CN106568202A - Dry burning judgment method and device and water storage type heating device - Google Patents
Dry burning judgment method and device and water storage type heating device Download PDFInfo
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- CN106568202A CN106568202A CN201610982559.8A CN201610982559A CN106568202A CN 106568202 A CN106568202 A CN 106568202A CN 201610982559 A CN201610982559 A CN 201610982559A CN 106568202 A CN106568202 A CN 106568202A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
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Abstract
The invention is suitable the field of electronics and electrical appliances and provides a dry burning judgment method. The method includes the following steps that when after heating of a water storage type heating device is started, the current temperature rise velocity VT of the water storage type heating device within a preset current temperature rise time range is acquired; whether the current temperature rise velocity VT approaches a preset full-water temperature rise velocity VTy or approaches a preset dry burning temperature rise velocity VTe is judged; and when the current temperature rise velocity VT approaches the preset dry burning temperature rise velocity VTe, it is judged that the water storage type heating device is in a dry burning state. According to the dry burning judgment method provided by the embodiment of the invention, by judging whether the current temperature rise velocity VT approaches the preset dry burning temperature rise velocity VTe or not, when it is judged yes, it is judged that the water storage type heating device is in the dry burning state, a power source of a heater of the heating device can be automatically powered off, and the safety performance of the water storage type heating device is improved; and meanwhile, due to the design adopting only one temperature sensor, the production cost of the water storage type heating device is effectively saved.
Description
Technical field
The invention belongs to field of electronics, more particularly to a kind of dry combustion method decision method, device and water storage type firing equipment.
Background technology
At present, the water heater on market is multifarious, such as gas-type water heater, solar water heater, storage-type electric water heater
Deng with the development and the raising of living standards of the people of society, people prevent for the security requirement also more and more higher of water heater
Only storage-type electric water heater dry combustion method is people's one side of interest.
Storage-type electric water heater of the prior art, typically ensures the safety of storage-type electric water heater using the following two kinds mode
A kind of performance, mode is using two temperature sensors the dry-fire condition of water heater to be judged, detected；Another way is
By a temperature sensor and a level sensor dry-fire condition of water heater is judged, detected.
But, the anti-dry mode of existing storage-type electric water heater is although feasible, or but because its dry combustion method detection passes through
Or at least two temperature sensors, the inspection that temperature or water level are realized by a temperature sensor and level sensor
Survey, it is necessary to while ensureing that two testing equipments occur without failure, there is hardware failure risk greatly and production cost
High problem.
The content of the invention
The embodiment of the present invention provides a kind of dry combustion method decision method, it is intended to solve water storage type water heater using multiple sensors,
There is a problem of that hardware failure risk is big and production high cost.
The embodiment of the present invention is achieved in that a kind of dry combustion method decision method, and methods described comprises the steps：
After the water storage type firing equipment starts heating, the water storage type firing equipment is obtained in default current intensification
Time range t0Interior current heating rate VT；
Judge current heating rate VTJie Jin default full water heating rate VTyOr heat up Jie Jin default dry combustion method
Speed VTe；
When current heating rate VTWith default dry combustion method heating rate VTeWhen close, then the water storage type heating is judged
Equipment is in dry-fire condition.
The embodiment of the present invention also provides a kind of dry combustion method decision maker, and described device includes：
Current heating rate acquiring unit, for after the water storage type firing equipment starts heating, obtaining the water storage
Type firing equipment is in default current heating-up time scope t0Interior current heating rate VT；
The close judging unit of heating rate, for judging current heating rate VTJie Jin default full water heating rate
VTyOr Jie Jin default dry combustion method heating rate VTe；And
Dry combustion method identifying unit, for when current heating rate VTWith default dry combustion method heating rate VTeWhen close, then
Judge that the water storage type firing equipment is in dry-fire condition.
The embodiment of the present invention also provides a kind of water storage type firing equipment, and the water storage type firing equipment includes：
Storage tank；
One temperature sensor for being used to detect the temperature of water in the storage tank；And
The temperature data of the temperature sensor detection is received, and the dry combustion method of dry combustion method judgement is carried out according to the temperature data
Decision maker, the dry combustion method judgment means include：
Current heating rate acquiring unit, for after the water storage type firing equipment starts heating, obtaining the water storage
Type firing equipment is in default current heating-up time scope t0Interior current heating rate VT；
The close judging unit of heating rate, for judging current heating rate VTJie Jin default full water heating rate
VTyOr Jie Jin default dry combustion method heating rate VTe；And
Dry combustion method identifying unit, for when current heating rate VTWith default dry combustion method heating rate VTeWhen close, then
Judge that the water storage type firing equipment is in dry-fire condition.
Dry combustion method decision method provided in an embodiment of the present invention, by using a temperature sensor the current intensification is judged
Speed VTWhether Jie Jin default dry combustion method heating rate VTe, when judging to be, then judge that water storage type firing equipment is in dry combustion method shape
State, the heater of firing equipment can automatically cut off power supply, and detection sensitivity is higher, improve the safety of water storage type firing equipment
Performance；Meanwhile, only with the design of a temperature sensor, the production cost of effectively save water storage type firing equipment.
