CN105157087B - The control method and device of source pump - Google Patents
The control method and device of source pump Download PDFInfo
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- CN105157087B CN105157087B CN201510666365.2A CN201510666365A CN105157087B CN 105157087 B CN105157087 B CN 105157087B CN 201510666365 A CN201510666365 A CN 201510666365A CN 105157087 B CN105157087 B CN 105157087B
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Abstract
The invention discloses a kind of control method and device of source pump.Wherein, the control method includes:Detect the supply water temperature of current operating unit in heat pump;The unit quantity of supply water temperature and current operating unit based on current operating unit determines the shutdown unit in heat pump;After the preset time period of compressor emergency shutdown first is shut down, the average supply water temperature of remaining unit and average return water temperature in heat pump are detected;Average supply water temperature and average return water temperature based on remaining unit determine whether to open standby unit.The present invention solves the technical problem of the regulating power difference of the end load change to unit, realizes the stability and reliability of raising machine group end heating, and the effect of the level of comfort of increase user.
Description
Technical field
The present invention relates to Mechanical course field, in particular to a kind of control method and device of source pump.
Background technology
As the northern heating market demand increasingly increases, the importance of environmental protection and energy saving is recognized by people, and portion of government
Door for environmental improvement resolution, for heating application heat pump product technology it is also increasing and ripe.
At present, the heat pump heating product of in the market is mainly to determine based on frequency product, for end load susceptibility very
It is low.Specifically, determine frequency heat pump unit for more, due to the unit application be end heating start-up and shut-down control mode,
It is much the start stop mode for directly continuing to use single unit use, i.e., meets to shut down/open into water or leaving water temperature once detecting
Machine condition, then more heat pumps are unified is shut down or starts shooting, and in more units starts and shutdown, every unit is opened or stopped
Time interval only is a steady state value.
By above-mentioned start-up and shut-down control mode, because unit unifies start-up and shut-down control, surplus is not adjusted, its end heating effect
Fruit, cold and hot difference variation are larger;It is last after more units are opened in the case where end load is small using unified start-up and shut-down control
End quickly reaches halt condition, it may appear that frequent start-stop.In general, more determine frequency heat pump be used for heating start and stop comfortableness be
A great problem.
Wherein, the end load of heat pump refers to the air parameter of interior maintaining design parameter state, in the unit interval
The heat that need to be provided to building.
The problem of regulating power difference changed for the above-mentioned end load to unit, effective solve not yet is proposed at present
Scheme.
The content of the invention
The embodiments of the invention provide a kind of control method and device of source pump, at least to solve the end to unit
Load the technical problem of the regulating power difference of change.
One side according to embodiments of the present invention, there is provided a kind of control method of source pump, the control method bag
Include:Detect the supply water temperature of current operating unit in heat pump;Supply water temperature and current operation based on current operating unit
The unit quantity of unit determines the shutdown unit in heat pump;After the preset time period of compressor emergency shutdown first is shut down, detection
The average supply water temperature of remaining unit and average return water temperature in heat pump;Average supply water temperature peace based on remaining unit
Equal return water temperature determines whether to open standby unit.
Further, the unit quantity of supply water temperature and current operating unit based on current operating unit determines heat pump system
Shutdown unit in system includes:Judge whether the average supply water temperature of current operating unit in heat pump is more than or equal to the first temperature
Spend threshold value;If the average supply water temperature of current operating unit is more than or equal to the first temperature threshold, based on unit quantity and each
The unit supply water temperature of current operating unit determines to shut down unit;If the average supply water temperature of current operating unit is less than the first temperature
Threshold value is spent, then controls current operating unit to continue to run with.
Further, the unit supply water temperature based on unit quantity and each current operating unit determines to shut down unit bag
Include:Judge whether unit quantity is more than or equal to predetermined number;If unit quantity is more than or equal to predetermined number, obtain each current
The unit supply water temperature of operating unit, each unit supply water temperature is contrasted, in the unit collection of the unit supply water temperature with maximum
A current operating unit is determined in conjunction to shut down unit;If unit quantity is less than predetermined number, all current operations are controlled
Compressor emergency shutdown.
Further, it is determined that after shutdown unit in heat pump, method also includes:When shutting down compressor emergency shutdown,
Obtain the average return water temperature of current operating unit;Average supply water temperature and average return water temperature based on remaining unit determine
The no standby unit of unlatching includes:The average return water temperature of average supply water temperature, remaining unit based on remaining unit and current fortune
The average return water temperature of row unit determines whether to open standby unit.
Further, the average supply water temperature based on remaining unit, the average return water temperature of remaining unit and current operation
The average return water temperature of unit determines whether that opening standby unit includes:Judge the average confession of current operating unit in heat pump
Whether coolant-temperature gage is less than the first temperature threshold;If the average supply water temperature of current operating unit is less than the first temperature in heat pump
Threshold value, then temperature variation of the average return water temperature of remaining unit in the second preset time period is obtained, based on current operation
The average return water temperature and temperature variation of unit determine whether to open standby unit;If current operating unit in heat pump
Average supply water temperature is not less than the first temperature threshold, it is determined that is not turned on standby unit.
