CN206861977U - A kind of defrosting control system of air-cooler - Google Patents
A kind of defrosting control system of air-cooler Download PDFInfo
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- CN206861977U CN206861977U CN201720627200.9U CN201720627200U CN206861977U CN 206861977 U CN206861977 U CN 206861977U CN 201720627200 U CN201720627200 U CN 201720627200U CN 206861977 U CN206861977 U CN 206861977U
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- cooler
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- video camera
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Abstract
The utility model belongs to refrigeration system control technology field, more particularly to a kind of defrosting control system of air-cooler, including intelligent identification module and control cabinet, intelligent identification module includes host device and video camera, host device is installed in refrigeration unit control cabinet, for video camera on the wall after air-cooler, video camera connects host device by communication cable；Host device is communicated with controller PLC；Controller PLC is provided with control cabinet, and air-cooler defrost heating tube, air-cooler drip tray electrothermal tube and the liquid supply electromagnetic valve being connected with controller PLC；Controller PLC is also connected with being arranged on the cryogenic temperature transmitter in room and the fin defrost temperature transmitter being connected with air-cooler fin.By using this programme, it can effectively keep the cleaning of fin surface frostless, improve the heat exchange frequency of air-cooler, reached energy-saving purpose.
Description
Technical field
The utility model belongs to refrigeration system control technology field, and in particular to a kind of defrosting control system of air-cooler.
Background technology
In recent years, as China's expanding economy, the construction of middle-size and small-size freezer are more and more.Existing freezer is big
More using air-cooler as evaporator, it has the advantages that floor space is small, simple to operate, heat transfer efficiency is high, is current refrigeration system
System applies most common evaporator.Air-cooler is when carrying out forced air supply operation, due to increasing heat transfer temperature difference, therefore in, it is low
The air-cooler surface frosting of temp, refrigerating system is quickly.Further, in big-and-middle-sized freezer project, made mostly using Parallel sets
For low-temperature receiver, and refrigeration system in parallel, after the liquid supply electromagnetic valve of air-cooler is cut off, still working, pressing better than other air-coolers
Contracting machine needs to continue to run with, and the refrigerant of residual continues to evaporate in the air-cooler being stopped, and has been further exacerbated by cold
The surface frost of blower fan.
Currently used defrost mode has three kinds of electric heater defrosting, water defrosting and hot working medium defrosting, wherein electrothermal defrosting system
Simply, easy to operate, but power consumption is big, does not save, electric heating tube power is larger, fragile and potential safety hazard be present.
The defrosting control mode of existing air-cooler uses traditional time cycle and temperature control mostly, and this method lacks
Point is that system can only carry out defrost operation according to the time cycle set, defrosts sometimes insufficient, and heating amount is excessive sometimes,
Waste electric energy；On the other hand, this kind of defrosting system electrical equipment is more, and temperature fluctuation is larger in freezer, electrical heating elements
Power is larger fragile, causes defrosting system easily destroyed；When defrost is not thorough, easily cause vicious circle, frost layer it is more long-pending more
Thickness, refrigerating efficiency reduce, and also occur that system returns liquid when serious, cause compressor to be damaged.
Therefore it provides a kind of defrosting control system of air-cooler, with intelligent automatic defrosting control method, very must be
Want.
Utility model content
The purpose of this utility model be to solve the problems, such as conventional refrigeration power consumption present on air-cooler defrosting it is big,
The problems such as defrost effect is undesirable, there is provided a kind of air-cooler goes out double control system, and intelligent identification technology is applied into air-cooler
Defrosting system control.
To achieve the above object, the utility model provides following technical scheme：
A kind of defrosting control system of air-cooler, including intelligent identification module and control cabinet, it is characterised in that：The intelligence
Identification module includes host device and video camera, and the host device is installed in refrigeration unit control cabinet, and video camera is arranged on
On wall after air-cooler, video camera connects host device by communication cable；Host device is communicated with controller PLC；
Controller PLC is provided with the control cabinet, and be connected with controller PLC air-cooler defrost heating tube, air-cooler drip tray
Electrothermal tube and liquid supply electromagnetic valve；The controller PLC is also connected with being arranged on the cryogenic temperature transmitter in room, controller PLC
It is also connected with the fin defrost temperature transmitter being connected with air-cooler fin.
