CN106557056B - Central air-conditioning intelligent water leakage monitoring device - Google Patents

Central air-conditioning intelligent water leakage monitoring device Download PDF

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Publication number
CN106557056B
CN106557056B CN201510633686.2A CN201510633686A CN106557056B CN 106557056 B CN106557056 B CN 106557056B CN 201510633686 A CN201510633686 A CN 201510633686A CN 106557056 B CN106557056 B CN 106557056B
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China
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water
module
leak
processing unit
central processing
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CN201510633686.2A
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Chinese (zh)
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CN106557056A (en
Inventor
吕永刚
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广东信禾机电工程有限公司
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Publication of CN106557056A publication Critical patent/CN106557056A/en
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Abstract

The invention discloses a kind of central air-conditioning intelligent water leakage monitoring devices, including central processing unit, further include chilled water humidity inductive module, drip tray induction module, condensed water humidity inductive module and alarm module, the inductive signal detected is sent to central processing unit by chilled water humidity inductive module, drip tray induction module, condensed water humidity inductive module respectively, central processing unit sends a control signal to alarm module according to the inductive signal received, alarm module is also associated with optical coupled switch module, and central processing unit controls alarm module by optical coupled switch module.The present invention can prevent large-scale water leakage in advance, easy to operate, easy to maintain, and the important equipment in effective guarantee production and living place effectively avoids generating unnecessary economic loss from damage.

Description

Central air-conditioning intelligent water leakage monitoring device

Technical field

The present invention relates to water leakage monitoring device fields, particularly relate to a kind of central air-conditioning intelligent water leakage monitoring device.

Background technology

With people's living standard increasingly promotion and central air-conditioning technology it is growing and ripe, central air-conditioning exists The popularity rate in the world has greatly promoted, but a problem commonly encountering in the industry of central air-conditioning is exactly in the market in 90% Entreating air-conditioning, there are the risks of leak, bring prodigious puzzlement and huge unnecessary economic loss to client, enterprise in this way, Very cumbersome maintenance task is brought to central air-conditioning maintenance unit, and maintaining cost is increased to client.It is especially right The emphasis place (equipment machine room, MICROCOMPUTER PROCESSING center, precious instrument workshop, electronic product production etc.) of client is wanted by waterproof High place, leaking air-conditioning is asked to be likely to result in very serious consequence.Due to the pipe-line system of central air-conditioning be substantially it is hiding Inside smallpox, difficulty is found so existing, discovery processing is not easy to, typically after water-soaked smallpox causes serious consequence Just handled by maintenance staff's discovery, it is late in this way.

Invention content

The present invention proposes a kind of central air-conditioning intelligent water leakage monitoring device, solves central air-conditioning leak in the prior art not It easily finds and processing, it is difficult to the problem of maintenance.

The technical proposal of the invention is realized in this way:

A kind of central air-conditioning intelligent water leakage monitoring device, including central processing unit, further include chilled water humidity inductive module, Drip tray induction module, condensed water humidity inductive module and alarm module, chilled water humidity inductive module, drip tray incude mould The inductive signal detected is sent to central processing unit by block, condensed water humidity inductive module respectively, and central processing unit is according to connecing The inductive signal received sends a control signal to alarm module, and alarm module is also associated with optical coupled switch module, central processing unit Alarm module is controlled by optical coupled switch module;Chilled water humidity inductive module includes leak water detdction element and freezing water management Device, the resistance value of freezing water controller detection leak water detdction element, and leak information will be determined according to resistance value, freeze water management Leak information is sent to central processing unit by device, and leak water detdction element is separately mounted to outside the chilled water water-supply-pipe of central air-conditioning Wall, chilled water return water pipe outer wall, water pipe weld and water valve interface.

Further, freezing water controller is the monostable flipflop being made of 555 timers.Further, it freezes Water controller includes that sequentially connected Power Entry Module, rectification filtering module, overvoltage protective module, Voltage stabilizing module and 555 are fixed When device, further include the detection branch of the switch button and leak water detdction element composition of concatenation, detection branch is located at Voltage stabilizing module Output end is connect by an amplifying circuit with 555 timers, and the tie point of switch button and leak water detdction element passes through one The output end of diode and a resistance eutral grounding, 555 timers is equipped with indicator light, is connect with the input terminal of central processing unit.

