CN104676898B - Prevent the method for heater dry combustion method in water temperature heating system, device and water temperature heating system - Google Patents
Prevent the method for heater dry combustion method in water temperature heating system, device and water temperature heating system Download PDFInfo
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Abstract
The present invention disclose it is a kind of prevent the method for heater dry combustion method in water temperature heating system, device and water temperature heating system, method includes：Obtain the inflow temperature of the intake tunnel of the water temperature heating system；Judge that inflow temperature, as current temperature difference rank, obtains the rule that lifted corresponding with the current temperature difference rank and be used as current lifting regular with the temperature difference rank where the difference of default target temperature；Detect whether the change of the leaving water temperature for the exhalant canal being sequentially communicated in the water temperature heating system with intake tunnel and heater meets current lifting rule, if being unsatisfactory for current lifting rule, stop the heating of the heater.The present invention by being heated to heater after leaving water temperature detect, judge whether the change of leaving water temperature meets rule, when being unsatisfactory for rule, judge heater failure, and stop the heating of heater, it is to avoid heater dry combustion method failure occur.
Description
Technical field
Heater dry combustion method in water temperature heating system is prevented the present invention relates to water temperature heating correlative technology field, particularly one kind
Method, device and water temperature heating system.
Background technology
Water temperature heating system, is heated using heater to the water of intake tunnel, and the water after heating is from exhalant canal stream
Go out.However, being communicated with probably due to a variety of causes disconnects due to heater and intake tunnel, such as intake tunnel and heater
The water pipe of connection comes off, then can cause heater dry combustion method.Heater dry combustion method can reduce the service life of heater, can be led when serious
Cause whole system failure or damage.
Prior art is general using flowmeter is set before heater in order to prevent heater dry combustion method, is sentenced by flowmeter
It is disconnected, the unlatching of heater is controlled when there is water to enter, controls heater to close when no water.However, using the side of flowmeter
Formula can not entirely prevent heater dry combustion method.When the connection disconnection or intake tunnel air inlet of flowmeter and heater are not entered
Water, can all cause flow to cause heater dry combustion method by heater in respect of water inlet signal, but without water, cause to damage.
The content of the invention
Based on this, it is necessary to which can not effectively preventing the technical problem of heater dry combustion method for prior art, there is provided one kind
Prevent the method for heater dry combustion method in water temperature heating system, device and water temperature heating system.
A kind of method for preventing heater dry combustion method in water temperature heating system, including：
Obtain the inflow temperature of the intake tunnel of the water temperature heating system；
Judge that inflow temperature, as current temperature difference rank, is obtained with the temperature difference rank where the difference of default target temperature
The rule that lifted corresponding with the current temperature difference rank is used as current lifting regular；
Detect the leaving water temperature for the exhalant canal being sequentially communicated in the water temperature heating system with intake tunnel and heater
Change whether meet current lifting rule, if being unsatisfactory for current lifting rule, stop the heating of the heater.
It is a kind of to prevent the device of heater dry combustion method in water temperature heating system, including：
Inflow temperature acquisition module, the inflow temperature of the intake tunnel for obtaining the water temperature heating system；
The regular determining module of lifting, for judging inflow temperature and the temperature difference rank where the difference of default target temperature
As current temperature difference rank, obtain the rule that lifted corresponding with the current temperature difference rank and be used as current lifting regular；
Leaving water temperature detection module, is sequentially communicated for detecting in the water temperature heating system with intake tunnel and heater
The change of leaving water temperature of exhalant canal whether meet current lifting rule, if being unsatisfactory for current lifting rule, stop
The heating of the heater.
A kind of water temperature heating system, including intake tunnel, heater and the exhalant canal being sequentially communicated, in addition to it is described
Heater is connected, and the control heater operation and the heater controller stopped, and the heater controller performs as follows
Step：
Obtain the inflow temperature of the intake tunnel；
Judge that inflow temperature, as current temperature difference rank, is obtained with the temperature difference rank where the difference of default target temperature
The rule that lifted corresponding with the current temperature difference rank is used as current lifting regular；
Detect whether the change of the leaving water temperature of the exhalant canal meets current lifting rule, if being unsatisfactory for working as premise
Rule is risen, then stops the heating of the heater.
The present invention by being heated to heater after leaving water temperature detect, judge whether the change of leaving water temperature meets
Rule, when being unsatisfactory for rule, judges that heater breaks down, and stop the heating of heater, it is to avoid heater dry combustion method occur
Failure.Meanwhile, according to inflow temperature difference different from target temperature, using different judgment rules, there is event to heater
Barrier makes faster reaction.
