CN109539622A - A kind of net for air-source heat pump units and its defrosting control method - Google Patents
A kind of net for air-source heat pump units and its defrosting control method Download PDFInfo
- Publication number
- CN109539622A CN109539622A CN201811453043.XA CN201811453043A CN109539622A CN 109539622 A CN109539622 A CN 109539622A CN 201811453043 A CN201811453043 A CN 201811453043A CN 109539622 A CN109539622 A CN 109539622A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- temperature
- defrosting
- environment
- compressor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- 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
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
-
- 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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- 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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
-
- 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
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
-
- 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
- F24F2110/20—Humidity
- F24F2110/22—Humidity of the outside air
Abstract
The invention discloses a kind of net for air-source heat pump units and its defrosting control methods, wherein unit includes compressor, gas-liquid separator, high-efficiency tank heat exchanger, finned heat exchanger, outdoor temperature humidity sampling module and four-way reversing valve, by four-way reversing valve piping connection, finned heat exchanger passes through four-way reversing valve piping connection with high-efficiency tank heat exchanger for compressor and gas-liquid separator；The defrosting method of the unit, which is comprised the step of, is divided into outdoor environment in different environment sections from relative humidity according to environment temperature, further according to the temperature and humidity of current environment, determine running environment region, then it carries out frosting detection respectively according to each region control logic and defrosting is handled, the present invention can frosting situation of the accurate detection to unit outdoor heat exchanger under different environmental conditions, then different processing is carried out according to practical frosting situation by control system, reaching has white defrosting, frostless heating；Thick frost, Bao Shuan distinguish the effect of defrost, fully ensure that the performance of heating operation ability.
Description
Technical field
The present invention relates to technical field of heat exchange, specially a kind of net for air-source heat pump units and its defrosting control method.
Background technique
Cold (heat) the water dispenser group of air source heat pump is to carry out heat exchange with refrigerant, then using outdoor air as heat source
Refrigerant carries out cold (heat) water of heat exchange generation with aqueous medium again and is transported to progress temperature adjusting in user room under that action of the water pump.
What is circulated in user terminal is water, and what is directly controlled is water temperature, adjusts class relative to air-conditioning, air-heater and other temperature and produces
Product, constant temperature ability, comfort, in terms of have incomparable advantage.Because of the presence of these advantages, air-source heat
Cold (heat) water dispenser group is pumped to have a wide range of applications on the market, especially in recent years with the promotion of national energy conservation and emission reduction policy,
The coal of the northern area of China heating equipment changes electricity and carries out like a raging fire, and air source heat pump industry is grown rapidly.
For net for air-source heat pump units, how just finned heat exchanger frosting when heating operation is inevitable problem,
How really detection heat exchanger frosting will directly influences heating effect in the progress defrost movement of most suitable time.Currently, city
The defrost of face overwhelming majority net for air-source heat pump units is handled, and is by changing outdoor environment temperature and outdoor heat exchanger fin
Hot device coil temperature is sampled, and the kelvin rating and finned heat exchanger for judging finned heat exchanger coil temperature are then passed through
Whether coil temperature reaches setting in the slippage or environment temperature of certain time and the difference of finned heat exchanger coil temperature
Value come be made to determine whether defrost handle.The drawbacks of this method is exactly to be easy to cause erroneous judgement, when environment temperature is lower than -15 DEG C
When, relative air humidity is actually often very low, although the low relative humidity of temperature is also low at this time, heat exchanger is basically will not produce
Frost, and according to the existing heat pump unit in market, just it is very easy to the case where generating frostless defrost.Defrost process is in fact
It is exactly the process of refrigerastion under an outdoor fan stops, when defrost is run, finned heat exchanger side needs defrosting of absorbing heat, and water side is then
Exothermic process, water temperature can sharply decline.More serious, in frostless defrosting, fin heat exchange temperature is anxious after compressor operation
Play rises, and system pressure increases with it, and can reach system high pressure protection value quickly and generate stoppage protection, seriously affect heating heating
Effect increases energy loss.
At present cold (heat) the water dispenser group of air source heat pump and air-conditioner outdoor unit all there was only temperature sampling and without relative humidity
Detection function can not pick up the relative humidity for knowing air.In defrost design, detection outdoor environment temperature and heat exchanger can only be passed through
Coil temperature carries out the condition judgement of defrosting entrance, carries out defrosting processing according to a kind of environmental characteristic.In low temperature and low humidity situation
Under, it can frequently occur that heat exchanger is frostless the case where unit operation defrost, water temperature drop is not only caused to generate temperature fluctuation,
It consumes a large amount of energy consumptions and improves water temperature temperature to before defrosting again, the effectively heating time is greatly decreased, and more serious can also generate is
System high pressure and shut down, or even cooling cycle system is caused to damage.Some extends in design in order to avoid there is such case
In the defrost period, temperature is exited in reduction, but is easy to produce the halfway situation of defrost, several defrosts again in high humidity low temperature environment region
After period, heat exchanger generates icing phenomenon, the feelings that special low temperature rain and snow weather, easily generation heat exchanger freeze even chassis icing
Condition seriously affects the normal use of unit.