Further, central processing unit is microcontroller, and microcontroller is equipped with the input pin, cold of chilled water humidity inductive module The input pin of condensate humidity inductive module, the input pin of drip tray induction module, alarm module output pin, optocoupler open Close the output pin and leak state output pin of module.

Further, condensed water humidity inductive module includes leak water detdction element and freezing water controller, condenses water management Device detects the resistance value of leak water detdction element, and leak information will be determined according to resistance value, condenses water controller by leak information It is sent to central processing unit, leak water detdction element is separately mounted to the condensate water discharging pipe outer wall of central air-conditioning, water pipe weld With water valve interface.

Further, condensation water controller is the monostable flipflop being made of 555 timers.Further, it condenses Water controller includes that sequentially connected Power Entry Module, rectification filtering module, overvoltage protective module, Voltage stabilizing module and 555 are fixed When device, further include the detection branch of the switch button and leak water detdction element composition of concatenation, detection branch is located at Voltage stabilizing module Output end is connect by an amplifying circuit with 555 timers, and the tie point of switch button and leak water detdction element passes through one The output end of diode and a resistance eutral grounding, 555 timers is equipped with indicator light, is connect with the input terminal of central processing unit.

Further, leak water detdction element is water logging cable, and water logging cable is made of two electric polymers, unit length Resistance value be definite value.

Further, drip tray induction module includes the floating-ball level switch inside the drip tray of centrally disposed air-conditioning, One end of floating-ball level switch is grounded, and one end connects central processing unit, and floating-ball level switch includes floating ball and magnetic reed switch, close The one or more magnetic reed switch of setting in the non-magnetic metal tube or plastic tube closed, one is passed through by non-magnetic metal tube or plastic tube A or multiple floating balls with magnetic material are arranged with magnetic reed switch in drip tray, floating ball using fixed double -loop control floating ball With in drip tray, liquid rises or falls.

The beneficial effects of the present invention are:Pre- preventing water leakage in advance, easy to operate, easy to maintain, effective guarantee production and living The important equipment in place effectively avoids generating unnecessary economic loss from damage.

Description of the drawings

In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention without having to pay creative labor, may be used also for those of ordinary skill in the art With obtain other attached drawings according to these attached drawings.

Fig. 1 is the functional block diagram of central air-conditioning intelligent water leakage monitoring device of the present invention;

Fig. 2 is the circuit diagram of the chilled water humidity inductive module of central air-conditioning intelligent water leakage monitoring device of the present invention;

Fig. 3 is the pinouts of 555 timers;

Fig. 4 is the circuit diagram of the condensed water humidity inductive module of central air-conditioning intelligent water leakage monitoring device of the present invention;

Fig. 5 is the circuit diagram of the central processing unit of central air-conditioning intelligent water leakage monitoring device of the present invention.

In figure, 1- central processing units;2- condensed water humidity inductive modules;3- chilled water humidity inductive modules;4- drip trays Induction module;5- alarm modules.

Specific implementation mode

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts Embodiment shall fall within the protection scope of the present invention.

As shown in Figure 1, the present invention proposes a kind of central air-conditioning intelligent water leakage monitoring device, including central processing unit 1, also Including chilled water humidity inductive module 3, drip tray induction module 4, condensed water humidity inductive module 2 and alarm module 5, chilled water The inductive signal detected is sent to by humidity inductive module 3, drip tray induction module 4, condensed water humidity inductive module 2 respectively Central processing unit 1, central processing unit 1 send a control signal to alarm module 5, alarm module 5 according to the inductive signal received It is also associated with optical coupled switch module, central processing unit 1 controls alarm module 5 by optical coupled switch module.The present invention can be 24 small When monitor leakage point, prevent the leak occurred by problems with:1, water pipe packet is not caused tightly cold to be lost in empty by heat-preservation cotton Vapor in gas liquefies to the cold generates droplet;2, there is situations such as solder skip, trachoma in water pipe weld in work progress, causes cold Freeze water and condensed water leaks out;3, the phase shutoff valve interface in work progress, which does not seal, intact causes chilled water and condensed water to be let out Leakage;4, the design of fan coil return pipe nozzle is improper, and return water is caused to pour in down a chimney generation leakage;5, dirty block up of fan coil drip tray causes Condensed water is excessive.