Further, average return water temperature and temperature variation based on current operating unit determine whether to open standby machine
Group includes:If the average return water temperature of remaining unit is less than or equal to second temperature threshold value, judge whether temperature variation is less than
Change threshold, wherein, second temperature threshold value is less than or equal to the average return water temperature of current operating unit;If temperature variation is less than
Change threshold, then a unit is opened in control at random in standby unit, if temperature variation is not less than change threshold, it is determined that
It is not turned on standby unit.
Another aspect according to embodiments of the present invention, additionally provide a kind of control device of source pump, the control device
Including:First detection module, for detecting the supply water temperature of current operating unit in heat pump;First determining module, is used for
The unit quantity of supply water temperature and current operating unit based on current operating unit determines the shutdown unit in heat pump;The
Two detection modules, for after the preset time period of compressor emergency shutdown first is shut down, remaining unit to be averaged in detection heat pump
Supply water temperature and average return water temperature;Second determining module, for the average supply water temperature based on remaining unit and average backwater
Temperature determines whether to open standby unit.
Further, the first determining module includes:First judge module, for judging current operating unit in heat pump
Average supply water temperature whether be more than or equal to the first temperature threshold;First determination sub-module, if for the flat of current operating unit
Equal supply water temperature is more than or equal to the first temperature threshold, then the unit supply water temperature based on unit quantity and each current operating unit
It is determined that shut down unit;First control module, if the average supply water temperature for current operating unit is less than the first temperature threshold,
Current operating unit is controlled to continue to run with.
Further, the first determination sub-module includes:Second judge module, for judging whether unit quantity is more than or equal to
Predetermined number;First processing module, if being more than or equal to predetermined number for unit quantity, obtain each current operating unit
Unit supply water temperature, each unit supply water temperature is contrasted, one is determined in the unit set of the unit supply water temperature with maximum
The current operating unit of platform is shutdown unit;Second control module, if being less than predetermined number for unit quantity, control all work as
Preceding operating unit is shut down.
Further, the device also includes:Acquisition module, for it is determined that after shutdown unit in heat pump,
When shutting down compressor emergency shutdown, the average return water temperature of current operating unit is obtained;Second determining module also includes second and determines submodule
Block, for the average supply water temperature based on remaining unit, the average return water temperature of remaining unit and being averaged for current operating unit
Return water temperature determines whether to open standby unit.
Further, the second determination sub-module includes:3rd judge module, for judging current operation machine in heat pump
Whether the average supply water temperature of group is less than the first temperature threshold;Second processing module, if for currently running machine in heat pump
The average supply water temperature of group is less than the first temperature threshold, then obtains the average return water temperature of remaining unit in the second preset time period
Interior temperature variation, average return water temperature and temperature variation based on current operating unit determine whether to open standby machine
Group;3rd determining module, if the average supply water temperature for current operating unit in heat pump is not less than the first temperature threshold,
Then determine to be not turned on standby unit.
Further, Second processing module includes:4th judge module module, if the average backwater temperature for remaining unit
Degree is less than or equal to second temperature threshold value, then judges whether temperature variation is less than change threshold, wherein, second temperature threshold value is less than
Equal to the average return water temperature of current operating unit;3rd control module, if being less than change threshold for temperature variation, control
Make and open a unit at random in standby unit, the 4th determining module, if being not less than change threshold for temperature variation,
It is determined that it is not turned on standby unit.
In embodiments of the present invention, the supply water temperature of current operating unit in heat pump and current operating unit are passed through
Unit quantity determines the shutdown unit of heat pump, after the first preset time period is shut down, by detecting in heat pump
The average supply water temperature of remaining unit determines whether to open standby unit with average return water temperature, so as to according to heat pump system
The end load situation of change of the unit of operation in system, to control the start and stop situation for determining frequency unit, avoid all unit systems
Start and stop excessively frequently phenomenon caused by one start and stop, the regulating power difference for solving end load change to unit are asked
Topic, the regulating power for improving and changing to the end load of unit is realized, improve the stability of machine group end heating and reliable
Property, add the level of comfort of user.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is a kind of flow chart of the control method of source pump according to embodiments of the present invention;
Fig. 2 is a kind of flow chart of the control method of optional source pump according to embodiments of the present invention;
Fig. 3 is a kind of schematic diagram of the control device of source pump according to embodiments of the present invention.
Embodiment
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, it should all belong to the model that the present invention protects
Enclose.
It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, "
Two " etc. be for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so use
Data can exchange in the appropriate case, so as to embodiments of the invention described herein can with except illustrating herein or
Order beyond those of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that cover
Cover it is non-exclusive include, be not necessarily limited to for example, containing the process of series of steps or unit, method, system, product or equipment
Those steps or unit clearly listed, but may include not list clearly or for these processes, method, product
Or the intrinsic other steps of equipment or unit.
According to embodiments of the present invention, there is provided a kind of embodiment of the control method of source pump, it is necessary to explanation,
The step of flow of accompanying drawing illustrates can perform in the computer system of such as one group computer executable instructions, also,
, in some cases, can be with different from shown in order execution herein although showing logical order in flow charts
The step of going out or describing.
Fig. 1 is a kind of flow chart of the control method of source pump according to embodiments of the present invention, as shown in figure 1, the control
Method processed comprises the following steps:
Step S102, detect the supply water temperature of current operating unit in heat pump.
Step S104, the unit quantity of supply water temperature and current operating unit based on current operating unit determine heat pump system
Shutdown unit in system.
