CN110398054B - Self-adaptive temperature-control zero-cooling water gas water heater and control method thereof - Google Patents

Self-adaptive temperature-control zero-cooling water gas water heater and control method thereof Download PDF

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Publication number
CN110398054B
CN110398054B CN201910694787.9A CN201910694787A CN110398054B CN 110398054 B CN110398054 B CN 110398054B CN 201910694787 A CN201910694787 A CN 201910694787A CN 110398054 B CN110398054 B CN 110398054B
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temperature
water
preheating
environment
controller
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CN110398054A (en
Inventor
郭灵华
李志敏
谢志辉
邓飞忠
仇明贵
潘叶江
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Vatti Co Ltd
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Vatti Co Ltd
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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
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
    • F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
    • F24H1/145—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form using fluid fuel
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers

Abstract

The invention discloses a self-adaptive temperature-control zero-cold water gas water heater, which comprises a zero-cold water gas water heater body, a built-in water pump, a water outlet temperature detection module, a water inlet temperature detection module, a gas control valve, an operation display module and an environment temperature detection module, wherein the built-in water pump, the water outlet temperature detection module, the water inlet temperature detection module, the gas control valve, the operation display module and the environment temperature detection module are all electrically connected with a controller; the invention also discloses a control method of the water heater, which starts a preheating mode; detecting a preset temperature T Presetting Temperature T of water inlet Inflow of water Mounting ambient temperature T Environment (environment) The method comprises the steps of carrying out a first treatment on the surface of the Judging the preset temperature T Presetting Whether or not it satisfies: t (T) Presetting ＞T Preheating max The method comprises the steps of carrying out a first treatment on the surface of the If not, according to the preset temperature T Presetting Controlling the water storage temperature of the circulating pipeline; if yes, according to T Inflow of water Or T Environment (environment) Automatically T will Presetting Adjust to the target preheating temperature T Target object Then according to the target preheating temperature T Target object And controlling the water storage temperature of the circulating pipeline. The self-adaptive temperature-control zero-cooling water gas water heater and the control method thereof can solve the problem that the water temperature in the existing circulating pipeline is too high.

Description

Self-adaptive temperature-control zero-cooling water gas water heater and control method thereof
Technical Field
The invention belongs to the technical field of zero-cooling water gas water heaters, and particularly relates to a self-adaptive temperature control zero-cooling water gas water heater and a control method thereof.
Background
At present, the zero cold water gas water heater has become a trend in water heater industry because the zero cold water gas water heater can realize that hot water is ready to use, when the preheating function is started, a built-in circulating pump arranged in the zero cold water gas water heater operates to pump water stored in an external hot water outlet pipe and a water return pipe of the zero cold water gas water heater back to the zero cold water gas water heater for preheating, so that a preheating circulating pipeline is formed, and preheating is realized.
In the preheating process, the zero-cooling water gas water heater adjusts firepower according to the deviation between the water outlet temperature and the preset temperature, so that the water outlet temperature reaches the preset temperature. The preset temperature setting range of the gas water heater is generally 35-60 ℃. When the preset temperature of the zero cold water gas water heater is too high (such as 60 ℃), after the zero cold water gas water heater starts a preheating function, the zero cold water gas water heater controls the water temperature according to the preset temperature, after the preheating is finished, the stored water temperature in the circulating pipeline is close to 60 ℃, and if a user opens a hot water tap to use hot water at the moment, the risk of scalding exists.
Disclosure of Invention
In order to solve the problem that the temperature of the stored water in the circulating pipeline of the existing zero-cold water gas water heater is too high, the self-adaptive temperature-control zero-cold water gas water heater is provided.
The invention further aims to provide a control method of the self-adaptive temperature-control zero-cooling water gas water heater.
The invention provides a self-adaptive temperature control zero cold water gas water heater, which comprises a zero cold water gas water heater body, a built-in water pump, a water outlet temperature detection module, a water inlet temperature detection module, a gas control valve, an operation display module, an environment temperature detection module and a controller, wherein the water inlet temperature detection module is connected with the water inlet temperature detection module;
the built-in water pump is arranged on a water flow channel in the zero-cold water gas water heater body, the water outlet temperature detection module for detecting water outlet temperature is arranged at the water outlet end in the zero-cold water gas water heater body, the water inlet temperature detection module for detecting backwater temperature is arranged at the water inlet end in the zero-cold water gas water heater body, the gas control valve for controlling the on-off of gas and the gas flow is arranged on an air inlet pipeline in the zero-cold water gas water heater body, the operation display module for setting temperature, starting a preheating mode, recording preheating heat preservation time and displaying preset temperature is arranged on the outer side wall of the zero-cold water gas water heater body, and the environment temperature detection module for detecting the installation environment temperature of the zero-cold water gas water heater body is arranged on the shell of the zero-cold water gas water heater body; the environment temperature detection module, the operation display module, the built-in water pump, the water outlet temperature detection module, the water inlet temperature detection module and the gas control valve are electrically connected with the controller.
Preferably, the operation display module comprises a temperature setting key for setting the temperature, a preheating function key for starting a preheating mode of the zero cold water gas water heater, and a display screen for displaying the preset temperature;
the temperature setting key, the preheating function key and the display screen are electrically connected with the controller.
Preferably, the temperature setting key includes a temperature increasing key and a temperature decreasing key.
Preferably, the water outlet temperature detection module is a water outlet temperature detection probe; the water inlet temperature detection module is a water inlet temperature detection probe; the ambient temperature detection module is an ambient temperature detection probe.
The invention also provides a control method of the self-adaptive temperature-control zero cold water gas water heater, which comprises the following steps:
starting a preheating mode of the zero cold water gas water heater body;
detecting preset temperature T of zero cold water gas water heater body Presetting Temperature T of water inlet Inflow of water Mounting ambient temperature T Environment (environment) ；
Judging the preset temperature T Presetting Whether or not it satisfies: t (T) Presetting ＞T Preheating max Wherein T is Preheating max A maximum preheat temperature that is a preheat temperature threshold range;
if not, the controller is controlled according to the preset temperature T Presetting Controlling the water storage temperature of the circulating pipeline;
if yes, controlThe controller is based on the water inlet temperature T Inflow of water Or the installation environment temperature T Environment (environment) Automatically preset the temperature T Presetting Adjust to the target preheating temperature T Target object Then according to the target preheating temperature T Target object Controlling the water storage temperature of the circulating pipeline and the target preheating temperature T Target object Is any temperature value within the preheating temperature threshold range.
