CN106352507B - A kind of water circulation system and its water flow switch stop value adjusting method and device - Google Patents
A kind of water circulation system and its water flow switch stop value adjusting method and device Download PDFInfo
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- CN106352507B CN106352507B CN201610973264.4A CN201610973264A CN106352507B CN 106352507 B CN106352507 B CN 106352507B CN 201610973264 A CN201610973264 A CN 201610973264A CN 106352507 B CN106352507 B CN 106352507B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/85—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using variable-flow pumps
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention discloses a kind of water circulation system and its water flow switch stop value adjusting methods and device.This method comprises: detecting the present flow rate value of the variable water pump and determining target flow section belonging to the present flow rate value；According to present mode of operation, the stop value of the water flow switch is adjusted under the present mode of operation target stop value corresponding with the target flow section by control.When flow value of the technical solution of the present invention in variable water pump changes, the corresponding stop value for adjusting water flow switch, when guaranteeing that the flow value in variable water pump decreases or increases, water circulation system is worked normally, and improves water circulation system reliability of operation.
Description
Technical field
The present embodiments relate to air-conditioning technical field more particularly to a kind of water circulation system and its water flow switch stop values
Adjusting method and device.
Background technique
With the raising of development and the awareness of saving energy of converter technique, more and more variable water pumps and water flow switch are answered
In heat pump air conditioner unit.
Wherein, variable water pump is used to control the size of water flow in heat pump air conditioner unit, there is multiple flow gears, can
According to heat pump air conditioner unit practical operation situation, its flow gear is accordingly adjusted, and then control water flow in heat pump air conditioner unit
Size.Water flow switch, and be known as flow switch or flow sensor, for detecting the big of water flow in heat pump air conditioner unit
It is small, when it detects water flow switch stop value of the water flow lower than setting, water flow switch will export stop signal it is empty to heat pump
Unit is adjusted, will shut down to avoid or reduce unit after heat pump air conditioner unit acquisition stop signal and be transported in the case where water flow is too low
Row damages unit.
However, although more and more variable water pump is applied in heat pump air conditioner unit, water in heat pump air conditioner unit
The stop value of stream switch remains as a fixed stop value of setting.Water flow when the flow reduction in variable water pump, after reduction
Amount may be lower than the water flow switch stop value of setting, then water flow switch sends stop signal to unit, and compressor emergency shutdown causes machine
Group generates error protection action, and unit reliability of operation is low.
Summary of the invention
The present invention provides a kind of water circulation system and its water flow switch stop value adjusting method and device, to improve water circulation
System reliability of operation.
In a first aspect, the embodiment of the invention provides a kind of water flow switch stop value adjusting method of water circulation system, it should
Method includes:
It detects the present flow rate value of the variable water pump and determines target flow section belonging to the present flow rate value；
According to present mode of operation, control by the stop value of the water flow switch be adjusted under the present mode of operation with
The corresponding target stop value in the target flow section.
Second aspect, the embodiment of the invention also provides a kind of water flow switch of water circulation system stop value adjusting device,
The device includes:
Flow value detection module, for detecting the present flow rate value of the variable water pump and determining the present flow rate value
Affiliated target flow section；
Stop value adjustment module, for according to present mode of operation, the stop value of the water flow switch to be adjusted to by control
Target stop value corresponding with the target flow section under the present mode of operation.
The third aspect, the embodiment of the invention also provides a kind of water circulation system, which includes: variable water pump, water
The water flow switch cutout value adjusting device that stream switch and second aspect provide.
The present invention is by detecting the present flow rate value of variable water pump and determining target flow area belonging to present flow rate value
Between；According to present mode of operation, the stop value of water flow switch is adjusted under present mode of operation and the target flow by control
The corresponding target stop value in section.Realize the target flow section according to belonging to the present flow rate value of variable water pump accordingly by water
The stop value of stream switch is adjusted under present mode of operation stop value corresponding with target flow section, guarantees in variable water pump
In flow value when decreasing or increasing, water circulation system works normally, avoid since the stop value of water flow switch is higher and lower,
So that water circulation system is shut down, error protection action is generated, improves water circulation system reliability of operation.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of heat pump air conditioner unit provided in an embodiment of the present invention；
Fig. 2 is the process of the water flow switch stop value adjusting method of one of the embodiment of the present invention one water circulation system
Figure；
Fig. 3 is the process of the water flow switch stop value adjusting method of one of the embodiment of the present invention two water circulation system
Figure；
Fig. 4 is the flow diagram of one of embodiment of the present invention two water flow switch stop value adjusting method；
Fig. 5 is the structural frames of the water flow switch cutout value adjusting device of one of the embodiment of the present invention three water circulation system
Figure.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
By taking water circulation system is heat pump air conditioner unit as an example, Fig. 1 is the structural schematic diagram of heat pump air conditioner unit.Such as Fig. 1 institute
Show, variable water pump includes 9 flow gears altogether, and successively from first flow gear to the corresponding water flow of the 9th flow gear
Increase, if the corresponding flow value of first flow gear is 0-n1, the corresponding flow value of second flow gear is n1-n2, third stream
Measuring the corresponding flow value of gear is n2-n3, and the corresponding flow value of the 4th flow gear is n3-n4, and the 5th flow gear is corresponding
Flow value is n4-n5, and the corresponding flow value of the 6th flow gear is n5-n6, and the corresponding flow value of the 7th flow gear is n6-
N7, the corresponding flow value of the 8th flow gear are n7-n8, and the corresponding flow value of the 9th flow gear is n8-n9.
Flow adjustment process is illustrated so that the present flow rate gear of variable water pump is third flow gear as an example.Into
Talent for swimming thermometer bulb and water outlet temperature sensing package work as disengaging for detecting the inflow temperature and leaving water temperature of heat pump air conditioner unit in real time or periodically
Water temperature difference Δ T is in critical field, i.e. α≤Δ T < β, and variable water pump maintains current water flow, then without adjusting its flow shelves
Position；When passing in and out water temperature difference and being less than critical field lower limit, i.e. Δ T < α, according to heat Calculation formula Q=cM Δ T, wherein Q is
The heat that unit is absorbed or released, c are the specific heat capacity of water, and M is water flow, Δ T is disengaging water temperature difference, then are absorbing or releasing
In the case that heat is constant, variable water pump can make to pass in and out water temperature difference raising by reducing water flow, i.e., variable water pump is adjustable
Low discharge gear is until disengaging water temperature difference is improved to critical field；When disengaging water temperature difference be higher than the critical field upper limit, i.e. Δ T >=
When β, according to heat Calculation formula Q=cM Δ T, in the case where the heat for absorbing or releasing is constant, variable water pump passes through increasing
Add water flow so that disengaging water temperature difference reduces, i.e., the adjustable high flow capacity gear of variable water pump is until disengaging water temperature difference is reduced to standard
In range.
Embodiment one
Fig. 2 is a kind of process of the water flow switch stop value adjusting method for water circulation system that the embodiment of the present invention one provides
Figure, the case where the present embodiment is applicable in water circulation system, the stop value of water flow switch is adjusted, this method can be by
The water flow switch of water circulation system stops value adjusting device to execute, which can be real by the way of software and/or hardware
It is existing.Referring to fig. 2, method provided in this embodiment specifically comprises the following steps:
Step 110, the present flow rate value for detecting variable water pump simultaneously determine target flow section belonging to present flow rate value.
Wherein, variable water pump is generally used in the flow-changing water circulatory system, can be according to the actual motion of water circulation system
Situation accordingly adjusts its flow gear, and then according to flow gear regulating water flow size, controls water flow in water circulation system
Size.
Illustratively, variable water pump includes 9 flow gears altogether, and the corresponding flow value of first flow gear is 0-n1,
The corresponding flow value of second flow gear is n1-n2, and the corresponding flow value of third flow gear is n2-n3, the 4th flow gear
Corresponding flow value is n3-n4, and the corresponding flow value of the 5th flow gear is n4-n5, the corresponding flow value of the 6th flow gear
For n5-n6, the corresponding flow value of the 7th flow gear is n6-n7, and the corresponding flow value of the 8th flow gear is n7-n8, the 9th
The corresponding flow value of flow gear is n8-n9, and optional that 0-n3 is determined as first flow section, n3-n6 is determined as second flow
Section, n6-n9 are determined as third flow rate zone, then current stream can be determined according to the present flow rate value in the variable water pump of detection
Target flow section belonging to magnitude.
It will be understood by those skilled in the art that also optional in other embodiments includes at least two flow rate zones, such as 2
Or 4 flow rate zones, the numbers of gear steps of different types of variable water pump may be different, and flow rate zone is corresponding with flow gear
Relationship be also possible to it is one-to-one or one-to-many, in the present invention without concrete restriction.In the present embodiment with variable water pump
Water flow is illustrated for being divided into three flow rate zones.
Illustratively, can present flow rate value in real-time detection variable water pump to determine target belonging to present flow rate value
Flow rate zone guarantees according to the stop value of target flow intervals control water flow switch belonging to present flow rate value determining in real time
The stop value of water flow switch in real time to target flow section is corresponding belonging to present flow rate value adjusts.Also optional according to setting time
The present flow rate value of interval timing detection variable water pump simultaneously determines target flow section belonging to present flow rate value, when such as setting
Between between be divided into 1 minute, then every the present flow rate value of 1 minute timing detection variable water pump and determine belonging to present flow rate value
Target flow section avoids detection excessively frequent, results in waste of resources.
Step 120, according to present mode of operation, control by the stop value of water flow switch be adjusted under present mode of operation with
The corresponding target stop value in target flow section.
There are many operational modes of water circulation system, such as refrigeration mode, heating mode and dehumidification mode isotype.Water circulation
System can switch over operational mode according to the switching command that user inputs, or can be automatic according to the detection to local environment
Running mode switching.Optional operational mode includes at least refrigeration mode and heating mode in the present embodiment.
Preferably, under any one operational mode, the stop value of the flow rate zone of variable water pump and water flow switch is one by one
Corresponding, under different operational modes, the stop value of water flow switch corresponding to the same flow rate zone of variable water pump may be different.
As in cooling mode, first flow section 0-n3 is corresponding with the first refrigeration stop value δ 1, and second flow section n3-n6 is corresponding with
The second corresponding third of refrigeration stop value δ 2, third flow rate zone n6-n9 is freezed stop value δ 3, wherein 1 < δ of δ, 2 < δ 3.It is making
Under heat pattern, first flow section 0-n3 is corresponding with the first heating stop value ε 1, and second flow section n3-n6 is corresponding with the second system
Hot stop value ε 2, third flow rate zone n6-n9 are corresponding with third heating stop value ε 3, wherein 1 < ε of ε, 2 < ε 3.
Behind the target flow section for determining variable water pump, according to present mode of operation, by the stop value tune of water flow switch
Section is target stop value corresponding with target flow section under present mode of operation.As in a heating mode, variable-flow is detected
The present flow rate of water pump determines its affiliated flow rate zone according to the present flow rate value of variable water pump, as present flow rate value is less than
N6 and it is greater than n3, it is determined that present flow rate value belongs to second flow section, then its corresponding target stop value is ε 2, and control is by water
The stop value of stream switch is adjusted to target stop value ε 2.If the flow in variable water pump reduces, discovery becomes when such as detecting again
The present flow rate value of flow water pump is less than n3, it is determined that present flow rate value belongs to first flow section, according to first flow area
Between corresponding target stop value be ε 1, the stop value of water flow switch is adjusted to target stop value ε 1 by control.If variable water pump
In flow increase, the present flow rate value of discovery variable water pump is greater than n6 and is less than n9 when such as detecting again, determines current stream
Magnitude belongs to third flow rate zone, is ε 3 according to the corresponding target stop value of third flow rate zone, controls water flow switch
Stop value is adjusted to target stop value ε 3.
When being achieved in the flow value variation in variable water pump, the corresponding stop value for adjusting water flow switch guarantees
When flow value in variable water pump decreases or increases, water circulation system is worked normally, and avoids the stop value due to water flow switch
It is higher and lower, so that water circulation system is shut down, error protection action is generated, improves water circulation system reliability of operation.
Illustratively, under any one operational mode the one-to-one water flow switch of flow rate zone of variable water pump it is disconnected
The size of flow valuve can be set according to experimental result.
Illustratively, the corresponding stop value of any flow rate zone is greater than same traffic section under heating mode under refrigeration mode
Corresponding stop value.The reason is that in cooling mode, if the leaving water temperature of water circulation system is lower, will lead to water circulation
Heat exchanger in system is freezing, therefore in cooling mode, and the water flow in variable water pump can be larger so that variable water pump
Disengaging water temperature difference it is smaller so that leaving water temperature will not be too low, protect heat exchanger.
Illustratively, it is opened under dehumidification mode with water flow corresponding to the same flow rate zone of variable water pump under refrigeration mode
The stop value of pass is identical.
The technical solution of the present embodiment, by detecting the present flow rate value of variable water pump and determining belonging to present flow rate value
Target flow section；According to present mode of operation, control by the stop value of water flow switch be adjusted under present mode of operation with
The corresponding target stop value in target flow section.Realize the target flow section according to belonging to the present flow rate value of variable water pump
The stop value of water flow switch is accordingly adjusted under present mode of operation stop value corresponding with target flow section, guarantees becoming
When flow value in flow water pump decreases or increases, water circulation system is worked normally, avoid stop value due to water flow switch compared with
It is high and lower, so that water circulation system is shut down, error protection action is generated, improves water circulation system reliability of operation.
Embodiment two
Fig. 3 is a kind of process of the water flow switch stop value adjusting method of water circulation system provided by Embodiment 2 of the present invention
Figure.The present embodiment is to be advanced optimized on the basis of the above embodiments.Fig. 3 is participated in, the method that this example provides is specific
Include:
Step 210 establishes water flow data library.
Establish water flow data library, wherein be stored with first flow section in water flow data library to m flow rate zone, and deposit
First flow section to the one-to-one first refrigeration stop value of m flow rate zone to m refrigeration under refrigeration mode is contained to stop
Value, and be also stored with first flow section to m flow rate zone one-to-one first under heating mode and heat stop value extremely
M heats stop value.
Illustratively, in water flow data library, first flow section to the corresponding flow value of m flow rate zone successively increases
Add, if the corresponding flow value in first flow section is 0-M1, the corresponding flow value in second flow section is M1-M2 ..., m stream
Measuring the corresponding flow value in section is Mn-1-Mm, wherein M1 < M2 < ... < Mn-1 < Mm, and first flow section is extremely under refrigeration mode
The one-to-one first refrigeration stop value of m flow rate zone to m refrigeration stop value is respectively ρ 1 to ρ m, first under heating mode
Flow rate zone to the one-to-one first heating stop value of m flow rate zone to m heating stop value is respectively μ 1 to μm.Wherein
ρ 1 to ρ m is sequentially increased, and μ 1 is to μm being sequentially increased.
Illustratively, ρ 1 to ρ m can be respectively with μ 1 to μm identical, can not also be identical.
Preferably, 1 > μ 1 ... of ρ, ρ m > μm.
Step 220, the present flow rate value for detecting variable water pump simultaneously determine target flow section belonging to present flow rate value.
Step 230, according to water flow data library, determine under present mode of operation the corresponding target cutout in target flow section
Value.
It, then, can be true according to the information stored in water flow data library after determining target flow section belonging to present flow rate
Determine the corresponding target stop value in target flow section under present mode of operation.If the present flow rate value of detection variable water pump is
C, and M1 < C < M2, then target flow section belonging to the present flow rate value of variable water pump is second flow section, if water follows
The current operational mode of loop system is refrigeration mode, then the corresponding target stop value in second flow section is ρ 2 under refrigeration mode,
If the current operational mode of water circulation system is heating mode, the corresponding target stop value in second flow section under heating mode
For μ 2.
The stop value of water flow switch is adjusted to target stop value by step 240, control.
It determines the corresponding target stop value in target flow section under present mode of operation, then controls the cutout of water flow switch
Value is adjusted to target stop value, so that water flow switch under target stop value, detects the water flow in water circulation system,
Water circulation system is protected.
Fig. 4 is the flow diagram of water flow switch stop value adjusting method.Referring to fig. 4, using water circulation system as heat pump sky
For tune unit.After heat pump air conditioner unit launches into normal operation, the present mode of operation of heat pump air conditioner unit is first determined whether
For heating mode or refrigeration mode.
After determining heat pump air conditioner unit present mode of operation, water inlet temperature sensing package and water outlet temperature sensing package timing detection heat pump air conditioner
The inflow temperature and leaving water temperature of unit.
If intaking temperature difference α≤Δ T < β, variable water pump maintains present flow rate, then according to the variable water pump detected
In flow value can determine that the affiliated flow rate zone of present flow rate value does not change, then target stop value is constant.
If intaking temperature difference T < α, variable water pump turns down flow, according to the present flow rate for detecting variable water pump
It is worth and determines flow rate zone belonging to present flow rate value, then according to water flow data library, it may be determined that flow area belonging to present flow rate value
Between corresponding stop value in this operating mode, water flow switch stop value is adjusted to the stop value, realized in variable-flow by control
When water flow in water pump is reduced, the corresponding water flow switch stop value that adjusts is reduced.
If intaking temperature difference T >=β, flow is turned up in variable water pump, according to the present flow rate for detecting variable water pump
It is worth and determines flow rate zone belonging to present flow rate value, then according to water flow data library, it may be determined that flow area belonging to present flow rate value
Between corresponding stop value in this operating mode, water flow switch stop value is adjusted to the stop value, realized in variable-flow by control
When water flow in water pump increases, the corresponding water flow switch stop value that adjusts is improved.
The technical solution of the embodiment of the present invention, by establishing water flow data library；Detect the present flow rate value of variable water pump
And determine target flow section belonging to present flow rate value；According to water flow data library, target flow under present mode of operation is determined
The corresponding target stop value in section；The stop value of water flow switch is adjusted to target stop value by control.It realizes in water flow data library
It is corresponding that each flow rate zone under each flow rate zone and refrigeration mode and heating mode is stored in middle storage water flow data library
Each stop value, thus detecting the present flow rate value of variable water pump and determining target flow section belonging to present flow rate value
Afterwards, target stop value can be determined rapidly and accurately according to the information stored in water flow data library, so that water flow switch is disconnected in target
More accurately water circulation system is protected under flow valuve.
Embodiment three
Fig. 5 is a kind of structure of the water flow switch cutout value adjusting device for water circulation system that the embodiment of the present invention three provides
Block diagram.Referring to Fig. 5, which includes: flow value detection module 310 and stop value adjustment module 320, wherein
Flow value detection module 310, for detecting the present flow rate value of the variable water pump and determining the current stream
Target flow section belonging to magnitude；
Stop value adjustment module 320, for according to present mode of operation, control to adjust the stop value of the water flow switch
For target stop value corresponding with the target flow section under the present mode of operation.
In above scheme, optionally, the flow value detection module is specifically used for: according to setting time interval, timing
It detects the present flow rate value of the variable water pump and determines target flow section belonging to the present flow rate value.
In above scheme, optionally, the operational mode of the water circulation system is included at least: refrigeration mode and heating mould
Formula.
In above scheme, optionally, further includes:
Database module, for establishing water flow data library, wherein be stored with first flow in the water flow data library
Section is stored under refrigeration mode the first flow section to the m flow rate zone one by one to the m flow rate zone
Corresponding first refrigeration stop value freezes stop value to m, and is also stored under heating mode the first flow section extremely
The one-to-one m+1 of m flow rate zone heats stop value to 2m heating stop value.
In above scheme, optionally, the stop value adjustment module includes:
Target stop value determination unit, for determining the target under present mode of operation according to the water flow data library
The corresponding target stop value of flow rate zone；
Unit is adjusted, the stop value of the water flow switch is adjusted to the target stop value for controlling.
Example IV
The embodiment of the present invention four additionally provides a kind of water circulation system, which includes variable water pump, water flow
The cutout value adjusting device of water flow switch described in switch and above-mentioned any embodiment, and for executing described in above-mentioned any embodiment
Water flow switch stop value adjusting method.
Illustratively, water circulation system is air-conditioner set.
Preferably, water circulation system is heat pump air conditioner unit.
It will be understood by those skilled in the art that any one water circulation system for having variable water pump and water flow switch is equal
Fall into protection scope of the present invention.
Water circulation system provided in this embodiment target flow area according to belonging to present flow rate value in variable water pump
Between, the corresponding water flow switch stop value that adjusts is the corresponding target cutout in target flow section under water circulation system present mode of operation
Value, when guaranteeing that the flow value in variable water pump decreases or increases, water circulation system is worked normally, and is avoided due to water flow switch
Stop value it is higher and lower so that water circulation system shut down, generate error protection action, improve water circulation system operation it is reliable
Property.
Method provided by the embodiment of the present invention one and embodiment two can be performed in above-mentioned apparatus, has and executes above method phase
The functional module and beneficial effect answered.The not technical detail of detailed description in the present embodiment, reference can be made to the embodiment of the present invention one
With method provided by embodiment two.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (12)
1. a kind of water flow switch stop value adjusting method of water circulation system, which is characterized in that configuration in the water circulation system
There are variable water pump and water flow switch, which includes:
It detects the present flow rate value of the variable water pump and determines target flow section belonging to the present flow rate value；
According to present mode of operation, control by the stop value of the water flow switch be adjusted under the present mode of operation with it is described
The corresponding target stop value in target flow section.
2. the method according to claim 1, wherein the present flow rate of the detection variable water pump and true
The specific implementation procedure in target flow section belonging to the fixed present flow rate value are as follows: according to setting time interval timing detection institute
It states the present flow rate value of variable water pump and determines target flow section belonging to the present flow rate value.
3. the method according to claim 1, wherein the operational mode of the water circulation system includes at least: system
Cold mode and heating mode.
4. according to the method described in claim 3, it is characterized in that, detecting the present flow rate value of the variable water pump and determination
Before target flow section belonging to the present flow rate value, further includes:
Establish water flow data library, wherein be stored with first flow section in the water flow data library to m flow rate zone, and deposit
The first flow section is contained under refrigeration mode to the one-to-one first refrigeration stop value of the m flow rate zone to m
Freeze stop value, and to be also stored with the first flow section under heating mode one-to-one to the m flow rate zone
First heats stop value to m heating stop value.
5. according to the method described in claim 4, it is characterized in that, being controlled according to present mode of operation by the water flow switch
Stop value be adjusted under the present mode of operation target stop value corresponding with the target flow section, comprising:
According to the water flow data library, the corresponding target stop value in the target flow section under present mode of operation is determined；
The stop value of the water flow switch is adjusted to the target stop value by control.
The value adjusting device 6. a kind of water flow switch of water circulation system stops, which is characterized in that configuration in the water circulation system
There are variable water pump and water flow switch, water flow switch cutout value adjusting device includes:
Flow value detection module, for detecting the present flow rate value of the variable water pump and determining belonging to the present flow rate value
Target flow section；
Stop value adjustment module, for according to present mode of operation, the stop value of the water flow switch to be adjusted to described by control
Target stop value corresponding with the target flow section under present mode of operation.
7. device according to claim 6, which is characterized in that the flow value detection module is specifically used for: according to setting
Time interval periodically detects the present flow rate value of the variable water pump and determines target flow belonging to the present flow rate value
Section.
8. device according to claim 6, which is characterized in that the operational mode of the water circulation system includes at least: system
Cold mode and heating mode.
9. device according to claim 8, which is characterized in that further include:
Database module, for establishing water flow data library, wherein be stored with first flow section in the water flow data library
To m flow rate zone, and the first flow section is stored under refrigeration mode to the m flow rate zone one-to-one
One refrigeration stop value freezes stop value to m, and is also stored under heating mode the first flow section and flows to the m
It measures the one-to-one m+1 in section and heats stop value to 2m heating stop value.
10. device according to claim 9, which is characterized in that the stop value adjustment module includes:
Target stop value determination unit, for determining the target flow under present mode of operation according to the water flow data library
The corresponding target stop value in section；
Unit is adjusted, the stop value of the water flow switch is adjusted to the target stop value for controlling.
11. a kind of water circulation system, which is characterized in that including variable water pump, water flow switch and such as claim 6-10 are any
Water flow switch cutout value adjusting device described in.
12. water circulation system according to claim 11, which is characterized in that the water circulation system is heat-pump air-conditioner
Group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610973264.4A CN106352507B (en) | 2016-11-07 | 2016-11-07 | A kind of water circulation system and its water flow switch stop value adjusting method and device |
Applications Claiming Priority (1)
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| CN109539472B (en) * | 2018-10-10 | 2020-01-03 | 珠海格力电器股份有限公司 | Target sheet type water flow switch, cooling machine, control method, equipment and medium |
| CN110779163B (en) * | 2019-10-21 | 2021-07-09 | 珠海格力电器股份有限公司 | Air conditioning unit control method and device |
| CN111412624A (en) * | 2020-03-20 | 2020-07-14 | 青岛海尔空调电子有限公司 | Air conditioning unit and compressor frequency control method thereof |
| CN112049788A (en) * | 2020-06-19 | 2020-12-08 | 珠海维尔康生物科技有限公司 | Perfusion pump flow control method and device |
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