CN106839085A - A kind of heat pump water-heating system dry combustion method decision method and device - Google Patents
A kind of heat pump water-heating system dry combustion method decision method and device Download PDFInfo
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- CN106839085A CN106839085A CN201710102916.1A CN201710102916A CN106839085A CN 106839085 A CN106839085 A CN 106839085A CN 201710102916 A CN201710102916 A CN 201710102916A CN 106839085 A CN106839085 A CN 106839085A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1039—Arrangement or mounting of control or safety devices for water heating systems for central heating the system uses a heat pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/18—Hot-water central heating systems using heat pumps
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
The embodiment of the present application provides a kind of heat pump water-heating system dry combustion method decision method and device, is related to field of household appliances, accurately can carry out dry combustion method judgement to heat pump water-heating system.The method includes：DC frequency-changing water pump in control heat pump water-heating system obtains first output-index of the DC frequency-changing water pump under the first rotating speed according to the first rotation speed operation；Control DC frequency-changing water pump obtains second output-index of the DC frequency-changing water pump under the second rotating speed according to the second rotation speed operation；According to the absolute difference between the first output-index and second output-index, judge whether heat pump water-heating system dry combustion method occurs；Wherein, output-index includes output water-carrying capacity and power output；The output-index includes first output-index and second output-index.The application is applied to heat pump water-heating system.
Description
Technical field
The present invention relates to field of household appliances, more particularly to a kind of heat pump water-heating system dry combustion method decision method and device.
Background technology
Existing water heating product uses abnormal conditions occur for a long time, for example, the heat pump water-heating system in water heating product
When long between when in use, heat pump water-heating system occurs the unusual conditions such as dry combustion method, so as to cause the water route of heat pump water-heating system
Occur that water is very few or situation without water, so as to influence the heating effect of water heating product (to note：Heat exchange in heat pump water-heating system
During device (e.g., water tank) dry combustion method, due to being flowed into without new cold water, the water in heat exchanger is caused not flow, burning makes heat exchange
The boiled generation vapor of water in device, so that the internal pressure increase of heat exchanger and pipeline, finally can break heat exchanger water pipe
Split, seriously can then produce blast).In order to ensure the reliability of heat pump water-heating system, it is necessary in time to the work of heat pump water-heating system
Detected as state, to be safeguarded and being repaired in time.
However, because the water pump in existing heat pump water-heating system is usually exchange water pump, and exchange the rotating speed of water pump without
Method carries out stepless speed regulation control, and the heat pump water-heating system of exchange water pump cannot direct feedback its working condition.Therefore, existing
In technology, generally by increasing sensor (e.g., flow sensor, temperature sensor, pressure sensor in heat pump water-heating system
Deng), using these hardware sensors dry combustion method judgement is carried out to heat pump water-heating system to feed back the work shape of heat pump water-heating system
State.
But, increasing hardware device can cause that the design and wiring of heat pump water-heating system are complicated, can increase water heating product
Cost, meanwhile, increased sensor assembly is vulnerable to the influence of external environment, it is impossible to accurately heat pump water-heating system is entered
Row dry combustion method judges.
The content of the invention
Embodiments of the invention provide a kind of heat pump water-heating system dry combustion method decision method and device, can be accurately to heat pump
Water-heating system carries out dry combustion method judgement.
To reach above-mentioned purpose, embodiments of the invention are adopted the following technical scheme that：
A kind of first aspect, there is provided heat pump water-heating system dry combustion method decision method, including：
DC frequency-changing water pump in control heat pump water-heating system obtains the DC frequency-changing water according to the first rotation speed operation
First output-index of the pump under the first rotating speed, controls the DC frequency-changing water pump according to the second rotation speed operation, and obtains described
Second output-index of the DC frequency-changing water pump under the second rotating speed；
According to the absolute difference between first output-index and second output-index, the heat pump hot-water heating system is judged
Whether system there is dry combustion method；
Wherein, output-index includes output water-carrying capacity and power output, and the output-index includes that the described first output refers to
Mark and second output-index.
