CN105202764B - The control method of outlet water temperature of water heater - Google Patents
The control method of outlet water temperature of water heater Download PDFInfo
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- CN105202764B CN105202764B CN201410290856.7A CN201410290856A CN105202764B CN 105202764 B CN105202764 B CN 105202764B CN 201410290856 A CN201410290856 A CN 201410290856A CN 105202764 B CN105202764 B CN 105202764B
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Abstract
The invention discloses a kind of control method of outlet water temperature of water heater, the control method of the leaving water temperature comprises the following steps：Current environmental temperature is obtained, and obtains initial opening corresponding to current environmental temperature and its renewal time；When the time interval of the renewal time and current time is more than or equal to prefixed time interval, control water heater is started shooting according to the initial opening, and adjusts the warm water valve opening of the water heater, so that the leaving water temperature of the water heater reaches default temperature；When the leaving water temperature of the water heater keeps preset durations in default temperature, the aperture of current warm water valve is recorded, updates the aperture that initial opening corresponding to current environmental temperature is current warm water valve.The present invention is realized and reasonably, effectively the initial opening of water heater is updated according to the change of environment temperature, and the leaving water temperature of water heater is controlled, and is met expection and the needs of user, is improved experience of the user to water heater.
Description
Technical field
The present invention relates to the control method of field of intelligent control technology, more particularly to outlet water temperature of water heater.
Background technology
Direct-heating-type air-source water heater, because it possesses disposably by the ability of cool water heating to high-temperature water, therefore, it is more and more
User begin to use this immediately heating water heater.However, the change due to outdoor environment temperature so that above-mentioned Instant heating type heat
The starting stage that hydrophone uses in start, the problem of water temperature is too low or too high be present, and then cause the use of immediately heating water heater
Effect is bad.
At present, control of each producer to the direct-heating-type unit water temperature of immediately heating water heater is mostly by controlling warm water valve (one
Kind of water route electric expansion valve) aperture size control the size of water-carrying capacity, and then control the height of leaving water temperature, and be to pass through
The initial opening for solidifying start-up phase warm water valve realizes the control of leaving water temperature.But as the long-time of unit uses and makes
With the change of environment, the ability of unit also can be different therewith.It is each that the initial opening that original state solidification is set can not meet unit
The demand of individual use age, for example, occurring that leaving water temperature can too high boiling hot people when initial opening sets less than normal in actual use
Or cause machine set system high voltage fault；Or when initial opening sets bigger than normal, leaving water temperature can be caused too low.Therefore, it is existing
Can not rationally, effectively leaving water temperature be controlled under some modes.
The above is only used for auxiliary and understands technical scheme, does not represent and recognizes that the above is existing skill
Art.
The content of the invention
It is a primary object of the present invention to reasonably, the effectively initial opening according to the change of environment temperature to water heater
It is updated, and the leaving water temperature of water heater is controlled, meets expection and the needs of user, improve user to water heater
Experience.
To achieve the above object, the control method of a kind of outlet water temperature of water heater provided by the invention, applied to Instant heating type
Water heater, the control method of the leaving water temperature comprise the following steps：
Current environmental temperature is obtained, and obtains initial opening corresponding to current environmental temperature and its renewal time；
When the time interval of the renewal time and current time is more than or equal to prefixed time interval, water heater is controlled
Started shooting according to the initial opening, and adjust the warm water valve opening of the water heater, so that the leaving water temperature of the water heater reaches
To default temperature；
When the leaving water temperature of the water heater keeps preset durations in default temperature, opening for current warm water valve is recorded
Degree, update the aperture that initial opening corresponding to current environmental temperature is current warm water valve.
Preferably, the aperture for recording current warm water valve, initial opening corresponding to renewal current environmental temperature is current
After the step of aperture of warm water valve, in addition to：
Continue to adjust the warm water valve opening of the water heater, the leaving water temperature of the water heater is adjusted to setting temperature
Degree.
Preferably, the acquisition current environmental temperature, and obtain initial opening corresponding to current environmental temperature and its renewal
After the step of time, in addition to：
When the time interval of the renewal time and current time is less than prefixed time interval, control water heater is according to institute
State initial opening start；
The warm water valve opening of the water heater is adjusted, the leaving water temperature of the water heater is adjusted to design temperature.
Preferably, the warm water valve opening of the regulation water heater, by the leaving water temperature of the water heater adjust to
The step of design temperature, includes：
Obtain the temperature difference of the design temperature and the default temperature；
According to the mapping relations of prestore aperture regulation value and temperature difference, aperture regulation corresponding to the temperature difference obtained
Value；
The warm water valve opening of the water heater is adjusted according to obtained aperture regulation value, the water heater is gone out into water temperature
Degree is adjusted to design temperature.
Preferably, the warm water valve opening of the regulation water heater, so that the leaving water temperature of the water heater reaches silent
The step of recognizing temperature includes：
The current leaving water temperature of the water heater is obtained, calculates the temperature of the current leaving water temperature and default temperature
Difference；
According to the mapping relations of prestore aperture regulation value and temperature difference, aperture corresponding to the temperature difference at the calculating is determined
Regulated value；
The warm water valve opening of the water heater is adjusted according to the aperture regulation value of determination, so that the water heater goes out water temperature
Degree reaches default temperature.
Preferably, the warm water valve opening of the regulation water heater, so that the leaving water temperature of the water heater reaches silent
The step of recognizing temperature includes：
Adjust the warm water valve opening of the water heater；
Judge whether the leaving water temperature of the water heater reaches the default temperature；
When the leaving water temperature of the water heater reaches the default temperature, the leaving water temperature of the water heater is controlled silent
Recognize temperature and keep preset durations.
Preferably, after the step of whether leaving water temperature for judging the water heater reaches the default temperature, also
Including：
When the leaving water temperature of the water heater is not up to the default temperature, continue to adjust the warm water valve opening, directly
Leaving water temperature to the water heater reaches the default temperature.
Preferably, the control method of the outlet water temperature of water heater also includes step：
The current water feeding pressure of the water heater is obtained, and is judged described when whether the hydraulic pressure value of advancing water is more than default water
Pressure value；
Described when the hydraulic pressure value of advancing water is less than default hydraulic pressure value, water inlet booster pump is opened in control, so that the heat
The water feeding pressure value of hydrophone is more than the default hydraulic pressure value.
The present invention when the renewal time of initial opening corresponding to current environmental temperature being more than or equal to prefixed time interval,
The warm water valve opening of water heater is adjusted, so that the leaving water temperature of the water heater is adjusted to default temperature, and when described
The aperture of current warm water valve is updated to described current by the leaving water temperature of water heater when default temperature keeps preset durations
The initial opening of environment temperature.Effectively avoid water heater from occurring in actually using when initial opening sets less than normal, go out water temperature
The too high boiling hot people of degree meeting causes machine set system high voltage fault；Or when initial opening sets bigger than normal, leaving water temperature can be caused
Too low technical problem.Realization reasonably, is effectively updated according to the change of environment temperature to the initial opening of water heater,
And the leaving water temperature of water heater is controlled, meet expection and the needs of user, improve experience of the user to water heater.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the first embodiment of the control method of outlet water temperature of water heater of the present invention；
Fig. 2 be outlet water temperature of water heater of the present invention control method in water heater a water circuit system embodiment schematic diagram；
Fig. 3 is the refinement schematic flow sheet of step S20 in Fig. 1；
Fig. 4 is the schematic flow sheet of the second embodiment of the control method of outlet water temperature of water heater of the present invention；
Fig. 5 is the refinement schematic flow sheet of step S40 in Fig. 4.
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The present invention provides a kind of control method of outlet water temperature of water heater.
Reference picture 1, Fig. 1 are the schematic flow sheet of the control method first embodiment of outlet water temperature of water heater.
In one embodiment, the control method of the outlet water temperature of water heater includes：
When step S10, obtaining current environmental temperature, and obtaining initial opening corresponding to current environmental temperature and its renewal
Between；
In the present embodiment, the main body for performing technical solution of the present invention can be water heater, or one connects with water heater
The Water outlet temperature control device connect, or Water outlet temperature control device inside water heater etc., the water heater
For immediately heating water heater.The present embodiment is preferably Water outlet temperature control device.It is outlet water temperature of water heater of the present invention with reference to figure 2
Control method in water heater a water circuit system embodiment schematic diagram.The water circuit system of the water heater includes：Hydraulic pressure is protected
Switch, magnetic valve, warm water valve, check valve, water-side heat, leaving water temperature sensors, water tank temperature sensor, water tank, draining
Valve and booster pump etc..The Water outlet temperature control device is connected with the water circuit system, and the Water outlet temperature control device passes through
The water circuit system is controlled to control the leaving water temperature of water heater.The Water outlet temperature control device prestores each environment temperature
Initial opening corresponding to lower, and the mapping table of environment temperature and warm water valve opening of starting shooting is stored with, the mapping table is such as
Shown in table 1 below, but it is not restricted to the content of table 1.The mapping relations of environment temperature and warm water valve opening in table 1 are：Ring
The mapping relations of border temperature range and warm water valve opening, the ambient temperature range to be divided at interval of 5 degree, it is of the invention its
In his embodiment, in order to more accurately match the warm water valve opening of environment temperature, the ambient temperature range can be with
Divide or divided at interval of 1 degree at interval of 2 degree, herein not list citing description one by one.
Table 1
Whether the Water outlet temperature control device detecting water heater is activated, when detecting user's startup water heater, or
Person can also set a water heater to start the time in advance, when reaching the startup time, water heater automatic start.It is described
Water outlet temperature control device obtains current environmental temperature, and it is corresponding to obtain current environmental temperature when detecting water heater startup
Initial opening and its renewal time.The renewal time is the start aperture of the last warm water valve for adjusting the water heater
Time point.The process of initial opening can be corresponding to the acquisition current environmental temperature：According to environment temperature and prestore initial
The mapping relations of aperture, determine initial opening corresponding to the environment temperature.In other embodiments of the present invention, in order to more
Accurately leaving water temperature is controlled, not influenceed by intake pressure, current environmental temperature is being obtained and is obtaining current environment
While the step of initial opening corresponding to temperature and its renewal time, or before, afterwards.Obtain the current of the water heater
Water feeding pressure, and judge described when whether the hydraulic pressure value of advancing water is more than default hydraulic pressure value；Described when the hydraulic pressure value of advancing water
During less than default hydraulic pressure value, water inlet booster pump is opened in control, so that the water feeding pressure value of the water heater is more than the default water
Pressure value.Judged by influenceing leaving water temperature to the water feeding pressure of the water heater, and exclude water feeding pressure to leaving water temperature
Influence so that the control to the leaving water temperature of water heater is more accurate and effective.
Step S20, when the time interval of the renewal time and current time is more than or equal to prefixed time interval, control
Heat water producer is started shooting according to the initial opening, and adjusts the warm water valve opening of the water heater, so that the water heater goes out
Coolant-temperature gage reaches default temperature；
The Water outlet temperature control device sets a prefixed time interval in advance, and the prefixed time interval can be 2 days
Or it is expected to be set according to the performance of water heater warm water valve and/or user for 3 days etc..The Water outlet temperature control device is obtaining
Current environmental temperature, and the step of obtain initial opening corresponding to current environmental temperature and its renewal time after, described in judgement
Whether the time interval of renewal time and current time is more than or equal to prefixed time interval, the renewal time with it is current when
Between time interval when being more than or equal to prefixed time interval, control water heater is started shooting according to the initial opening, and adjusts institute
The warm water valve opening of water heater is stated, so that the leaving water temperature of the water heater reaches default temperature.
With reference to figure 3, Fig. 3 is the refinement schematic flow sheet of step S20 in Fig. 1.The warm water hair of the regulation water heater
Aperture, so that the leaving water temperature of the water heater includes the step of reaching default temperature：
Step S21, the current leaving water temperature of the water heater is obtained, calculate the current leaving water temperature and default temperature
Temperature difference；
Step S22, according to the mapping relations of prestore aperture regulation value and temperature difference, determine the temperature difference pair at the calculating
The aperture regulation value answered；
Step S23, the warm water valve opening of the water heater is adjusted according to the aperture regulation value of determination, so that the water heater
Leaving water temperature reach default temperature.
The Water outlet temperature control device obtains water heater after control water heater is run according to the initial opening
Current leaving water temperature, and judge whether the current leaving water temperature of water heater reaches default temperature.The default temperature be 45 degree, 50
The users such as degree expection and the acquiescence leaving water temperature needed, the temperature for being as adapted to user to use.In the present embodiment, preferably 45
Degree, under 45 degree, user is preferable to the usage experience of water heater, reaches more preferable using effect, meets the experience of Most users.
The Water outlet temperature control device judges whether the current leaving water temperature of water heater reaches the default temperature and can be：Currently go out
Whether coolant-temperature gage is consistent with the default temperature；Can also be：Whether current leaving water temperature and the difference of the default temperature are small
In preset temperature threshold value (for example, 0.5 degree, 0.8 degree etc.).Current leaving water temperature of the Water outlet temperature control device in water heater
Not up to the default temperature when, calculate the temperature difference of current leaving water temperature and the default temperature, i.e., in the leaving water temperature
With the default temperature it is inconsistent when, or the difference of the current leaving water temperature and the default temperature be more than or equal to it is default
Temperature threshold；The Water outlet temperature control device calculates the temperature difference of the current leaving water temperature and default temperature.
The Water outlet temperature control device prestores the mapping relations of aperture regulation value and temperature difference, for example, reference table 2, is
The mapping table of aperture regulation value and temperature difference is as shown in table 2 below, but is not restricted to the content of table 2.Aperture in table 2
The mapping relations of regulated value and temperature difference are：The mapping relations of temperature difference scope and aperture regulation value.Mapping relations can basis
The performance of actual demand and actual warm water valve is adjusted, and wherein the "+" before warm water valve aperture regulation value and "-" represent temperature respectively
The increase and reduction of bottom valve aperture.
| Temperature difference Tc (degree) | Warm water valve aperture regulation value (step) |
| -1<Tc≤1 | 0 |
| 1<Tc≤3 | +30*0.5 |
| 3<Tc≤10 | +30*2 |
| 10<Tc≤15 | +30*3 |
| 15<Tc≤20 | +30*4 |
| 20<Tc≤25 | +30*5 |
| 25<Tc | +30*10 |
| -3≤Tc<-1 | -30*0.5 |
| -10≤Tc<-3 | -30*2 |
| -15≤Tc<-10 | -30*3 |
| -20≤Tc<-15 | -30*4 |
| -25≤Tc<-20 | -30*5 |
| -25>Tc | -30*10 |
Table 2
The Water outlet temperature control device after the temperature difference of current leaving water temperature and the default temperature is calculated, according to
The mapping relations of the aperture regulation that prestores value and temperature difference, aperture regulation value corresponding to the temperature difference at the calculating is determined, for example,
Reference table 2, if calculate temperature difference be 2 degree, it is determined that aperture regulation value be+30*0.5=15 step, i.e., by warm water valve opening
Increase by 15 steps；If calculate temperature difference for -5 degree, it is determined that aperture regulation value for -30*2=-60 step, i.e., by warm water valve opening
Reduce by 60 steps.The Water outlet temperature control device adjusts the warm water valve of the water heater according to the warm water valve aperture regulation value of determination
Aperture, to control the leaving water temperature of the water heater to reach the default temperature.The current leaving water temperature of water heater is controlled
Into consistent with the default temperature, or by the control of the difference of the current leaving water temperature of water heater and the default temperature default
In temperature threshold.When the leaving water temperature of the water heater reaches the default temperature, the leaving water temperature of the water heater is controlled
Preset durations are kept in the default temperature, the preset durations can be 2 minutes, 5 minutes etc. according to water heater
Performance and user are expected to be set.In invention other embodiment, in order to ensure the water heater going out water temperature as early as possible
Degree regulation to the default temperature, the Water outlet temperature control device sets a time threshold (for example, 1 minute, 2 minutes etc.),
After the warm water valve opening of the water heater is adjusted, and when time threshold reaches, judge the leaving water temperature of the water heater
Whether reach the default temperature, when the leaving water temperature of the water heater is not up to above-mentioned default temperature, continue described in regulation
The aperture of warm water valve, until the leaving water temperature of the water heater reaches the default temperature；In the leaving water temperature of the water heater
When reaching the default temperature, the leaving water temperature of the water heater is controlled to keep preset durations in default temperature.
Step S30, when the leaving water temperature of the water heater keeps preset durations in default temperature, record current temperature
The aperture of water valve, update the aperture that initial opening corresponding to current environmental temperature is current warm water valve.
The Water outlet temperature control device keeps preset durations when the leaving water temperature of the water heater in default temperature
When, the aperture of current warm water valve is recorded, updates the aperture that initial opening corresponding to current environmental temperature is current warm water valve.Specifically
, initial opening corresponding to the Water outlet temperature control device renewal current environmental temperature is the process of the aperture of current warm water valve
Can be：From the environment temperature to prestore with initial opening mapping table, finding out the temperature range where the current environmental temperature,
And the initial opening of temperature range where determining, the aperture of current warm water valve is replaced to the initial opening determined, reaches renewal and works as
Initial opening corresponding to preceding environment temperature is the purpose of the aperture of current warm water valve.
The present embodiment is more than or equal to prefixed time interval in the renewal time of initial opening corresponding to current environmental temperature
When, the warm water valve opening of water heater is adjusted, so that the leaving water temperature of the water heater is adjusted to default temperature, and works as institute
The leaving water temperature of water heater is stated when default temperature keeps preset durations, the aperture of current warm water valve is updated to described work as
The initial opening of preceding environment temperature.Water heater is effectively avoided to occur in actually using when initial opening sets less than normal, water outlet
Temperature too high boiling hot people or can cause machine set system high voltage fault；Or when initial opening sets bigger than normal, water temperature can be caused out
Spend low technical problem.Realize and reasonably, effectively the initial opening of water heater is carried out more according to the change of environment temperature
Newly, and to the leaving water temperature of water heater it is controlled, meets expection and the needs of user, improves body of the user to water heater
Test.
Reference picture 4, Fig. 4 are the schematic flow sheet of the control method second embodiment of outlet water temperature of water heater.Based on above-mentioned
The control method first embodiment of outlet water temperature of water heater, after the step S30, in addition to：
Step S40, continue to adjust the warm water valve opening of the water heater, by the leaving water temperature of the water heater adjust to
Design temperature.
In the present embodiment, the Water outlet temperature control device is recording the aperture of current warm water valve, updates current environment
After initial opening corresponding to temperature is the aperture of current warm water valve, continue to adjust the warm water valve opening of the water heater, will
The leaving water temperature of the water heater is adjusted to design temperature.With reference to figure 5, Fig. 5 is the refinement schematic flow sheet of step S40 in Fig. 4.
The step S40 includes：Step S41, obtain the temperature difference of the design temperature and the default temperature；Step S42, according to pre-
The mapping relations of aperture regulation value and temperature difference are deposited, aperture regulation value corresponding to the temperature difference obtained；Step S43, according to
Obtained aperture regulation value adjusts the warm water valve opening of the water heater, and the leaving water temperature of the water heater is adjusted to setting
Temperature.The design temperature can be 55 degree, 60 degree etc., and the design temperature is according to area, user is different and/or the hot water
The performance of device and be configured, enabling a user to obtain more preferable, more preferably water heater under the design temperature experiences so that right
The regulation of the leaving water temperature of water heater is more flexible.
In other embodiments of the present invention or after step slo, in the renewal time and current time
When time interval is less than prefixed time interval, control water heater is started shooting according to the initial opening；Adjust the temperature of the water heater
Water valve aperture, the leaving water temperature of the water heater is adjusted to design temperature.The Water outlet temperature control device it is described more
When the time interval of new time and current time is less than prefixed time interval, fortune of the water heater in the initial opening is represented
Under row, the default temperature can be reached, it is therefore not necessary to the aperture of warm water valve is adjusted for the default temperature, direct pin
The aperture of the warm water valve is adjusted to the design temperature, the leaving water temperature of the water heater is adjusted to design temperature i.e.
Can.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.Embodiment party more than
The description of formula, it is required general that those skilled in the art can be understood that above-described embodiment method can add by software
The mode of hardware platform is realized, naturally it is also possible to which by hardware, but the former is more preferably embodiment in many cases.It is based on
Such understanding, the part that technical scheme substantially contributes to prior art in other words can be with software products
Form embody, the computer software product is stored in a storage medium (such as flash memory/internal memory, magnetic disc, CD), bag
Some instructions are included to so that a station terminal equipment (can be mobile phone, computer, server, or network equipment etc.) performs sheet
Invent the method described in each embodiment.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (8)
- A kind of 1. control method of outlet water temperature of water heater, applied to immediately heating water heater, it is characterised in that the leaving water temperature Control method comprise the following steps：Current environmental temperature is obtained, and obtains initial opening corresponding to current environmental temperature and its renewal time；When the time interval of the renewal time and current time is more than or equal to prefixed time interval, control water heater according to The initial opening start, and the warm water valve opening of the water heater is adjusted, so that the leaving water temperature of the water heater reaches silent Recognize temperature；When the leaving water temperature of the water heater keeps preset durations in default temperature, the aperture of current warm water valve is recorded, Update the aperture that initial opening corresponding to current environmental temperature is current warm water valve.
- 2. the control method of outlet water temperature of water heater as claimed in claim 1, it is characterised in that described to record current warm water valve Aperture, update current environmental temperature corresponding to initial opening be current warm water valve aperture the step of after, in addition to：Continue to adjust the warm water valve opening of the water heater, the leaving water temperature of the water heater is adjusted to design temperature.
- 3. the control method of outlet water temperature of water heater as claimed in claim 1 or 2, it is characterised in that front ring is worked as in the acquisition Border temperature, and the step of obtain initial opening corresponding to current environmental temperature and its renewal time after, in addition to：When the time interval of the renewal time and current time is less than prefixed time interval, control water heater is according to described first Beginning aperture is started shooting；The warm water valve opening of the water heater is adjusted, the leaving water temperature of the water heater is adjusted to design temperature.
- 4. the control method of outlet water temperature of water heater as claimed in claim 3, it is characterised in that the regulation water heater Warm water valve opening, the leaving water temperature of the water heater, which was adjusted to the step of design temperature, to be included：Obtain the temperature difference of the design temperature and the default temperature；According to the mapping relations of prestore aperture regulation value and temperature difference, aperture regulation value corresponding to the temperature difference obtained；The warm water valve opening of the water heater is adjusted according to obtained aperture regulation value, the leaving water temperature of the water heater is adjusted Save to design temperature.
- 5. the control method of outlet water temperature of water heater as claimed in claim 1 or 2, it is characterised in that the regulation heat The warm water valve opening of hydrophone, so that the leaving water temperature of the water heater includes the step of reaching default temperature：The current leaving water temperature of the water heater is obtained, calculates the temperature difference of the current leaving water temperature and default temperature；According to the mapping relations of prestore aperture regulation value and temperature difference, it is determined that aperture corresponding to the temperature difference calculated is adjusted Section value；The warm water valve opening of the water heater is adjusted according to the aperture regulation value of determination, so that the leaving water temperature of the water heater reaches To default temperature.
- 6. the control method of outlet water temperature of water heater as claimed in claim 5, it is characterised in that the regulation water heater Warm water valve opening so that the leaving water temperature of the water heater includes the step of reaching default temperature：Adjust the warm water valve opening of the water heater；Judge whether the leaving water temperature of the water heater reaches the default temperature；When the leaving water temperature of the water heater reaches the default temperature, the leaving water temperature of the water heater is controlled in acquiescence temperature Degree keeps preset durations.
- 7. the control method of outlet water temperature of water heater as claimed in claim 6, it is characterised in that described to judge the water heater Leaving water temperature the step of whether reaching the default temperature after, in addition to：When the leaving water temperature of the water heater is not up to the default temperature, continue to adjust the warm water valve opening, until institute The leaving water temperature for stating water heater reaches the default temperature.
- 8. the control method of outlet water temperature of water heater as claimed in claim 1, it is characterised in that the outlet water temperature of water heater Control method also include step：The current water feeding pressure of the water heater is obtained, and is judged described when whether the hydraulic pressure value of advancing water is more than default hydraulic pressure Value；Described when the hydraulic pressure value of advancing water is less than default hydraulic pressure value, water inlet booster pump is opened in control, so that the water heater Water feeding pressure value be more than the default hydraulic pressure value.
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| CN110260526A (en) * | 2019-07-03 | 2019-09-20 | 珠海格力电器股份有限公司 | A kind of water heater control method, control system, water heater |
| CN111099525A (en) * | 2019-12-25 | 2020-05-05 | 苏州罗伯特木牛流马物流技术有限公司 | Double portal AGV |
| CN111473524A (en) * | 2020-05-12 | 2020-07-31 | 万世谦成(天津)文化科技有限公司 | Self-suction water heater control method and control system |
| CN112146287B (en) * | 2020-09-27 | 2021-09-14 | 广东万家乐燃气具有限公司 | Water heater, thermostatic valve control method thereof and thermostatic valve device |
| CN112268372A (en) * | 2020-10-23 | 2021-01-26 | 珠海格力电器股份有限公司 | Pressurization control method of water heater and water heater |
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| CN1319750A (en) * | 2000-01-31 | 2001-10-31 | 袁昌平 | Direct heating type gas water-heater constnat temp. system |
| CN203605459U (en) * | 2013-10-16 | 2014-05-21 | 广东芬尼克兹节能设备有限公司 | Directly-heated type water heater |
| CN103727677A (en) * | 2014-01-02 | 2014-04-16 | 福州斯狄渢电热水器有限公司 | Instant heating type water heater constant temperature control system and method |
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