Description of the drawings
Fig. 1 is a kind of flowchart of dry combustion method decision method provided in an embodiment of the present invention；
Fig. 2 is current intensification of the acquisition water storage type firing equipment provided in an embodiment of the present invention in default time range
Speed VTFlowchart；
Fig. 3 is current heating rate V of judgement provided in an embodiment of the present inventionTJie Jin default full water heating rate VTy, also
It is Jie Jin default dry combustion method heating rate VTeFlowchart；
Fig. 4 is acquisition full water heating rate V provided in an embodiment of the present inventionTyFlowchart；
Fig. 5 is acquisition dry combustion method heating rate V provided in an embodiment of the present inventionTeFlowchart；
Fig. 6 is a kind of structural representation of dry combustion method decision maker provided in an embodiment of the present invention；
Fig. 7 is that a kind of structure of the current heating rate acquiring unit of dry combustion method decision maker provided in an embodiment of the present invention is shown
It is intended to；
Fig. 8 is that a kind of structure of the close judging unit of heating rate of dry combustion method decision maker provided in an embodiment of the present invention is shown
It is intended to；
Fig. 9 is the structural representation that a kind of dry combustion method of dry combustion method decision maker provided in an embodiment of the present invention judges subelement；
Figure 10 is a kind of structural representation of water storage type firing equipment provided in an embodiment of the present invention.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, and
It is not used in the restriction present invention.
Dry combustion method decision method provided in an embodiment of the present invention, by judging current heating rate VTWhether it is close to default
Dry combustion method heating rate VTe, when judging to be, then judge that water storage type firing equipment is in dry-fire condition, the heater of firing equipment
Power supply can be automatically cut off, the security performance of water storage type firing equipment is improve；Meanwhile, only with setting for temperature sensor
Meter, the production cost of effectively save water storage type firing equipment.
Dry combustion method determination methods provided in an embodiment of the present invention may be directly applied in water storage type firing equipment, to apply
The unit that hardware cell thereon, software unit or hardware are combined with software.
In embodiments of the present invention, water storage type firing equipment includes but is not limited to water storage type water heater, electric bottle, electric heating
Cup, insulating pot, electrothermal water-bath etc..
What Fig. 1 showed a kind of dry combustion method decision method provided in an embodiment of the present invention realizes flow process, and details are as follows：
In step S101, after water storage type firing equipment starts heating, obtain water storage type firing equipment and work as default
Front heating-up time scope t0Interior current heating rate VT。
In one embodiment of the invention, default current heating-up time scope t0Can be 1min, 1.5min,
2min, 2.5min, specifically can be set according to full water moisture storage capacity, heating power of water storage type firing equipment etc..
In step s 102, current heating rate V is judgedTJie Jin default full water heating rate VTyOr Jie Jin default
Dry combustion method heating rate VTe。
As one embodiment of the invention, default full water water heating rate VTyWith default dry combustion method heating rate VTeCan
Being that system is built-in；As another embodiment of the present invention, default full water water heating rate VTyHeat up with default dry combustion method
Speed VTeCan be that User Defined is arranged.
As a practice of the present invention, default full water heating rate VTyCan be 10 DEG C/min, 15 DEG C/min,
20 DEG C/min etc.；Dry combustion method heating rate VTeCan be 80 DEG C/min, 85 DEG C/min, 90 DEG C/min etc..It is appreciated that practice
In, under normal circumstances, default full water heating rate VTyIt is far smaller than dry combustion method heating rate VTe。
In step s 103, when current heating rate VTWith default dry combustion method heating rate VTeWhen close, then water storage is judged
Type firing equipment is in dry-fire condition.
In embodiments of the present invention, when current heating rate VTWith default dry combustion method heating rate VTeIt is such as current when close
Heating rate VTFor 75 DEG C/min, dry combustion method heating rate VTyFor 80 DEG C/min, then judge that water storage type firing equipment is in non-dry combustion method
State, water storage type firing equipment takes anti-dry to process, and such as automatically cuts off the power supply of heater, arranges alarm music, provides report
Alert indicator lamp etc., in case water storage type firing equipment burns out.
In step S104, when current heating rate VTWith default full water heating rate VTyWhen close, then water storage is judged
Type firing equipment is in non-dry-fire condition.
In embodiments of the present invention, when current heating rate VTWith default full water heating rate VTyIt is such as current when close
Heating rate VTFor 22 DEG C/min, full water heating rate VTyFor 20 DEG C/min, then judge that water storage type firing equipment is in non-dry combustion method
State, equipment can continue heating work.
Dry combustion method decision method provided in an embodiment of the present invention, by using a temperature sensor the current intensification is judged
Speed VTWhether Jie Jin default dry combustion method heating rate VTe, when judging to be, then judge that water storage type firing equipment is in dry combustion method shape
State, water storage type firing equipment can in time take anti-dry to process and such as cut off the electricity supply, sends alarm music, flicker alarm display lamp
Deng processing, the security performance of water storage type firing equipment is improve；Meanwhile, only with the design of a temperature sensor, effectively save
The about production cost of water storage type firing equipment.
Show referring to Fig. 2, in embodiments of the present invention, obtain water storage type firing equipment in default time range t0Interior works as
Front heating rate VTThe step of, including：
In step s 201, after water storage type firing equipment starts heating, current initial temperature value T is obtained1, and start meter
When；
In step S202, when the time of timing default current heating-up time scope t is reached0When, acquisition currently terminates
Temperature value T2；
In step S203, according to current initial temperature value T1, current end temp value T2And the default current heating-up time
Scope t0, calculate and obtain current heating rate VT。
In practice, after such as water storage type water heater is opened, system obtains the water temperature in the storage tank of water heater face to face
For 20 DEG C and start timing；When timing time reaches 1min, system obtains the temperature 50 C in current storage tank；System passes through
Calculate and obtain current heating rate VTFor (50 DEG C -20 DEG C)/1min=30 DEG C/min.
It is appreciated that in other embodiments of the present invention, current initial temperature value T1Can also be -10 DEG C, 0 DEG C, 10 DEG C,
30 DEG C etc., determine with specific reference to actual environment situation；Current heating-up time scope t0Can also be 0.5min, 1.5min, 2min,
3min, 4min etc., specifically can need to arrange according to user；Current end temp value T2Can also be 50 DEG C, 60 DEG C, 70 DEG C,
80 DEG C etc., specifically do not limit.
In embodiments of the present invention, by according to current initial temperature value T1, current end temp value T2And it is default current
Heating-up time scope t0, can quickly calculate current heating rate V of acquisitionT, equipment heating speed can be in real time obtained when in use
Degree.
