CN104216431A - Novel water level monitoring alarming control device - Google Patents

Novel water level monitoring alarming control device Download PDF

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CN104216431A
CN104216431A CN201410518335.2A CN201410518335A CN104216431A CN 104216431 A CN104216431 A CN 104216431A CN 201410518335 A CN201410518335 A CN 201410518335A CN 104216431 A CN104216431 A CN 104216431A
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binding post
triode
relay
circuit
diode
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CN104216431B (en
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彭全洪
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Rudong County Shengtai new rural development and Construction Co., Ltd
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彭全洪
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Abstract

The invention discloses a novel water level monitoring alarming control device. The device comprises a water level monitoring alarming control circuit and a power circuit, wherein the water level monitoring alarming control circuit is divided into a water feeding working mode circuit and a water draining working mode circuit according to different connecting modes of a controller; the water level monitoring alarming control circuit comprises probe heads A-D for probing different water levels, triodes VT1-VT9, relays DC1-DC4, and the controller containing a 18-bit binding post; a normally-opened contact and a normally-closed contact of each relay are respectively connected with the probe heads B and C; binding posts 11-14 are connected with the probe heads A-D; the connecting modes of the binding posts 11-14 and the binding posts 15-18 are respectively corresponding to those of the water feeding working mode circuit and the water draining working mode circuit. According to the novel water level monitoring alarming control device, simple circuit connection is performed, control from a chip and other elements is saved, thus the cost is small, the energy consumption is decreased, the functions of water feeding, water draining and alarming for water level exceeding limit can be realized, and all functions can be switched by different binding connecting modes; the operation is simple, and the convenience and practicability are ensured.

Description

A kind of novel water level monitoring, alarming control device
 
Technical field
The present invention relates to water level monitoring controlling alarm field, particularly relate to a kind of novel water level monitoring, alarming control device.
Background technology
Water level controller is a kind of widely used automation devices, at industrial circulating water, Industrial Boiler, wastewater treatment, food processing, chemical industry, automobile industry, water tower, water tank, the neighborhoods such as pond for building have large-scale application, detected medium can be divided into water, oil, acid, alkali, the various conduction such as sewage or non-conductive liquid, be connected with motorized valve, pump is opened in the upper limit by controlling water pump, in the effect of lower limit termination of pumping, water level is controlled, can also by exceeding the upper limit at water level or carrying out warning function by alarm in limited time lower than lower, avoid occurring dangerous or occurring that fault causes the accident together,
And in the prior art, general water level controller only have the upper limit open pump and the effect of lower limit termination of pumping or in upper limit termination of pumping lower limit open pump any one effect, be not easy to by simply regulating and above-mentioned two kinds of modes are effectively integrated and replaced, there is certain limitation;
In addition, existing water level controller directly adopts alternating voltage effect, controls electric current comparatively large in circuit, in pond the natural rust of electrode and the ionization corrosive attack of alternating current fairly obvious, have a strong impact on the serviceable life of water level controller; And general water level controller adopts counter to carry out controlling functions setting, set up more loaded down with trivial details, and counter needs to operate always, waste electric energy; Moreover, general water level controller adopts ball float to detect, ball float all has obvious defect relative to probe in materials'use, cost and operation environment etc., the materials'use of ball float is many, and make complicated, cost is relatively high, and ball float is when there is change in tension force, can result of detection be affected, cause error, also affect its serviceable life simultaneously.