Brief description of the drawings
Fig. 1 prevents the workflow diagram of the method for heater dry combustion method in water temperature heating system for the present invention is a kind of；
Fig. 2 is the construction module figure of the example of a water temperature heating system；
Temperature, flow when Fig. 3 is normal heating, power time curve table；
Temperature, flow when Fig. 4 is dry combustion method, power time curve table；
Fig. 5 is a kind of workflow for an example for preventing the method for heater dry combustion method in water temperature heating system of the present invention
Figure；
Fig. 6 prevents the construction module figure of the device of heater dry combustion method in water temperature heating system for the present invention is a kind of；
Fig. 7 is a kind of structural representation of water temperature heating system of the invention.
Embodiment
The present invention will be further described in detail with specific embodiment below in conjunction with the accompanying drawings.
The workflow diagram of the method for heater dry combustion method in water temperature heating system is prevented for the present invention is a kind of as shown in Figure 1,
Including：
Step S101, obtains the inflow temperature of the intake tunnel of the water temperature heating system；
Step S102, judges inflow temperature with the temperature difference rank where the difference of default target temperature as the current temperature difference
Rank, obtains the rule that lifted corresponding with the current temperature difference rank and is used as current lifting regular；
The exhalant canal being sequentially communicated in step S103, the detection water temperature heating system with intake tunnel and heater
Whether the change of leaving water temperature meets current lifting rule, if being unsatisfactory for current lifting rule, stops the heater
Heating.
As the example of a water temperature heating system, as shown in Fig. 2 be the water temperature heating system in intelligent water toilet pan, its
Include；Water inlet pipe 201, water intaking valve and net-filter assembly 202, flexible pipe 2131 constitute intake tunnel successively, pass through inflow temperature
Sensor 203, then can obtain the inflow temperature of intake tunnel.Inflow temperature sensor 203 passes sequentially through flexible pipe 2132, flow
Meter 204 and flexible pipe 2133 are connected with heater 205, and water enters flexible pipe 2134, flexible pipe 2134, temperature after the heating of heater 205
Degree control sensor 206, flexible pipe 2135, vacuum brake 207, flexible pipe 2136, buffer small water tank 208, flexible pipe 2137, go out water temperature
Sensor 209, flexible pipe 2138, distributor 210, the composition exhalant canal of flexible pipe 2130 are spent, and is connected with Flushing nozzle 211, for punching
Shower nozzle 211 is washed to supply water.Air pump 212 is connected by flexible pipe 2139 with distributor 210 simultaneously.
In the case of existing, when flexible pipe 2133 come off or pipeline in have gas anhydrous when, flowmeter 204 has signal, but
There is no water by heating tube, constantly heating, cause heating tube to be damaged.
Substantial amounts of test has been done to heater dry combustion method and normal heating, temperature, the stream of normal heating as shown in Figure 3 is obtained
Amount, power time curve table, and temperature during dry combustion method as shown in Figure 4, flow, power time curve table.
From figure 3, it can be seen that in normal heating, leaving water temperature is reached after preset temperature and stabilization：
A, leaving water temperature（AD values by analog-to-digital conversion）Fluctuation very little；
B, leaving water temperature reach after stabilization that heating total indicator reading also has fluctuation；
C, when inflow temperature and target temperature are determined, heating total indicator reading can be estimated.
In the present example, using the heating power of heating pointer HEATER FOR MEASURING.
From fig. 4, it can be seen that in dry combustion method,
A, leaving water temperature AD values fluctuation very little；
B, because heating is unable to reach expection, the trend for heating the reading of pointer is gradually to increase.
The variation tendency of leaving water temperature when therefore, for dry combustion method, it can be determined that whether heater dry combustion method failure occurs.
In the embodiment of the present invention, in step s 102, temperature difference rank can have multiple, for example, have two, one and target
The difference of temperature is larger, one smaller with the difference of target temperature.For different temperature difference ranks, advised using different liftings
Then.However, can not be fitted like a glove with actual measurement only with two temperature difference ranks, the experience obtained from multiple experiment measurement
From the point of view of, water temperature lifts at least three kinds situations：
Fast lifting situation, in this case inflow temperature fallen far short with target temperature, heater heating with full power（Consider
To the deviation of possible input voltage）Also reach target temperature without decree leaving water temperature, now require temperature have it is certain climb,
Otherwise it is judged as failure；
Steady lifting situation, it is not very big that in this case inflow temperature is differed with target temperature, is added in heater total power
Under heat, leaving water temperature can be made to reach target temperature, now require that heating-up temperature will reach or close to target temperature, otherwise sentence
Break as failure；
Inflow temperature is with target temperature very close to heater can make leaving water temperature reach target without heating with full power
Temperature, the data that pointer can be now heated by obtaining judge the heating power of heater, because very close to target temperature
Degree, it is impossible to high-power heating, if heating pointer is very big, is judged as failure.