A kind of second aspect, there is provided heat pump water-heating system dry combustion method decision maker, including：
Control module, for controlling the DC frequency-changing water pump in heat pump water-heating system according to the first rotation speed operation, and obtains
First output-index of the DC frequency-changing water pump under the first rotating speed, controls the DC frequency-changing water pump to be transported according to the second rotating speed
Turn, and obtain second output-index of the DC frequency-changing water pump under the second rotating speed；
Determination module, for first output-index and second output-index that are obtained according to the control module
Between absolute difference, judge whether the heat pump water-heating system dry combustion method occurs；
Wherein, output-index includes output water-carrying capacity and power output, and the output-index includes that the described first output refers to
Mark and second output-index.
When there is dry combustion method due to heat pump water-heating system, the water in the water route of heat pump water-heating system will not flow, therefore, this Shen
Please operated according to different rotating speeds by controlling the DC frequency-changing water pump in heat pump water-heating system, and obtain DC frequency-changing water pump not
With the output-index under rotating speed, then the first output-index and DC frequency-changing according to DC frequency-changing water pump under the first rotating speed
Absolute difference between second output-index of the water pump under the second rotating speed, i.e., be with the second output-index according to the first output-index
It is no to have differences to judge whether heat pump water-heating system dry combustion method occurs.Compared to prior art, the application need not increase extra
Hardware device, the hardware cost of saving, it is not necessary to complicated design and wiring, accurately can do to heat pump water-heating system
Burn and judge.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be in embodiment or description of the prior art
The required accompanying drawing for using is briefly described, it should be apparent that, drawings in the following description are only some realities of the invention
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is a kind of method flow diagram of heat pump water-heating system dry combustion method decision method provided in an embodiment of the present invention；
Fig. 2 is the method flow diagram of another heat pump water-heating system dry combustion method decision method provided in an embodiment of the present invention；
Fig. 3 is a kind of structural representation of heat pump water-heating system dry combustion method decision maker provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Heat pump water-heating system involved in the application is introduced below, is understood with helping reader：
The heat pump water-heating system that the application is provided includes outdoor unit, DC frequency-changing water pump, water route and water module.Wherein,
Outdoor unit is exchanged heat with water route, and the heat of outdoor unit is transferred in water route；Water route can for floor heating, radiator, water tank with
And bathroom etc.；DC frequency-changing water pump feeds back the water-carrying capacity and power of its own by existing algorithm, also for realizing in water route
Water circulation；Water module is controlled and detection to the rotating speed of DC frequency-changing water pump.
It should be noted that in the embodiment of the present application, the word such as " exemplary " or " such as " makees example, example for expression
Card or explanation.Any embodiment or design for being described as " exemplary " or " such as " in the embodiment of the present application should not
It is interpreted than other embodiments or design more preferably or more advantage.Specifically, " exemplary " or " example are used
Such as " word is intended to that related notion is presented in a concrete fashion.
It should be noted that in the embodiment of the present application, unless otherwise indicated, the implication of " multiple " refer to two or two with
On.For example, multiple packets refer to two or more packets.
It should be noted that in the embodiment of the present application, " (English：Of) ", " corresponding (English：Corresponding,
Relevant it is) " and " corresponding (English：Corresponding) " can use with sometimes, it is noted that do not emphasizing it
During difference, its is to be expressed be meant that it is consistent.
Based on the above, the embodiment of the present invention provides a kind of heat pump water-heating system dry combustion method decision method, as shown in figure 1,
The method comprises the following steps：
101st, the DC frequency-changing water pump in control heat pump water-heating system is according to the first rotation speed operation, and obtains DC frequency-changing water
First output-index of the pump under the first rotating speed.
Exemplary, the output-index in the application includes the output water-carrying capacity or power output of DC frequency-changing water pump, its
In, output water refers to the water that DC frequency-changing water pump is conveyed within the unit interval, and power output refers to DC frequency-changing
The shaft power of water pump.
It should be noted that when controlling heat pump water-heating system to be operated according to certain rotating speed, heat pump water-heating system is needed
Run regular time, it is ensured that heat pump water-heating system stable operation.
102nd, control DC frequency-changing water pump is according to the second rotation speed operation, and obtains DC frequency-changing water pump under the second rotating speed
Second output-index.
103rd, according to the absolute difference between the first output-index and the second output-index, judge whether heat pump water-heating system goes out
Existing dry combustion method.
Exemplary, when there is dry combustion method due to the water in heat pump water-heating system, the water in the water route of heat pump water-heating system is not
Can flow, therefore, whether the water-carrying capacity that the application can be exported according to DC frequency-changing water pump under different rotating speeds changes, and comes
Judge whether heat pump water-heating system dry combustion method occurs.When specifically judging, because the mean power of DC frequency-changing water pump can reflect
Its water-carrying capacity that can be provided, therefore, the application can be directly based upon the water-carrying capacity of the feedback of DC frequency-changing water pump, it is also possible to base
Dry combustion method judgement is carried out in the mean power of the feedback of DC frequency-changing water pump.
Exemplary, when the appearance dry combustion method of heat pump water-heating system, the application can be by sending failure code, Huo Zhefeng
The modes such as ring alarm point out maintenance personal, it is ensured that the on-call maintenance of heat pump water-heating system.
When there is dry combustion method due to heat pump water-heating system, the water in the water route of heat pump water-heating system will not flow, therefore, this Shen
Please operated according to different rotating speeds by controlling the DC frequency-changing water pump in heat pump water-heating system, and obtain DC frequency-changing water pump not
With the output-index under rotating speed, then the first output-index and DC frequency-changing according to DC frequency-changing water pump under the first rotating speed
Absolute difference between second output-index of the water pump under the second rotating speed, i.e., be with the second output-index according to the first output-index
It is no to have differences to judge whether heat pump water-heating system dry combustion method occurs.Compared to prior art, the application need not increase extra
Hardware device, the hardware cost of saving, it is not necessary to complicated design and wiring, accurately can do to heat pump water-heating system
Burn and judge.
In a kind of example, if the output-index of the DC frequency-changing water pump is for output water-carrying capacity, step 103 is specifically wrapped
Include following steps：
If the absolute difference between 103a1, the first output water-carrying capacity and the second output water-carrying capacity is more than or equal to the first predetermined threshold
Value, then judge that dry combustion method occurs in heat pump water-heating system.
If the absolute difference between 103a2, the first output water-carrying capacity and the second output water-carrying capacity is less than the first predetermined threshold,
Judge that heat pump water-heating system is normally run.
In another example, if the output-index of the DC frequency-changing water pump is power output, step 103 is specifically wrapped
Include following steps：
If the absolute difference between 103b1, the first power output and the second power output is more than or equal to the second predetermined threshold,
Judge that dry combustion method occurs in heat pump water-heating system.
If the absolute difference between 103b2, the first power output and the second power output is less than the second predetermined threshold, judge
Heat pump water-heating system is normally run.
Further, when step 101,102 are performed, that is, output-index of the DC frequency-changing water pump under rotating speed of target is obtained
When, can specifically obtain average output when DC frequency-changing water pump is operated in the first predetermined amount of time according to rotating speed of target and refer to
Mark (for example, averagely output water-carrying capacity and average output power), wherein, the rotating speed of target includes the first rotating speed and second turn
Speed.
Optionally, in order to improve the application offer heat pump water-heating system dry combustion method decision method accuracy, Ke Yichong
Implement above-mentioned steps 101, step 102 again and whether step 103 dry combustion method occurs and detect to heat pump water-heating system, i.e., in step
After rapid 103, specifically：
104th, DC frequency-changing water pump is controlled again according to the first rotation speed operation, and obtains DC frequency-changing water pump in the first rotating speed
Under the first output-index.
105th, DC frequency-changing water pump is controlled again according to the second rotation speed operation, and obtains DC frequency-changing water pump in the second rotating speed
Under the second output-index.
106th, according to the absolute difference between the first output-index and the second output-index for reacquiring, heat pump hot-water heating is judged
Whether system there is dry combustion method.
It should be noted that rejudging whether heat pump water-heating system the method and step of dry combustion method occurs in the present embodiment
The deterministic process of 101- steps 103 is similar to, and will not be repeated here.
Exemplary, the application periodically can carry out dry combustion method judgement according to predetermined period to heat pump water-heating system,
The instruction of user instruction can be based on, dry combustion method judgement is carried out to heat pump water-heating system according to user's request is acyclic, so that
Multiple dry combustion method can be carried out to heat pump water-heating system and blocks judgement, improve the detection effect that the dry combustion method of heat pump water-heating system judges
Rate.
Additionally, the embodiment of the present application is not limited the number of times for performing step 101- steps 103, and work as above-mentioned repetition to heat
Pump water-heating system is carried out in the result of determination of dry combustion method judgement, if it is determined that for the number of times of dry combustion method reaches pre-determined number, then judging heat pump
There is dry combustion method in water-heating system.In order to prevent causing heat pump water-heating system to be damaged because heat pump water-heating system dry combustion method occurs, judging
After heat pump water-heating system dry combustion method, forced stoppage can be implemented to heat pump water-heating system.