 
Summary of the invention
The technical matters that the present invention mainly solves is to provide a kind of novel water level monitoring, alarming control device, used by the collocation of diode, triode and relay, effectively and accurately can control startup and the shut-down operation of water pump, can effectively carry out starting or stoping operation by diode and arranging of electric capacity, and the charging of electric capacity, discharge time are short, the control reaction time of system is also short; Arranged by circuit and the conversion of water and drain function pattern can be entered the simple operations of controller wiring.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of novel water level monitoring, alarming control device, comprise: water level monitoring alarm control circuit and power circuit, described water level monitoring alarm control circuit is divided into into water operating mode circuit and drainage works mode circuit according to the different connected modes of controller, and described water level monitoring alarm control circuit comprises:
Probe: comprise needle probes head A, B, C, D, is respectively used to the change detecting different height of water level; In the two ends of described probe A, B, C, D, the interface that different water-level detecting position and the other end connect corresponding electronic component respectively is all fixed in one end, the other end connecting triode VT respectively of described probe A 1ground level and the binding post 14 of described controller, the other end of described probe B connects relay D respectively c1normally opened contact and the binding post 13 of described controller, the other end of described probe C connects relay D respectively c1normally closed contact and the binding post 12 of described controller, the other end connecting triode 2VT respectively of described probe D 1ground level and the binding post 11 of described controller;
Triode: comprise triode VT 1, VT 2, VT 3, VT 4, VT 5, VT 6, VT 7, VT 8, VT 9, form the on-off circuit of different conditions for acting synergistically with relay and probe; Described triode VT 1, 2VT 1ground level be provided with probe A and probe D, the described triode VT of supply ground level input current 1ground level connect the binding post 14 of described controller, described triode VT 1ground level contact resistance R 3with electric capacity C o1parallel circuit, described triode VT 2ground level connect the binding post 15 and 16 of described controller, described triode VT 3ground level connect the binding post 17 and 18 of described controller, described triode VT 4ground level series diode D 3and its collector terminal is serially connected with resistance R 18and LED light, described triode VT 5ground level series diode D 1and its collector terminal is serially connected with diode D 4with relay D c1parallel circuit, described triode 2VT 5collector terminal be serially connected with diode 2D 2with relay D c4parallel circuit, described triode VT 6the series resistor R of ground level 19and its collector terminal is by resistance R 20with described triode VT 7serial connection, described triode VT 7the series resistor R of ground level 20and its collector terminal is serially connected with diode D 6with relay D c2parallel circuit, described triode VT 8and VT 5ground level respectively series diode D 2and D 1and by diode D 1with triode VT 5serial connection, described triode VT 9ground level series resistor R 22, described triode VT 9collector terminal be serially connected with diode D 8with relay D c3parallel circuit; Triode VT 1collector by resistance connecting triode VT 2base stage, described triode VT 2collector by circuit connecting triode VT 3base stage, described triode VT 3collector by circuit connecting triode VT 4base stage, described triode VT 3emitter and triode VT 5base stage between be serially connected with diode D 1, described triode VT 3collector connect described triode VT by circuit 6base stage, described triode VT 4base stage by circuit connecting triode VT 6base stage, described triode VT 4base stage and triode VT 6base stage between be serially connected with electric capacity C 1, electric capacity C 1and R 17the circuit of series connection and diode D 5parallel connection, diode D 5anode connect electric capacity C 1, and its negative terminal connects described triode VT 4and VT 6emitter, triode VT 6collector and triode VT 7base stage between be serially connected with resistance R 20, be connected with diode D1 and D2 oppositely arranged between the base stage of described triode VT5 and the base stage of triode VT8 successively, described triode VT 8collector by circuit connecting triode VT 9base stage;
Relay: comprise electrothermal relay FR and relay D c1, D c2, D c3and D c4; Described relay D c1middle COM hold series resistor R 1and its normally closed contact linking probe head C, and its normally opened contact linking probe head B; Described relay D c2normally opened contact connect the binding post 7 of described controller, and its middle COM end connects binding post 8; Described relay D c3middle COM end connect the binding post 5 of described controller and its normally closed contact connects binding post 6, described relay D c4normally opened contact connect the Fu fuse right-hand member of described controller, and COM end in the middle of it connects binding post 4;
Controller: by 18 independently binding post form side by side, comprise binding post 1-18, wherein, binding post 1 connects ground wire N, binding post 2 connects live wire L, is 220V alternating current between binding post 1 and binding post 2, externally between binding post 3 with binding post 4 exchanges alarm, and described binding post 3 is connected ground wire N respectively with binding post 1, binding post 4 connects relay D c4middle COM end, binding post 3 connects that ground wire N holds and binding post 4 connects relay D c4middle COM end, described binding post 5 and binding post 6 are serially connected with stop button SB 1, described binding post 7 and binding post 8 are connected to start button SB 2described binding post 9 and binding post 10 are connected in series the hummer of 12V in centre, described binding post 11-14 is linking probe head A-D respectively, described binding post 15-18 each other in connect, connected mode corresponding water inlet operating mode circuit and the drainage works mode circuit respectively of the connection of described binding post 11-14 and described binding post 15-18; Described controller is circumscribed with threephase asynchronous M at live wire L end, threephase asynchronous M connects water pump, threephase asynchronous M is serially connected with the normally closed contact of A.C. contactor and electrothermal relay FR at its input end, and the normally closed contact of described electrothermal relay FR is connected in series stop button SB successively 1, start button SB 2and A.C. contactor;
Described water level monitoring alarm control circuit also comprises: exchange alarm, hummer, LED light, water pump, A.C. contactor, pushbutton switch, FU insurance, diode, voltage stabilizing diode WD, electric capacity and resistance, described pushbutton switch comprises stop button SB 1with start button SB 2, described resistance comprises resistance R 1-R 22and R a, described diode comprises D 1-D 8, 2D 1and 2D 2, described electric capacity comprises C a1, C a2, C 1, C 2and C o1;
Described power circuit comprises: step-down transformer, voltage stabilizing chip, bridge rectifier, diode D a5and LED light, the input end of described step-down transformer is the 220V alternating voltage with FU insurance, and the output terminal of described step-down transformer is provided with bridge rectifier, and the output terminal of described bridge rectifier also meets the electric capacity C of 1000uf a1, the output terminal two ends of described bridge rectifier connect input end and the earth terminal of voltage stabilizing chip respectively, and the output terminal of described voltage stabilizing chip also connects LED light and series resistor R a, described voltage stabilizing chip and diode D a5and connect, described LED light and resistance R aserial connection and with the electric capacity C of 470uf a2and connect.
In a preferred embodiment of the present invention, described water inlet operating mode circuit comprises: described binding post 11 linking probe head D, described binding post 12 linking probe head B, described binding post 13 linking probe head C, described binding post 14 linking probe head A, described binding post 15 is connected with described binding post 18.
In a preferred embodiment of the present invention, described drainage works mode circuit comprises: described binding post 15 is connected with binding post 16, and described binding post 17 is connected with binding post 18; Described binding post 11 linking probe head D, described binding post 12 linking probe head C, described binding post 13 linking probe head B, described binding post 14 linking probe head A.
In a preferred embodiment of the present invention, one end of described voltage stabilizing diode WD and resistance R 1and R 2and connect and other end ground connection, for carrying out stability adjustment to the voltage of circuit.
In a preferred embodiment of the present invention, described relay D c1, D c2, D c3and D c4be SRD-12VDC-SL-C relay.
In a preferred embodiment of the present invention, described A.C. contactor is KM contactor, for connecting and disjunction load.
In a preferred embodiment of the present invention, described voltage stabilizing chip is circuit of three-terminal voltage-stabilizing integrated IC chip LM7812.
In a preferred embodiment of the present invention, described electric capacity C o1electric capacity be 4.7uf.
In a preferred embodiment of the present invention, the output end voltage of described step-down transformer is 18V.
The invention has the beneficial effects as follows: novel water level monitoring, alarming control device of the present invention can realize water inlet and draining two kinds of mode of operations further, arrange simple, the reaction time automatically controlled during monitoring is short, and power is low; The monitoring pattern of counter is adopted, more power saving and durable in relative conventional art, can Zero-power-consumption standby operation, more convenient practicality.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:
Fig. 1 is the structural drawing of the alarm control circuit of water level monitoring described in the present invention;
The principle assumption diagram of described alarm when Fig. 2 is super water level in the present invention;
Fig. 3 is the structural drawing of power circuit described in the present invention;
Fig. 4 is the electrical block diagram that controller described in the present invention is connected with button key;
Fig. 5 is the wiring schematic diagram of 18 binding posts under drainage works pattern of controller described in the present invention;
Fig. 6 is the wiring schematic diagram of 18 binding posts under water inlet mode of operation of controller described in the present invention.
Embodiment
Be clearly and completely described to the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1 to Fig. 6, the embodiment of the present invention comprises:
A kind of novel water level monitoring, alarming control device, comprise: water level monitoring alarm control circuit and power circuit, described water level monitoring alarm control circuit is divided into into water operating mode circuit and drainage works mode circuit according to the different connected modes of controller, and described water level monitoring alarm control circuit comprises:
Probe: comprise needle probes head A, B, C, D, is respectively used to the change detecting different height of water level; In the two ends of described probe A, B, C, D, the interface that different water-level detecting position and the other end connect corresponding electronic component respectively is all fixed in one end, the other end connecting triode VT respectively of described probe A 1ground level and the binding post 14 of described controller, the other end of described probe B connects relay D respectively c1normally opened contact and the binding post 13 of described controller, the other end of described probe C connects relay D respectively c1normally closed contact and the binding post 12 of described controller, the other end connecting triode 2VT respectively of described probe D 1ground level and the binding post 11 of described controller;
Triode: comprise triode VT 1, VT 2, VT 3, VT 4, VT 5, VT 6, VT 7, VT 8, VT 9, form the on-off circuit of different conditions for acting synergistically with relay and probe; Described triode VT 1and 2VT 1ground level be provided with probe A and probe D, the described triode VT of supply ground level input current 1ground level connect the binding post 14 of described controller, described triode VT 1ground level contact resistance R 3with electric capacity C o1parallel circuit, described triode VT 2ground level connect the binding post 15 and 16 of described controller, described triode VT 3ground level connect the binding post 17 and 18 of described controller, described triode VT 4ground level series diode D 3and its collector terminal is serially connected with resistance R 18and LED light, described triode VT 5ground level series diode D 1and its collector terminal is serially connected with diode D 4with relay D c1parallel circuit, described triode 2VT 5collector terminal be serially connected with diode 2D 2with relay D c4parallel circuit, described triode VT 6the series resistor R of ground level 19and its collector terminal is by resistance R 20with described triode VT 7serial connection, described triode VT 7the series resistor R of ground level 20and its collector terminal is serially connected with diode D 6with relay D c2parallel circuit, described triode VT 8, VT 5ground level is series diode D respectively 2and D 1and by diode D 1with triode VT 5serial connection, described triode VT 9ground level series resistor R 22, described triode VT 9collector terminal be serially connected with diode D 8with relay D c3parallel circuit; Triode VT 1collector by resistance connecting triode VT 2base stage, described triode VT 2collector by circuit connecting triode VT 3base stage, described triode VT 3collector by circuit connecting triode VT 4base stage, described triode VT 3emitter and triode VT 5base stage between be serially connected with diode D 1, described triode VT 3collector connect described triode VT by circuit 6base stage, described triode VT 4base stage by circuit connecting triode VT 6base stage, described triode VT 4base stage and triode VT 6base stage between be serially connected with electric capacity C 1, electric capacity C 1and R 17the circuit of series connection and diode D 5parallel connection, diode D 5anode connect electric capacity C 1negative terminal connects described triode VT 4and VT 6emitter, triode VT 6collector and triode VT 7base stage between be serially connected with resistance R 20, described triode VT 5base stage triode VT 8base stage between be connected with the diode D oppositely arranged successively 1and D 2, described triode VT 8collector by circuit connecting triode VT 9base stage;
Relay: comprise electrothermal relay FR and relay D c1, D c2, D c3and D c4, described relay D c1, D c2, D c3and D c4be SRD-12VDC-SL-C relay, described relay D c1middle COM hold series resistor R 1and its normally closed contact linking probe head C, and its normally opened contact linking probe head B; Described relay D c2normally opened contact connect the binding post 7 of described controller, and its middle COM end connects binding post 8; Described relay D c3middle COM end connect the binding post 5 of described controller and its normally closed contact connects binding post 6, described relay D c4normally opened contact connect the Fu fuse right-hand member of described controller and COM end in the middle of it connects binding post 4;
Controller: by 18 independently binding post form side by side, comprise binding post 1-18, wherein, binding post 1 connects ground wire N, binding post 2 connects live wire L, be 220V alternating current between binding post 1 and binding post 2, externally between binding post 3 with binding post 4 exchange alarm, and described binding post 3 connects ground connection N is connected relay D with binding post 4 c4middle COM end, binding post 3 connects ground wire N end and binding post 4 connection is positioned at relay D c4middle COM end, described binding post 5 and binding post 6 are serially connected with stop button SB 1, described binding post 7 and binding post 8 are connected to start button SB 2described binding post 9 and binding post 10 are connected in series the hummer of 12V in centre, described binding post 11-14 is linking probe head A-D respectively, described binding post 15-18 each other in connect, connected mode corresponding water inlet operating mode circuit and the drainage works mode circuit respectively of the connection of described binding post 11-14 and described binding post 15-18;
Described controller is circumscribed with threephase asynchronous M at live wire L end, threephase asynchronous M connects water pump, threephase asynchronous M is serially connected with the normally closed contact of A.C. contactor and electrothermal relay FR at its input end, and the normally closed contact of described electrothermal relay FR is connected in series stop button SB successively 1, start button SB 2and A.C. contactor; Described A.C. contactor is KM contactor, for connecting and disjunction load.Above-mentioned control device stable performance, reliable operation, long service life, installation connects simple and convenient, and power consumption is humble, and holding state power consumption is less than 0.2W, and during duty, power consumption is about 0.6W, as shown in Figure 4.
Described water level monitoring alarm control circuit also comprises: exchange alarm, hummer, LED light, water pump, A.C. contactor, pushbutton switch, FU insurance, diode, voltage stabilizing diode WD, electric capacity and resistance, described pushbutton switch comprises stop button SB 1with start button SB 2, described resistance comprises resistance R 1-R 22and R adescribed diode comprises D 1-D 8and 2D 1, 2D 2, described electric capacity comprises C a1, C a2, C1 and C o1, C2; Described electric capacity C o1electric capacity be 4.7uf, described electric capacity C o1effect, be at relay DC 1adhesive action commutation normally opened contact closed moment, make VT1 base stage be unlikely no-bias and arrange, work as VT 3during saturation conduction, resistance R 17both end voltage is fallen and is about 0.9V, so VT 6base voltage is lower than transmitting pressure, and 12V voltage passes through VT 6emitter junction is to electric capacity C 1when charging, VT 6, VT 7saturation conduction, relay DC 2produce adhesive action, normally opened contact closed (being equivalent to press start button key) starts pump operation.The duration of charging of electric capacity C1 is about about 1 second, charge multifunction: 12V → VT 6eb → R 19→ C 1→ R 16→ R 15→ VT 3ce → R 14→ 12V negative pole, diode D 5access be at VT 6to electric capacity C during conducting 1the voltage be filled with is at VT 3electric capacity C during cut-off 1form discharge loop and establish.
Described power circuit comprises: step-down transformer, voltage stabilizing chip, bridge rectifier, diode D a5and LED light, the input end of described step-down transformer is the 220V alternating voltage with FU insurance, and the output terminal of described step-down transformer is provided with bridge rectifier, and the output terminal of described bridge rectifier also meets the electric capacity C of 1000uf a1, the output terminal two ends of described bridge rectifier connect input end and the earth terminal of voltage stabilizing chip respectively, and the output terminal of described voltage stabilizing chip also meets LED light series resistor R a, described voltage stabilizing chip and diode D a5and connect, described LED light series resistor R awith the electric capacity C of 470uf a2and connect, the output end voltage of step-down transformer is 18V, and described voltage stabilizing chip is circuit of three-terminal voltage-stabilizing integrated IC chip LM7812, as shown in Figure 3.
Described water inlet operating mode circuit comprises: described binding post 11 linking probe head D, described binding post 12 linking probe head B, described binding post 13 linking probe head C, and described binding post 14 linking probe head A, described binding post 15 is connected with described binding post 18.
Described drainage works mode circuit comprises: described binding post 15 is connected with binding post 16, and described binding post 17 is connected with binding post 18; Described binding post 11 linking probe head D, described binding post 12 linking probe head C, described binding post 13 linking probe head B, described binding post 14 linking probe head A.
One end of described voltage stabilizing diode WD and resistance R 1and R 2and connect and other end ground connection, for carrying out stability adjustment to the voltage of circuit.
In the present invention, the course of work of drainage works mode circuit:
In controller, binding post 15 is connected with 16, and binding post 17 is connected with 18, and probe C is connected with binding post 12, and probe B is connected with binding post 13, as shown in Figure 5.
Circuit connecting mode as shown in Figure 1;
(1) drainage works setting up procedure:
When water level is lower than probe C site, triode VT1 ends, triode VT 2saturation conduction, triode VT 3, VT 4, VT 5, VT 6, VT 7, VT 8cut-off, relay DC 1, DC 2static, start pilot lamp LED and do not work;
When water level rises to probe C position, probe C and probe A mediates logical by hydrophily, triode VT1 saturation conduction, triode VT2 ends, triode VT3 is by resistance R10, R11, R12, R13 dividing potential drop, triode VT3 has 1.9V base bias, triode VT3, VT4, VT5 saturation conduction, start pilot lamp LED to light, relay DC1 produces adhesive action and its normally opened contact closes, probe B and probe A are situated between by hydrophily and are communicated with, keep triode VT1 conducting, when triode VT3 saturation conduction, resistance R17 both end voltage is fallen and is about 0.9V, the base voltage of triode VT6 is lower than emitter voltage, when 12V voltage is charged to electric capacity C1 by VT6 emitter junction, triode VT6, VT7 saturation conduction, relay DC2 produces adhesive action and its normally opened contact closes, KM contactor closes, motor M drives pump operation.
(2) drainage works stops step:
When water level decreasing to probe B site and with the hydrophily in probe A site be situated between depart from be communicated with time, triode VT1 ends, triode VT2 saturation conduction, and triode VT3, VT4, VT5 end, LED light is extinguished, triode VT8 ends, when 12V voltage charges to electric capacity C2, and triode VT9 saturation conduction, relay DC3 produces adhesive action and its normally closed contact disconnects, KM contactor dead electricity also discharges, and motor M shuts down, and pump working stops.
Wherein, electric capacity C 2charge multifunction be: 12V → R21 → C2 → R22 → VT9be → N, C 2duration of charging be about about 1.5 seconds;
The access of diode D7 is when VT9 conducting, and power supply is filled with voltage to electric capacity C2 two ends, and arranges the discharge loop of electric capacity C2 when VT8 conducting.
In addition, if the electronic devices and components such as water pump, A.C. contactor break down, damage can not proper drainage time, pool inner water position is increased beyond upper limit water level, controller exports super water-level alarm sound (the external interchange alarm of output terminal of controller, and in connect the hummer of 12V operating voltage), as shown in Figure 2.
In the present invention, the course of work of described water inlet operating mode circuit:
Disconnect binding post 15 and 16, disconnect binding post 17 and 18, be connected with 18 by binding post 15, probe B is connected with binding post 12, and probe C is connected with binding post 13, as shown in Figure 6.
Circuit connecting mode as shown in Figure 1;
When ending without VT1 during water level in water tank, triode VT3 base stage is divided by resistance R5, R6, R7, R8 and is pressed with 1.9V base bias, triode VT3, VT4, VT5, VT6, VT7, VT8 saturation conduction, LED light is bright, relay DC1, DC2 produce adhesive action, and motor M drives pump operation;
Wherein, when relay DC1 produces adhesive action, the closed also linking probe head C of normally opened contact of relay DC1, when the water level in water tank rises to probe C site, probe C and probe A are situated between by hydrophily and are communicated with, VT1 saturation conduction, VT3, VT4, VT5, VT8 ends, VT8 ends, 12V voltage passes through R21, C2, R22, when VT9be charges to electric capacity C2, VT9 saturation conduction, relay DC3 adhesive action, DC3 normally closed contact disconnects, A.C. contactor dead electricity is discharged, water pump shuts down, the cut-off of VT5, relay DC1 discharges, DC1 normally closed contact is communicated with probe B, probe B and probe A are situated between by hydrophily and are communicated with, keep VT1 saturation conduction, when the water level decreasing in water tank to probe B and probe A depart from hydrophily be situated between be communicated with time, VT1 ends, again start pump operation.
In addition, when in water tank without water level time, controller and connecting circuit thereof make A.C. contactor produce adhesive action automatically, and motor M drives pump operation to squeeze in water tank by water; When the water level in water tank arrives upper limit water level, controller and control circuit thereof make A.C. contactor discharge automatically, and water pump shuts down; When the water level decreasing in water tank is to lower limit water level, controller and control circuit thereof make A.C. contactor produce adhesive action again automatically, and water pump drives running by motor M again.
In the present invention, there is the course of work of described alarm during super water level:
As draining, water inlet, occur stopping transport and turn abnormal, when water level is increased beyond upper limit water level, probe D and B probe or C probe are situated between by hydrophily and are communicated with, make 2VT1 saturation conduction, 2VT2 ends, 2VT3 base stage is by resistance 2R10, 2R11, 2R12, 2R13 divides and is pressed with 1.9V bias voltage, 2VT3 saturation conduction, about there is 1.35V voltage drop at resistance 2R14 two ends, by diode 2D1, be added to 2VT4 base stage, 2VT4 saturation conduction, connect 12V hummer, send carry chimes of doom, during 2VT3 saturation conduction, resistance 2R16 both end voltage is fallen and is about had 0.9V, 2VT5 saturation conduction, relay DC4 adhesive action, DC4 normally opened contact closes, connect and exchange alarm, send super water-level alarm sound, as shown in Figure 2.
Compared with prior art, novel water level monitoring, alarming control device of the present invention is by circuit of three-terminal voltage-stabilizing integrated IC chip, the effect of voltage stabilizing diode WD effectively can regulate alternating voltage to change and tend to be steady, can protection circuit and electronic component thereof effectively by arranging of fuse and contactor, detection accuracy and serviceable life can be improved by arranging of needle probes head, by using FU insurance, overcurrent protection is carried out to power supply, protect by using the input end of electrothermal relay FR to motor M and controller, effectively voltage stabilizing control can be carried out to power supply by using LM7812, compare general water level monitoring warning device, novel water level monitoring, alarming control device structure of the present invention is simple, multiple functional, good stability, and power consumption is low, cost is low, is applicable to large-scale promotion and uses.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.

Claims (9)

1. a novel water level monitoring, alarming control device, it is characterized in that, comprise: water level monitoring alarm control circuit and power circuit, described water level monitoring alarm control circuit is divided into into water operating mode circuit and drainage works mode circuit according to the different connected modes of controller, and described water level monitoring alarm control circuit comprises:
Probe: comprise needle probes head A, B, C, D, is respectively used to the change detecting different height of water level; In the two ends of described probe A, B, C, D, the interface that different water-level detecting position and the other end connect corresponding electronic component respectively is all fixed in one end, the other end connecting triode VT respectively of described probe A 1ground level and the binding post 14 of described controller, the other end of described probe B connects relay D respectively c1normally opened contact and the binding post 13 of described controller, the other end of described probe C connects relay D respectively c1normally closed contact and the binding post 12 of described controller, the other end connecting triode 2VT respectively of described probe D 1ground level and the binding post 11 of described controller;
Triode: comprise triode VT 1, VT 2, VT 3, VT 4, VT 5, VT 6, VT 7, VT 8, VT 9, form the on-off circuit of different conditions for acting synergistically with relay and probe; Described triode VT 1, 2VT 1ground level be provided with probe A and probe D, the described triode VT of supply ground level input current 1ground level connect the binding post 14 of described controller, described triode VT 1ground level contact resistance R 3with electric capacity C o1parallel circuit, described triode VT 2ground level connect the binding post 15 and 16 of described controller, described triode VT 3ground level connect the binding post 17 and 18 of described controller, described triode VT 4ground level series diode D 3and its collector terminal is serially connected with resistance R 18and LED light, described triode VT 5ground level series diode D 1and its collector terminal is serially connected with diode D 4with relay D c1parallel circuit, described triode 2VT 5collector terminal be serially connected with diode 2D 2with relay D c4parallel circuit, described triode VT 6the series resistor R of ground level 19and its collector terminal is by resistance R 20with described triode VT 7serial connection, described triode VT 7the series resistor R of ground level 20and its collector terminal is serially connected with diode D 6with relay D c2parallel circuit, described triode VT 8and VT 5ground level respectively series diode D 2and D 1and by diode D 1with triode VT 5serial connection, described triode VT 9ground level series resistor R 22, described triode VT 9collector terminal be serially connected with diode D 8with relay D c3parallel circuit; Triode VT 1collector by resistance connecting triode VT 2base stage, described triode VT 2collector by circuit connecting triode VT 3base stage, described triode VT 3collector by circuit connecting triode VT 4base stage, described triode VT 3emitter and triode VT 5base stage between be serially connected with diode D 1, described triode VT 3collector connect described triode VT by circuit 6base stage, described triode VT 4base stage by circuit connecting triode VT 6base stage, described triode VT 4base stage and triode VT 6base stage between be serially connected with electric capacity C 1, electric capacity C 1and R 17the circuit of series connection and diode D 5parallel connection, diode D 5anode connect electric capacity C 1, and its negative terminal connects described triode VT 4and VT 6emitter, triode VT 6collector and triode VT 7base stage between be serially connected with resistance R 20, be connected with diode D1 and D2 oppositely arranged between the base stage of described triode VT5 and the base stage of triode VT8 successively, described triode VT 8collector by circuit connecting triode VT 9base stage;
Relay: comprise electrothermal relay FR and relay D c1, D c2, D c3and D c4; Described relay D c1middle COM hold series resistor R 1and its normally closed contact linking probe head C, and its normally opened contact linking probe head B; Described relay D c2normally opened contact connect the binding post 7 of described controller, and its middle COM end connects binding post 8; Described relay D c3middle COM end connect the binding post 5 of described controller and its normally closed contact connects binding post 6, described relay D c4normally opened contact connect the Fu fuse right-hand member of described controller, and COM end in the middle of it connects binding post 4;
Controller: by 18 independently binding post form side by side, comprise binding post 1-18, wherein, binding post 1 connects ground wire N, binding post 2 connects live wire L, is 220V alternating current between binding post 1 and binding post 2, externally between binding post 3 with binding post 4 exchanges alarm, and described binding post 3 is connected ground wire N respectively with binding post 1, binding post 4 connects relay D c4middle COM end, binding post 3 connects that ground wire N holds and binding post 4 connects relay D c4middle COM end, described binding post 5 and binding post 6 are serially connected with stop button SB 1, described binding post 7 and binding post 8 are connected to start button SB 2described binding post 9 and binding post 10 are connected in series the hummer of 12V in centre, described binding post 11-14 is linking probe head A-D respectively, described binding post 15-18 each other in connect, connected mode corresponding water inlet operating mode circuit and the drainage works mode circuit respectively of the connection of described binding post 11-14 and described binding post 15-18; Described controller is circumscribed with threephase asynchronous M at live wire L end, threephase asynchronous M connects water pump, threephase asynchronous M is serially connected with the normally closed contact of A.C. contactor and electrothermal relay FR at its input end, and the normally closed contact of described electrothermal relay FR is connected in series stop button SB successively 1, start button SB 2and A.C. contactor;
Described water level monitoring alarm control circuit also comprises: exchange alarm, hummer, LED light, water pump, A.C. contactor, pushbutton switch, FU insurance, diode, voltage stabilizing diode WD, electric capacity and resistance, described pushbutton switch comprises stop button SB 1with start button SB 2, described resistance comprises resistance R 1-R 22and R a, described diode comprises D 1-D 8, 2D 1and 2D 2, described electric capacity comprises C a1, C a2, C 1, C 2and C o1;
Described power circuit comprises: step-down transformer, voltage stabilizing chip, bridge rectifier, diode D a5and LED light, the input end of described step-down transformer is the 220V alternating voltage with FU insurance, and the output terminal of described step-down transformer is provided with bridge rectifier, and the output terminal of described bridge rectifier also meets the electric capacity C of 1000uf a1, the output terminal two ends of described bridge rectifier connect input end and the earth terminal of voltage stabilizing chip respectively, and the output terminal of described voltage stabilizing chip also connects LED light and series resistor R a, described voltage stabilizing chip and diode D a5and connect, described LED light and resistance R aserial connection and with the electric capacity C of 470uf a2and connect.
2. novel water level monitoring, alarming control device according to claim 1, it is characterized in that, described water inlet operating mode circuit comprises: described binding post 11 linking probe head D, described binding post 12 linking probe head B, described binding post 13 linking probe head C, described binding post 14 linking probe head A, described binding post 15 is connected with described binding post 18.
3. novel water level monitoring, alarming control device according to claim 1, it is characterized in that, described drainage works mode circuit comprises: described binding post 15 is connected with binding post 16, and described binding post 17 is connected with binding post 18; Described binding post 11 linking probe head D, described binding post 12 linking probe head C, described binding post 13 linking probe head B, described binding post 14 linking probe head A.
4. novel water level monitoring, alarming control device according to claim 1, is characterized in that, one end of described voltage stabilizing diode WD and resistance R 1and R 2and connect and other end ground connection, for carrying out stability adjustment to the voltage of circuit.
5. novel water level monitoring, alarming control device according to claim 1, is characterized in that, described relay D c1, D c2, D c3and D c4be SRD-12VDC-SL-C relay.
6. novel water level monitoring, alarming control device according to claim 1, it is characterized in that, described A.C. contactor is KM contactor, for connecting and disjunction load.
7. novel water level monitoring, alarming control device according to claim 1, it is characterized in that, described voltage stabilizing chip is circuit of three-terminal voltage-stabilizing integrated IC chip LM7812.
8. novel water level monitoring, alarming control device according to claim 1, is characterized in that, described electric capacity C o1electric capacity be 4.7uf.
9. novel water level monitoring, alarming control device according to claim 1, it is characterized in that, the output end voltage of described step-down transformer is 18V.
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CN105912039A (en) * 2016-06-26 2016-08-31 彭全洪 Automatic water level monitoring and alarming device
CN106128048A (en) * 2016-07-04 2016-11-16 国网山东省电力公司博兴县供电公司 A kind of water-level detecting controls alarm
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CN108961539A (en) * 2018-07-12 2018-12-07 四川虹美智能科技有限公司 A kind of commodity retention condition checkout gear, method and system
CN109540220A (en) * 2018-12-28 2019-03-29 河南汉威智慧安全科技有限公司 Water condensation detection circuit and explosion-proof wiring box internal environment detector

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CN109540220B (en) * 2018-12-28 2023-11-17 河南汉威智慧安全科技有限公司 Water condensation detection circuit and explosion-proof junction box internal environment detector

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