Step S106, after the preset time period of compressor emergency shutdown first is shut down, remaining unit is flat in detection heat pump
Equal supply water temperature and average return water temperature.
Step S108, average supply water temperature and average return water temperature based on remaining unit determine whether to open standby machine
Group.
Using the above embodiment of the present invention, pass through the supply water temperature of current operating unit in heat pump and current operation machine
The unit quantity of group determines the shutdown unit of heat pump, after the first preset time period is shut down, by detecting heat pump
In remaining unit average supply water temperature and average return water temperature determine whether to open standby unit, so as to according to heat
The water supply of current operating unit in pumping system and return water temperature situation of change, namely according to unit end load situation of change,
To control the start and stop situation for determining frequency unit, avoid all units and unify caused by start and stop start and stop excessively frequently phenomenon, solution
The problem of regulating power difference changed to the end load of unit of having determined, realize the tune for improving and changing to the end load of unit
Save power so that the allowance regulation of start and stop can be carried out according to load variations by determining frequency heat pump, so as to improve machine group end heating
Stability and reliability, add the level of comfort of user.
Specifically, the remaining unit in above-described embodiment is the current operation machine for not including shutting down unit in heat pump
Group.
Alternatively, the unit quantity of supply water temperature and current operating unit based on current operating unit determines heat pump
In shutdown unit include:Judge whether the average supply water temperature of current operating unit in heat pump is more than or equal to the first temperature
Threshold value;If the average supply water temperature of current operating unit is more than or equal to the first temperature threshold, based on unit quantity and it is each ought
The unit supply water temperature of preceding operating unit determines to shut down unit;If the average supply water temperature of current operating unit is less than the first temperature
Threshold value, then current operating unit is controlled to continue to run with.
In the above-described embodiments, it is warm by the average supply water temperature and first that judge the current operating unit in heat pump
The relation of threshold value is spent to determine to shut down unit, specifically, if average supply water temperature is more than or equal to the first temperature threshold, then passes through machine
The unit supply water temperature of group quantity and each current operating unit further determines that the shutdown situation of unit, if the average temperature that supplies water
Degree is less than the first temperature threshold, then controls current operating unit to continue to run with, without the shutdown operation of unit, and return to judgement
The average supply water temperature of current operating unit in heat pump and the relation of the first temperature threshold, again by the temperature of unit
Determine whether unit shuts down with the concrete condition of quantity.Using above-described embodiment, can first judge when controlling compressor emergency shutdown
The unit for first reaching average supply water temperature and unit quantity term is first shut down, and is then judged whether also to need to continue to stop other
Unit, so as to realize the adjustable effect of heating allowance before compressor emergency shutdown.
Alternatively, the unit supply water temperature based on unit quantity and each current operating unit determines that shutting down unit includes:
Judge whether unit quantity is more than or equal to predetermined number;If unit quantity is more than or equal to predetermined number, each current fortune is obtained
The unit supply water temperature of row unit, each unit supply water temperature is contrasted, in the unit set of the unit supply water temperature with maximum
It is middle to determine a current operating unit to shut down unit;If unit quantity is less than predetermined number, all current operation machines are controlled
Group is shut down.
In the above-described embodiments, after the supply water temperature of current operating unit in detecting heat pump, first judge current
Whether the average supply water temperature of operating unit meets more than or equal to this condition of the first temperature threshold;If meet the condition, then
Judge whether unit quantity meets to be more than or equal to predetermined number;If unit quantity is more than or equal to predetermined number, with maximum
Unit supply water temperature unit set in determine current operating unit for shutdown unit;If unit quantity is less than present count
Amount, then all current operating units shutdown of heat pump control.If average supply water temperature is less than the first temperature threshold, control is worked as
Preceding operating unit continues to run with.It is flat based on the remaining unit detected after the preset time period of compressor emergency shutdown first is shut down
Equal supply water temperature and average return water temperature determine whether to open standby unit.Pass through above-described embodiment, it is possible to achieve according to current
Operating unit operational factor (including:Unit quantity, average supply water temperature and average return water temperature) more flexibly judge
The start and stop of unit.
Alternatively, it is determined that after shutdown unit in heat pump, this method also includes:When shutting down compressor emergency shutdown,
Obtain the average return water temperature of current operating unit;Average supply water temperature and average return water temperature based on remaining unit determine
The no standby unit of unlatching includes:The average return water temperature of average supply water temperature, remaining unit based on remaining unit and current fortune
The average return water temperature of row unit determines whether to open standby unit.
In the above-described embodiments, it is determined that after shutdown unit in heat pump, heat pump shuts down unit in control
While shutdown, the average return water temperature of current operating unit is obtained, and the remaining unit after the shutdown based on heat pump
Average supply water temperature and average return water temperature determine to open the situation of standby unit.By above-described embodiment, basis can be reached
The temperature parameter of unit in heat pump determines the need for opening standby unit, namely heat pump can be according to its end
The situation of end load (load) controls the opening of unit, so as to avoid uniformly opening in end load (load) step-down
All units are opened, and the problem of the cold and hot difference variation brought is excessive, realize and the varying duty for determining frequency unit is controlled, adopt end
Warm more stable, heating user feels more comfortable.
