CN106801912A - The water line block detection method and device of a kind of heat pump water-heating system - Google Patents
The water line block detection method and device of a kind of heat pump water-heating system Download PDFInfo
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- CN106801912A CN106801912A CN201710065849.0A CN201710065849A CN106801912A CN 106801912 A CN106801912 A CN 106801912A CN 201710065849 A CN201710065849 A CN 201710065849A CN 106801912 A CN106801912 A CN 106801912A
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- water
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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
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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
- F24D2200/00—Heat sources or energy sources
- F24D2200/12—Heat pump
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- 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)
Abstract
The water line block detection method and device of a kind of heat pump water-heating system provided in an embodiment of the present invention, it is related to an electro-technical field, solving increases hardware device and causes the design and wiring of the existing heat pump water-heating system using exchange water pump complicated, and cannot accurate feedback heat pump water-heating system working condition problem.The method is specifically included：Obtain output-index of the DC frequency-changing water pump under current rotating speed in the current operating parameter and heat pump water-heating system of heat pump water-heating system；From water-carrying capacity list, the target output-index that the DC frequency-changing water pump matched with current operating parameter is exported under current rotating speed is searched；The target output-index of output-index and DC frequency-changing water pump according to DC frequency-changing water pump under current rotating speed under current rotating speed, judges whether the water route of heat pump water-heating system blocks.
Description
Technical field
The present invention relates to family's electro-technical field, more particularly to a kind of heat pump water-heating system water line block detection method and dress
Put.
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 can be caused to break down, e.g., water route build-up of limescale, icing, water valve closing occur
And water pipe bending etc. unusual condition, so as to cause heat pump water-heating system water route occur block, so as to influence water heating product
Heating effect.In order to ensure the reliability of heat pump water-heating system, it is necessary to the working condition to heat pump water-heating system is examined in time
Survey, 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 water line block judgement is carried out to feed back the working condition of heat pump water-heating system.
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 accurate feedback heat pump hot-water heating system
The working condition of system.
The content of the invention
The water line block detection method and device of a kind of heat pump water-heating system are the embodiment of the invention provides, to solve to increase
Hardware device causes the design and wiring of the existing heat pump water-heating system using exchange water pump complicated, and cannot accurate feedback
The problem of the working condition of heat pump water-heating system.
To reach above-mentioned purpose, the embodiment of the present invention is adopted the following technical scheme that：
A kind of first aspect, there is provided water line block detection method of heat pump water-heating system, including：
DC frequency-changing water pump is being worked as in obtaining the current operating parameter and the heat pump water-heating system of heat pump water-heating system
Output-index under preceding rotating speed；Wherein, the output-index includes output water-carrying capacity or power output；
From water-carrying capacity list, lookup is working as forward with the DC frequency-changing water pump that the current operating parameter matches
Lower the exported target output-index of speed；Wherein, the water-carrying capacity list includes：In the difference operation of the heat pump water-heating system
Under parameter, output-index of the DC frequency-changing water pump under different rotating speeds；
Output-index and the DC frequency-changing water pump according to the DC frequency-changing water pump under current rotating speed are working as forward
Target output-index under speed, judges whether the water route of the heat pump water-heating system blocks.
A kind of second aspect, there is provided water line block detection means of heat pump water-heating system, including：
Acquisition module, for direct current in the current operating parameter and the heat pump water-heating system that obtain heat pump water-heating system
Output-index of the variable frequency pump under current rotating speed；Wherein, the output-index includes output water-carrying capacity or power output；
Searching modul, for from water-carrying capacity list, searching the current operating parameter obtained with the acquisition module
The target output-index that the DC frequency-changing water pump for matching is exported under current rotating speed；Wherein, the water-carrying capacity list
Including：Under the different operational factors of the heat pump water-heating system, output of the DC frequency-changing water pump under different rotating speeds refers to
Mark；
Judge module, the output for the DC frequency-changing water pump that is obtained according to the acquisition module under current rotating speed
Output-index of the DC frequency-changing water pump that index and the searching modul find out under current rotating speed, judges the heat pump
Whether the water route of water-heating system blocks.