Preferably, set in the host device output processing unit and judging unit, the video camera pass through channel radio
News mode connects processing unit, processing unit connection judgment unit, judging unit connection controller PLC.
Preferably, the controller PLC exports cooling signals to A.C. contactor 1KM, and then control air-cooler motor
And liquid supply electromagnetic valve.
Preferably, the controller PLC, while cooling signals export, output services signal to the main frame at interval is set
It is standby, host device obtain it is electric, control video camera be operated.
Preferably, the host device connects controller PLC by images match output channel and exports stopping refrigeration
Signal.
Preferably, controller PLC controls air-cooler point defrost heating tube by exporting defrosting signal, and connect by exchange
Tentaculum 2KM controls air-cooler drip tray electrothermal tube.
Compared with prior art, the beneficial effects of the utility model are：
A kind of defrosting control system for air-cooler that this programme provides, is applied to defrosting system by intelligent identification technology.Profit
With intelligent identification technology, the frost thickness of round-the-clock observation air-cooler fin surface, by setting, the decorum can independently judge
Whether the thickness of frost layer has reached the degree for needing to carry out defrost operation.When frost layer is relatively thin, even if air-cooler long operational time,
Defrost instruction will not be exported, it is therefore prevented that the appearance of excessive defrost phenomenon；Frost layer is thickening in a short time, even if apart from last time defrost
Time is shorter, can also export defrost instruction, the problems such as avoiding the defrost inconvenience brought after frost layer is blocked up.By using this programme,
It can effectively keep the cleaning of fin surface frostless, improve the heat exchange frequency of air-cooler, reached energy-saving purpose.
In addition, the utility model Method And Principle is reliable, step is simple, has very extensive application prospect.
As can be seen here, the utility model compared with prior art, has substantive distinguishing features and progress, its beneficial effect implemented
Fruit is also obvious.
Brief description of the drawings
Fig. 1 is a kind of module connection diagram of the defrosting control system of air-cooler provided by the utility model.
Fig. 2 is a kind of controller PLC control loops signal of the defrosting control system of air-cooler provided by the utility model
Figure.
Fig. 3 is that a kind of intelligent identification module control loop of the defrosting control system of air-cooler provided by the utility model is shown
It is intended to.
Wherein, 1- intelligent identification modules, 1.1- host devices, 1.11- processing units, 1.12- judging units, 1.2- shootings
Machine, 1.3- images match output channels, 2- control cabinets, 2.1- controllers PLC, 2.2- air-cooler defrost heating tube, 2.3- cold wind
Machine drip tray electrothermal tube, 2.4- liquid supply electromagnetic valves, 2.5- refrigeration fan motors, 3- cryogenic temperature transmitters, 4- fin defrost temperature
Spend transmitter.
Embodiment
Below in conjunction with the accompanying drawings 1 to 3 and the utility model is elaborated by specific embodiment, following examples are
To explanation of the present utility model, and the utility model is not limited to implementation below.
Embodiment 1
A kind of defrosting control system of air-cooler, including intelligent identification module 1 and control cabinet 2, it is characterised in that：The intelligence
Energy identification module 1 includes host device 1.1 and video camera 1.2, and the host device 1.1 is installed in refrigeration unit control cabinet,
On the wall after air-cooler, video camera 1.2 passes through communication cable and connects host device 1.1 video camera 1.2；Host device
1.1 are communicated with controller PLC2.1；Be provided with controller PLC2.1 in the control cabinet 2, and with controller PLC2.1 phases
Air-cooler defrost heating tube 2.2, air-cooler drip tray electrothermal tube 2.3 and liquid supply electromagnetic valve 2.4 even；The controller PLC2.1
It is also connected with being arranged on the cryogenic temperature transmitter 3 in room, controller PLC2.1 is also connected with the fin being connected with air-cooler fin
Defrost temperature transmitter 4.
In the present embodiment, output processing unit 1.11 and judging unit 1.12 are set in the host device 1.1, it is described to take the photograph
Camera 1.2 connects processing unit 1.11, the connection judgment unit 1.12 of processing unit 1.11, judging unit by wireless communication mode
1.12 connection controller PLC2.1.
