CN108507171A - Heat-pump water heater control method and device - Google Patents
Heat-pump water heater control method and device Download PDFInfo
- Publication number
- CN108507171A CN108507171A CN201810215303.3A CN201810215303A CN108507171A CN 108507171 A CN108507171 A CN 108507171A CN 201810215303 A CN201810215303 A CN 201810215303A CN 108507171 A CN108507171 A CN 108507171A
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- Prior art keywords
- water heater
- water
- temperature
- setting value
- stopped
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Classifications
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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
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—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
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
Abstract
The invention discloses a kind of heat-pump water heater control method and device, to solve in the related technology, in high environment temperature, due to heat pump hot-water system startup high temp/high pressure safeguard measure, the problem of leading to heat pump hot-water system frequent start-stop.Disclosed heat-pump water heater control method includes：In the case where water heater is stopped due to startup high temp/high pressure safeguard measure, after water heater is again started up, if environment temperature is higher than preset temperature, the first water temperature setting value of water heater is reduced, the second water temperature setting value is obtained；Water heater working is controlled by target water temperature of the second water temperature setting value.The disclosure improves the stability of heat pump hot-water system.
Description
Technical field
The present invention relates to technical field of heat pumps, in particular to a kind of heat-pump water heater control method and device.
Background technology
As the improvement of people's living standards, advocating " hot water civilization " life, environmental protection, health, safety, a large amount of heat are provided
Water has become a kind of trend.Meanwhile with the improvement of house condition, high residential building, large area house are more and more, to water heater
Install, sustainable a large amount of water supply are realized etc., and requirements are also higher and higher.And the change of living condition, the consumption consciousness and residential environment
The objective factor that exactly water heater develops to intelligent, energy saving and environmentally friendly direction.
Air source hot pump water heater recycles low-temperature waste heat with it, and the inherent superiority such as energy saving opens hot water
The new markets of device.And with the aggravation of " energy crisis ", air source heat pump after improvement, more receives the blueness of people in product
It looks at.But Teat pump boiler is higher in environment temperature and inflow temperature, it may appear that the case where high load capacity, high water temperature,
And since the compressor output frequency of heat pump hot-water system is certain, cause its cannot automatic frequency reducing, this will easily cause water heater
High pressure/high temperature safeguard measure, shut down so as to cause water heater, and can also be since there are same problems after water heater is activated
And the problem of shutting down, being used to influence user, even result in customer complaint.
Invention content
The present invention provides a kind of heat-pump water heater control method and devices, at least to solve Heat Pump in the related technology
Hydrophone is the repeatedly starting and stopping after starting protection measure is stopped the problem of.
According to an aspect of the invention, there is provided a kind of heat-pump water heater control method, including：The water heater by
In the case that startup high temp/high pressure safeguard measure is stopped, after the water heater is again started up, if environment temperature
Degree is higher than preset temperature, then reduces the first water temperature setting value of the water heater, obtain the second water temperature setting value；With described second
Water temperature setting value is that target water temperature controls the water heater working.
Optionally, the heat-pump water heater control method further includes：Before the water heater is stopped, in the heat
In the case that the continuous operating time of hydrophone reaches default length, the environment temperature is obtained；In the environment temperature higher than described
In the case of preset temperature, the pressure at expulsion and/or delivery temperature of the water heater are detected, controlled according to testing result
The water heater working continue working is stopped.
Optionally, the pressure at expulsion and/or delivery temperature to the water heater is detected, and is controlled according to testing result
It makes the water heater working continue working or is stopped, including：Obtain the heat pump in the water heater pressure at expulsion and
Delivery temperature；It is more than preset pressure value in the pressure at expulsion and/or the delivery temperature is more than the feelings of default outlet air temperature
Under condition, controls the water heater and be stopped.
Optionally, the heat-pump water heater control method further includes：In the first water temperature setting value for reducing the water heater
Later, it records the water heater and executes the number for reducing water temperature setting value；When the number is not less than preset times, institute is controlled
Water heater is stated to be stopped.
Optionally, the heat-pump water heater control method further includes：In the first water temperature setting value for reducing the water heater
Later, judge whether the second water temperature setting value is less than default water temperature；It is less than in the second water temperature setting value described default
In the case of water temperature, controls the water heater and be stopped.
According to another aspect of the present invention, a kind of heat pump water heater control device is provided, including：First control mould
Block, in the water heater due to starting high temp/high pressure safeguard measure and in the case of be stopped, in the water heater quilt
After being again started up, if environment temperature is higher than preset temperature, the first water temperature setting value of the water heater is reduced, obtains second
Water temperature setting value；Second control module, for controlling the water heater working by target water temperature of the second water temperature setting value.
Optionally, the heat pump water heater control device further includes：Acquisition module, for being stopped in the water heater
Before, in the case where the continuous operating time of the water heater reaches default length, the environment temperature is obtained；Third controls mould
Block is used in the case where the environment temperature is higher than the preset temperature, the pressure at expulsion to the water heater and/or exhaust
Temperature is detected, and is controlled the water heater working continue working according to testing result or is stopped.
Optionally, the third control module, including：Acquiring unit, the row for obtaining the heat pump in the water heater
Atmospheric pressure and delivery temperature；Control unit, for being more than preset pressure value and/or the delivery temperature in the pressure at expulsion
In the case of more than default outlet air temperature, controls the water heater and be stopped.
Optionally, the heat pump water heater control device further includes：Logging modle, for reducing the of the water heater
After one water temperature setting value, records the water heater and execute the number for reducing water temperature setting value；4th control module, in institute
When stating number not less than preset times, controls the water heater and be stopped.
Optionally, the heat pump water heater control device further includes：Judgment module, for reducing the of the water heater
After one water temperature setting value, judge whether the second water temperature setting value is less than default water temperature；5th control module, in institute
The second water temperature setting value is stated less than in the case of the default water temperature, the water heater is controlled and is stopped.
Scheme provided by the embodiments of the present application is causing high pressure, exhaust or overload in water heater because inflow temperature is excessively high
After protection, control water heater reduce water temperature setting value so that system energy adjust automatically water temperature, allow unit can normal operation, carry
The high stability of system.
Description of the drawings
Fig. 1 is a kind of flow chart of heat-pump water heater control method of the embodiment of the present application；
Fig. 2 is the flow chart of another heat-pump water heater control method of the embodiment of the present application；
Fig. 3 is the block diagram of the heat pump water heater control device of the embodiment of the present application.
Specific implementation mode
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent and the consistent all embodiments of the present invention.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects being described in detail in claims, of the invention.
Embodiments herein provides a kind of heat-pump water heater control method, and Fig. 1 is the flow chart of this method, such as Fig. 1
Shown, this method comprises the following steps：
Step 101：In the case where water heater is stopped due to startup high temp/high pressure safeguard measure, in water heater
After being again started up, if environment temperature is higher than preset temperature, the first water temperature setting value of water heater is reduced, the second water is obtained
Warm setting value；
Wherein, the first water temperature setting value is user's setting value, can be specifically control plane of the user by operation water heater
The target water temperature of the remote controler of plate or water heater setting.
The water temperature setting value for reducing water heater can be specifically to reduce pre-set level on the basis of current water temperature setting value,
For example, current water temperature setting value is 40 DEG C, pre-set level is 2 DEG C, then after reducing the first water temperature setting value with pre-set level,
The second obtained water temperature setting value is 38 DEG C.
Step 102：Water heater working is controlled by target water temperature of the second water temperature setting value.
In one embodiment, heat-pump water heater control method further includes：Before water heater is stopped, in water heater
Continuous operating time reach default length in the case of, obtain environment temperature；Wherein, it can be specifically the compression in water heater
In the case that the continuous operating time of machine reaches preset duration, the environment temperature around water heater is obtained.
In the case where the environment temperature got is higher than preset temperature, the pressure at expulsion to water heater and/or exhaust temperature
Degree is detected, and controls water heater working according to testing result, wherein control water heater working may include controlling water heater just
Often work, or control water heater are stopped.
Wherein, the pressure at expulsion of water heater and/or delivery temperature are detected, control water heater work according to testing result
The operation continue working of work or the operation being stopped may include：
Obtain the pressure at expulsion and delivery temperature of the heat pump in water heater；
In the case where pressure at expulsion is more than preset pressure value and/or delivery temperature is more than default outlet air temperature, control
Water heater is stopped.Wherein, it can be specifically control water heater shutdown that control water heater, which is stopped,.
In one embodiment, heat-pump water heater control method further includes：In the first water temperature setting value for reducing water heater
Later, record water heater executes the number for reducing water temperature setting value；When the number is not less than preset times, control water heater stops
Only work.Wherein, number herein can be specifically the number recorded in a designated time period, such as within one day or 24 is small
When within, after more than the specified time, the number of record is cleared.Being executed in water heater reduces the number of water temperature setting value
When not less than preset times, the reason of illustrating to cause water heater starting protection measure to shut down, is not that environment temperature is excessively high, but
Due to other reasons, therefore control water heater is stopped and can play protection to water heater to a certain extent in that case
Effect prompts user's heat alternatively, after the number that can also execute reduction water temperature setting value in water heater is not less than preset times
There is currently failures for hydrophone.
In one embodiment, heat-pump water heater control method further includes：In the first water temperature setting value for reducing water heater
Later, judge whether the second water temperature setting value is less than default water temperature；The default water temperature for example can be it is set by user it is minimum can
Can also be a temperature value of system default using water temperature.In the case where the second water temperature setting value is less than default water temperature, control
Water heater is stopped.
A kind of achievable mode of the heat pump hot-water system control method of the application is illustrated below in conjunction with attached drawing 2,
In this example embodiment, heat pump hot-water system control method includes the following steps：
After water heater unit is switched on compressor continuous operation for a period of time after, judge whether to meet compressor continuous operation
Time TFortune≥a1；
When the continuous operating time of unit meets TFortune>=a1 then judges environment temperature TRingWhether T is metRing>=t2≤t4, i.e.,
Whether environment temperature is within the scope of a default temperature；
Work as TRingMeet TRing>=t2≤t4 then judges pressure at expulsion BHigh pressureWhether B is metHigh pressure>=b1 or delivery temperature TRowIt is whether full
Sufficient TRow>=t2, wherein BHigh pressureIndicate that the pressure at expulsion of water heater, b1 indicate to preset pressure at expulsion, TRowIndicate the exhaust temperature of water heater
Degree, t2 indicate to preset delivery temperature；
Work as BHigh pressureMeet BHigh pressure>=b1 or TRow>=t2, water heater complete machine is shut down, and after water heater is again started up, executes precipitation temperature
Control reduces the water temperature setting value of water heater.
When conditions above is unsatisfactory for or only meets one of them, water heater unit does not execute precipitation temperature control system, continues
Normal operation.
As the water temperature setting value T of water heaterIf≤ t3 or ZIt holds>=z1, water heater unit no longer execute precipitation temperature control system, complete machine
It shuts down and shows corresponding failure code, wherein TIfIndicate that water temperature setting value, t3 indicate to preset water temperature, ZIt holdsIndicate that water heater is held
Row drop coolant controlled number, z1 indicate preset times.
The heat-pump water heater control method of the embodiment of the present application can solve water heater unit under high load capacity environment, because of water inlet
The problem of desired temperature is excessively high, and frequent starting safeguard measure causes water heater is locked can not use.So that water heater because into
Coolant-temperature gage is excessively high and after causing high pressure, exhaust or overload protection, system energy adjust automatically water temperature, allow unit can normal operation,
Improve the stability of system.
The embodiment of the present application also provides a kind of heat pump water heater control device, Fig. 3 is the block diagram of the device, such as Fig. 3 institutes
Show, which includes following component part：
First control module 31, for the case where water heater is stopped due to startup high temp/high pressure safeguard measure
Under, after water heater is again started up, if environment temperature is higher than preset temperature, reduce the first water temperature setting of water heater
Value, obtains the second water temperature setting value；
Second control module 32, for controlling water heater working by target water temperature of the second water temperature setting value.
In one embodiment, the heat pump water heater control device of the application further includes：Acquisition module, in water heater
Before being stopped, in the case where the continuous operating time of water heater reaches default length, environment temperature is obtained；
Third control module, in the case where environment temperature is higher than preset temperature, to the pressure at expulsion of water heater and/
Or delivery temperature is detected, and is controlled water heater working according to testing result or is stopped.
In one embodiment, above-mentioned third control module may include：Acquiring unit, for obtaining the heat in water heater
The pressure at expulsion and delivery temperature of pump；Control unit, for big more than preset pressure value and/or delivery temperature in pressure at expulsion
In the case of default outlet air temperature, control water heater is stopped.
In one embodiment, heat pump water heater control device further includes：Logging modle, for reducing the of water heater
After one water temperature setting value, record water heater executes the number for reducing water temperature setting value；4th control module, in record
After number is not less than preset times, control water heater is stopped.
In one embodiment, the heat pump water heater control device of the application can also include：Judgment module, for dropping
After first water temperature setting value of low-heat hydrophone, judge whether the second water temperature setting value is less than default water temperature；5th control module,
For in the case where the second water temperature setting value is less than default water temperature, control water heater to be stopped.
The heat pump water heater control device of the embodiment of the present application can solve water heater unit under high load capacity environment, because of water inlet
The problem of desired temperature is excessively high, and frequent starting safeguard measure causes water heater is locked can not use.So that water heater because into
Coolant-temperature gage is excessively high and after causing high pressure, exhaust or overload protection, system energy adjust automatically water temperature, allow unit can normal operation,
Improve the stability of system.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to its of the present invention
Its embodiment.This application is intended to cover the present invention any variations, uses, or adaptations, these modifications, purposes or
Person's adaptive change follows the general principle of the present invention and includes the common knowledge in the art that the present invention does not invent
Or conventional techniques.The description and examples are only to be considered as illustrative, and true scope and spirit of the invention are by following
Claim is pointed out.
It should be understood that the invention is not limited in the precision architectures for being described above and being shown in the accompanying drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present invention is limited only by the attached claims.
Claims (10)
1. a kind of heat-pump water heater control method, which is characterized in that including：
In the case where the water heater is stopped due to startup high temp/high pressure safeguard measure, in the water heater by again
After secondary startup, if environment temperature is higher than preset temperature, the first water temperature setting value of the water heater is reduced, the second water is obtained
Warm setting value；
The water heater working is controlled by target water temperature of the second water temperature setting value.
2. according to the method described in claim 1, it is characterized in that, the method further includes：
Before the water heater is stopped, in the case where the continuous operating time of the water heater reaches default length, obtain
Take the environment temperature；
In the case where the environment temperature is higher than the preset temperature, the pressure at expulsion to the water heater and/or exhaust temperature
Degree is detected, and is controlled the water heater working continue working according to testing result or is stopped.
3. according to the method described in claim 2, it is characterized in that, the pressure at expulsion and/or exhaust to the water heater
Temperature is detected, and is controlled the water heater working continue working according to testing result or is stopped, including：
Obtain the pressure at expulsion and delivery temperature of the heat pump in the water heater；
In the case where the pressure at expulsion is more than preset pressure value and/or the delivery temperature is more than default outlet air temperature,
The water heater is controlled to be stopped.
4. according to the method described in claim 1, it is characterized in that, the method further includes：
After the first water temperature setting value for reducing the water heater, records the water heater and execute time for reducing water temperature setting value
Number；
When the number is not less than preset times, controls the water heater and be stopped.
5. method according to any one of claims 1 to 4, which is characterized in that the method further includes：
After the first water temperature setting value for reducing the water heater, judge whether the second water temperature setting value is less than default water
Temperature；
In the case where the second water temperature setting value is less than the default water temperature, controls the water heater and be stopped.
6. a kind of heat pump water heater control device, which is characterized in that including：
First control module, in the water heater due to starting high temp/high pressure safeguard measure and in the case of be stopped,
After the water heater is again started up, if environment temperature is higher than preset temperature, the first water temperature of the water heater is reduced
Setting value obtains the second water temperature setting value；
Second control module, for controlling the water heater working by target water temperature of the second water temperature setting value.
7. device according to claim 6, which is characterized in that described device further includes：
Acquisition module, for before the water heater is stopped, reaching default in the continuous operating time of the water heater
In the case of length, the environment temperature is obtained；
Third control module is used in the case where the environment temperature is higher than the preset temperature, to the row of the water heater
Atmospheric pressure and/or delivery temperature are detected, and are controlled the water heater working continue working according to testing result or are stopped.
8. device according to claim 7, which is characterized in that the third control module, including：
Acquiring unit, pressure at expulsion and delivery temperature for obtaining the heat pump in the water heater；
Control unit, for being more than preset pressure value and/or the delivery temperature more than default exhaust temperature in the pressure at expulsion
In the case of angle value, controls the water heater and be stopped.
9. device according to claim 6, which is characterized in that described device further includes：
Logging modle, for after the first water temperature setting value for reducing the water heater, recording the water heater and executing reduction
The number of water temperature setting value；
4th control module, for when the number is not less than preset times, controlling the water heater and being stopped.
10. according to the device described in claim 6 to 9 any one, which is characterized in that described device further includes：
Judgment module, for after the first water temperature setting value for reducing the water heater, judging the second water temperature setting value
Whether default water temperature is less than；
5th control module, in the case where the second water temperature setting value is less than the default water temperature, controlling the heat
Hydrophone is stopped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810215303.3A CN108507171B (en) | 2018-03-15 | 2018-03-15 | Control method and device for heat pump water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810215303.3A CN108507171B (en) | 2018-03-15 | 2018-03-15 | Control method and device for heat pump water heater |
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| Publication Number | Publication Date |
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| CN108507171A true CN108507171A (en) | 2018-09-07 |
| CN108507171B CN108507171B (en) | 2020-09-04 |
Family
ID=63376584
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|---|---|---|---|
| CN201810215303.3A Active CN108507171B (en) | 2018-03-15 | 2018-03-15 | Control method and device for heat pump water heater |
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Cited By (5)
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| CN111238049A (en) * | 2020-01-14 | 2020-06-05 | 珠海格力电器股份有限公司 | Water heater and control method, device, equipment, storage medium and processor thereof |
| CN111290886A (en) * | 2020-03-11 | 2020-06-16 | 珠海格力电器股份有限公司 | Method for automatically recovering operation of equipment and water heater |
| CN111735211A (en) * | 2020-07-01 | 2020-10-02 | 马鞍山市日普新实业有限公司 | Control method and system of temperature controller |
| CN112503777A (en) * | 2020-12-01 | 2021-03-16 | 广东积微科技有限公司 | Control method for water temperature of water heater |
| CN114963523A (en) * | 2021-09-24 | 2022-08-30 | 青岛经济技术开发区海尔热水器有限公司 | Control mode of heat pump water heater |
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| Publication number | Publication date |
|---|---|
| CN108507171B (en) | 2020-09-04 |
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