The scheme that the application is provided, controllable straight of rotating speed is replaced with by the AC frequency conversion water pump in existing heat pump water-heating system
Stream variable frequency pump, by DC frequency-changing water pump in the current operating parameter and the heat pump water-heating system that obtain heat pump water-heating system
Output-index under current rotating speed, from water-carrying capacity list, searches the DC frequency-changing water pump matched with current operating parameter
The target output-index exported under current rotating speed, output-index and direct current by DC frequency-changing water pump under current rotating speed become
Target output-index of the frequency water pump under current rotating speed is compared, and according to comparing result, judging the water route of heat pump water-heating system is
No blocking, so as to realize feeding back the working condition of heat pump water-heating system.The application does not increase compared to prior art
Plus hardware device, and feedback of status is operated using hardware device, therefore the heat pump water-heating system that the application is provided is not required to
Design and wiring that will be complicated, accuracy low problem when it also avoid feeding back its working condition.
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.
A kind of water line block detection method schematic diagram of heat pump water-heating system that Fig. 1 is provided for the embodiment of the present application；
Fig. 2 is a kind of water line block detection method flow chart of heat pump water-heating system provided in an embodiment of the present invention；
Fig. 3 is a kind of water line block structure of the detecting device schematic diagram of heat pump water-heating system provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the present patent application embodiment, the technical scheme in the present patent application embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present patent application, rather than whole
Embodiment.Based on the embodiment in the present patent application, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the present patent application protection.
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 water line block detection method of heat pump water-heating system, such as Fig. 1
Shown, the method comprises the following steps：
101st, DC frequency-changing water pump is being worked as in obtaining the current operating parameter and heat pump water-heating system of heat pump water-heating system
Output-index under preceding rotating speed.
Exemplary, above-mentioned output-index includes the output water-carrying capacity or power output of the DC frequency-changing water pump, wherein,
Output water refers to the volume that DC frequency-changing water pump conveys water within the unit interval；Power output refers to DC frequency-changing water pump
Shaft power.Above-mentioned current operating parameter includes various trip informations of the heat pump water-heating system, operational factor letter
Breath is included but is not limited to：The outdoor environment temperature of the heat pump water-heating system, indoor environment temperature, compressor exhaust temperature, user
Design temperature, leaving water temperature, return water temperature, compressor operating frequency etc..
It should be noted that direct current becomes in the current operating parameter and heat pump water-heating system for obtain heat pump water-heating system
Before output-index of the frequency water pump under current rotating speed, heat pump water-heating system needs to run regular time, it is ensured that heat pump hot-water heating
System stable operation.
102nd, from water-carrying capacity list, the DC frequency-changing water pump that lookup matches with current operating parameter is under current rotating speed
The target output-index for being exported.
Water-carrying capacity list in the application is included under the different operational factors of heat pump water-heating system, and DC frequency-changing water pump exists
Output-index under different rotating speeds, i.e., under the different service conditions of heat pump water-heating system, DC frequency-changing water pump is in different rotating speeds
Under output-index, as shown in table 1.
Table 1
Exemplary, the service condition in above-mentioned table 1 can be by one or more of heat pump water-heating system operation ginseng
The rotating speed of number information and DC frequency-changing water pump is showed, if for example, A11, A12 are used to represent the heat pump water-heating system in difference
Compressor operating frequency under run, then A11, A12 can use outdoor environment temperature, indoor environment temperature and compressor
Running frequency is represented.Wherein, above-mentioned A11, A12, A13...... represent different operational factors, and above-mentioned Q11 is used for table
Show output-index of the DC frequency-changing water pump under rotating speed S11, S12, S13 represent the rotating speed of different DC frequency-changing water pump.