Referring to Fig. 3, in embodiments of the present invention, current heating rate V is judgedTJie Jin default full water heating rate VTyAlso
It is Jie Jin default dry combustion method heating rate VTeThe step of, including：
In step S301, according to current heating rate VTWith default full water heating rate VTy, calculate and obtain current liter
Warm speed VTWith default full water heating rate VTyThe absolute value △ V of differenceTy
In step s 302, according to current heating rate VTWith default dry combustion method heating rate VTe, calculate and obtain current liter
Warm speed VTWith default dry combustion method heating rate VTeThe absolute value △ V of differenceTe；
In step S303, current heating rate V of comparisonTWith default full water heating rate VTyThe absolute value △ V of differenceTy
With current heating rate VTWith default dry combustion method heating rate VTeThe absolute value △ V of differenceTeSize；
In step s 304, when current heating rate VTWith default full water heating rate VTyThe absolute value △ V of differenceTyGreatly
In current heating rate VTWith default dry combustion method heating rate VTeThe absolute value △ V of differenceTeWhen, then judge the water storage type heating
Equipment is in dry-fire condition.
As a preferred embodiment of the present invention, when current heating rate VTWith default full water heating rate VTyDifference
Absolute value △ VTyMore than current heating rate VTWith default dry combustion method heating rate VTeThe absolute value △ V of differenceTeWhen, then sentence
The step of fixed water storage type firing equipment is in dry-fire condition includes：
When current heating rate VTWith default full water heating rate VTyThe absolute value △ V of differenceTyMore than the current speed that heats up
Rate VTWith default dry combustion method heating rate VTeThe absolute value △ V of differenceTeWhen, judge current heating rate VTWith default dry combustion method liter
Warm speed VTeThe absolute value △ V of differenceTeWhether default dry combustion method error amount is less than.
Used as a preferred embodiment of the present invention, default dry combustion method error amount is 5 DEG C/min, now can precisely be judged
Equipment is, enough in dry-fire condition, to prevent the generation judged by accident, it is ensured that equipment normal work.In other embodiments of the present invention, in advance
If dry combustion method error amount can also be 2 DEG C/min, 3 DEG C/min, 6 DEG C/min, 7 DEG C/min etc., specifically can be according to actual conditions
Select.
If the determination result is YES, then judge that water storage type firing equipment is in dry-fire condition.
In a practice of the present invention, such as current heating rate VTFor 74 DEG C/min, full water heating rate VTyFor
15 DEG C/min, dry combustion method heating rate VTeFor 75 DEG C/min, default dry combustion method error amount is 5 DEG C/min, then current heating rate VT
With full water heating rate VTyThe absolute value △ V of differenceTyFor (74-15)=59, current heating rate VTWith dry combustion method heating rate VTe
The absolute value △ V of differenceTeFor (75-74)=1 DEG C/min, △ VTy=59 are more than △ VTe=1 DEG C/min, and △ VTeFor=1
℃/min<Default dry combustion method error amount is 5 DEG C/min, then may determine that water storage type firing equipment in dry-fire condition, and heating sets
Standby heater can cut off the electricity supply at once, prevent equipment dry combustion method, improve equipment safety performance.
In step S305, when current heating rate VTWith default full water heating rate VTyThe absolute value △ V of differenceTyIt is little
In current heating rate VTWith default dry combustion method heating rate VTeThe absolute value △ V of differenceTeWhen, judge current heating rate VTWith
Default full water heating rate VTyThe absolute value △ V of differenceTyWhether default full water error amount is less than.
Used as a preferred embodiment of the present invention, default full water error amount is 5 DEG C/min, is now judged most accurately,
Effectively prevent the generation judged by accident, it is ensured that equipment normal work.In other embodiments of the present invention, default full water error amount may be used also
Being 1 DEG C/min, 2 DEG C/min, 6 DEG C/min, 7 DEG C/min etc..
In step S306, if the determination result is YES, then judge that water storage type firing equipment is in non-dry-fire condition.
In step S307, if judged result is no, other operations are performed.
In embodiments of the present invention, when judged result is no, represent that equipment has exception, or equipment performs other works
Make program, be not specifically described in this invention.
In embodiments of the present invention, by arranging default dry combustion method error amount and default full water error amount, can be more smart
Whether accurate detection water storage type firing equipment is in dry-fire condition, makes equipment detection accurately higher, improves equipment and uses safety
Property.
Referring to Fig. 4, in embodiments of the present invention, default full water heating rate VTyComprise the following steps acquisition：
In step S401, in water storage type firing equipment full water state, and start after heating, obtain full water initial temperature value
Ty1, and start timing.
In step S402, when the time of timing default full water heating-up time scope t is reachedyWhen, obtain full water and terminate
Temperature value Ty2；
In step S403, according to full water initial temperature value Ty1, full water end temp value Ty2And during default full water intensification
Between scope ty, calculate and obtain full water heating rate VTy。
As a practice of the present invention, during water heater full water state, start heater, full water initial temperature value Ty1
For 10 DEG C, when the time default full water heating-up time scope t of full water is reachedyFor 5min when, system obtain full water end temp value
Ty2For 75 DEG C, then full water heating rate V can be obtained by system-computedTy=(75-10)/5=13 DEG C/min.It is appreciated that at this
In invention other embodiment, full water initial temperature value Ty1It can also be 15 DEG C, 18 DEG C, 20 DEG C, 25 DEG C etc., with specific reference to actual feelings
Condition selects to determine；Default full water heating-up time scope tyCan also be for 2min, 3min, 4min, 6min etc., specifically can basis
User's request is adjusted；Full water end temp value Ty2Can also be 50 DEG C, 60 DEG C, 70 DEG C etc., specifically not limit.
