CN87213956U - Water-level automatic controller with time-delay control device - Google Patents
Water-level automatic controller with time-delay control device Download PDFInfo
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- CN87213956U CN87213956U CN 87213956 CN87213956U CN87213956U CN 87213956 U CN87213956 U CN 87213956U CN 87213956 CN87213956 CN 87213956 CN 87213956 U CN87213956 U CN 87213956U CN 87213956 U CN87213956 U CN 87213956U
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- water
- pump
- contactor
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Abstract
The utility model relates to an automatic control device for water supply systems, comprising a contactor J-[1] used for the power supply to a pump group, a rectifying circuit, a water level automatic control transistor BG-[1], a time delay control circuit composed of an RC time delay control circuit, a transistor switch device BG-[2] and a control relay J-[2], and a piezoelectric ceramic sheet buzzer used to indicate the time delay control work. When the motor of a water pump run idly without water, the utility model can make the contactor J-[1] act through the action of the control relay J-[2] to make the motor of the water pump stop working because of the power cut, avoiding the burning-out of the winding of the motor of the water pump, and the power can be saved. The automatic control device for water supply systems is suitable for water supply systems with one water pipe used also as an outlet pipe and can be widely used in control devices of small water towers in countrysides.
Description
The utility model relates to a kind of water level automatic control device of water system, relates to the water level automatic control device that has overrun control especially.
Water level automatic control device in the prior art comprises the contactor of the pump motor power supply in above-mentioned water system, and one normally closed interlock and pump motor are in series, and it is by contactor may command pump operation or quit work; The automatic oxide-semiconductor control transistors of water level, the energising that it is controlling contactor coil is whether; And the rectification circuit of the required direct supply of supply.This water level automatic control device can guarantee that pump working draws water when making water level in the water tank arrive upper limit, and water pump quits work under the effect of contactor.Water pump can be resumed work again when making water level in the water tank be lower than lower limit after user's water.But this control device exists following point: when following situation takes place:
1. the well casing bottom valve leaks when serious, and vacuum tightness descends, and causes water pump idle running;
2. well or water source dry up when this bottom valve;
3. when pipe choking, the fracture of freezing or running water pipe;
4. pump motor breaks down or during the phase failure of three-phase pump motor;
5. pump motor can not get normal horsepower, when lift does not reach water tank;
To cause water can not flow into water tank, thereby cistern water level can not reach specified altitude, pump motor is failure to actuate and can not be cut off the power supply because of contactor like this, and water pump is always in ceaselessly running.The long-term idle running of pump motor or the three-phase phase failure are still turned round and will be burnt out the pump motor coil.Vacuum pump is forbidden idle running when anhydrous in addition.Idle running can reduce sealing property, causes and leaks, and influences the serviceable life of water pump.
In order to overcome above-mentioned shortcoming, the purpose of this utility model provides a kind of water level automatic control device, on existing control device basis, add an overrun control, when one of above-mentioned five kinds of situations take place, when after time-delay after a while as yet not extracting water out and coming, can automatically cut off the power supply of pump motor, stop the work of water pump.So just avoided water pump idle running over a long time, guaranteed that the pump motor coil is not burnt out, also prolonged the serviceable life of water pump simultaneously, and saved electric energy.
A purpose more of the present utility model provides a kind of warning device, when one of above-mentioned five kinds of situations that make water pump idle running, can in time produce alarm call, and reminds people is fixed a breakdown.
In order to realize above-mentioned purpose, a kind of water level automatic control device that the utility model provides, comprise the contactor of the pump motor power supply in water system, the automatic oxide-semiconductor control transistors of rectification circuit, water level of the required direct supply of supply, it is characterized in that being equipped with and use the overrun control of controlling by the signal of the sensor that draws water, it can comprise RC delay control circuit, transistor switch device, pilot relay.
In a kind of water level automatic control device that the utility model provides draw water sensor feed pipe during with metal material by the water pipe water inlet that is fixed on the water storage device in the above-mentioned water system and can form with one section exposed insulated conductor that water inlet is joined; When water inlet pipe was used the tap water metallic pipe coupling with nonmetallic materials and water inlet pipe mouth, the sensor that draws water formed by lead directly is welded on the metal tube with tin.
A kind of water level automatic control device that the utility model provides also is included in and is connected to the piezoelectric ceramic piece news Chinese percussion instrument that the work of indication overrun control is used in the overrun control.
Major advantage of the present utility model solves water level automatic control device exactly can cut off the pump motor power supply automatically when water pump dallies for some reason, make the problem of water pump stall.So just protect the coil of pump motor not burnt out, prolonged the life-span of water pump.
Another advantage of the present utility model is exactly to dally for some reason and when cutting off pump power automatically at water pump, and the piezoelectric ceramic piece news Chinese percussion instrument in the warning device can break down with the prompting people by sounding, so that get rid of in time, recovers to work normally.