It should be noted that the corresponding parameter information of various service conditions and the service condition in the water-carrying capacity list
Corresponding output-index, is recorded when the water route of the heat pump water-heating system is normally run.
Exemplary, the application will can be included in current operating parameter and water-carrying capacity list when step 102 is performed
The corresponding operational factor of service condition is compared, find with the immediate operational factor of current operating parameter, and will find
The corresponding DC water pump of immediate operational factor output-index, as the target of the DC water pump under current operating parameter
Output-index.If for example, the current operating parameter of the heat pump water-heating system includes the interior that the heat pump water-heating system is presently in
The current running frequency F1 of compressor in environment temperature T1, outdoor environment temperature T2 and the heat pump water-heating system, then this Shen
Please from the corresponding operational factor of all service conditions in water-carrying capacity list, find comprising compressor operating frequency and
Comprising the first operational factor for being matched with frequency F1 of compressor operating frequency, then, from the first operational factor, find
Comprising indoor environment temperature and outdoor environment temperature and comprising indoor environment temperature and outdoor environment temperature and temperature T1,
The second operational factor that T2 matches, then, from the second operational factor, what lookup was matched with the current rotating speed of DC frequency-changing water pump
The output-index of DC frequency-changing water pump, and the output of the DC frequency-changing water pump matched with the current rotating speed of DC frequency-changing water pump is referred to
It is target output-index to be denoted as.
103rd, the output-index and DC frequency-changing water pump according to DC frequency-changing water pump under current rotating speed are under current rotating speed
Target output-index, judge whether the water route of heat pump water-heating system blocks.
Exemplary, because when the water route of heat pump water-heating system is normally run, DC frequency-changing water pump is under current rotating speed
Output-index it is substantially stationary constant, when the water line block of heat pump water-heating system, DC frequency-changing water pump is under current rotating speed
Output-index can have greatly changed, therefore, can be by output-index and direct current of the DC frequency-changing water pump under current rotating speed
Absolute difference between target output-index of the variable frequency pump under current rotating speed judges whether the water route of heat pump water-heating system is blocked up
Plug.
Specifically, the water line block detection method flow chart of the heat pump water-heating system shown in reference picture 2, by the heat pump hot-water heating
DC frequency-changing water pump current output-index Q0 of the system under the corresponding service condition A0 of current operating parameter, arranges with from water-carrying capacity
Absolute difference between the output-index Q1i ' of the DC frequency-changing water pump for matching found in table, i.e. | Q0-Q1i ' | is and predetermined
The relation of threshold value Δ Q, wherein, above-mentioned predetermined threshold value for heat pump water-heating system normally run when, DC frequency-changing water pump works as forward
The maximum offset that output-index under speed is allowed.If specifically, | Q0-Q1i ' | ＞ Δ Q, judge heat pump water-heating system
Water line block；If | Q0-Q1i ' |≤Δ Q, judge that the water route of heat pump water-heating system is normal.
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 target output water-carrying capacity and DC frequency-changing water pump of 103a1, DC frequency-changing water pump under current rotating speed are current
When the absolute difference between output water-carrying capacity under rotating speed is more than the first predetermined threshold, then judge that the water route of heat pump water-heating system is blocked up
Plug.
If the target output water-carrying capacity and DC frequency-changing water pump of 103a2, DC frequency-changing water pump under current rotating speed are current
When the absolute difference between output water-carrying capacity under rotating speed is less than or equal to the first predetermined threshold, then the water route of heat pump water-heating system is judged
Normally.
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 target output and DC frequency-changing water pump of 103b1, DC frequency-changing water pump under current rotating speed are working as forward
When the absolute difference between power output under speed is more than the second predetermined threshold, then the water line block of heat pump water-heating system is judged.
If the target output and DC frequency-changing water pump of 103b2, DC frequency-changing water pump under current rotating speed are working as forward
When the absolute difference between power output under speed is less than or equal to the second predetermined threshold, then the water route of heat pump water-heating system is being judged just
Often.
Exemplary, when the water line block 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.
The scheme that the application is provided, controllable straight of rotating speed is replaced with by the AC frequency conversion water pump in existing heat pump water-heating system
Stream variable frequency pump, by DC frequency-changing water pump in the current operating parameter and the heat pump water-heating system that obtain heat pump water-heating system
Output-index under current rotating speed, from water-carrying capacity list, searches the DC frequency-changing water pump matched with current operating parameter
The target output-index exported under current rotating speed, output-index and direct current by DC frequency-changing water pump under current rotating speed become
Target output-index of the frequency water pump under current rotating speed is compared, and according to comparing result, judging the water route of heat pump water-heating system is
No blocking, so as to realize feeding back the working condition of heat pump water-heating system.The application does not increase compared to prior art
Plus hardware device, and feedback of status is operated using hardware device, therefore the heat pump water-heating system that the application is provided is not required to
Design and wiring that will be complicated, accuracy low problem when it also avoid feeding back its working condition.
Optionally, due to the difference of different DC frequency-changing water pump feedacks, some DC frequency-changing water pumps feedback
Information is the output water-carrying capacity under current rotating speed of DC frequency-changing water pump, and some DC frequency-changing water pump feedacks are straight
The power of variable frequency pump is flowed, when the feedback information of DC frequency-changing water pump is the power of DC frequency-changing water pump, can be according to direct current
Power output of the variable frequency pump under current rotating speed, calculates output water-carrying capacity of the DC frequency-changing water pump under current rotating speed.
Optionally, in order to improve the application offer heat pump water-heating system water line block detection method accuracy, can
To repeat implementation above-mentioned steps 101, step 102 and step 103 are detected to whether the water route of heat pump water-heating system blocks,
I.e. after step 103, specifically：
104th, DC frequency-changing water pump in the current operating parameter and heat pump water-heating system of heat pump water-heating system is reacquired
Output-index under current rotating speed.
105th, from water-carrying capacity list, the DC frequency-changing water pump matched with current operating parameter is searched again and is working as forward
Target output-index under speed.
106th, according to output-index of the DC frequency-changing water pump under current rotating speed for reacquiring and the direct current searched again
Target output-index of the variable frequency pump under current rotating speed, whether the water route for rejudging heat pump water-heating system blocks.
It should be noted that method and step that whether the water route that heat pump water-heating system is rejudged in the present embodiment blocks
The deterministic process of 101- steps 103 is similar to, and will not be repeated here.
Exemplary, direct current becomes in the current operating parameter and heat pump water-heating system for reacquire heat pump water-heating system
During output-index of the frequency water pump under current rotating speed, can the carrying out of cycle to schedule obtain, it is also possible to base
In the instruction of user instruction, obtained according to user's request is acyclic.So to the current operation of heat pump water-heating system
Output-index of the DC frequency-changing water pump under current rotating speed carries out that acquisition is repeated several times in parameter and heat pump water-heating system, so that
The water route of heat pump water-heating system can be carried out repeatedly blocking and judged, improve the detection effect of the water line block of heat pump water-heating system
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 repetitive process
In the result of the middle water line block for judging heat pump water-heating system, as a result for the number of times for blocking reaches pre-determined number, then heat pump is judged
The water line block of water-heating system.In order to prevent the heat pump water-heating system caused by the water line block of heat pump water-heating system from damaging,
After judging the water line block of heat pump water-heating system, forced stoppage is implemented to heat pump water-heating system.
A kind of water line block detection means of heat pump water-heating system of embodiments of the invention, as shown in figure 3, the device bag
Include：Acquisition module 21, searching modul 22 and judge module 23, wherein：
Acquisition module 21, becomes for direct current in the current operating parameter and heat pump water-heating system that obtain heat pump water-heating system
Output-index of the frequency water pump under current rotating speed；Wherein, output-index includes output water-carrying capacity or power output.
Searching modul 22, for from water-carrying capacity list, searching the current operating parameter phase obtained with acquisition module 21
The target output-index that the DC frequency-changing water pump matched somebody with somebody is exported under current rotating speed；Wherein, water-carrying capacity list includes：In heat pump water
Under the different operational factors of heating system, output-index of the DC frequency-changing water pump under different rotating speeds.
Judge module 23, the output-index for the DC frequency-changing water pump that is obtained according to acquisition module 21 under current rotating speed
Target output-index of the DC frequency-changing water pump found out with searching modul 22 under current rotating speed, judges heat pump water-heating system
Whether water route blocks.
Optionally, if output-index for output water-carrying capacity, judge module 23 specifically for：
If target output water-carrying capacity of the DC frequency-changing water pump that searching modul 22 finds out under current rotating speed and acquisition mould
When absolute difference of the DC frequency-changing water pump that block 21 is obtained between the output water-carrying capacity under current rotating speed is more than the first predetermined threshold,
Then judge the water line block of heat pump water-heating system.
If target that the DC frequency-changing water pump that searching modul 22 finds out is exported under current rotating speed output water-carrying capacity with
Absolute difference between output water-carrying capacity of the DC frequency-changing water pump that acquisition module 21 is obtained under current rotating speed is less than or equal to first
During predetermined threshold, then judge that the water route of heat pump water-heating system is normal.
Optionally, if output-index be power output, judge module 23 specifically for：
If target output and acquisition module of the DC frequency-changing water pump that searching modul 22 finds out under current rotating speed
When absolute difference of the 21 DC frequency-changing water pumps for obtaining between the power output under current rotating speed is more than the second predetermined threshold, then sentence
Determine the water line block of heat pump water-heating system.
If target output and acquisition module of the DC frequency-changing water pump that searching modul 22 finds out under current rotating speed
When absolute difference of the 21 DC frequency-changing water pumps for obtaining between the power output under current rotating speed is less than or equal to the first predetermined threshold,
Then judge that the water route of heat pump water-heating system is normal.
Optionally, the DC frequency-changing water pump in heat pump water-heating system is obtained of acquisition module 21 is exported under current rotating speed
During water-carrying capacity, specifically for：
Power output of the DC frequency-changing water pump under current rotating speed is obtained, and according to DC frequency-changing water pump under current rotating speed
Power output, calculate the water-carrying capacity that DC frequency-changing water pump is exported under current rotating speed.
The scheme that the application is provided, controllable straight of rotating speed is replaced with by the AC frequency conversion water pump in existing heat pump water-heating system
Stream variable frequency pump, by DC frequency-changing water pump in the current operating parameter and the heat pump water-heating system that obtain heat pump water-heating system
Output-index under current rotating speed, from water-carrying capacity list, searches the DC frequency-changing water pump matched with current operating parameter
The target output-index exported under current rotating speed；Output-index and direct current by DC frequency-changing water pump under current rotating speed become
Target output-index of the frequency water pump under current rotating speed is compared, and according to comparing result, judging the water route of heat pump water-heating system is
No blocking, so as to realize feeding back the working condition of heat pump water-heating system.The application does not increase compared to prior art
Plus hardware device, and feedback of status is operated using hardware device, therefore the heat pump water-heating system that the application is provided is not required to
Design and wiring that will be complicated, accuracy low problem when it also avoid feeding back its working condition.
It should be noted that during implementing, heat pump hot-water heating system in above-mentioned method flow as shown in Figure 1 and Figure 2
The performed each step of system can be by the computer of the software form of storage in the computing device memory of example, in hardware
Execute instruction realizes that, to avoid repeating, here is omitted.And the journey corresponding to the action performed by above-mentioned heat pump water-heating system
Sequence can be stored in the memory of the heat pump water-heating system in a software form, in order to processor call execution more than each
The corresponding operation of module.
