CN105674577B - A kind of hot water circuit control system with independent learning ability - Google Patents
A kind of hot water circuit control system with independent learning ability Download PDFInfo
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- CN105674577B CN105674577B CN201610182814.0A CN201610182814A CN105674577B CN 105674577 B CN105674577 B CN 105674577B CN 201610182814 A CN201610182814 A CN 201610182814A CN 105674577 B CN105674577 B CN 105674577B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
- F24H9/2021—Storage 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
- F24H9/0005—Details for water heaters
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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)
- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
Abstract
The present invention provides a kind of hot water circuit control system with independent learning ability, it include: water inlet manifold, water heater, hot water circulating device and several water spots, the water inlet manifold and water heater, with being connected respectively into cold water pipe, second into cold water pipe by first between water spot, the water heater and with passing through hot-water outlet pipe's connection between water spot；It is characterized in that, the hot water circulating device is mounted on hot-water outlet pipe, hot-water outlet pipe is connected to second into cold water pipe with return pipe at distalmost end water spot, and is equipped with check valve on return pipe, the conducting direction of the check valve is that hot-water outlet pipe flows to second into cold water pipe.The present invention controls pump operation set time when preheating its next time by autonomous learning, it is can guarantee in hot-water outlet pipe in this way full of hot water, and second is still warm water or cold water into cold water pipe preheating after the completion, thoroughly solves the problems, such as not being available cold water when serving as water return pipeline into cold water pipe using second after the completion of caused preheating.
Description
Technical field
The present invention relates to water heater control technology field more particularly to a kind of hot water circuit controls with independent learning ability
System processed.
Background technique
For improve water heater use water comfort, hot water circulating device is installed on the water heater having with realize reservation or
The functions such as instant-heating.Currently, 1) common hot water circuit control technology by countdown mode mainly include the following types: made
For a period of time, water in circulation pipe is heated for pump working.2) it is recycled by subscription time, i.e., controller leads in subscription time section
It crosses to circulation pipe temperature detection to determine water heater start and stop.3) manually opened water pump, in water feeding of heater end (i.e. backwater end)
Whether detection temperature is completed to determine that single is i.e. warm.4) distalmost end hot water point temperature is detected by temperature sensor to decide whether
I.e. hot completion.
However, existing hot water circulating device is generally mounted in water feeding of heater end, the problem of most serious is exactly hot water
Device water inlet end (backwater end) temperature and not up to set temperature, and water outlet of water heater end temperature is very high, so as to cause product
Comfort is poor.
In addition, existing hot water circulating device without independent learning ability, have manually, it is automanual, remote control etc.
Deng generally requiring user and set many parameters, operate relative complex.
Summary of the invention
Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a kind of controls simply, adaptivity is strong,
With the good hot water circulating device control system of water comfort.
To achieve the above objectives, the present invention adopts the following technical scheme that.
A kind of hot water circuit control system with independent learning ability, comprising: water inlet manifold, water heater, hot water circuit
Device and it is several use water spot, the water inlet manifold and water heater, between water spot respectively by first into cold water pipe, second into cold
Water pipe connection, the water heater and between water spot pass through hot-water outlet pipe connection；It is characterized in that, the hot water circulating device peace
On hot-water outlet pipe, hot-water outlet pipe is connected to second into cold water pipe with return pipe at distalmost end water spot, and in return water
Pipe is equipped with check valve, and the conducting direction of the check valve is that hot-water outlet pipe flows to second into cold water pipe.
As with improvement, the hot water circulating device includes: controller, water pump, water flow sensor and temperature sensor,
The water pump, water flow sensor and temperature sensor are serially connected on hot-water outlet pipe, and the controller and water pump, water flow sense
Device and temperature sensor control connection.
As with improvement, the hot water circulating device further includes having water tank, and the water tank is connected to the water outlet of water pump
End.
As with improvement, the hot water circulating device further includes having relief valve, and the relief valve is connected to hot water circuit dress
The water outlet set.
As with improvement, the hot water circuit control system shut down every time with i.e. heat and reservation function, in water heater or
When being then turned on immediate thermal function or reservation function after power-off, hot water circuit control system automatically records water pump and operates total time for the first time
t；
After the completion of i.e. hot, immediate thermal function is again turned on before shutdown or power-off, then the pump operation time is α1T, 0 < α1≤
1；
After the completion of reservation, in subscription time section, if the water temperature that temperature sensor detects needs again lower than setting value
When secondary starting water pump, pump operation subscription time is α2T, 0 < α2≤1。
As with improvement, water pump operates the calculation method of total time t for the first time are as follows:
1) enter reservation or immediate thermal function by water heater power button, the timing means of pump operation, controller starts timing；
2) pump operation is more than after 1 minute, and temperature sensor samples a temperature value, and continuous sampling 20 every 500ms
It is secondary；
3) when the Wen Cha ⊿ T of adjacent temperature value twice meets: when -1K ≤ ⊿ T≤1K, controller calculates average value TIt is average；
4) work as TIt is averageWhen equal to set temperature T on water heater, controller, which stops calculating average value, simultaneously continues judgement sampling temperature
Spend T1；
5) as T1 >=T+ β, water pump shuts down, and controller records water pump and operates total time for the first time；β according to T value come
Setting.
As with improvement, in subscription time section, needed again if the water temperature that temperature sensor detects is lower than setting value
When secondary starting water pump, then pump operation subscription time is fixed as
As with improvement, in subscription time section, being again started up for water pump is controlled according to return difference condition；Work as temperature
The difference for the set temperature T on temperature Td and water heater that sensor detects is lower than some value T0, when meeting Td < T-T0, water pump
It is again started up；The value range of T0 are as follows: 3-15 DEG C.
As with improvement, the water heater is gas heater, and the single longest burning time of gas heater is according to such as
Lower condition controls:
1. the water pump longest duration of runs is more than 30min；
2. temperature sensor detects temperature > 65 DEG C in continuous 5S；
When meeting any one in conditions above, controller is forced to stop pump operation.
Compared with prior art, the beneficial effects of the present invention are:
One, it since hot water circulating device is mounted on water heater hot-water outlet pipe, and is incited somebody to action in distalmost end water spot return pipe
Hot-water outlet pipe is connected to second into cold water pipe, and not only constant temperature, resisting temperature overshoot-effects are good, but also serve as using second into cold water pipe
Water return function, simple structure, convenient control.
Two, the time required for being enclosed by water circulation one in controller accurate calculation pipeline passes through its next time of process control
Pump operation set time when preheating is can guarantee in this way full of hot water in hot-water outlet pipe, and second preheats completion into cold water pipe
Afterwards still it is warm water or cold water, can not makes after the completion of caused preheating when thoroughly solving to serve as water return pipeline into cold water pipe using second
The problem of with cold water, is able to achieve " opening i.e. cold " mode again while realization " instant-heating ".
Detailed description of the invention
Fig. 1 show hot water circulating device application schematic diagram provided by the invention.
Fig. 2 show hot water circulating device control flow chart provided by the invention.
Description of symbols:
1: water heater, 2: using water spot, 3: water inlet manifold, 4: hot-water outlet pipe, 5: the first into cold water pipe, and 6: the second into cold water
Pipe, 7: hot water circulating device, 8: return pipe, 9: check valve.
Specific embodiment
Essence of the invention is more fully understood for convenience of those skilled in the art, with reference to the accompanying drawing to of the invention specific
Embodiment is described in detail.
As shown in Figure 1, a kind of hot water circuit control system with independent learning ability, comprising: water heater 1, Ruo Ganyong
Water spot 2, water inlet manifold 3, hot-water outlet pipe 4, first are into cold water pipe 5, second into cold water pipe 6, hot water circulating device 7,8 and of return pipe
Check valve 9, water heater 1 and between water spot 2 pass through hot-water outlet pipe 4 connect, between water heater 1 and water inlet manifold 3 pass through first
It connects, is connected with passing through second between water spot 2 and water inlet manifold 3 into cold water pipe 6, hot water circulating device 7 is mounted on into cold water pipe 5
On hot-water outlet pipe 4, hot-water outlet pipe is connected to second into cold water pipe 6 with return pipe 8 at distalmost end water spot, and in return pipe
Check valve 9 is set on 8, and the conducting direction of check valve 9 is that hot-water outlet pipe 4 flows to second into cold water pipe 6.
Wherein, the water heater is gas heater, and the distalmost end is to be characterized with hot water stream through path with water spot,
The hot water flowed out from water heater reaches a certain path longest flowed through with water spot, then this is distalmost end water spot with water spot.
The hot water circulating device 7 is mainly by controller, operation display, water flow sensor, temperature sensor and water
Pump is constituted.The water pump, water flow sensor and temperature sensor are serially connected on hot-water outlet pipe, the controller and water pump, water
Flow sensor and temperature sensor control connection, the operation display are connect with controller signals.
Further, to avoid temperature overshot phenomenon, water tank, the water tank are additionally provided on hot water circulating device 7
It is connected to the water outlet of water pump.Further, for convenience of the gas in discharge line, the hot water circulating device further includes having
Relief valve, the relief valve are connected to the water outlet of hot water circulating device.
A kind of hot water circuit control system with independent learning ability provided in this embodiment has " i.e. hot " " reservation "
" water control " " pressurization " four big function, concrete function are accomplished by
1. i.e. heat (effectively primary), reservation (first time) all have independent learning ability, i.e., every time shutdown or after powering off
Opening is heat or reservation function, automatically records pump operation total time t.
After the completion of i.e. hot, immediate thermal function is again turned on before shutdown or power-off, then the pump operation time is α1T, 0 < α1≤
1。
After the completion of reservation, in subscription time section, if the water temperature that temperature sensor detects needs again lower than setting value
When secondary starting water pump, pump operation subscription time is α2T, 0 < α2≤ 1, preferred α in the present embodiment2It is 3/5.It is reserving in this way
In period, circulator is fixed (3/5) t time according to setting return difference temperature and heats, and ensure that hot-water outlet pipe's any time
It is required hot water, second into cold water pipe pipe is warm water or cold water, is thoroughly solved without cannot after the completion of return pipe circulation reservation
With the technical bottleneck of cold water, i.e., " instant-heating " and " opening i.e. cold " double mode are realized in the case where no water return pipeline；And
System is reserved according to book setting condition automatically in reservation periods next time, without being configured every time.
In subscription time section, being again started up for water pump is controlled according to return difference condition；When temperature sensor detects
To temperature Td and water heater on set temperature T difference be lower than some value T0, when meeting Td < T-T0, water pump is again started up.
Wherein: Td --- Current Temperatures, the temperature real-time monitored by circulator temperature sensor.
T --- set temperature on water heater, i.e. temperature sensor sampling average value T in Fig. 2, wherein 36 DEG C≤T≤60 DEG C.
T0 --- temperature gap, setting range are 3-15 DEG C, 5 DEG C of system default.
As shown in Fig. 2, water pump operates the calculation method of total time t for the first time are as follows:
1) enter reservation or immediate thermal function by water heater power button, the timing means of pump operation, controller starts timing.
2) pump operation is more than after 1 minute, and temperature sensor samples a temperature value, and continuous sampling 20 every 500ms
It is secondary.
3) when the Wen Cha ⊿ T of adjacent temperature value twice meets: when -1K ≤ ⊿ T≤1K, controller calculates average value TIt is average。
4) work as TIt is averageWhen equal to set temperature T on water heater, controller, which stops calculating average value, simultaneously continues judgement sampling temperature
Spend T1.
5) as T1 >=T+ β, water pump shuts down, and controller records water pump and operates total time for the first time；β according to T value come
Setting.
It opens reservation function and is reserving in the period, while meeting return difference condition, then subsequent reservation is sentenced according to return difference condition
Disconnected whether to start water pump, after reaching entry condition, the fixation of pump operation subscription time is (3/5) t, and return difference temperature sets principle
It is as follows:
2. water control: user is made by simply switch hydrodynamic(al), and master controller completes the detection to water flow signal, water flow
When signal meets unlocking condition, drive immediate thermal function, i.e., it is hot realize it is above-mentioned 1. as described in.
3. pressurization: after opening function of increasing pressure, the continuous 5s or more of water flow signal；Or first have water-flow signal, increase opening
After pressing function, when continuing to test the continuous 5S or more of water flow signal, after pump operation 1min, temperature sensor sampling, record temperature
Water pump remains in operation degree after metastable average value T for the first time, until at temperature sensor detect T1=T+5 DEG C of temperature
Until, water pump shuts down at this time, and pressurization terminates.
To guarantee that also there is single longest burning time and maximum temperature to limit item for safety, the hot water circuit control system
Part, specific as follows:
1. the water pump longest duration of runs is more than 30min.
2. temperature sensor detects temperature > 65 DEG C in continuous 5S.
When meeting any one in conditions above, controller is forced to stop pump operation, and detects temperature mistake
Circulator display screen can show respective code when high, prompt user's water temperature over-high；Consider simplifying for circulator control system
Property, circulator only sets return difference condition without temperature setting.In addition to increase user experience, the present embodiment provides
Hot water circulating device control system be additionally provided with user set set time mode, when example user selects this mode, " i.e.
Pump operation time (2~15min) can be set under the functions such as heat ", " reservation ".
The above specific embodiment is described in detail for the essence of the present invention, but can not be come with this to of the invention
Protection scope is limited.It should be evident that under the inspiration of the essence of the present invention, those of ordinary skill in the art can also be into
The many improvement and modification of row, it should be noted that these improvement and modification all fall in claims of the invention it
It is interior.