In the present invention is implemented, by obtaining default full water heating-up time scope tyIt is interior, full water end temp value Ty2With
Full water initial temperature value Ty1Difference, and then obtain default full water heating rate VTy, computational methods are simple, convenience, make water storage
It is more convenient that type firing equipment anti-dry judges.
Referring to Fig. 5, in embodiments of the present invention, default dry combustion method heating rate VTeComprise the following steps acquisition：
In step S501, in water storage type firing equipment anhydrous state, and start after heating, obtain dry combustion method initial temperature value
Te1, and start timing；
In step S502, when the time of timing default dry combustion method heating-up time scope t is reachedeWhen, obtain dry combustion method and terminate
Temperature value Te2；
In step S503, according to dry combustion method initial temperature value Te1, dry combustion method end temp value Te2And during default dry combustion method intensification
Between scope ty, calculate and obtain default dry combustion method heating rate VTe。
As a practice of the present invention, during water heater anhydrous state, start heater, dry combustion method initial temperature value Te2
For 12 DEG C, when the time default dry combustion method heating-up time scope t is reachedeFor 1min when, system obtain dry combustion method end temp value Te2For
72 DEG C, then default dry combustion method heating rate V can be obtained by system-computedTe=(72-12)/1=70 DEG C/min.It is appreciated that
In other embodiments of the invention, dry combustion method initial temperature value Te1It can also be 13 DEG C, 14 DEG C, 15 DEG C, 16 DEG C etc., with specific reference to reality
Situation selects to determine；Default dry combustion method heating-up time scope teCan also be for 0.5min, 1.5min, 2min, 2.5min etc., specifically
Can be adjusted according to user's request；Dry combustion method end temp value Te2Can also be 73 DEG C, 74 DEG C, 75 DEG C, 76 DEG C etc., specifically not limit
It is fixed.
In the present invention is implemented, by obtaining default dry combustion method heating-up time scope teIt is interior, dry combustion method end temp value Te2With
Dry combustion method initial temperature value Te1Difference, and then obtain default dry combustion method heating rate VTe, the judgement of water storage type firing equipment anti-dry
More precisely, it is more convenient.
It will appreciated by the skilled person that realize that all or part of step in above-described embodiment method is can
To instruct the hardware of correlation come what is completed by program, described program can be stored in a computer read/write memory medium
In, described storage medium, such as ROM/RAM, disk, CD, flash memory disk.
Fig. 6 shows a kind of structure of dry combustion method decision maker provided in an embodiment of the present invention, for convenience of description, only illustrates
Part related to the present invention.
Dry combustion method decision maker 600 provided in an embodiment of the present invention includes：
Current heating rate acquiring unit 610, for after water storage type firing equipment starts heating, obtaining water storage type heating
Equipment is in default current heating-up time scope t0Interior current heating rate VT。
In one embodiment of the invention, default current heating-up time scope t0Can be 1min, 1.5min,
2min, 2.5min, specifically can be set according to actual conditions.
The close judging unit 620 of heating rate, for judging current heating rate VTJie Jin default full water heating rate
VTyOr Jie Jin default dry combustion method heating rate VTe。
As one embodiment of the invention, default full water water heating rate VTyWith default dry combustion method heating rate VTeCan
Being that system is built-in；As another embodiment of the present invention, default full water water heating rate VTyHeat up with default dry combustion method
Speed VTeCan be that User Defined is arranged.
As a practice of the present invention, default full water heating rate VTyCan be 10 DEG C/min, 15 DEG C/min,
20 DEG C/min etc.；Dry combustion method heating rate VTeCan be 80 DEG C/min, 85 DEG C/min, 90 DEG C/min etc..It is appreciated that practice
In, under normal circumstances, default full water heating rate VTyIt is slower than dry combustion method heating rate VTe。
Dry combustion method identifying unit 630, for when current heating rate VTWith default dry combustion method heating rate VTeWhen close, then sentence
Water storage type firing equipment is determined in dry-fire condition.
In embodiments of the present invention, when current heating rate VTWith default dry combustion method heating rate VTeIt is such as current when close
Heating rate VTFor 75 DEG C/min, dry combustion method heating rate VTyFor 80 DEG C/min, then judge that water storage type firing equipment is in non-dry combustion method
State, system automatically cuts off the heater of water storage type firing equipment, in case equipment burns out.
Dry combustion method decision maker provided in an embodiment of the present invention, by using a temperature sensor the current intensification is judged
Speed VTWhether Jie Jin default dry combustion method heating rate VTe, when judging to be, then judge that water storage type firing equipment is in dry combustion method shape
State, water storage type firing equipment can in time take anti-dry to process, and improve the security performance of water storage type firing equipment；Meanwhile,
Only with the design of a temperature sensor, the production cost of effectively save water storage type firing equipment.Referring to Fig. 7, in the present invention
In embodiment, current heating rate acquiring unit 610 includes：
Current initial temperature value obtains subelement 611, for after water storage type water heater starts heating, obtaining current starting
Temperature value T1, and start timing；
Current end temp value obtains subelement 612, and for the time when timing default current heating-up time model is reached
Enclose t0When, obtain current end temp value T2；And
Current heating rate computation subunit 613, for according to current initial temperature value T1, current end temp value T2And
Default current heating-up time scope t0, calculate and obtain current heating rate VT。
As a practice of the present invention, during water heater full water state, start heater, full water initial temperature value Ty1
For 10 DEG C, when the time default full water heating-up time scope t of full water is reachedyFor 5min when, system obtain full water end temp value
Ty2For 75 DEG C, then full water heating rate V can be obtained by system-computedTy=(75-10)/5=13 DEG C/min.It is appreciated that at this
In invention other embodiment, full water initial temperature value Ty1It can also be 15 DEG C, 18 DEG C, 20 DEG C, 25 DEG C etc., with specific reference to actual feelings
Condition selects to determine；Default full water heating-up time scope tyCan also be for 2min, 3min, 4min, 6min etc., specifically can basis
User's request is adjusted；Full water end temp value Ty2Can also be 50 DEG C, 60 DEG C, 70 DEG C etc., specifically not limit.
Referring to Fig. 8, in embodiments of the present invention, the close judging unit 620 of heating rate includes：
First absolute value computation subunit 621, for according to current heating rate VTWith default dry combustion method heating rate VTe
Full water heating rate VTy, calculate and obtain current heating rate VTWith default dry combustion method heating rate VTeFull water heating rate VTyDifference
The absolute value △ V of valueTy；
Second absolute value computation subunit 622, for according to current heating rate VTWith default dry combustion method heating rate VTe
Dry combustion method heating rate VTe, calculate and obtain current heating rate VTWith default dry combustion method heating rate VTeDry combustion method heating rate VTeDifference
The absolute value △ V of valueTe；
Absolute value comparing subunit 623, for relatively more current heating rate VTWith default dry combustion method heating rate VTeFull water
Heating rate VTyThe absolute value △ V of differenceTyWith current heating rate VTWith default dry combustion method heating rate VTeDry combustion method heating rate
VTeThe absolute value △ V of differenceTeSize；
Dry combustion method judges subelement 624, for when current heating rate VTWith default dry combustion method heating rate VTeFull water heats up
Speed VTyThe absolute value △ V of differenceTyMore than current heating rate VTWith default dry combustion method heating rate VTeDry combustion method heating rate VTe
The absolute value △ V of differenceTeWhen, then judge that the water storage type firing equipment is in dry-fire condition.
Referring to Fig. 9, in embodiments of the present invention, dry combustion method judges that subelement 624 includes：
Dry combustion method error judgment module 6241, for when current heating rate VTWith default dry combustion method heating rate VTeFull water liter
Warm speed VTyThe absolute value △ V of differenceTyMore than current heating rate VTWith default dry combustion method heating rate VTeDry combustion method heating rate
VTeThe absolute value △ V of differenceTeWhen, judge current heating rate VTWith default dry combustion method heating rate VTeDry combustion method heating rate VTe
The absolute value △ V of differenceTeWhether default dry combustion method error amount is less than；
Dry combustion method determination module 6242, for when current heating rate VTWith default dry combustion method heating rate VTeDry combustion method heats up fast
Rate VTeThe absolute value △ V of differenceTeDuring less than default dry combustion method error amount, then judge that water storage type firing equipment is in dry-fire condition.
Used as a preferred embodiment of the present invention, default dry combustion method error amount is 5 DEG C/min, now can precisely be judged
Equipment is, enough in dry-fire condition, to prevent the generation judged by accident, it is ensured that equipment normal work.In other embodiments of the present invention, in advance
If dry combustion method error amount can also be 2 DEG C/min, 3 DEG C/min, 6 DEG C/min, 7 DEG C/min etc., specifically can be according to actual conditions
Select.
In a practice of the present invention, such as current heating rate VTFor 74 DEG C/min, default dry combustion method heats up fast
Rate VTeFull water heating rate VTyFor 15 DEG C/min, default dry combustion method heating rate VTeDry combustion method heating rate VTeFor 75 DEG C/min, in advance
If dry combustion method error amount be 5 DEG C/min, then current heating rate VTWith default dry combustion method heating rate VTeFull water heating rate VTy
The absolute value △ V of differenceTyFor (74-15)=59, current heating rate VTWith default dry combustion method heating rate VTeDry combustion method heats up fast
Rate VTeThe absolute value △ V of differenceTeFor (75-74)=1 DEG C/min, △ VTy=59 are more than △ VTe=1 DEG C/min, and △ VTeFor
=1 DEG C/min<Default dry combustion method error amount is 5 DEG C/min, then may determine that water storage type firing equipment in dry-fire condition, heating
Equipment heater can cut off the electricity supply at once, prevent equipment dry combustion method, improve equipment safety performance.
Figure 10 shows a kind of structure of water storage type firing equipment provided in an embodiment of the present invention, for convenience of description, only
Part related to the present invention is shown.
Water storage type firing equipment 700 provided in an embodiment of the present invention includes：
Storage tank 710, for storing the water of water storage type firing equipment 700；
One temperature sensor 710, for detecting storage tank in water temperature；And
Dry combustion method decision maker 600, for receiving the temperature data of temperature sensor detection, and enters according to the temperature data
Row dry combustion method judges.
In embodiments of the present invention, dry combustion method decision maker 600 includes：
Current heating rate acquiring unit 610, for after the water storage type firing equipment starts heating, obtaining the storage
Water type firing equipment is in default current heating-up time scope t0Interior current heating rate VT。
In one embodiment of the invention, default current heating-up time scope t0Can be 1min, 1.5min,
2min, 2.5min, specifically can be set according to actual conditions.
The close judging unit 620 of heating rate, for judging current heating rate VTHeat up Jie Jin default full water
Speed VTyOr Jie Jin default dry combustion method heating rate VTe。
As one embodiment of the invention, default full water water heating rate VTyWith default dry combustion method heating rate VTeCan
Being that system is built-in；As another embodiment of the present invention, default full water heating rate VTyHeat up with default dry combustion method fast
Rate VTeCan be that User Defined is arranged.
As a practice of the present invention, default full water heating rate VTyCan be 10 DEG C/min, 15 DEG C/min,
20 DEG C/min etc.；Dry combustion method heating rate VTeCan be 80 DEG C/min, 85 DEG C/min, 90 DEG C/min etc..It is appreciated that practice
In, under normal circumstances, default full water heating rate VTyIt is slower than default dry combustion method heating rate VTe。
Dry combustion method identifying unit 630, for when current heating rate VTWith default dry combustion method heating rate VTeIt is close to
When, then judge that water storage type firing equipment is in dry-fire condition.
In embodiments of the present invention, when current heating rate VTWith default dry combustion method heating rate VTeIt is such as current when close
Heating rate VTFor 75 DEG C/min, default dry combustion method heating rate VTyFor 80 DEG C/min, then judge that water storage type firing equipment is in
Non- dry-fire condition, equipment can in time cut off the heater of water storage type firing equipment, in case equipment burns out.
In embodiments of the present invention, current heating rate acquiring unit 610 includes：
Current initial temperature value obtains subelement 611, for after water storage type water heater starts heating, obtaining current starting
Temperature value T1, and start timing；
Current end temp value obtains subelement 612, and for the time when timing default current heating-up time model is reached
Enclose t0When, obtain current end temp value T2；And
Current heating rate computation subunit 613, for according to current initial temperature value T1, current end temp value T2And
Default current heating-up time scope t0, calculate and obtain current heating rate VT。
As a practice of the present invention, during water heater full water state, start heater, full water initial temperature value Ty1
For 10 DEG C, when the time default full water heating-up time scope t of full water is reachedyFor 5min when, system obtain full water end temp value
Ty2For 75 DEG C, then full water heating rate V can be obtained by system-computedTy=(75-10)/5=13 DEG C/min.It is appreciated that at this
In invention other embodiment, full water initial temperature value Ty1It can also be 15 DEG C, 18 DEG C, 20 DEG C, 25 DEG C etc., with specific reference to actual feelings
Condition selects to determine；Default full water heating-up time scope tyCan also be for 2min, 3min, 4min, 6min etc., specifically can basis
User's request is adjusted；Full water end temp value Ty2Can also be 50 DEG C, 60 DEG C, 70 DEG C etc., specifically not limit.
In embodiments of the present invention, the close judging unit 620 of heating rate includes：
First absolute value computation subunit 621, for according to current heating rate VTWith default full water heating rate VTy,
Calculate and obtain current heating rate VTWith default full water heating rate VTyThe absolute value △ V of differenceTy；
Second absolute value computation subunit 622, for according to current heating rate VTWith default dry combustion method heating rate VTe,
Calculate and obtain current heating rate VTWith default dry combustion method heating rate VTeThe absolute value △ V of differenceTe；
Absolute value comparing subunit 623, for relatively more current heating rate VTWith default full water heating rate VTyDifference
Absolute value △ VTyWith current heating rate VTWith default dry combustion method heating rate VTeThe absolute value △ V of differenceTeSize；
Dry combustion method judges subelement 624, for when current heating rate VTWith default full water heating rate VTyDifference it is exhausted
To value △ VTyMore than current heating rate VTWith default dry combustion method heating rate VTeThe absolute value △ V of differenceTeWhen, then judge storage
Water type firing equipment is in dry-fire condition.
In embodiments of the present invention, dry combustion method judges that subelement 624 includes：
Dry combustion method error judgment module 6241, for when current heating rate VTWith default full water heating rate VTyDifference
Absolute value △ VTyMore than current heating rate VTWith default dry combustion method heating rate VTeThe absolute value △ V of differenceTeWhen, judge to work as
Front heating rate VTWith default dry combustion method heating rate VTeThe absolute value △ V of differenceTeWhether default dry combustion method error amount is less than；
Dry combustion method determination module 6242, for when current heating rate VTWith default dry combustion method heating rate VTeDifference it is absolute
Value △ VTeDuring less than default dry combustion method error amount, then judge that water storage type firing equipment is in dry-fire condition.
Used as a preferred embodiment of the present invention, default dry combustion method error amount is 5 DEG C/min, now can precisely be judged
Equipment is, enough in dry-fire condition, to prevent the generation judged by accident, it is ensured that equipment normal work.In other embodiments of the present invention, in advance
If dry combustion method error amount can also be 2 DEG C/min, 3 DEG C/min, 6 DEG C/min, 7 DEG C/min etc., specifically can be according to actual conditions
Select.
In a practice of the present invention, such as current heating rate VTFor 74 DEG C/min, default full water heats up fast
Rate VTyFor 15 DEG C/min, default dry combustion method heating rate VTeFor 75 DEG C/min, default dry combustion method error amount is 5 DEG C/min, then when
Front heating rate VTWith default full water heating rate VTyThe absolute value △ V of differenceTyFor (74-15)=59, current heating rate
VTWith default dry combustion method heating rate VTeThe absolute value △ V of differenceTeFor (75-74)=1 DEG C/min, △ VTy=59 are more than △ VTe
=1 DEG C/min, and △ VTeFor=1 DEG C/min<Default dry combustion method error amount is 5 DEG C/min, then may determine that water storage type is heated
Equipment is in dry-fire condition, and firing equipment heater can cut off the electricity supply at once, prevent equipment dry combustion method, improve device security
Energy.
Dry combustion method decision maker provided in an embodiment of the present invention, by using a temperature sensor the current intensification is judged
Speed VTWhether Jie Jin default dry combustion method heating rate VTe, when judging to be, then judge that water storage type firing equipment is in dry combustion method shape
State, the heater of firing equipment can in time carry out anti-dry process and such as cut off the electricity supply, sends alarm music, flicker alarm indication
The process such as lamp, improves the security performance of water storage type firing equipment；Meanwhile, only with the design of a temperature sensor, effectively
Save the production cost of water storage type firing equipment.
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (16)
1. a kind of dry combustion method decision method, is applied to water storage type firing equipment, it is characterised in that methods described comprises the steps：
After the water storage type firing equipment starts heating, the water storage type firing equipment is obtained in the default current heating-up time
Scope t0Interior current heating rate VT；
Judge current heating rate VTJie Jin default full water heating rate VTyOr Jie Jin default dry combustion method heating rate
VTe；
When current heating rate VTWith default dry combustion method heating rate VTeWhen close, then the water storage type heating is judged
Equipment is in dry-fire condition.
2. dry combustion method decision method as claimed in claim 1, it is characterised in that the acquisition water storage type firing equipment is in institute
State default current heating-up time scope t0Interior described current heating rate VTThe step of include：
After the water storage type firing equipment starts heating, current initial temperature value T is obtained1, and start timing；
Default current heating-up time scope t is reached when the time of timing0When, obtain current end temp value T2；
According to the current initial temperature value T1, current end temp value T2And the default current heating-up time scope
t0, calculate and obtain current heating rate VT。
3. dry combustion method decision method as claimed in claim 1, it is characterised in that the judgement current heating rate VTIt is close to
Default full water heating rate VTyOr Jie Jin default dry combustion method heating rate VTeThe step of, including：
According to current heating rate VTWith default full water heating rate VTy, calculate and obtain the current heating rate
VTWith default full water heating rate VTyThe absolute value △ V of differenceTy；
According to current heating rate VTWith default dry combustion method heating rate VTe, calculate and obtain the current heating rate
VTWith default dry combustion method heating rate VTeThe absolute value △ V of differenceTe；
Comparison current heating rate VTWith default full water heating rate VTyThe absolute value △ V of differenceTyWork as with described
Front heating rate VTWith default dry combustion method heating rate VTeThe absolute value △ V of differenceTeSize；
When current heating rate VTWith default full water heating rate VTyThe absolute value △ V of differenceTyWork as more than described
Front heating rate VTWith default dry combustion method heating rate VTeThe absolute value △ V of differenceTeWhen, then judge the water storage type heating
Equipment is in dry-fire condition.
4. dry combustion method decision method as claimed in claim 1, it is characterised in that default full water heating rate VTyBy such as
Lower step is obtained：
In the water storage type firing equipment full water state, and start after heating, obtain full water initial temperature value Ty1, and start meter
When；
Default full water heating-up time scope t is reached when the time of timingyWhen, obtain full water end temp value Ty2；
According to the full water initial temperature value Ty1, full water end temp value Ty2And the default full water heating-up time scope
ty, calculate and obtain full water heating rate VTy。
5. dry combustion method decision method as claimed in claim 1, it is characterised in that default dry combustion method heating rate VTeBy such as
Lower step is obtained：
In the water storage type firing equipment anhydrous state, and start after heating, obtain dry combustion method initial temperature value Te1, and start meter
When；
Default dry combustion method heating-up time scope t is reached when the time of timingeWhen, obtain dry combustion method end temp value Te2；
According to the dry combustion method initial temperature value Te1, dry combustion method end temp value Te2And the default dry combustion method heating-up time scope
ty, calculate and obtain dry combustion method heating rate VTe。
6. dry combustion method decision method as claimed in claim 3, it is characterised in that when current heating rate VTIt is default with described
Full water heating rate VTyThe absolute value △ V of differenceTyMore than current heating rate VTWith the default dry combustion method liter
Warm speed VTeThe absolute value △ V of differenceTeWhen, then judge the step of water storage type firing equipment is in dry-fire condition, bag
Include：
When current heating rate VTWith default full water heating rate VTyThe absolute value △ V of differenceTyMore than institute
State current heating rate VTWith dry default burning heating rate VTeThe absolute value △ V of differenceTeWhen, judge described current
Heating rate VTWith default dry combustion method heating rate VTeThe absolute value △ V of differenceTeWhether miss less than default dry combustion method
Difference；
If the determination result is YES, then judge that the water storage type firing equipment is in dry-fire condition.
7. dry combustion method decision method as claimed in claim 1, it is characterised in that when current temperature speed V of the literTIt is default with described
Full water heating rate VTyWhen close, then judge that the water storage type firing equipment is in non-dry-fire condition.
8. dry combustion method decision method as claimed in claim 3, it is characterised in that methods described also includes：
When current heating rate VTWith default full water heating rate VTyThe absolute value △ V of differenceTyLess than institute
State current heating rate VTWith default dry combustion method heating rate VTeThe absolute value △ V of differenceTeWhen, then judge the storage
Water type firing equipment is in non-dry-fire condition；
It is described when current heating rate VTWith default full water heating rate VTyThe absolute value △ V of differenceTyIt is little
In current heating rate VTWith default dry combustion method heating rate VTeThe absolute value △ V of differenceTeWhen, then judge institute
State water storage type firing equipment in non-dry-fire condition the step of, including：
When current heating rate VTWith default full water heating rate VTyThe absolute value △ V of differenceTyLess than institute
State current heating rate VTWith default dry combustion method heating rate VTeThe absolute value △ V of differenceTeWhen, judge described current
Heating rate VTWith default full water heating rate VTyThe absolute value △ V of differenceTyWhether miss less than default full water
Difference；
If the determination result is YES, then judge that the water storage type firing equipment is in non-dry-fire condition.
9. a kind of dry combustion method decision maker, is applied to water storage type firing equipment, it is characterised in that described device includes：
Current heating rate acquiring unit, adds for after the water storage type firing equipment starts heating, obtaining the water storage type
Hot equipment is in default current heating-up time scope t0Interior current heating rate VT；
The close judging unit of heating rate, for judging current heating rate VTJie Jin default full water heating rate VTyAlso
It is Jie Jin default dry combustion method heating rate VTe；And
Dry combustion method identifying unit, for when current heating rate VTWith default dry combustion method heating rate VTeWhen close, then
Judge that the water storage type firing equipment is in dry-fire condition.
