CN110195937B - Anti-freezing method, anti-freezing control system and gas water heater - Google Patents
Anti-freezing method, anti-freezing control system and gas water heater Download PDFInfo
- Publication number
- CN110195937B CN110195937B CN201910418833.2A CN201910418833A CN110195937B CN 110195937 B CN110195937 B CN 110195937B CN 201910418833 A CN201910418833 A CN 201910418833A CN 110195937 B CN110195937 B CN 110195937B
- Authority
- CN
- China
- Prior art keywords
- freezing
- temperature value
- electric heating
- working mode
- combustion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—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
Abstract
The invention relates to an anti-freezing method, an anti-freezing control system and a gas water heater, wherein the anti-freezing method comprises the following steps: acquiring a first detection temperature value on a pipeline of a heat exchanger and a second detection temperature value of the environment where the gas water heater is located; determining to enter an anti-freezing working mode or maintain a standby working mode according to the first detected temperature value; and if the anti-freezing working mode is determined to be entered, determining to enter a first anti-freezing working mode, a second anti-freezing working mode or a third anti-freezing working mode according to the second detected temperature value. The anti-freezing method has the advantages that the appropriate anti-freezing working mode is determined according to the second detection temperature value of the environment where the gas water heater is located, the anti-freezing level is clear, the freezing and frost cracking of the pipeline of the gas water heater can be effectively prevented, meanwhile, the anti-freezing efficiency is high, and the energy waste can be avoided.
Description
Technical Field
The invention relates to a water heater, in particular to an anti-freezing method, an anti-freezing control system and a gas water heater.
Background
In northern areas, the outdoor temperature is lower in winter, because the smoke tube of the forced-ventilated type gas water heater is led to the outdoor, cold air easily enters the interior of the forced-ventilated type gas water heater through the smoke tube to exchange heat with water in the pipeline, and when the temperature of residual water in the pipeline is lower than 0 ℃, the pipeline has the risk of frost crack. In the existing anti-freezing measures of the gas water heater, either only the anti-downdraft joint is adopted for anti-freezing, or only the electric heating is adopted for anti-freezing, or only the combustion is adopted for anti-freezing, or only the combination of the two is adopted. However, when the external conditions are severe, such as the presence of strong wind and low ambient temperature, the gas water heater still has a freezing condition.
Disclosure of Invention
The invention aims to provide an anti-freezing method which can effectively prevent pipelines from freezing and cracking when the ambient temperature is low, can avoid energy waste, and is energy-saving and environment-friendly.
The second technical problem to be solved by the invention is to provide an anti-freezing control system, which can effectively prevent the pipeline from freezing and cracking when the environmental temperature is low, and can avoid energy waste, save energy and protect environment.
The third technical problem to be solved by the invention is to provide a gas water heater, which can effectively prevent pipelines from freezing and cracking when the ambient temperature is low, can avoid energy waste, and is energy-saving and environment-friendly.
The first technical problem is solved by the following technical scheme:
an anti-freezing method comprises the following steps:
acquiring a first detection temperature value on a pipeline of a heat exchanger and a second detection temperature value of the environment where the gas water heater is located;
determining to enter an anti-freezing working mode or maintain a standby working mode according to the first detected temperature value;
if the anti-freezing working mode is determined to be entered, entering a first anti-freezing working mode, a second anti-freezing working mode or a third anti-freezing working mode according to the second detected temperature value;
when the first anti-freezing working mode is determined to be entered, starting warm air anti-freezing;
when the second anti-freezing working mode is determined to be entered, starting one of electric heating anti-freezing and combustion anti-freezing;
and when the third freeze prevention working mode is determined to be entered, starting electric heating freeze prevention and combustion freeze prevention.
Compared with the background technology, the antifreezing method of the invention has the following beneficial effects: when the environment temperature of the gas water heater is higher (for example, more than 15 ℃), the warm air can be used for antifreezing by fully utilizing high-temperature environment air, and at the moment, the electric heating antifreezing and combustion antifreezing can be avoided when not necessary, so that the energy is saved and the environment is protected; when the environment temperature of the gas water heater is low (for example, the temperature is between-5 and 15 ℃), the warm air anti-freezing effect can not be achieved, the anti-freezing capacity of the gas water heater can be ensured by utilizing electric heating anti-freezing or combustion anti-freezing, and the combustion anti-freezing or the electric heating anti-freezing can not be started synchronously when the temperature is unnecessary, so that the energy is saved, and the environment is protected; when the environment temperature of the gas water heater is extremely low (for example, not more than-5 ℃), the combustion antifreezing and the electric heating antifreezing are simultaneously started, so that the heat exchanger of the gas water heater can not be frozen, and the water inlet and outlet pipelines can not be frozen. Therefore, the appropriate anti-freezing working mode is determined according to the second detection temperature value of the environment where the gas water heater is located, the anti-freezing level is clear, freezing and frost cracking of pipelines of the gas water heater can be effectively prevented, meanwhile, the anti-freezing efficiency is high, and energy waste can be avoided.
In one embodiment, when it is determined that the first anti-freeze operation mode is entered, after the step of starting the warm air anti-freeze, the method further includes: acquiring a third detection temperature value on a pipeline of the heat exchanger within a first preset time after the fan is started, and determining to turn off the fan and enter a standby state or start electric heating for freeze prevention while keeping warm air for freeze prevention according to the third detection temperature value;
if the fact that the electric heating and the anti-freezing are started while the warm air is kept anti-freezing is determined, a fourth detection temperature value on the pipeline of the heat exchanger is obtained within a second preset time after the electric heating and the anti-freezing are started simultaneously, and the fan and the electric heating device are determined to be turned off and enter a standby state according to the fourth detection temperature value, or the electric heating and the anti-freezing are turned off and the combustion and the anti-freezing are started simultaneously;
and if the fact that the electric heating is turned off and the combustion is simultaneously started for freezing prevention is determined, acquiring a fifth detection temperature value on a pipeline of the heat exchanger within a third preset time for simultaneously starting the combustion and freezing prevention, and determining to turn off the fan and the combustion device and enter a standby state or turn off the fan and the combustion device and simultaneously start a freezing alarm action according to the fifth detection temperature value.
In one embodiment, when it is determined to enter the second antifreeze mode of operation, after the step of initiating one of electric heating antifreeze and combustion antifreeze further comprises:
acquiring a sixth detection temperature value on a pipeline of the heat exchanger within a fourth preset time after the step of starting one of electric heating freeze protection and combustion freeze protection, determining to turn off an electric heating device or a combustion device and enter a standby state according to the sixth detection temperature value, or starting the other one of electric heating freeze protection and combustion freeze protection while keeping the other one of electric heating freeze protection and combustion freeze protection working;
and if the fact that the other one of the electric heating anti-freezing and the combustion anti-freezing is started while the other one of the electric heating anti-freezing and the combustion anti-freezing is kept working is determined, a seventh detection temperature value on a pipeline of the heat exchanger is obtained within a fifth preset time of the other one of the electric heating anti-freezing and the combustion anti-freezing is started simultaneously, and the fact that the electric heating device and the combustion device are turned off and enter a standby state or the electric heating device and the combustion device are turned off and a freezing alarm action is started simultaneously is determined according to the seventh detection temperature value.
In one embodiment, the method further includes, when it is determined to enter the second antifreeze mode of operation, activating electric heating antifreeze, and after the activating the electric heating antifreeze step:
acquiring a sixth detection temperature value on the pipeline of the heat exchanger within a fourth preset time after the step of starting the electric heating and anti-freezing, and determining to turn off the electric heating device and enter a standby state according to the sixth detection temperature value, or starting combustion and anti-freezing while turning off the electric heating device;
and if the fact that the electric heating device is turned off and the combustion is started for anti-freezing is determined, acquiring a seventh detection temperature value on a pipeline of the heat exchanger within a fifth preset time for starting the combustion for anti-freezing, and determining to turn off the combustion device and enter a standby state according to the seventh detection temperature value or to start a freezing alarm action while turning off the combustion device.
In one embodiment, when it is determined that the third freeze prevention operation mode is entered, the method further includes, for a sixth preset time after the start of the electric heating freeze prevention and combustion freeze prevention step:
and acquiring an eighth detection temperature value on a pipeline of the heat exchanger, determining to turn off the electric heating device and the combustion device and enter a standby state according to the eighth detection temperature value, or turning off the electric heating device and the combustion device and starting a freezing alarm action at the same time.
In one embodiment, the anti-freezing method further comprises the following steps: and judging whether the gas water heater is in a standby working mode, and determining to enter an anti-freezing working mode or maintain the standby working mode according to the first detection temperature value when the gas water heater is judged to be in the standby working mode. Therefore, only when the gas water heater is in the standby working mode, the gas water heater is determined to enter the anti-freezing working mode or maintain the standby working mode according to the first detection temperature value; when the gas water heater is in a shower working mode, anti-freezing treatment is not needed.
In one embodiment, the method for determining whether the gas water heater is in the standby operation mode comprises the following steps:
acquiring the water flow on a water inlet and outlet pipeline of a heat exchanger;
and judging whether the water flow is greater than a starting set value, if so, indicating that the gas water heater is in a shower working mode, and if not, indicating that the gas water heater is in a standby working mode.
In one embodiment, the specific method for determining to enter the anti-freeze operation mode or maintain the standby operation mode according to the first detected temperature value is as follows: when the first detected temperature value is smaller than a first preset temperature value, entering an anti-freezing working mode; when the first detection temperature is not less than the first temperature preset value, entering a standby working mode;
and/or the specific method for determining to enter the first anti-freezing working mode, the second anti-freezing working mode or the third anti-freezing working mode according to the second detected temperature value comprises the following steps: when the second detected temperature value is larger than a second temperature preset value, entering a first anti-freezing working mode; when the second detected temperature value is larger than the third temperature preset value and not larger than the second temperature preset value, entering a second anti-freezing working mode; when the second detected temperature value is not greater than a third temperature preset value, entering a third freeze prevention working mode; and the second temperature preset value is greater than the third temperature preset value.
The second technical problem is solved by the following technical solutions:
an antifreeze control system comprising: the acquisition module is used for acquiring a first detection temperature value on a pipeline of the heat exchanger and acquiring a second detection temperature value of the environment where the gas water heater is located; the determining module is used for determining to enter an anti-freezing working mode or maintain a standby working mode according to the first detection temperature value, and determining to enter the first anti-freezing working mode, the second anti-freezing working mode or the third anti-freezing working mode according to the second detection temperature value when determining to enter the anti-freezing working mode; the execution module is used for starting warm air anti-freezing when the first anti-freezing working mode is determined to be entered; the execution module is further used for starting one of electric heating anti-freezing and combustion anti-freezing when the second anti-freezing working mode is determined to be entered; and the execution module is also used for starting electric heating anti-freezing and combustion anti-freezing when the third anti-freezing working mode is determined to be entered.
Compared with the background technology, the antifreezing control system has the following beneficial effects:
when the environment temperature of the gas water heater is higher (for example, more than 15 ℃), the warm air can be used for antifreezing by fully utilizing high-temperature environment air, and at the moment, the electric heating antifreezing and combustion antifreezing can be avoided when not necessary, so that the energy is saved and the environment is protected; when the environment temperature of the gas water heater is low (for example, the temperature is between-5 and 15 ℃), the warm air anti-freezing effect can not be achieved, the anti-freezing capacity of the gas water heater can be ensured by utilizing electric heating anti-freezing or combustion anti-freezing, and the combustion anti-freezing or the electric heating anti-freezing can not be started synchronously when the temperature is unnecessary, so that the energy is saved, and the environment is protected; when the environment temperature of the gas water heater is extremely low (for example, not more than-5 ℃), the combustion antifreezing and the electric heating antifreezing are simultaneously started, so that the heat exchanger of the gas water heater can not be frozen, and the water inlet and outlet pipelines can not be frozen. Therefore, the appropriate anti-freezing working mode is determined according to the second detection temperature value of the environment where the gas water heater is located, the anti-freezing level is clear, freezing and frost cracking of pipelines of the gas water heater can be effectively prevented, meanwhile, the anti-freezing efficiency is high, and energy waste can be avoided.
The various modules in the upper antifreeze control system can be implemented in whole or in part by software, hardware, and combinations thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
The third technical problem is solved by the following technical scheme:
a gas water heater comprises the anti-freezing control system.
Compared with the background technology, the gas water heater of the invention has the following beneficial effects: the anti-freezing control system has the technical effects brought by the anti-freezing control system, and the beneficial effects are the same as those of the anti-freezing control system and are not repeated.
Drawings
FIG. 1 is a flow chart of a freeze protection method according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating entering a first antifreeze mode of an antifreeze method according to an embodiment of the present invention;
FIG. 3a is a flowchart illustrating entering a second antifreeze mode of the antifreeze method according to the embodiment of the present invention;
FIG. 3b is a flowchart illustrating entering a second antifreeze mode of the antifreeze method according to another embodiment of the present invention;
fig. 4 is a flowchart illustrating a third freeze prevention mode of operation in the anti-freezing method according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the description of the present invention, it should be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly connected" to another element, there are no intervening elements present.
In one embodiment, referring to fig. 1, a freeze protection method includes the following steps:
s110, acquiring a first detection temperature value on a pipeline of a heat exchanger and acquiring a second detection temperature value of the environment where the gas water heater is located;
s120, judging whether the first detection temperature value is smaller than a first temperature preset value (for example, 2 ℃);
when the first detected temperature value is smaller than the first preset temperature value, the step S130 is performed, and when the first detected temperature value is not smaller than the first preset temperature value, the step S121 is performed to maintain the standby operating mode.
S130, entering an anti-freezing working mode, judging whether a second detected temperature value is greater than a second preset temperature value (for example, 15 ℃), entering a step S200 if the second detected temperature value is greater than the second preset temperature value, entering a first anti-freezing working mode, starting warm air to be anti-frozen, and entering a step S140 if the second detected temperature value is not greater than the second preset temperature value (for example, 15 ℃);
s140, judging whether the second detected temperature value is larger than a third temperature preset value (for example, -5 ℃), if so, entering step S300, entering a second anti-freezing working mode, starting one of electric heating anti-freezing and combustion anti-freezing, and if not, entering step S400;
and S400, entering a third freeze prevention working mode, and starting electric heating freeze prevention and combustion freeze prevention.
Compared with the background technology, the antifreezing method of the invention has the following beneficial effects: when the environment temperature of the gas water heater is higher (for example, more than 15 ℃), the warm air can be used for antifreezing by fully utilizing high-temperature environment air, and at the moment, the electric heating antifreezing and combustion antifreezing can be avoided when not necessary, so that the energy is saved and the environment is protected; when the environment temperature of the gas water heater is low (for example, the temperature is between-5 and 15 ℃), the warm air anti-freezing effect can not be achieved, the anti-freezing capacity of the gas water heater can be ensured by utilizing electric heating anti-freezing or combustion anti-freezing, and the combustion anti-freezing or the electric heating anti-freezing can not be started synchronously when the temperature is unnecessary, so that the energy is saved, and the environment is protected; when the environment temperature of the gas water heater is extremely low (for example, not more than-5 ℃), the combustion antifreezing and the electric heating antifreezing are simultaneously started, so that the heat exchanger of the gas water heater can not be frozen, and the water inlet and outlet pipelines can not be frozen. Therefore, the appropriate anti-freezing working mode is determined according to the second detection temperature value of the environment where the gas water heater is located, the anti-freezing level is clear, freezing and frost cracking of pipelines of the gas water heater can be effectively prevented, meanwhile, the anti-freezing efficiency is high, and energy waste can be avoided.
In one embodiment, referring to fig. 2, when it is determined that the first anti-freeze operation mode is entered, after the step of starting the warm air anti-freeze, the method further includes:
s210, within a first preset time (for example, 2min) after the fan is started, acquiring a third detection temperature value on a pipeline of the heat exchanger;
s220, judging whether the third detected temperature value is not less than a fourth preset temperature value (for example, 12 ℃), if so, turning to S221, turning off the fan, enabling the gas water heater to enter a standby state, and if not, turning to S230;
s230, starting electric heating anti-freezing while keeping warm air anti-freezing, and acquiring a fourth detected temperature value on the pipeline of the heat exchanger within a second preset time (for example, 2min) after electric heating anti-freezing is started;
s240, judging whether the fourth detected temperature value is not less than a fifth preset temperature value (for example, 15 ℃), if so, turning to S241, turning off the fan and the electric heating device, enabling the gas water heater to enter a standby state, and if not, turning to S250;
s250, closing the electric heating for freezing prevention, starting combustion for freezing prevention, and acquiring a fifth detection temperature value on the pipeline of the heat exchanger within a third preset time (for example, 10S) for simultaneously starting combustion for freezing prevention;
s260, judging whether the fifth detected temperature value is not less than a sixth preset temperature value (for example, 20 ℃), if so, turning to S261, turning off the fan and the combustion device, enabling the gas water heater to enter a standby state, and if not, turning to S270;
and S270, closing the fan and the combustion device, and starting a freezing alarm action at the same time.
In one embodiment, referring to fig. 3a, when it is determined to enter the second anti-freeze operation mode, after the step of initiating one of electric heating anti-freeze and combustion anti-freeze, the method further includes:
s310a, acquiring a sixth detection temperature value on a pipeline of the heat exchanger in a fourth preset time after one step of electric heating anti-freezing and combustion anti-freezing is started;
s320a, determining whether the sixth detected temperature value is greater than a seventh preset temperature value (for example, 15 ℃), if so, performing step S321a, turning off the electric heating device or the combustion device, and performing a standby state, otherwise, performing step S330 a;
s330a, starting the other one of the electric heating antifreeze and the combustion antifreeze while keeping the other one of the electric heating antifreeze and the combustion antifreeze working, and acquiring a seventh detected temperature value on the pipeline of the heat exchanger within a fifth preset time of starting the other one of the electric heating antifreeze and the combustion antifreeze working;
s340a, determining whether the seventh detected temperature value is greater than an eighth preset temperature value, if so, going to step S341a, turning off the electric heating device and the combustion device and going to a standby state, otherwise, going to step S350 a;
and S350a, turning off the electric heating device and the combustion device and starting a freezing alarm action at the same time.
In another embodiment, referring to fig. 3b, when it is determined that the second anti-freeze operation mode is entered, the starting of the electric heating anti-freeze further includes, after the starting of the electric heating anti-freeze step:
s310b, acquiring a sixth detected temperature value on the pipeline of the heat exchanger within a fourth preset time (for example, 5min) after the electric heating anti-freezing step is started;
s320b, determining whether the sixth detected temperature value is greater than a seventh preset temperature value (for example, 15 ℃), if so, going to step S321b, turning off the electric heating device and going to a standby state, otherwise, going to step S330 b;
s330b, turning off the electric heating device, starting combustion antifreezing, and acquiring a seventh detected temperature value on the pipeline of the heat exchanger within a fifth preset time (for example, 10S) of starting combustion antifreezing simultaneously;
s340b, determining whether the seventh detected temperature value is greater than an eighth preset temperature value (for example, 20 ℃), if so, performing step S341b, turning off the combustion apparatus, and performing a standby state, otherwise, performing step S350 b;
and S350b, starting a freezing alarm action while closing the combustion device.
In one embodiment, referring to fig. 4, when it is determined that the third freeze prevention mode is entered, the method further includes the following steps after the electric heating freeze prevention and combustion freeze prevention steps are started:
s410, acquiring an eighth detected temperature value on a pipeline of the heat exchanger within a sixth preset time (for example, 2min) after the electric heating anti-freezing and combustion anti-freezing steps are started;
s420, judging whether the eighth detection temperature value is larger than a ninth preset temperature value (for example, 30 ℃), if so, going to step S421, turning off the electric heating device and the combustion device and going to a standby state, and if not, going to step S430;
and S430, turning off the electric heating device and the combustion device and starting a freezing alarm action at the same time.
In one embodiment, the anti-freeze method further comprises the steps of: and judging whether the gas water heater is in a standby working mode, and determining to enter an anti-freezing working mode or maintain the standby working mode according to the first detection temperature value when the gas water heater is judged to be in the standby working mode. Therefore, only when the gas water heater is in the standby working mode, the gas water heater is determined to enter the anti-freezing working mode or maintain the standby working mode according to the first detection temperature value; when the gas water heater is in a shower working mode, anti-freezing treatment is not needed.
Further, the method for judging whether the gas water heater is in the standby working mode comprises the following steps:
acquiring the water flow on a water inlet and outlet pipeline of a heat exchanger;
and judging whether the water flow is greater than a starting set value, if so, indicating that the gas water heater is in a shower working mode, and if not, indicating that the gas water heater is in a standby working mode.
In the above embodiment, the combustion apparatus includes a plurality of fire banks, and the combustion apparatus operates at a minimum load when operating in the combustion freeze-protected mode of operation.
In addition, the time length of each combustion antifreezing is not more than 10s, so that the heat exchanger can be prevented from being burnt out due to overlong heating time, and a user can be prevented from being scalded when a user boils for bathing after the combustion antifreezing is started.
In the combustion freeze-protected mode of operation, the combustion mode may be continuous or intermittent until the target temperature is reached. The continuous combustion mode is that the combustion device is started, combustion is stopped until the temperature value detected on the pipeline of the heat exchanger is greater than a sixth preset temperature value, and the device enters a standby mode; the intermittent combustion mode is to start the combustion device for a period of time, then close the combustion device, start the combustion device again after a period of time, close the combustion device again after a period of time, repeat the process until the temperature value detected on the pipeline of the heat exchanger is greater than the sixth preset temperature value, stop the combustion, and enter the standby mode.
In addition, the freezing alarm action is to send out an alarm command through the main controller, display a fault code on a display of the gas water heater, and send out on-line alarm information to a user through the WIFI module.
In northern areas, heating measures are taken in winter, the indoor temperature is often high, and at the moment, the warm air anti-freezing has a large exertion space, and the energy-saving and environment-friendly effects are achieved. When the indoor temperature is very low, the gas water heater is started by adopting combustion antifreezing and electric heating antifreezing at the same time, so that the heat exchanger of the gas water heater can be prevented from being frozen, and the water inlet and outlet pipelines can be prevented from being frozen.
In one embodiment, an anti-freeze control system includes an acquisition module, a determination module, and an execution module. The acquisition module is used for acquiring a first detection temperature value on a pipeline of the heat exchanger and acquiring a second detection temperature value of the environment where the gas water heater is located. The determining module is used for determining to enter an anti-freezing working mode or maintain a standby working mode according to the first detected temperature value, and is also used for determining to enter the first anti-freezing working mode, the second anti-freezing working mode or the third anti-freezing working mode according to the second detected temperature value when determining to enter the anti-freezing working mode. The execution module is used for starting warm air anti-freezing when the first anti-freezing working mode is determined to be entered. The execution module is further configured to initiate one of electrical heating freeze protection and combustion freeze protection when it is determined to enter the second freeze protection mode of operation. And the execution module is also used for starting electric heating anti-freezing and combustion anti-freezing when the third anti-freezing working mode is determined to be entered.
Compared with the background technology, the antifreezing control system has the following beneficial effects:
when the environment temperature of the gas water heater is higher (for example, more than 15 ℃), the warm air can be used for antifreezing by fully utilizing high-temperature environment air, and at the moment, the electric heating antifreezing and combustion antifreezing can be avoided when not necessary, so that the energy is saved and the environment is protected; when the environment temperature of the gas water heater is low (for example, the temperature is between-5 and 15 ℃), the warm air anti-freezing effect can not be achieved, the anti-freezing capacity of the gas water heater can be ensured by utilizing electric heating anti-freezing or combustion anti-freezing, and the combustion anti-freezing or the electric heating anti-freezing can not be started synchronously when the temperature is unnecessary, so that the energy is saved, and the environment is protected; when the environment temperature of the gas water heater is extremely low (for example, not more than-5 ℃), the combustion antifreezing and the electric heating antifreezing are simultaneously started, so that the heat exchanger of the gas water heater can not be frozen, and the water inlet and outlet pipelines can not be frozen. Therefore, the appropriate anti-freezing working mode is determined according to the second detection temperature value of the environment where the gas water heater is located, the anti-freezing level is clear, freezing and frost cracking of pipelines of the gas water heater can be effectively prevented, meanwhile, the anti-freezing efficiency is high, and energy waste can be avoided.
The various modules in the upper antifreeze control system can be implemented in whole or in part by software, hardware, and combinations thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a gas water heater comprises the anti-freezing control system of any one of the above embodiments.
Compared with the background technology, the gas water heater of the invention has the following beneficial effects: the anti-freezing control system has the technical effects brought by the anti-freezing control system, and the beneficial effects are the same as those of the anti-freezing control system and are not repeated.
It should be explained that the gas water heater adopts the anti-freezing method which includes: the anti-downdraft joint is anti-freezing, warm air anti-freezing, electric heating anti-freezing and combustion anti-freezing. The anti-downdraft joint is anti-freezing, the warm air is anti-freezing, the electric heating is anti-freezing and the combustion is anti-freezing respectively as follows:
the anti-backflow connector is anti-freezing, when a fan of the gas water heater is closed, the anti-backflow plate in the anti-backflow connector is in a closed state under the action of gravity, the opening of the smoke tube can be lower or even zero, and cold air outside the gas water heater can be effectively delayed or blocked from entering the gas water heater, so that the anti-freezing effect is achieved.
The hot air prevents frostbite, because prevent the joint of downdraft and can't seal the tobacco pipe completely, therefore will always some cold air enter the gas heater through the tobacco pipe. And the northern area winter indoor heating, therefore the ambient temperature of gas heater installation is probably higher, only starts gas heater's fan this moment, with inside warm air suction gas heater around, the low temperature surplus water in the heating tube, the warm air passes through the flue after the heat transfer and discharges outdoor, blocks outdoor cold air and flows backward simultaneously to can play frost-proof effect.
The electric heating is frostproofing, and electric heater unit specifically can establish ties by a plurality of electric heating rod and constitute, and the electric heating rod is installed on gas heater's business turn over water piping and the pipeline outside heat exchanger, and main control unit can start through controlling electric heater unit to heat exchanger's pipeline and business turn over water piping, avoid intraductal water to freeze, thereby play frost-proof effect.
The combustion is prevented frostbite, and gas heater itself has burner, and when burner started, the high temperature flue gas that the burning produced heats the low temperature surplus water in the heat exchanger pipe, through the flue discharge outdoor, blocks outdoor cold air and flows backward simultaneously, because the heat that the burning produced is great, can play frost-proof effect effectively.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. An anti-freezing method is characterized by comprising the following steps:
acquiring a first detection temperature value on a pipeline of a heat exchanger and a second detection temperature value of the environment where the gas water heater is located;
determining to enter an anti-freezing working mode or maintain a standby working mode according to the first detected temperature value;
if the anti-freezing working mode is determined to be entered, entering a first anti-freezing working mode, a second anti-freezing working mode or a third anti-freezing working mode according to the second detected temperature value;
when the first anti-freezing working mode is determined to be entered, starting warm air anti-freezing;
when the second anti-freezing working mode is determined to be entered, starting one of electric heating anti-freezing and combustion anti-freezing;
when the third freeze prevention working mode is determined to be entered, electric heating freeze prevention and combustion freeze prevention are started;
when the first anti-freezing working mode is determined to be entered, after the step of starting warm air anti-freezing, the method further comprises the following steps:
acquiring a third detection temperature value on a pipeline of the heat exchanger within a first preset time after the fan is started, and determining to turn off the fan and enter a standby state or start electric heating for freeze prevention while keeping warm air for freeze prevention according to the third detection temperature value;
if the fact that the electric heating and the anti-freezing are started while the warm air is kept anti-freezing is determined, a fourth detection temperature value on the pipeline of the heat exchanger is obtained within a second preset time after the electric heating and the anti-freezing are started simultaneously, and the fan and the electric heating device are determined to be turned off and enter a standby state according to the fourth detection temperature value, or the electric heating and the anti-freezing are turned off and the combustion and the anti-freezing are started simultaneously;
and if the fact that the electric heating is turned off and the combustion is simultaneously started for freezing prevention is determined, acquiring a fifth detection temperature value on a pipeline of the heat exchanger within a third preset time for simultaneously starting the combustion and freezing prevention, and determining to turn off the fan and the combustion device and enter a standby state or turn off the fan and the combustion device and simultaneously start a freezing alarm action according to the fifth detection temperature value.
2. The antifreeze method according to claim 1, further comprising, after said step of initiating one of electric heating antifreeze and combustion antifreeze when it is determined to enter the second antifreeze mode of operation:
acquiring a sixth detection temperature value on a pipeline of the heat exchanger within a fourth preset time after the step of starting one of electric heating freeze protection and combustion freeze protection, determining to turn off an electric heating device or a combustion device and enter a standby state according to the sixth detection temperature value, or starting the other one of electric heating freeze protection and combustion freeze protection while keeping the other one of electric heating freeze protection and combustion freeze protection working;
and if the fact that the other one of the electric heating anti-freezing and the combustion anti-freezing is started while the other one of the electric heating anti-freezing and the combustion anti-freezing is kept working is determined, a seventh detection temperature value on a pipeline of the heat exchanger is obtained within a fifth preset time of the other one of the electric heating anti-freezing and the combustion anti-freezing is started simultaneously, and the fact that the electric heating device and the combustion device are turned off and enter a standby state or the electric heating device and the combustion device are turned off and a freezing alarm action is started simultaneously is determined according to the seventh detection temperature value.
3. The antifreeze method as set forth in claim 1, wherein said starting of the electric heating antifreeze when it is determined to enter the second antifreeze operation mode, and further comprising, after the starting of the electric heating antifreeze step:
acquiring a sixth detection temperature value on the pipeline of the heat exchanger within a fourth preset time after the step of starting the electric heating and anti-freezing, and determining to turn off the electric heating device and enter a standby state according to the sixth detection temperature value, or starting combustion and anti-freezing while turning off the electric heating device;
and if the fact that the electric heating device is turned off and the combustion is started for anti-freezing is determined, acquiring a seventh detection temperature value on a pipeline of the heat exchanger within a fifth preset time for starting the combustion for anti-freezing, and determining to turn off the combustion device and enter a standby state according to the seventh detection temperature value or to start a freezing alarm action while turning off the combustion device.
4. The antifreeze method according to claim 1, further comprising, for a sixth preset time after said initiating electric heating antifreeze and combustion antifreeze steps, the steps of, when it is determined that the third antifreeze mode of operation is entered:
and acquiring an eighth detection temperature value on a pipeline of the heat exchanger, determining to turn off the electric heating device and the combustion device and enter a standby state according to the eighth detection temperature value, or turning off the electric heating device and the combustion device and starting a freezing alarm action at the same time.
5. The antifreeze method according to any one of claims 1 to 4, further comprising the steps of: and judging whether the gas water heater is in a standby working mode, and determining to enter an anti-freezing working mode or maintain the standby working mode according to the first detection temperature value when the gas water heater is judged to be in the standby working mode.
6. The anti-freezing method as claimed in claim 5, wherein the method for determining whether the gas water heater is in the standby operation mode comprises the steps of:
acquiring the water flow on a water inlet and outlet pipeline of a heat exchanger;
and judging whether the water flow is greater than a starting set value, if so, indicating that the gas water heater is in a shower working mode, and if not, indicating that the gas water heater is in a standby working mode.
7. The antifreeze method according to any one of claims 1 to 4,
the specific method for determining to enter the anti-freezing working mode or maintain the standby working mode according to the first detected temperature value comprises the following steps: when the first detected temperature value is smaller than a first preset temperature value, entering an anti-freezing working mode; and when the first detection temperature is not less than the first temperature preset value, entering a standby maintenance working mode.
8. The antifreeze method according to any one of claims 1 to 4,
the specific method for determining to enter the first anti-freezing working mode, the second anti-freezing working mode or the third anti-freezing working mode according to the second detected temperature value comprises the following steps: when the second detected temperature value is larger than a second temperature preset value, entering a first anti-freezing working mode; when the second detected temperature value is larger than the third temperature preset value and not larger than the second temperature preset value, entering a second anti-freezing working mode; when the second detected temperature value is not greater than a third temperature preset value, entering a third freeze prevention working mode; and the second temperature preset value is greater than the third temperature preset value.
9. An antifreeze control system, comprising:
the acquisition module is used for acquiring a first detection temperature value on a pipeline of the heat exchanger and acquiring a second detection temperature value of the environment where the gas water heater is located;
the determining module is used for determining to enter an anti-freezing working mode or maintain a standby working mode according to the first detection temperature value, and determining to enter the first anti-freezing working mode, the second anti-freezing working mode or the third anti-freezing working mode according to the second detection temperature value when determining to enter the anti-freezing working mode;
the execution module is used for starting warm air anti-freezing when the first anti-freezing working mode is determined to be entered; the execution module is further used for starting one of electric heating anti-freezing and combustion anti-freezing when the second anti-freezing working mode is determined to be entered; the execution module is further used for starting electric heating anti-freezing and combustion anti-freezing when the third anti-freezing working mode is determined to be entered;
the acquisition module is further used for acquiring a third detection temperature value on the pipeline of the heat exchanger within a first preset time after the fan is started;
the determining module is also used for determining to turn off the fan and enter a standby state or start electric heating for freeze protection while keeping warm air for freeze protection according to the third detected temperature value;
the execution module is further used for acquiring a fourth detection temperature value on a pipeline of the heat exchanger within a second preset time after the electric heating is started for freeze prevention at the same time if the electric heating is started for freeze prevention while warm air is kept, and determining to turn off the fan and the electric heating device and enter a standby state according to the fourth detection temperature value, or turn off the electric heating for freeze prevention and start combustion for freeze prevention at the same time;
and the execution module is further used for acquiring a fifth detection temperature value on a pipeline of the heat exchanger within a third preset time for simultaneously starting combustion and freeze protection if the electric heating is determined to be turned off and freeze protection is simultaneously started, and determining to turn off the fan and the combustion device and enter a standby state or turn off the fan and the combustion device and start a freezing alarm action simultaneously according to the fifth detection temperature value.
10. A gas water heater comprising the antifreeze control system of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910418833.2A CN110195937B (en) | 2019-05-20 | 2019-05-20 | Anti-freezing method, anti-freezing control system and gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910418833.2A CN110195937B (en) | 2019-05-20 | 2019-05-20 | Anti-freezing method, anti-freezing control system and gas water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110195937A CN110195937A (en) | 2019-09-03 |
| CN110195937B true CN110195937B (en) | 2021-08-10 |
Family
ID=67752848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910418833.2A Active CN110195937B (en) | 2019-05-20 | 2019-05-20 | Anti-freezing method, anti-freezing control system and gas water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110195937B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114623599A (en) * | 2020-11-26 | 2022-06-14 | 宁波方太厨具有限公司 | Water heater and go out water control system, water supply system thereof |
| CN114151973A (en) * | 2021-11-02 | 2022-03-08 | 广东万和新电气股份有限公司 | Anti-freezing method and anti-freezing control device |
| CN114459159B (en) * | 2022-01-20 | 2024-03-12 | 广东万和新电气股份有限公司 | Water heater and anti-freezing control method thereof |
| CN114440469B (en) * | 2022-02-09 | 2023-03-28 | 宁波方太厨具有限公司 | Anti-freezing control method and system for water heater, gas water heater and medium |
| CN114484889A (en) * | 2022-02-17 | 2022-05-13 | 宁波方太厨具有限公司 | Anti-freezing control method and system for water heater, water heater and medium |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58219355A (en) * | 1982-06-15 | 1983-12-20 | Matsushita Electric Ind Co Ltd | Freezing preventing device of water heater |
| JPH05118664A (en) * | 1991-10-30 | 1993-05-14 | Noritz Corp | Preventing device for freezing of composite burner |
| KR100201593B1 (en) * | 1996-03-27 | 1999-06-15 | 강성모 | Plumbing for preventing freeze |
| JP2001304681A (en) * | 2000-04-26 | 2001-10-31 | Noritz Corp | Device for preventing freezing of hot-water apparatus |
| CN202149590U (en) * | 2011-06-30 | 2012-02-22 | 美的集团有限公司 | Anti-freezing forced-ventilated type gas water heater |
| CN202757269U (en) * | 2012-07-31 | 2013-02-27 | 青岛经济技术开发区海尔热水器有限公司 | Two-level freeze-proof gas water heater |
| CN202973561U (en) * | 2012-11-05 | 2013-06-05 | 中山华帝燃具股份有限公司 | Gas water heater with antifreezing function |
| CN105758001A (en) * | 2016-04-26 | 2016-07-13 | 艾欧史密斯(中国)热水器有限公司 | Igniting temperature control device of gas water heater |
| CN106500343A (en) * | 2016-10-13 | 2017-03-15 | 广东万家乐燃气具有限公司 | A kind of control method of central fuel gas water heating device |
| CN107367065A (en) * | 2016-05-12 | 2017-11-21 | 青岛经济技术开发区海尔热水器有限公司 | A kind of gas heater antifreeze using water pump and method |
| CN107367051A (en) * | 2016-05-12 | 2017-11-21 | 青岛经济技术开发区海尔热水器有限公司 | A kind of gas heater antifreeze using water pump and adding thermal resistance and method |
| CN107449155A (en) * | 2016-06-08 | 2017-12-08 | 能率(中国)投资有限公司 | Water heater anti-freezing structure and its control method |
| CN108302770A (en) * | 2018-01-18 | 2018-07-20 | 广东超人节能厨卫电器有限公司 | A kind of zero cold water fuel gas water heating system automatic freezing-protective method |
| CN109307368A (en) * | 2018-09-17 | 2019-02-05 | 广东万和新电气股份有限公司 | A kind of forced-ventilated gas water heater control method |
| CN208871832U (en) * | 2018-08-08 | 2019-05-17 | 广东万和新电气股份有限公司 | Gas heater with antifreeze function |
-
2019
- 2019-05-20 CN CN201910418833.2A patent/CN110195937B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58219355A (en) * | 1982-06-15 | 1983-12-20 | Matsushita Electric Ind Co Ltd | Freezing preventing device of water heater |
| JPH05118664A (en) * | 1991-10-30 | 1993-05-14 | Noritz Corp | Preventing device for freezing of composite burner |
| KR100201593B1 (en) * | 1996-03-27 | 1999-06-15 | 강성모 | Plumbing for preventing freeze |
| JP2001304681A (en) * | 2000-04-26 | 2001-10-31 | Noritz Corp | Device for preventing freezing of hot-water apparatus |
| CN202149590U (en) * | 2011-06-30 | 2012-02-22 | 美的集团有限公司 | Anti-freezing forced-ventilated type gas water heater |
| CN202757269U (en) * | 2012-07-31 | 2013-02-27 | 青岛经济技术开发区海尔热水器有限公司 | Two-level freeze-proof gas water heater |
| CN202973561U (en) * | 2012-11-05 | 2013-06-05 | 中山华帝燃具股份有限公司 | Gas water heater with antifreezing function |
| CN105758001A (en) * | 2016-04-26 | 2016-07-13 | 艾欧史密斯(中国)热水器有限公司 | Igniting temperature control device of gas water heater |
| CN107367065A (en) * | 2016-05-12 | 2017-11-21 | 青岛经济技术开发区海尔热水器有限公司 | A kind of gas heater antifreeze using water pump and method |
| CN107367051A (en) * | 2016-05-12 | 2017-11-21 | 青岛经济技术开发区海尔热水器有限公司 | A kind of gas heater antifreeze using water pump and adding thermal resistance and method |
| CN107449155A (en) * | 2016-06-08 | 2017-12-08 | 能率(中国)投资有限公司 | Water heater anti-freezing structure and its control method |
| CN106500343A (en) * | 2016-10-13 | 2017-03-15 | 广东万家乐燃气具有限公司 | A kind of control method of central fuel gas water heating device |
| CN108302770A (en) * | 2018-01-18 | 2018-07-20 | 广东超人节能厨卫电器有限公司 | A kind of zero cold water fuel gas water heating system automatic freezing-protective method |
| CN208871832U (en) * | 2018-08-08 | 2019-05-17 | 广东万和新电气股份有限公司 | Gas heater with antifreeze function |
| CN109307368A (en) * | 2018-09-17 | 2019-02-05 | 广东万和新电气股份有限公司 | A kind of forced-ventilated gas water heater control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110195937A (en) | 2019-09-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110195937B (en) | Anti-freezing method, anti-freezing control system and gas water heater | |
| KR101436842B1 (en) | Method for preventing freezing of heating pipe and hot-water pipe of boiler | |
| CN109307368B (en) | Control method of forced-ventilated type gas water heater | |
| CN112696800B (en) | Electric heater protection method and device of air conditioner, storage medium and air conditioner | |
| CN111365852A (en) | Automatic anti-freezing method for water heater and anti-freezing water heater | |
| CN209944770U (en) | Anti-freezing gas water heater | |
| CN108302770A (en) | A kind of zero cold water fuel gas water heating system automatic freezing-protective method | |
| JP2011149673A (en) | Solar heat hot water supply system | |
| JP2010507064A (en) | Methods for preventing condensation in boiler exhaust pipes | |
| CN109990486B (en) | Antifreezing method for gas water heater and antifreezing gas water heater | |
| CN210165589U (en) | Anti-freezing gas water heater | |
| CN203757993U (en) | Electromagnetic water heating furnace | |
| CN111664573A (en) | Anti-freezing control method and device for gas water heater | |
| CN106052115A (en) | Wall-mounted furnace and control method thereof | |
| CN205783722U (en) | Wall-hung boiler | |
| CN112902440B (en) | Heating and bathing dual-purpose furnace and bathing water outlet control method and system thereof | |
| JP6087241B2 (en) | Hot water heater | |
| GB2389891A (en) | Boiler control unit | |
| KR20150137571A (en) | Driving method a non-condensing of a boiler condensing | |
| JP6234387B2 (en) | Heat source equipment | |
| CN112944693A (en) | Anti-freezing control method for gas water heater and gas water heater | |
| JP2014173766A (en) | Heat source machine | |
| JP3171979B2 (en) | Circulating warm water heater | |
| JP2001304681A (en) | Device for preventing freezing of hot-water apparatus | |
| JP2793610B2 (en) | Prevention of freezing operation of forced circulation bath kettle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |