-05 | 2017-01-25 | 中国核电工程有限公司 | Control method for reducing false alarm of nuclear power station charging pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110126 |
|
| CX01 | Expiry of patent term |