Specifically, the unit quantity of the remaining unit in above-described embodiment is the machine of the current operating unit in heat pump
Group quantity subtracts the unit quantity for shutting down unit.The unit quantity of standby unit is total unit number of all units in heat pump
Amount subtracts the unit quantity of current operating unit, and standby unit can include shutting down unit.
Alternatively, the average supply water temperature based on remaining unit, remaining unit average return water temperature and currently run machine
The average return water temperature of group determines whether that opening standby unit includes:Judge the average water supply of current operating unit in heat pump
Whether temperature is less than the first temperature threshold;If the average supply water temperature of current operating unit is less than the first temperature threshold in heat pump
Value, then obtain temperature variation of the average return water temperature of remaining unit in the second preset time period, based on current operation machine
The average return water temperature and temperature variation of group determine whether to open standby unit;If current operating unit is flat in heat pump
Equal supply water temperature is not less than the first temperature threshold, it is determined that is not turned on standby unit.
In the above-described embodiments, in supply water temperature and the machine of current operating unit based on the current operating unit detected
After group quantity determines the shutdown unit in heat pump, the preset time period of compressor emergency shutdown first is shut down, then detects remaining machine
Group average supply water temperature and average return water temperature, then judge current operating unit in heat pump average supply water temperature whether
Meet the condition less than the first temperature threshold;If meeting the conditional average supply water temperature, based on the current operation machine got
The average return water temperature and temperature variation of group determine whether to open standby unit;If average supply water temperature is unsatisfactory for this
Part, it is determined that be not turned on standby unit.Using above-described embodiment, when heat pump controls and opens standby unit, by every
After opening a standby unit, the temperature rise (i.e. temperature variation) of the return water temperature of current operating unit is judged, according to temperature rise
The speed for the speed that (i.e. temperature variation) increases judges whether to continue on other units in standby unit, so as to realize
The unlatching situation of unit is flexibly determined according to the temperature variations of current operating unit, enables to determine frequency heat pump to reach basis
The purpose for the allowance regulation that load boots up.
Alternatively, average return water temperature and temperature variation based on current operating unit determine whether to open standby unit
Including:If the average return water temperature of remaining unit is less than or equal to second temperature threshold value, judges whether temperature variation is less than and become
Change threshold value, wherein, second temperature threshold value is less than or equal to the average return water temperature of current operating unit;Become if temperature variation is less than
Change threshold value, then a unit is opened in control at random in standby unit, if temperature variation is not less than change threshold, it is determined that no
Open standby unit.
In the above-described embodiments, in heat pump is detected current operating unit supply water temperature, and be based on the water supply
Temperature and the unit quantity of current operating unit determine to shut down unit;After the preset time period of compressor emergency shutdown first is shut down, inspection
The average supply water temperature of remaining unit and average return water temperature in calorimetric pumping system;Judging the average supply water temperature detected is
It is no to be less than the first temperature threshold;If the average supply water temperature is less than the first temperature threshold, the average backwater of remaining unit is obtained
Temperature variation of the temperature in the second preset time period, if the average return water temperature of remaining unit is less than or equal to second temperature threshold
Value, then judge whether temperature variation is less than change threshold;If temperature variation is less than change threshold, control in standby unit
In at random open a unit, if temperature variation is not less than change threshold, it is determined that be not turned on standby unit.If heat pump
In the average supply water temperature of current operating unit be not less than the first temperature threshold, then also determination is not turned on standby unit.By upper
Embodiment is stated, can be according to the height of the return water temperature of current operating unit come the effectively regulation to unit start.Avoid
Unit unlatching is uniformly controlled when unit end load is smaller, and unit end load quickly increases and reaches shutdown bar quickly
Part, the problem of caused unit frequent start-stop, and then improve reliability of operation.
In an optional embodiment, as shown in Fig. 2 can be achieved by the steps of start to source pump and
The control of shutdown.
Step S201:Detect the supply water temperature of current operating unit in heat pump.
Specifically, in heat pump, more stable operation of unit, can by the temperature sensor on every unit come
Acquisition testing supply water temperature, it can be gathered in real time, the time interval of collection can be 3 seconds to 5 seconds.
Step S202:Judge whether the supply water temperature of current operating unit is more than the first temperature threshold.If so, then perform step
Rapid S203, if it is not, then controlling current operating unit to continue to run with, and return and perform step S201.
Specifically, the average supply water temperature T of the current operating unit in heat pump ought be detected in real timeIt is average to supply waterMore than etc.
In the first temperature threshold TIf(i.e. TIt is average to supply water≥TIf), then judge the unit quantity n of current operating unit.If unit quantity n is small
In predetermined number N (i.e. n<N), then all current operating unit is out of service for control;If unit quantity n is not less than present count
N (i.e. n >=N) is measured, then enters and judges in next step (i.e. step S203).
Step S203:Judge whether the unit quantity of current operating unit is more than or equal to predetermined number.If so, then perform step
Rapid S204, if it is not, then performing step S205.
Step S204:After the preset time period of compressor emergency shutdown first is shut down, the unit for obtaining each current operating unit supplies
Coolant-temperature gage, each unit supply water temperature is contrasted, one is determined in the unit set of the unit supply water temperature with maximum currently
Operating unit is shutdown unit.
Specifically, if the unit quantity n of current operating unit is more than or equal to predetermined number N (i.e. n >=N), contrast respectively when
The unit supply water temperature of preceding operating unit, a unit supply water temperature highest unit is taken to be shut down at random, i.e. TFor m=max
(TFor) unit.The average return water temperature T of all units (including the shutdown unit) when recording this compressor emergency shutdown simultaneouslyReturn 0.Its
In, there can be the unit supply water temperature of more units while reach peak, then randomly select one wherein and shut down.
Step S205:All current operating units are controlled to shut down.
Step S206:After the preset time period of compressor emergency shutdown first is shut down, remaining unit is flat in detection heat pump
Equal supply water temperature and average return water temperature.
Specifically, after the preset time period of compressor emergency shutdown first (such as X seconds) is shut down, heat pump can be detected by sensor
The average supply water temperature and average return water temperature of remaining unit in system after compressor emergency shutdown.
Step S207:Judge whether the average supply water temperature of current operating unit in heat pump is less than the first temperature threshold
Value;If so, step S208 is then performed, if it is not, then performing step S201.
Specifically, the average supply water temperature T that contrast judges current operating unit in heat pump is continuedIt is average to supply waterWith the first temperature
Spend threshold value TIfSize.If so, i.e. TIt is average to supply water< TIf, then into next step step S208 judgement;If it is not, i.e. TIt is average to supply water≥TIf,
Then return to execution step S201 and re-start TIt is average to supply waterJudgement.
Step S208:Obtain temperature variation of the average return water temperature of remaining unit in the second preset time period.
Specifically, the average return water temperature T of remaining unit can be obtained by sensor and processorAverage backwaterIt is pre- second
If the average return water temperature temperature rise δ (i.e. temperature variation δ) in the period (such as in the Y seconds).
Step S209:Judge that the average return water temperature of remaining unit is less than or equal to second temperature threshold value.If so, then perform step
Rapid S210, step S201 is performed if it is not, then returning, that is, obtains the supply water temperature of current operating unit, and rejudge current fortune
The average supply water temperature of row unit and the relation of the first temperature threshold.
Specifically, the average return water temperature T of remaining unit is judgedAverage backwaterWhether second temperature threshold value (T is less than or equal toReturn 0-△
T), as average return water temperature TAverage backwaterLess than or equal to second temperature threshold value (TReturn 0- △ T), i.e. TAverage backwater≤TReturn 0- △ T, then under entering
One step S210 judgement.As average return water temperature TAverage backwaterMore than second temperature threshold value (TReturn 0- △ T), i.e. TAverage backwater> TReturn 0-
△ T, then return and perform step S201, obtain the supply water temperature of current operating unit, and rejudge the flat of current operating unit
The relation of equal supply water temperature and the first temperature threshold.
Step S210:Judge whether temperature variation is less than change threshold, wherein, second temperature threshold value is less than or equal to current
The average return water temperature of operating unit;If so, then performing step S211, and return and perform S201, step is performed if it is not, then returning
S201。
Specifically, judge whether average return water temperature temperature rise δ (i.e. temperature variation) is less than change threshold (T0).If
In two preset time periods (such as in the Y seconds), average return water temperature temperature rise δ (i.e. temperature variation) is not less than change threshold (T0), i.e. δ
≥T0, then return to execution step S201 and the average supply water temperature of current operating unit judged again;It is if default second
In period (such as in the Y seconds), average return water temperature temperature rise δ (i.e. temperature variation) is less than change threshold (T0), i.e. δ < T0, then hold
Row step S211, random unlatching one is standby, then returns again to and performs step S201, obtains the water supply temperature of current operating unit
Degree, and rejudge the average supply water temperature of current unit and the relation of the first temperature threshold.
Step S211:A unit is opened in control at random in standby unit.
Using above-described embodiment, more units can be realized by detecting the return water temperature and supply water temperature of more units
Output regulation is carried out according to its end load situation, realizes varying duty demand for control, wherein, when shutting down, first judge first to reach
The first shutdown of halt condition, then carry out judging whether to also need to continue to shut down other units, realize heating allowance before shutting down
The regulation of controllability.And in start, after one standby unit of every unlatching, judge that the temperature rise of return water temperature is (i.e. flat
The variable quantity of equal return water temperature), judge whether to continue on according to the speed of temperature rise speed (i.e. variable quantity pace of change) other
Standby unit.Pass through above-described embodiment, it is possible to achieve determine the regulation that frequency heat pump carries out start and stop allowance according to its unit end load;
The phenomenon of the frequent start-stop of unit can be avoided to occur simultaneously, so as to improve the operational reliability of heat pump unit.
According to embodiments of the present invention, there is provided a kind of device embodiment of the control device of source pump, as shown in figure 3,
The control device includes:First detection module 10, the first determining module 30, the second detection module 50 and the second determining module
70。
First detection module 10, for detecting the supply water temperature of current operating unit in heat pump.
First determining module 30, the unit quantity for the supply water temperature based on current operating unit and current operating unit
Determine the shutdown unit in heat pump.
Second detection module 50, for after the preset time period of compressor emergency shutdown first is shut down, detecting in heat pump and remaining
The average supply water temperature and average return water temperature of remaining unit.
Second determining module 70, determine whether out for the average supply water temperature based on remaining unit and average return water temperature
Open standby unit.
Using the above embodiment of the present invention, pass through the supply water temperature of current operating unit in heat pump and current operation machine
The unit quantity of group determines the shutdown unit of heat pump, after the first preset time period is shut down, by detecting heat pump
In remaining unit average supply water temperature and average return water temperature determine whether to open standby unit, so as to according to heat
The end load situation of change of the unit of operation in pumping system, to control the start and stop situation for determining frequency unit, it is organic to avoid institute
Start and stop excessively frequently phenomenon caused by the unified start and stop of group, solves the regulating power difference of end load change to unit
Problem, the regulating power for improving and changing to the end load of unit is realized, and determine frequency heat pump and start and stop allowance is carried out according to load
Regulation, and the stability and reliability of machine group end heating are improved, add the level of comfort of user.
Alternatively, the first determining module includes:First judge module, the first determination sub-module and the first control module.
First judge module, for judging whether the average supply water temperature of current operating unit in heat pump is more than or equal to
First temperature threshold.
First determination sub-module, if the average supply water temperature for current operating unit is more than or equal to the first temperature threshold,
Unit supply water temperature then based on unit quantity and each current operating unit determines to shut down unit.
First control module, if the average supply water temperature for current operating unit is less than the first temperature threshold, control
Current operating unit continues to run with.
Using above-described embodiment, can first judge first to reach average supply water temperature and unit number when controlling compressor emergency shutdown
The unit of amount condition is first shut down, and is then judged whether also to need to continue to stop other units, so as to adopt before realizing compressor emergency shutdown
The adjustable effect of warm allowance.
Alternatively, the first determination sub-module includes:Second judge module, first processing module and the second control module.
Second judge module, for judging whether unit quantity is more than or equal to predetermined number.
First processing module, if being more than or equal to predetermined number for unit quantity, obtain each current operating unit
Unit supply water temperature, each unit supply water temperature is contrasted, one is determined in the unit set of the unit supply water temperature with maximum
The current operating unit of platform is shutdown unit.
Second control module, if being less than predetermined number for unit quantity, all current operating units are controlled to shut down.
In the above-described embodiments, after the supply water temperature of current operating unit in detecting heat pump, first judge current
Whether the average supply water temperature of operating unit meets more than or equal to this condition of the first temperature threshold;If meet the condition, then
Judge whether unit quantity meets to be more than or equal to predetermined number;If unit quantity is more than or equal to predetermined number, with maximum
Unit supply water temperature unit set in determine current operating unit for shutdown unit;If unit quantity is less than present count
Amount, then all current operating units shutdown of heat pump control.If average supply water temperature is less than the first temperature threshold, control is worked as
Preceding operating unit continues to run with.It is flat based on the remaining unit detected after the preset time period of compressor emergency shutdown first is shut down
Equal supply water temperature and average return water temperature determine whether to open standby unit.Pass through above-described embodiment, it is possible to achieve according to current
Operating unit operational factor (including:Unit quantity, average supply water temperature and average return water temperature) more flexibly judge
The start and stop of unit.
Alternatively, the control device also includes acquisition module, for it is determined that after shutdown unit in heat pump,
When shutting down compressor emergency shutdown, the average return water temperature of current operating unit is obtained;Second determining module also includes second and determines submodule
Block, for the average supply water temperature based on remaining unit, the average return water temperature of remaining unit and being averaged for current operating unit
Return water temperature determines whether to open standby unit.
In the above-described embodiments, it is determined that after shutdown unit in heat pump, heat pump shuts down unit in control
While shutdown, the average return water temperature of the current all units of acquisition, and the remaining unit after the shutdown based on heat pump
Average supply water temperature and average return water temperature determine to open the situation of standby unit.By above-described embodiment, basis can be reached
The temperature parameter of unit in heat pump determines the need for opening standby unit, namely heat pump can be according to its end
The situation of end load (load) controls the opening of unit, so as to avoid uniformly opening in end load (load) step-down
All units are opened, and the problem of the cold and hot difference variation brought is excessive, realize and the varying duty for determining frequency unit is controlled, adopt end
Warm more stable, heating user feels more comfortable.
Alternatively, the second determination sub-module includes:3rd judge module, Second processing module and the 3rd determining module.
3rd judge module, for judging whether the average supply water temperature of current operating unit in heat pump is less than first
Temperature threshold.
Second processing module, if the average supply water temperature for current operating unit in heat pump is less than the first temperature threshold
Value, then obtain temperature variation of the average return water temperature of remaining unit in the second preset time period, based on current operation machine
The average return water temperature and temperature variation of group determine whether to open standby unit.
3rd determining module, if the average supply water temperature for current operating unit in heat pump is not less than the first temperature
Threshold value, it is determined that be not turned on standby unit.
In the above-described embodiments, in supply water temperature and the machine of current operating unit based on the current operating unit detected
After group quantity determines the shutdown unit in heat pump, the preset time period of compressor emergency shutdown first is shut down, then detects remaining machine
Group average supply water temperature and average return water temperature, then judge current operating unit in heat pump average supply water temperature whether
Meet the condition less than the first temperature threshold;If meeting the conditional average supply water temperature, based on the current operation machine got
The average return water temperature and temperature variation of group determine whether to open standby unit;If average supply water temperature is unsatisfactory for this
Part, it is determined that be not turned on standby unit.Using above-described embodiment, when heat pump controls and opens standby unit, by every
After opening a standby unit, the temperature rise (i.e. temperature variation) of the return water temperature of current operating unit is judged, according to temperature rise
The speed for the speed that (i.e. temperature variation) increases judges whether to continue on other units in standby unit, so as to realize
The unlatching situation of unit is flexibly determined according to the temperature variations of current operating unit, reach determine frequency heat pump can be according to negative
The purpose for the allowance regulation that lotus is opened.
