CN112263145A - Dry burning prevention method, processor and device for instant heating type drinking equipment - Google Patents
Dry burning prevention method, processor and device for instant heating type drinking equipment Download PDFInfo
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 491
- 230000035622 drinking Effects 0.000 title claims abstract description 89
- 238000000034 method Methods 0.000 title claims abstract description 68
- 230000002265 prevention Effects 0.000 title description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 300
- 230000000630 rising effect Effects 0.000 claims abstract description 69
- 238000005086 pumping Methods 0.000 claims description 45
- 239000003651 drinking water Substances 0.000 description 32
- 235000020188 drinking water Nutrition 0.000 description 32
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- 238000010586 diagram Methods 0.000 description 9
- 238000004590 computer program Methods 0.000 description 8
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- 238000012544 monitoring process Methods 0.000 description 4
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- 239000007788 liquid Substances 0.000 description 3
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/4403—Constructional details
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/46—Dispensing spouts, pumps, drain valves or like liquid transporting devices
- A47J31/468—Pumping means
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/54—Water boiling vessels in beverage making machines
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/54—Water boiling vessels in beverage making machines
- A47J31/56—Water boiling vessels in beverage making machines having water-level controls; having temperature controls
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Abstract
The embodiment of the invention provides an anti-dry heating method, a processor and a device for instant heating type drinking equipment, and belongs to the field of electric appliances. The anti-dry heating method for the instant heating type drinking equipment comprises the following steps: acquiring the temperature of a heating device of the instant heating type drinking equipment under the condition that the instant heating type drinking equipment enters a preheating state; determining a temperature rise rate according to the temperature; determining that the heating device is in a dry-burning state according to the temperature rising rate; and feeding water into the heating device. The method of the invention can reduce hardware cost.
Description
Technical Field
The invention relates to the field of electric appliances, in particular to an anti-dry heating method, a processor and a device for instant heating type drinking equipment.
Background
Compared with the traditional water dispenser which heats warm water through a hot tank, the instant heating type water dispenser has the advantages that the instant heating type water dispenser can drink water without waiting, the influence of front boiling water is avoided, and the like, so that more and more users pay attention to the instant heating type water dispenser. However, since the tankless water dispenser has a limited power, for example, 2kw, heating the water temperature to a higher temperature requires a gradual temperature increase process, in which the water temperature of the water flowing out of the water outlet of the tankless water dispenser generally does not reach the set temperature. At present, in order to reduce the influence of the partial outflow water, the existing instant heating type drinking equipment generally adopts a preheating method to shorten the time of temperature increase, but the instant heating type drinking equipment has the risk of dry burning in the preheating process, which may cause the safety problems of steam spraying of the instant heating type drinking equipment or burning out of an instant heating pipe, and the existing dry burning prevention technology mainly adopts a liquid level detection technology and needs certain hardware cost. Therefore, the existing dry heating prevention method for the instant heating type drinking equipment has the problem of higher hardware cost.
Disclosure of Invention
The embodiment of the invention aims to provide an anti-dry heating method, a processor, a device, instant heating type drinking equipment and a storage medium for instant heating type drinking equipment, so as to solve the problem of high hardware cost of the existing anti-dry heating method for instant heating type drinking equipment.
In order to achieve the above object, a first aspect of the present invention provides an anti-dry heating method for a tankless water dispenser device, comprising:
acquiring the temperature of a heating device of the instant heating type drinking equipment under the condition that the instant heating type drinking equipment enters a preheating state;
determining a temperature rise rate according to the temperature;
determining that the heating device is in a dry-burning state according to the temperature rising rate; and
water is fed into the heating device.
In an embodiment of the present invention, determining that the heating device is in the dry-fire state according to the temperature increase rate includes: judging whether the temperature rising rate is in a preset rate range or not; and under the condition that the temperature rising rate is not in the preset rate range, determining that the heating device is in a dry-burning state.
In the embodiment of the invention, the lower limit value of the preset speed range is the temperature rising speed of the heating device under the condition that the heating device is full of water; the upper limit of the preset rate range is the rate of temperature rise of the heating device in the case where the heating device is in the semi-water state.
In an embodiment of the present invention, determining that the heating device is in the dry-fire state according to the temperature increase rate includes: judging whether the temperature rising rate is greater than a preset rate threshold value, wherein the preset rate threshold value is less than or equal to the temperature rising rate of the heating device under the condition that the heating device is in the water-free state; and under the condition that the temperature rising rate is judged to be larger than the preset rate threshold value, determining that the heating device is in a dry-burning state.
In an embodiment of the present invention, the inputting of water into the heating device includes: water is fed into the heating device at a preset pumping speed.
In an embodiment of the present invention, inputting water into the heating device at a preset pump speed includes: acquiring the cavity volume of the heating device; determining water pumping time according to the cavity volume and the preset pumping speed; and inputting water into the heating device according to the preset pump speed and the water pumping time.
In an embodiment of the present invention, the dry heating preventing method for an instant heating type drinking device further includes: under the condition that water is input into the heating device to fill the cavity of the heating device with water, the temperature of the outlet water of the instant heating type water drinking equipment is controlled, and the temperature of the outlet water is controlled at the target water taking temperature.
A second aspect of the invention provides a processor configured to perform any of the above-described dry-fire prevention methods for a tankless water fountain.
The third aspect of the invention provides an anti-dry heating device for instant heating type drinking equipment, which comprises:
the heating device is used for heating the input water;
a temperature sensor for detecting a temperature of the heating device;
a pump for inputting water into the heating device; and
a processor configured to:
acquiring the temperature of a heating device of the instant heating type drinking equipment under the condition that the instant heating type drinking equipment enters a preheating state;
determining a temperature rise rate according to the temperature;
determining that the heating device is in a dry-burning state according to the temperature rising rate; and
water is fed into the heating device.
In an embodiment of the invention, the processor is further configured to: judging whether the temperature rising rate is in a preset rate range or not; and under the condition that the temperature rising rate is not in the preset rate range, determining that the heating device is in a dry-burning state.
In the embodiment of the invention, the lower limit value of the preset speed range is the temperature rising speed of the heating device under the condition that the heating device is full of water; the upper limit of the preset rate range is the rate of temperature rise of the heating device in the case where the heating device is in the semi-water state.
In an embodiment of the invention, the processor is further configured to: judging whether the temperature rising rate is greater than a preset rate threshold value, wherein the preset rate threshold value is less than or equal to the temperature rising rate of the heating device under the condition that the heating device is in the water-free state; and under the condition that the temperature rising rate is judged to be larger than the preset rate threshold value, determining that the heating device is in a dry-burning state.
In an embodiment of the invention, the processor is further configured to: water is fed into the heating device at a preset pumping speed.
In an embodiment of the invention, the processor is further configured to: acquiring the cavity volume of the heating device; determining water pumping time according to the cavity volume and the preset pumping speed; and inputting water into the heating device according to the preset pump speed and the water pumping time.
In an embodiment of the invention, the processor is further configured to: under the condition that water is input into the heating device to fill the cavity of the heating device with water, the temperature of the outlet water of the instant heating type water drinking equipment is controlled, and the temperature of the outlet water is controlled at the target water taking temperature.
The invention provides instant heating type drinking equipment, which comprises any one of the above anti-dry heating devices for the instant heating type drinking equipment.
A fifth aspect of the present invention provides a machine-readable storage medium having stored thereon instructions for causing a machine to perform any one of the above-described anti-dry heating methods for a water drinking device.
According to the technical scheme, the anti-dry heating method for the instant heating type drinking equipment comprises the steps of obtaining the temperature of the heating device of the instant heating type drinking equipment in a preheating state, determining the temperature rising rate according to the temperature, and inputting water into the heating device after determining that the heating device is in a dry heating state according to the temperature rising rate. The method does not need to increase or change the hardware of the instant heating type drinking equipment, judges whether the heating device is in a dry heating state or not through the temperature rising rate, and starts corresponding dry heating prevention protection measures in time after the heating device is determined to be in the dry heating state, namely water is input into the heating device. Therefore, the anti-dry heating method for the instant heating type drinking equipment improves the safety of the instant heating type drinking equipment in the using process without increasing the hardware cost, and does not influence the water using experience of users for normally taking water.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
FIG. 1 is a schematic flow chart of an anti-dry heating method for an instant heating type drinking device according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating the steps of determining that the heating device is in the dry-fire state according to the temperature rising rate according to the embodiment of the invention;
FIG. 3 is a schematic flow chart illustrating the step of inputting water into the heating device according to the embodiment of the present invention;
FIG. 4 is a schematic flow chart illustrating the step of determining that the heating device is in the dry-fire state according to the temperature rising rate according to another embodiment of the present invention;
FIG. 5 is a schematic flow chart illustrating an anti-dry heating method for a tankless water dispenser device according to another embodiment of the present invention;
FIG. 6 is a schematic flow chart illustrating an anti-dry heating method for a tankless water dispenser device according to another embodiment of the present invention;
fig. 7 is a structural block diagram of an anti-dry heating device for an instant heating type drinking water device according to an embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.
At present, the existing tankless water dispenser generally includes a water tank and a heating device, such as a heat pipe, when the height position of the water tank is lower than that of the heat pipe, in a standby state, the water level in the heat pipe gradually falls back along with the time lapse until the water level is equal to the liquid level in the water tank. When the user gets water next time, namely, the heat pipe is not filled with water and the preheating mechanism is started, the situation that the heat pipe is dry-burned is caused.
In order to solve the above problems, an embodiment of the present invention provides an anti-dry heating method for an instant heating type drinking device. Fig. 1 is a schematic flow chart of an anti-dry heating method for an instant heating type drinking device in an embodiment of the present invention. As shown in fig. 1, in the embodiment of the present invention, an anti-dry heating method for a tankless water drinking device is provided, which is exemplified by a processor applied to the tankless water drinking device, and the method may include the following steps:
step S102, acquiring the temperature of a heating device of the instant heating type drinking equipment under the condition that the instant heating type drinking equipment enters a preheating state.
Specifically, when the instant heating type drinking water equipment enters a preheating state, a processor of the instant heating type drinking water equipment obtains the temperature of a heating device of the instant heating type drinking water equipment in real time or at intervals of a preset time interval, and further, the temperature of the heating device can be detected by a temperature sensor or other temperature detection devices.
And step S104, determining the temperature rising rate according to the temperature.
It is understood that the rate of temperature rise is the rate of change of temperature rise over a unit time interval (e.g., per second).
Specifically, the processor of the instant heating type drinking water equipment determines the temperature rise rate of the heating device of the instant heating type drinking water equipment according to the temperature information of the heating device of the instant heating type drinking water equipment, which is acquired in different timestamps or preset time intervals.
Further, in one embodiment, the rate of temperature rise of the heating device of the tankless water dispenser may be determined according to the following equation (1):
Where η (T) is the thermal efficiency of the heating device, T is the ambient temperature, P is the power of the heating device, U is the voltage of the heating device, R0Is a heating resistor of a heating device, CFeAs the specific heat capacity of the heating device, CWaterIs the specific heat capacity of water, mFeMass of the heating means, mWaterFor the quality of the water in the heating device, Δ TFeFor the rate of temperature rise of the heating device, Δ TWaterIs the rate of temperature rise of the water in the heating device. Wherein the heating device may be a heat pipe.
In this embodiment, the temperature rise rate of the heating device under the condition of full water can be determined by the above formula
Rate of temperature rise of heating device in absence of water
And rate of temperature rise of heating device in semi-water condition
A reasonable range interval of the temperature rising rate of the heating device is given through a mathematical model. In actual operation, the temperature of the heating device can be detected in real time through the temperature sensor of the instant heating drinking water equipment, so that the temperature rising rate of the heating device of the instant heating drinking water equipment in the preheating process is determined, and if the temperature rising rate is in the range of the temperature rising rate
And nearby, the fact that the instant heating type drinking water equipment is not long in static time, no backwater or less backwater exists, the heating device is filled with water or is close to full water, and at the moment, the instant heating type drinking water equipment is in a safe state and can be used for normally preheating the water.
And step S106, determining that the heating device is in a dry-fire state according to the temperature rising rate.
It can be understood that the dry-fire state is an operating state in which the power of the heating device is not zero and no liquid is heated in the heating device.
Specifically, the processor of the instant heating type drinking equipment determines that the heating device is in a dry heating state according to the temperature rising rate of the heating device of the instant heating type drinking equipment. For example, if the temperature rise rate is at
And if the temperature is close to the preset temperature, the heating device is in a state of no water or nearly no water, and the heating device is determined to be in a dry-heating state.
The temperature rise rate of the temperature sensor of the heating device during the preheating period is detected, the temperature rise rate of the heating device in the normal preheating state and the temperature rise rate of the dry-burning state have obvious difference, the advantage of monitoring the temperature rise rate instead of the absolute value of the temperature is that the response of the temperature rise rate is fast, and the abnormity can be found when the absolute value temperature of the heating device is still at a lower level, so that the dry-burning protection is carried out. If monitoring absolute temperature, such as 100 ℃ or 110 ℃, is adopted, although dry burning can also be determined, at this time, the temperature is high, and then dry burning protection action is carried out, the heat pipe can be burned out or damage can be accumulated due to large temperature rise inertia.
In one embodiment, as shown in fig. 2, determining that the heating device is in the dry-fire state according to the temperature increase rate includes steps S2062 and S2064:
in step S2062, it is determined whether the temperature increase rate is within the preset rate range.
It can be understood that the preset rate range is a preset interval of the temperature rise rate of the heating device of the instant heating type drinking equipment.
Specifically, the processor of the instant heating type drinking equipment judges whether the temperature rising rate of the heating device is in a preset rate range.
In one embodiment, the lower limit of the preset rate range is the rate of temperature rise of the heating device when the heating device is at full water; the upper limit of the preset rate range is the rate of temperature rise of the heating device in the case where the heating device is in the semi-water state. The full water condition is a condition that the heating device is full of water, and the half water condition is a condition that the heating device contains half water.
In step S2064, when it is determined that the temperature increase rate is not within the preset rate range, it is determined that the heating device is in a dry-fire state.
Specifically, when the processor of the instant heating type water dispenser determines that the temperature rise rate is not within the preset rate range, that is, the temperature rise rate of the heating device is not between the temperature rise rate of the heating device under the full water condition and the temperature rise rate of the heating device under the semi-water condition, it determines that the heating device is in the dry-fire state.
In this embodiment, the processor further determines an upper limit value and a lower limit value of a preset rate range of the heating device to determine an accurate evaluation index of dry-fire protection of the instant heating type drinking water device, the upper limit value and the lower limit value of the preset rate range of the heating device are determined in advance to be a temperature rise rate of the heating device under a semi-water condition and a temperature rise rate of the heating device under a full-water condition, when the temperature rise rates exceed the upper limit value and the lower limit value, the heating device is determined to be in a dry-fire state, and whether the heating device is in the dry-fire state is detected through an accurate temperature rise rate range, so as to ensure safety of the instant heating type drinking water device in a using process.
Further, under the condition that the temperature rising rate is judged to be in the preset rate range, the heating device is determined to be in a preheating state; acquiring the time of the heating device in a preheating state; judging whether the time of the heating device in the preheating state reaches the preset preheating time or not; and under the condition that the time that the heating device is in the preheating state is judged to reach the preset preheating time, the temperature of the outlet water of the instant heating type drinking equipment is controlled, so that the temperature of the outlet water is controlled at the target water taking temperature.
It will be appreciated that the preset preheating time is a preset preheating time of the tankless water dispenser, for example, 3 seconds. Specifically, when the temperature rise rate of the heating device of the instant heating type water dispenser is within the preset rate range, it is indicated that the instant heating type water dispenser is in a normal preheating state, the time when the instant heating type water dispenser is in the normal preheating state is acquired, the time is compared with the preset preheating time, and under the condition that the time and the preset preheating time are consistent, the preheating is judged to be finished, the processor controls the instant heating type water dispenser to normally discharge water, and performs temperature control on the water temperature, and a specific control mode, such as a PID control mode, is used for obtaining the water meeting the target water taking temperature required by a user.
Step S108, inputting water into the heating device.
It can be understood that when it is determined that the heating device of the instant heating type drinking water device is in a dry heating state, that is, the heating device is in a water-free or near water-free state, the processor starts a corresponding dry heating prevention mechanism, specifically, the processor immediately starts the water pump to input water into the heating device, so as to protect the instant heating type drinking water device.
According to the anti-dry heating method for the instant heating type drinking equipment, the temperature of the heating device of the instant heating type drinking equipment in the preheating state is obtained, the temperature rising rate is determined according to the temperature, and after the heating device is determined to be in the dry heating state according to the temperature rising rate, water is input into the heating device. The method does not need to increase or change the hardware of the instant heating type drinking equipment, judges whether the heating device is in a dry heating state or not through the temperature rising rate, and starts corresponding dry heating prevention protection measures in time after the heating device is determined to be in the dry heating state, namely water is input into the heating device. Therefore, the anti-dry heating method for the instant heating type drinking equipment improves the safety of the instant heating type drinking equipment in the using process without increasing the hardware cost, and does not influence the water using experience of users for normally taking water.
In one embodiment, the inputting of water into the heating device comprises: water is fed into the heating device at a preset pumping speed.
It can be understood that the preset pump speed is the pump speed corresponding to the highest bearing voltage of the water pump.
In this embodiment, under the condition that the heating device is in the anhydrous state or the state close to the anhydrous state, the processor of the instant heating type drinking water device controls the water pump to operate at the pump speed corresponding to the highest bearing voltage, so as to input water to the heating device at the fastest speed, and realize the efficient dry-heating prevention protection strategy of the instant heating type drinking water device.
Further, the inputting of water into the heating device may further include: the water pump is driven by the water pump voltage corresponding to the normal-temperature water mode, so that dry burning prevention protection with high efficiency is realized.
In one embodiment, as shown in fig. 3, the inputting of water into the heating device includes steps S3082 to S3086:
step S3082, a cavity volume of the heating device is obtained.
It can be understood that the cavity volume is determined by the processor of the tankless water dispenser that the cavity volume of the heating device is in a dry-heating state, and may be, for example, a cavity volume parameter of the heating device in a water-free state, or a preset cavity volume parameter.
And step S3084, determining the water pumping time according to the cavity volume and the preset pumping speed.
It can be understood that the preset pump speed is the pump speed corresponding to the highest bearing voltage of the water pump of the instant heating type drinking equipment.
Specifically, the processor determines the water pumping time of the water pump according to the cavity volume of the heating device and the preset pumping speed of the water pump, and the water pumping time can be determined according to the following formula (2):
wherein, VheaterVolume of cavity for heating device vpumpFor a preset pump speed, Δ t, of the water pumppumpThe water pumping time of the water pump.
And step S3086, inputting water into the heating device according to the preset pump speed and the preset water pumping time.
Specifically, the processor of the instant heating type drinking equipment starts the water pump to input water into the heating device at the preset pump speed until the water pumping time is met according to the preset pump speed of the water pump and the determined water pumping time.
In this embodiment, through confirming the pumping time, start the water pump according to preset pump speed and definite pumping time and input water to heating device, because heating device's cavity volume is limited, when the dry combustion method protects, the numerical value of cavity volume is great, and the pumping time is usually shorter, for example several seconds, later normally heats up out water, therefore whole water intaking process has both realized preheating function, can not influence user's experience with water because of the dry combustion method again.
In one embodiment, as shown in fig. 4, determining that the heating apparatus is in the dry-fire state according to the temperature increase rate includes steps S4062 and S4064:
step S4062, determining whether the temperature rising rate is greater than a preset rate threshold.
The preset rate threshold is less than or equal to the temperature rising rate of the heating device under the condition that the heating device is in the water-free state, and the specific preset rate threshold can be set by the processor or can be set by a user, for example, the temperature rising rate of the heating device under the water-free state is 90%.
Specifically, the processor of the tankless water dispenser determines whether the rate of temperature rise of the heating device is greater than a preset rate threshold, such as 90% of the rate of temperature rise of the heating device when the heating device is in the absence of water.
Step S4064, determining that the heating device is in a dry-fire state under the condition that the temperature rising rate is judged to be larger than the preset rate threshold.
Specifically, under the condition that the processor of the instant heating type water dispenser determines that the temperature rising rate of the heating device of the instant heating type water dispenser is greater than the preset rate threshold, if the heating device is in 95% of the temperature rising rate of the heating device under the anhydrous condition, it is determined that the heating device is in a dry-heating state at the moment, and at the moment, the heating device is in an anhydrous state or a state close to the anhydrous state.
In this embodiment, the temperature increase rate of the heating device is compared with a preset rate threshold, where the preset rate threshold is smaller than or equal to the temperature increase rate of the heating device in the absence of water, and when the temperature increase rate of the heating device is judged to be greater than the preset rate threshold, it is determined that the heating device of the instant heating type water dispenser is in a dry-heating state. The embodiment adopts the preset rate threshold value of the heating device as a main evaluation index, combines the temperature rise rate of the heating device under the waterless condition to use, and can judge whether the heating device is in a dry-heating state only by comparing the temperature rise rate of the heating device with the preset rate threshold value, so that the dry-heating state judgment speed is increased, the judgment efficiency is improved, and the dry-heating prevention can be more effectively and more quickly carried out.
In an embodiment, as shown in fig. 5, the dry heating prevention method for a tankless water dispenser device further includes step S510:
step S510, under the condition that water is input into the heating device to fill the cavity of the heating device with water, performing temperature control on the outlet water of the instant heating type drinking water device to control the outlet water temperature at the target water taking temperature.
Specifically, the processor of the instant heating type water dispenser may determine whether the time for starting the water pump to input water into the heating device is longer than the water pumping time determined according to the cavity volume of the heating device and the preset pump speed, and when the processor of the instant heating type water dispenser determines that the time for inputting water into the heating device is longer than the water pumping time, that is, when the cavity of the heating device is full of water, the processor starts an outlet water temperature control program, for example, starts PID control to perform temperature control on water in the heating device, and controls the outlet water temperature of the water outlet at a target water intake temperature or an expected target water intake temperature (that is, close to the target water intake temperature), so as to obtain water reaching the target water intake temperature.
In this embodiment, after the cavity of the heating device is filled with water by inputting water into the heating device, the temperature control program is started to control the temperature of the outlet water of the instant heating type water dispenser, so as to quickly obtain water meeting the target water intake temperature in a short time. The water pumping protection mode only acts for a short time and is linked with the normal water outlet mode, so that the influence of dry burning caused by backwater on a user can be reduced to the greatest extent, and the water consumption experience of the user is improved.
In one embodiment, the dry-heating prevention method for the tankless water dispenser device may further include: under the condition that the instant heating type drinking water equipment does not enter the preheating state, the temperature of the outlet water of the instant heating type drinking water equipment is controlled, so that the outlet water temperature is controlled at the target water taking temperature.
In this embodiment, if the instant heating type drinking water device does not need to be preheated, the temperature control program is directly started to control the water outlet temperature of the water outlet, so as to quickly obtain water meeting the target water taking temperature or expecting the target water taking temperature, and shorten the waiting time of the user.
In a specific embodiment, as shown in fig. 6, there is provided an anti-dry heating method for a tankless water dispenser, which is described by taking the method as an example of the tankless water dispenser, the method may include the following steps:
step S601, the instant heating type drinking equipment is initialized.
Step S602, the instant heating type water dispenser waits for a user to take water and sets a target water taking temperature in a standby state.
Wherein, the target water getting temperature can be determined according to the water getting instruction triggered or clicked by the user.
Step S603, the instant heating type drinking device determines whether to enter a preheating state.
Specifically, the processor of the instant heating type drinking water device determines whether the instant heating type drinking water device enters the preheating state, if so, the step S604 is performed, and if not, the step S612 is performed directly.
Step S604, the instant heating type drinking equipment obtains the temperature of a heating device of the instant heating type drinking equipment when the instant heating type drinking equipment enters a preheating state.
And step S605, the instant heating type drinking equipment determines the temperature rising rate according to the temperature.
Step S606, the instant heating type drinking equipment judges whether the temperature rising rate is in a preset rate range.
Specifically, the processor of the instant heating type drinking device determines whether the temperature rising rate of the heating device is within a preset rate range, if not, the step S6071 is performed, and if so, the step S6072 is performed.
Step S6072, the instant heating type drinking equipment determines that the heating device is in a preheating state under the condition that the temperature rising rate is judged to be in the preset rate range.
Step S6072 is followed by step S6074, in which the instant heating type drinking water apparatus obtains the time when the heating device is in the preheating state.
Step S6074 is followed by step S6076, in which the instant heating type drinking water apparatus determines whether the time of the heating device in the preheating state reaches the preset preheating time.
Specifically, the instant heating type drinking device enters step S612 when determining whether the time that the heating device is in the preheating state reaches the preset preheating time, and when the time reaches the preset preheating time.
Step S6071, determining that the heating device is in a dry-heating state by the instant heating type drinking equipment under the condition that the temperature rising rate is judged not to be in the preset rate range.
Step S6071 is followed by step S608, in which the tankless water dispenser device obtains the cavity volume of the heating device.
And step S609, the instant heating type drinking equipment determines the water pumping time according to the volume of the cavity and the preset pumping speed.
And step S610, the instant heating type drinking equipment inputs water into the heating device according to the preset pump speed and the preset pump time.
In this step, the power of the heating device of the instant heating type drinking equipment is reduced to zero.
Step S611, the instant heating type water dispenser determines whether the time for inputting water into the heating device is longer than the water pumping time.
Specifically, the processor of the instant heating type drinking device determines whether the time for inputting water into the heating device is longer than the water pumping time, if so, the step S612 is executed, otherwise, the step S610 is executed again.
And step S612, controlling the temperature of the outlet water of the instant heating type drinking equipment so as to control the outlet water temperature to be at the target water taking temperature.
Specifically, the outlet water temperature can be dynamically controlled by adopting PID.
In the dry heating prevention method for the instant heating type drinking equipment, aiming at the water return problem of the instant heating type drinking equipment, under the conditions of no hardware modification and zero cost, whether the heating device is in dry heating or not is judged by monitoring the actual temperature rising rate of the heating device during the preheating period, whether the instant heating type drinking equipment is in a dry heating state due to water shortage or low water amount or not is specifically identified by a dry heating judgment model related to the temperature rising rate, if the instant heating type drinking equipment is in the dry heating state due to water return, the preheating is stopped, a water pump is started to inject water into the heating device for protection, and the dry heating protection during the preheating period is realized. The dry-heating preventing mechanism reasonably utilizes the characteristic of the temperature rise rate of the heating device (namely the heat pipe) and the working characteristic of the water pump, when dry heating occurs, the dry-heating preventing mechanism quickly intervenes, the protection is realized by pumping cold water into the heating device (namely the heat pipe), a corresponding timer is designed, after the short protection time, the machine enters a normal water outlet mode, and the influence on the water consumption experience of a user is extremely small.
In one embodiment, as shown in fig. 7, there is provided an anti-dry heating apparatus for a tankless water dispenser device, comprising: a heating device 702, a temperature sensor 704, a pump 706, and a processor 708, wherein:
a heating device 702 for heating the inputted water;
a temperature sensor 704 for detecting the temperature of the heating device;
a pump 706 for inputting water into the heating device; and
a processor 708 configured to: acquiring the temperature of a heating device of the instant heating type drinking equipment under the condition that the instant heating type drinking equipment enters a preheating state; determining a temperature rise rate according to the temperature; determining that the heating device is in a dry-burning state according to the temperature rising rate; and feeding water into the heating device.
The anti-dry heating device for the instant heating type drinking equipment obtains the temperature of the heating device of the instant heating type drinking equipment in the preheating state through the temperature sensor, determines the temperature rising rate according to the temperature, determines that the heating device is in the dry heating state according to the temperature rising rate, and inputs water into the heating device through the pump. The method does not need to increase or change the hardware of the instant heating type drinking equipment, judges whether the heating device is in a dry heating state or not through the temperature rising rate, and starts corresponding dry heating prevention protection measures in time after the heating device is determined to be in the dry heating state, namely water is input into the heating device. Therefore, the anti-dry heating method for the instant heating type drinking equipment improves the safety of the instant heating type drinking equipment in the using process without increasing the hardware cost, and does not influence the water using experience of users for normally taking water.
In one embodiment, the processor 708 is further configured to: judging whether the temperature rising rate is in a preset rate range or not; and under the condition that the temperature rising rate is not in the preset rate range, determining that the heating device is in a dry-burning state.
In the device in the embodiment, the processor determines the range interval of the temperature rise rate of the heating device in advance through the mathematical model, and determines whether the heating device is in a dry-heating state or not by monitoring whether the actual temperature rise rate of the heating device is in the range interval or not during preheating, and particularly identifies whether the instant heating type water dispenser is in a dry-heating state due to water return or water quantity is small through the dry-heating determination model related to the temperature rise rate, so that the dry-heating is effectively and quickly prevented.
In one embodiment, the lower limit of the preset rate range is the rate of temperature rise of the heating device when the heating device is at full water; the upper limit of the preset rate range is the rate of temperature rise of the heating device in the case where the heating device is in the semi-water state.
In this embodiment, the processor further determines an upper limit value and a lower limit value of a preset rate range of the heating device to determine an accurate evaluation index of dry-fire protection of the instant heating type drinking water device, the upper limit value and the lower limit value of the preset rate range of the heating device are determined in advance to be a temperature rise rate of the heating device under a semi-water condition and a temperature rise rate of the heating device under a full-water condition, when the temperature rise rates exceed the upper limit value and the lower limit value, the heating device is determined to be in a dry-fire state, and whether the heating device is in the dry-fire state is detected through an accurate temperature rise rate range, so as to ensure safety of the instant heating type drinking water device in a using process.
In one embodiment, the processor 708 is further configured to: judging whether the temperature rising rate is greater than a preset rate threshold value, wherein the preset rate threshold value is less than or equal to the temperature rising rate of the heating device under the condition that the heating device is in the water-free state; and under the condition that the temperature rising rate is judged to be larger than the preset rate threshold value, determining that the heating device is in a dry-burning state.
In the device in this embodiment, the temperature increase rate of the heating device is compared with a preset rate threshold, where the preset rate threshold is less than or equal to the temperature increase rate of the heating device in the absence of water, and when the temperature increase rate of the heating device is determined to be greater than the preset rate threshold, it is determined that the heating device of the instant heating type water dispenser is in a dry-heating state. The embodiment adopts the preset rate threshold value of the heating device as a main evaluation index, combines the temperature rise rate of the heating device under the waterless condition to use, and can judge whether the heating device is in a dry-heating state only by comparing the temperature rise rate of the heating device with the preset rate threshold value, so that the dry-heating state judgment speed is increased, the judgment efficiency is improved, and the dry-heating prevention can be more effectively and more quickly carried out.
In one embodiment, the processor 708 is further configured to: water is fed into the heating device at a preset pumping speed.
In the device in this embodiment, the processor drives the water pump to input water into the heating device at a preset pump speed, and under the condition that the heating device is in an anhydrous state or a state close to the anhydrous state, the processor of the instant heating type drinking water device controls the water pump to operate at the pump speed corresponding to the highest bearing voltage, so that water is input into the heating device at the fastest speed, and a high-efficiency dry burning prevention protection strategy of the instant heating type drinking water device is realized.
In one embodiment, the processor 708 is further configured to: acquiring the cavity volume of the heating device; determining water pumping time according to the cavity volume and the preset pumping speed; and inputting water into the heating device according to the preset pump speed and the water pumping time.
In the device in the embodiment, the water pumping time is determined by the processor, the water pump is started to input water into the heating device according to the preset pump speed and the determined water pumping time, the cavity volume of the heating device is limited, the numerical value of the cavity volume is large during dry-fire protection, the water pumping time is usually short, for example, several seconds, and water is normally heated and discharged later, so that the preheating function is realized in the whole water taking process, and the water using experience of a user cannot be influenced by dry-fire.
In one embodiment, the processor 708 is further configured to: under the condition that water is input into the heating device to fill the cavity of the heating device with water, the temperature of the outlet water of the instant heating type water drinking equipment is controlled, and the temperature of the outlet water is controlled at the target water taking temperature.
In the device of this embodiment, after the processor inputs water into the heating device to fill the cavity of the heating device with water, the temperature control program is started to control the temperature of the outlet water of the instant heating type drinking water device, so as to quickly obtain water meeting the target water taking temperature in a short time. The water pumping protection mode only acts for a short time and is linked with the normal water outlet mode, so that the influence of dry burning caused by backwater on a user can be reduced to the greatest extent, and the water consumption experience of the user is improved.
The anti-dry heating device for the instant heating type drinking equipment comprises a processor and a memory, wherein the processor comprises an inner core, and the inner core calls a corresponding program unit from the memory. The kernel can be set to be one or more than one, and the anti-dry heating method for the instant heating type drinking equipment is realized by adjusting the kernel parameters. The memory may include volatile memory in a computer readable medium, Random Access Memory (RAM) and/or nonvolatile memory such as Read Only Memory (ROM) or flash memory (flash RAM), and the memory includes at least one memory chip.
The embodiment of the invention provides a processor which is configured to execute the anti-dry heating method for the instant heating type drinking water equipment according to any one of the above embodiments.
The embodiment of the invention provides instant heating type drinking equipment, which comprises an anti-dry heating device for the instant heating type drinking equipment according to any one of the above embodiments.
The embodiment of the invention provides a machine-readable storage medium, wherein the machine-readable storage medium is stored with instructions, and the instructions are used for enabling a machine to execute the anti-dry heating method for the instant heating type drinking water equipment according to any one of the above embodiments.
The present application also provides a computer program product adapted to, when executed on a data processing device, execute a program initialising the anti-dry heating method for a tankless water fountain according to the above embodiments.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). The memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (17)
1. An anti-dry heating method for instant heating type drinking equipment is characterized by comprising the following steps:
acquiring the temperature of a heating device of the instant heating type drinking equipment under the condition that the instant heating type drinking equipment enters a preheating state;
determining a temperature rise rate according to the temperature;
determining that the heating device is in a dry-fire state according to the temperature rising rate; and
and inputting water into the heating device.
2. The method of claim 1, wherein said determining that the heating device is in a dry-fire condition based on the rate of temperature rise comprises:
judging whether the temperature rising rate is in a preset rate range or not;
and under the condition that the temperature rising rate is not in the preset rate range, determining that the heating device is in a dry-burning state.
3. The method according to claim 2, wherein the lower limit value of the preset rate range is a temperature rising rate of the heating device in a full water condition of the heating device; the upper limit value of the preset rate range is a temperature rising rate of the heating device in a case where the heating device is in a semi-water state.
4. The method of claim 1, wherein said determining that the heating device is in a dry-fire condition based on the rate of temperature rise comprises:
judging whether the temperature rising rate is greater than a preset rate threshold value, wherein the preset rate threshold value is less than or equal to the temperature rising rate of the heating device under the condition that the heating device is in the water-free state;
and under the condition that the temperature rising rate is judged to be larger than the preset rate threshold value, determining that the heating device is in a dry-burning state.
5. The method of claim 1, wherein said inputting water into said heating device comprises: water is fed into the heating device at a preset pumping speed.
6. The method of claim 5, wherein said inputting water into said heating device at a preset pump speed comprises:
acquiring the cavity volume of the heating device;
determining water pumping time according to the cavity volume and the preset pumping speed;
and inputting water into the heating device according to the preset pump speed and the water pumping time.
7. The method of any one of claims 1 to 6, further comprising:
and under the condition that water is input into the heating device to fill the cavity of the heating device with water, the temperature of the outlet water of the instant heating type water drinking equipment is controlled, so that the outlet water temperature is controlled at the target water taking temperature.
8. A processor, characterized in that it is configured to carry out the method of preventing dry-heating for a tankless water fountain according to any of claims 1 to 7.
9. An anti-dry heating device for instant heating type drinking equipment is characterized by comprising:
the heating device is used for heating the input water;
a temperature sensor for detecting a temperature of the heating device;
a pump for inputting water into the heating device; and
a processor configured to:
acquiring the temperature of a heating device of the instant heating type drinking equipment under the condition that the instant heating type drinking equipment enters a preheating state;
determining a temperature rise rate according to the temperature;
determining that the heating device is in a dry-fire state according to the temperature rising rate; and
and inputting water into the heating device.
10. The apparatus of claim 9, wherein the processor is further configured to:
judging whether the temperature rising rate is in a preset rate range or not;
and under the condition that the temperature rising rate is not in the preset rate range, determining that the heating device is in a dry-burning state.
11. The apparatus of claim 10, wherein the lower limit value of the preset rate range is a rate of temperature rise of the heating apparatus when the heating apparatus is in a full water condition; the upper limit value of the preset rate range is a temperature rising rate of the heating device in a case where the heating device is in a semi-water state.
12. The apparatus of claim 9, wherein the processor is further configured to:
judging whether the temperature rising rate is greater than a preset rate threshold value, wherein the preset rate threshold value is less than or equal to the temperature rising rate of the heating device under the condition that the heating device is in the water-free state;
and under the condition that the temperature rising rate is judged to be larger than the preset rate threshold value, determining that the heating device is in a dry-burning state.
13. The apparatus of claim 9, wherein the processor is further configured to: water is fed into the heating device at a preset pumping speed.
14. The apparatus of claim 13, wherein the processor is further configured to:
acquiring the cavity volume of the heating device;
determining water pumping time according to the cavity volume and the preset pumping speed;
and inputting water into the heating device according to the preset pump speed and the water pumping time.
15. The apparatus of any of claims 9 to 14, wherein the processor is further configured to:
and under the condition that water is input into the heating device to fill the cavity of the heating device with water, the temperature of the outlet water of the instant heating type water drinking equipment is controlled, so that the outlet water temperature is controlled at the target water taking temperature.
16. A tankless water dispenser device, comprising an arrangement for a tankless water dispenser device according to any of claims 9 to 15.
17. A machine readable storage medium having instructions stored thereon for causing a machine to perform the method of preventing dry-fire for a tankless water fountain of any of claims 1 to 7.
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| CN202011150268.5A CN112263145A (en) | 2020-10-23 | 2020-10-23 | Dry burning prevention method, processor and device for instant heating type drinking equipment |
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| CN113425168A (en) * | 2021-07-16 | 2021-09-24 | 中电海康慧联科技(杭州)有限公司 | Intelligent water adding method of electric steam box |
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Application publication date: 20210126 |