Summary of the invention
The problem of for background technique, the present invention provides a kind of net for air-source heat pump units and its defrosting control sides
Method.
To achieve the above object, the invention provides the following technical scheme: a kind of net for air-source heat pump units, including compressor,
Gas-liquid separator, high-efficiency tank heat exchanger, finned heat exchanger, outdoor temperature humidity sampling module and four-way reversing valve, the compression
Machine and the gas-liquid separator by the four-way reversing valve piping connection and form closed circuit, the finned heat exchanger and institute
High-efficiency tank heat exchanger is stated by the four-way reversing valve piping connection and forms closed circuit, is provided on the finned heat exchanger
Temperature sensor is provided with electric expansion valve on the pipeline connected between the high-efficiency tank heat exchanger and the finned heat exchanger,
Pressure sensor is provided on the pipeline connected between the compressor and the four-way reversing valve.
The present invention also provides a kind of defrosting methods of net for air-source heat pump units, comprising the following steps:
Outdoor environment is divided into high frosting area, easy frosting area, Bao Shuanqu and frostless area according to environment temperature and relative humidity
Four environment sections are determined current in the relative temperature and humidity for being sampled current environment using outdoor temperature humidity sampling module
Running environment region, then carries out frosting detection respectively according to each region control logic and defrosting is handled.
As a preferred technical solution of the present invention, if current environmental temperature and relative humidity are in high frosting area,
Whether current compressor accumulation operation is judged >=preset defrost period by control system；Heat transfer temperature difference (environment temperature Ta- fin
Heat exchanger coils temperature Tc) whether >=6 DEG C；Finned heat exchanger coil temperature Tc real value whether≤- 4 DEG C, if conditions above is complete
Portion meets, then control system is judged as that frosting has reached certain thickness, into Defrost operation.
As a preferred technical solution of the present invention, if current environmental temperature and relative humidity are in easy frosting area, by
Control system judge current compressor accumulation operation whether >=it is the defrost period+10 minutes preset；Heat transfer temperature difference (environment temperature
Ta- finned heat exchanger coil temperature Tc) whether >=5 DEG C；Finned heat exchanger coil temperature Tc real value whether≤- 4 DEG C, if more than
Condition all meets, then control system is judged as that frosting has reached certain thickness, into Defrost operation.
As a preferred technical solution of the present invention, if current environmental temperature and relative humidity are in Bao Shuanqu, by controlling
System processed judge current compressor accumulation operation whether >=it is the defrost period+20 minutes preset；Heat transfer temperature difference (environment temperature Ta-
Finned heat exchanger coil temperature Tc) whether >=4 DEG C；Finned heat exchanger coil temperature Tc real value whether≤- 4 DEG C, if the above item
Part all meets, then control system is judged as that frosting has reached certain thickness, into Defrost operation.
As a preferred technical solution of the present invention, if current environmental temperature and relative humidity are in frostless area, ring
10 DEG C of border temperature Ta >, system is without defrosting；If environment temperature Ta≤10 DEG C, carry out within compressor continuous operation 120 minutes
Primary defrosting.
As a preferred technical solution of the present invention, after defrosting condition, which meets, enters Defrost operation, compressor and wing
The exogenous wind organ of piece heat exchanger closes, four-way valve commutation, electric expansion valve to defrosting setting aperture, then compressor start run into
Row defrosting, temperature sensor detects finned heat exchanger coil temperature and exits temperature with setting and is compared during defrosting, if
Temperature is not up to exited, defrosting is continued to run, while detecting whether high-pressure is more than setting value, is removed if being no more than to continue to run
Frost, if pressure is more than setting value, control system opens the operation of blower low speed so as to pressure decline, and other components continue to run defrosting
The normal heating operation of defrosting recovery is just exited until the coil temperature of finned heat exchanger is greater than disengaging value.
Compared with prior art, the beneficial effects of the present invention are: the present invention can accurate detection under different environmental conditions
To the frosting situation of unit outdoor heat exchanger, different processing is then carried out according to practical frosting situation by control system, is reached
To having white defrosting, frostless heating；Thick frost, Bao Shuan distinguish the effect of defrost, fully ensure that the performance of heating operation ability；In addition originally
Invention is monitored pressure during Defrost operation, when pressure is more than setting value, opens removing for outdoor fan low speed operation
White mode prevents system pressure excessively high and generates shutdown, effectively prevents what defrost high pressure generated unit cooling cycle system
Damage plays positive effect to the reliability for improving product.
