CN103335407B - Air-cooled heat-pump cold water-heating machine system and capacity output control thereof - Google Patents
Air-cooled heat-pump cold water-heating machine system and capacity output control thereof Download PDFInfo
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- CN103335407B CN103335407B CN201310233851.6A CN201310233851A CN103335407B CN 103335407 B CN103335407 B CN 103335407B CN 201310233851 A CN201310233851 A CN 201310233851A CN 103335407 B CN103335407 B CN 103335407B
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 100
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 127
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000001595 flow curve Methods 0.000 claims description 12
- 238000005057 refrigeration Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 11
- 230000015572 biosynthetic process Effects 0.000 abstract description 10
- 238000003786 synthesis reaction Methods 0.000 abstract description 10
- 238000010977 unit operation Methods 0.000 abstract description 10
- 230000007774 longterm Effects 0.000 abstract description 7
- 230000001681 protective effect Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009897 systematic effect Effects 0.000 description 2
- 206010060904 Freezing phenomenon Diseases 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
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Abstract
The open a kind of air-cooled heat-pump cold of the present invention water-heating machine system and capacity output control thereof, its method includes: obtain air-cooled heat-pump cold before and after predetermined interval the circulating water flow data of water-heating machine system；According to circulating water flow data calculate air-cooled heat-pump cold water-heating machine system ability exporting change value before and after predetermined interval；According to the ability exporting change value calculated, control air-cooled heat-pump cold the ability output valve of water-heating machine system.The present invention is when system circulating water flow changes; by obtain air-cooled heat-pump cold before and after predetermined interval the circulating water flow data of water-heating machine system; according to system circulating water flow data computing system ability exporting change value before and after predetermined interval; thus control system ability output valve; unit capacity output is carried out regulation promptly and accurately, it is to avoid long-term low discharge heavy-duty service occurs, it is to avoid generator protection occurs; increase unit operation reliability, reach the effect of synthesis energy saving.
Description
Technical field
The present invention relates to air-conditioning technical field, particularly relate to a kind of air-cooled heat-pump cold water-heating machine system and
Capacity output control.
Background technology
At present, air-cooled heat-pump cold hot water machine ability output regulation by water temperature control, when due to other reason
When causing unit circulating water flow to reduce suddenly, and unit still runs in full load, due to unit
Have little time to unload sub-load, unit leaving water temperature can be caused during refrigeration too low, at this moment evaporate temperature
Spend low, easily cause the freezing phenomenon of vaporizer；During heating operation, generator protection easily occurs
.If unit is under this state operation, unit meeting frequent start-stop for a long time, cause unit reliable
Property be deteriorated, and reduce the operation comprehensive energy efficiency of unit.
Summary of the invention
Present invention is primarily targeted at a kind of air-cooled heat-pump cold of offer water-heating machine system and ability output thereof
Control method, when system circulating water flow changes, it is achieved the timely standard to unit capacity output
Really regulation, increases unit operation reliability and synthesis energy saving effect.
In order to achieve the above object, the present invention propose a kind of air-cooled heat-pump cold the output of water-heating machine system ability
Control method, comprises the following steps:
Obtain air-cooled heat-pump cold before and after predetermined interval the circulating water flow data of water-heating machine system；
According to described circulating water flow data calculate described air-cooled heat-pump cold water-heating machine system described pre-
Determine the ability exporting change value before and after interval time；
According to the described ability exporting change value calculated, control air-cooled heat-pump cold water-heating machine system
Ability output valve.
Preferably, before and after described acquisition predetermined interval air-cooled heat-pump cold the recirculated water of water-heating machine system
The step of data on flows includes:
By effusion meter obtain air-cooled heat-pump cold before and after predetermined interval the circulating water flow of water-heating machine system
Amount data.
Preferably, described air-cooled heat-pump cold water-heating machine system use fixed frequency water pump, between described acquisition is predetermined
Before and after interval air-cooled heat-pump cold the step of circulating water flow data of water-heating machine system include:
Obtain respectively air-cooled heat-pump cold before and after predetermined interval the output determining frequency water pump of water-heating machine system
Power；
Calculate according to predetermined power versus flow curve obtain before and after predetermined interval air-cooled heat-pump cold heat
The water machine system circulating water flow data that the output of water pump is corresponding frequently surely.
Preferably, described air-cooled heat-pump cold water-heating machine system use variable frequency pump, between described acquisition is predetermined
Before and after interval air-cooled heat-pump cold the step of circulating water flow data of water-heating machine system include:
Obtain respectively air-cooled heat-pump cold before and after predetermined interval the output of variable frequency pump of water-heating machine system
Frequency；
Calculate according to predetermined frequency-flow curve obtain before and after predetermined interval air-cooled heat-pump cold heat
The circulating water flow data that the output frequency of water machine system variable frequency pump is corresponding.
Preferably, described according to circulating water flow data calculate described air-cooled heat-pump cold water-heating machine system
The step of the ability exporting change value before and after described predetermined interval includes:
Calculate respectively circulating water flow data are corresponding before and after predetermined interval air-cooled heat-pump cold hot water machine
The ability output valve of system, described ability output valve is refrigerating capacity or the heating capacity of system output；
Calculate described air-cooled heat-pump cold before and after predetermined interval the difference of ability output valve of water-heating machine system
Value, obtain described air-cooled heat-pump cold water-heating machine system ability before and after described predetermined interval
Exporting change value.
The present invention also propose a kind of air-cooled heat-pump cold water-heating machine system, including ability output control module
, described ability output control module includes:
Discharge acquiring unit, be used for obtaining before and after predetermined interval air-cooled heat-pump cold water-heating machine system
Circulating water flow data；
Computing unit, for according to described circulating water flow data calculate described air-cooled heat-pump cold hot water
Machine system ability exporting change value before and after described predetermined interval；
Output regulation and control unit, for according to the described ability exporting change value calculated, controlling air-cooled
Heat pump cold the ability output valve of water-heating machine system.
Preferably, described discharge acquiring unit, it is additionally operable to obtain predetermined interval by effusion meter
Front and back air-cooled heat-pump cold the circulating water flow data of water-heating machine system.
Preferably, described discharge acquiring unit, it is additionally operable to obtain wind before and after predetermined interval respectively
Cold-heat pump cold the output determining frequency water pump of water-heating machine system；According to predetermined power versus flow
Curve calculate obtain air-cooled heat-pump cold before and after predetermined interval water-heating machine system frequency water pump surely defeated
Go out the circulating water flow data that power is corresponding.
Preferably, described discharge acquiring unit, it is additionally operable to obtain wind before and after predetermined interval respectively
Cold-heat pump cold the output frequency of variable frequency pump of water-heating machine system；
Calculate according to predetermined frequency-flow curve obtain before and after predetermined interval air-cooled heat-pump cold heat
The circulating water flow data that the output frequency of water machine system variable frequency pump is corresponding.
Preferably, described computing unit, it is additionally operable to calculate circulating water flow before and after predetermined interval respectively
Amount air-cooled heat-pump cold corresponding to data the ability output valve of water-heating machine system, described ability output valve
Refrigerating capacity or heating capacity for system output；Calculate described air-cooled heat pump before and after predetermined interval
Cold the difference of ability output valve of water-heating machine system, obtain described air-cooled heat-pump cold hot water machine system
System ability exporting change value before and after described predetermined interval.
The present invention propose a kind of air-cooled heat-pump cold water-heating machine system and capacity output control thereof,
During the change of system circulating water flow, by obtain before and after predetermined interval air-cooled heat-pump cold hot water
The circulating water flow data of machine system, according to system circulating water flow data computing system predetermined
Ability exporting change value before and after interval time, thus control air-cooled heat-pump cold water-heating machine system
Ability output valve, carries out regulation promptly and accurately to unit capacity output, it is to avoid occur the lowest
Discharge heavy-duty service, it is to avoid high voltage protective occur, increases unit operation reliability, reaches
The effect of synthesis energy saving.
Accompanying drawing explanation
Fig. 1 be air-cooled heat-pump cold of the present invention water-heating machine system capacity output control preferred embodiment
Schematic flow sheet；
Fig. 2 be air-cooled heat-pump cold of the present invention the structural representation of water-heating machine system preferred embodiment.
In order to make technical scheme clearer, clear, make further below in conjunction with accompanying drawing
Describe in detail.
Detailed description of the invention
Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not used to
Limit
Determine the present invention.
As it is shown in figure 1, present pre-ferred embodiments propose a kind of air-cooled heat-pump cold water-heating machine system ability
Output control method, including:
Step S101, obtain air-cooled heat-pump cold before and after predetermined interval the circulating water flow of water-heating machine system
Amount data；
The present embodiment method be applicable to air-cooled heat-pump cold water-heating machine system heating operation and refrigerating operaton two kinds
Different mode of operations, can cause system circulating water flow in user's end service condition difference
During change, it is achieved the promptly and accurately regulation to the output of system unit capacity, increasing unit operation can
By property and synthesis energy saving effect.
Wherein, system unit capacity output regulates control to be controlled by discharge.
First, gather air-cooled heat-pump cold the circulating water flow data of water-heating machine system different time points.This
Embodiment is set with the time interval of collection circulating water flow data, respectively between this is predetermined
Gather before and after interval air-cooled heat-pump cold the circulating water flow data of water-heating machine system.
When specifically gathering, as a kind of embodiment, when can obtain predetermined space by effusion meter
Before and after between air-cooled heat-pump cold the circulating water flow data of water-heating machine system.
As another embodiment, it is also possible to exported by the ability gathering water pump, and then be converted into
Corresponding discharge output numerical value.Wherein:
For air-cooled heat-pump cold water-heating machine system use the situation of fixed frequency water pump, each of fixed frequency water pump
Output is to there being a discharge.
Therefore, it can to obtain respectively air-cooled heat-pump cold before and after predetermined interval water-heating machine system determine frequency
Then the output of water pump, when calculating acquisition predetermined space according to predetermined power versus flow curve
Before and after between air-cooled heat-pump cold the circulating water flow corresponding to output of water-heating machine system frequency water pump surely
Data.
Additionally, for air-cooled heat-pump cold water-heating machine system use variable frequency pump situation, variable frequency pump frequency
During rate change, the also and then change of the circulating water flow of corresponding output, the most each frequency has one
Corresponding discharge, therefore, it can to obtain respectively before and after predetermined interval air-cooled heat-pump cold heat
The output frequency of the variable frequency pump of water machine system；Then calculate according to predetermined frequency-flow curve
Obtain air-cooled heat-pump cold before and after predetermined interval the output frequency pair of water-heating machine system variable frequency pump
The circulating water flow data answered.
When practical operation, systematic master control board can be fed back to by the frequency of variable frequency pump being changed,
Follow-up can calculating according to different discharge required opens Feng Lengrebengleng hot water board
Number, thus
Reach to be changed the purpose controlling the output of air-cooled heat pump cold water function power by the frequency of variable frequency pump
。
Step S102, according to described circulating water flow data calculate described air-cooled heat-pump cold hot water machine system
System ability exporting change value before and after described predetermined interval；
Before and after getting predetermined interval time air-cooled heat-pump cold the circulating water flow number of water-heating machine system
According to rear, the air-cooled heat-pump cold that before and after calculating predetermined interval, circulating water flow data are corresponding respectively
The ability output valve of water-heating machine system, this ability output valve is refrigerating capacity or the system of system output
Heat.
Then, calculate described air-cooled heat-pump cold before and after predetermined interval the ability output of water-heating machine system
Value difference, obtain described air-cooled heat-pump cold water-heating machine system before and after described predetermined interval
Ability exporting change value.
Such as, before and after predetermined interval Δ t, the fan-out capability difference of unit is Δ Q, then can arrange+Δ
Q is the unit fan-out capability value of the required unloading of unit, and on the contrary ,-Δ Q is the required loading of unit
Unit capacity output valve.
Step S103, according to the described ability exporting change value calculated, control air-cooled heat-pump cold heat
The ability output valve of water machine system.
According to the above-mentioned required loading calculated and the ability numeric value of unloading, thus control air-cooled heat pump
Cold the increase of unlatching number of units of hot water machine and minimizing.Such as, before for predetermined interval Δ t
The fan-out capability difference of rear unit is-situation of Δ Q, then and show that actual fan-out capability is less than normal, need
Load corresponding number of units air-cooled heat-pump cold hot water machine；For machine before and after predetermined interval Δ t
The fan-out capability difference of group is the+situation of Δ Q, then show that actual fan-out capability is bigger than normal, need to unload
Carry corresponding number of units air-cooled heat-pump cold hot water machine, thus control the output of unit capacity in time, keep away
Exempt from that long-term low discharge heavy-duty service occurs, increase unit operation reliability, reach comprehensively to save
The effect of energy.