Preferably, the preset temperature T is adjusted Presetting The step of setting the range of (2) includes:
under the preheating mode of the zero cold water gas water heater body, the water inlet temperature T is detected Inflow of water ；
The controller judges the water inlet temperature T Inflow of water Whether or not it is satisfied; t (T) Inflow of water ＞T Target object ；
If not, the controller controls the zero cold water gas water heater body to continuously maintain the preheating mode, and the temperature T is preset Presetting Maintaining a preheating temperature threshold range;
if yes, the controller controls the zero cold water gas water heater body to exit the preheating mode, and the temperature T is preset Presetting The set range of the temperature control device is recovered from the preheating temperature threshold range to the preset temperature threshold range, and is switched to the preheating heat preservation mode or the common mode.
Preferably, the controller is responsive to temperature T Inflow of water Automatically preset the temperature T Presetting Adjust to the target preheating temperature T Target object The method comprises the following steps:
the controller judges the water inlet temperature T Inflow of water Whether or not it satisfies: t (T) Inflow of water ≥T Max of water inflow 、T Inflow of water ≤T Inflow min Or T Inflow min ＜T Inflow of water ＜T Max of water inflow Wherein T is Max of water inflow The maximum water inlet temperature in the water inlet temperature threshold range; t (T) Inflow min Is the minimum inlet water temperature within the inlet water temperature threshold range;
if the controller judges the water inlet temperature T Inflow of water The method meets the following conditions: t (T) Inflow of water ≥T Max of water inflow The controller automatically preheats the target temperature T Target object To a minimum preheating temperature T equal to the preheating temperature threshold range Preheating for min ；
If the controller judges the water inlet temperature T Inflow of water The method meets the following conditions: t (T) Inflow of water ≤T Inflow min The controller automatically preheats the target temperature T Target object To a maximum preheating temperature T equal to the preheating temperature threshold range Preheating max ；
If the controller judges the water inlet temperature T Inflow of water The method meets the following conditions: t (T) Inflow min ＜T Inflow of water ＜T Max of water inflow The controller controls the target preheating temperature T Target object According to T Target object ＝(T Preheating max -T Preheating for min )×(T Max of water inflow -T Inflow of water )/(T Max of water inflow -T Inflow min )+T Preheating for min And (5) calculating to obtain the product.
Preferably, the controller is responsive to the mounting ambient temperature T Environment (environment) Automatically preset the temperature T Presetting Adjust to the target preheating temperature T Target object The method comprises the following steps:
the controller judges the installation environment temperature T Environment (environment) Whether or not it satisfies: t (T) Environment (environment) ≥T Environment max 、T Environment (environment) ≤T Environment min Or T Environment min ＜T Environment (environment) ＜T Environment max Wherein T is Environment max Maximum ambient temperature within a mounting ambient temperature threshold range; the T is Environment min A minimum ambient temperature within a mounting ambient temperature threshold range;
if the controller judges the installation environment temperature T Environment (environment) The method meets the following conditions: t (T) Environment (environment) ≥T Environment max The controller automatically preheats the target temperature T Target object Decrease to a minimum preheat temperature T equal to the preheat temperature threshold range Preheating for min ；
If the controller judges the installation environment temperature T Environment (environment) The method meets the following conditions: t (T) Environment (environment) ≤T Environment min The controller automatically preheats the target temperature T Target object To a maximum preheating temperature T equal to the preheating temperature threshold range Preheating max ；
If the controller judges the installation environment temperature T Environment (environment) The method meets the following conditions: t (T) Environment min ＜T Environment (environment) ＜T Environment max The controller controls the target preheating temperature T Target object According to T Target object ＝(T Preheating max -T Preheating for min )×(T Environment max -T Environment (environment) )/(T Environment max -T Environment min )+T Preheating for min And (5) calculating to obtain the product.
Preferably, after the controller controls the zero cold water gas water heater body to be switched into the preheating heat preservation mode, the water inlet temperature T is detected Inflow of water Recording accumulated preheating and heat preserving time t;
the controller judges the water inlet temperature T Inflow of water Whether or not less than the program holding temperature:
If yes, the controller controls the zero cold water gas water heater body to exit the preheating heat preservation mode and switch to the preheating mode;
if not, the controller judges whether the preheating heat preservation time t exceeds the program heat preservation time:
if yes, the controller controls the zero cold water gas water heater body to exit the preheating heat preservation mode and switch to the common mode;
if not, the controller controls the zero cold water gas water heater body to maintain the preheating and heat preserving mode.
Preferably, the step of starting the preheating mode of the zero cold water gas water heater body comprises:
the method comprises the steps that a preheating mode of a zero cold water gas water heater body is started through an operation display module, and information of the zero cold water gas water heater body for starting the preheating mode is sent to a controller;
after the controller receives the information of starting the preheating mode of the zero cold water gas water heater body sent by the operation display module, the controller controls the built-in water pump to start and controls the gas control valve to be opened, and then the zero cold water gas water heater body enters the preheating mode.
Compared with the prior art, the self-adaptive temperature-control zero cold water gas water heater has the beneficial effects that the scheme is adopted:
when the built-in water pump is started, a water flow passage in the body of the zero cold water gas water heater and a water return pipe outside the body of the zero cold water gas water heater form a circulation pipeline, a water inlet temperature detection module can detect the water return temperature and the water inlet temperature of the water inlet end of the body of the zero cold water gas water heater in real time, a water outlet temperature detection module can detect the water outlet temperature of the water outlet end of the body of the zero cold water gas water heater in real time, an operation display module is used for setting the temperature, starting a preheating mode, recording the preheating time and displaying the preset temperature, namely, the preset temperature of the body of the zero cold water gas water heater is set through the operation display module, the operation display module is used for determining when the body of the zero cold water gas water heater enters the preheating mode, and meanwhile, after the body of the zero cold water gas water heater enters the preheating heat preservation mode, the preheating heat preservation time of the preheating heat preservation mode is automatically recorded; the environment temperature detection module is used for detecting the installation environment temperature of the zero cold water gas water heater body, and the gas control valve is used for controlling the on-off state and the gas flow of the gas;
Because ambient temperature detection module, operation display module, built-in water pump, go out water temperature detection module, advance water temperature detection module, gas control valve and all be connected with the controller electricity, so when the user sets for the temperature of predetermineeing through operation display module, and start the preheating mode of zero cold water gas water heater body, corresponding information is received to the controller, the built-in water pump operation of controller then control, the gas control valve is opened, wherein built-in water pump operation can make the water storage in the circulation line begin to circulate, the gas control valve is opened and can make the gas get into the zero cold water gas water heater body and ignite the water to circulate in the circulation line, realize preheating.
At the same time, the controller controls the temperature T of the installation environment according to the water inlet temperature, the water outlet temperature and the installation environment temperature Environment (environment) With a target preheating temperature T Target object The relation between the water temperature and the water temperature of the circulating pipeline is adaptively adjusted by controlling the flow opening of the gas control valve, adjusting the combustion firepower and controlling the water outlet temperature, thereby solving the problem that the water temperature of the circulating pipeline of the existing zero-cold water gas water heater is too high.
Compared with the prior art, the control method of the self-adaptive temperature-control zero cold water gas water heater has the beneficial effects that the technical scheme is adopted:
Starting zero cold water gas water heater bodyIn the preheating mode, detecting the preset temperature T of the zero cold water gas water heater body Presetting Temperature T of water inlet Inflow of water Mounting ambient temperature T Environment (environment) The method comprises the steps of carrying out a first treatment on the surface of the Judging the preset temperature T Presetting Whether or not it satisfies: t (T) Presetting ＞T Preheating max If not, according to the preset temperature T Presetting Controlling the water storage temperature of the circulating pipeline; if yes, the controller is controlled according to the water inlet temperature T Inflow of water Or the installation environment temperature T Environment (environment) Automatically preset the temperature T Presetting Adjust to the target preheating temperature T Target object Then according to the target preheating temperature T Target object Controlling the water storage temperature of the circulating pipeline;
the invention firstly passes through T Presetting And T is Preheating max The problem of too high preheating temperature of water stored in the circulating pipeline due to too high preset temperature of a user is prevented; at the same time when T Presetting ＞T Preheating max The controller also controls the water inlet temperature T Inflow of water Or the installation environment temperature T Environment (environment) Automatically preset the temperature T Presetting Adjust to the target preheating temperature T Target object The self-adaptive regulation of the preheating temperature is realized, so that the self-adaptive regulation of the preset temperature can ensure that the temperature of water stored in the circulating pipeline is not too high, and the problem that the temperature of water stored in the circulating pipeline of the existing zero-cold water gas water heater is too high is solved.
Drawings
FIG. 1 is a schematic structural diagram of a self-adaptive temperature-control zero-cooling water gas water heater provided in embodiment 1 of the present invention;
FIG. 2 is a control flow chart of a control method of the self-adaptive temperature-control zero cold water gas water heater;
FIG. 3 is a target preheat temperature T Target object With the water inlet temperature T Inflow of water Is a relationship diagram of (1);
FIG. 4 is a target preheat temperature T Target object And the installation environment temperature T Environment (environment) Is a relationship diagram of (1);
FIG. 5 is a control flow chart of a control method of the self-adaptive temperature-control zero cold water gas water heater provided by the embodiment 2 of the invention;
FIG. 6 is a control flow chart of a control method of the self-adaptive temperature-control zero cold water gas water heater provided by the embodiment 3 of the invention;
FIG. 7 is a control flow chart of a control method of the self-adaptive temperature-control zero cold water gas water heater provided by the embodiment 4 of the invention;
in the figure: 1. a zero cold water gas water heater body; 2. a water pump is arranged in the water tank; 3. a water outlet temperature detection module; 4. a gas control valve; 5. an operation display module; 51. a temperature setting key; 52. preheating a function key; 53. a display screen; 6. a controller; 7. a water inlet temperature detection module; 8. and an ambient temperature detection module.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Zero cold water gas water heaters typically exist in several modes: a normal mode, a warm-up mode, and a warm-up and warm-up mode; the normal mode comprises a normal working state and a standby state of the zero cold water gas water heater.
Example 1
The embodiment provides a self-adaptive temperature-control zero-cooling water gas water heater, which is shown in fig. 1, and comprises a zero-cooling water gas water heater body 1, a built-in water pump 2, a water outlet temperature detection module 3, a water inlet temperature detection module 7, a gas control valve 4, an operation display module 5, an environment temperature detection module 8 and a controller 6;
the built-in water pump 2 is arranged on a water flow channel in the zero-cold water gas water heater body 1, the water outlet temperature detection module 3 for detecting water outlet temperature is arranged at the water outlet end in the zero-cold water gas water heater body 1, the water inlet temperature detection module 7 for detecting water inlet temperature is arranged at the water inlet end in the zero-cold water gas water heater body 1, the gas control valve 4 for controlling the on-off of gas and the gas flow is arranged on an air inlet pipeline in the zero-cold water gas water heater body 1, the operation display module 5 for setting temperature, starting a preheating mode, recording preheating heat preservation time and displaying preset temperature is arranged on the outer side wall of the zero-cold water gas water heater body 1, and the environment temperature detection module 8 for detecting the installation environment temperature of the zero-cold water gas water heater body 1 is arranged on the body shell of the zero-cold water gas water heater body 1; the environment temperature detection module 8, the operation display module 5, the built-in water pump 2, the water outlet temperature detection module 3, the water inlet temperature detection module 7 and the gas control valve 4 are all electrically connected with the controller.
When the built-in water pump 2 is started, a water flow passage in the body of the zero-cold water gas water heater body 1 and a water return pipe outside the body of the zero-cold water gas water heater body form a circulation pipeline, the water inlet temperature detection module 7 can detect the water return temperature and the water inlet temperature of the water inlet end of the zero-cold water gas water heater body 1 in real time, the water outlet temperature detection module 3 can detect the water outlet temperature of the water outlet end of the zero-cold water gas water heater body 1 in real time, the operation display module 5 is used for setting the temperature, starting the preheating mode, recording the preheating time and displaying the preset temperature, namely, the operation display module 5 is used for setting the preset temperature of the zero-cold water gas water heater body 1, determining when the zero-cold water gas water heater body 1 enters the preheating mode, and simultaneously, after the zero-cold water gas water heater body 1 enters the preheating heat preservation mode, automatically recording the preheating heat preservation time of the preheating heat preservation mode; the environment temperature detection module 8 is used for detecting the installation environment temperature of the zero cold water gas water heater body 1, and the gas control valve 4 is used for controlling the on-off state and the gas flow of the gas;
because the environment temperature detection module 8, the operation display module 5, the built-in water pump 2 and the gas control valve 4 are all electrically connected with the controller 6, when a user sets a preset temperature through the operation display module 5 and starts the preheating mode of the zero-cold water gas water heater body 1, the controller 6 receives corresponding information, the controller 6 controls the built-in water pump 2 to operate, the gas control valve 4 is opened, wherein the built-in water pump 2 operates to enable water stored in a circulating pipeline to start circulating, and the gas control valve 4 is opened to enable gas to enter the zero-cold water gas water heater body 1 to be ignited to heat the water circulating in the circulating pipeline, so that preheating is realized;
While the controller 6 is controlled according to the water inlet temperatureDegree, water outlet temperature, installation environment temperature T Environment (environment) With a target preheating temperature T Target object The relation between the water temperature and the water temperature of the circulating pipeline is adaptively adjusted by controlling the flow opening of the gas control valve, adjusting the combustion firepower and controlling the water outlet temperature, thereby solving the problem that the water temperature of the circulating pipeline of the existing zero-cold water gas water heater is too high.
In a specific embodiment, the operation display module 5 includes a temperature setting key 51 for setting a temperature, a preheating function key 52 for starting a preheating mode of the zero cold water gas water heater, and a display screen 53 for displaying a preset temperature;
the temperature setting key 51, the preheating function key 52 and the display screen 53 are electrically connected with the controller 6;
the user sets the preset temperature through the temperature setting key 51, and the set temperature is displayed on the display screen 53, so that the user can watch the temperature conveniently; the preheating mode for starting the zero cold water gas water heater according to the self needs by pressing the preheating function key 52 is convenient for users to use.
In a specific embodiment, the temperature setting key 51 includes a temperature raising key and a temperature lowering key, which enables a user to set the temperature at a desired temperature value by himself more quickly.
In a specific embodiment, the outlet water temperature detection module 3 is an outlet water temperature detection probe; the temperature detection module 7 of intaking is the temperature detection probe of intaking, and ambient temperature detection module 8 is the temperature detection probe of environment, and temperature detection probe is the current product of belonging to, can directly obtain through purchasing, and simple structure, low price reduces the manufacturing cost of this embodiment.
The working process of the embodiment is as follows:
the zero cold water gas water heater body 1 is set to enter a preheating mode through the preheating function key 52, the preset temperature is set through the temperature setting key 51, the preset temperature is displayed by the display screen 53, after the zero cold water gas water heater body 1 enters the preheating mode, the built-in water pump 2 operates, the gas control valve 4 is opened, gas enters the zero cold water gas water heater body 1 to be ignited, water in a circulating pipeline is preheated, the water inlet temperature detection module 7 is used for detecting the backwater temperature and the water inlet temperature of the zero cold water gas water heater body 1, the water outlet temperature detection module 3 is used for detecting the water outlet temperature of the zero cold water gas water heater body 1, the environment temperature detection module 8 is used for detecting the installation environment temperature of the zero cold water gas water heater body 1, and the controller 6 controls the working mode of the zero cold water gas water heater body 1 according to the water inlet temperature, the water outlet temperature, the installation environment temperature and the preset temperature, so that the self-adaptive adjustment of the preset temperature is realized, the limitation of the water storage temperature in the circulating pipeline is realized, and the problem of overhigh water storage temperature in the circulating pipeline of the existing zero cold water gas water heater is solved.
The invention also provides a control method of the self-adaptive temperature-control zero cold water gas water heater, as shown in fig. 2, the method comprises the following steps:
s1, starting a preheating mode of a zero cold water gas water heater body 1;
s2, detecting a preset temperature T of the zero cold water gas water heater body 1 Presetting Temperature T of water inlet Inflow of water Mounting ambient temperature T Environment (environment) ；
S3, judging the preset temperature T Presetting Whether or not it satisfies: t (T) Presetting ＞T Preheating max Wherein T is Preheating max A maximum preheat temperature that is a preheat temperature threshold range;
if not, the controller 6 controls the temperature according to the preset temperature T Presetting Controlling the water storage temperature of the circulating pipeline;
if yes, the controller 6 controls the water inlet temperature T Inflow of water Or the installation environment temperature T Environment (environment) Automatically preset the temperature T Presetting Adjust to the target preheating temperature T Target object Then according to the target preheating temperature T Target object Controlling the water storage temperature of the circulating pipeline and the target preheating temperature T Target object Is any temperature value within a preheating temperature threshold range;
wherein the preheating temperature threshold range is a preset temperature T when the zero cold water gas water heater body is in a preheating mode Presetting Is a temperature range previously stored in the zero cold water gas water heater controller 6;
The preheating temperature threshold range can be 35-50 ℃, then T Preheating max The temperature is 50 ℃, so that the problem that the preheating temperature of the water in the circulating pipeline is too high when the zero cold water gas water heater is used again next time due to the fact that the preset temperature is too high when the zero cold water gas water heater is used last time by a user can be avoided.
In addition, because when T Presetting ＞T Preheating max At the time, the controller 6 controls the water inlet temperature T Inflow of water Or the installation environment temperature T Environment (environment) Automatically preset the temperature T Presetting Adjust to the target preheating temperature T Target object Thus, the water storage temperature in the circulating pipeline of the zero cold water heater body 1 can be along with the water inlet temperature T Inflow of water Or the installation environment temperature T Environment (environment) And (3) adaptively correcting the change of the water heater to realize the self-adaptive temperature control of the zero cold water gas water heater.
Example 2
The embodiment provides a control method of a self-adaptive temperature-control zero cold water gas water heater, as shown in fig. 5, comprising the following steps:
s1, starting a preheating mode of the zero-cold water gas water heater body 1 by operating a preheating function key 52 of a display module 5, controlling the operation of the built-in water pump 2 by a controller 6, controlling the opening of a gas control valve 4, and enabling the zero-cold water heater body 1 to enter the preheating mode from a normal mode;
S2, the controller 6 records a preset temperature T when the zero cold water gas water heater body 1 starts a preheating mode Presetting The method comprises the steps of carrying out a first treatment on the surface of the The water inlet temperature detection module 7 detects the water inlet temperature T in real time Inflow of water And the water inlet temperature T Inflow of water To the controller 6;
s3, the controller 6 judges the preset temperature T Presetting Whether or not it satisfies: t (T) Presetting ＞T Preheating max Wherein T is Preheating max A maximum preheat temperature that is a preheat temperature threshold range; if not, S31 is carried out; if yes, then go to S32:
s31, the controller 6 receives the water inlet temperature T sent by the water inlet temperature detection module 7 Inflow of water And judge the water inlet temperature T Inflow of water Whether or not it is satisfied; t (T) Inflow of water ＞T Target object Wherein T is Target object Target preheating for target preheating temperatureTemperature T Target object Is any temperature value within a preheating temperature threshold range;
if not, the controller 6 controls the built-in water pump 2 to continue to operate, the gas control valve 4 continues to be opened, namely the zero cold water gas water heater body 1 continues to maintain the preheating mode, and the preset temperature T is reached Presetting Maintaining a preheating temperature threshold range;
if yes, the controller 6 controls the built-in water pump 2 to stop running, the gas control valve 4 is closed, namely the zero cold water gas water heater body 1 exits the preheating mode;
the controller 6 controls the preset temperature T Presetting Recovering the set range of the preheating temperature threshold range from the preheating temperature threshold range to a preset temperature threshold range;
the controller 6 controls the zero cold water gas water heater body 1 to be switched into a common mode;
s32, the controller controls the water inlet temperature T Inflow of water Automatically preset the temperature T Presetting Adjust to the target preheating temperature T Target object S31 is repeated.
In the present embodiment, the target warm-up temperature T Target object The determining method of (1) comprises the following steps:
the controller 6 receives the water inlet temperature T sent by the water inlet detection module 7 Inflow of water After that, the temperature T of the inlet water is compared Inflow of water Maximum inlet water temperature T within inlet water temperature threshold range Max of water inflow Minimum inlet water temperature T within inlet water temperature threshold range Inflow min The relationship between them is as shown in fig. 3:
if the controller 6 judges the water inlet temperature T Inflow of water The method meets the following conditions: t (T) Inflow of water ≥T Max of water inflow The controller 6 automatically preheats the target temperature T Target object To a minimum preheating temperature T equal to the preheating temperature threshold range Preheating for min ；
If the controller 6 judges the water inlet temperature T Inflow of water The method meets the following conditions: t (T) Inflow of water ≤T Inflow min The controller 6 automatically preheats the target temperature T Target object To a maximum preheating temperature T equal to the preheating temperature threshold range Preheating max ；
If the controller 6 judges the water inlet temperature T Inflow of water The method meets the following conditions: t (T) Inflow min ＜T Inflow of water ＜T Max of water inflow The controller 6 controls the target warm-up temperature T Target object According to T Target object ＝(T Preheating max -T Preheating for min )×(T Max of water inflow -T Inflow of water )/(T Max of water inflow -T Inflow min )+T Preheating for min Calculating to obtain; target preheating temperature T Target object And T is Inflow of water The relationship between these is shown in fig. 3.
In this embodiment, the preheating temperature threshold range is a preset temperature T when the zero cold water gas water heater body is in the preheating mode Presetting The set range of the zero cold water gas water heater controller is a temperature range stored in the zero cold water gas water heater controller in advance; the preheating temperature threshold range can be 35-50 ℃, then T Preheating max The temperature is 50 ℃;
first, the preset temperature T is compared Presetting And T is Preheating max The following can be avoided:
for example, when the user uses the zero-water heater for the previous time, that is, when the zero-water heater is in the normal mode, the preset temperature set by the user is 60 ℃, if the preset temperature is not reduced by 60 ℃, the preheating temperature of water stored in the circulating pipeline of the zero-water heater is up to 60 ℃, and then when the user uses the zero-water heater again, the water flowing out of the water outlet pipe of the zero-water heater is up to 60 ℃, so that the risk of scalding the user exists;
In the present embodiment, the preset temperature T is compared Presetting And T is Preheating max The risk can be well eliminated, and the preheating temperature of the water stored in the circulating pipeline is limited within the preheating temperature threshold range.
Further, because the target warm-up temperature T of the present embodiment Target object According to the water inlet temperature T Inflow of water Determine the temperature T of the inlet water Inflow of water Can be different along with the different external environment temperatures, for example, the water inlet temperature in summer is higher than the water inlet temperature in winter, so the preheating temperature T is aimed at in order Target object Better adapts to the change of the environment, so according to the water inlet temperature T Inflow of water Maximum inlet within inlet water temperature thresholdWater temperature T Max of water inflow Minimum inlet water temperature T within inlet water temperature threshold range Inflow min Is used to determine the target preheating temperature T Target object ；
In the present embodiment, the inlet water temperature threshold range is a temperature range pre-stored in the controller 6, for example, the inlet water temperature threshold range of the present embodiment may be 10-35 ℃, then T Max of water inflow Is 35 ℃, T Inflow min The temperature is 10 ℃;
the inlet water temperature threshold range can be pre-stored in the controller 6 in advance according to the local environment temperature of the user.
Example 3
The embodiment provides a control method of a self-adaptive temperature-control zero cold water gas water heater, as shown in fig. 6, comprising the following steps:
S1, starting a preheating mode of the zero-cold water gas water heater body 1 by operating a preheating function key 52 of a display module 5, controlling the operation of the built-in water pump 2 by a controller 6, controlling the opening of a gas control valve 4, and enabling the zero-cold water heater body 1 to enter the preheating mode from a normal mode;
s2, the controller 6 records a preset temperature T when the zero cold water gas water heater body 1 starts a preheating mode Presetting The method comprises the steps of carrying out a first treatment on the surface of the The ambient temperature detection module 8 detects the installation ambient temperature T in real time Environment (environment) And will install ambient temperature T Environment (environment) To the controller 6; the water inlet temperature detection module 7 detects the water inlet temperature T in real time Inflow of water And the water inlet temperature T Inflow of water To the controller 6;
s3, the controller 6 receives the preset temperature T Presetting After that, the preset temperature T is judged Presetting Whether or not it satisfies: t (T) Presetting ＞T Preheating max Wherein T is Preheating max A maximum preheat temperature that is a preheat temperature threshold range; if not, S31 is carried out; if yes, then go to S32:
s31, the controller 6 receives the water inlet temperature T sent by the water inlet temperature detection module 7 Inflow of water And judge the installation environment temperature T Environment (environment) Whether or not it is satisfied; t (T) Inflow of water ＞T Target object Target preheating temperature T Target object To preheat temperatureAny temperature value within a threshold range;
If not, the controller 6 controls the built-in water pump 2 to continue to operate, the gas control valve 4 continues to be opened, namely the zero cold water gas water heater body 1 continues to maintain the preheating mode, and the preset temperature T is reached Presetting Maintaining a preheating temperature threshold range;
if yes, the controller 6 controls the built-in water pump 2 to stop running, the gas control valve 4 is closed, namely the zero cold water gas water heater body 1 exits the preheating mode;
the controller 6 controls the preset temperature T Presetting Recovering the set range of the preheating temperature threshold range from the preheating temperature threshold range to a preset temperature threshold range;
the controller 6 controls the zero cold water gas water heater body 1 to be switched into a common mode;
s32, the controller is used for controlling the temperature T according to the installation environment Environment (environment) Automatically preset the temperature T Presetting Adjust to the target preheating temperature T Target object S31 is repeated.
In the present embodiment, the target warm-up temperature T Target object The determining method of (1) comprises the following steps:
the controller 6 receives the installation environment temperature T sent by the environment temperature detection module 8 Environment (environment) Thereafter, the mounting environment temperature T is compared Environment (environment) Maximum ambient temperature T within the installation ambient temperature threshold range Environment max Minimum ambient temperature T within a mounting ambient temperature threshold range Environment min The relationship between them is shown in fig. 4:
If the controller 6 judges the installation environment temperature T Environment (environment) The method meets the following conditions: t (T) Environment (environment) ≥T Environment max The controller 6 automatically preheats the target temperature T Target object To a minimum preheating temperature T equal to the preheating temperature threshold range Preheating for min ；
If the controller 6 judges the installation environment temperature T Environment (environment) The method meets the following conditions: t (T) Environment (environment) ≤T Environment min The controller 6 automatically preheats the target temperature T Target object To a maximum preheating temperature T equal to the preheating temperature threshold range Preheating max ；
If the controller 6 judges the installation environment temperature T Environment (environment) The method meets the following conditions: t (T) Preheating for min ＜T Environment (environment) ＜T Environment max The controller 6 controls the target warm-up temperature T Target object According to T Target object ＝(T Preheating max -T Preheating for min )×(T Environment max -T Environment (environment) )/(T Environment max -T Environment min )+T Preheating for min Calculating to obtain; target preheating temperature T Target object And T is Environment (environment) The relationship between these is shown in fig. 4.
In this embodiment, the preheating temperature threshold range is a preset temperature T when the zero cold water gas water heater body is in the preheating mode Presetting The set range of the zero cold water gas water heater controller is a temperature range stored in the zero cold water gas water heater controller in advance; the preheating temperature threshold range can be 35-50 ℃, then T Preheating max The temperature is 50 ℃;
first, the preset temperature T is compared Presetting And T is Preheating max The following can be avoided:
for example, when the user uses the zero-water heater for the previous time, that is, when the zero-water heater is in the normal mode, the preset temperature set by the user is 60 ℃, if the preset temperature is not reduced by 60 ℃, the preheating temperature of water stored in the circulating pipeline of the zero-water heater is up to 60 ℃, and then when the user uses the zero-water heater again, the water flowing out of the water outlet pipe of the zero-water heater is up to 60 ℃, so that the risk of scalding the user exists;
in the present embodiment, the preset temperature T is compared Presetting And T is Preheating max The risk can be well eliminated, and the preheating temperature of the water stored in the circulating pipeline is limited within the preheating temperature threshold range.
Further, because the target warm-up temperature T of the present embodiment Target object According to the installation environment temperature T Environment (environment) Determine the installation environment temperature T Environment (environment) Will vary with the ambient temperature, such as the summer mounting ambient temperature T Environment (environment) Will be higher than the winter installation environment temperature T Environment (environment) High, so in order to make the target preheating temperature T Target object Better adapt to the change of the environment, soAccording to the installation environment temperature T Environment (environment) Maximum ambient temperature T within the installation ambient temperature threshold range Environment max Minimum ambient temperature T within a mounting ambient temperature threshold range Environment min Is used to determine the target preheating temperature T Target object ；
In the present embodiment, the installation environment temperature threshold range is a temperature range pre-stored in the controller 6, for example, the installation environment temperature threshold range of the present embodiment may be 0 ℃ to 35 ℃, then T Max of water inflow Is 35 ℃, T Inflow min The temperature is 0 ℃;
the installation ambient temperature threshold range may be pre-stored in advance in the controller 6 according to the user's local ambient temperature.
Example 4
The embodiment provides a control method of a self-adaptive temperature-control zero cold water gas water heater, as shown in fig. 7, comprising the following steps:
s1, starting a preheating mode of the zero-cold water gas water heater body 1 by operating a preheating function key 52 of a display module 5, controlling the operation of the built-in water pump 2 by a controller 6, controlling the opening of a gas control valve 4, and enabling the zero-cold water heater body 1 to enter the preheating mode from a normal mode;
s2, the controller 6 records a preset temperature T when the zero cold water gas water heater body 1 starts a preheating mode Presetting The method comprises the steps of carrying out a first treatment on the surface of the The ambient temperature detection module 8 detects the installation ambient temperature T in real time Environment (environment) And will install ambient temperature T Environment (environment) To the controller 6; the water inlet temperature detection module 7 detects the water inlet temperature T in real time Inflow of water And the water inlet temperature T Inflow of water To the controller 6;
s3, the controller 6 receives the preset temperature T Presetting After that, the preset temperature T is judged Presetting Whether or not it satisfies: t (T) Presetting ＞T Preheating max Wherein T is Preheating max A maximum preheat temperature that is a preheat temperature threshold range; if not, S31 is carried out; if yes, then go to S32:
s31, the controller 6 receives the water inlet temperature T sent by the water inlet temperature detection module 7 Inflow of water And judge the installation environment temperature T Environment (environment) Whether or not it is satisfied; t (T) Inflow of water ＞T Target object The method comprises the steps of carrying out a first treatment on the surface of the If not, S311 is performed; if yes, go to S312;
s311, the controller 6 controls the built-in water pump 2 to continue to operate, the gas control valve 4 continues to be opened, namely the zero cold water gas water heater body 1 continues to maintain the preheating mode, and the preset temperature T is reached Presetting Maintaining a preheating temperature threshold range;
s312, the controller 6 controls the built-in water pump 2 to stop running, and the gas control valve 4 is closed, namely the zero cold water gas water heater body 1 exits the preheating mode;
the controller 6 controls the preset temperature T of the operation display module 5 Presetting Recovering the set range of the preheating temperature threshold range from the preheating temperature threshold range to a preset temperature threshold range;
The controller 6 controls the zero cold water gas water heater body 1 to be switched into a preheating heat preservation mode;
s3121, after the controller 6 controls the zero cold water gas water heater body 1 to switch to the preheating heat preservation mode, the water inlet temperature T is detected Inflow of water The operation display module 5 records the accumulated preheating and heat preservation time t and sends the preheating and heat preservation time t to the controller 6;
the controller 6 judges the water inlet temperature T Inflow of water Whether or not less than the program holding temperature:
if yes, the controller 6 controls the zero cold water gas water heater body 1 to be automatically switched into a preheating mode;
if not, the controller 6 judges whether the preheating holding time t exceeds the program holding time:
if yes, the controller 6 controls the zero cold water gas water heater body 1 to exit the preheating heat preservation mode and switch to the common mode;
if not, the controller 6 controls the zero cold water gas water heater body 1 to continuously maintain the preheating heat preservation mode;
s32, the controller is used for controlling the temperature T according to the installation environment Environment (environment) Automatically preset the temperature T Presetting Adjust to the target preheating temperature T Target object S31 is repeated.
Wherein the program heat preservation temperature is a temperature pre-stored in the controller 6 and is smaller than the target preheating temperature T Target object ；
By judging the temperature T of the inlet water Inflow of water The temperature of the water stored in the circulating pipeline can be kept in a hot state all the time, so that the water is prevented from becoming cold, and the water is kept hot immediately after being opened.
The program incubation time is a time pre-stored in the controller 6, for example, in this embodiment, the program incubation time may be 20min, 30min, etc.
By judging the relation between the preheating heat preservation time t and the program heat preservation time, the zero-cold water gas water heater body 1 can be prevented from maintaining the preheating heat preservation mode for a long time, and the water inlet temperature detection module 7, the water outlet temperature detection module 3, the environment temperature detection module 8, the controller 6 and the like are always in the working state when in the preheating heat preservation mode, so that electric energy is wasted, and the risk of reducing the service life of the zero-cold water gas water heater exists.
In a specific embodiment, the preheating temperature threshold range is within a preset temperature threshold range, so as to avoid scalding caused by overhigh temperature of water stored in the circulating pipeline;
for example, in this embodiment, the pre-heat temperature threshold may be in the range of 35-50 ℃ and the preset temperature threshold may be in the range of 35-60 ℃.
In a specific embodiment, the water outlet temperature T can be used Effluent water With a target preheating temperature T Target object Adjusting the opening of the gas control valve 4; for example when the temperature T of the discharged water Effluent water With a target preheating temperature T Target object When the difference value of (2) is larger, the controller 6 controls the opening degree of the gas control valve 4 to be increased, the firepower to be increased, and the temperature rising speed of water stored in the circulating pipeline to be improved; when the water outlet temperature T Effluent water With a target preheating temperature T Target object When the difference value of the water temperature is smaller, the controller 6 controls the opening degree of the gas control valve 4 to be reduced, the firepower to be reduced, and the heating speed of the water stored in the circulating pipeline to be reduced, thereby reducing the water outlet temperature T Effluent water With a target preheating temperature T Target object Ensures the outlet water temperature T Effluent water Near the target preheating temperature T Target object 。
In a specific embodiment, the step of starting the preheating mode of the zero cold water gas water heater body 1 comprises:
starting a preheating mode of the zero cold water gas water heater body 1 through the operation display module 5, and sending information of starting the preheating mode of the zero cold water gas water heater body 1 to the controller 6;
after the controller 6 receives the information of starting the preheating mode of the zero cold water gas water heater body 1 sent by the operation display module 5, the controller 6 controls the built-in water pump 2 to start and controls the gas control valve 4 to open, so that the zero cold water gas water heater body 1 enters the preheating mode.
In summary, the control method of the present invention can adaptively adjust the target preheating temperature T Target object Regulating and controlling preset temperature T Presetting The set range of the water temperature in the circulating pipeline is avoided.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims (8)

1. The control method of the self-adaptive temperature-control zero-cooling water gas water heater is characterized by comprising the following steps of:
starting a preheating mode of the zero cold water gas water heater body (1);
detecting a preset temperature T of the zero cold water gas water heater body (1) Presetting Temperature T of water inlet Inflow of water Mounting ambient temperature T Environment (environment) ；
Judging the preset temperature T Presetting Whether or not it satisfies: t (T) Presetting ＞T Preheating max Wherein said T is Preheating max A maximum preheat temperature that is a preheat temperature threshold range;
if not, the controller (6) controls the temperature T according to the preset temperature Presetting Controlling the water storage temperature of the circulating pipeline; if so, the controller (6) is based on theThe water inlet temperature T Inflow of water Or the installation environment temperature T Environment (environment) Automatically setting the preset temperature T Presetting Adjust to the target preheating temperature T Target object And then according to the target preheating temperature T Target object Controlling the water storage temperature of the circulating pipeline, wherein the target preheating temperature T Target object Is any temperature value within the preheating temperature threshold range;
wherein the controller (6) is used for controlling the water inlet temperature T Inflow of water Automatically setting the preset temperature T Presetting To the target preheating temperature T Target object The method comprises the following steps:
The controller (6) judges the water inlet temperature T Inflow of water Whether or not it satisfies: t (T) Inflow of water ≥T Max of water inflow 、T Inflow of water ≤T Inflow min Or T Inflow min ＜T Inflow of water ＜T Max of water inflow Wherein said T is Max of water inflow A maximum inlet water temperature within the inlet water temperature threshold range; the T is Inflow min A minimum inlet water temperature within the inlet water temperature threshold range;
if the controller (6) judges the water inlet temperature T Inflow of water The method meets the following conditions: t (T) Inflow of water ≥T Max of water inflow The controller (6) automatically preheats the target preheating temperature T Target object To a minimum preheating temperature T equal to said preheating temperature threshold range Preheating for min ；
If the controller (6) judges the water inlet temperature T Inflow of water The method meets the following conditions: t (T) Inflow of water ≤T Inflow min The controller (6) automatically preheats the target preheating temperature T Target object To a maximum preheating temperature T equal to the preheating temperature threshold range Preheating max ；
If the controller (6) judges the water inlet temperature T Inflow of water The method meets the following conditions: t (T) Inflow min ＜T Inflow of water ＜T Max of water inflow The controller (6) controls the target warm-up temperature T Target object According to T Target object ＝(T Preheating max -T Preheating for min )×(T Max of water inflow -T Inflow of water )/(T Max of water inflow -T Inflow min )+T Preheating for min Calculating to obtain;
the controller (6) is used for controlling the water inlet temperature T Environment (environment) Automatically setting the preset temperature T Presetting To the target preheating temperature T Target object The method comprises the following steps:
the controller (6) judges the installation environment temperature T Environment (environment) Whether or not it satisfies: t (T) Environment (environment) ≥T Environment max 、T Environment (environment) ≤T Environment min Or T Environment min ＜T Environment (environment) ＜T Environment max Wherein said T is Environment max A maximum ambient temperature within the installation ambient temperature threshold range; the T is Environment min A minimum ambient temperature within the installation ambient temperature threshold range;
if the controller (6) judges the installation environment temperature T Environment (environment) The method meets the following conditions: t (T) Environment (environment) ≥T Environment max The controller (6) automatically preheats the target preheating temperature T Target object Reducing to a minimum preheat temperature T equal to the preheat temperature threshold range Preheating for min ；
If the controller (6) judges the installation environment temperature T Environment (environment) The method meets the following conditions: t (T) Environment (environment) ≤T Environment min The controller (6) automatically preheats the target preheating temperature T Target object To a maximum preheating temperature T equal to the preheating temperature threshold range Preheating max ；
If the controller (6) judges the installation environment temperature T Environment (environment) The method meets the following conditions: t (T) Environment min ＜T Environment (environment) ＜T Environment max The controller (6) controls the target warm-up temperature T Target object According to T Target object ＝(T Preheating max -T Preheating for min )×(T Environment max -T Environment (environment) )/(T Environment max -T Environment min )+T Preheating for min And (5) calculating to obtain the product.
2. The control method of an adaptive temperature-controlled zero-cooling water gas water heater according to claim 1, wherein the preset temperature T is adjusted Presetting Step pack of setting range of (2)The method comprises the following steps:
in the preheating mode of the zero cold water gas water heater body (1), the inlet water temperature T is detected Inflow of water ；
The controller (6) judges the water inlet temperature T Inflow of water Whether or not it is satisfied; t (T) Inflow of water ＞T Target object ；
If not, the controller (6) controls the zero cold water gas water heater body (1) to continuously maintain the preheating mode, and the preset temperature T is set Presetting Maintaining the pre-heat temperature threshold range;
if yes, the controller (6) controls the zero cold water gas water heater body (1) to exit the preheating mode, and the preset temperature T is set Presetting The set range of the temperature control device is recovered from the preheating temperature threshold range to the preset temperature threshold range, and is switched to the preheating heat preservation mode or the common mode.
3. The control method of the self-adaptive temperature-control zero cold water gas water heater according to claim 2, wherein after the controller (6) controls the zero cold water gas water heater body (1) to be switched into the preheating heat preservation mode, the inlet water temperature T is detected Inflow of water Recording accumulated preheating and heat preserving time t;
the controller (6) judges the water inlet temperature T Inflow of water Whether or not less than the program holding temperature:
if yes, the controller (6) controls the zero cold water gas water heater body (1) to exit the preheating heat preservation mode and switch to the preheating mode;
if not, the controller (6) judges whether the preheating heat preservation time t exceeds the program heat preservation time:
if yes, the controller (6) controls the zero cold water gas water heater body (1) to exit the preheating heat preservation mode and switch to the common mode;
if not, the controller (6) controls the zero cold water gas water heater body (1) to maintain the preheating heat preservation mode.
4. A control method of an adaptive temperature-controlled zero-cold water gas water heater according to claim 1, characterized in that the step of starting the preheating mode of the zero-cold water gas water heater body (1) comprises:
starting a preheating mode of the zero cold water gas water heater body (1) through an operation display module (5), and sending information of starting the preheating mode of the zero cold water gas water heater body (1) to the controller (6);
after the controller (6) receives the information of starting the preheating mode of the zero cold water gas water heater body (1) sent by the operation display module (5), the controller (6) controls the built-in water pump (2) to start and controls the gas control valve (4) to open, and then the zero cold water gas water heater body (1) enters the preheating mode.
5. The self-adaptive temperature-control zero cold water gas water heater is characterized by comprising a zero cold water gas water heater body (1), a built-in water pump (2), a water outlet temperature detection module (3), a water inlet temperature detection module (7), a gas control valve (4), an operation display module (5), an environment temperature detection module (8) and a controller (6), wherein the self-adaptive temperature-control cold water gas water heater is applied to the control method of any one of claims 1-4;
the built-in water pump (2) is arranged on a water flow path in the zero-cold water gas water heater body (1), the water outlet temperature detection module (3) for detecting water temperature is arranged at a water outlet end in the zero-cold water gas water heater body (1), the water inlet temperature detection module (7) for detecting water inlet temperature and water return temperature is arranged at a water inlet end in the zero-cold water gas water heater body (1), the gas control valve (4) for controlling gas on-off and gas flow is arranged on an air inlet pipeline in the zero-cold water gas water heater body (1), and the operation display module (5) for setting temperature, starting a preheating mode, recording preheating heat preservation time and displaying preset temperature is arranged on the outer side wall of the zero-cold water gas water heater body (1), and the environment temperature detection module (8) for detecting the installation environment temperature of the zero-cold water gas water heater body (1) is arranged on a machine body shell of the zero-cold water gas water heater body (1); the environment temperature detection module (8), the operation display module (5), the built-in water pump (2), the water outlet temperature detection module (3), the water inlet temperature detection module (7) and the gas control valve (4) are electrically connected with the controller (6).
6. The self-adaptive temperature-controlled zero-cold water gas water heater as claimed in claim 5, wherein the operation display module (5) includes a temperature setting key (51) for setting a temperature, a preheating function key (52) for starting a preheating mode of the zero-cold water gas water heater, and a display screen (53) for displaying a preset temperature;
the temperature setting key (51), the preheating function key (52) and the display screen (53) are electrically connected with the controller (6).
7. The self-adaptive temperature-controlled zero-cooling water gas water heater as claimed in claim 6, wherein the temperature setting key (51) includes a temperature raising key and a temperature lowering key.
8. The self-adaptive temperature-control zero-cooling water gas water heater according to claim 6, wherein the water outlet temperature detection module (3) is a water outlet temperature detection probe; the water inlet temperature detection module (7) is a water inlet temperature detection probe; the ambient temperature detection module (8) is an ambient temperature detection probe.
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