Detailed description of the invention
Fig. 1 is a kind of net for air-source heat pump units overall structure diagram provided by the invention；
Fig. 2 is unit frosting block plan in a kind of defrosting method of net for air-source heat pump units of the present invention；
Fig. 3 is unit defrosting control logic figure in a kind of defrosting method of net for air-source heat pump units of the present invention；
Fig. 4 is unit defrosting high voltage protective logic control chart in a kind of defrosting method of net for air-source heat pump units of the present invention；
In figure: 1- compressor；2- gas-liquid separator；3- high-efficiency tank heat exchanger；4- finned heat exchanger；5- outdoor temperature humidity is adopted
Egf block；6- four-way reversing valve；7- temperature sensor；8- electric expansion valve；9- pressure sensor.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment:
Referring to Fig. 1, the present invention provides a kind of net for air-source heat pump units, including compressor 1, gas-liquid separator 2, high-efficiency tank
Heat exchanger 3, finned heat exchanger 4, outdoor temperature humidity sampling module 5 and four-way reversing valve 6, the compressor 1 and the gas-liquid
Separator 2 is by 6 piping connection of four-way reversing valve and forms closed circuit, the finned heat exchanger 4 and the high-efficiency tank
Heat exchanger 3 is by 6 piping connection of four-way reversing valve and forms closed circuit, is provided with temperature on the finned heat exchanger 4
Sensor 7 is provided with electric expansion valve 8 on the pipeline connected between the high-efficiency tank heat exchanger 3 and the finned heat exchanger 4,
Pressure sensor 9 is provided on the pipeline connected between the compressor 1 and the four-way reversing valve 6.
When normal heating, high pressure gaseous refrigerant is discharged from 1 exhaust outlet of compressor, enters via four-way reversing valve 6 high
Effect tank heat exchanger 3 carries out condensation heat release, heats to water system, and refrigerant becomes high temperature liquid refrigerant, liquid after heat release
State refrigerant is evaporated in finned heat exchanger 4 and becomes via finned heat exchanger 4 is entered after 8 reducing pressure by regulating flow of electric expansion valve
Gaseous refrigerant returns to compressor 1 and completes a circulation.Refrigerant needs to absorb heat when finned heat exchanger 4 evaporates, fin heat exchange
Device 4 exchanges heat under its fan action with air, and fin temperature can drop to frost point hereinafter, if present air humidity is high,
Can be in fin surface frosting, frost layer can be increasingly severe with the influence of the increase heat exchanging device heat transfer effect of thickness, needs
Operational process carries out defrosting processing, and direction as shown by the arrows in Figure 1 is the refrigerant flow direction of Defrost operation, it is clear that with normal heating
Shi Liuxiang is on the contrary, the high temperature and high pressure gas that compressor 1 is discharged first enters finned heat exchanger 4 via the commutation of four-way reversing valve 6, in wing
Piece heat exchanger 4 is inner to carry out condensation and becomes liquid refrigerant, and discharged heat is to dissolve the frosting on fin.
The present invention also provides a kind of defrosting methods of net for air-source heat pump units, comprising the following steps:
As shown in Fig. 2, outdoor environment is divided into high frosting area, easy frosting area, Bao Shuan according to environment temperature and relative humidity
Area and four, frostless area environment section, the relative temperature that current environment is sampled using outdoor temperature humidity sampling module 5 with it is wet
Degree, determines current operating environment region, then carries out respectively according to each region control logic at frosting detection and defrosting
Reason.In heating operation, system tends to be steady after five minutes for the starting of compressor 1 operation, starts to detect fin by temperature sensor 7
The coil temperature Tc of heat exchanger 4 just has frosting possible, starts to carry out defrosting interval judgement, control system root when Tc≤0 DEG C
The current environmental temperature and relative humidity detected according to outdoor temperature humidity sampling module 5 determines current environment section.
As shown in figure 3, if judging current pressure by control system when current environmental temperature and relative humidity are in high frosting area
The accumulation of contracting machine 1 operation whether >=preset defrost period；Heat transfer temperature difference (environment temperature Ta- finned heat exchanger coil temperature Tc) is
It is no >=6 DEG C；Finned heat exchanger coil temperature Tc real value whether≤- 4 DEG C, if conditions above all meets, control system sentences
Break and have reached certain thickness for frosting, into Defrost operation.
If current environmental temperature and relative humidity are in easy frosting area, the accumulation fortune of current compressor 1 is judged by control system
Row whether >=it is the defrost period+10 minutes preset；Heat transfer temperature difference (environment temperature Ta- finned heat exchanger coil temperature Tc) whether >=
5℃；Finned heat exchanger coil temperature Tc real value whether≤- 4 DEG C, if conditions above all meets, control system is judged as
Frosting has reached certain thickness, into Defrost operation.
If current environmental temperature and relative humidity are in Bao Shuanqu, the accumulation operation of current compressor 1 is judged by control system
Whether >=the defrost period+20 minutes preset；Heat transfer temperature difference (environment temperature Ta- finned heat exchanger coil temperature Tc) whether >=4
℃；Finned heat exchanger coil temperature Tc real value whether≤- 4 DEG C, if conditions above all meets, control system is judged as knot
Frost has reached certain thickness, into Defrost operation.
If current environmental temperature and relative humidity are in frostless area, 10 DEG C of environment temperature Ta >, system is without defrosting；
If environment temperature Ta≤10 DEG C, once defrosted within compressor continuous operation 120 minutes.
As shown in figure 4, after defrosting condition meets and enters Defrost operation, the exogenous wind organ of compressor 1 and finned heat exchanger 4
It closes, the commutation of four-way reversing valve 6, to defrosting setting aperture, then the starting of compressor 1 is run defrosts electric expansion valve 8, defrosts
Temperature sensor 7 detects finned heat exchanger coil temperature and exits temperature with setting and is compared in the process, if not up to exiting
Temperature continues to run defrosting, while detecting whether high-pressure is more than setting value, defrosting is continued to run if being no more than, if pressure
More than setting value, control system opens the operation of blower low speed so as to pressure decline, and other components continue to run defrosting until fin
The coil temperature of heat exchanger 4 is greater than disengaging value and just exits the normal heating operation of defrosting recovery, by the step in Defrost operation
When issuable system pressure is excessively high carries out protection control, effectively eliminate in the mistake defrost and defrost operation of unit heating operation
Impacting with high pressure, improve effective heating capacity of heating operation.
Based on above-mentioned, present invention has the advantage that: the present invention can under different environmental conditions accurate detection to machine
The frosting situation of group outdoor heat exchanger, then carries out different processing according to practical frosting situation by control system, reaching has
Frost defrosting, frostless heating；Thick frost, Bao Shuan distinguish the effect of defrost, fully ensure that the performance of heating operation ability；In addition of the invention
During Defrost operation, pressure is monitored, when pressure is more than setting value, opens the defrosting mould of outdoor fan low speed operation
Formula prevents system pressure excessively high and generates shutdown, effectively prevents the damage that defrost high pressure generates unit cooling cycle system,
Positive effect is played to the reliability for improving product.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (7)
1. a kind of net for air-source heat pump units, it is characterised in that: changed including compressor, gas-liquid separator, high-efficiency tank heat exchanger, fin
Hot device, outdoor temperature humidity sampling module and four-way reversing valve, the compressor and the gas-liquid separator pass through the four-way
Reversal valve piping connection simultaneously forms closed circuit, and the finned heat exchanger is commutated with the high-efficiency tank heat exchanger by the four-way
Valve piping connection simultaneously forms closed circuit, is provided with temperature sensor on the finned heat exchanger, the high-efficiency tank heat exchanger with
Electric expansion valve is provided on the pipeline connected between the finned heat exchanger, between the compressor and the four-way reversing valve
Pressure sensor is provided on the pipeline of connection.
2. a kind of defrosting method of net for air-source heat pump units, it is characterised in that the following steps are included:
Outdoor environment is divided into high frosting area, easy frosting area, Bao Shuanqu and four, frostless area according to environment temperature and relative humidity
Environment section determines current operation in the relative temperature and humidity for sampling current environment using outdoor temperature humidity sampling module
Environment region, then carries out frosting detection respectively according to each region control logic and defrosting is handled.
3. a kind of defrosting method of net for air-source heat pump units according to claim 2, it is characterised in that: if current environment temperature
When degree be in high frosting area with relative humidity, by control system judge current compressor accumulation run whether >=preset defrost is all
Phase；Heat transfer temperature difference (environment temperature Ta- finned heat exchanger coil temperature Tc) whether >=6 DEG C；Finned heat exchanger coil temperature Tc is real
Duration whether≤- 4 DEG C, if conditions above all meet, control system is judged as that frosting has reached certain thickness, into defrosting
Operation.
4. a kind of defrosting method of net for air-source heat pump units according to claim 2, it is characterised in that: if current environment temperature
Degree be in easy frosting area with relative humidity, by control system judge current compressor accumulate run whether >=preset defrost period
+ 10 minutes；Heat transfer temperature difference (environment temperature Ta- finned heat exchanger coil temperature Tc) whether >=5 DEG C；Finned heat exchanger coil temperature
Tc real value whether≤- 4 DEG C, if conditions above all meets, control system is judged as that frosting has reached certain thickness, enters
Defrost operation.
5. a kind of defrosting method of net for air-source heat pump units according to claim 2, it is characterised in that: if current environment temperature
Degree be in Bao Shuanqu with relative humidity, by control system judge current compressor accumulate run whether >=preset defrost period+
20 minutes；Heat transfer temperature difference (environment temperature Ta- finned heat exchanger coil temperature Tc) whether >=4 DEG C；Finned heat exchanger coil temperature
Tc real value whether≤- 4 DEG C, if conditions above all meets, control system is judged as that frosting has reached certain thickness, enters
Defrost operation.
6. a kind of defrosting method of net for air-source heat pump units according to claim 2, it is characterised in that: if current environment temperature
Degree is in frostless area with relative humidity, then 10 DEG C of environment temperature Ta >, and system is without defrosting；If environment temperature Ta≤10 DEG C,
Then once defrosted within compressor continuous operation 120 minutes.
7. a kind of defrosting method of net for air-source heat pump units according to claim 2, it is characterised in that: when defrosting condition is full
After foot enters Defrost operation, the exogenous wind organ of compressor and finned heat exchanger is closed, four-way valve commutates, and electric expansion valve is set to defrosting
Determine aperture, then compressor start operation defrosts, and temperature sensor detects finned heat exchanger coil temperature during defrosting
And exit temperature with setting and be compared, if not up to exiting temperature, defrosting is continued to run, while detecting whether high-pressure surpasses
Setting value is crossed, continues to run defrosting if being no more than, if pressure is more than setting value, control system opens the operation of blower low speed to press
Power decline, other components continue to run defrosting and are just exiting defrosting recovery just until the coil temperature of finned heat exchanger is greater than disengaging value
Normal heating operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811453043.XA CN109539622A (en) | 2018-11-30 | 2018-11-30 | A kind of net for air-source heat pump units and its defrosting control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811453043.XA CN109539622A (en) | 2018-11-30 | 2018-11-30 | A kind of net for air-source heat pump units and its defrosting control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109539622A true CN109539622A (en) | 2019-03-29 |
Family
ID=65851768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811453043.XA Pending CN109539622A (en) | 2018-11-30 | 2018-11-30 | A kind of net for air-source heat pump units and its defrosting control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109539622A (en) |
Cited By (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109579384A (en) * | 2018-11-23 | 2019-04-05 | 广东日出东方空气能有限公司 | The Defrost method of air friction drag |
| CN109974204A (en) * | 2019-04-01 | 2019-07-05 | 珠海格力电器股份有限公司 | The control method and device of air-conditioning with amendment defrost condition |
| CN110285617A (en) * | 2019-06-26 | 2019-09-27 | 贵州大学 | A kind of air source heat pump defrosting control method |
| CN110425686A (en) * | 2019-08-09 | 2019-11-08 | 珠海格力电器股份有限公司 | Air cooling module unit defrosting control method, computer installation and computer readable storage medium |
| CN110553417A (en) * | 2019-08-13 | 2019-12-10 | 珠海格力电器股份有限公司 | air conditioning system and control method thereof |
| CN110715482A (en) * | 2019-08-30 | 2020-01-21 | 浙江正泰能效科技有限公司 | Defrosting method of air source heat pump unit |
| CN110726271A (en) * | 2019-11-11 | 2020-01-24 | 江苏天舒电器有限公司 | Efficient chassis icing-resistant finned heat exchanger and working method thereof |
| CN111023451A (en) * | 2019-11-29 | 2020-04-17 | 宁波奥克斯电气股份有限公司 | Control method and device for ultrasonic defrosting, storable medium and air conditioner |
| CN111156660A (en) * | 2020-01-02 | 2020-05-15 | 珠海格力电器股份有限公司 | Defrosting control method for heat pump water heater system, storage medium and air conditioner |
| CN111174371A (en) * | 2019-12-31 | 2020-05-19 | 珠海格力电器股份有限公司 | Control method and device of air conditioner, storage medium and air conditioner |
| CN111365825A (en) * | 2020-03-19 | 2020-07-03 | 宁波奥克斯电气股份有限公司 | Air conditioner defrosting control method and device and air conditioner |
| CN111692707A (en) * | 2020-06-08 | 2020-09-22 | 宁波奥克斯电气股份有限公司 | Defrosting control method and device for air conditioner external unit, storage medium and air conditioner |
| CN111928425A (en) * | 2020-07-16 | 2020-11-13 | 广东纽恩泰新能源科技发展有限公司 | Defrosting determination method for air source heat pump unit |
| CN112032913A (en) * | 2020-08-20 | 2020-12-04 | 广东纽恩泰新能源科技发展有限公司 | Method for detecting frosting state of heat exchanger by temperature and humidity sensor |
| CN112484354A (en) * | 2020-11-02 | 2021-03-12 | 珠海格力电器股份有限公司 | Defrosting control method and device for air cooler, controller and air cooler |
| CN112665118A (en) * | 2020-12-22 | 2021-04-16 | 珠海格力电器股份有限公司 | Defrosting control method and device of heat pump unit, storage medium and heat pump unit |
| CN112781286A (en) * | 2020-04-17 | 2021-05-11 | 青岛海尔新能源电器有限公司 | Defrosting control method and device and air-cooled module unit |
| CN112797587A (en) * | 2021-01-26 | 2021-05-14 | 珠海格力电器股份有限公司 | Air conditioner control method and air conditioner system |
| CN112797676A (en) * | 2021-01-21 | 2021-05-14 | 浙江中广电器股份有限公司 | Multi-online defrosting control method using refrigerant as floor heating |
| CN112833594A (en) * | 2020-08-27 | 2021-05-25 | 青岛海尔新能源电器有限公司 | Self-cleaning control method of heat pump water heater and heat pump water heater |
| CN112944753A (en) * | 2019-12-11 | 2021-06-11 | 杭州三花研究院有限公司 | Control system and control method thereof |
| CN113932505A (en) * | 2021-10-09 | 2022-01-14 | 东莞市锦沐节能科技有限公司 | Intelligent optimized ice-free perception defrosting system for defrosting |
| CN114264094A (en) * | 2021-12-15 | 2022-04-01 | 珠海格力电器股份有限公司 | Defrosting control method and refrigerating system |
| CN114459152A (en) * | 2022-03-01 | 2022-05-10 | 浙江乾丰智能科技有限公司 | Method for predicting frosting of air energy water heater |
| CN114739064A (en) * | 2022-03-23 | 2022-07-12 | 浙江中广电器集团股份有限公司 | Defrosting mode for preventing metal plates around fan from freezing |
| CN114739065A (en) * | 2022-04-28 | 2022-07-12 | 浙江中广电器集团股份有限公司 | Control method for air source variable frequency heat pump defrosting without stopping |
| CN114738848A (en) * | 2022-03-28 | 2022-07-12 | 青岛海尔空调器有限总公司 | Air conditioner electric heating control method and device, electronic equipment and storage medium |
| CN115247920A (en) * | 2022-06-27 | 2022-10-28 | 浙江中广电器集团股份有限公司 | Defrosting control method for multi-split air conditioner |
| CN115307348A (en) * | 2022-08-04 | 2022-11-08 | 国网陕西省电力有限公司电力科学研究院 | Reverse-cycle defrosting air source heat pump system and control method thereof |
| CN117450628A (en) * | 2023-12-26 | 2024-01-26 | 珠海格力电器股份有限公司 | Defrosting control method and device for unit, unit and storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITAN20100115A1 (en) * | 2010-07-12 | 2012-01-13 | Antonio Merloni Spa In A S | NO-FROST REFRIGERATED REFRIGERATOR |
| CN106016879A (en) * | 2016-05-13 | 2016-10-12 | 珠海格力电器股份有限公司 | Defrosting condition judgment method and device for unit and hot water unit |
| CN106482408A (en) * | 2016-03-09 | 2017-03-08 | 北京工业大学 | A kind of development approach of the multizone frosting collection of illustrative plates being suitable to prediction air source heat pump frosting degree |
| CN107084499A (en) * | 2017-05-17 | 2017-08-22 | 青岛海尔空调器有限总公司 | Air conditioner defrosting control method |
| CN107143978A (en) * | 2017-05-17 | 2017-09-08 | 广东美的暖通设备有限公司 | Air-conditioning system and its blower control method and device |
| CN209399601U (en) * | 2018-11-30 | 2019-09-17 | 上海海立睿能环境技术有限公司 | A kind of net for air-source heat pump units |
-
2018
- 2018-11-30 CN CN201811453043.XA patent/CN109539622A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITAN20100115A1 (en) * | 2010-07-12 | 2012-01-13 | Antonio Merloni Spa In A S | NO-FROST REFRIGERATED REFRIGERATOR |
| CN106482408A (en) * | 2016-03-09 | 2017-03-08 | 北京工业大学 | A kind of development approach of the multizone frosting collection of illustrative plates being suitable to prediction air source heat pump frosting degree |
| CN106016879A (en) * | 2016-05-13 | 2016-10-12 | 珠海格力电器股份有限公司 | Defrosting condition judgment method and device for unit and hot water unit |
| CN107084499A (en) * | 2017-05-17 | 2017-08-22 | 青岛海尔空调器有限总公司 | Air conditioner defrosting control method |
| CN107143978A (en) * | 2017-05-17 | 2017-09-08 | 广东美的暖通设备有限公司 | Air-conditioning system and its blower control method and device |
| CN209399601U (en) * | 2018-11-30 | 2019-09-17 | 上海海立睿能环境技术有限公司 | A kind of net for air-source heat pump units |
Cited By (37)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109579384B (en) * | 2018-11-23 | 2020-07-10 | 广东日出东方空气能有限公司 | Defrosting method of air source heat pump hot water unit |
| CN109579384A (en) * | 2018-11-23 | 2019-04-05 | 广东日出东方空气能有限公司 | The Defrost method of air friction drag |
| CN109974204A (en) * | 2019-04-01 | 2019-07-05 | 珠海格力电器股份有限公司 | The control method and device of air-conditioning with amendment defrost condition |
| CN109974204B (en) * | 2019-04-01 | 2020-10-20 | 珠海格力电器股份有限公司 | Control method and device of air conditioner with defrosting condition correction function |
| CN110285617A (en) * | 2019-06-26 | 2019-09-27 | 贵州大学 | A kind of air source heat pump defrosting control method |
| CN110425686A (en) * | 2019-08-09 | 2019-11-08 | 珠海格力电器股份有限公司 | Air cooling module unit defrosting control method, computer installation and computer readable storage medium |
| CN110553417A (en) * | 2019-08-13 | 2019-12-10 | 珠海格力电器股份有限公司 | air conditioning system and control method thereof |
| CN110715482B (en) * | 2019-08-30 | 2023-08-08 | 浙江正泰能效科技有限公司 | Defrosting method of air source heat pump unit |
| CN110715482A (en) * | 2019-08-30 | 2020-01-21 | 浙江正泰能效科技有限公司 | Defrosting method of air source heat pump unit |
| CN110726271A (en) * | 2019-11-11 | 2020-01-24 | 江苏天舒电器有限公司 | Efficient chassis icing-resistant finned heat exchanger and working method thereof |
| CN110726271B (en) * | 2019-11-11 | 2023-04-07 | 江苏天舒电器有限公司 | Efficient chassis icing-resistant finned heat exchanger and working method thereof |
| CN111023451A (en) * | 2019-11-29 | 2020-04-17 | 宁波奥克斯电气股份有限公司 | Control method and device for ultrasonic defrosting, storable medium and air conditioner |
| CN112944753A (en) * | 2019-12-11 | 2021-06-11 | 杭州三花研究院有限公司 | Control system and control method thereof |
| CN111174371A (en) * | 2019-12-31 | 2020-05-19 | 珠海格力电器股份有限公司 | Control method and device of air conditioner, storage medium and air conditioner |
| CN111156660A (en) * | 2020-01-02 | 2020-05-15 | 珠海格力电器股份有限公司 | Defrosting control method for heat pump water heater system, storage medium and air conditioner |
| CN111365825A (en) * | 2020-03-19 | 2020-07-03 | 宁波奥克斯电气股份有限公司 | Air conditioner defrosting control method and device and air conditioner |
| CN112781286A (en) * | 2020-04-17 | 2021-05-11 | 青岛海尔新能源电器有限公司 | Defrosting control method and device and air-cooled module unit |
| CN111692707A (en) * | 2020-06-08 | 2020-09-22 | 宁波奥克斯电气股份有限公司 | Defrosting control method and device for air conditioner external unit, storage medium and air conditioner |
| CN111928425A (en) * | 2020-07-16 | 2020-11-13 | 广东纽恩泰新能源科技发展有限公司 | Defrosting determination method for air source heat pump unit |
| CN112032913A (en) * | 2020-08-20 | 2020-12-04 | 广东纽恩泰新能源科技发展有限公司 | Method for detecting frosting state of heat exchanger by temperature and humidity sensor |
| CN112833594A (en) * | 2020-08-27 | 2021-05-25 | 青岛海尔新能源电器有限公司 | Self-cleaning control method of heat pump water heater and heat pump water heater |
| CN112484354A (en) * | 2020-11-02 | 2021-03-12 | 珠海格力电器股份有限公司 | Defrosting control method and device for air cooler, controller and air cooler |
| CN112665118A (en) * | 2020-12-22 | 2021-04-16 | 珠海格力电器股份有限公司 | Defrosting control method and device of heat pump unit, storage medium and heat pump unit |
| CN112797676A (en) * | 2021-01-21 | 2021-05-14 | 浙江中广电器股份有限公司 | Multi-online defrosting control method using refrigerant as floor heating |
| CN112797587A (en) * | 2021-01-26 | 2021-05-14 | 珠海格力电器股份有限公司 | Air conditioner control method and air conditioner system |
| CN113932505A (en) * | 2021-10-09 | 2022-01-14 | 东莞市锦沐节能科技有限公司 | Intelligent optimized ice-free perception defrosting system for defrosting |
| CN114264094A (en) * | 2021-12-15 | 2022-04-01 | 珠海格力电器股份有限公司 | Defrosting control method and refrigerating system |
| CN114459152A (en) * | 2022-03-01 | 2022-05-10 | 浙江乾丰智能科技有限公司 | Method for predicting frosting of air energy water heater |
| CN114459152B (en) * | 2022-03-01 | 2024-01-16 | 北溪特(浙江)科技有限公司 | Method for predicting frosting of air energy water heater |
| CN114739064A (en) * | 2022-03-23 | 2022-07-12 | 浙江中广电器集团股份有限公司 | Defrosting mode for preventing metal plates around fan from freezing |
| CN114739064B (en) * | 2022-03-23 | 2024-03-15 | 浙江中广电器集团股份有限公司 | Defrosting mode for preventing sheet metal around fan from icing |
| CN114738848A (en) * | 2022-03-28 | 2022-07-12 | 青岛海尔空调器有限总公司 | Air conditioner electric heating control method and device, electronic equipment and storage medium |
| CN114739065A (en) * | 2022-04-28 | 2022-07-12 | 浙江中广电器集团股份有限公司 | Control method for air source variable frequency heat pump defrosting without stopping |
| CN115247920A (en) * | 2022-06-27 | 2022-10-28 | 浙江中广电器集团股份有限公司 | Defrosting control method for multi-split air conditioner |
| CN115307348A (en) * | 2022-08-04 | 2022-11-08 | 国网陕西省电力有限公司电力科学研究院 | Reverse-cycle defrosting air source heat pump system and control method thereof |
| CN117450628A (en) * | 2023-12-26 | 2024-01-26 | 珠海格力电器股份有限公司 | Defrosting control method and device for unit, unit and storage medium |
| CN117450628B (en) * | 2023-12-26 | 2024-03-29 | 珠海格力电器股份有限公司 | Defrosting control method and device for unit, unit and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109539622A (en) | A kind of net for air-source heat pump units and its defrosting control method | |
| CN209399601U (en) | A kind of net for air-source heat pump units | |
| CN102022872B (en) | Defrosting control method for intelligent air cooling heat pump | |
| WO2020056956A1 (en) | Defrosting control method and device for heat pump unit, storage medium, and heat pump unit | |
| CN103759456B (en) | A kind of air-conditioning or the heat-exchange system of heat pump and Defrost method thereof | |
| CN106152643B (en) | Air source hot pump water heater Defrost method | |
| CN102141334B (en) | The automatic defrosting device of refrigeration equipment fin frosting detection device and application thereof | |
| CN109990517B (en) | Air conditioner intelligence quickly defrosting and protection control method | |
| CN101644511B (en) | Parallel flow evaporator and anti-freezing method thereof | |
| CN101975439B (en) | Defrosting operation control method for air conditioner | |
| CN204730374U (en) | A kind of accumulating type air-conditioning system | |
| CN204187787U (en) | A kind of microwave frost removal type domestic air conditioner | |
| CN106152641B (en) | Air-conditioning refrigerator accurately defrosts intelligent control method and system | |
| CN103162384B (en) | The blower control method of operation of heat pump | |
| CN112797593A (en) | Self-cleaning control method and single-cooling type air conditioner | |
| CN103742987B (en) | The Defrost method of new blower fan system | |
| CN101871684A (en) | Defrosting control method of air conditioner | |
| CN101382364B (en) | Defrosting method for low temperature dehumidifier | |
| CN106642437A (en) | Fog system capable of increasing seasonal energy efficiency ratio (SEER) of air conditioning and refrigeration unit all year around | |
| CN111795522A (en) | Defrosting end control method, processor and air-source heat pump hot water system | |
| CN104482651B (en) | A kind of air friction drag and its defrosting control method | |
| CN203964491U (en) | Heat pump defrosting control device | |
| CN103123173B (en) | Control method of heat-pump water heater | |
| CN103423927B (en) | For the Defrost method of air source heat pump system | |
| CN201104049Y (en) | Full fresh air heat pump type air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |