CN105091260B - It is a kind of for the anti-freeze protection device of air-conditioner set water system and anti-frost protection method - Google Patents
It is a kind of for the anti-freeze protection device of air-conditioner set water system and anti-frost protection method Download PDFInfo
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- CN105091260B CN105091260B CN201510511683.1A CN201510511683A CN105091260B CN 105091260 B CN105091260 B CN 105091260B CN 201510511683 A CN201510511683 A CN 201510511683A CN 105091260 B CN105091260 B CN 105091260B
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- water temperature
- air
- power supply
- conditioner set
- controller
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
Abstract
The present invention provides a kind of for the anti-freeze protection device of air-conditioner set water system and anti-frost protection method, which includes：It is disposed in the outdoor the controller in machine, the cooling-water temperature sensor in air-conditioner set water system and the first stand-by power supply；Controller, for when monitoring that air-conditioner set is in power-down mode, starting the first stand-by power supply, obtain the water temperature of the air-conditioner set water system of cooling-water temperature sensor acquisition, and judge whether water temperature is less than or equal to default water temperature, when water temperature is less than or equal to default water temperature, send antifreeze alarm signal.Controller in above-mentioned anti-freeze protection device is in the case where air-conditioner set powers off; by starting the first stand-by power supply; obtain the water temperature of the water system of cooling-water temperature sensor acquisition; and when water temperature is less than or equal to default water temperature; send antifreeze alarm signal; and then user is reminded to carry out antifreeze processing to air-conditioner set water system, to provide safe and reliable guarantee with the stable operation of water and the air-conditioner set of coolant media.
Description
Technical field
The present invention relates to home appliance technical field more particularly to a kind of anti-frost protection dresses for air-conditioner set water system
Put and anti-frost protection method, using the air-conditioner set water system anti-freeze protection device air-conditioning system.
Background technology
In the region that water resource is enriched, present more and more users select the air-conditioning system using water and refrigerant as heat transferring medium
It unites to meet the needs to freezing and heating, the convenient saving operating cost again of such air-conditioning system i.e. water intaking, while is also one
The type of cooling of kind environment-friendly high-efficiency and economy, meets energy-saving and emission-reduction policy.Thus, such air-cooled heat-pump cold (heat) water dispenser group quilt
It is widely used in design of HVAC system.However, to the relevant water system such as the water-side heat inside water system and unit
The antifreezing measures demand of the cold accessory of controlling is more perfect.
Particularly in the low region of winter temperature, since outdoor environment temperature is down to the freezing point of water, in such region
Under environment, unit winter for a long time without using or do not arranged in time under short time powering-off state due to various reasons
Except the water in unit water system, the freezing of unit water system may result in.And the water system anti-frost protection measure to unit at present
Unit is all based in operational process or to power on anti-frost protection in ideal case effective, once it cuts off the power, this this anti-frost protection
It will fail.It if, will be quickly based on conditions above user since various operation errors do not have the water in timely removal system
Water system freezeout, water system pipeline bursting by freezing are induced, the heat exchanger tube of air-conditioner set water-side heat is squeezed flat and burst by ice,
It ultimately results in water system and coolant media system mutually immerses, brought to user using upper trouble, and return air-conditioning manufacturer
Cause major maintenance economic loss.
The content of the invention
For above-mentioned technical problem, the present invention provides a kind of anti-freeze protection device for air-conditioner set water system and prevent
Freeze guard method, using the air-conditioner set water system anti-freeze protection device air-conditioning system, realize air-conditioner set power off
In the case of, the purpose protected water system.
In a first aspect, the present invention provides a kind of anti-freeze protection device for air-conditioner set water system, including：It is arranged on
Controller in outdoor unit, the cooling-water temperature sensor in air-conditioner set water system and the first stand-by power supply, the water temperature sensing
Device and first stand-by power supply are connected with the controller；
The controller, for when monitoring that air-conditioner set is in power-down mode, starting for controller power supply
One stand-by power supply, obtains the water temperature of the air-conditioner set water system of the cooling-water temperature sensor acquisition, and judges whether the water temperature is small
In equal to default water temperature, when the water temperature is less than or equal to default water temperature, antifreeze alarm signal is sent.
Optionally, described device further includes：
The line control machine being disposed in the interior and the second stand-by power supply being connected with the line control machine；
Line control machine starts the second standby electricity for line control machine power supply when monitoring that air-conditioner set is in power-down mode
Source, and when receiving the antifreeze alarm signal that the controller is sent, carry out antifreeze alarm, send antifreeze alarm signal and/
Or show the corresponding warning message of the antifreeze alarm signal.
Optionally, the alarm port for remote alarms is equipped on the controller and the line control machine.
Optionally, first stand-by power supply and second stand-by power supply are accumulation electrical source.
Second aspect, the present invention also provides a kind of based on the above-mentioned anti-freeze protection device for air-conditioner set water system
Anti-frost protection method, including：
Monitoring control devices in outdoor unit to air-conditioner set be in power-down mode when, start first for controller power supply
Stand-by power supply；
The controller receives the water temperature of the air-conditioner set water system of cooling-water temperature sensor acquisition；
The controller judges whether the water temperature is less than or equal to default water temperature；
The controller sends antifreeze alarm signal when the water temperature is less than or equal to default water temperature.
Optionally, it is described to send antifreeze alarm signal when the water temperature is less than or equal to default water temperature, including：
When the water temperature is less than or equal to default water temperature, the controller remotely sends alarm signal by port of alarming.
Optionally, the method further includes：
When the line control machine being disposed in the interior monitors that air-conditioner set is in power-down mode, start for line control machine power supply
One stand-by power supply；
The line control machine when receiving the antifreeze alarm signal that the controller is sent, carry out antifreeze alarm, send it is anti-
Freeze alarm signal and/or show the corresponding warning message of the antifreeze alarm signal.
Optionally, the line control machine is when receiving the antifreeze alarm signal that the controller is sent, carry out antifreeze alarm,
It sends antifreeze alarm signal and/or shows the corresponding warning message of the antifreeze alarm signal, including：
The line control machine carries out antifreeze alarm, passes through report when receiving the antifreeze alarm signal that the controller is sent
Alert port remotely sends alarm signal, and/or shows the corresponding warning message of the antifreeze alarm signal.
The third aspect, the present invention also provides a kind of air-conditioning system, including above-mentioned for the anti-of air-conditioner set water system
Freeze protective device.
Optionally, it is first stand-by power supply and second stand-by power supply when the air-conditioning system is power up mode
It charges.
As shown from the above technical solution, a kind of anti-freeze protection device for air-conditioner set water system provided by the invention and
Anti-frost protection method, using the air-conditioner set water system anti-freeze protection device air-conditioning system, the air-conditioner set power-off
In the case of, controller obtains the water temperature of the water system of cooling-water temperature sensor acquisition by starting the first stand-by power supply, by acquisition
Water temperature sends antifreeze alarm signal compared with default water temperature, and when the water temperature of acquisition is less than or equal to default water temperature, and then
User is reminded to carry out antifreeze processing to air-conditioner set water system, to be provided with the stable operation of water and the air-conditioner set of coolant media
Safe and reliable guarantee.
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
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, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these figures.
Fig. 1 is that a kind of structure for anti-freeze protection device for air-conditioner set water system that one embodiment of the invention provides is shown
It is intended to；
Fig. 2 is the flow diagram for the air-conditioner set water system anti-frost protection method that one embodiment of the invention provides；
Fig. 3 is the flow diagram for the air-conditioner set water system anti-frost protection method that another embodiment of the present invention provides.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment 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 making creative work
Embodiment belongs to the scope of protection of the invention.
Fig. 1 shows a kind of structure of anti-freeze protection device for air-conditioner set water system provided in an embodiment of the present invention
Schematic diagram, as shown in Figure 1, the anti-freeze protection device includes：It is disposed in the outdoor controller 1 in machine, positioned at air-conditioner set water system
2 and first stand-by power supply 3 of cooling-water temperature sensor in system, the cooling-water temperature sensor 2 and first stand-by power supply 3 with the control
Device 1 processed is connected.
The controller, for when monitoring that air-conditioner set is in power-down mode, starting for controller power supply
One stand-by power supply, obtains the water temperature of the air-conditioner set water system of the cooling-water temperature sensor acquisition, and judges whether the water temperature is small
In equal to default water temperature, when the water temperature is less than or equal to default water temperature, antifreeze alarm signal is sent.Above-mentioned anti-freeze protection device
In the case where the air-conditioner set powers off, controller obtains the water of cooling-water temperature sensor acquisition by starting the first stand-by power supply
The water temperature of system, by the water temperature of acquisition compared with default water temperature, and when the water temperature of acquisition is less than or equal to default water temperature, hair
Go out antifreeze alarm signal, and then user is reminded to carry out antifreeze processing to air-conditioner set water system, be with the sky of water and coolant media
The stable operation of unit is adjusted to provide safe and reliable guarantee.
It should be noted that controller noted above 1 is due to being disposed in the outdoor in machine, particular by being arranged on the controller
First alarm port 4, alarm command is sent to staff's such as office staff by way of remote transmission
It mail or is sent in a manner of short message in the portable mobile phone of staff, staff is enable timely to obtain
Know the antifreeze alarm signal, and antifreeze processing timely is carried out to air-conditioner set water system, such as：In time in discharge water system
Water such as powers at the air-conditioner set.
It can also know above-mentioned antifreeze alarm signal in time in order to enable indoor, the anti-freeze protection device in the present embodiment is also
Including 5 and second stand-by power supply 6 of line control machine for being connected and being disposed in the interior with the controller 1, second stand-by power supply 6 with
The line control machine 5 is connected.
Line control machine 5 starts the second standby electricity powered for the line control machine 5 when monitoring that air-conditioner set is in power-down mode
Source, and when receiving the antifreeze alarm signal that the controller is sent, carry out antifreeze alarm, send antifreeze alarm signal and/
Or show the corresponding warning message of the antifreeze alarm signal.
As the first alarm port 4 set in controller noted above, it is also equipped with using on the line control machine 5 in the present embodiment
Alarm port 7 in the second of remote alarms, this and port 7 of alarming can be sent alarm command by way of remote transmission
To staff, such as the mail of office staff or that staff is sent in a manner of short message is portable
In mobile phone, staff is enable timely to know the alarm command, and timely the water system of air-conditioner set is carried out antifreeze
Processing, such as：The water in discharge water system or multi type air conditioner group power on etc. in time.
It will be appreciated that above-mentioned first stand-by power supply, 3 and second stand-by power supply 6 can be battery, or accumulation of energy electricity
Source when that when air-conditioner set is in power up mode, can be that the first stand-by power supply 3 and the second stand-by power supply 6 charge, be being saved
While saving the energy, and staff is not required specially to replace the first stand-by power supply 3 and the second stand-by power supply 6, saved a large amount of
Human resources.
Above-mentioned anti-freeze protection device is that controller is powered after air-conditioner set power-off by the first stand-by power supply, is then carried out
Antifreeze water temperature detection judges, and in time user is reminded to prevent the water system of air-conditioner set and water-side heat bursting by freezing, solve because
Air-conditioner set winter powers off or and the failure of antifreeze safeguard procedures and freezing air-conditioner set, while pass through controller output report substantially
Self alarm of alert, line control machine, line control machine output alarm repeatedly remind user to cause the water system of air-conditioner set when forgetting to discharge water
The problem of icing and then freezing unit.
Fig. 2 shows the anti-frost protection side based on above-mentioned water system anti-freeze protection device that one embodiment of the invention provides
Method, as shown in Fig. 2, this method comprises the following steps：
201st, the monitoring control devices in outdoor unit to air-conditioner set be in power-down mode when, start for the controller power supply
First stand-by power supply.
202nd, the controller receives the water temperature of the air-conditioner set water system of cooling-water temperature sensor acquisition.
203rd, the controller judges whether the water temperature is less than or equal to default water temperature.
204th, the controller sends antifreeze alarm signal when the water temperature is less than or equal to default water temperature.
Above-mentioned anti-frost protection method air-conditioner set power off in the case of, controller by starting the first stand-by power supply, and
The water temperature of the water system of cooling-water temperature sensor acquisition is obtained, by the water temperature of acquisition compared with default water temperature, and when the water obtained
When temperature is less than or equal to default water temperature, antifreeze alarm signal is sent, and then user is reminded to carry out antifreeze place to air-conditioner set water system
Reason, to provide safe and reliable guarantee with the stable operation of water and the air-conditioner set of coolant media.
