CN110017615A - Zero-cold-water control device with preheating overtemperature protection and control method - Google Patents
Zero-cold-water control device with preheating overtemperature protection and control method Download PDFInfo
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- CN110017615A CN110017615A CN201910239974.8A CN201910239974A CN110017615A CN 110017615 A CN110017615 A CN 110017615A CN 201910239974 A CN201910239974 A CN 201910239974A CN 110017615 A CN110017615 A CN 110017615A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 106
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000000523 sample Substances 0.000 claims abstract description 12
- 239000007789 gas Substances 0.000 description 19
- 230000006870 function Effects 0.000 description 14
- 206010053615 Thermal burn Diseases 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 230000001932 seasonal effect Effects 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 238000003287 bathing Methods 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Temperature (AREA)
Abstract
The invention discloses a zero cold water control device with preheating overtemperature protection, which comprises a water heater body, a circulating pump, a water outlet temperature probe, a gas valve and a controller, wherein the circulating pump, the water outlet temperature probe and the gas valve are respectively and electrically connected with the controller, and the controller can automatically match a preheating overtemperature temperature difference according to a preheating preset temperature in a preheating process. Also discloses a control method applying the zero-cold-water control device with preheating and overtemperature protection. The invention has at least the following advantages: 1. the magnitude of the preheating overtemperature difference can be automatically adjusted according to the preheating preset temperature, so that the zero-cold-water control device can meet the requirements of water use occasions in different seasons, and the self-adaptive capacity and the intelligent degree of the product are further improved; 2. the zero-cold-water control device has the preheating overtemperature protection function, effectively prevents the outlet water temperature from being overhigh in the preheating process, improves the water use safety and the water use experience, and avoids hot water scalding accidents.
Description
Technical field
The present invention relates to family's electro-technical fields, more particularly to one kind to be suitable for gas heater or dual-purpose stove, has preheating
The zero cold water control device and control method of overtemperature prote.
Background technique
Zero cold water gas heater has become water heater industrial trend because it can be realized hot water plug and play, and starting is pre-
When heat function, built-in circulating pump operates the outer hot-water line of driving machine, the water of return pipe circulates and realizes preheating.
Currently, existing zero cold water gas heater in warm when return water temperature reaches program preheating temperature
(i.e. TReturn water> TPreheating), then it closes circulating pump and exits preheating.However in the middle and later periods of warm, outlet water temperature of water heater TWater outletIt is past
Toward higher than preset temperature TIt is default, and it is directly proportional to the minimum firepower of water heater to preheat overtemperature temperature difference △ T.When the minimum of water heater
Firepower is larger, and preset temperature TIt is defaultWhen higher (such as 50 DEG C), program preheating temperature TPreheatingWith increasing accordingly, then heat after preheating is completed
Hydrophone exit water temperature TWater outletOvertemperature temperature difference △ T with preset temperature is up to 10 DEG C or more, if opening hot water tap at this time, outflow one
The relatively boiling hot hot water (up to 60 DEG C) of section, may cause scald accident, influences user's bathing experience when serious.
Summary of the invention
The purpose of the invention is to statuses in view of the prior art, and it is cold to provide a kind of zero with preheating overtemperature prote
Water controller has overtemperature preheating protective function, and the water temperature over-high of warm circulation line can be effectively prevented, and is promoted and is used
Family tested with water body and safety.
Additionally providing a kind of application simultaneously, this has the control method of zero cold water control device of preheating overtemperature prote.
A kind of zero cold water control device with preheating overtemperature prote of offer according to the present invention, including water heater sheet
Body, inner inlet pipeline, internal outlet pipeline, internal gas supply access, circulating pump and controller, the circulating pump are arranged described
It is electrically connected on inner inlet pipeline and with the controller, wherein being provided in the internal outlet pipeline for detecting water temperature
The leaving water temperature of degree is popped one's head in, and gas valve, the leaving water temperature probe and gas valve difference are equipped on the gas supply access of inside
It is electrically connected with the controller, the controller can be according to preheating one preheating overtemperature of preset temperature Auto-matching in warm
The temperature difference.
It further, further include the operator being electrically connected with the controller.
Further, the operator, which is included at least, preheats the temperature setting key of preset temperature and for opening for setting
The preheating function key of pre- heat function, when the preheating function key starts, the controller can be set according to the temperature setting key
One preheating overtemperature temperature difference of preheating preset temperature Auto-matching.
A kind of a kind of application of offer according to the present invention zero cold water control with preheating overtemperature prote as described above
The control method of device, the controller can be according to preheating one preheating overtemperature temperature of preset temperature Auto-matching in warm
Difference, and when the return water temperature that leaving water temperature probe detects is greater than the sum of preheating preset temperature and the preheating overtemperature temperature difference
The gas valve is controlled to close.
Further, control method includes the following steps:
S1: setting preheating preset temperature TIt is default；
S2: the starting time of the starting preheating function key or the setting preheating function key；
S3: the controller is according to preheating preset temperature TIt is defaultOne preheating overtemperature temperature difference △ T of Auto-matching；
S4: the circulating pump and the gas valve, and ignition operation are opened；
S5: judge leaving water temperature TWater outletWhether T is greater thanIt is default+ △ T then enters in next step in this way, such as otherwise continues to preheat；
S6: closing the gas valve, terminates preheating.
Further, the preheating overtemperature temperature difference △ T passes through formula
It determines, △ T in formulamaxThe overtemperature temperature difference, △ T are preheated for maximumminThe overtemperature temperature difference, T are preheated for minimumminIt is default for minimum preheating
Temperature, TmaxPreset temperature is preheated for highest.
Further, the preheating preset temperature TIt is defaultIt is set for fixed value or by the operator or by the control
The parameter setting mode of device processed is set；The △ T be DEG C~0 DEG C；The TminWith the TmaxRespectively fixed value, it is described
△TminWith △ TmaxRespectively fixed value or set by the parameter setting mode of controller.
Compared with prior art, the present invention having the following beneficial effects:
1. the size for preheating the overtemperature temperature difference can enable zero cold water control device by according to preheating preset temperature automatic adjustment
Enough meet Various Seasonal uses water occasion demand, further improves the adaptive ability and intelligence degree of product；
2. zero cold water control device of the invention has preheating overheat protection function, warm water outlet is effectively prevented
Temperature is excessively high, promotes water safety and is tested with water body, hot water scald accident is avoided to occur.
Detailed description of the invention
Fig. 1 is the structural schematic diagram in embodiment 1 with zero cold water control device of preheating overtemperature prote；
Fig. 2 is the structural schematic diagram of operator in Fig. 1；
Fig. 3 is the flow chart in embodiment 2 with the control method of zero cold water control device of preheating overtemperature prote；
Fig. 4 is the relational graph that the overtemperature temperature difference and preset temperature are preheated in embodiment 2.
Specific embodiment
The present invention will be described for following embodiment, but the present invention is not limited to these examples system.To of the invention
Specific embodiment is modified or some technical features can be equivalently replaced, without departing from the spirit of the present invention program,
It should all cover within the scope of the technical scheme claimed by the invention.
Embodiment 1
Referring to Fig. 1, a kind of zero cold water control device with preheating overtemperature prote of the present embodiment, including water heater body
1, inner inlet pipeline 11, internal outlet pipeline 12, internal gas supply access 13, circulating pump 2 and controller 3, leaving water temperature probe 5
With gas valve 6.Circulating pump 2 is arranged on internal inlet pipeline 11 and is electrically connected with controller 3.5 setting of leaving water temperature probe exists
Internal outlet pipeline 12 is simultaneously electrically connected with controller 3, the leaving water temperature signal feedback for detecting leaving water temperature and will test
To controller 3.The setting of gas valve 6 is electrically connected in inside gas supply access 13 and with controller 3.Controller 3 can root in warm
According to preheating one preheating overtemperature temperature difference of preset temperature Auto-matching.In practical warm, when leaving water temperature probe 5 detects
Return water temperature when being greater than preheating preset temperature and preheating the sum of overtemperature temperature difference, controller 3 controls gas valve 6 and closes, so that zero
Cold water control device has adaptive and preheating overtemperature prote dual function, and intelligent high, can satisfy Various Seasonal uses water
Occasion demand, while safety is good, efficiently avoids scald accident, raising is tested with water body.
Further, which further includes operator 4, which is electrically connected with controller 3, is used for
Setting preheating preset temperature.In other embodiments, preheating preset temperature can also be fixed value or the parameter by controller 3
Set-up mode is set.Preferably, the preheating preset temperature of the present embodiment is set by operator 4.
Referring to fig. 2, further, operator 4 includes at least 41 He of temperature setting key for setting preheating preset temperature
For opening the preheating function key 42 of pre- heat function, when preheating function key 42 starts, controller 3 can be set according to temperature setting key 41
Fixed one preheating overtemperature temperature difference of preheating preset temperature Auto-matching.Specifically, the preheating overtemperature temperature difference in warm with
Preset temperature set by temperature setting key 41 has inverse proportion linear relationship, in order to keep zero cold water control device automatic
The difference water occasion of Various Seasonal is adapted to, intelligent, guarantee water safety is improved.
Preferably, temperature setting key 41 is single key or Macintosh.Temperature setting key 41 includes heating key in the present embodiment
411 and cooling key 412, the preset temperature of required water can be set by heating key 411 and the key 412 that cools down with this user.
Embodiment 2
Referring to Fig. 3, a kind of zero cold water control with preheating overtemperature prote described in a kind of Application Example 1 of the present embodiment
The control method of device processed comprising zero cold water control device described in embodiment 1, controller 3 can be according to pre- in warm
One preheating overtemperature temperature difference of hot preset temperature Auto-matching, and be greater than in advance in the return water temperature that leaving water temperature probe 5 detects
Control gas valve 6 is closed when the sum of hot preset temperature and the preheating overtemperature temperature difference.
Further, the control method of the present embodiment includes the following steps:
S1: setting preheating preset temperature TIt is default；Specifically, be powered zero cold water control device, and user can use according to actual needs
Coolant-temperature gage preheats preset temperature TIt is defaultControl is set or passed through by the heating key 411 and cooling key 412 of temperature setting key 41
The control program default temperature of device 3 processed determines or is set as fixed value；
S2: the starting time of starting preheating function key 42 or setting preheating function key 42；
S3: controller 3 is according to preset temperature TIt is defaultOne preheating overtemperature temperature difference △ T of Auto-matching；
S4: circulating pump 2 and gas valve 6, and ignition operation are opened；Specifically, when starting preheating function key 42, controller 3
Lead to control loop pump 2 to open so that recirculated water is recycled, and is controlled gas valve 6 and opened to provide required combustion gas of burning, then control
The burner ignition of zero cold water control device is made, warm-up cycle water is started；
S5: judge leaving water temperature TWater outletWhether T is greater thanIt is default+ △ T then enters in next step in this way, such as otherwise continues to preheat；Tool
Body, leaving water temperature probe 5 persistently detects the water flow temperature of internal outlet pipeline 12 in warm, and what be will test goes out
Coolant-temperature gage TWater outletSignal feeds back to controller 3, and controller 3 persistently judges leaving water temperature TWater outletWith TIt is defaultThe relationship of+△ T, to realize energy
While enough guaranteeing zero preheating cold water effect, the leaving water temperature T because of internal outlet pipe 12 can also be avoidedWater outletIt is excessively high and scald use
Family, waste electric energy and combustion gas are conducive to improve safety and user experience；
S6: closing gas valve 6 terminates preheating.Specifically, work as TWater outlet> TIt is defaultWhen+△ T, 3 control loop of controller pumps 2 Hes
Gas valve 6 is closed, and preheating is terminated, in order to carry out overtemperature blowout protection, avoid the occurrence of warm water outlet overtemperature it is high and
User is scalded, water safety is improved and is tested with water body.
Further, in the S3 step, preheating overtemperature temperature difference △ T is fixed value or the parameter setting mode by controller 3
It is set.
Referring to fig. 4, further, preheating overtemperature temperature difference △ T passes through formula
It determines, △ T in formulamaxThe overtemperature temperature difference, △ T are preheated for maximumminThe overtemperature temperature difference, T are preheated for minimumminIt is default for minimum preheating
Temperature, TmaxPreset temperature is preheated for highest, it is seen then that by the 3 matched preheating overtemperature temperature difference △ T of institute of controllerOvertemperatureWith preset temperature
TIt is defaultWith inverse proportion linear relationship.As preset temperature TIt is defaultWhen value is higher, preheating overtemperature temperature difference △ T becomes smaller therewith, Neng Gouyou
Prevent to effect the preheating excessively high influence bathing experience of leaving water temperature；As preset temperature TIt is defaultWhen lower, preheating overtemperature temperature difference △ T is therewith
Become larger, avoids being easier to triggering preheating overtemperature prote because summer, inflow temperature was excessively high, it is ensured that recirculated water can be fully warmed-up.
Preferably, preset temperature TIt is defaultIt is 35 DEG C~60 DEG C, preheating overtemperature temperature difference △ T is 5 DEG C~10 DEG C, TminAnd TmaxPoint
Not Wei fixed value, △ TminWith △ TmaxRespectively fixed value or set by controller 3.
Above-described is only some embodiments of the present invention.For those of ordinary skill in the art, not
Under the premise of being detached from the invention design, various modifications and improvements can be made, these belong to protection model of the invention
It encloses.
Claims (8)
1. a kind of zero cold water control device with preheating overtemperature prote, including water heater body (1), inner inlet pipeline
(11), internal outlet pipeline (12), internal gas supply access (13), circulating pump (2) and controller (3), circulating pump (2) setting
It is electrically connected on the inner inlet pipeline (11) and with the controller (3), which is characterized in that in the internal outlet pipeline
(12) it is provided with the leaving water temperature probe (5) for detecting leaving water temperature, gas valve is equipped on inside gas supply access (13)
(6), the leaving water temperature probe (5) and the gas valve (6) are electrically connected with the controller (3) respectively, the controller (3)
Warm can according to preheating one preheating overtemperature temperature difference of preset temperature Auto-matching.
2. a kind of zero cold water control device with preheating overtemperature prote as described in claim 1, which is characterized in that further include
The operator (4) being electrically connected with the controller (3).
3. a kind of zero cold water control device with preheating overtemperature prote as claimed in claim 2, which is characterized in that the behaviour
Make device (4) and includes at least the temperature setting key (41) for setting preheating preset temperature and the pre- hot merit for opening pre- heat function
Energy key (42), when the preheating function key (42) starts, what the controller (3) can set according to the temperature setting key (41)
Preheat one preheating overtemperature temperature difference of preset temperature Auto-matching.
4. a kind of control using a kind of zero cold water control device with preheating overtemperature prote described in any one of claim 3
Method processed, which is characterized in that the controller (3) can be super according to preset temperature Auto-matching one preheating of preheating in warm
The temperature difference, and the return water temperature detected in leaving water temperature probe (5) is greater than preheating preset temperature and preheating overtemperature temperature
The gas valve (6) closing is controlled when the sum of difference.
5. control method as claimed in claim 4, which comprises the steps of:
S1: setting preheating preset temperature TIt is default；
S2: the starting time of starting preheating function key (42) or setting preheating function key (42)；
S3: the controller (3) is according to preheating preset temperature TIt is defaultOne preheating overtemperature temperature difference △ T of Auto-matching；
S4: the circulating pump (2) and the gas valve (6), and ignition operation are opened；
S5: judge leaving water temperature TWater outletWhether T is greater thanIt is default+ △ T then enters in next step in this way, such as otherwise continues to preheat；
S6: closing the gas valve (6), terminates preheating.
6. control method as claimed in claim 5, which is characterized in that in the S3 step, the preheating overtemperature temperature difference △ T passes through
FormulaIt determines, △ T in formulamaxThe overtemperature temperature difference, △ are preheated for maximum
TminThe overtemperature temperature difference, T are preheated for minimumminFor minimum preheating preset temperature, TmaxPreset temperature is preheated for highest.
7. such as control method described in claim 5 or 6, which is characterized in that the preheating preset temperature TIt is defaultFor fixed value or lead to
It crosses the operator (4) setting or is set by the parameter setting mode of the controller (3)；The △ T is 5 DEG C~10
℃。
8. control method as claimed in claim 6, which is characterized in that the TminWith the TmaxRespectively fixed value, it is described
△TminWith △ TmaxRespectively fixed value or the parameter setting mode by controller (3) is set.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910239974.8A CN110017615B (en) | 2019-03-27 | 2019-03-27 | Zero-cold-water control device with preheating overtemperature protection and control method |
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| CN201910239974.8A CN110017615B (en) | 2019-03-27 | 2019-03-27 | Zero-cold-water control device with preheating overtemperature protection and control method |
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| CN110017615A true CN110017615A (en) | 2019-07-16 |
| CN110017615B CN110017615B (en) | 2021-02-26 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110398054A (en) * | 2019-07-30 | 2019-11-01 | 华帝股份有限公司 | Self-adaptive temperature-control zero-cold-water gas water heater and control method thereof |
| CN110398055A (en) * | 2019-07-30 | 2019-11-01 | 华帝股份有限公司 | Zero-cold-water gas water heater capable of limiting preheating temperature and control method thereof |
| CN110454983A (en) * | 2019-07-26 | 2019-11-15 | 华帝股份有限公司 | Control method for oxygen-poor flameout protection time of gas water heater and gas water heater |
| CN111351227A (en) * | 2020-02-13 | 2020-06-30 | 青岛经济技术开发区海尔热水器有限公司 | Water heater control method with zero cold water circulation function and water heater |
| CN111426051A (en) * | 2020-03-25 | 2020-07-17 | 华帝股份有限公司 | Gas water heater with current limiting device and control method thereof |
| CN112283953A (en) * | 2019-07-22 | 2021-01-29 | 芜湖美的厨卫电器制造有限公司 | Hot water treatment device and control method and device thereof |
| CN112484312A (en) * | 2020-12-03 | 2021-03-12 | 芜湖美的厨卫电器制造有限公司 | Control method and control device for zero-cold-water gas water heater and processor |
| CN114484886A (en) * | 2022-02-18 | 2022-05-13 | 广州迪森家居环境技术有限公司 | Zero-cold-water control method with preheating overtemperature protection and control device thereof |
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| CN112283953B (en) * | 2019-07-22 | 2022-09-23 | 芜湖美的厨卫电器制造有限公司 | Hot water treatment device and control method and device thereof |
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| CN110454983A (en) * | 2019-07-26 | 2019-11-15 | 华帝股份有限公司 | Control method for oxygen-poor flameout protection time of gas water heater and gas water heater |
| CN110454983B (en) * | 2019-07-26 | 2022-01-07 | 华帝股份有限公司 | Control method for oxygen-poor flameout protection time of gas water heater and gas water heater |
| CN110398055A (en) * | 2019-07-30 | 2019-11-01 | 华帝股份有限公司 | Zero-cold-water gas water heater capable of limiting preheating temperature and control method thereof |
| CN110398054A (en) * | 2019-07-30 | 2019-11-01 | 华帝股份有限公司 | Self-adaptive temperature-control zero-cold-water gas water heater and control method thereof |
| CN110398054B (en) * | 2019-07-30 | 2023-09-05 | 华帝股份有限公司 | Self-adaptive temperature-control zero-cooling water gas water heater and control method thereof |
| CN111351227A (en) * | 2020-02-13 | 2020-06-30 | 青岛经济技术开发区海尔热水器有限公司 | Water heater control method with zero cold water circulation function and water heater |
| CN111351227B (en) * | 2020-02-13 | 2021-10-19 | 青岛经济技术开发区海尔热水器有限公司 | Water heater control method with zero cold water circulation function and water heater |
| CN111426051A (en) * | 2020-03-25 | 2020-07-17 | 华帝股份有限公司 | Gas water heater with current limiting device and control method thereof |
| CN112484312A (en) * | 2020-12-03 | 2021-03-12 | 芜湖美的厨卫电器制造有限公司 | Control method and control device for zero-cold-water gas water heater and processor |
| CN114484886B (en) * | 2022-02-18 | 2023-08-08 | 广州迪森家居环境技术有限公司 | Zero cold water control method with preheating overtemperature protection and control device thereof |
| CN114484886A (en) * | 2022-02-18 | 2022-05-13 | 广州迪森家居环境技术有限公司 | Zero-cold-water control method with preheating overtemperature protection and control device thereof |
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