10. dry combustion method decision maker as claimed in claim 9, it is characterised in that the current heating rate acquiring unit includes：
Current initial temperature value obtains subelement, for after the water storage type water heater starts heating, obtaining current starting temperature
Angle value T1, and start timing；
Current end temp value obtains subelement, and for the time when timing default current heating-up time scope t is reached0
When, obtain current end temp value T2；And
Current heating rate computation subunit, for according to the current initial temperature value T1, current end temp value T2And
Default current heating-up time scope t0, calculate and obtain current heating rate VT。
11. dry combustion method decision makers as claimed in claim 9, it is characterised in that the close judging unit of the heating rate includes：
First absolute value computation subunit, for according to current heating rate VTWith the default full water heating rate
VTy, calculate and obtain current heating rate VTWith default full water heating rate VTyThe absolute value △ V of differenceTy；
Second absolute value computation subunit, for according to current heating rate VTWith the default dry combustion method heating rate
VTe, calculate and obtain current heating rate VTWith default dry combustion method heating rate VTeThe absolute value △ V of differenceTe；
Absolute value comparing subunit, for relatively more described current heating rate VTWith default full water heating rate VTyDifference
The absolute value △ VTyWith current heating rate VTWith default dry combustion method heating rate VTeDifference it is described definitely
Value △ VTeSize；
Dry combustion method judges subelement, for when current heating rate VTWith default full water heating rate VTyThe institute of difference
State absolute value △ VTyMore than current heating rate VTWith default dry combustion method heating rate VTeThe absolute value of difference
△VTeWhen, then judge that the water storage type firing equipment is in dry-fire condition.
12. dry combustion method decision makers as claimed in claim 11, it is characterised in that the dry combustion method judges that subelement includes：
Dry combustion method error judgment module, for when current heating rate VTWith default full water heating rate VTyDifference
The absolute value △ VTyMore than when front heating rate VTWith default dry combustion method heating rate VTeDifference it is described definitely
Value △ VTeWhen, judge current heating rate VTWith default dry combustion method heating rate VTeThe absolute value △ of difference
VTeWhether default dry combustion method error amount is less than；
Dry combustion method determination module, for when current heating rate VTWith default dry combustion method heating rate VTeDifference it is described
Absolute value △ VTeDuring less than the default dry combustion method error amount, then judge that the water storage type firing equipment is in dry-fire condition.
13. a kind of water storage type firing equipments, it is characterised in that the water storage type firing equipment includes：
Storage tank；
One temperature sensor for being used to detect the temperature of water in the storage tank；And
The temperature data of the temperature sensor detection is received, and the dry combustion method for carrying out dry combustion method judgement according to the temperature data judges
Device, the dry combustion method judgment means include：
Current heating rate acquiring unit, adds for after the water storage type firing equipment starts heating, obtaining the water storage type
Hot equipment is in default current heating-up time scope t0Interior current heating rate VT；
The close judging unit of heating rate, for judging current heating rate VTJie Jin default full water heating rate VTyAlso
It is Jie Jin default dry combustion method heating rate VTe；And
Dry combustion method identifying unit, for when current heating rate VTWith default dry combustion method heating rate VTeWhen close, then
Judge that the water storage type firing equipment is in dry-fire condition.
14. water storage type firing equipments as claimed in claim 13, it is characterised in that the current heating rate acquiring unit bag
Include：
Current initial temperature value obtains subelement, for after the water storage type firing equipment starts heating, obtaining current starting
Temperature value T1, and start timing；
Current end temp value obtains subelement, and for the time when timing default current heating-up time scope t is reached0When, obtain
Take current end temp value T2；And
Current heating rate computation subunit, for according to the current initial temperature value T1, current end temp value T2And
Default current heating-up time scope t0, calculate and obtain current heating rate VT。
15. water storage type firing equipments as claimed in claim 13, it is characterised in that the close judging unit bag of the heating rate
Include：
First absolute value computation subunit, for according to current heating rate VTWith the default full water heating rate
VTy, calculate and obtain current heating rate VTWith default full water heating rate VTyThe absolute value △ V of differenceTy；
Second absolute value computation subunit, for according to current heating rate VTWith the default dry combustion method heating rate
VTe, calculate and obtain current heating rate VTWith default dry combustion method heating rate VTeThe absolute value △ V of differenceTe；
Absolute value comparing subunit, for relatively more described current heating rate VTWith default full water heating rate VTyDifference
The absolute value △ VTyWith current heating rate VTWith default dry combustion method heating rate VTeDifference it is described definitely
Value △ VTeSize；
Dry combustion method judges subelement, for when current heating rate VTWith default full water heating rate VTyThe institute of difference
State absolute value △ VTyMore than current heating rate VTWith default dry combustion method heating rate VTeThe absolute value of difference
△VTeWhen, then judge that the water storage type firing equipment is in dry-fire condition.
16. water storage type water heaters as claimed in claim 15, it is characterised in that the dry combustion method judges that subelement includes：
Dry combustion method error judgment module, for when current heating rate VTWith default full water heating rate VTyDifference
The absolute value △ VTyMore than current heating rate VTWith default dry combustion method heating rate VTeDifference it is described definitely
Value △ VTeWhen, judge current heating rate VTWith default dry combustion method heating rate VTeThe absolute value △ of difference
VTeWhether default dry combustion method error amount is less than；
Dry combustion method determination module, for when current heating rate VTWith default dry combustion method heating rate VTeDifference it is described
Absolute value △ VTeDuring less than the default dry combustion method error amount, then judge that the water storage type firing equipment is in dry-fire condition.
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