Chilled water humidity inductive module 3 includes leak water detdction element and freezing water controller, freezing water controller detection leakage The resistance value of water detecting element, and leak information will be determined according to resistance value, during leak information is sent to by freezing water controller Central processor 1, leak water detdction element be separately mounted to the chilled water water delivery pipe outer wall of central air-conditioning, chilled water return water pipe outer wall, Water pipe weld and water valve interface.Leak water detdction element is water logging cable, and water logging cable is made of two electric polymers, list The resistance value of bit length is definite value.

As shown in Figures 2 and 3, freezing water controller is the monostable flipflop being made of 555 timers.Freeze water management Device includes sequentially connected Power Entry Module, rectification filtering module, overvoltage protective module, Voltage stabilizing module and 555 timers, is gone back The detection branch of switch button and leak water detdction element composition including concatenation, detection branch are located at the output end of Voltage stabilizing module, It is connect with 555 timers by an amplifying circuit, the tie point of switch button and leak water detdction element passes through a diode It is equipped with indicator light with the output end of a resistance eutral grounding, 555 timers, is connect with the input terminal of central processing unit 1.As schemed Show, endpoint L1, L2 distinguishes the both ends of water receiving leaching cable, the tie point of switch button SB and water logging cable by diode VD1 and Resistance R6 ground connection, meanwhile, the pin 4 of 555 timers is also connect with resistance R6, and when switch button disconnects, 555 timers draw Foot 4 is grounded by resistance R6, and 555 timers are forced to reset, and endpoint L2 is drawn by a triode VT1 and 555 timers Foot 2 connects, if switch button SB is disconnected, no matter the pin 2 of 555 timers is by great interference, 555 timers not works Make, after pressing switch button SB, Power Entry Module gives 4 one high level of pin of 555 timers by diode VD1, The forced resetting function of 555 timers releases, while Power Entry Module is added to the base stage of triode VT1 by water logging cable On, water logging cable is wrapped up by leak, and triode VT1 conductings, capacitance C2 passes through electric to 555 timers after being connected with VT1 collectors The pin 2 on road exports a low level, and 555 timers overturn set, and pin 3 exports high level, and Light-emitting diode LED is lighted, Light-emitting diode LED is connect with the pin 21 of central processing unit 1, and therefore, central processing unit 1 receives chilled water water leakage. Meanwhile 555 timer pin 3 by diode VD2 to the pin 4 of 555 timers export a high level so that circuit from Lock, after circuit self-locking this transient state, circuit turns back stable state, and pin 3 exports low level.To at this point, freezing water controller Just complete an early warning.

2 leak water detdction element of condensed water humidity inductive module and freezing water controller, condensation water controller detection leak inspection The resistance value of element is surveyed, and will determine leak information according to resistance value, leak information is sent to centre by condensation water controller Device 1 is managed, leak water detdction element is separately mounted to condensate water discharging pipe outer wall, water pipe weld and the water valve interface of central air-conditioning Place.Leak water detdction element is water logging cable, and water logging cable is made of two electric polymers, and the resistance value of unit length is fixed Value.