Alternatively, Second processing module includes:4th judge module, the 3rd control module and the 4th determining module.
4th judge module, if the average return water temperature for remaining unit is less than or equal to second temperature threshold value, judge
Whether temperature variation is less than change threshold, wherein, second temperature threshold value is less than or equal to the average backwater temperature of current operating unit
Degree.
3rd control module, if being less than change threshold for temperature variation, control is opened at random in standby unit
One unit.
4th determining module, if being not less than change threshold for temperature variation, it is determined that be not turned on standby unit.
In the above-described embodiments, in heat pump is detected current operating unit supply water temperature, and be based on the water supply
Temperature and the unit quantity of current operating unit determine to shut down unit;After the preset time period of compressor emergency shutdown first is shut down, inspection
The average supply water temperature of remaining unit and average return water temperature in calorimetric pumping system;Judging the average supply water temperature detected is
It is no to be less than the first temperature threshold;If the average supply water temperature is less than the first temperature threshold, the average backwater of remaining unit is obtained
Temperature variation of the temperature in the second preset time period, if the average return water temperature of remaining unit is less than or equal to second temperature threshold
Value, then judge whether temperature variation is less than change threshold;If temperature variation is less than change threshold, control in standby unit
In at random open a unit, if temperature variation is not less than change threshold, it is determined that be not turned on standby unit.If heat pump
In the average supply water temperature of current operating unit be not less than the first temperature threshold, then also determination is not turned on standby unit.By upper
State embodiment, it is possible to achieve more units carry out Unit Commitment allowance regulation according to its end load situation, so as to meet to machine
The demand of group end varying duty control, while the problem of avoid being uniformly controlled the unit frequent start-stop that Unit Commitment is brought, and then
Improve reliability of operation.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
In the above embodiment of the present invention, the description to each embodiment all emphasizes particularly on different fields, and does not have in some embodiment
The part of detailed description, it may refer to the associated description of other embodiment.
In several embodiments provided herein, it should be understood that disclosed technology contents, others can be passed through
Mode is realized.Wherein, device embodiment described above is only schematical, such as the division of the unit, Ke Yiwei
A kind of division of logic function, can there is an other dividing mode when actually realizing, for example, multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored, or does not perform.Another, shown or discussed is mutual
Between coupling or direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some interfaces, unit or module
Connect, can be electrical or other forms.
The unit illustrated as separating component can be or may not be physically separate, show as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On unit.Some or all of unit therein can be selected to realize the purpose of this embodiment scheme according to the actual needs.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.Above-mentioned integrated list
Member can both be realized in the form of hardware, can also be realized in the form of SFU software functional unit.
If the integrated unit is realized in the form of SFU software functional unit and is used as independent production marketing or use
When, it can be stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially
The part to be contributed in other words to prior art or all or part of the technical scheme can be in the form of software products
Embody, the computer software product is stored in a storage medium, including some instructions are causing a computer
Equipment (can be personal computer, server or network equipment etc.) perform each embodiment methods described of the present invention whole or
Part steps.And foregoing storage medium includes:USB flash disk, read-only storage (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic disc or CD etc. are various can be with store program codes
Medium.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (12)
- A kind of 1. control method of source pump, it is characterised in that including:Detect the supply water temperature of current operating unit in heat pump;The unit quantity of supply water temperature and the current operating unit based on the current operating unit determines the heat pump system Shutdown unit in system;After the shutdown preset time period of compressor emergency shutdown first, the average water supply of remaining unit in the heat pump is detected Temperature and average return water temperature;Average supply water temperature and the average return water temperature based on the remaining unit determine whether to open standby unit.
- 2. control method according to claim 1, it is characterised in that supply water temperature based on the current operating unit and The unit quantity of the current operating unit determines that the shutdown unit in the heat pump includes:Judge whether the average supply water temperature of current operating unit in the heat pump is more than or equal to the first temperature threshold;If the average supply water temperature of the current operating unit is more than or equal to first temperature threshold, based on the unit number The unit supply water temperature of amount and each current operating unit determines the shutdown unit;If the average supply water temperature of the current operating unit is less than first temperature threshold, the current operation machine is controlled Group continues to run with.
- 3. control method according to claim 2, it is characterised in thatUnit supply water temperature based on the unit quantity and each current operating unit determines that the shutdown unit includes: Judge whether the unit quantity is more than or equal to predetermined number;If the unit quantity is more than or equal to the predetermined number, obtain The unit supply water temperature of each current operating unit is taken, each unit supply water temperature is contrasted, in the institute with maximum State and determine that a current operating unit is the shutdown unit in the unit set of unit supply water temperature;Methods described also includes:If the unit quantity is less than the predetermined number, all current operating units are controlled Shut down.
- 4. control method according to claim 1, it is characterised in thatIt is determined that after shutdown unit in the heat pump, the control method also includes:In the shutdown compressor emergency shutdown When, the average return water temperature of the acquisition current operating unit;Average supply water temperature and the average return water temperature based on the remaining unit determine whether that opening standby unit includes:Average supply water temperature based on the remaining unit, the average return water temperature of the remaining unit and the current operation machine The average return water temperature of group determines whether to open standby unit.
- 5. control method according to claim 4, it is characterised in that the average supply water temperature based on the remaining unit, The average return water temperature of the average return water temperature of the remaining unit and the current operating unit determines whether to open standby machine Group includes:Judge whether the average supply water temperature of current operating unit in the heat pump is less than the first temperature threshold;If the average supply water temperature of current operating unit is less than first temperature threshold in the heat pump, obtain described in Temperature variation of the average return water temperature of remaining unit in the second preset time period, based on the flat of the current operating unit Equal return water temperature and the temperature variation determine whether to open standby unit;If the average supply water temperature of current operating unit is not less than first temperature threshold in the heat pump, it is determined that no Open the standby unit.
- 6. control method according to claim 5, it is characterised in that the average backwater temperature based on the current operating unit Degree and the temperature variation determine whether that opening standby unit includes:If the average return water temperature of the remaining unit is less than or equal to second temperature threshold value, whether the temperature variation is judged Less than change threshold, wherein, the second temperature threshold value is less than or equal to the average return water temperature of the current operating unit;If the temperature variation is less than change threshold, a unit is opened in control at random in the standby unit;If the temperature variation is not less than change threshold, it is determined that is not turned on the standby unit.
- A kind of 7. control device of source pump, it is characterised in that including:First detection module, for detecting the supply water temperature of current operating unit in heat pump;First determining module, for the supply water temperature based on the current operating unit and the unit number of the current operating unit Amount determines the shutdown unit in the heat pump;Second detection module, for after the shutdown preset time period of compressor emergency shutdown first, detecting in the heat pump The average supply water temperature and average return water temperature of remaining unit;Second determining module, determine whether for the average supply water temperature based on the remaining unit and the average return water temperature Open standby unit.
- 8. control device according to claim 7, it is characterised in that first determining module includes:First judge module, for judging whether the average supply water temperature of current operating unit in the heat pump is more than or equal to First temperature threshold;First determination sub-module, if the average supply water temperature for the current operating unit is more than or equal to first temperature threshold Value, then the unit supply water temperature based on the unit quantity and each current operating unit determine the shutdown unit;First control module, if the average supply water temperature for the current operating unit is less than first temperature threshold, The current operating unit is controlled to continue to run with.
- 9. control device according to claim 8, it is characterised in thatFirst determination sub-module includes:Second judge module, for judging it is default whether the unit quantity is more than or equal to Quantity;First processing module, if being more than or equal to the predetermined number for the unit quantity, obtain each current fortune The unit supply water temperature of row unit, each unit supply water temperature is contrasted, in the unit supply water temperature with maximum Determine that a current operating unit is the shutdown unit in unit set;Described device also includes:Second control module, if being less than the predetermined number for the unit quantity, control is all The current operating unit is shut down.
- 10. control device according to claim 7, it is characterised in that the control device also includes:Acquisition module, for it is determined that after shutdown unit in the heat pump, in the shutdown compressor emergency shutdown, obtaining The average return water temperature of the current operating unit;Second determining module includes the second determination sub-module, for the average supply water temperature based on the remaining unit, institute The average return water temperature of the average return water temperature and the current operating unit of stating remaining unit determines whether to open standby unit.
- 11. control device according to claim 10, it is characterised in that second determination sub-module includes:3rd judge module, for judging whether the average supply water temperature of current operating unit in the heat pump is less than first Temperature threshold;Second processing module, if the average supply water temperature for current operating unit in the heat pump is less than the described first temperature Threshold value is spent, then temperature variation of the average return water temperature of the remaining unit in the second preset time period is obtained, based on institute State the average return water temperature of current operating unit and the temperature variation determines whether to open standby unit;3rd determining module, if the average supply water temperature for current operating unit in the heat pump is not less than described first Temperature threshold, it is determined that be not turned on the standby unit.
- 12. control device according to claim 11, it is characterised in that the Second processing module includes:4th judge module, if the average return water temperature for the remaining unit is less than or equal to second temperature threshold value, judge Whether the temperature variation is less than change threshold, wherein, the second temperature threshold value is less than or equal to the current operating unit Average return water temperature;3rd control module, if being less than change threshold for the temperature variation, control is random in the standby unit Open a unit;4th determining module, if being not less than change threshold for the temperature variation, it is determined that be not turned on the standby unit.
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CN107576106B (en) * | 2017-08-17 | 2019-12-27 | 广东美的暖通设备有限公司 | Cold and hot water unit and starting control method and device thereof |
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CN110686381B (en) * | 2019-10-15 | 2021-09-14 | 广东美的暖通设备有限公司 | Air conditioner control method and device and computer readable storage medium |
CN110686364A (en) * | 2019-10-18 | 2020-01-14 | 广东美的暖通设备有限公司 | Air conditioner control method and device and computer readable storage medium |
CN113405151A (en) * | 2021-06-04 | 2021-09-17 | 青岛海信日立空调系统有限公司 | Wire controller for floor heating air conditioner |
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