Claims (7)
1. a kind of hot water circuit control system with independent learning ability, comprising: water inlet manifold, water heater, hot water circuit dress
Set with several with water spot, the water inlet manifold and water heater, between water spot respectively by first into cold water pipe, second into cold water
Pipe connection, the water heater and between water spot pass through hot-water outlet pipe connection；It is characterized in that, the hot water circulating device installation
On hot-water outlet pipe, hot-water outlet pipe is connected to second into cold water pipe with return pipe at distalmost end water spot, and in return pipe
It is equipped with check valve, the conducting direction of the check valve is that hot-water outlet pipe flows to second into cold water pipe；
The hot water circulating device includes: controller, water pump, water flow sensor and temperature sensor, the water pump, water flow
Sensor and temperature sensor are serially connected on hot-water outlet pipe, the controller and water pump, water flow sensor and temperature sensor
Control connection；
The hot water circuit control system is then turned on i.e. hot with i.e. heat and reservation function after water heater shuts down or powers off every time
When function or reservation function, hot water circuit control system automatically records water pump operating total time t for the first time；
After the completion of i.e. hot, immediate thermal function is again turned on before shutdown or power-off, then the pump operation time is α1T, 0 < α1≤1；
After the completion of reservation, in subscription time section, if the water temperature that temperature sensor detects needs to open again lower than setting value
When dynamic water pump, pump operation subscription time is α2T, 0 < α2≤1。
2. a kind of hot water circuit control system with independent learning ability according to claim 1, which is characterized in that institute
Stating hot water circulating device further includes having water tank, and the water tank is connected to the water outlet of water pump.
3. a kind of hot water circuit control system with independent learning ability according to claim 2, which is characterized in that institute
Stating hot water circulating device further includes having relief valve, and the relief valve is connected to the water outlet of hot water circulating device.
4. a kind of hot water circuit control system with independent learning ability according to claim 1, which is characterized in that water
Pump operates the calculation method of total time t for the first time are as follows:
1) enter reservation or immediate thermal function by water heater power button, the timing means of pump operation, controller starts timing；
2) pump operation is more than after 1 minute, and temperature sensor samples a temperature value, and continuous sampling 20 times every 500ms；
3) when the Wen Cha ⊿ T of adjacent temperature value twice meets: when -1K ≤ ⊿ T≤1K, controller calculates average value TIt is average；
4) work as TIt is averageWhen equal to set temperature T on water heater, controller, which stops calculating average value, simultaneously to be continued to judge sample temperature
T1；
5) as T1 >=T+ β, water pump shuts down, and controller records water pump and operates total time for the first time；β is set according to T value
It is fixed.
5. a kind of hot water circuit control system with independent learning ability according to claim 1, which is characterized in that
In subscription time section, if the water temperature that temperature sensor detects needs to be again started up water pump lower than setting value, water pump fortune
Turn subscription time to be fixed ast。
6. a kind of hot water circuit control system with independent learning ability according to claim 1, which is characterized in that
In subscription time section, being again started up for water pump is controlled according to return difference condition；As the temperature Td that temperature sensor detects
And the difference of the set temperature T on water heater is lower than some value T0, and when meeting Td < T-T0, water pump is again started up；The value range of T0
Are as follows: 3-15 DEG C.
7. a kind of hot water circuit control system with independent learning ability according to claim 1, which is characterized in that institute
Stating water heater is gas heater, and the single longest burning time of gas heater controls according to following condition:
1. the water pump longest duration of runs is more than 30min；
2. temperature sensor detects temperature > 65 DEG C in continuous 5S；
When meeting any one in conditions above, controller is forced to stop pump operation.
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| CN201610182814.0A CN105674577B (en) | 2016-03-26 | 2016-03-26 | A kind of hot water circuit control system with independent learning ability |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610182814.0A CN105674577B (en) | 2016-03-26 | 2016-03-26 | A kind of hot water circuit control system with independent learning ability |
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| CN105674577A CN105674577A (en) | 2016-06-15 |
| CN105674577B true CN105674577B (en) | 2019-06-07 |
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| CN201610182814.0A Active CN105674577B (en) | 2016-03-26 | 2016-03-26 | A kind of hot water circuit control system with independent learning ability |
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| CN106196622A (en) * | 2016-07-20 | 2016-12-07 | 广东万家乐燃气具有限公司 | A kind of intelligent protection reminding method of central gas water-heater system |
| CN106152521B (en) * | 2016-08-04 | 2022-03-22 | 广东万家乐燃气具有限公司 | Circulating device capable of self-circulating and water heater with circulating device |
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| CN110285578A (en) * | 2019-05-13 | 2019-09-27 | 广东万家乐燃气具有限公司 | A kind of zero cold water circulating system |
| CN110736259B (en) * | 2019-09-20 | 2021-07-20 | 华帝股份有限公司 | Zero-cold-water hot water supply system and control method thereof |
| CN112648738B (en) * | 2019-10-10 | 2022-05-27 | 青岛海尔新能源电器有限公司 | Zero-cold-water heater system and control method |
| CN111397216A (en) * | 2020-03-25 | 2020-07-10 | 广东万和新电气股份有限公司 | Zero-cold-water control method and device for water heater, water heater and computer equipment |
| WO2023234787A1 (en) * | 2022-05-29 | 2023-12-07 | عبدالعزيز البلوشي، | Electrical circuit for controlling a water heater |
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