As shown in Figure 3 and Figure 4, condensation water controller is the monostable flipflop being made of 555 timers.Condense water management Device includes sequentially connected Power Entry Module, rectification filtering module, overvoltage protective module, Voltage stabilizing module and 555 timers, is gone back The detection branch of switch button and leak water detdction element composition including concatenation, detection branch are located at the output end of Voltage stabilizing module, It is connect with 555 timers by an amplifying circuit, the tie point of switch button and leak water detdction element passes through a diode It is equipped with indicator light with the output end of a resistance eutral grounding, 555 timers, is connect with the input terminal of central processing unit 1.As schemed Show, endpoint L1, L2 distinguishes the both ends of water receiving leaching cable, the tie point of switch button SB and water logging cable by diode VD1 and Resistance R6 ground connection, meanwhile, the pin 4 of 555 timers is also connect with resistance R6, and when switch button disconnects, 555 timers draw Foot 4 is grounded by resistance R6, and 555 timers are forced to reset, and endpoint L2 is drawn by a triode VT1 and 555 timers Foot 2 connects, if switch button SB is disconnected, no matter the pin 2 of 555 timers is by great interference, 555 timers not works Make, after pressing switch button SB, Power Entry Module gives 4 one high level of pin of 555 timers by diode VD1, The forced resetting function of 555 timers releases, while Power Entry Module is added to the base stage of triode VT1 by water logging cable On, water logging cable is wrapped up by leak, and triode VT1 conductings, capacitance C2 passes through electric to 555 timers after being connected with VT1 collectors The pin 2 on road exports a low level, and 555 timers overturn set, and pin 3 exports high level, and Light-emitting diode LED is lighted, Light-emitting diode LED is connect with the pin 22 of central processing unit 1, and therefore, central processing unit 1 receives chilled water water leakage. Meanwhile 555 timer pin 3 by diode VD2 to the pin 4 of 555 timers export a high level so that circuit from Lock, after circuit self-locking this transient state, circuit turns back stable state, and pin 3 exports low level.To at this point, condensation water controller Just complete an early warning.

As shown in figure 5, central processing unit 1 is microcontroller, the pin 21 of microcontroller is the defeated of chilled water humidity inductive module 3 Enter pin, the pin 23 of the input pin of the 22 condensed water humidity inductive module 2 of pin of microcontroller, microcontroller incudes for drip tray The input pin of module 4, the pin 24 of microcontroller are the output pin of alarm module 5, and the pin 25 of microcontroller is optical coupled switch The output pin of module, microcontroller are also associated with liquid crystal display for showing leak information, are used for connecting with liquid crystal display The pin connect is 32-39, that is, leak state output pin.Microcontroller is according to chilled water humidity inductive module 3, drip tray sense The inductive signal for answering module 4, condensed water humidity inductive module 2 to convey respectively, exports corresponding alarm signal, in realizing The real time monitoring for entreating leaking air-conditioning situation, to the safety and reliability during effective guarantee user's use.

Drip tray induction module 4 includes the floating-ball level switch inside the drip tray of centrally disposed air-conditioning, Floating Ball Liquid Level One end of switch is grounded, and one end connects central processing unit 1, and floating-ball level switch includes floating ball and magnetic reed switch, closed non- The one or more magnetic reed switch of setting in magnetic conductive metal pipe or plastic tube, one or more is passed through by non-magnetic metal tube or plastic tube A floating ball with magnetic material is arranged using fixed double -loop control floating ball and magnetic reed switch in drip tray, and floating ball is with connecing Liquid rises or falls in water pond.The contact started close to magnetic red using the magnetic material in floating ball generates the action of Push And Release, Make Liquid level or instruction (when floating ball is conducting close to magnetic reed switch;It switchs and disconnects when leaving).When floating-ball level switch is closed When, microcontroller detects a low level, to learn drip tray leak, and then exports corresponding alarm signal.

In conclusion the present invention can prevent large-scale water leakage in advance, easy to operate, easy to maintain, effective guarantee production The important equipment of life area effectively avoids generating unnecessary economic loss from damage.

The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.

Claims (9)