Therefore, corresponding temperature difference rank at least three：Inflow temperature and the far fast lifting temperature of target temperature difference
The general steady lifting temperature difference rank of poor rank, inflow temperature and target temperature difference, and inflow temperature and target temperature it is poor
The close slow lifting temperature difference rank of value
In one of the embodiments, the temperature difference rank and corresponding lifting rule include：
Inflow temperature and target temperature difference are more than the fast lifting temperature difference rank of default first threshold, and with it is quick
Lift the corresponding fast lifting rule of temperature difference rank；
Inflow temperature is more than default Second Threshold and less than or equal to default first threshold with target temperature difference
Steady lifting temperature difference rank, and steady lifting rule corresponding with steady lifting temperature difference rank；
Inflow temperature is less than or equal to the slow lifting temperature difference rank of default Second Threshold with target temperature difference, and
Slow lifting rule corresponding with slow lifting temperature difference rank；
And the first threshold is more than the temperature that lower of the heater heating with full power can be lifted, the Second Threshold is small
The temperature that can be lifted in lower of the heater heating with full power.
In one of the embodiments：
The fast lifting rule is：The leaving water temperature of the exhalant canal is repeatedly adopted within the default sampling time
The maximum of multiple sample temperatures obtained by sample is sample temperature maximum, the sample temperature maximum and the target temperature
The difference of degree is less than fast lifting sample temperature threshold value；
It is described it is steady lifting rule be：The leaving water temperature of the exhalant canal is repeatedly adopted within the default sampling time
The maximum of multiple sample temperatures obtained by sample is sample temperature maximum, the sample temperature maximum and the target temperature
The difference of degree is less than steady lifting sample temperature threshold value；
It is described it is slow lifting rule be：The heating power of the heater is less than or equal to power threshold.
In one of the embodiments：
To multiple samplings obtained by the leaving water temperature progress multiple repairing weld of the exhalant canal within the default sampling time
The maximum of temperature is sample temperature maximum, and the minimum value of multiple sample temperatures is sample temperature minimum value, when the sampling
The difference of temperature maximum and sample temperature minimum value is less than stable state threshold value, then：
Judge that inflow temperature, as current temperature difference rank, is obtained with the temperature difference rank where the difference of default target temperature
The rule that lifted corresponding with the current temperature difference rank is used as current lifting regular；Detect in the water temperature heating system with water inlet
Whether the change of the leaving water temperature for the exhalant canal that passage and heater are sequentially communicated meets current lifting rule, if be unsatisfactory for
Current lifting rule, then stop the heating of the heater.
When the difference of the sample temperature maximum and sample temperature minimum value within the default sampling time is less than stable state threshold value,
It then may determine that leaving water temperature comes into stable state, the leaving water temperature for entering stable state measured, is avoided that leaving water temperature goes out
Existing caused error by a relatively large margin.
In one of the embodiments：
The fast lifting rule is：The leaving water temperature of the exhalant canal is repeatedly adopted within the default sampling time
The maximum of multiple sample temperatures obtained by sample is sample temperature maximum, and in the whole heating that heater is heated
Between the difference of leaving water temperature maximum in section and leaving water temperature minimum value be more than fast lifting leaving water temperature threshold value, and the sampling
The difference of temperature maximum and the target temperature is less than fast lifting sample temperature threshold value；
It is described it is steady lifting rule be：The leaving water temperature of the exhalant canal is repeatedly adopted within the default sampling time
The maximum of multiple sample temperatures obtained by sample is sample temperature maximum, and in the whole heating that heater is heated
Between the difference of leaving water temperature maximum in section and leaving water temperature minimum value be more than steady lifting leaving water temperature threshold value, and the sampling
The difference of temperature maximum and the target temperature is less than steady lifting sample temperature threshold value.
Wherein, when using fast lifting rule or steady lifting rule, inflow temperature has a long way to go with target temperature,
Therefore being heated to target temperature has a process, i.e., inherently enter stable state from unsteady state, if being directly entered steady
Determine state, it may be possible to which water route comes off, without heater, can now cause heater to burn.Heater is heated
The whole heat time section in leaving water temperature maximum and leaving water temperature minimum value difference be more than fast lifting leaving water temperature threshold
Value or steady lifting leaving water temperature threshold value, what is referred to is in unsteady state, and the sample temperature maximum is with sampling
The difference of temperature minimum value is less than stable state threshold value, then is to enter stable state.Therefore, when using fast lifting rule or steady
During lifting rule, heated condition is transferred to stable state from unsteady state, shows that heater heating is normal, is otherwise judged as heating
Device failure.
It is illustrated in figure 5 a kind of work for an example for preventing the method for heater dry combustion method in water temperature heating system of the present invention
Make flow chart, including：
Step S510, heater is heated；
Step S520, gathers the AD values of leaving water temperature, while performing step S521 and step S530；
Step S530, according to heat algorithm, determines the heating levels of heater next time, according to heating levels lifting or
The heating power of heater is reduced, step S510 is performed；
Step S521, on the premise of needing to heat（Inflow temperature is less than target temperature）, using X radix as the cycle（
Radix is 160ms during 50HZ）, the AD values of X leaving water temperature of cycle index（Example：First time value, second between 0-159ms
The secondary value between 160ms-319ms, for the third time value ... ... between 320ms-479ms）, take in the cycle maximum max and
Minimum value min, and entirely the maximum MAX and minimum value MIN of heat time section, as data are judged, perform step S522；
Step S522, when max and min difference is less than Y, it is believed that it has reached stable state, starts to judge：
If inflow temperature is more than 30 degree with target temperature difference, step S523 is performed, if inflow temperature and target temperature
The difference of degree is less than or equal to 30 degree and more than 2 degree, execution step S524, and the difference of inflow temperature and target temperature is less than or equal to 2 degree, holds
Row step S525；
Step S523, if MAX and MIN difference is more than A, and the difference of max and target temperature is less than B, then is judged as
Fast lifting rule is met, if fast lifting rule is unsatisfactory for, and number of times F is arrived in accumulation, then stops heater heating；
Step S524, if MAX and MIN difference is more than C, and the difference of max and target temperature is less than D, then is judged as
Steady lifting rule is met, if steady lifting rule is unsatisfactory for, and number of times F is arrived in accumulation, then stops heater heating；
Step S525, the maximum for heating the reading of pointer is not more than E, then is judged as meeting slow lifting rule, if not
Slow lifting rule is met, then stops heater heating.
In this example, heating power is controlled using pid algorithm, wherein, PID refers to proportion of utilization
（proportion）, integration（integral）, differential（derivative）The algorithm of closed-loop control is carried out, is believed using 16 zero passages
Number it is one group, each zero cross signal correspondence one-level heating levels lift or reduced the heating of heater according to heating levels
Power, corresponding heating total indicator reading is from 0~16, for indicating heating levels.In step S530, using pid algorithm
According to Current Temperatures, temperature before, by calculating, 16 zero cross signals during to heating next time are configured, so as to set
Heating levels next time.
Tentative parameter：X=15（2.4s）、Y=5、A=10、B=50、F=5（0.8s）、C=6、D=10、E=8.
Above parameter be all it is related, it is necessary to consider reliability and alarm sensitivity, wherein：
X：It is the bigger the better in theory, it is more big more accurate, but negative interaction is evening paper failure, causes equipment dry combustion method time mistake
It is long；
Y：2-3 or so is surveyed, 5 are relaxed to, more big easier erroneous judgement；
A：Typically can be more than 30, but more big easier erroneous judgement, in order to prevent unpredictable situation, here using 10；
B：Relevant with inflow temperature and heating power, heating power is smaller, and inflow temperature is smaller, and B needs big, current 50
It is the empirical value drawn in testing；
C：It is greater than Y；
D：Determined by the algorithm effect of heater, typically between 15-0
E：The reading that pointer is heated during heater heating power full power is 16, and the 50% of full power is taken herein, is 8, one
As can between 0-3 fluctuate, be less susceptible to more greatly erroneous judgement, but it is more big then judge that the time is elongated, equipment dry combustion method time mistake can be caused
It is long.
Be illustrated in figure 6 the present invention it is a kind of prevent the construction module figure of the device of heater dry combustion method in water temperature heating system,
Including：
Inflow temperature acquisition module 601, the inflow temperature of the intake tunnel for obtaining the water temperature heating system；
The regular determining module 602 of lifting, for judging inflow temperature and the temperature difference where the difference of default target temperature
Rank obtains the rule that lifted corresponding with the current temperature difference rank and is used as current lifting regular as current temperature difference rank；
Leaving water temperature detection module 603, for detecting in the water temperature heating system with intake tunnel and heater successively
Whether the change of the leaving water temperature of the exhalant canal of connection meets current lifting rule, if being unsatisfactory for current lifting rule,
Stop the heating of the heater.
In one of the embodiments, the temperature difference rank and corresponding lifting rule include：
Inflow temperature and target temperature difference are more than the fast lifting temperature difference rank of default first threshold, and with it is quick
Lift the corresponding fast lifting rule of temperature difference rank；
Inflow temperature is more than default Second Threshold and less than or equal to default first threshold with target temperature difference
Steady lifting temperature difference rank, and steady lifting rule corresponding with steady lifting temperature difference rank；
Inflow temperature is less than or equal to the slow lifting temperature difference rank of default Second Threshold with target temperature difference, and
Slow lifting rule corresponding with slow lifting temperature difference rank；
And the first threshold is more than the temperature that lower of the heater heating with full power can be lifted, the Second Threshold is small
The temperature that can be lifted in lower of the heater heating with full power.
In one of the embodiments：
The fast lifting rule is：The leaving water temperature of the exhalant canal is repeatedly adopted within the default sampling time
The maximum of multiple sample temperatures obtained by sample is sample temperature maximum, the sample temperature maximum and the target temperature
The difference of degree is less than fast lifting sample temperature threshold value；
It is described it is steady lifting rule be：The leaving water temperature of the exhalant canal is repeatedly adopted within the default sampling time
The maximum of multiple sample temperatures obtained by sample is sample temperature maximum, the sample temperature maximum and the target temperature
The difference of degree is less than steady lifting sample temperature threshold value；
It is described it is slow lifting rule be：The heating power of the heater is less than or equal to power threshold.
In one of the embodiments, in addition to：
Steady state detection module, for carrying out multiple repairing weld to the leaving water temperature of the exhalant canal within the default sampling time
The maximum of resulting multiple sample temperatures is sample temperature maximum, the minimum values of multiple sample temperatures for sample temperature most
Small value, when the difference of the sample temperature maximum and sample temperature minimum value is less than stable state threshold value, then calls heater to control mould
Block and leaving water temperature detection module.
In one of the embodiments：
The fast lifting rule is：The leaving water temperature of the exhalant canal is repeatedly adopted within the default sampling time
The maximum of multiple sample temperatures obtained by sample is sample temperature maximum, and in the whole heating that heater is heated
Between the difference of leaving water temperature maximum in section and leaving water temperature minimum value be more than fast lifting leaving water temperature threshold value, and the sampling
The difference of temperature maximum and the target temperature is less than fast lifting sample temperature threshold value；
It is described it is steady lifting rule be：The leaving water temperature of the exhalant canal is repeatedly adopted within the default sampling time
The maximum of multiple sample temperatures obtained by sample is sample temperature maximum, and in the whole heating that heater is heated
Between the difference of leaving water temperature maximum in section and leaving water temperature minimum value be more than steady lifting leaving water temperature threshold value, and the sampling
The difference of temperature maximum and the target temperature is less than steady lifting sample temperature threshold value.
It is illustrated in figure 7 a kind of structural representation of water temperature heating system of the invention, including the intake tunnel being sequentially communicated
71st, heater 72 and exhalant canal 73, in addition to be connected with the heater 72, and control the heater 72 to run and stop
Heater controller 74, the heater controller 74 performs following steps：
Obtain the inflow temperature of the intake tunnel 71；
Judge that inflow temperature, as current temperature difference rank, is obtained with the temperature difference rank where the difference of default target temperature
The rule that lifted corresponding with the current temperature difference rank is used as current lifting regular；
Detect whether the change of the leaving water temperature of the exhalant canal 73 meets current lifting rule, if be unsatisfactory for current
Lifting rule, then stop the heating of the heater 72.
In one of the embodiments, the temperature difference rank and corresponding lifting rule include：
Inflow temperature and target temperature difference are more than the fast lifting temperature difference rank of default first threshold, and with it is quick
Lift the corresponding fast lifting rule of temperature difference rank；
Inflow temperature is more than default Second Threshold and less than or equal to default first threshold with target temperature difference
Steady lifting temperature difference rank, and steady lifting rule corresponding with steady lifting temperature difference rank；
Inflow temperature is less than or equal to the slow lifting temperature difference rank of default Second Threshold with target temperature difference, and
Slow lifting rule corresponding with slow lifting temperature difference rank；
And the first threshold is more than the temperature that lower of the heater heating with full power can be lifted, the Second Threshold is small
The temperature that can be lifted in lower of the heater heating with full power.
In one of the embodiments：
The fast lifting rule is：The leaving water temperature of the exhalant canal is repeatedly adopted within the default sampling time
The maximum of multiple sample temperatures obtained by sample is sample temperature maximum, the sample temperature maximum and the target temperature
The difference of degree is less than fast lifting sample temperature threshold value；
It is described it is steady lifting rule be：The leaving water temperature of the exhalant canal is repeatedly adopted within the default sampling time
The maximum of multiple sample temperatures obtained by sample is sample temperature maximum, the sample temperature maximum and the target temperature
The difference of degree is less than steady lifting sample temperature threshold value；
It is described it is slow lifting rule be：The heating power of the heater is less than or equal to power threshold.
In one of the embodiments：
To multiple samplings obtained by the leaving water temperature progress multiple repairing weld of the exhalant canal within the default sampling time
The maximum of temperature is sample temperature maximum, and the minimum value of multiple sample temperatures is sample temperature minimum value, when the sampling
The difference of temperature maximum and sample temperature minimum value is less than stable state threshold value, then：
Judge that inflow temperature, as current temperature difference rank, is obtained with the temperature difference rank where the difference of default target temperature
The rule that lifted corresponding with the current temperature difference rank is used as current lifting regular；Detect the leaving water temperature of the exhalant canal
Whether change meets current lifting rule, if being unsatisfactory for current lifting rule, stops the heating of the heater.
In one of the embodiments：
The fast lifting rule is：The leaving water temperature of the exhalant canal is repeatedly adopted within the default sampling time
The maximum of multiple sample temperatures obtained by sample is sample temperature maximum, and in the whole heating that heater is heated
Between the difference of leaving water temperature maximum in section and leaving water temperature minimum value be more than fast lifting leaving water temperature threshold value, and the sampling
The difference of temperature maximum and the target temperature is less than fast lifting sample temperature threshold value；
It is described it is steady lifting rule be：The leaving water temperature of the exhalant canal is repeatedly adopted within the default sampling time
The maximum of multiple sample temperatures obtained by sample is sample temperature maximum, and in the whole heating that heater is heated
Between the difference of leaving water temperature maximum in section and leaving water temperature minimum value be more than steady lifting leaving water temperature threshold value, and the sampling
The difference of temperature maximum and the target temperature is less than steady lifting sample temperature threshold value.
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (9)
1. a kind of method for preventing heater dry combustion method in water temperature heating system, it is characterised in that including：
Obtain the inflow temperature of the intake tunnel of the water temperature heating system；
To multiple sample temperatures obtained by the leaving water temperature progress multiple repairing weld of the exhalant canal within the default sampling time
Maximum be sample temperature maximum, the minimum values of multiple sample temperatures is sample temperature minimum value, when the sample temperature
The difference of maximum and sample temperature minimum value is less than stable state threshold value, then：
Judge that inflow temperature, as current temperature difference rank, is obtained and institute with the temperature difference rank where the difference of default target temperature
The corresponding lifting rule of current temperature difference rank is stated as current lifting rule；
Detect the change of the leaving water temperature for the exhalant canal being sequentially communicated in the water temperature heating system with intake tunnel and heater
Whether change meets current lifting rule, if being unsatisfactory for current lifting rule, stops the heating of the heater；
The temperature difference rank and corresponding lifting rule include：Inflow temperature is more than default first threshold with target temperature difference
Fast lifting temperature difference rank, and fast lifting corresponding with the fast lifting temperature difference rank rule；
Inflow temperature is more than default Second Threshold and steady less than or equal to default first threshold with target temperature difference
Lift temperature difference rank, and steady lifting rule corresponding with steady lifting temperature difference rank；
Inflow temperature is less than or equal to the slow lifting temperature difference rank of default Second Threshold with target temperature difference, and with delaying
It is slow to lift the corresponding slow lifting rule of temperature difference rank；
And the first threshold is more than the temperature that lower of the heater heating with full power can be lifted, the Second Threshold is less than institute
State the temperature that lower of heater heating with full power can be lifted.
2. the method according to claim 1 for preventing heater dry combustion method in water temperature heating system, it is characterised in that：
The fast lifting rule is：Multiple repairing weld institute is carried out to the leaving water temperature of the exhalant canal within the default sampling time
The maximum of obtained multiple sample temperatures is sample temperature maximum, the sample temperature maximum and the target temperature
Difference is less than fast lifting sample temperature threshold value；
It is described it is steady lifting rule be：Multiple repairing weld institute is carried out to the leaving water temperature of the exhalant canal within the default sampling time
The maximum of obtained multiple sample temperatures is sample temperature maximum, the sample temperature maximum and the target temperature
Difference is less than steady lifting sample temperature threshold value；
It is described it is slow lifting rule be：The heating power of the heater is less than or equal to power threshold.