Memory above can include volatile memory (volatile memory), such as random access memory
Device (random-access memory, RAM)；Nonvolatile memory (non-volatile memory), example can also be included
Such as read-only storage (read-only memory, ROM), flash memory (flash memory), hard disk (hard disk
Drive, HDD) or solid state hard disc (solid-state drive, SSD)；The combination of the memory of mentioned kind can also be included.
Processor in device presented above can be the system of a processor, or multiple treatment elements
Claim.For example, processor can be central processing unit (central processing unit, CPU；Can also be other general places
Reason device, digital signal processor (digital signal processing, DSP), application specific integrated circuit (application
Specific integrated circuit, ASIC), field programmable gate array (field-programmable gate
Array, FPGA) or other PLDs, discrete gate or transistor logic, discrete hardware components etc..It is logical
Can be microprocessor with processor or the processor can also be any conventional processor etc.；Can also be dedicated processes
Device, the application specific processor can be including at least one of baseband processing chip, radio frequency processing chip etc..
It is apparent to those skilled in the art that, for convenience and simplicity of description, the equipment of foregoing description
With the specific work process of module, the corresponding process in preceding method embodiment is may be referred to, will not be repeated here.
In several embodiments provided herein, it should be understood that disclosed method and apparatus, can be by it
Its mode is realized.For example, embodiments described above is only schematical, for example, the division of the module, is only only
A kind of division of logic function, can there is other dividing mode when actually realizing, such as multiple module or components 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 the INDIRECT COUPLING or communication link of device or unit by some interfaces
Connect, can be electrical, mechanical or other forms.
The module that is illustrated as separating component can be or may not be it is physically separate, it is aobvious as module
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.
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 (8)
1. a kind of water line block detection method of heat pump water-heating system, it is characterised in that including：
DC frequency-changing water pump is working as forward in obtaining the current operating parameter and the heat pump water-heating system of heat pump water-heating system
Output-index under speed；Wherein, the output-index includes output water-carrying capacity or power output；
From water-carrying capacity list, the DC frequency-changing water pump that lookup matches with the current operating parameter is under current rotating speed
Target output-index；Wherein, the water-carrying capacity list includes：Under the different operational factors of the heat pump water-heating system, institute
State output-index of the DC frequency-changing water pump under different rotating speeds；
Output-index and the DC frequency-changing water pump according to the DC frequency-changing water pump under current rotating speed is under current rotating speed
Target output-index, judge whether the water route of the heat pump water-heating system blocks.
2. method according to claim 1, it is characterised in that if when the output-index is for output water-carrying capacity, it is described to sentence
Whether the water route of the heat pump water-heating system of breaking blocks, including：
If target output water-carrying capacity of the DC frequency-changing water pump under current rotating speed is working as forward with the DC frequency-changing water pump
When the absolute difference between output water-carrying capacity under speed is more than the first predetermined threshold, then judge that the water route of the heat pump water-heating system is blocked up
Plug；
If target output water-carrying capacity of the DC frequency-changing water pump under current rotating speed is working as forward with the DC frequency-changing water pump
When the absolute difference between output water-carrying capacity under speed is less than or equal to first predetermined threshold, then the heat pump water-heating system is judged
Water route it is normal.
3. method according to claim 1, it is characterised in that if the output-index is power output, the judgement
Whether the water route of the heat pump water-heating system blocks, including：
If target output of the DC frequency-changing water pump under current rotating speed is with the DC frequency-changing water pump in current rotating speed
Under power output between absolute difference be more than the second predetermined threshold when, then judge the water line block of the heat pump water-heating system；
If target output of the DC frequency-changing water pump under current rotating speed is with the DC frequency-changing water pump in current rotating speed
Under power output between absolute difference be less than or equal to second predetermined threshold when, then judge the water of the heat pump water-heating system
Road is normal.
4. method according to claim 2, it is characterised in that DC frequency-changing water pump exists in the acquisition heat pump water-heating system
Water-carrying capacity is exported under current rotating speed, including：
Power output of the DC frequency-changing water pump under current rotating speed is obtained, and forward is being worked as according to the DC frequency-changing water pump
Power output under speed, calculates output water-carrying capacity of the DC frequency-changing water pump under current rotating speed.
5. a kind of water line block detection means of heat pump water-heating system, it is characterised in that including：
Acquisition module, for DC frequency-changing in the current operating parameter and the heat pump water-heating system that obtain heat pump water-heating system
Output-index of the water pump under current rotating speed；Wherein, the output-index includes output water-carrying capacity or power output；
Searching modul, for from water-carrying capacity list, searching the current operating parameter phase obtained with the acquisition module
The target output-index that the DC frequency-changing water pump matched somebody with somebody is exported under current rotating speed；Wherein, the water-carrying capacity list includes：
Under the different operational factors of the heat pump water-heating system, output-index of the DC frequency-changing water pump under different rotating speeds；
Judge module, the output-index for the DC frequency-changing water pump that is obtained according to the acquisition module under current rotating speed
Target output-index of the DC frequency-changing water pump found out with the searching modul under current rotating speed, judges the heat pump
Whether the water route of water-heating system blocks.
6. device according to claim 5, it is characterised in that if when the output-index is for output water-carrying capacity, it is described to sentence
Disconnected module specifically for：
If the DC frequency-changing water pump that the searching modul finds out under current rotating speed target output water-carrying capacity with it is described
Absolute difference between output water-carrying capacity of the DC frequency-changing water pump that acquisition module is obtained under current rotating speed is pre- more than first
When determining threshold value, then the water line block of the heat pump water-heating system is judged；
If the target output water-carrying capacity that the DC frequency-changing water pump that the searching modul finds out is exported under current rotating speed
Absolute difference between output water-carrying capacity of the DC frequency-changing water pump obtained with the acquisition module under current rotating speed is less than
During equal to first predetermined threshold, then judge that the water route of the heat pump water-heating system is normal.
7. device according to claim 5, it is characterised in that if the output-index is power output, the judgement
Module specifically for：
If target output of the DC frequency-changing water pump that the searching modul finds out under current rotating speed is obtained with described
Absolute difference between power output of the DC frequency-changing water pump that modulus block is obtained under current rotating speed is more than the second predetermined threshold
During value, then the water line block of the heat pump water-heating system is judged；
If target output of the DC frequency-changing water pump that the searching modul finds out under current rotating speed is obtained with described
Absolute difference between power output of the DC frequency-changing water pump under current rotating speed that modulus block is obtained is less than or equal to described the
During one predetermined threshold, then judge that the water route of the heat pump water-heating system is normal.
8. device according to claim 6, it is characterised in that acquisition module direct current in heat pump water-heating system is obtained
During the water-carrying capacity that variable frequency pump is exported under current rotating speed, specifically for：
Power output of the DC frequency-changing water pump under current rotating speed is obtained, and forward is being worked as according to the DC frequency-changing water pump
Power output under speed, calculates the water-carrying capacity that the DC frequency-changing water pump is exported under current rotating speed.
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| CN109357442A (en) * | 2018-12-14 | 2019-02-19 | 珠海格力电器股份有限公司 | Heat pump system and control method |
| CN112664998A (en) * | 2021-01-11 | 2021-04-16 | 青岛海信日立空调***有限公司 | Multi-connected heat pump water heating system and control method thereof |
| CN112973257A (en) * | 2021-02-18 | 2021-06-18 | 珠海格力电器股份有限公司 | Filter element anti-blocking detection method and device, storage medium and water purification equipment |
| CN113803643A (en) * | 2020-06-17 | 2021-12-17 | 杭州九阳小家电有限公司 | Pipeline detection method of food processor |
| CN113907667A (en) * | 2020-07-07 | 2022-01-11 | 宁波方太厨具有限公司 | Dish washer blockage detection control method |
| CN118089252A (en) * | 2024-04-28 | 2024-05-28 | 宁波方太厨具有限公司 | Water heater equipment with scale detection function and scale detection method |
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