In a kind of example, the application can control the DC frequency-changing water in heat pump water-heating system when step 101 is performed
Pump, according to the first rotation speed operation, and obtains the DC frequency-changing water pump in the first predetermined amount of time in the first predetermined amount of time
Average output-index during according to the first rotation speed operation.When step 102 is performed, the direct current in heat pump water-heating system can be controlled
Variable frequency pump, according to the second rotation speed operation, and obtains the DC frequency-changing water pump in the second pre- timing in the second predetermined amount of time
Between in section according to the second rotation speed operation when average output-index, wherein, above-mentioned average output-index includes average output water
Flow and average output power.
Based on this, the dry combustion method decision flowchart of the heat pump water-heating system shown in reference picture 2, the present embodiment is to heat pump hot-water heating system
The dry combustion method decision process of system carries out exemplary description, specifically：
1) when heat pump water-heating system is started shooting every time, anti-dry judgment model can be entered.Under the anti-dry judgment model, electricity
Control system controls DC frequency-changing water pump to be operated according to rotating speed s1, runs the t1 times, while recording the mean flow of DC frequency-changing water pump
Amount Q1 or mean power P1.
2) electric control system controls DC frequency-changing water pump is operated according to rotating speed s2, and Δ s1=s2-s1>0, the t2 times are run,
The average discharge Q2 or mean power P2 of DC frequency-changing water pump are recorded simultaneously.
3) Δ Q1=Q2-Q1 or Δ P1=P2-P1 is calculated；If Δ Q1 >=Δ Q01 (Δ Q01 be the first predetermined threshold) or
Δ P1 >=Δ P01 (Δ P01 is the second predetermined threshold), then it is assumed that water system is normal, if continuous n1 times judges normal or t3
Occur the subnormal judgements of n2 in time, it is believed that dry combustion method does not occur in water system, water pump enters normal operating conditions；, whereas if Δ
Q1<Δ Q01 or Δ P1<Δ P01, then it is assumed that water system exception, if judging exception for n3 times or occurring n4 times in the t4 times, recognizes
For dry combustion method occurs in water system, water pump is stopped, electric-control system alarm；If Δ Q02≤Δ Q1<Δ Q01 or Δ P02≤Δ P1
<Δ P01, then after water pump is by the normal operation t5 times, be again introduced into anti-dry judgment model.
Embodiments of the invention provide a kind of heat pump water-heating system dry combustion method decision maker, as shown in figure 3, the device 2 includes：
Control module 21 and determination module 22, wherein：
Control module 21, for controlling the DC frequency-changing water pump in heat pump water-heating system according to the first rotation speed operation, and obtains
First output-index of the DC frequency-changing water pump under the first rotating speed is taken, DC frequency-changing water pump is controlled according to the second rotation speed operation, and
Obtain second output-index of the DC frequency-changing water pump under the second rotating speed.
Determination module 22, for absolute between the first output-index obtained according to control module 21 and the second output-index
Difference, judges whether heat pump water-heating system dry combustion method occurs.
Wherein, output-index includes output water-carrying capacity and power output, and the output-index includes the first output-index and the
Two output-indexes.
Optionally, if output-index is for output water-carrying capacity, determination module 21, specifically for：
If the absolute difference between the first output water-carrying capacity and the second output water-carrying capacity is more than or equal to the first predetermined threshold, sentence
Determine institute's heat pump water-heating system and dry combustion method occur；
If the absolute difference between the first output water-carrying capacity and the second output water-carrying capacity is less than the first predetermined threshold, heat is judged
Pump water-heating system is normally run.
Optionally, if output-index is power output, determination module 21, specifically for：
If the absolute difference between the first power output and the second power output is more than or equal to the second predetermined threshold, heat is judged
There is dry combustion method in pump water-heating system；
If the absolute difference between the first power output and the second power output is less than the second predetermined threshold, heat pump water is judged
Heating system normally runs.
Optionally, control module 21 is stated, is additionally operable to：
Obtain average output-index when DC frequency-changing water pump is operated in the first predetermined amount of time according to rotating speed of target；Its
In, the rotating speed of target includes the first rotating speed and the second rotating speed.
When there is dry combustion method due to heat pump water-heating system, the water in the water route of heat pump water-heating system will not flow, therefore, this Shen
Please operated according to different rotating speeds by controlling the DC frequency-changing water pump in heat pump water-heating system, and obtain DC frequency-changing water pump not
With the output-index under rotating speed, then the first output-index and DC frequency-changing according to DC frequency-changing water pump under the first rotating speed
Absolute difference between second output-index of the water pump under the second rotating speed, i.e., be with the second output-index according to the first output-index
It is no to have differences to judge whether heat pump water-heating system dry combustion method occurs.Compared to prior art, the application need not increase extra
Hardware device, the hardware cost of saving, it is not necessary to complicated design and wiring, accurately can do to heat pump water-heating system
Burn and judge.
In several embodiments provided herein, it should be understood that disclosed apparatus and method, can be by it
Its mode is realized.For example, device embodiment described above is only schematical, for example, the division of the unit, only
Only a kind of division of logic function, can there is other dividing mode when actually realizing, such as multiple units or component can be tied
Another system is closed or is desirably integrated into, or some features can be ignored, or do not perform.It is another, it is shown or discussed
Coupling each other or direct-coupling or communication connection can be the INDIRECT COUPLINGs or logical of device or unit by some interfaces
Letter connection, can be electrical, mechanical or other forms.
The unit that is illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit
The part for showing can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be according to the actual needs selected to realize the mesh of this embodiment scheme
's.
In addition, during each functional unit in each embodiment of the invention can be integrated in a processing unit, it is also possible to
It is that the independent physics of unit includes, it is also possible to which two or more units are integrated in a unit.Above-mentioned integrated list
Unit can both be realized in the form of hardware, it would however also be possible to employ hardware adds the form of SFU software functional unit to realize.
The above-mentioned integrated unit realized in the form of SFU software functional unit, can store and be deposited in an embodied on computer readable
In storage media.Above-mentioned SFU software functional unit storage is in a storage medium, including some instructions are used to so that a computer
Equipment (can be personal computer, server, or network equipment etc.) performs the portion of each embodiment methods described of the invention
Step by step.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (Read-Only Memory, abbreviation
ROM), random access memory (Random Access Memory, abbreviation RAM), magnetic disc or CD etc. are various can store
The medium of program code.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
Modified with to the technical scheme described in foregoing embodiments, or equivalent is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (10)
1. a kind of heat pump water-heating system dry combustion method decision method, it is characterised in that including：
DC frequency-changing water pump in control heat pump water-heating system obtains the DC frequency-changing water pump and exists according to the first rotation speed operation
The first output-index under first rotating speed, controls the DC frequency-changing water pump according to the second rotation speed operation, and obtain the direct current
Second output-index of the variable frequency pump under the second rotating speed；
According to the absolute difference between first output-index and second output-index, judge that the heat pump water-heating system is
It is no dry combustion method occur；
Wherein, output-index include output water-carrying capacity and power output, the output-index include first output-index and
Second output-index.
2. method according to claim 1, it is characterised in that if when the output-index is for output water-carrying capacity, described
According to the absolute difference between first output-index and second output-index, judge whether the heat pump water-heating system occurs
Dry combustion method, including：
If the absolute difference between the first output water-carrying capacity and the second output water-carrying capacity is more than or equal to the first predetermined threshold,
Then judge that dry combustion method occurs in the heat pump water-heating system；
If the absolute difference between the first output water-carrying capacity and the second output water-carrying capacity is less than the first predetermined threshold, sentence
The fixed heat pump water-heating system is normally run.
3. method according to claim 1, it is characterised in that if the output-index is power output, the basis
Absolute difference between first output-index and second output-index, judges whether the heat pump water-heating system occurs doing
Burn, including：
If the absolute difference between first power output and second power output is more than or equal to the second predetermined threshold, sentence
There is dry combustion method in the fixed heat pump water-heating system；
If the absolute difference between first power output and second power output is less than the second predetermined threshold, institute is judged
Heat pump water-heating system is stated normally to run.
4. the method according to claim any one of 1-3, it is characterised in that the acquisition DC frequency-changing water pump is
The first output-index under one rotating speed, including：
Obtain the DC frequency-changing water pump in the first predetermined amount of time according to the first rotation speed operation when average output-index；Its
In, the average output-index includes average output water-carrying capacity and average output power.
5. the method according to claim any one of 1-3, it is characterised in that the acquisition DC frequency-changing water pump is
The second output-index under two rotating speeds, including：
Obtain the DC frequency-changing water pump in the second predetermined amount of time according to the second rotation speed operation when average output-index；Its
In, the average output-index includes average output water-carrying capacity and average output power.
6. a kind of heat pump water-heating system dry combustion method decision maker, it is characterised in that including：
Control module, for controlling the DC frequency-changing water pump in heat pump water-heating system according to the first rotation speed operation, and obtains described
First output-index of the DC frequency-changing water pump under the first rotating speed, controls the DC frequency-changing water pump according to the second rotation speed operation,
And obtain second output-index of the DC frequency-changing water pump under the second rotating speed；
Determination module, between first output-index obtained according to the control module and second output-index
Absolute difference, judges whether the heat pump water-heating system dry combustion method occurs；
Wherein, output-index include output water-carrying capacity and power output, the output-index include first output-index and
Second output-index.
7. device according to claim 6, it is characterised in that if when the output-index is for output water-carrying capacity, it is described to sentence
Cover half block, specifically for：
If the absolute difference between the first output water-carrying capacity and the second output water-carrying capacity is more than or equal to the first predetermined threshold,
Then judge that dry combustion method occurs in the heat pump water-heating system；
If the absolute difference between the first output water-carrying capacity and the second output water-carrying capacity is less than the first predetermined threshold, sentence
The fixed heat pump water-heating system is normally run.
8. device according to claim 6, it is characterised in that if the output-index is power output, the judgement
Module, specifically for：
If the absolute difference between first power output and second power output is more than or equal to the second predetermined threshold, sentence
There is dry combustion method in the fixed heat pump water-heating system；
If the absolute difference between first power output and second power output is less than the second predetermined threshold, institute is judged
Heat pump water-heating system is stated normally to run.
9. the device according to claim any one of 6-8, it is characterised in that the control module, is additionally operable to：
Obtain the DC frequency-changing water pump in the first predetermined amount of time according to the first rotation speed operation when average output-index；Its
In, the average output-index includes average output water-carrying capacity and average output power.
10. the device according to claim any one of 6-8, it is characterised in that the control module, is additionally operable to：
Obtain the DC frequency-changing water pump in the second predetermined amount of time according to the second rotation speed operation when average output-index；Its
In, the average output-index includes average output water-carrying capacity and average output power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710102916.1A CN106839085B (en) | 2017-02-24 | 2017-02-24 | A kind of heat pump water-heating system dry combustion method determination method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710102916.1A CN106839085B (en) | 2017-02-24 | 2017-02-24 | A kind of heat pump water-heating system dry combustion method determination method and device |
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| EP0902239A2 (en) * | 1997-09-13 | 1999-03-17 | OTTO HEAT Heizungs-, Energie- und Anlagentechnik GmbH & Co., KG | Fluid actuated pressure control device |
| CN103671047A (en) * | 2013-12-13 | 2014-03-26 | 新界泵业集团股份有限公司 | Electric pump with controller and control method of electric pump |
| US20140291108A1 (en) * | 2010-10-02 | 2014-10-02 | Ford Global Technologies, Llc | Dry-clutch transmission with cooling techniques |
| CN105275791A (en) * | 2015-11-13 | 2016-01-27 | 皇明太阳能股份有限公司 | Automatic water pump operation fault removal and control method |
| CN105696650A (en) * | 2016-03-30 | 2016-06-22 | 唐若权 | Intelligent water supply system with hot water supply function |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP0902239A2 (en) * | 1997-09-13 | 1999-03-17 | OTTO HEAT Heizungs-, Energie- und Anlagentechnik GmbH & Co., KG | Fluid actuated pressure control device |
| US20140291108A1 (en) * | 2010-10-02 | 2014-10-02 | Ford Global Technologies, Llc | Dry-clutch transmission with cooling techniques |
| CN103671047A (en) * | 2013-12-13 | 2014-03-26 | 新界泵业集团股份有限公司 | Electric pump with controller and control method of electric pump |
| CN105275791A (en) * | 2015-11-13 | 2016-01-27 | 皇明太阳能股份有限公司 | Automatic water pump operation fault removal and control method |
| CN105696650A (en) * | 2016-03-30 | 2016-06-22 | 唐若权 | Intelligent water supply system with hot water supply function |
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