CN106765889A - Air-conditioning and its pipeline antifreeze control method and device - Google Patents
Air-conditioning and its pipeline antifreeze control method and device Download PDFInfo
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- CN106765889A CN106765889A CN201611076668.XA CN201611076668A CN106765889A CN 106765889 A CN106765889 A CN 106765889A CN 201611076668 A CN201611076668 A CN 201611076668A CN 106765889 A CN106765889 A CN 106765889A
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- temperature
- pipeline
- water
- air
- antifreeze
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Classifications
-
- 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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/34—Heater, e.g. gas burner, electric air heater
Abstract
The present invention relates to air-conditioning and its pipeline antifreeze control method and device.Pipeline antifreeze control method includes：Operating states of the units is obtained, the temperature parameter of water temperature in reflection pipeline is obtained under compressor emergency shutdown state；When temperature parameter is less than presets antifreeze temperature, the electric heater installed additional on water pump and pipeline on pipeline is opened.The present invention is realized in the case of unit not use, and with simple and safe efficient mode, it is to avoid because temperature is too low, cause the water freezing in pipeline, especially the water freezing in heat exchanger, volumetric expansion damages heat exchanger etc..
Description
Technical field
The present invention relates to air-conditioning technical field, more particularly to a kind of air-conditioning and its pipeline antifreeze control method and device.
Background technology
In the winter time, easily there is icing freezing phenomena in air-conditioning duct.The antifreezing measures that prior art can be taken have many kinds
Type, the condition that can be possessed according to itself is selected：One is according to suitable proportion charging second two in water supply system pipeline
Alcohol anti-icing fluid；But water supply system thoroughly discharges water when compressor emergency shutdown.
In the above method, have the following disadvantages and not enough：Need user voluntarily to add anti-icing fluid, and anti-icing fluid addition
Depending on feeling by user completely；Need user manually to bleed off the water of system pipeline when not in use, and cannot ensure management in
Water by complete emptying.
Above two mode implements very inconvenient, it is necessary to manually adjust, and manually regulation carries out antifreeze
Can lead to not accurately and timely change regulation logic and waste power supply, it is impossible to realize the purpose of energy-conservation.
The content of the invention
The technical problems to be solved by the invention are directed to the deficiencies in the prior art, there is provided a kind of air-conditioning and its pipeline are antifreeze
Control method and device.The present invention is realized in the case of unit not use, with simple and safe efficient mode, it is to avoid due to
Temperature is too low, causes the water freezing in pipeline, especially the water freezing in heat exchanger, volumetric expansion, damages heat exchanger etc..
The technical scheme that the present invention solves above-mentioned technical problem is as follows：A kind of air-conditioning duct antifreeze control method, including such as
Lower step：
Operating states of the units is obtained, the temperature parameter of water temperature in reflection pipeline is obtained under compressor emergency shutdown state；
When temperature parameter is less than presets antifreeze temperature, the electric heater installed additional on water pump and pipeline on pipeline is opened.
The beneficial effects of the invention are as follows：The air-conditioning duct antifreeze control method that the present invention is provided is realized and not used in unit
In the case of, by obtaining the temperature parameter of water temperature in reflection pipeline, when temperature parameter is less than and presets antifreeze temperature, tube used for bottom pouring
The electric heater installed additional on water pump and pipeline on road, with simple and safe efficient mode, it is to avoid because temperature is too low, causes pipe
Water freezing in water freezing in road, especially heat exchanger, volumetric expansion damages heat exchanger etc..
On the basis of above-mentioned technical proposal, the present invention can also do following improvement.
Further, above-mentioned technical proposal also include real-time detection water flow switch whether normally closed, if water flow switch is just
Normally closed conjunction, then keep water pump and electric heater to open；If the non-normally closed of water flow switch, control water pump is closed, and keeps electricity
Heater is opened.
Beneficial effect using above-mentioned further scheme is：If water flow switch normally closed, show there is flowing in pipeline
Water, keep water pump and electrical heating to open because opening water pump, the water flowing in pipeline, and the water for flowing is not easy to freeze, plus
The heat effect of upper electric heater, makes the water in pipeline uniformly be brought rapidly up, it is ensured that antifreezing effect；If water flow switch is not normal
Closure, shows that current are abnormal, does not have circulating water in possible pipeline, and opening water pump can not flow the water in pipeline, therefore
Switch off the pump, the purpose for reaching defrosting is heated by electric heater, while energy saving, it is just normally closed that wait detects water flow switch
During conjunction, water pump is then turned on.
Further, above-mentioned technical proposal also includes the water temperature in real-time detection pipeline, when the water temperature in pipeline is higher than first
During preset temperature, control water pump is closed, and keeps electric heater to open；Wherein, the first preset temperature is higher than to preset antifreeze temperature.
Beneficial effect using above-mentioned further scheme is：When the water temperature in detecting pipeline reaches the first preset temperature
Then switch off the pump, heated by electric heater and keep water temperature, realization both can ensure antifreezing effect again with save energy.
Further, when the water temperature in pipeline is higher than the second preset temperature, control electric heater is closed, wherein second is default
Temperature is higher than the first preset temperature.
Beneficial effect using above-mentioned further scheme is：Water temperature in pipeline is detected reaches the second preset temperature
When, the possibility of now pipeline icing frost is minimum, then can close electric heater unit, and antifreeze effect is ensured while save energy
Really.
Further, the temperature parameter includes any one in environment temperature, inflow temperature and leaving water temperature.
Beneficial effect using above-mentioned further scheme is：Can be anti-by environment temperature, inflow temperature and leaving water temperature
Water temperature state in pipeline is answered, makes detection mode of the present invention flexible and changeable.
Another technical scheme that the present invention solves above-mentioned technical problem is as follows：A kind of air-conditioning duct freezing protection control device, bag
Include：
Set state detection unit, for obtaining operating states of the units, triggers temperature parameter prison under compressor emergency shutdown state
Survey unit；
Temperature parameter detection unit, the temperature for obtaining water temperature in reflection pipeline according to the triggering of set state detection unit
Degree parameter；
Control unit, for when temperature parameter is less than and presets antifreeze temperature, opening and adding on water pump and pipeline on pipeline
The electric heater of dress.
The beneficial effects of the invention are as follows：The air-conditioning duct freezing protection control device that the present invention is provided is realized and not used in unit
In the case of, by obtaining the temperature parameter of water temperature in reflection pipeline, when temperature parameter is less than and presets antifreeze temperature, tube used for bottom pouring
The electric heater installed additional on water pump and pipeline on road, with simple and safe efficient mode, it is to avoid because temperature is too low, causes pipe
Water freezing in water freezing in road, especially heat exchanger, volumetric expansion damages heat exchanger etc..
On the basis of above-mentioned technical proposal, the present invention can also do following improvement.
Further, whether just above-mentioned technical proposal also includes water flow switch detection unit, for real-time detection water flow switch
Normally closed conjunction；
Control unit, in water flow switch normally closed, keeping water pump and electric heater to open；In water flow switch not
During normally closed, control water pump is closed, and keeps electric heater to open.
Beneficial effect using above-mentioned further scheme is：If water flow switch normally closed, show there is flowing in pipeline
Water, keep water pump and electrical heating to open because opening water pump, the water flowing in pipeline, and the water for flowing is not easy to freeze, plus
The heat effect of upper electric heater, makes the water in pipeline uniformly be brought rapidly up, it is ensured that antifreezing effect；If water flow switch is not normal
Closure, shows that current are abnormal, does not have circulating water in possible pipeline, and opening water pump can not flow the water in pipeline, therefore
Switch off the pump, the purpose for reaching defrosting is heated by electric heater, while energy saving, it is just normally closed that wait detects water flow switch
During conjunction, water pump is then turned on.
Further, above-mentioned technical proposal also includes water temperature detection unit, for the water temperature in real-time detection pipeline；
Control unit, for when the water temperature in pipeline is higher than the first preset temperature, control water pump to be closed, and keeps electrical heating
Device is opened；Wherein, the first preset temperature is higher than to preset antifreeze temperature.
Beneficial effect using above-mentioned further scheme is：When the water temperature in detecting pipeline reaches the first preset temperature
Then switch off the pump, heated by electric heater and keep water temperature, realization both can ensure antifreezing effect again with save energy.
Further, when the water temperature during water temperature detection unit detects pipeline is higher than the second preset temperature, control unit control
Electric heater processed is closed, wherein the second preset temperature is higher than the first preset temperature.
Beneficial effect using above-mentioned further scheme is：Water temperature in pipeline is detected reaches the second preset temperature
When, the possibility of now pipeline icing frost is minimum, then can close electric heater unit, and antifreeze effect is ensured while save energy
Really.
Further, the temperature parameter includes any one in environment temperature, inflow temperature and leaving water temperature.
Beneficial effect using above-mentioned further scheme is：Can be anti-by environment temperature, inflow temperature and leaving water temperature
Water temperature state in pipeline is answered, makes detection mode of the present invention flexible and changeable.
Another technical scheme that the present invention solves above-mentioned technical problem is as follows：A kind of air-conditioning, including above-mentioned technical proposal institute
The air-conditioning duct freezing protection control device stated.
The beneficial effects of the invention are as follows：Air-conditioning including above-mentioned freezing protection control device, with simple and safe efficient mode, keeps away
Exempt from, because temperature is too low, to cause the water freezing in pipeline, especially the water freezing in heat exchanger, volumetric expansion, damage heat exchanger
Deng the service life of pipeline being extended, while extending the service life of whole machine.
The advantage of the additional aspect of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by present invention practice.
Brief description of the drawings
The air-conditioning duct antifreeze control method flow chart that Fig. 1 is provided for one embodiment of the invention；
The air-conditioning duct antifreeze control method flow chart that Fig. 2 is provided for another embodiment of the present invention；
The air-conditioning duct antifreeze control method flow chart that Fig. 3 is provided for another embodiment of the present invention；
The air-conditioning duct antifreeze control method flow chart that Fig. 4 is provided for another embodiment of the present invention；
The air-conditioning duct freezing protection control device block diagram that Fig. 5 is provided for one embodiment of the invention；
The air-conditioning duct freezing protection control device block diagram that Fig. 6 is provided for another embodiment of the present invention；
The air-conditioning duct freezing protection control device block diagram that Fig. 7 is provided for another embodiment of the present invention.
Specific embodiment
Principle of the invention and feature are described below in conjunction with accompanying drawing, example is served only for explaining the present invention, and
It is non-for limiting the scope of the present invention.
The air-conditioning duct antifreeze control method flow chart that Fig. 1 is provided for one embodiment of the invention.As shown in figure 1, a kind of empty
Pipeline antifreeze control method is adjusted, including：
110, operating states of the units is obtained, the temperature parameter of water temperature in reflection pipeline is obtained under compressor emergency shutdown state.
Specifically, in the embodiment, the temperature parameter includes any in environment temperature, inflow temperature and leaving water temperature
Kind.Such as detect environment temperature.Pipeline reclaimed water temperature state can be reacted by environment temperature, inflow temperature and leaving water temperature, makes this
Invention detection mode is flexible and changeable.
120, when temperature parameter is less than presets antifreeze temperature, open the electrical heating installed additional on water pump and pipeline on pipeline
Device.
Specifically, in the embodiment, when temperature parameter uses environment temperature, antifreeze temperature is preset when environment temperature is less than
When, open the electric heater installed additional in the water pump on pipeline and management.The span for presetting antifreeze temperature can be 0 DEG C -10
℃.In the embodiment, 3 DEG C can be taken.In the embodiment, electric heater can return device heater using heat.
If only realizing antifreezing effect by installing on water system pipeline special electric heater unit additional, can only realize
Local heating, is unfavorable for that water system is integrally antifreeze, and antifreezing effect is poor.
The air-conditioning duct antifreeze control method provided in above-described embodiment is realized in the case of unit not use, is passed through
Obtain reflection pipeline in water temperature temperature parameter, temperature parameter be less than preset antifreeze temperature when, open pipeline on water pump and
The electric heater installed additional on pipeline, with simple and safe efficient mode, it is to avoid because temperature is too low, causes the water knot in pipeline
Water freezing in ice, especially heat exchanger, volumetric expansion damages heat exchanger etc..
In above-described embodiment, by air-conditioning producer unification Uniting according to the characteristics of unit, the quality of parts is controlled,
Unified control method is formulated, it is to avoid for carrying out antifreeze treatment manually, it is ensured that the reliability of water dispenser air-conditioning；Rational control
Logic carries out antifreeze regulation, accurately and timely changes regulation logic and avoids wasting electricity, reaches the purpose of energy-conservation.
The air-conditioning duct antifreeze control method flow chart that Fig. 2 is provided for one embodiment of the invention.As shown in Fig. 2 a kind of empty
Pipeline antifreeze control method is adjusted, including：
210, operating states of the units is obtained, the temperature parameter of water temperature in reflection pipeline is obtained under compressor emergency shutdown state.
Specifically, in the embodiment, the temperature parameter includes any in environment temperature, inflow temperature and leaving water temperature
Kind.Such as detect environment temperature.Pipeline reclaimed water temperature state can be reacted by environment temperature, inflow temperature and leaving water temperature, makes this
Invention detection mode is flexible and changeable.
220, when temperature parameter is less than presets antifreeze temperature, open the electrical heating installed additional on water pump and pipeline on pipeline
Device.
Specifically, in the embodiment, when temperature parameter uses environment temperature, antifreeze temperature is preset when environment temperature is less than
When, open the electric heater installed additional in the water pump on pipeline and management.The span for presetting antifreeze temperature can be 0 DEG C -10
℃.In the embodiment, 3 DEG C can be taken.In the embodiment, electric heater can return device heater using heat.
230, real-time detection water flow switch whether normally closed, if water flow switch normally closed, keep water pump and electricity
Heater is opened；If the non-normally closed of water flow switch, control water pump is closed, and keeps electric heater to open.
The air-conditioning duct antifreeze control method provided in above-described embodiment, if water flow switch normally closed, shows pipeline
In have the water of flowing, keep water pump and electrical heating to open because opening water pump, the water flowing in pipeline, and the water for flowing is not allowed
Easily freeze, add the heat effect of electric heater, the water in pipeline is uniformly brought rapidly up, it is ensured that antifreezing effect；If current
The non-normally closed of switch, shows that current are abnormal, does not have circulating water in possible pipeline, and unlatching water pump can not make the water in pipeline
Flowing, thus closes off water pump, and the purpose for reaching defrosting is heated by electric heater, while energy saving, waits and detect current
During switch normally closed, water pump is then turned on.
The air-conditioning duct antifreeze control method flow chart that Fig. 3 is provided for one embodiment of the invention.As shown in figure 3, a kind of empty
Pipeline antifreeze control method is adjusted, including：
310, operating states of the units is obtained, the temperature parameter of water temperature in reflection pipeline is obtained under compressor emergency shutdown state.
Specifically, in the embodiment, the temperature parameter includes any in environment temperature, inflow temperature and leaving water temperature
Kind.Such as detect environment temperature.Pipeline reclaimed water temperature state can be reacted by environment temperature, inflow temperature and leaving water temperature, makes this
Invention detection mode is flexible and changeable.
320, when temperature parameter is less than presets antifreeze temperature, open the electrical heating installed additional on water pump and pipeline on pipeline
Device.
Specifically, in the embodiment, when temperature parameter uses environment temperature, antifreeze temperature is preset when environment temperature is less than
When, open the electric heater installed additional in the water pump on pipeline and management.The span for presetting antifreeze temperature can be 0 DEG C -10
℃.In the embodiment, 3 DEG C can be taken.In the embodiment, electric heater can return device heater using heat.
330, real-time detection water flow switch whether normally closed, if water flow switch normally closed, keep water pump and electricity
Heater is opened；If the non-normally closed of water flow switch, control water pump is closed, and keeps electric heater to open.
340, the water temperature in real-time detection pipeline, when the water temperature in pipeline is higher than the first preset temperature, control water pump is closed
Close, keep electric heater to open；Wherein, the first preset temperature is higher than to preset antifreeze temperature.In the embodiment, the first preset temperature
7 DEG C can be taken.In the embodiment, the water temperature in signal piping can detect water inlet by being arranged on the temperature sensor of water inlet
During mouthful temperature obtains in pipeline water temperature or detects that outlet temperature obtains pipeline by being arranged on the temperature sensor of delivery port
Water temperature.
The air-conditioning duct antifreeze control method provided in above-described embodiment, it is pre- that the water temperature in pipeline is detected reaches first
If then being switched off the pump during temperature, heated by electric heater and keep water temperature, realization be able to can both be ensured antifreeze again with save energy
Effect.
The air-conditioning duct antifreeze control method flow chart that Fig. 4 is provided for one embodiment of the invention.As shown in figure 4, a kind of empty
Pipeline antifreeze control method is adjusted, including：
410, operating states of the units is obtained, the temperature parameter of water temperature in reflection pipeline is obtained under compressor emergency shutdown state.
Specifically, in the embodiment, the temperature parameter includes any in environment temperature, inflow temperature and leaving water temperature
Kind.Such as detect environment temperature.Pipeline reclaimed water temperature state can be reacted by environment temperature, inflow temperature and leaving water temperature, makes this
Invention detection mode is flexible and changeable.
420, when temperature parameter is less than presets antifreeze temperature, open the electrical heating installed additional on water pump and pipeline on pipeline
Device.
Specifically, in the embodiment, when temperature parameter uses environment temperature, antifreeze temperature is preset when environment temperature is less than
When, open the electric heater installed additional in the water pump on pipeline and management.The span for presetting antifreeze temperature can be 0 DEG C -10
℃.In the embodiment, 5 DEG C can be taken.In the embodiment, electric heater can return device heater using heat.
430, real-time detection water flow switch whether normally closed, if water flow switch normally closed, keep water pump and electricity
Heater is opened；If the non-normally closed of water flow switch, control water pump is closed, and keeps electric heater to open.
440, the water temperature in real-time detection pipeline, when the water temperature in pipeline is higher than the first preset temperature, control water pump is closed
Close, keep electric heater to open；Wherein, the first preset temperature is higher than to preset antifreeze temperature.In the embodiment, the first preset temperature
7 DEG C can be taken.
450, when the water temperature in pipeline is higher than the second preset temperature, control electric heater is closed, wherein the second default temperature
Degree is higher than the first preset temperature.In the embodiment, the second preset temperature can take 10 DEG C.
In the embodiment, the water temperature in signal piping can detect water inlet by being arranged on the temperature sensor of water inlet
Temperature obtain pipeline in water temperature or by be arranged on the temperature sensor of delivery port detect outlet temperature obtain pipeline in
Water temperature.
The air-conditioning duct antifreeze control method provided in above-described embodiment, it is pre- that the water temperature in pipeline is detected reaches second
If during temperature, the possibility of now pipeline icing frost is minimum, then can close electric heater unit, ensures while save energy
Antifreezing effect.
It should be noted that the temperature range mentioned in above-described embodiment is not limited to the temperature value in citing, according to reality
Border service condition is appropriately adjusted and belongs to protection scope of the present invention.
It should be understood that in various embodiments of the present invention, the size of the sequence number of above-mentioned each process is not meant to execution sequence
Successively, the execution sequence of each process should be with its function and internal logic determination, the implementation process without tackling the embodiment of the present invention
Constitute any restriction.
The air-conditioning duct freezing protection control device block diagram that Fig. 5 is provided for one embodiment of the invention.As shown in figure 5, a kind of air-conditioning
Pipeline freezing protection control device, including：
Set state detection unit, for obtaining operating states of the units, triggers temperature parameter prison under compressor emergency shutdown state
Survey unit.
Temperature parameter detection unit, the temperature for obtaining water temperature in reflection pipeline according to the triggering of set state detection unit
Degree parameter.
Specifically, in the embodiment, the temperature parameter includes any in environment temperature, inflow temperature and leaving water temperature
Kind.Such as detect environment temperature.Pipeline reclaimed water temperature state can be reacted by environment temperature, inflow temperature and leaving water temperature, makes this
Invention detection mode is flexible and changeable.
Control unit, for when temperature parameter is less than and presets antifreeze temperature, opening and adding on water pump and pipeline on pipeline
The electric heater of dress.
Specifically, in the embodiment, when temperature parameter uses environment temperature, antifreeze temperature is preset when environment temperature is less than
When, open the electric heater installed additional in the water pump on pipeline and management.The span for presetting antifreeze temperature can be 0 DEG C -10
℃.In the embodiment, 3 DEG C can be taken.In the embodiment, electric heater can return device heater using heat.
The air-conditioning duct freezing protection control device provided in above-described embodiment is realized in the case of unit not use, is passed through
Obtain reflection pipeline in water temperature temperature parameter, temperature parameter be less than preset antifreeze temperature when, open pipeline on water pump and
The electric heater installed additional on pipeline, with simple and safe efficient mode, it is to avoid because temperature is too low, causes the water knot in pipeline
Water freezing in ice, especially heat exchanger, volumetric expansion damages heat exchanger etc..
Alternatively, as one embodiment of the present of invention, as shown in fig. 6, also including water on the basis of above-described embodiment
Stream switch detection unit, for real-time detection water flow switch whether normally closed；Control unit, for just normally closed in water flow switch
During conjunction, water pump and electric heater is kept to open；In the non-normally closed of water flow switch, control water pump is closed, and keeps electric heater
Open.
In the embodiment, if water flow switch normally closed, show there is the water of flowing in pipeline, keep water pump and electrical heating
Open, because opening water pump, the water flowing in pipeline, and the water for flowing is not easy to freeze, and adds the heat effect of electric heater,
The water in pipeline is set uniformly to be brought rapidly up, it is ensured that antifreezing effect；If the non-normally closed of water flow switch, shows that current are abnormal,
There is no circulating water in possible pipeline, opening water pump can not flow the water in pipeline, water pump be thus closed off, by electric heater
Heating reaches the purpose of defrosting, while energy saving, when wait detects water flow switch normally closed, is then turned on water pump.
Alternatively, as one embodiment of the present of invention, as shown in fig. 7, also including water on the basis of above-described embodiment
Warm detection unit, for the water temperature in real-time detection pipeline；Control unit, for when the water temperature in pipeline is higher than the first default temperature
When spending, control water pump is closed, and keeps electric heater to open；Wherein, the first preset temperature is higher than to preset antifreeze temperature.The embodiment
In, the water temperature in signal piping can detect that water inlet temperature obtains pipeline reclaimed water by being arranged on the temperature sensor of water inlet
Temperature or the water temperature by being arranged in the temperature sensor of delivery port detection outlet temperature acquisition pipeline.
In the embodiment, then switched off the pump when the water temperature in detecting pipeline reaches the first preset temperature, added by electricity
Hot device heating keeps water temperature, and realization both can ensure antifreezing effect again with save energy.In the embodiment, the first default temperature
Degree can take 7 DEG C.
Alternatively, as one embodiment of the invention, the water temperature in water temperature detection unit detects pipeline is higher than second
During preset temperature, control unit control electric heater is closed, wherein the second preset temperature is higher than the first preset temperature.The embodiment
In, the second preset temperature can take 10 DEG C.In the embodiment, water temperature in signal piping can be by being arranged on the temperature of water inlet
Degree sensor detection water inlet temperature obtains water temperature or the temperature sensor detection water outlet by being arranged on delivery port in pipeline
Mouth temperature obtains the water temperature in pipeline.
In the embodiment, when the water temperature in detecting pipeline reaches the second preset temperature, now pipeline freezes what is freezed
Possibility is minimum, then can close electric heater unit, and antifreezing effect is ensured while save energy.
It should be understood that in embodiments of the present invention, air-conditioning duct freezing protection control device according to embodiments of the present invention can be corresponded to
In the executive agent of air-conditioning duct antifreeze control method according to embodiments of the present invention, and the air-conditioning duct freezing protection control device
In unit above and other operation and/or function respectively in order to realize the respective streams of each method in Fig. 1 to Fig. 4
Journey, for sake of simplicity, will not be repeated here.
The embodiment of the present invention also provides a kind of air-conditioning, including the antifreeze control dress of air-conditioning duct described in any of the above-described embodiment
Put.
The air-conditioning of above-mentioned technical proposal, including above-mentioned freezing protection control device according to embodiments of the present invention, uses simple and safe height
The mode of effect, it is to avoid because temperature is too low, causes the water freezing in pipeline, especially the water freezing in heat exchanger, volumetric expansion,
Heat exchanger etc. is damaged, the service life of pipeline is extended, while extending the service life of whole machine.
Those of ordinary skill in the art are it is to be appreciated that the list of each example described with reference to the embodiments described herein
Unit and algorithm steps, can be realized, with electronic hardware, computer software or the combination of the two in order to clearly demonstrate hardware
With the interchangeability of software, the composition and step of each example are generally described according to function in the above description.This
A little functions are performed with hardware or software mode actually, depending on the application-specific and design constraint of technical scheme.Specially
Industry technical staff can realize described function to each specific application using distinct methods, but this realization is not
It is considered as beyond the scope of this invention.
It is apparent to those skilled in the art that, for convenience of description and succinctly, foregoing description is
The specific work process of system, device and unit, may be referred to the corresponding process in preceding method embodiment, will not be repeated here.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method, can be with
Realize by another way.For example, device embodiment described above is only schematical, for example, the division of unit,
It is only a kind of division of logic function, there can be other dividing mode when actually realizing, such as multiple units or component can be with
With reference to or be desirably integrated into another system, or some features can be ignored, or not perform.In addition, shown or discussed
Coupling each other or direct-coupling or communication connection can be by the INDIRECT COUPLING or logical of some interfaces, device or unit
Letter connection, or electricity, machinery or other forms connections.
The unit illustrated as separating component can be or may not be physically separate, be shown as unit
Part can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple networks
On unit.Some or all of unit therein can be according to the actual needs selected to realize the mesh of embodiment of the present invention scheme
's.
In addition, during each functional unit in each embodiment of the invention can be integrated in a processing unit, it is also possible to
It is that unit is individually physically present, or two or more units are integrated in a unit.It is above-mentioned integrated
Unit can both be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.
If integrated unit, can to realize in the form of SFU software functional unit and as independent production marketing or when using
To store in a computer read/write memory medium.Based on such understanding, technical scheme substantially or
The part contributed to prior art is said, or all or part of the technical scheme can be embodied in the form of software product
Out, computer software product storage is in a storage medium, including some instructions are used to so that a computer equipment
(can be personal computer, server, or network equipment etc.) performs all or part of each embodiment method of the invention
Step.And foregoing storage medium includes：It is USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), random
Access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with Jie of store program codes
Matter.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all it is of the invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (11)
1. a kind of air-conditioning duct antifreeze control method, it is characterised in that comprise the following steps：
Operating states of the units is obtained, the temperature parameter of water temperature in reflection pipeline is obtained under compressor emergency shutdown state；
When temperature parameter is less than presets antifreeze temperature, the electric heater installed additional on water pump and pipeline on pipeline is opened.
2. air-conditioning duct antifreeze control method according to claim 1, it is characterised in that also opened including real-time detection current
Close whether normally closed, if water flow switch normally closed, keep water pump and electric heater to open；If water flow switch is not just
Normally closed conjunction, then control water pump to close, and keeps electric heater to open.
3. air-conditioning duct antifreeze control method according to claim 2, it is characterised in that also including in real-time detection pipeline
Water temperature, when the water temperature in pipeline be higher than the first preset temperature when, control water pump close, keep electric heater open；Wherein,
One preset temperature is higher than to preset antifreeze temperature.
4. air-conditioning duct antifreeze control method according to claim 3, it is characterised in that when the water temperature in pipeline is higher than the
During two preset temperatures, control electric heater is closed, wherein the second preset temperature is higher than the first preset temperature.
5. the air-conditioning duct antifreeze control method according to any one of Claims 1-4, it is characterised in that the temperature ginseng
Number includes any one in environment temperature, inflow temperature and leaving water temperature.
6. a kind of air-conditioning duct freezing protection control device, it is characterised in that including：
Set state detection unit, for obtaining operating states of the units, triggers temperature parameter monitoring single under compressor emergency shutdown state
Unit；
Temperature parameter detection unit, the temperature ginseng for obtaining water temperature in reflection pipeline according to the triggering of set state detection unit
Number；
Control unit, for when temperature parameter is less than and presets antifreeze temperature, opening what is installed additional on water pump and pipeline on pipeline
Electric heater.
7. air-conditioning duct freezing protection control device according to claim 6, it is characterised in that also detect single including water flow switch
Unit, for real-time detection water flow switch whether normally closed；
Control unit, in water flow switch normally closed, keeping water pump and electric heater to open；It is abnormal in water flow switch
During closure, control water pump is closed, and keeps electric heater to open.
8. air-conditioning duct freezing protection control device according to claim 7, it is characterised in that also including water temperature detection unit,
For the water temperature in real-time detection pipeline；
Control unit, for when the water temperature in pipeline is higher than the first preset temperature, control water pump to be closed, keeps electric heater to open
Open；Wherein, the first preset temperature is higher than to preset antifreeze temperature.
9. air-conditioning duct freezing protection control device according to claim 8, it is characterised in that when water temperature detection unit is detected
When water temperature in pipeline is higher than the second preset temperature, control unit control electric heater is closed, wherein the second preset temperature is higher than
First preset temperature.
10. the air-conditioning duct freezing protection control device according to any one of claim 6 to 9, it is characterised in that the temperature ginseng
Number includes any one in environment temperature, inflow temperature and leaving water temperature.
11. a kind of air-conditionings, it is characterised in that including the air-conditioning duct freezing protection control device described in any one of claim 6 to 10.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611076668.XA CN106765889A (en) | 2016-11-29 | 2016-11-29 | Air-conditioning and its pipeline antifreeze control method and device |
| PCT/CN2017/094319 WO2018099108A1 (en) | 2016-11-29 | 2017-07-25 | Air conditioner and pipeline antifreeze control method and apparatus therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611076668.XA CN106765889A (en) | 2016-11-29 | 2016-11-29 | Air-conditioning and its pipeline antifreeze control method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106765889A true CN106765889A (en) | 2017-05-31 |
Family
ID=58897906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611076668.XA Pending CN106765889A (en) | 2016-11-29 | 2016-11-29 | Air-conditioning and its pipeline antifreeze control method and device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106765889A (en) |
| WO (1) | WO2018099108A1 (en) |
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| CN107401808A (en) * | 2017-07-14 | 2017-11-28 | 珠海格力电器股份有限公司 | Air-conditioner set anti-freeze protection control method, device and air-conditioner set |
| CN107726633A (en) * | 2017-10-12 | 2018-02-23 | 广东美的暖通设备有限公司 | Heat pump water-heating machine and its anti-freeze control method and device |
| CN108006926A (en) * | 2017-12-07 | 2018-05-08 | 广东美的暖通设备有限公司 | Air conditioner and its control method |
| CN108105911A (en) * | 2017-12-07 | 2018-06-01 | 广东美的暖通设备有限公司 | Air conditioner and its control method |
| WO2018099108A1 (en) * | 2016-11-29 | 2018-06-07 | 重庆美的通用制冷设备有限公司 | Air conditioner and pipeline antifreeze control method and apparatus therefor |
| CN108444074A (en) * | 2018-03-05 | 2018-08-24 | 重庆美的通用制冷设备有限公司 | The method for heating and controlling of heat regenerator, apparatus and system in air-conditioning |
| CN109237726A (en) * | 2018-08-27 | 2019-01-18 | 珠海格力电器股份有限公司 | A kind of antifreeze protector of pipeline and air-conditioner set using the antifreeze protector |
| CN109959119A (en) * | 2019-03-31 | 2019-07-02 | 广东美的制冷设备有限公司 | Antifreeze control method, freezing protection control device, air conditioner and storage medium |
| CN112649584A (en) * | 2020-12-18 | 2021-04-13 | 联想(北京)有限公司 | Liquid state detection method and device |
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| CN113899052A (en) * | 2020-06-22 | 2022-01-07 | 广东美的制冷设备有限公司 | Anti-freezing control method, operation control device and multi-split system |
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| WO2018099108A1 (en) | 2018-06-07 |
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