In a preferred embodiment of the present embodiment, the controller remotely sends antifreeze report by port of alarming
Alert signal is to staff, staff to be reminded timely to carry out antifreeze processing as early as possible.
In a preferred embodiment of the present embodiment, the method that antifreeze alarm is carried out by line control machine is further comprised,
The above method is described in detail by specific embodiment below, as shown in figure 3, this method comprises the following steps：
301st, the pattern of controller and line control machine detection air-conditioner set.
302nd, controller and line control machine be when it is power-down mode to monitor air-conditioner set, be respectively started the first stand-by power supply and
Start the second stand-by power supply.
303rd, controller obtains the water temperature of the air-conditioner set water system of cooling-water temperature sensor acquisition.
304th, controller judges whether the water temperature is less than or equal to default water temperature, if it is, step 305 is performed, otherwise,
Return to step 303.
305th, controller sends antifreeze alarm signal, while sends antifreeze alarm signal to line control machine, and line control machine is receiving
During the antifreeze alarm signal sent to the controller, antifreeze alarm is carried out, send antifreeze alarm signal and/or display is described anti-
Freeze the corresponding warning message of alarm signal.
In above-mentioned steps 305, the line control machine is remotely sent anti-while antifreeze alarm is carried out by port of alarming
Freeze alarm signal.Wherein, the corresponding warning message of antifreeze alarm signal can in order to control device obtain water system water temperature reality
Border temperature, so that staff can decide whether to need to carry out anti-frost protection immediately according to the temperature.
It will be appreciated that can in a manner of controller noted above and line control machine are sent antifreeze alarm signal as needed and
The time of prompting is set, for example each 1 minute reminds once, reminded with default sound or with short message or
Person's other modes are reminded, and the present embodiment is only used for illustrating, the mode and time of its antifreeze alarm are not defined.
Antifreeze alarm signal is sent by controller, line control machine in the above method, and repeatedly user is reminded to prevent air-conditioning
Unit water side is freezing, provides safe and reliable measure in the antifreeze of winter for air-conditioner set, while is also with water and coolant media
Air-conditioning system stable operation safe and reliable guarantee is provided.
The present invention also provides a kind of air-conditioning system, including above-mentioned anti-freeze protection device.
It is described first when the air-conditioning system is power up mode in a preferred embodiment of the present embodiment
Stand-by power supply and second stand-by power supply charge.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
The present invention is described in detail, it will be understood by those of ordinary skill in the art that；It still can be to foregoing each implementation
Technical solution recorded in example modifies or carries out equivalent substitution to which part technical characteristic；And these modification or
It replaces, the essence of appropriate technical solution is not made to depart from the spirit and scope of various embodiments of the present invention technical solution.
Claims (7)
1. a kind of anti-freeze protection device for air-conditioner set water system, which is characterized in that including：The control being disposed in the outdoor in machine
Device processed, the cooling-water temperature sensor in air-conditioner set water system and the first stand-by power supply, the cooling-water temperature sensor and described first
Stand-by power supply is connected with the controller；
The controller, for when monitoring that air-conditioner set is in power-down mode, starting as the first standby of controller power supply
With power supply, the water temperature of the air-conditioner set water system of the cooling-water temperature sensor acquisition is obtained, and judges whether the water temperature is less than
In default water temperature, when the water temperature is less than or equal to default water temperature, antifreeze alarm signal is sent；Described device further includes：
The line control machine being disposed in the interior and the second stand-by power supply being connected with the line control machine；
Line control machine starts the second stand-by power supply for line control machine power supply when monitoring that air-conditioner set is in power-down mode, and
When receiving the antifreeze alarm signal that the controller is sent, carry out antifreeze alarm, send antifreeze alarm signal and/or display
The corresponding warning message of the antifreeze alarm signal.
2. the apparatus according to claim 1, which is characterized in that be equipped on the controller and the line control machine for remote
The alarm port of journey alarm.
3. the apparatus according to claim 1, which is characterized in that first stand-by power supply and second stand-by power supply are
Accumulation electrical source.
4. a kind of anti-freeze protection device for air-conditioner set water system based on any one of claim 1-3 is antifreeze
Guard method, which is characterized in that including：
Monitoring control devices in outdoor unit to air-conditioner set be in power-down mode when, start as the first spare of controller power supply
Power supply；
The controller receives the water temperature of the air-conditioner set water system of cooling-water temperature sensor acquisition；
The controller judges whether the water temperature is less than or equal to default water temperature；
The controller sends antifreeze alarm signal when the water temperature is less than or equal to default water temperature；
It is described to send antifreeze alarm signal when the water temperature is less than or equal to default water temperature, including：
When the water temperature is less than or equal to default water temperature, the controller remotely sends alarm signal by port of alarming；
The method further includes：
When the line control machine being disposed in the interior monitors that air-conditioner set is in power-down mode, start as the second standby of line control machine power supply
Use power supply；
The line control machine carries out antifreeze alarm, sends antifreeze report when receiving the antifreeze alarm signal that the controller is sent
It warns signal and/or shows the corresponding warning message of the antifreeze alarm signal.
5. according to the method described in claim 4, it is characterized in that, the line control machine is receiving the anti-of the controller transmission
When freezing alarm signal, antifreeze alarm is carried out, send antifreeze alarm signal and/or shows the corresponding alarm of the antifreeze alarm signal
Information, including：
The line control machine carries out antifreeze alarm, passes through warning end when receiving the antifreeze alarm signal that the controller is sent
Mouth is long-range to be sent alarm signal, and/or shows the corresponding warning message of the antifreeze alarm signal.
6. a kind of air-conditioning system, which is characterized in that including being used for air-conditioner set water system any one of claim 1-3
Anti-freeze protection device.
7. air-conditioning system according to claim 6, which is characterized in that be described when the air-conditioning system is power up mode
First stand-by power supply and second stand-by power supply charge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510511683.1A CN105091260B (en) | 2015-08-19 | 2015-08-19 | It is a kind of for the anti-freeze protection device of air-conditioner set water system and anti-frost protection method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510511683.1A CN105091260B (en) | 2015-08-19 | 2015-08-19 | It is a kind of for the anti-freeze protection device of air-conditioner set water system and anti-frost protection method |
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| CN105091260A CN105091260A (en) | 2015-11-25 |
| CN105091260B true CN105091260B (en) | 2018-05-22 |
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| CN201510511683.1A Active CN105091260B (en) | 2015-08-19 | 2015-08-19 | It is a kind of for the anti-freeze protection device of air-conditioner set water system and anti-frost protection method |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111059740A (en) * | 2019-12-25 | 2020-04-24 | 珠海格力电器股份有限公司 | Emergency automatic drainage device for air conditioner water system and control method thereof |
| CN111442584B (en) * | 2020-04-03 | 2021-11-02 | 广州视源电子科技股份有限公司 | Control method, device and system of heat pump, storage medium and related equipment |
| CN112082249B (en) * | 2020-08-25 | 2022-02-18 | 青岛海信移动通信技术股份有限公司 | Anti-freezing early warning method and system for air conditioner outdoor unit and server |
| CN113587181B (en) * | 2021-08-03 | 2022-12-09 | 青岛海信日立空调系统有限公司 | Multi-split air conditioner floor heating system |
| CN114199302A (en) * | 2021-10-22 | 2022-03-18 | 胡靖爽 | Forest conservation fire prevention pond support system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1979063A (en) * | 2005-12-02 | 2007-06-13 | 深圳麦克维尔空调有限公司 | Anti-freezing method of air conditioner |
| CN202598868U (en) * | 2012-05-07 | 2012-12-12 | Tcl空调器(中山)有限公司 | Air energy heat-pump water heater |
| CN104729171A (en) * | 2015-03-27 | 2015-06-24 | 珠海格力电器股份有限公司 | Cold-hot water unit anti-freezing protection device and method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101727914B1 (en) * | 2012-06-26 | 2017-04-18 | 엘지전자 주식회사 | Heat exchanger |
-
2015
- 2015-08-19 CN CN201510511683.1A patent/CN105091260B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1979063A (en) * | 2005-12-02 | 2007-06-13 | 深圳麦克维尔空调有限公司 | Anti-freezing method of air conditioner |
| CN202598868U (en) * | 2012-05-07 | 2012-12-12 | Tcl空调器(中山)有限公司 | Air energy heat-pump water heater |
| CN104729171A (en) * | 2015-03-27 | 2015-06-24 | 珠海格力电器股份有限公司 | Cold-hot water unit anti-freezing protection device and method |
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