CN106765943A - The control method of outer machine blower fan, control device and constant speed Air-Cooled Heat Pump Unit - Google Patents
The control method of outer machine blower fan, control device and constant speed Air-Cooled Heat Pump Unit Download PDFInfo
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- CN106765943A CN106765943A CN201611175069.3A CN201611175069A CN106765943A CN 106765943 A CN106765943 A CN 106765943A CN 201611175069 A CN201611175069 A CN 201611175069A CN 106765943 A CN106765943 A CN 106765943A
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- blower fan
- gear
- supply water
- control
- water temperature
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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
- F24F11/89—Arrangement or mounting of control or safety devices
-
- 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
- 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
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The present invention proposes a kind of control method of outer machine blower fan,Control device and constant speed Air-Cooled Heat Pump Unit,The outer machine includes at least two blower fans,Each blower fan is provided with least two gears,Detect outer machine it is continuous supply water temperature is reached highest setting value less than preset value at runtime at least twice and when shutting down,Run following control logic,Before supply water temperature reaches the first preset temperature,The whole blower fans of control are maintained at highest wind velocity shelves,So that supply water temperature is rapidly achieved the first preset temperature,When supply water temperature reaches the first preset temperature,Control blower fan turns down at least one gear,When supply water temperature reaches the second preset temperature,Control blower fan is adjusted to minimum wind speed shelves,When supply water temperature reaches three preset temperatures,At least one blower fan is controlled to close,Until when supply water temperature reaches four preset temperatures,Control blower fan Close All,Extend the time for reaching highest setting temperature,So as to reduce outer machine to the frequency of warm start and stop,Ensure water supply water temperature stability.
Description
Technical field
The present invention relates to technical field of heat exchange, more particularly to a kind of control method of outer machine blower fan, control device and fixed
Fast Air-Cooled Heat Pump Unit.
Background technology
As people are constantly lifted to the consciousness of quality of life, in the winter time, increasing people understands Selection utilization floor heating
Mode carries out heating.For constant speed wind cooling cold and hot water source pump, under Smaller load (such as 10 DEG C or so of outdoor environment temperature)
During work, leaving water temperature will soon reach preset value, and press is constantly opened, stopped, and cause water supply fluctuating temperature larger, indoor temperature
More comfortable temperature is not reached for a long time.
For above-mentioned situation, there are two kinds of settling modes at present：(1) constant speed product is replaced using frequency conversion product, using frequency conversion
Control technology reduction ability output；(2) buffer tank is concatenated, to extend to the time shut down up to preset temperature, reduction stops
The change of supply water temperature after machine.But, constant speed product is replaced using frequency conversion, cost increase is huge；Series buffer water tank, not only into
This increase is larger, and to take extra construction area.
The content of the invention
It is a primary object of the present invention to provide a kind of control method of outer machine blower fan, it is intended to do not increasing cost and building
In the case of area, constant speed Air-Cooled Heat Pump Unit frequent start-stop under small load condition is solved, cause water supply fluctuating temperature larger
Technical problem.
To achieve the above object, the control method of outer machine blower fan proposed by the present invention, is applied to constant speed Air-Cooled Heat Pump Unit,
The outer machine includes at least two blower fans, and each blower fan is provided with least two gears, and the control method is comprised the following steps：
Detect outer machine continuously just makes supply water temperature reach highest setting value less than preset value at runtime at least twice
And when shutting down, run following control logic：
Before supply water temperature reaches the first preset temperature, the whole blower fans of control are maintained at highest wind velocity shelves；
When detecting supply water temperature and reaching the first preset temperature, the whole blower fans of control turn down at least one gear；
When detecting supply water temperature and reaching the second preset temperature, the whole blower fans of control are adjusted to minimum wind speed shelves；
When detecting supply water temperature and reaching three preset temperatures, at least one blower fan of control is closed；
When detecting supply water temperature and reaching four preset temperatures, the whole blower fans of control are closed；
Wherein, the preset temperature ＜ highest settings of the first the 3rd preset temperature ＜ of preset temperature ＜ the second preset temperature ＜ the 4th
Temperature.
Further, it is described when detecting supply water temperature and reaching four preset temperatures, the step of the whole blower fans of control are closed
Afterwards, also include：
When detecting supply water temperature and reaching highest setting temperature, the outer machine is shut down, when the outer machine is again started up, control
The whole blower fans of system are opened and are adjusted to highest wind velocity shelves.
Further, the outer machine includes the first blower fan and the second blower fan, and first blower fan and the second blower fan are equipped with
First gear, three gears of the second gear and third gear, first gear, the second gear, the rotation speed relation of third gear
For：First gear ＞ the second gear ＞ third gears, described when detecting supply water temperature and reaching the first preset temperature, control is all
The step of blower fan turns down at least one gear, specifically includes：
When detecting supply water temperature and reaching the first preset temperature, the first blower fan of control and the second blower fan are adjusted to the second gear；
When detecting the supply water temperature and no longer raising, outer machine quantity of heat given up is equal to load absorption heat, controls the first wind
After machine and the second blower fan are maintained at second the first Preset Time of gear, recall to the first gear；
When detecting the supply water temperature and declining, outer machine quantity of heat given up is less than load absorption heat, the first blower fan of control and
Second blower fan is recalled to the first gear.