It should be noted that for the separate unit many refrigeration of machine High cooling power (or big heat heats more) system
Unit can also use above-mentioned control method to export to regulate system capability, according to the circulation of system
The change calculations of discharge obtains output capacity exporting change value, the refrigeration of varying number in unlatching unit
System or the frequency of variable frequency pump in single refrigeration system that controls carry out regulating power output, thus
Control the output of unit capacity in time, it is to avoid long-term low discharge heavy-duty service occurs, increase
Unit operation reliability, reaches the effect of synthesis energy saving.
The present embodiment passes through such scheme, when system circulating water flow changes, between being made a reservation for by acquisition
Before and after interval air-cooled heat-pump cold the circulating water flow data of water-heating machine system, circulate according to system
Water flow data calculates system ability exporting change value before and after predetermined interval, thus controls
Air-cooled heat-pump cold processed heat
The ability output valve of water machine system, carries out regulation promptly and accurately to unit capacity output, it is to avoid
Long-term low discharge heavy-duty service occur, it is to avoid high voltage protective occur, increasing unit operation can
By property, reach the effect of synthesis energy saving.
As in figure 2 it is shown, present pre-ferred embodiments propose a kind of air-cooled heat-pump cold water-heating machine system, bag
Including ability output control module, described ability output control module includes: discharge acquiring unit
201, computing unit 202 and output regulation and control unit 203, wherein:
Discharge acquiring unit 201, be used for obtaining before and after predetermined interval air-cooled heat-pump cold hot water machine
The circulating water flow data of system；
Computing unit 202, for according to described circulating water flow data calculate described air-cooled heat-pump cold
Water-heating machine system ability exporting change value before and after described predetermined interval；
Output regulation and control unit 203, for according to the described ability exporting change value calculated, controls wind
Cold-heat pump cold the ability output valve of water-heating machine system.
The present embodiment be applicable to air-cooled heat-pump cold water-heating machine system heating operation and two kinds of differences of refrigerating operaton
Mode of operation, system circulating water flow can be caused to change in user's end service condition difference
Time, it is achieved the promptly and accurately regulation to the output of system unit capacity, increase unit operation reliability
With synthesis energy saving effect.
Wherein, system unit capacity output regulates control to be controlled by discharge.
First, by discharge acquiring unit 201 gather air-cooled heat-pump cold water-heating machine system different time
The circulating water flow data of point.The present embodiment is set with the time of collection circulating water flow data
Interval, gather before and after the interval time that this is predetermined respectively air-cooled heat-pump cold the following of water-heating machine system
Ring water flow data.
When specifically gathering, as a kind of embodiment, when can obtain predetermined space by effusion meter
Before and after between air-cooled heat-pump cold the circulating water flow data of water-heating machine system.
As another embodiment, it is also possible to exported by the ability gathering water pump, and then be converted into
Corresponding discharge output numerical value.Wherein:
For air-cooled heat-pump cold water-heating machine system use the situation of fixed frequency water pump, each of fixed frequency water pump
Output is to there being a discharge.
Therefore, it can to obtain respectively air-cooled heat-pump cold before and after predetermined interval water-heating machine system determine frequency
Then the output of water pump, when calculating acquisition predetermined space according to predetermined power versus flow curve
Before and after between air-cooled heat-pump cold the circulating water flow corresponding to output of water-heating machine system frequency water pump surely
Data.
Additionally, for air-cooled heat-pump cold water-heating machine system use variable frequency pump situation, variable frequency pump frequency
Rate
During change, the also and then change of the circulating water flow of corresponding output, the most each frequency have one right
The discharge answered, therefore, it can to obtain respectively before and after predetermined interval air-cooled heat-pump cold hot water
The output frequency of the variable frequency pump of machine system；Then calculate according to predetermined frequency-flow curve and obtain
Take air-cooled heat-pump cold before and after predetermined interval the output frequency of water-heating machine system variable frequency pump corresponding
Circulating water flow data.
When practical operation, systematic master control board can be fed back to by the frequency of variable frequency pump being changed,
Follow-up can calculating according to different discharge required opens Feng Lengrebengleng hot water board
Number, thus reach to be changed by the frequency of variable frequency pump that to control air-cooled heat pump cold water function power defeated
The purpose gone out.
Before and after getting predetermined interval time air-cooled heat-pump cold the circulating water flow number of water-heating machine system
According to rear, calculate circulating water flow data pair before and after predetermined interval respectively by computing unit 202
The air-cooled heat-pump cold answered the ability output valve of water-heating machine system, it is defeated that this ability output valve is system
The refrigerating capacity gone out or heating capacity.
Then, calculate described air-cooled heat-pump cold before and after predetermined interval the ability output of water-heating machine system
Value difference, obtain described air-cooled heat-pump cold water-heating machine system before and after described predetermined interval
Ability exporting change value.
Such as, before and after predetermined interval Δ t, the fan-out capability difference of unit is Δ Q, then can arrange+Δ
Q is the unit fan-out capability value of the required unloading of unit, and on the contrary ,-Δ Q is the required loading of unit
Unit capacity output valve.
Finally by output regulation and control unit 203 according to the above-mentioned required loading calculated and the ability of unloading
Numerical value, thus control air-cooled heat-pump cold the increase of unlatching number of units of hot water machine and minimizing.Such as,
Be-the situation of Δ Q for the fan-out capability difference of unit before and after predetermined interval Δ t, then table
Bright actual fan-out capability is less than normal, need to load corresponding number of units air-cooled heat-pump cold hot water machine；For
Before and after predetermined interval Δ t, the fan-out capability difference of unit is the+situation of Δ Q, then show reality
Fan-out capability is bigger than normal, needs to unload the Feng Lengrebengleng hot water machine of corresponding number of units, thus and time control
The output of unit capacity processed, it is to avoid long-term low discharge heavy-duty service occur, increases unit fortune
Row reliability, reaches the effect of synthesis energy saving.
It should be noted that for the separate unit many refrigeration of machine High cooling power (or big heat heats more) system
Unit can also use above-mentioned control method to export to regulate system capability, according to the circulation of system
The change calculations of discharge obtains output capacity exporting change value, the refrigeration of varying number in unlatching unit
System or the frequency of variable frequency pump in single refrigeration system that controls carry out regulating power output, thus
Control the output of unit capacity in time, it is to avoid long-term low discharge heavy-duty service occurs, increase
Unit operation reliability, reaches the effect of synthesis energy saving.
The present embodiment passes through such scheme, when system circulating water flow changes, between being made a reservation for by acquisition
Before and after interval air-cooled heat-pump cold the circulating water flow data of water-heating machine system, circulate according to system
Water flow data calculates system ability exporting change value before and after predetermined interval, thus controls
Air-cooled heat-pump cold processed the ability output valve of water-heating machine system, unit capacity output is carried out timely standard
True regulation, it is to avoid long-term low discharge heavy-duty service occurs, it is to avoid high voltage protective occurs,
Increase unit operation reliability, reach the effect of synthesis energy saving.
Above are only the preferred embodiments of the present invention, not thereby limit the scope of the claims of the present invention, all
It is the equivalent structure utilizing description of the invention and accompanying drawing content to be made or flow process conversion, or directly
Or indirectly it is used in other relevant technical field, the most in like manner it is included in the patent protection of the present invention
In the range of.
Claims (8)
1. a Feng Lengrebengleng water-heating machine system capacity output control, it is characterised in that include with
Lower step:
Obtain air-cooled heat-pump cold before and after predetermined interval the circulating water flow data of water-heating machine system；
According to described circulating water flow data calculate described air-cooled heat-pump cold water-heating machine system described predetermined
Ability exporting change value before and after interval time；
According to the described ability exporting change value calculated, control air-cooled heat-pump cold the energy of water-heating machine system
Power output valve；
Wherein, described according to circulating water flow data calculate described air-cooled heat-pump cold water-heating machine system in institute
The step stating the ability exporting change value before and after predetermined interval includes:
Calculate respectively circulating water flow data are corresponding before and after predetermined interval air-cooled heat-pump cold hot water machine system
The ability output valve of system, described ability output valve is refrigerating capacity or the heating capacity of system output；
Calculate described air-cooled heat-pump cold before and after predetermined interval the difference of ability output valve of water-heating machine system
Value, obtain described air-cooled heat-pump cold water-heating machine system before and after described predetermined interval ability output become
Change value.
Method the most according to claim 1, it is characterised in that before described acquisition predetermined interval
Rear air-cooled heat-pump cold the step of circulating water flow data of water-heating machine system include:
By effusion meter obtain air-cooled heat-pump cold before and after predetermined interval the circulating water flow of water-heating machine system
Data.
Method the most according to claim 1, it is characterised in that described air-cooled heat-pump cold hot water machine system
System uses fixed frequency water pump, before and after described acquisition predetermined interval air-cooled heat-pump cold the circulation of water-heating machine system
The step of water flow data includes:
Obtain respectively air-cooled heat-pump cold before and after predetermined interval the output work determining frequency water pump of water-heating machine system
Rate；
Calculate according to predetermined power versus flow curve obtain before and after predetermined interval air-cooled heat-pump cold hot water
The machine system circulating water flow data that the output of water pump is corresponding frequently surely.
Method the most according to claim 1, it is characterised in that described air-cooled heat-pump cold hot water machine system
System uses variable frequency pump, before and after described acquisition predetermined interval air-cooled heat-pump cold the circulation of water-heating machine system
The step of water flow data includes:
Obtain respectively air-cooled heat-pump cold before and after predetermined interval the output frequency of variable frequency pump of water-heating machine system
Rate；
Calculate according to predetermined frequency-flow curve obtain before and after predetermined interval air-cooled heat-pump cold hot water
The circulating water flow data that the output frequency of machine system variable frequency pump is corresponding.
5. a Feng Lengrebengleng water-heating machine system, it is characterised in that include ability output control module,
Described ability output control module includes:
Discharge acquiring unit, for obtain air-cooled heat-pump cold before and after predetermined interval water-heating machine system
Circulating water flow data；
Computing unit, for according to described circulating water flow data calculate described air-cooled heat-pump cold hot water machine
System ability exporting change value before and after described predetermined interval；
Output regulation and control unit, for according to the described ability exporting change value calculated, controlling air-cooled heat
Pump cold the ability output valve of water-heating machine system；
Described computing unit, before and after being additionally operable to calculate predetermined interval respectively, circulating water flow data are corresponding
Air-cooled heat-pump cold the ability output valve of water-heating machine system, described ability output valve is the refrigeration of system output
Amount or heating capacity；Calculate described air-cooled heat-pump cold before and after predetermined interval the ability output of water-heating machine system
Value difference, obtain described air-cooled heat-pump cold water-heating machine system ability before and after described predetermined interval
Exporting change value.
System the most according to claim 5, it is characterised in that
Described discharge acquiring unit, is additionally operable to by air-cooled heat before and after effusion meter acquisition predetermined interval
Pump cold the circulating water flow data of water-heating machine system.
System the most according to claim 5, it is characterised in that
Described discharge acquiring unit, be additionally operable to obtain respectively before and after predetermined interval air-cooled heat-pump cold heat
The output determining frequency water pump of water machine system；Obtain according to predetermined power versus flow curve calculating between making a reservation for
Before and after interval air-cooled heat-pump cold the circulating water flow number corresponding to output of water-heating machine system frequency water pump surely
According to.
System the most according to claim 5, it is characterised in that
Described discharge acquiring unit, be additionally operable to obtain respectively before and after predetermined interval air-cooled heat-pump cold heat
The output frequency of the variable frequency pump of water machine system；
Calculate according to predetermined frequency-flow curve obtain before and after predetermined interval air-cooled heat-pump cold hot water
The circulating water flow data that the output frequency of machine system variable frequency pump is corresponding.
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| CN108759991B (en) * | 2018-06-21 | 2021-01-05 | 广东美的暖通设备有限公司 | Measurement error diagnosis method and device for sensor in air conditioning system and air conditioning system |
| CN109442774A (en) * | 2018-09-26 | 2019-03-08 | 广州市凌静制冷设备有限公司 | A kind of air-cooled Cool-water Machine for Industry group of vortex |
| CN111089333A (en) * | 2019-12-24 | 2020-05-01 | 珠海格力电器股份有限公司 | Heating, ventilating and air conditioning system and control method, device, equipment and storage medium thereof |
| CN112556203B (en) * | 2020-12-14 | 2022-07-05 | 上海林内有限公司 | Micro-bubble water heater |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201014742Y (en) * | 2007-02-08 | 2008-01-30 | 吴江 | Heat pump type water heater |
| CN201569156U (en) * | 2009-11-19 | 2010-09-01 | 苏州大学 | Air source heat pump water heater |
| CN101825342A (en) * | 2010-05-18 | 2010-09-08 | 上海天剑电磁技术有限公司 | Water temperature control method of instant heating type electromagnetic induction water heater |
| JP2012082978A (en) * | 2010-10-07 | 2012-04-26 | Hitachi Appliances Inc | Heat pump water heater |
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