In the present embodiment, the controller PLC2.1 exports cooling signals to A.C. contactor 1KM, and then controls cold wind
Electromechanical machine 2.5 and liquid supply electromagnetic valve 2.4.
In the present embodiment, the controller PLC2.1 is while cooling signals export, the output services signal at interval
To host device 1.1, host device 1.1 must be electric, and control video camera 1.2 is operated.
In the present embodiment, the host device 1.1 connects controller PLC2.1 simultaneously by images match output channel 1.3
Output stops cooling signals.
In the present embodiment, controller PLC2.1 controls air-cooler point defrost heating tube 2.2 by exporting defrosting signal, and
Air-cooler drip tray electrothermal tube 2.3 is controlled by A.C. contactor 2KM.
Embodiment 2
A kind of defrosting control system of air-cooler, before refrigeration plant debugging is carried out, first pass through video camera 1.2 and carry out cold wind
The IMAQ of machine fin normal condition, from different angles, gather 4 ~ 5 times；Inside host device 1.1, it is thick to preset fin
Degree is to identify to 3mm more than 2.Host device 1.1 is communicated with refrigeration host computer controller PLC2.1, and is utilized and collected
Each freezer in each air-cooler fin view data, will determine that result exports after being handled and give controller PLC2.1.
Refrigeration plant power transmission, freezer detects room temperature by cryogenic temperature transmitter 3, and temperature signal is given into control
Device PLC2.1.When room temperature is higher than the temperature value that controller PLC2.1 is set, controller PLC2.1 output cold wind mechanism cold letters
Number arrive control loop 21,22 two points, obtain A.C. contactor 1KM electric, refrigeration fan motor 2.5 and liquid supply electromagnetic valve 2.4
Open, freezer starts to freeze；When there is cooling signals output, controller PLC2.1 is every 1 hour to host device 1.1 1
Working signal, the time are accumulated by the time relay KT2 inside controller PLC2.1；Host device 1.1 obtains electric, opening
Camera 1.2, the fin view data of each air-cooler just have collected in host device 1.1 in each freezer.During IMAQ
Between in controller PLC2.1 for can adjusting data, can be according to situation about grasping during debugging, when site setup one is suitable
Between, with collect clear data, can carry out accurately judge be advisable.When no cooling signals export, controller
Time relay KT2 inside PLC2.1 is without accumulated time.
When the fin image that camera 1.2 collects, fin is found because frosting, thickness has reached 2 to 3mm, and main frame is set
Standby 1.1 send the signal that can not be identified, the signal is opened for mono- by images match output channel 1.3 to controller PLC2.1
The signal of pass amount, to connect the defrost of this air-cooler instruction, after controller PLC2.1 is connected to the instruction, first stop cooling signals
Output, disconnect A.C. contactor 1KM control loop, refrigeration fan motor 2.5 and liquid supply electromagnetic valve 2.4 power off, and stop system
It is cold；It is delayed after some seconds, controller PLC2.1 starts to export " air-cooler defrosting signal " to the air-cooler in requisition for defrost, should
Signal is connected by 27 on air-blower control loop, 29 two points, and air-cooler defrost heating tube 2.2 is connected, and uses the friendship of defrost
Stream contactor 2KM1 obtains electric adhesive, meanwhile, 2KM2 also therefore must be electric, and air-cooler drip tray electrothermal tube 2.3 is also connected, and defrost is opened
Begin.
For air-cooler in defrost, fin defrost temperature transmitter 4 detects the temperature of fin in real time.Built in controller PLC2.1
There is defrost clock, the time of defrost clock is settable, and the general setting defrost time is 15 to 30min.When defrost clock
Between do not arrive, fin defrost temperature transmitter 4 detects the temperature of fin when reaching 15 DEG C, and controller PLC2.1 can positive closing defrost
Signal, stop defrosting operation.
A kind of defrosting control system for air-cooler that this programme provides, is applied to defrosting system by intelligent identification technology.Profit
With intelligent identification technology, the frost thickness of round-the-clock observation air-cooler fin surface, by setting, the decorum can independently judge
Whether the thickness of frost layer has reached the degree for needing to carry out defrost operation.When frost layer is relatively thin, even if air-cooler long operational time,
Defrost instruction will not be exported, it is therefore prevented that the appearance of excessive defrost phenomenon；Frost layer is thickening in a short time, even if apart from last time defrost
Time is shorter, can also export defrost instruction, the problems such as avoiding the defrost inconvenience brought after frost layer is blocked up.By using this programme,
It can effectively keep the cleaning of fin surface frostless, improve the heat exchange frequency of air-cooler, reached energy-saving purpose.
It is described above, only it is preferred embodiment of the present utility model, any formal limit is not done to the utility model
System, it is all that all any modification, equivalent and improvement etc. are done within the spirit and principles of the utility model, it should be included in this reality
Within new protection domain.
Claims (6)
1. a kind of defrosting control system of air-cooler, including intelligent identification module and control cabinet, it is characterised in that：The intelligence is known
Other module includes host device and video camera, and the host device is installed in refrigeration unit control cabinet, and video camera is arranged on cold
On wall after blower fan, video camera connects host device by communication cable；Host device is communicated with controller PLC；Institute
State and be provided with controller PLC in control cabinet, and the air-cooler defrost heating tube that is connected with controller PLC, air-cooler drip tray are electric
Heat pipe and liquid supply electromagnetic valve；The controller PLC is also connected with being arranged on the cryogenic temperature transmitter in room, and controller PLC is also
Connect the fin defrost temperature transmitter being connected with air-cooler fin.
A kind of 2. defrosting control system of air-cooler as claimed in claim 1, it is characterised in that：Set in the host device defeated
Go out processing unit and judging unit, the video camera connects processing unit, processing unit connection judgment by wireless communication mode
Unit, judging unit connection controller PLC.
A kind of 3. defrosting control system of air-cooler as claimed in claim 1, it is characterised in that：The controller PLC outputs
Cooling signals control air-cooler motor and liquid supply electromagnetic valve to A.C. contactor 1KM.
A kind of 4. defrosting control system of air-cooler as claimed in claim 3, it is characterised in that：The controller PLC is making
While cold signal output, for the output services signal at interval to host device, host device obtains electric, control video camera progress work
Make.
A kind of 5. defrosting control system of air-cooler as claimed in claim 1 or 2, it is characterised in that：The host device leads to
Cross images match output channel connection controller PLC and export stopping cooling signals.
A kind of 6. defrosting control system of air-cooler as claimed in claim 5, it is characterised in that：Controller PLC passes through output
Defrosting signal controls air-cooler point defrost heating tube, and controls air-cooler drip tray electrothermal tube by A.C. contactor 2KM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720627200.9U CN206861977U (en) | 2017-06-01 | 2017-06-01 | A kind of defrosting control system of air-cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720627200.9U CN206861977U (en) | 2017-06-01 | 2017-06-01 | A kind of defrosting control system of air-cooler |
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| Publication Number | Publication Date |
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| CN206861977U true CN206861977U (en) | 2018-01-09 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108613460A (en) * | 2018-06-26 | 2018-10-02 | 北京工业大学 | A kind of air source heat pump control frost method for surveying white technology based on image recognition |
| CN110657617A (en) * | 2018-06-29 | 2020-01-07 | 博西华电器（江苏）有限公司 | Defrosting control method and device for refrigerator and refrigerator |
| CN111256401A (en) * | 2020-01-20 | 2020-06-09 | 连云港韬惠实业有限公司 | Automatic defrosting control system and control method for air cooler of refrigeration house |
-
2017
- 2017-06-01 CN CN201720627200.9U patent/CN206861977U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108613460A (en) * | 2018-06-26 | 2018-10-02 | 北京工业大学 | A kind of air source heat pump control frost method for surveying white technology based on image recognition |
| CN110657617A (en) * | 2018-06-29 | 2020-01-07 | 博西华电器（江苏）有限公司 | Defrosting control method and device for refrigerator and refrigerator |
| CN111256401A (en) * | 2020-01-20 | 2020-06-09 | 连云港韬惠实业有限公司 | Automatic defrosting control system and control method for air cooler of refrigeration house |
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