Further, the outer machine includes the first blower fan and the second blower fan, and first blower fan and the second blower fan are equipped with
First gear, three gears of the second gear and third gear, first gear, the second gear, the rotation speed relation of third gear
For：First gear ＞ the second gear ＞ third gears, described when detecting supply water temperature and reaching the second preset temperature, control is all
The step of blower fan is adjusted to minimum wind speed shelves, specifically includes：
When detecting supply water temperature and reaching the second preset temperature, the first blower fan of control and the second blower fan are adjusted to third gear；
When detecting the supply water temperature and no longer raising, outer machine quantity of heat given up is equal to load absorption heat, controls the first wind
After machine and the second blower fan are maintained at the Preset Time of third gear second, recall to the second gear or the first gear；
When detecting the supply water temperature and declining, outer machine quantity of heat given up is less than load absorption heat, the first blower fan of control and
Second blower fan is recalled to the second gear or the first gear.
Further, the outer machine includes the first blower fan and the second blower fan, described to detect supply water temperature to reach the 3rd pre-
If during temperature, at least one blower fan of control is specifically included the step of close：
When detecting supply water temperature and reaching three preset temperatures, the first blower fan of control or the second blower fan are closed；
When detecting the supply water temperature and no longer raising, outer machine quantity of heat given up is equal to load absorption heat, and shape is closed in control
First blower fan or the second blower fan of state are opened after remaining turned-off the 3rd Preset Time；
When detecting the supply water temperature decline, outer machine quantity of heat given up is less than load absorption heat, control closed mode
First blower fan or the second blower fan are opened.
Further, the outer machine includes the first blower fan and the second blower fan, described to detect supply water temperature to reach the 4th pre-
If during temperature, the step of the whole blower fans of control are closed, specifically including：
When detecting supply water temperature and reaching four preset temperatures, the first blower fan of control and the second blower fan are closed；
When detecting the supply water temperature and no longer raising, outer machine quantity of heat given up is equal to load absorption heat, controls the first wind
After machine and the second blower fan remain turned-off the 4th Preset Time, the first blower fan of control and/or the second blower fan are opened；
When detecting the supply water temperature and declining, outer machine quantity of heat given up is less than load absorption heat, the first blower fan of control and
Second blower fan is opened.
Further, first blower fan and the second blower fan are equipped with the first gear, the second gear and third gear three
Gear, first gear, the second gear, the rotation speed relation of third gear are：First gear ＞ the second gear ＞ third gears,
After the step of the first blower fan of the control and the second blower fan are opened, also include：
The wind speed of first blower fan and the second blower fan is adjusted to the second gear or the first gear from third gear.
Another object of the present invention is to provide a kind of control device of outer machine blower fan, the outer machine includes at least two wind
Machine, the blower fan is provided with least two gears, and the control device includes：
Control logic starting module, detect outer machine continuously just makes water supply temperature less than preset value at runtime at least twice
When degree reaches highest setting value and shuts down, following control logic is run；
Before supply water temperature reaches the first preset temperature, the whole blower fans of control are maintained at highest wind velocity shelves；
When detecting supply water temperature and reaching the first preset temperature, the whole blower fans of control turn down at least one gear；
When detecting supply water temperature and reaching the second preset temperature, the whole blower fans of control are adjusted to minimum wind speed shelves；
When detecting supply water temperature and reaching three preset temperatures, at least one blower fan of control is closed；
When detecting supply water temperature and reaching four preset temperatures, the whole blower fans of control are closed；
Wherein, the preset temperature ＜ highest settings of the first the 3rd preset temperature ＜ of preset temperature ＜ the second preset temperature ＜ the 4th
Temperature.
Further, the control device also includes arriving warm start and stop module, detects supply water temperature and reaches highest setting temperature
When, control outer machine to shut down；When the outer machine is again started up, the whole blower fans of control are opened and are adjusted to highest wind velocity shelves.
The present invention also provides a kind of constant speed Air-Cooled Heat Pump Unit, and the constant speed Air-Cooled Heat Pump Unit includes outer machine as described above
The control device of blower fan.
The control method of outer machine blower fan of the invention, is applied to constant speed Air-Cooled Heat Pump Unit, and the outer machine includes at least two
Individual blower fan, each blower fan is provided with least two gears, continuous at least twice at runtime less than preset value outer machine is detected
When supply water temperature is reached highest setting value and is shut down, following control logic is run, namely to reach first in supply water temperature pre-
If before temperature, the whole blower fans of control are maintained at highest wind velocity shelves, make to absorb the heat of external environment condition by the refrigerant of condenser
The first preset temperature is rapidly achieved, after supply water temperature reaches the first preset temperature, control blower fan turns down at least one gear,
To reduce the elevated speed of supply water temperature, when supply water temperature reaches the second preset temperature, control blower fan is adjusted to minimum wind speed shelves,
When supply water temperature reaches three preset temperatures, at least one blower fan of control is closed, until supply water temperature reaches the 4th default temperature
When spending, blower fan Close All is controlled.The control method of outer machine blower fan of the invention, by control the operating air velocity of outer machine blower fan with
Operation quantity, adjusts the heat exchange amount between the refrigerant and external environment condition in coolant loop and heat transfer rate, and then adjust outer machine
Quantity of heat given up, extension supply water temperature reach highest setting temperature time, reduce outer machine to Wen Qi, the frequency stopped, it is ensured that
Water supply water temperature stability.
Brief description of the drawings
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
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Structure according to these accompanying drawings obtains other accompanying drawings.
Fig. 1 is the flow chart of the embodiment of control method one of the outer machine blower fan of the present invention
Fig. 2 is the functional block diagram of the embodiment of control device one of the outer machine blower fan of the present invention；
Fig. 3 is the control logic figure of the control method of Fig. 1 China and foreign countries machine blower fan.
Drawing reference numeral explanation：
| Label | Title | Label | Title |
| 100 | The control device of outer machine blower fan | 20 | To warm start and stop module |
| 10 | Control logic starting module |
The realization of the object of the invention, functional characteristics and advantage will be described further referring to the drawings in conjunction with the embodiments.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The present invention proposes a kind of control method of the outer machine blower fan for being applied to constant speed Air-Cooled Heat Pump Unit.
Reference picture 1, Fig. 1 is the flow chart of the embodiment of control method one of outer machine blower fan of the invention.
In the present embodiment, with further reference to Fig. 3, the outer machine includes at least two blower fans, and each blower fan is provided with least two
Individual gear, the control method is comprised the following steps：
S10：Detect that outer machine is continuous just to be made supply water temperature T reach highest to set less than preset value at runtime at least twice
Definite value TSAnd when shutting down, run following control logic：
S11：The first preset temperature T is reached in supply water temperature TS-Tn7Before, whole blower fans are controlled to be maintained at highest wind velocity
Shelves；
S12：Detect supply water temperature T and reach the first preset temperature TS-Tn7When, the whole blower fans of control turn down at least one grade
Position；
S13：Detect supply water temperature T and reach the second preset temperature TS-Tn5When, the whole blower fans of control are adjusted to minimum wind speed
Shelves；
S14：Detect supply water temperature T and reach the 3rd preset temperature TS-Tn3When, at least one blower fan of control is closed；
S15：Detect supply water temperature T and reach the 4th preset temperature TS-Tn1When, the whole blower fans of control are closed；
S20：Detect supply water temperature T and reach highest setting temperature TSWhen, control outer machine to shut down, opened again in the outer machine
When dynamic, the whole blower fans of control are opened and are adjusted to highest wind velocity shelves；
Wherein, wherein, the first preset temperature TS-Tn7The second preset temperatures of ＜ TS-Tn5The preset temperature T of ＜ the 3rdS-Tn3＜
Four preset temperature TS-Tn1＜ highest setting temperature TS。
In the present embodiment, the outer machine produce the gaseous coolant of HTHP by coolant loop in heat exchange element with
Hot water to be added in heating loop is exchanged heat, and the gaseous state that hot water to be added absorbs HTHP when by heat exchange element is cold
The heat that matchmaker carries, temperature is constantly raised in heating loop circulation, until after reaching highest setting temperature, outer machine is shut down.
Outer machine in the present embodiment includes at least two blower fans, and the blower fan is constant speed blower fan, be provided with highest wind velocity shelves and
At least two gears such as minimum wind speed shelves, when the load of heating loop is smaller, the water temperature in heating loop circulation is rapidly raised,
Outer machine operation duration is shorter, and when water temperature drops to a certain temperature, outer machine startup optimization again is continuous at least outer machine is being detected
When supply water temperature is reached highest setting temperature and is shut down less than preset value at runtime twice, it is again started up being held during operation
The control logic that row sets, wherein, the first preset temperature T of settingS-Tn7The second preset temperatures of ＜ TS-Tn5＜ the 3rd presets
Temperature TS-Tn3The preset temperature T of ＜ the 4thS-Tn1＜ highest setting temperature TS, the control logic is with further reference to Fig. 3：In the temperature that supplies water
Degree T reaches the first preset temperature TS-Tn7Before, namely T is [0, TS-Tn7) interval interior, the whole blower fans of control are opened and are maintained at
Highest wind velocity shelves, to accelerate the speed that the refrigerant in coolant loop and external environment condition are exchanged heat, absorb more outside heats,
To form the gaseous coolant of temperature HTHP higher after being compressed through compressor, so as to the standby heat in heating loop
When water body is exchanged heat, the supply water temperature T of hot water to be added is set to be quickly raised to the first preset temperature TS-Tn7, detecting confession
Coolant-temperature gage T reaches the first preset temperature TS-Tn7When, in order to reduce the climbing speed of supply water temperature T, extend what outer machine was shut down to temperature
Time, the whole blower fans of control turn down at least one gear, to reduce the volume air quantity and volume wind velocity of blower fan, reduce refrigerant and absorb outer
The heat in portion, and then the heat carried by the gaseous coolant after compressor is reduced, reduce the water body and gaseous state in heating loop
Heat exchange amount between refrigerant, delays the ramp-up rate of supply water temperature, is this supply water temperature T in interval (TS-Tn7, TS-Tn5) in, control
Blower fan processed is run with the gear less than highest wind velocity shelves, and now outer machine quantity of heat given up absorbs heat more than heat load, and supply water temperature
Degree T continues to keep rising, and the second preset temperature T is reached supply water temperature T is detectedS-Tn5When, control whole blower fans to be adjusted to most
Low wind speed shelves, further to reduce the outside heat of refrigerant absorption, if now the heat of outer machine output is still greater than heat load
The heat of absorption, the supply water temperature T may proceed to rise to the 3rd preset temperature TS-Tn3, namely supply water temperature T is in interval (TS-
Tn5, TS-Tn3) in, control blower fan with minimum wind speed shelves run, due to the wind speed of blower fan be adjusted to it is minimum, in order to further drop
The heating rate of low supply water temperature, the 3rd preset temperature T is reached supply water temperature is detectedS-Tn3When, control at least one blower fan
Close, further reduce outside air output, the 4th preset temperature T is reached supply water temperature T is detectedS-Tn1When, the whole wind of control
Office closes, and now only depends on refrigerant and heat exchange is directly realized with external environment condition, and now the quantity of heat given up of outer machine is minimum, with slow
Water body in ground heating loop, extension supply water temperature T reaches highest setting temperature TSTime, detecting supply water temperature
T reaches highest setting temperature TSWhen, the outer machine is shut down, the water body in heating loop meeting and external rings in no heat supply
Border carries out heat exchange, and then after a time, supply water temperature is down to a certain temperature, is now again started up outer machine, and control
Whole blower fans are opened and are adjusted to highest wind velocity shelves, and the gaseous coolant of quick manufacture HTHP is carried out to the water body in heating loop
Heating, makes it be rapidly achieved the first preset temperature TS-Tn7, in the present embodiment, 0 ＜ TS-Tn7＜ TS-Tn5＜ TS-Tn3＜ TS-Tn1
＜ TS, supply water temperature T is [0, TS] interval interior, outer machine quantity of heat given up absorbs heat more than heat load.
The control method of outer machine blower fan of the invention, by controlling the operating air velocity and operation quantity of outer machine blower fan, adjustment
Heat exchange amount between refrigerant and external environment condition and heat transfer rate in coolant loop, and then the quantity of heat given up of outer machine is adjusted, extend
Supply water temperature reaches the time of highest setting temperature, reduces outer machine to the frequency of warm start and stop, it is ensured that water supply water temperature stability.
Further, reference picture 1, the outer machine includes the first blower fan and the second blower fan, first blower fan and the second wind
Machine is equipped with the first gear, three gears of the second gear and third gear, first gear, the second gear, third gear
Rotation speed relation is：First gear ＞ the second gear ＞ third gears, step S12 is specifically included：
When detecting supply water temperature and reaching the first preset temperature, the first blower fan of control and the second blower fan are adjusted to the second gear；
When detecting the supply water temperature and no longer raising, outer machine quantity of heat given up is equal to load absorption heat, controls the first wind
After machine and the second blower fan are maintained at second the first Preset Time of gear, recall to the first gear；
When detecting the supply water temperature and declining, outer machine quantity of heat given up is less than load absorption heat, the first blower fan of control and
Second blower fan is recalled to the first gear.
In the present embodiment, outer machine includes two blower fans of the first blower fan and the second blower fan, first blower fan and the second wind
Machine is equipped with the first gear, three gears of the second gear and third gear, first gear, the second gear, third gear
Rotation speed relation is：First gear ＞ the second gear ＞ third gears, in other embodiments, the outer machine can also include more
Blower fan, the blower fan can also set more gears, with further reference to Fig. 3, the first preset temperature be reached in supply water temperature T
TS-Tn7When, the first blower fan of control and the second blower fan are adjusted to the second gear, because the heat of outer machine output absorbs more than heat load
Heat, so supply water temperature T can with outer machine operation continue rise, until reaching a temperature such as TS-Tn5Or TS-Tn3When, outward
The heat of machine output is equal to the heat that heat load absorbs, and now supply water temperature T will not be raised again, namely in (TS- Tn7, TS-
Tn5) or (TS- Tn7, TS- Tn3) interval interior, control first blower fan and the second blower fan to keep the second gear, it is outer in order to ensure
The Effec-tive Function of machine, is detecting supply water temperature T in TS- Tn5Or TS-Tn3When no longer raising, the first blower fan and the second wind are controlled
Machine is recalled to the first gear after keeping second the first Preset Time of gear, and now the heat of outer machine output is again more than heat load
The heat of absorption, supply water temperature T can continue to rise again, until reaching highest setting temperature TS.Reached supply water temperature T is detected
To the first preset temperature TS-Tn7When, the first blower fan of control and the second blower fan are adjusted to the second gear, if the now heat of outer machine output
Less than the heat that heat load absorbs, i.e. after the first blower fan and the second blower fan are adjusted to the second gear, supply water temperature T is presented decline and becomes
Gesture, namely can drop to temperature T before detection module makes detectionS- Tn8, namely in (TS- Tn7, TS- Tn8) interval interior,
First blower fan and the second blower fan are maintained at the second gear, in order to ensure the stabilization of supply water temperature T, are reached supply water temperature T is detected
To TS- Tn8When, the first blower fan of control and the second blower fan are recalled to the first gear, and now the heat of outer machine output is again more than confession
The heat of warm load absorption, supply water temperature T can continue to rise again, temperature rise to the first preset temperature control the first blower fan and
Second blower fan is adjusted to the second gear, recalls to the first gear after the Preset Time of above-mentioned control first is performed repeatedly, hereafter leaving water temperature
Rise to highest setting temperature TS, outer machine shutdown.
Further, reference picture 1, the outer machine includes the first blower fan and the second blower fan, first blower fan and the second wind
Machine is equipped with the first gear, three gears of the second gear and third gear, first gear, the second gear, third gear
Rotation speed relation is：First gear ＞ the second gear ＞ third gears, step S13 is specifically included：
When detecting supply water temperature and reaching the second preset temperature, the first blower fan of control and the second blower fan are adjusted to third gear；
When detecting the supply water temperature and no longer raising, outer machine quantity of heat given up is equal to load absorption heat, controls the first wind
After machine and the second blower fan are maintained at the Preset Time of third gear second, recall to the second gear or the first gear；
When detecting the supply water temperature and declining, outer machine quantity of heat given up is less than load absorption heat, the first blower fan of control and
Second blower fan is recalled to the second gear or the first gear.
In the present embodiment, outer machine includes two blower fans of the first blower fan and the second blower fan, first blower fan and the second wind
Machine is equipped with the first gear, three gears of the second gear and third gear, first gear, the second gear, third gear
Rotation speed relation is：First gear ＞ the second gear ＞ third gears, in other embodiments, the outer machine can also include more
Blower fan, the blower fan can also set more gears, with further reference to Fig. 3, the second preset temperature be reached in supply water temperature T
TS-Tn5When, the first blower fan of control and the second blower fan are adjusted to third gear, because the heat of outer machine output absorbs more than heat load
Heat, so supply water temperature T can with outer machine operation continue rise, until reaching a temperature such as TS-Tn3Or TS-Tn1When, outward
The heat of machine output is equal to the heat that heat load absorbs, and now supply water temperature T will not be raised again, namely in (TS- Tn5, TS-
Tn3) or (TS- Tn5, TS- Tn1) interval interior, control first blower fan and the second blower fan to keep third gear, it is outer in order to ensure
The Effec-tive Function of machine, is detecting supply water temperature T in TS- Tn3Or TS-Tn1When no longer raising, the first blower fan and the second wind are controlled
Machine is recalled to the second gear or the first gear after keeping the Preset Time of third gear second, and now the heat of outer machine output is big again
In the heat that heat load absorbs, supply water temperature T can continue to rise again, until reaching highest setting temperature TSOuter machine stops afterwards
Machine.The second preset temperature T is reached supply water temperature T is detectedS-Tn5When, the first blower fan of control and the second blower fan are adjusted to third gear
Position, if the now heat of the heat less than heat load absorption of outer machine output, i.e. the first blower fan and the second blower fan are adjusted to third gear
Behind position, supply water temperature T is presented downward trend, namely can drop to temperature T before detection module makes detectionS- Tn6, namely
In (TS- Tn5, TS- Tn6) interval interior, the first blower fan and the second blower fan are maintained at third gear, in order to ensure supply water temperature T's
Stabilization, T is reached supply water temperature T is detectedS- Tn6When, the first blower fan of control and the second blower fan are recalled to the second gear or first
Gear, the heat that now heat of outer machine output absorbs more than heat load again, supply water temperature T can continue to rise again, temperature
Degree rises to the second preset temperature and controls the first blower fan and the second blower fan to be adjusted to third gear, above-mentioned control second is performed repeatedly pre-
If recalling to the first gear after the time, hereafter leaving water temperature rises to highest setting temperature TS, outer machine shutdown.
Further, reference picture 1, the outer machine includes the first blower fan and the second blower fan, and step S14 is specifically included：
When detecting supply water temperature and reaching three preset temperatures, the first blower fan of control or the second blower fan are closed；
When detecting the supply water temperature and no longer raising, outer machine quantity of heat given up is equal to load absorption heat, and shape is closed in control
First blower fan or the second blower fan of state are opened after remaining turned-off the 3rd Preset Time；
When detecting the supply water temperature decline, outer machine quantity of heat given up is less than load absorption heat, control closed mode
First blower fan or the second blower fan are opened.
In the present embodiment, outer machine includes two blower fans of the first blower fan and the second blower fan, first blower fan and the second wind
Machine is equipped with the first gear, three gears of the second gear and third gear, first gear, the second gear, third gear
Rotation speed relation is：First gear ＞ the second gear ＞ third gears, in other embodiments, the outer machine can also include more
Blower fan, the blower fan can also set more gears, with further reference to Fig. 3, the 3rd preset temperature be reached in supply water temperature T
TS-Tn3When, the first blower fan of control or the second blower fan are closed, because the heat of outer machine output is more than the heat that heat load absorbs,
So supply water temperature T can continue to rise with the operation of outer machine, until reaching a temperature such as TS-Tn1When, heat of outer machine output etc.
In the heat that heat load absorbs, now supply water temperature T will not be raised again, namely in (TS- Tn3, TS- Tn1) interval interior, control
First blower fan or the second blower fan are remained off, and in order to ensure the Effec-tive Function of outer machine, are existed supply water temperature T is detected
TS-Tn1When no longer raising, first blower fan or the second blower fan of closed mode is controlled to be opened after remaining turned-off the 3rd Preset Time,
In other embodiment, after the first blower fan and the second blower fan are opened can also by its wind speed from third gear be adjusted to the second gear or
First gear, the heat that the heat of now outer machine output absorbs more than heat load again, on supply water temperature T can continue again
Rise, until reaching highest setting temperature TSOuter machine is shut down afterwards.The 3rd preset temperature T is reached supply water temperature T is detectedS-Tn3When,
The first blower fan or the second blower fan is controlled to close, if now the heat of outer machine output is less than the heat that heat load absorbs, i.e., first
After blower fan or the second blower fan are closed, supply water temperature T is presented downward trend, namely can be dropped to before detection module makes detection
Temperature TS- Tn4, namely in (TS- Tn3, TS- Tn4) interval interior, one of the first blower fan and the second blower fan are remained turned-off, in order to protect
The stabilization of testimony coolant-temperature gage T, T is reached supply water temperature T is detectedS- Tn4When, control first blower fan or second of closed mode
Blower fan is opened, and in other embodiments, its wind speed can also be adjusted from third gear after the first blower fan and the second blower fan are opened
To the second gear or the first gear, the heat that now heat of outer machine output absorbs more than heat load again, supply water temperature T meetings
Persistently rise again, temperature rises to the 3rd preset temperature and controls the first blower fan or the second blower fan to close, and above-mentioned control is performed repeatedly
The first gear is recalled to after making the 3rd Preset Time, hereafter leaving water temperature rises to highest setting temperature TS, outer machine shutdown.
Further, reference picture 1, the outer machine includes the first blower fan and the second blower fan, and step S15 is specifically included：
When detecting supply water temperature and reaching four preset temperatures, the first blower fan of control and the second blower fan are closed；
When detecting the supply water temperature and no longer raising, outer machine quantity of heat given up is equal to load absorption heat, controls the first wind
After machine and the second blower fan remain turned-off the 4th Preset Time, the first blower fan of control and/or the second blower fan are opened；
When detecting the supply water temperature and declining, outer machine quantity of heat given up is less than load absorption heat, the first blower fan of control and
Second blower fan is opened.
In the present embodiment, outer machine includes two blower fans of the first blower fan and the second blower fan, first blower fan and the second wind
Machine is equipped with the first gear, three gears of the second gear and third gear, first gear, the second gear, third gear
Rotation speed relation is：First gear ＞ the second gear ＞ third gears, in other embodiments, the outer machine can also include more
Blower fan, the blower fan can also set more gears, with further reference to Fig. 3, the 4th preset temperature be reached in supply water temperature T
TS-Tn1When, the first blower fan of control and the second blower fan are closed, because the heat of outer machine output is more than the heat that heat load absorbs,
So supply water temperature T can continue to rise with the operation of outer machine, until reaching a temperature such as TS-Tn11When, heat of outer machine output etc.
In the heat that heat load absorbs, now supply water temperature T will not be raised again, namely in (TS- Tn1, TS- Tn11) interval interior, control
Make first blower fan and the second blower fan is remained off, in order to ensure the Effec-tive Function of outer machine, detect supply water temperature T
In TS-Tn11When no longer raising, after controlling the first blower fan and the second blower fan to remain turned-off the 4th Preset Time, the first blower fan is controlled
And/or second blower fan open, in other embodiments, can also be by its wind speed from the after the first blower fan and the second blower fan are opened
Three gears are adjusted to the second gear or the first gear, the heat that now heat of outer machine output absorbs more than heat load again, supply
Coolant-temperature gage T can continue to rise again, until reaching highest setting temperature TSOuter machine is shut down afterwards.Reached supply water temperature T is detected
4th preset temperature TS-Tn1When, the first blower fan of control and the second blower fan are closed, if now the heat of outer machine output is negative less than heating
After the heat that lotus absorbs, i.e. the first blower fan and the second blower fan are closed, supply water temperature T is presented downward trend, namely in detection module
Temperature T can be dropped to before making detectionS- Tn2, namely in (TS- Tn1, TS- Tn2) it is interval in, the first blower fan and the second blower fan
Remain turned-off, in order to ensure the stabilization of supply water temperature T, T is reached supply water temperature T is detectedS- Tn2When, control the first blower fan
And/or second blower fan open, in other embodiments, can also be by its wind speed from the after the first blower fan and the second blower fan are opened
Three gears are adjusted to the second gear or the first gear, the heat that now heat of outer machine output absorbs more than heat load again, supply
Coolant-temperature gage T can continue to rise again, and temperature rises to the 4th preset temperature and controls the first blower fan and the second blower fan to close, and holds repeatedly
The first gear is recalled to after the above-mentioned Preset Time of control the 4th of row, hereafter leaving water temperature rises to highest setting temperature TS, outer machine stops
Machine.
Present invention further propose that a kind of control device of outer machine blower fan.
Reference picture 2, Fig. 2 is the functional block diagram of the embodiment of control device one of the outer machine blower fan of the present invention.
In the present embodiment, with further reference to Fig. 3, the outer machine includes at least two blower fans, and the blower fan is provided with least two
Individual gear, the control device 100 includes：
Control logic starting module 10, detect outer machine continuously just makes water supply less than preset value at runtime at least twice
Temperature T reaches highest setting value TSAnd when shutting down, run following control logic：
The first preset temperature T is reached in supply water temperature TS-Tn7Before, whole blower fans are controlled to be maintained at highest wind velocity shelves；
Detect supply water temperature T and reach the first preset temperature TS-Tn7When, the whole blower fans of control turn down at least one gear；
Detect supply water temperature T and reach the second preset temperature TS-Tn5When, the whole blower fans of control are adjusted to minimum wind speed shelves；
Detect supply water temperature T and reach the 3rd preset temperature TS-Tn3When, at least one blower fan of control is closed；
Detect supply water temperature T and reach the 4th preset temperature TS-Tn1When, the whole blower fans of control are closed；
To warm start and stop module 20, detect supply water temperature T and reach highest setting temperature TSWhen, control outer machine to shut down；Institute
When stating outer machine and being again started up, the whole blower fans of control are opened and are adjusted to highest wind velocity shelves；
Wherein, the first preset temperature TS-Tn7The second preset temperatures of ＜ TS-Tn5The preset temperature T of ＜ the 3rdS-Tn3＜ the 4th is pre-
If temperature TS-Tn1＜ highest setting temperature TS。
Outer machine in the present embodiment includes at least two blower fans, and the blower fan is constant speed blower fan, be provided with highest wind velocity shelves and
At least two gears such as minimum wind speed shelves, when the load of heating loop is smaller, the water temperature in heating loop circulation is rapidly raised,
Outer machine operation duration is shorter, when water temperature drops to a certain temperature, outer machine startup optimization again, in control logic starting module 10
Detect outer machine continuously just makes supply water temperature reach highest setting temperature and shut down less than preset value at runtime at least twice
When, the control logic for setting is performed when being again started up operation, wherein, the first preset temperature T of settingS-Tn7＜ second presets
Temperature TS-Tn5The preset temperature T of ＜ the 3rdS-Tn3The preset temperature T of ＜ the 4thS-Tn1＜ highest setting temperature TS, the control logic enters
One step reference picture 3：The first preset temperature T is reached in supply water temperature TS-Tn7Before, namely T is [0, TS-Tn7) interval interior, control
Whole blower fans are opened and are maintained at highest wind velocity shelves, to accelerate the speed that the refrigerant in coolant loop and external environment condition are exchanged heat
Degree, absorbs more outside heats, to form the gaseous coolant of temperature HTHP higher after being compressed through compressor, so as to
When the standby hot water in heating loop is exchanged heat, making the supply water temperature T of hot water to be added, to be quickly raised to first pre-
If temperature TS-Tn7, the first preset temperature T is reached supply water temperature T is detectedS-Tn7When, in order to reduce the rising of supply water temperature T
Speed, extends the time that outer machine is shut down to temperature, and control whole blower fans turn down at least one gear, with reduce the volume air quantity of blower fan with
Volume wind velocity, reduces the heat outside refrigerant absorption, and then reduces the heat carried by the gaseous coolant after compressor, reduces
The heat exchange amount between water body and gaseous coolant in heating loop, delays the ramp-up rate of supply water temperature, is that this supply water temperature T exists
Interval (TS-Tn7, TS-Tn5) in, control blower fan is run with the gear less than highest wind velocity shelves, and now outer machine quantity of heat given up is more than and supplies
Warm load absorption heat, supply water temperature T continues to keep rising, and the second preset temperature T is reached supply water temperature T is detectedS-Tn5
When, control whole blower fans to be adjusted to minimum wind speed shelves, further to reduce the outside heat of refrigerant absorption, if now outer machine output
The heat that is absorbed still greater than heat load of heat, the supply water temperature T may proceed to rise to the 3rd preset temperature TS-Tn3,
Namely supply water temperature T is in interval (TS-Tn5, TS-Tn3) in, control blower fan with minimum wind speed shelves run, due to blower fan wind speed
It is minimum through being adjusted to, in order to further reduce the heating rate of supply water temperature, the 3rd preset temperature is reached supply water temperature is detected
TS-Tn3When, at least one blower fan of control is closed, and further reduces outside air output, and supply water temperature T is detected, to reach the 4th pre-
If temperature TS-Tn1When, the whole blower fans of control are closed, and now the quantity of heat given up of outer machine is minimum, with lentamente heating loop
Water body, extension supply water temperature T reaches highest setting temperature TSTime, to temperature shut down module 20 detecting supply water temperature T
Reach highest setting temperature TSWhen, control outer machine to shut down, the water body in heating loop meeting and external rings in no heat supply
Border carries out heat exchange, and then after a time, supply water temperature is down to a certain temperature, is now again started up outer machine, and control
Whole blower fans are opened and are adjusted to highest wind velocity shelves, and the gaseous coolant of quick manufacture HTHP is carried out to the water body in heating loop
Heating, makes it be rapidly achieved the first preset temperature TS-Tn7, in the present embodiment, 0 ＜ TS-Tn7＜ TS-Tn5＜ TS-Tn3＜ TS-Tn1
＜ TS, supply water temperature T is [0, TS] interval interior, outer machine quantity of heat given up absorbs heat more than heat load.
The control device 100 of outer machine blower fan of the invention, the operating air velocity and fortune of outer machine blower fan are controlled by control logic
Line number amount, adjusts the heat exchange amount between the refrigerant and external environment condition in coolant loop and heat transfer rate, and then adjust the defeated of outer machine
Go out heat, extension supply water temperature reaches the time of highest setting temperature, reduces outer machine to the frequency of warm start and stop, it is ensured that water supply water
Temperature stabilization.
The present invention also proposes a kind of constant speed Air-Cooled Heat Pump Unit, and the constant speed Air-Cooled Heat Pump Unit includes outer machine as described above
The control device 100 of blower fan, the operating air velocity and operation quantity of outer machine blower fan is controlled by control logic, in adjustment coolant loop
Refrigerant and external environment condition between heat exchange amount and heat transfer rate, and then adjust the quantity of heat given up of outer machine, extend supply water temperature and arrive
Up to the time of highest setting temperature, outer machine to Wen Qi, the frequency stopped is reduced, it is ensured that water supply water temperature stability.
The preferred embodiments of the present invention are these are only, the scope of the claims of the invention is not thereby limited, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of control method of outer machine blower fan, is applied to constant speed Air-Cooled Heat Pump Unit, it is characterised in that the outer machine is included extremely
Few two blower fans, each blower fan is provided with least two gears, and the control method is comprised the following steps：
Detect outer machine continuously just makes supply water temperature reach highest setting value and stop less than preset value at runtime at least twice
During machine, following control logic is run：
Before supply water temperature reaches the first preset temperature, the whole blower fans of control are maintained at highest wind velocity shelves；
When detecting supply water temperature and reaching the first preset temperature, the whole blower fans of control turn down at least one gear；
When detecting supply water temperature and reaching the second preset temperature, the whole blower fans of control are adjusted to minimum wind speed shelves；
When detecting supply water temperature and reaching three preset temperatures, at least one blower fan of control is closed；
When detecting supply water temperature and reaching four preset temperatures, the whole blower fans of control are closed；
Wherein, the preset temperature ＜ highest setting temperature of the first the 3rd preset temperature ＜ of preset temperature ＜ the second preset temperature ＜ the 4th
Degree.
2. the control method of outer machine blower fan according to claim 1, it is characterised in that the supply water temperature that detects reaches
During four preset temperatures, the step of the whole blower fans of control are closed after, also include：
When detecting supply water temperature and reaching highest setting temperature, the outer machine is shut down, and when the outer machine is again started up, control is complete
Portion's blower fan is opened and is adjusted to highest wind velocity shelves.
3. the control method of outer machine blower fan according to claim 2, it is characterised in that the outer machine include the first blower fan and
Second blower fan, first blower fan and the second blower fan are equipped with the first gear, three gears of the second gear and third gear, institute
Stating the first gear, the second gear, the rotation speed relation of third gear is：First gear ＞ the second gear ＞ third gears, the inspection
When measuring supply water temperature and reaching the first preset temperature, the step of the whole blower fans of control turn down at least one gear, specifically include：
When detecting supply water temperature and reaching the first preset temperature, the first blower fan of control and the second blower fan are adjusted to the second gear；
When detecting the supply water temperature and no longer raising, outer machine quantity of heat given up is equal to load absorption heat, the first blower fan of control and
After second blower fan is maintained at second the first Preset Time of gear, recall to the first gear；
When detecting the supply water temperature decline, outer machine quantity of heat given up is less than load absorption heat, controls the first blower fan and second
Blower fan is recalled to the first gear.
4. the control method of outer machine blower fan according to claim 2, it is characterised in that the outer machine include the first blower fan and
Second blower fan, first blower fan and the second blower fan are equipped with the first gear, three gears of the second gear and third gear, institute
Stating the first gear, the second gear, the rotation speed relation of third gear is：First gear ＞ the second gear ＞ third gears, the inspection
When measuring supply water temperature and reaching the second preset temperature, the step of the whole blower fans of control are adjusted to minimum wind speed shelves, specifically include：
When detecting supply water temperature and reaching the second preset temperature, the first blower fan of control and the second blower fan are adjusted to third gear；
When detecting the supply water temperature and no longer raising, outer machine quantity of heat given up is equal to load absorption heat, the first blower fan of control and
After second blower fan is maintained at the Preset Time of third gear second, recall to the second gear or the first gear；
When detecting the supply water temperature decline, outer machine quantity of heat given up is less than load absorption heat, controls the first blower fan and second
Blower fan is recalled to the second gear or the first gear.
5. the control method of outer machine blower fan according to claim 2, it is characterised in that the outer machine include the first blower fan and
Second blower fan, it is described when detecting supply water temperature and reaching three preset temperatures, the step of at least one blower fan of control is closed, specifically
Including：
When detecting supply water temperature and reaching three preset temperatures, the first blower fan of control or the second blower fan are closed；
When detecting the supply water temperature and no longer raising, outer machine quantity of heat given up is equal to load absorption heat, control closed mode
First blower fan or the second blower fan are opened after remaining turned-off the 3rd Preset Time；
When detecting the supply water temperature decline, outer machine quantity of heat given up is less than load absorption heat, the first of control closed mode
Blower fan or the second blower fan are opened.
6. the control method of outer machine blower fan according to claim 2, it is characterised in that the outer machine include the first blower fan and
Second blower fan, it is described when detecting supply water temperature and reaching four preset temperatures, the step of the whole blower fans of control are closed, specific bag
Include：
When detecting supply water temperature and reaching four preset temperatures, the first blower fan of control and the second blower fan are closed；
When detecting the supply water temperature and no longer raising, outer machine quantity of heat given up is equal to load absorption heat, the first blower fan of control and
After second blower fan remains turned-off the 4th Preset Time, the first blower fan of control and/or the second blower fan are opened；
When detecting the supply water temperature decline, outer machine quantity of heat given up is less than load absorption heat, controls the first blower fan and second
Blower fan is opened.
7. the control method of outer machine blower fan according to claim 6, it is characterised in that first blower fan and the second blower fan
It is equipped with the first gear, three gears of the second gear and third gear, first gear, the second gear, third gear turn
Fast relation is：First gear ＞ the second gear ＞ third gears, the step of the blower fan of the control first and the second blower fan are opened it
Afterwards, also include：
The wind speed of first blower fan and the second blower fan is adjusted to the second gear or the first gear from third gear.
8. a kind of control device of outer machine blower fan, it is characterised in that the outer machine includes at least two blower fans, the blower fan be provided with to
Few two gears, the control device includes：
Control logic starting module, detect outer machine continuously just reaches supply water temperature less than preset value at runtime at least twice
When being shut down to highest setting value, following control logic is run；
Before supply water temperature reaches the first preset temperature, the whole blower fans of control are maintained at highest wind velocity shelves；
When detecting supply water temperature and reaching the first preset temperature, the whole blower fans of control turn down at least one gear；
When detecting supply water temperature and reaching the second preset temperature, the whole blower fans of control are adjusted to minimum wind speed shelves；
When detecting supply water temperature and reaching three preset temperatures, at least one blower fan of control is closed；
When detecting supply water temperature and reaching four preset temperatures, the whole blower fans of control are closed；
Wherein, the preset temperature ＜ highest setting temperature of the first the 3rd preset temperature ＜ of preset temperature ＜ the second preset temperature ＜ the 4th
Degree.
9. the control device of outer machine blower fan according to claim 8, it is characterised in that the control device is also included to Wen Qi
Stop module, when detecting supply water temperature and reaching highest setting temperature, control outer machine shutdown；When the outer machine is again started up, control
The whole blower fans of system are opened and are adjusted to highest wind velocity shelves.
10. a kind of constant speed Air-Cooled Heat Pump Unit, it is characterised in that the constant speed Air-Cooled Heat Pump Unit is included such as the institute of claim 8 or 9
The control device of the outer machine blower fan stated.
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| CN201611175069.3A CN106765943B (en) | 2016-12-16 | 2016-12-16 | Control method, control device and the constant speed Air-Cooled Heat Pump Unit of outer machine blower |
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| CN201611175069.3A CN106765943B (en) | 2016-12-16 | 2016-12-16 | Control method, control device and the constant speed Air-Cooled Heat Pump Unit of outer machine blower |
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