3. the method according to claim 1 for preventing heater dry combustion method in water temperature heating system, it is characterised in that：
The fast lifting rule is：Multiple repairing weld institute is carried out to the leaving water temperature of the exhalant canal within the default sampling time
The maximum of obtained multiple sample temperatures is sample temperature maximum, and the section of whole heat time heated in heater
Interior leaving water temperature maximum and the difference of leaving water temperature minimum value are more than fast lifting leaving water temperature threshold value, and the sample temperature
Maximum and the difference of the target temperature are less than fast lifting sample temperature threshold value；
It is described it is steady lifting rule be：Multiple repairing weld institute is carried out to the leaving water temperature of the exhalant canal within the default sampling time
The maximum of obtained multiple sample temperatures is sample temperature maximum, and the section of whole heat time heated in heater
Interior leaving water temperature maximum and the difference of leaving water temperature minimum value are more than steady lifting leaving water temperature threshold value, and the sample temperature
Maximum and the difference of the target temperature are less than steady lifting sample temperature threshold value.
4. a kind of prevent the device of heater dry combustion method in water temperature heating system, it is characterised in that including：
Inflow temperature acquisition module, the inflow temperature of the intake tunnel for obtaining the water temperature heating system；
Steady state detection module, for being carried out within the default sampling time to the leaving water temperature of the exhalant canal obtained by multiple repairing weld
The maximum of the multiple sample temperatures arrived is sample temperature maximum, and the minimum value of multiple sample temperatures is minimum for sample temperature
Value, when the difference of the sample temperature maximum and sample temperature minimum value is less than stable state threshold value, then calls lifting rule to determine mould
Block and leaving water temperature detection module；
The regular determining module of lifting, for judging inflow temperature and the temperature difference rank conduct where the difference of default target temperature
Current temperature difference rank, obtains the rule that lifted corresponding with the current temperature difference rank and is used as current lifting regular；
Leaving water temperature detection module, for detect in the water temperature heating system with going out that intake tunnel and heater are sequentially communicated
Whether the change of the leaving water temperature of aquaporin meets current lifting rule, if being unsatisfactory for current lifting rule, stops described
The heating of heater；
The temperature difference rank and corresponding lifting rule include：Inflow temperature is more than default first threshold with target temperature difference
Fast lifting temperature difference rank, and fast lifting corresponding with the fast lifting temperature difference rank rule；
Inflow temperature is more than default Second Threshold and steady less than or equal to default first threshold with target temperature difference
Lift temperature difference rank, and steady lifting rule corresponding with steady lifting temperature difference rank；
Inflow temperature is less than or equal to the slow lifting temperature difference rank of default Second Threshold with target temperature difference, and with delaying
It is slow to lift the corresponding slow lifting rule of temperature difference rank；
And the first threshold is more than the temperature that lower of the heater heating with full power can be lifted, the Second Threshold is less than institute
State the temperature that lower of heater heating with full power can be lifted.
5. according to claim 4 prevent the device of heater dry combustion method in water temperature heating system, it is characterised in that：
The fast lifting rule is：Multiple repairing weld institute is carried out to the leaving water temperature of the exhalant canal within the default sampling time
The maximum of obtained multiple sample temperatures is sample temperature maximum, the sample temperature maximum and the target temperature
Difference is less than fast lifting sample temperature threshold value；
It is described it is steady lifting rule be：Multiple repairing weld institute is carried out to the leaving water temperature of the exhalant canal within the default sampling time
The maximum of obtained multiple sample temperatures is sample temperature maximum, the sample temperature maximum and the target temperature
Difference is less than steady lifting sample temperature threshold value；
It is described it is slow lifting rule be：The heating power of the heater is less than or equal to power threshold.
6. according to claim 4 prevent the device of heater dry combustion method in water temperature heating system, it is characterised in that：
The fast lifting rule is：Multiple repairing weld institute is carried out to the leaving water temperature of the exhalant canal within the default sampling time
The maximum of obtained multiple sample temperatures is sample temperature maximum, and the section of whole heat time heated in heater
Interior leaving water temperature maximum and the difference of leaving water temperature minimum value are more than fast lifting leaving water temperature threshold value, and the sample temperature
Maximum and the difference of the target temperature are less than fast lifting sample temperature threshold value；
It is described it is steady lifting rule be：Multiple repairing weld institute is carried out to the leaving water temperature of the exhalant canal within the default sampling time
The maximum of obtained multiple sample temperatures is sample temperature maximum, and the section of whole heat time heated in heater
Interior leaving water temperature maximum and the difference of leaving water temperature minimum value are more than steady lifting leaving water temperature threshold value, and the sample temperature
Maximum and the difference of the target temperature are less than steady lifting sample temperature threshold value.
7. a kind of water temperature heating system, including intake tunnel, heater and the exhalant canal being sequentially communicated, it is characterised in that also
Including being connected with the heater, and the control heater operation and the heater controller stopped, the heater control
Device performs following steps：
Obtain the inflow temperature of the intake tunnel；
To multiple sample temperatures obtained by the leaving water temperature progress multiple repairing weld of the exhalant canal within the default sampling time
Maximum be sample temperature maximum, the minimum values of multiple sample temperatures is sample temperature minimum value, when the sample temperature
The difference of maximum and sample temperature minimum value is less than stable state threshold value, then：
Judge that inflow temperature, as current temperature difference rank, is obtained and institute with the temperature difference rank where the difference of default target temperature
The corresponding lifting rule of current temperature difference rank is stated as current lifting rule；
Detect whether the change of the leaving water temperature of the exhalant canal meets current lifting rule, if being unsatisfactory for current lifting rule
Then, then the heating of the heater is stopped；
The temperature difference rank and corresponding lifting rule include：
Inflow temperature is more than the fast lifting temperature difference rank of default first threshold, and and fast lifting with target temperature difference
The corresponding fast lifting rule of temperature difference rank；
Inflow temperature is more than default Second Threshold and steady less than or equal to default first threshold with target temperature difference
Lift temperature difference rank, and steady lifting rule corresponding with steady lifting temperature difference rank；
Inflow temperature is less than or equal to the slow lifting temperature difference rank of default Second Threshold with target temperature difference, and with delaying
It is slow to lift the corresponding slow lifting rule of temperature difference rank；
And the first threshold is more than the temperature that lower of the heater heating with full power can be lifted, the Second Threshold is less than institute
State the temperature that lower of heater heating with full power can be lifted.
8. water temperature heating system according to claim 7, it is characterised in that：
The fast lifting rule is：Multiple repairing weld institute is carried out to the leaving water temperature of the exhalant canal within the default sampling time
The maximum of obtained multiple sample temperatures is sample temperature maximum, the sample temperature maximum and the target temperature
Difference is less than fast lifting sample temperature threshold value；
It is described it is steady lifting rule be：Multiple repairing weld institute is carried out to the leaving water temperature of the exhalant canal within the default sampling time
The maximum of obtained multiple sample temperatures is sample temperature maximum, the sample temperature maximum and the target temperature
Difference is less than steady lifting sample temperature threshold value；
It is described it is slow lifting rule be：The heating power of the heater is less than or equal to power threshold.
9. water temperature heating system according to claim 7, it is characterised in that：
The fast lifting rule is：Multiple repairing weld institute is carried out to the leaving water temperature of the exhalant canal within the default sampling time
The maximum of obtained multiple sample temperatures is sample temperature maximum, and the section of whole heat time heated in heater
Interior leaving water temperature maximum and the difference of leaving water temperature minimum value are more than fast lifting leaving water temperature threshold value, and the sample temperature
Maximum and the difference of the target temperature are less than fast lifting sample temperature threshold value；
It is described it is steady lifting rule be：Multiple repairing weld institute is carried out to the leaving water temperature of the exhalant canal within the default sampling time
The maximum of obtained multiple sample temperatures is sample temperature maximum, and the section of whole heat time heated in heater
Interior leaving water temperature maximum and the difference of leaving water temperature minimum value are more than steady lifting leaving water temperature threshold value, and the sample temperature
Maximum and the difference of the target temperature are less than steady lifting sample temperature threshold value.
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| CN112015091A (en) * | 2019-05-29 | 2020-12-01 | 广东美的生活电器制造有限公司 | Control method, control device, control equipment and computer storage medium |
| CN110726250B (en) * | 2019-09-27 | 2021-07-20 | 厦门科牧智能技术有限公司 | Heating assembly abnormity judgment method and sanitary cleaning device |
| CN114251828A (en) * | 2021-08-24 | 2022-03-29 | 佛山市顺德区美的饮水机制造有限公司 | Instantaneous heating device, control method and control device thereof, water treatment device and medium |
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