1. a kind of central air-conditioning intelligent water leakage monitoring device, including central processing unit, it is characterised in that:Further include chilled water humidity Induction module, drip tray induction module, condensed water humidity inductive module and alarm module, the chilled water humidity inductive module, The inductive signal detected is sent to the central processing unit by drip tray induction module, condensed water humidity inductive module respectively, The central processing unit sends a control signal to the alarm module according to the inductive signal received, and the alarm module also connects It is connected to optical coupled switch module, the central processing unit controls the alarm module by the optical coupled switch module;The freezing Water humidity inductive module includes leak water detdction element and freezing water controller, and the freezing water controller detects the leak water detdction The resistance value of element, and leak information will be determined according to the resistance value, leak information is sent to by the freezing water controller The central processing unit, the leak water detdction element is separately mounted to the chilled water water delivery pipe outer wall of central air-conditioning, chilled water returns Pipe outer wall, water pipe weld and water valve interface.
2. central air-conditioning intelligent water leakage monitoring device according to claim 1, it is characterised in that:The freezing water controller For the monostable flipflop being made of 555 timers.
3. central air-conditioning intelligent water leakage monitoring device according to claim 2, it is characterised in that:The freezing water controller Including sequentially connected Power Entry Module, rectification filtering module, overvoltage protective module, Voltage stabilizing module and 555 timers, also wrap The detection branch of the switch button and leak water detdction element composition of concatenation is included, the detection branch is located at the defeated of the Voltage stabilizing module Outlet is connect by an amplifying circuit with 555 timer, the connection of the switch button and the leak water detdction element Point is by a diode and a resistance eutral grounding, and the output end of 555 timer is equipped with indicator light, with the central processing The input terminal of device connects.
4. central air-conditioning intelligent water leakage monitoring device according to claim 1, it is characterised in that:The central processing unit is single Piece machine, the microcontroller be equipped with the input pin of chilled water humidity inductive module, condensed water humidity inductive module input pin, The input pin of drip tray induction module, the output pin of alarm module, the output pin of optical coupled switch module and leak state Output pin.
5. central air-conditioning intelligent water leakage monitoring device according to claim 1, it is characterised in that:The condensed water humidity inductive Module includes leak water detdction element and condensation water controller, and the condensation water controller detects the resistance of the leak water detdction element Value, and leak information will be determined according to the resistance value, leak information is sent to the centre by the condensation water controller Device is managed, condensate water discharging pipe outer wall, water pipe weld and the water valve that the leak water detdction element is separately mounted to central air-conditioning connect At mouthful.
6. central air-conditioning intelligent water leakage monitoring device according to claim 5, it is characterised in that:The condensation water controller is The monostable flipflop being made of 555 timers.
7. central air-conditioning intelligent water leakage monitoring device according to claim 6, it is characterised in that:The condensation water controller packet Sequentially connected Power Entry Module, rectification filtering module, overvoltage protective module, Voltage stabilizing module and 555 timers are included, further include The detection branch of switch button and leak water detdction the element composition of concatenation, the detection branch are located at the output of the Voltage stabilizing module End, is connect by an amplifying circuit with 555 timer, the tie point of the switch button and the leak water detdction element By a diode and a resistance eutral grounding, the output end of 555 timer is equipped with indicator light, with the central processing unit Input terminal connection.
8. according to the central air-conditioning intelligent water leakage monitoring device of claim 3 or 7, it is characterised in that:The leak water detdction member Part is water logging cable, and the water logging cable is made of two electric polymers, and the resistance value of unit length is definite value.
9. central air-conditioning intelligent water leakage monitoring device according to claim 1, it is characterised in that:The drip tray induction module Floating-ball level switch inside drip tray including centrally disposed air-conditioning, one end ground connection of the floating-ball level switch, one end Connect the central processing unit, the floating-ball level switch includes floating ball and magnetic reed switch, in closed non-magnetic metal tube or Non-magnetic metal tube or plastic tube are passed through one or more bands to be magnetic material by the one or more magnetic reed switch of setting in plastic tube The floating ball of material is arranged with magnetic reed switch in the drip tray using fixed double -loop control floating ball, and the floating ball connects with described Liquid rises or falls in water pond.
CN201510633686.2A 2015-09-28 2015-09-28 Central air-conditioning intelligent water leakage monitoring device CN106557056B (en)

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CN106557056B true CN106557056B (en) 2018-11-02

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Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6476363B1 (en) * 2000-09-25 2002-11-05 Gecko Electronique, Inc. Resistive water sensor for hot tub spa heating element
CN203518122U (en) * 2013-08-23 2014-04-02 白鹏 Water leakage alarm system of air conditioner special for machine room
CN104266320A (en) * 2014-09-17 2015-01-07 国家电网公司 Water leakage monitoring system
CN204513707U (en) * 2015-03-25 2015-07-29 深圳供电局有限公司 The air conditioner monitoring devices that leaks
CN204665569U (en) * 2015-05-04 2015-09-23 河南中烟工业有限责任公司 Air conditioner leak water alarming of electric substation opens and stops control system

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