An advantage more of the present utility model is practical, is suitable for being applied in very much on the control device of China's little water tower in vast rural area, especially suitable being used in the water system of a water pipe double as water inlet pipe and water outlet pipe.
Below in conjunction with accompanying drawing most preferred embodiment of the present utility model is explained in detail.In the accompanying drawing:
Fig. 1 is the control circuit figure of the water level automatic control device of water system.
Fig. 2 is for being applicable to the probe and the arrangenent diagram of water supply sensor on water tank and water pipe of a kind of water system water level automatic control device of the present utility model when the water supply water inlet pipe is made by metal material.
Fig. 3 is for being applicable to the probe and the arrangenent diagram of water supply sensor on water tank and water pipe of a kind of water system water level automatic control device of the present utility model when the water supply water inlet pipe is made by nonmetallic materials.
Fig. 4 is the whole floor plan of the water system of Fig. 2 or Fig. 3.
Referring to Fig. 1, a, b, c link to each other with probe A, B, C in the water tank through lead respectively among the figure, the d point then with water system sensor 14 on nuditing wire 11 link to each other through lead.It comprises the rectification circuit that produces direct supply, contactor J
1Deng the control circuit of forming, by pilot relay J
2, time delay resistance R
2, capacitor C
3, transistor switch device BG
2Deng delay control circuit and the warning circuit formed.The fairing that produces direct supply is by transformer 2, bridge rectifier 1, filter capacitor C
1, C
2With indication the power supply whether indicating circuit of operate as normal, i.e. light emitting diode 3 and resistance R
5Compositions such as series circuit.The AC power of 220V after transformer 2 transformations by rectifier 1 and filtering circuit C
1, C
2Carry out rectification and filtering, give control circuit, delay control circuit and warning circuit with this direct supply again, control circuit is by contactor J
1(the normally open contact J that comprises it
11With normally closed interlock J
12), the automatic oxide-semiconductor control transistors BG of water level
1, transistor BG
1Base resistance R
1With contactor J
1Protection diode D
1Etc. formation.J
12Be contactor J
1Normally closed interlock and pump motor series connection after be connected on the output terminal of (220V) AC power.As long as contactor J
1Coil in do not have electric current to pass through (outage), its normally closed interlock J
12Just closed, pump motor M is work just; Otherwise, as its normally closed interlock J
12Open, pump motor is with regard to stall.Contactor coil J is that the automatic oxide-semiconductor control transistors BG of water level is depended in energising or outage
1Conducting still end and BG
1Conducting, by being whether to communicate and contactor J with another probe A again by two in water tank probes (B, C)
1Normally open contact J
11Whether break-make is controlled through a L.The concrete connection of control circuit is as follows: contactor coil J
1End points K and triode BG
1Collector links, coil J
1Another end points E and BG
1Emitter F receive the output terminal E ' and the F ' of direct supply rectification circuit respectively.At probe C and triode BG
1The indirect base resistance R of base stage L
1, between probe C and probe B, insert contactor J
1Normally closed interlock J
11, protection diode D
1Be attempted by contactor J
1The two ends of coil.Delay control circuit has comprised the resistance R of time-lag action
2And capacitor C
3, the transistor BG of an on-off action
2, pilot relay J
2(it has normally open contact J
21, normally closed interlock J
23, normally open contact J
22), the diode D that shields
2, the diode D of a buffer action
3And resistance R
3And R
6Deng.When the sensor 14 of drawing water disconnects with probe A, d point current potential capacitor C during with dc rectification power
3Charging and raise, when the current potential of d makes transistor BG
2During conducting, pilot relay coil J
2Energising and cause J
2Normally open contact J
21Closure, c point current potential is identical with a point current potential; J
2Normally closed interlock J
25Open, cut off the path that c point and d are ordered, guaranteed that c point current potential is influenced by d point current potential not only, the concrete connection of delay control circuit is as follows: pilot relay coil J
2End points I and transistor BG
2Collector link; Transistor BG
2Emitter and resistance R
6An end points N link.Two end points G(J after these three element connected in series
2Another end points of coil) with the H(resistance R
6Another end points) receive direct supply rectification circuit output end F ' and E ' two ends respectively.Play the resistance R of time-lag action
2With capacitor C
3Be connected on after the series connection on G point and the H point.Resistance R
2With capacitor C
3Between be the d point, and through resistance R
3With transistor BG
2Base stage M link to each other.Access Control relay J between d point and C point
2Normally closed interlock J
23With diode D
3Series circuit.Access Control relay J between probe C and probe A
2Normally open contact J
21Warning circuit is then simpler, resistance R
4With pilot relay J
2Normally closed interlock J
22And piezoelectric ceramic piece news Chinese percussion instrument 4(market is on sale) being in series is connected on direct supply rectification circuit output end E ' F ' two ends.Coil J
2Energising can make its normally open contact J
22Closure makes piezoelectric ceramics news Chinese percussion instrument 4 sounding alarms.
Referring to Fig. 2, Fig. 2 is for being suitable for the probe and the arrangenent diagram of sensor on water tank and water pipe that draw water of a kind of water system water level automatic control device of the present utility model.The water pipe (8) that attracts from water pump group motor is installed a unidirectional flowing water Valve (5) at an end of pipeline (10) when introducing water tank (6) near water tank bottom by pipeline (10).This retaining valve can be made by the rubber material, and it can only make water from the interior unidirectional outside outflow of water tank (6).When water pump water outlet,, the pressure of water pump water outlet do not allow water flow out because, just in time withstanding retaining valve (5) greater than the pressure of water level in the water tank.When needing water, the water in the water tank has certain pressure from top to bottom, and to the pressure of retaining valve (5) generation outside water tank, retaining valve (5) pressurized is opened automatically.Water pipe (8) also passes to water tank (6) top.(12) be the water delivering orifice of water pipe (8).Have 3 probe A points, B point, C point and the sensor 14 that draws water here.The sensor 14 that draws water when running water pipe is made by metal material is made by the following method: it is bound round (13) hoop jail on water pipe water inlet (12) lead that has an insulated hull 11, under water pipe water inlet (12) insulated hull of lead 11 peelled off and exposed outside.The sensor 14 that draws water has so just formed.Probe B and C are respectively lower limit and the upper limits that is positioned at water tank, probe B is positioned at the top of water tank interior conduit 10, bottom apart from water tank (6) is about 1/5th of whole water tank height, and probe C point is positioned at the below at water tank (6) top, is about 1/7th of whole water tank height apart.Probe B and C are made by following method:, with ferrochrome lead being burn-on after molten last minute copper with brazing on the stainless steel short tube again, live in powerful cream in the solder joint outside with sleeve pipe it is secured.Probe A can directly be welded in lead on the water pipe at water tank (6) top with tin, and still go up powerful cream with the sleeve pipe notes it is secured at the solder joint place.
Referring to Fig. 3, Fig. 3 is applicable to the probe of a kind of water system automaton of the present utility model and draws water the arrangenent diagram of sensor on water tank and water pipe when being made by nonmetallic materials for the water supply running water pipe.When water pipe available tap water metallic pipe coupling of water inlet pipe pipe (12) when the nonmetallic materials, no matter and probe B and C, the sensor 14 that draws water are all identical with figure two in the position that makes still placement, have only A point difference.Probe A point manufacturing process is as follows: get a lead, the one end directly is welded in tin on the metallic pipe coupling of water inlet 12, the other end is welded on the stainless steel of molten upward copper, hangs down naturally by lead and holds high to descend to be placed on the bottom of water tank 6.Soldering tip is secured annotating powerful cream with sleeve pipe on the solder joint.Can reduce the water resistance that draws water between sensor 14 and the probe A like this, improve its sensitivity.
Certainly also have another performance, the water pipe (8) more than pipeline (10) is all used metal material exactly, and the following water pipe (8) of pipeline (10) is used nonmetallic materials.This moment, probe was made also identical with figure two with placement.
Referring to Fig. 4, Fig. 4 is the whole device arrangenent diagram of the water system of Fig. 2 or Fig. 3.This is the water system of a single water pipe, and water pipe (20) is drawn from water pump (19), needs the water place that one three-way connection (14) is installed the user, from its a water delivering orifice aqueduct (15) to the user, with dress user water swivel.Be connected in the aqueduct (17) of the other end of three-way connection (14), refill a three-way connection (16) on the head, can guide to other users from its aqueduct (8) to the other end that water tank, water pipe (18) are connected on three-way connection (16) that makes progress.
Advantage of this water system and commonly used being compared from the system of being in the charge of water outlet by a water pipe to water tank water intake by a water pipe can be saved the pipeline consumption.
Be described as follows below in conjunction with the concrete course of work of whole water system water level automatic control device:
Water by pump motor (19) be drawn into water pipe (20), through three-way connection (14), water pipe (17), three-way connection (16), water pipe (8) with the water water tank (6) that leads, flow into water tank through effluent pipe mouth (12) water.When also not having storage of water in the water tank, probe A is not communicated with probe B, probe C, like this triode BG
1Because of not becoming not conducting of loop.Contactor coil J
1No power, then its normally closed interlock J
12Still closed, pump motor is switched on and is turned round.Along with pondage in the water tank increases, water level improves.When water was completely crossed probe C, 2 of A, C were communicated with and make triode BG
1Because of constituting the flow cycle conducting, because of contactor coil J
1Energising and make normally closed interlock J
12Open, pump motor cuts off the power supply and stall, because of contactor coil J
1Energising also makes normally open contact J
12Closure and self-locking make as long as probe B links to each other with probe A and just can keep triode BG
1Conducting guarantees the pump motor stall, and the influence whether C that do not popped one's head in links to each other with probe A, has only like this when cistern water level to be lower than probe B and when making A, B disconnection, just can make the pump motor work of turning round again.When C and a point were obstructed, pump motor was in running, as when one of above-mentioned five kinds of situations of this instructions take place, the result will not have water to flow out in water inlet pipe mouth (12), and the d point in the sensing port 14 that draws water no longer is an electronegative potential.Because R
2, C
3Circuit exists, and the direct supply after the rectification is through resistance R
2To capacitor C
3Charging, d point current potential are risen exponentially gradually.Behind a scheduled delay, d point current potential rises to and can make transistor BG
2Conducting.This scheduled delay can be by changing R
2C
3Value and regulate.The present invention is 1 minute selected time delay, and this determines according to following two principles:
1. pump motor dallies continuously and can not go wrong in 1 to 2 minute, therefore selects 1 minute and postpones to leave surplus.
2.1 the branch clock time can supply water more than 100 kilogram.The water of this quantity can be guaranteed the needs of two washing machines.Like this if the user can cause tank port not water outlet in 1 minute when supplying water for washing machine in a large number, now, just can avoid motor when operate as normal, can not cause relay J owing to a large amount of waters of user cause tank port not water outlet in 1 minute being selected in 1 minute time delay
2Misoperation, and make contactor J
1Coil electricity, normally closed interlock J
12Disconnect.Pump motor is because of the situation of outage stall.BG
2Conducting make pilot relay coil J
2Energising, normally open contact J
21Closure, c point and the short circuit of a point.Because the c point is an electronegative potential, so transistor BG
1Conducting, contactor coil J
1Energising.Normally closed interlock J
12Disconnect, pump motor is because of the outage stall.So just prevent the phenomenon that pump motor dallies always when one of above-mentioned five kinds of situations take place, played the effect of protection water pump and motor.Pilot relay coil J in addition
2After the energising, normally closed interlock J
23Disconnect, c point and d point are disconnected; Coil J
2Energising, normally open contact J
22Closure, piezoelectric ceramic piece news Chinese percussion instrument 4 will sounding alarms, notify people to break down, so that get rid of as early as possible.At contactor coil J
1, relay coil J
2Two ends are connected to diode D respectively
1And D
2In case principal vertical line circle when outage induced voltage is too high.Transistor BG
2Also can use thyristor instead.The utility model also is applicable to the water system commonly used that a water inlet pipe and a rising pipe are arranged on the water tank in addition.
Claims (5)
1, the water level automatic control device of water system comprises the contactor J that the pump motor in above-mentioned water system is powered
1, rectification circuit, the automatic oxide-semiconductor control transistors BG of water level
1, it is characterized in that being equipped with the overrun control of controlling with the signal of the sensor that draws water.When pump motor work after the schedule time when not extracting water out, make contactor J
1Work stops water pump and motor running.
2, automaton as claimed in claim 1, the sensor that it is characterized in that drawing water also can be made up of with the contacted one section exposed insulated conductor of water inlet the water pipe water inlet that is fixed on the water storage device in the above-mentioned water system.
3, automaton as claimed in claim 1 is characterized in that being connected in the above-mentioned overrun control piezoelectric ceramic piece news Chinese percussion instrument that can indicate overrun control work to use.
4, automaton as claimed in claim 1 is characterized in that above-mentioned overrun control comprises RC delay control circuit transistor switch device BG
2, pilot relay J
2
5, automaton as claimed in claim 1, the above-mentioned schedule time is about 1 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87213956 CN87213956U (en) | 1987-09-30 | 1987-09-30 | Water-level automatic controller with time-delay control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87213956 CN87213956U (en) | 1987-09-30 | 1987-09-30 | Water-level automatic controller with time-delay control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87213956U true CN87213956U (en) | 1988-06-01 |
Family
ID=4828366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87213956 Withdrawn CN87213956U (en) | 1987-09-30 | 1987-09-30 | Water-level automatic controller with time-delay control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87213956U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103103931A (en) * | 2013-01-21 | 2013-05-15 | 陕西科技大学 | Water level detection alarm device at low-lying positions of bridge and culvert |
-
1987
- 1987-09-30 CN CN 87213956 patent/CN87213956U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103103931A (en) * | 2013-01-21 | 2013-05-15 | 陕西科技大学 | Water level detection alarm device at low-lying positions of bridge and culvert |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |