CN114857783B - Control method capable of setting different power output of heating and bathroom and heating water heater - Google Patents
Control method capable of setting different power output of heating and bathroom and heating water heater Download PDFInfo
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- CN114857783B CN114857783B CN202210539502.6A CN202210539502A CN114857783B CN 114857783 B CN114857783 B CN 114857783B CN 202210539502 A CN202210539502 A CN 202210539502A CN 114857783 B CN114857783 B CN 114857783B
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- output power
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 187
- 239000008236 heating water Substances 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 101
- 238000002485 combustion reaction Methods 0.000 claims description 22
- 238000004200 deflagration Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 90
- 238000001514 detection method Methods 0.000 description 6
- 238000003287 bathing Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/40—Control of fluid heaters characterised by the type of controllers
- F24H15/414—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based
- F24H15/421—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based using pre-stored data
- F24H15/429—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based using pre-stored data for selecting operation modes
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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
- F24H15/00—Control of fluid heaters
- F24H15/10—Control of fluid heaters characterised by the purpose of the control
- F24H15/174—Supplying heated water with desired temperature or desired range of temperature
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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
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/305—Control of valves
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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
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/345—Control of fans, e.g. on-off control
- F24H15/35—Control of the speed of fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention discloses a control method capable of setting different power outputs of heating and bathroom and a heating water heater thereof, the control method comprises the steps of obtaining a water flow signal fed back by a water flow sensor, if the water flow signal exists, starting a bathroom mode, executing a bathroom gear under the maximum bathroom output power, otherwise, starting a heating mode, and executing the heating gear under the maximum bathroom output power, wherein the maximum bathroom output power is larger than the maximum heating output power; after determining the execution mode, the ignition program is started to heat the system water to a set temperature range. According to the control method, different output powers of the heating and the bathroom are set, so that the output power of the heating stove can be changed according to the type of starting of the heating stove, the optimal power output state in use is achieved, the heating and the bathroom are matched with different powers, energy and gas can be saved more, and meanwhile the use comfort of a user can be improved.
Description
Technical Field
The invention relates to the technical field of intelligent control of gas heating water heaters, in particular to a control method capable of setting different power outputs of heating and bathroom and a gas heating water heater thereof.
Background
At present, the maximum heating output power of the gas heating water heater is the same as the maximum bathroom output power, and the heating output power and the bathroom output power are not controlled respectively. The power of the common gas heating stove is 18-36kW, and the living area of the common family is 90-150m 2 About, it is known that the area heat index of the house or office building is 70-105W/m based on the area heat index 2 It is more suitable, so that for ordinary families, the heating power can reach 18kW, and the requirements of most families can be basically met.
But when the heating stove is used for supplying domestic hot water, more power is required to meet the requirements, especially in northern areas. This results in the following problems:
1) Because the power required by the bathroom is larger than the heating required power, the heating and bathroom power are not controlled respectively in the prior art, and the maximum heating output is the same as the maximum heating output of the bathroom, so that the maximum heating output exceeds the power required by the actual heating, and when the bathroom is used for heating, the natural gas consumption is large and the energy is not saved.
2) Because the temperature difference in the north-south areas is large, the cold water temperature difference of ground water is large, and the wall-mounted boiler is required to have larger heat-generating water rate in the north, therefore, when a user is small in household type, when the low-power wall-mounted boiler is used, the heating requirement can be met, but the bathroom power is insufficient, the heat-generating water rate capability is insufficient, and the comfort is poor during bathing.
Disclosure of Invention
In order to overcome the defects of the prior art, one of the purposes of the invention is to provide a control method capable of setting different power outputs of heating and bathroom, which solves the above-mentioned traditional problems, and by setting the different power outputs of heating and bathroom, the control method not only can realize low-power heating, but also can provide larger living hot water generation requirements for users.
The second purpose of the invention is to provide a gas heating water heater adopting the control method capable of setting different power output of heating and bathroom.
One of the purposes of the invention is realized by adopting the following technical scheme:
a control method capable of setting different power outputs of heating and bathroom comprises the following steps:
s1: starting a gas heating water heater;
s2: acquiring a water flow signal fed back by a water flow sensor, if the water flow signal exists, starting a bathroom mode, executing a bathroom gear under the maximum bathroom output power, otherwise, starting a heating mode, and executing a heating gear under the maximum bathroom output power, wherein the maximum bathroom output power is larger than the maximum heating output power;
s3: after determining the execution mode, starting to execute an ignition program, and heating the system water according to the corresponding gear of the intelligent module to heat the system water to a set temperature range.
Preferably, in step S2, the specific operation steps of executing the bathroom file at the maximum bathroom output power are: and executing the fan rotating speed current value gear and the gas valve opening current value gear under the bathroom gear under the limitation of the maximum output power of the bathroom gear.
Preferably, in step S2, the specific operation steps of performing the heating stage at the maximum heating output power are: and under the limitation of the maximum output power of the heating gear, executing the fan rotating speed current value gear and the gas valve opening current value gear under the heating gear.
Preferably, in a heating mode or a bathroom mode, the fan comprises a constant speed fan, a two-gear variable speed fan and an infinitely variable speed fan;
when the fan is a constant-speed fan, the fan rotating speed and current value gear of the fan is the same in heating or bathroom modes, and the maximum current value gear of the gas valve opening in bathroom is more than the maximum current value gear of the gas valve opening in heating;
when the fan is a two-gear variable speed fan, executing the high-gear rotating speed of the fan when the bathroom mode is started, and executing the low-gear rotating speed of the fan when the heating mode is started;
when the fan is an stepless speed regulation fan, the maximum current value gear of the fan rotating speed in the bathroom mode is larger than that in the heating mode.
Preferably, between step S1 and step S2, S12 is further included:
and acquiring the target temperature of the bathroom and the target temperature of heating.
Preferably, S13 is further included between step S1 and step S2:
obtaining the maximum output power of the bathroom and the maximum output power of heating;
calculating the maximum current value gear of the bathroom fan and the maximum current value gear of the bathroom gas valve in the bathroom mode according to the maximum output power of the bathroom;
and calculating the maximum current value gear of the heating fan and the maximum current value gear of the heating gas valve in the heating mode according to the maximum heating output power.
Preferably, in step S3, when the bathroom mode is executed, a frequency signal fed back by the water flow sensor is obtained, and the bathroom water flow is calculated; the bathroom water outlet temperature fed back by the bathroom water outlet NTC is obtained, and the bathroom water outlet temperature is compared with the bathroom target temperature;
when the bathroom water outlet temperature is lower than the bathroom target temperature and the bathroom water flow is higher than rated water flow of 1/2, executing the fan rotating speed and the gas valve opening under the maximum output power of the bathroom, and performing high-fire combustion;
when the bathroom water outlet temperature is lower than the bathroom target temperature and the bathroom water flow is lower than the rated water flow of 1/2, executing the fan rotating speed and the gas valve opening at the maximum bathroom output power of 2/3 to perform middle fire combustion;
when the bathroom outlet water temperature is higher than or close to the bathroom target temperature, executing the fan rotating speed and the gas valve opening under the bathroom output power corresponding to the bathroom outlet water temperature, and performing small fire combustion.
Preferably, in step S3, when the heating mode is executed, a heating water outlet temperature fed back by the heating water outlet NTC or a heating water inlet temperature fed back by the heating water inlet NTC is obtained;
when the heating water outlet temperature or the heating water inlet temperature is lower than the heating target temperature, executing the fan rotating speed and the gas valve opening degree under the maximum heating output power to perform high-fire combustion;
when the heating water outlet temperature or the heating water inlet temperature is higher than or close to the heating target temperature, executing the fan rotating speed and the gas valve opening under the heating output power corresponding to the heating water outlet temperature or the heating water inlet temperature, and performing small fire combustion.
Preferably, step S3 further comprises S4:
acquiring whether to release the mode signal; if the mode is the release mode, the gas valve is closed, the residual air and gas in the combustion chamber are purged after the fan, the deflagration is prevented, and the water pump is stopped after the delay operation; otherwise, the operation of the steps is continuously executed, and the operation is maintained.
The second purpose of the invention is realized by adopting the following technical scheme:
the utility model provides a gas heating water heater, includes stove body, control unit, fan, gas valve and detecting element, control unit includes intelligent module, intelligent module is used for carrying out the gear control at bathroom maximum output power and heating maximum output power, control unit all with fan, gas valve, detecting element electric connection, detecting element includes heating water inlet NTC, heating water outlet NTC, bathroom water outlet NTC and rivers sensor, control unit still include foretell can set up heating and bathroom different power output's control method.
Compared with the prior art, the invention has the beneficial effects that:
according to the control method, different output powers of the heating and the bathroom are set, so that the output power of the heating stove can be changed according to the starting type of the heating stove, the optimal power output state in use is achieved, the heating and the bathroom are matched with different powers, energy and gas can be saved more, and meanwhile the use comfort of a user can be improved.
The control method of the invention enables the blower and the gas valve to have different maximum current values during the heating function or the bathroom function by limiting the maximum output power of the bathroom file and the heating file, wherein the maximum current value of the blower and the gas valve of the heating function is smaller than the maximum current value of the blower and the gas valve of the Yu Wei bathroom function; when the heating function of the heating furnace is operated, the controller can give the current value of the fan and the heating function of the gas valve, limit the maximum output power of heating to ensure that the operation power of the heating furnace meets the heating requirement, and avoid the problem that the gas consumption is not energy-saving greatly because the heating power exceeds the actual requirement power during the operation heating; when the heating stove operates the bath function, the controller gives the current value of the fan and the gas valve bath function, so that the heating stove can operate with the configured maximum power when the bath function is started; therefore, not only can low-power heating be realized, but also a larger demand for generating the hot water can be provided for users.
Drawings
FIG. 1 is a flow chart I of a control method capable of setting different power outputs of heating and bathroom according to the invention, wherein a fan is a constant-speed fan;
fig. 2 is a second flowchart of a control method capable of setting different power outputs of heating and bathroom according to the present invention, wherein the fan is a two-gear variable speed fan or an infinitely variable speed fan.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
In the description of the present invention, it should 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 a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the description of the present invention, it will 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.
Referring to fig. 1 and 2, a flowchart of a control method for setting different power outputs of heating and bathroom according to a preferred embodiment of the invention is shown, the control method comprises the following steps:
s1: starting the gas heating water heater, performing self-checking and verifying whether the starting condition is met, if not, starting a safety protection program, entering a standby state and triggering an alarm, and if so, entering the next step;
in the step, after the gas heating water heater is started, after a starting signal is received in the system, preliminary self-checking is performed, such as whether temperature and pressure detection equipment is in a normal detection range, whether the water level of the heating water channel system is in a normal range or not, and when the condition is found to be unsatisfied, starting is forbidden and an alarm message is sent out so as to inform a user of processing.
S2: acquiring a bathroom target temperature and a heating target temperature;
in this step, a target bathroom temperature is input to a panel of the controller, and the target bathroom temperature is heated to the set temperature in the bathroom mode. The heating target temperature is inputted to the panel of the controller, and the heating target temperature is heated to the set temperature in the heating mode. This step can also be skipped, with the internal settings being the main, and no user settings are required.
S3: obtaining the maximum output power of the bathroom and the maximum output power of heating; calculating the maximum current value gear of the bathroom fan and the maximum current value gear of the bathroom gas valve in the bathroom mode according to the maximum output power of the bathroom; and calculating the maximum current value gear of the heating fan and the maximum current value gear of the heating gas valve in the heating mode according to the maximum heating output power, wherein the maximum bathroom output power is larger than the maximum heating output power. In this embodiment, the maximum output power of the bathroom is (1.2-2) times the maximum output power of heating.
In this step, it can be understood that the maximum output power of the bathroom=the maximum power of the fan at the time of the bathroom+the maximum power of the gas valve at the time of the bathroom, and the maximum output power of the fan and the gas valve can be controlled by controlling the current values of the fan and the gas valve according to p=u×i because the voltage is the rated voltage, so that the maximum output power of the bathroom is obtained. Similarly, the maximum heating output power=the maximum fan power during heating+the maximum power of the gas valve during heating. Through this setting, the user can set for bathroom or the maximum output power of heating (but can not surpass heating stove self's maximum rated power, generally can be according to the biggest parameter value of factory setting heating and bathroom mode, go to suggestion setting) according to building area and use comfort level requirement, when satisfying heating or bathroom demand, saves gas, can improve bathing travelling comfort simultaneously.
Similarly, it is understood that the maximum fan current value gear and the maximum gas valve current value gear of the heating or bathroom can be internally set according to the region where the product is used when the heating stove leaves the factory, without being reset by a user, or the step setting is skipped, so that the heating or bathroom can be operated with the internally set maximum fan current value gear and the gas valve current value gear.
S4: acquiring a water flow signal fed back by a water flow sensor, if the water flow signal exists, starting a bathroom mode, executing a bathroom gear under the maximum output power of the bathroom, and executing a rotating speed current value gear of a fan and an opening current value gear of a gas valve under the bathroom gear under the limitation of the maximum output power of the bathroom gear, otherwise, starting a heating mode, executing a heating gear under the maximum output power of heating, and executing the rotating speed current value gear of the fan and the opening current value gear of the gas valve under the heating gear under the limitation of the maximum output power of the heating gear, wherein the bathroom maximum output power is larger than the heating maximum output power;
in this step, a start mode (bathroom mode or heating mode) is determined by detecting whether there is a water flow signal, and according to the corresponding mode, the controller performs a fan current value gear under a fan maximum current value gear and a gas valve current value gear under a gas valve maximum current value gear in the corresponding modes. The opening of the gas valve is related to the rotating speed of the fan, the larger the rotating speed of the fan is, the smaller the opening of the gas valve is, so that proper gas and air are conveyed to be mixed by matching with the fan, and the relation between the rotating speed of the fan and the opening of the gas valve is input into a controller of the water heater in advance.
If in the bathroom mode, the maximum rotating speed of the fan under the current value is started under the maximum current value of the bathroom, and the maximum opening of the gas valve under the current value is started under the maximum current value of the bathroom, so that the maximum output power of the bathroom is controlled. It is understood that in the bathroom mode, the maximum output power of the bathroom is limited, and the rotation speed of the fan and the opening of the gas valve are adjusted according to the temperature of the bathroom water under the condition that the output power of the bathroom does not exceed the maximum output power. When the temperature of the bathroom water is lower than the set temperature, the fan rotates at the maximum rotation speed of the maximum current gear, and the gas valve is opened at the maximum opening of the maximum current gear, so that the heating stove is ensured to burn with big fire under limited maximum power, the water with low Wen Weiyu can be heated up quickly, and the set maximum power value of the bathroom is not exceeded. When the temperature of the bathroom water is higher than or equal to or close to the set temperature, the fan rotates at a rotating speed lower than the gear of the maximum current value, the gas valve is opened at an opening lower than the gear of the maximum current value, namely, the gas valve is regulated according to the temperature difference (can be controlled according to an original temperature control mode), and the gas valve is changed from high-fire combustion to low-fire combustion so as to maintain the set temperature value, so that the bathroom water temperature has better comfort during bathing. When the water heater operates the bathroom function, the controller gives the current value of the fan and the gas valve bathroom function, so that the water heater can operate with the maximum power configured by the water heater when the bathroom function is started; therefore, not only can low-power heating be realized, but also a larger demand for generating the hot water can be provided for users.
If in heating mode, the fan starts the maximum rotation speed of the fan under the maximum heating current value, and the gas valve starts the maximum opening of the gas valve under the maximum heating current value, thereby controlling the maximum output power of heating. It is understood that in the heating mode, the maximum output power of heating is limited, and the fan rotation speed and the opening of the gas valve are adjusted according to the temperature of heating water under the condition that the output power of heating does not exceed the maximum output power. When the water heater operates the heating function, the controller can give the current value of the fan and the gas valve heating function, limit the maximum output power of heating, so that the operation power of the water heater meets the heating requirement, and the problem that the gas consumption is not energy-saving greatly due to the fact that the heating power exceeds the actual requirement power during operation heating is avoided.
In one embodiment, the fans comprise a constant speed fan, a two-gear variable speed fan and an infinitely variable speed fan.
As shown in fig. 1, when the fan is a constant-speed fan, the constant-speed fan means that the fan has only one rotating speed, the rotating speeds of the fan are the same in a heating or bathroom mode, only the current value of the gas valve in the corresponding starting mode is executed in the program, and the maximum opening of the gas valve is controlled by setting the current values of the gas valve in the two modes, so that the maximum output power of heating and bathroom is controlled, namely, the maximum power of the fan in bathroom=the maximum power of the fan in heating, the maximum power of the gas valve in bathroom > the maximum power of the gas valve in heating or the maximum current value gear of the opening of the gas valve in bathroom > the maximum current value gear of the opening of the gas valve in heating.
As shown in fig. 2, when the fan is a two-gear speed-changing fan, the two-gear speed-changing fan can output two rotating speeds, and when the bathroom mode is started, the controller executes the high-gear rotating speed of the fan and the current value gear with larger opening of the gas valve; when the heating mode is started, the controller executes a low-gear rotating speed of the fan and a current value gear with lower opening degree of the gas valve, namely the fan rotating speed current value gear is divided into a fan rotating speed current value of a high gear and a fan rotating speed current value of a low gear,
when the fan is a stepless speed regulation fan, the speed of the stepless speed regulation fan can be changed along with the change of the current value, the bathroom mode controller is started to execute the current value of the fan and the gas valve in the bathroom gear, and the heating mode controller is started to execute the current value of the fan and the gas valve in the heating gear; the fan rotating speed and the opening degree control of the gas valve are regulated by giving current values of the fan and the gas valve under corresponding modes to the two mode controllers of heating and bathroom, so that the maximum output power of heating and bathroom can be respectively controlled; the maximum current value gear of the fan rotating speed in the bathroom mode is generally larger than that in the heating mode.
S5: after determining the execution mode, starting to execute an ignition program, and heating the system water according to the corresponding gear of the intelligent module and the acquired data to heat the system water to a set temperature range.
In this step, the ignition program: and the water pump, the fan, the gas valve and the ignition module are sequentially executed, and after successful ignition, the system water (heating water or bathroom water) is heated.
The specific operation steps of the method are as follows:
s50: when the bathroom mode is executed, a frequency signal fed back by a water flow sensor is obtained, and the water flow of the bathroom is calculated; the bathroom water outlet temperature fed back by the bathroom water outlet NTC is obtained, and the bathroom water outlet temperature is compared with the bathroom target temperature; when the bathroom water outlet temperature is lower than the bathroom target temperature and the bathroom water flow is higher than rated water flow of 1/2, executing the fan rotating speed and the gas valve opening under the maximum output power of the bathroom, and performing high-fire combustion; when the bathroom water outlet temperature is lower than the bathroom target temperature and the bathroom water flow is lower than the rated water flow of 1/2, executing the fan rotating speed and the gas valve opening at the maximum bathroom output power of 2/3 to perform middle fire combustion; when the bathroom outlet water temperature is higher than or close to the bathroom target temperature (such as bathroom outlet water temperature=bathroom target temperature (+ -) (2 ℃ -5 ℃)), the fan rotating speed and the gas valve opening degree under the bathroom output power corresponding to the bathroom outlet water temperature (the bathroom output power is smaller than Yu Weiyu maximum output power) are executed, the small fire combustion is carried out, and the combustion under the bathroom target temperature is maintained.
In this step, the relationship between the frequency and the flow rate in the water flow sensor adopts an empirical formula of the pulse signal frequency: f=8.1q -3 Wherein f: pulse signal frequency, H 2 The method comprises the steps of carrying out a first treatment on the surface of the q: water flow rate, L/min; according to the detection of water flow and bathroom outlet water temperature, different bathroom output power changes are regulated, so that the outlet water temperature is stable, meanwhile, the power section is not changed by the inlet water temperature, and the high-power bathroom requirement is met.
S51: when a heating mode is executed, acquiring heating water outlet temperature fed back by heating water outlet NTC or heating water inlet temperature fed back by heating water inlet NTC; when the heating water outlet temperature or the heating water inlet temperature is lower than the heating target temperature, executing the fan rotating speed and the gas valve opening degree under the maximum heating output power to perform high-fire combustion; when the heating water outlet temperature or the heating water inlet temperature is higher than or close to the heating target temperature [ such as heating water outlet temperature or heating water inlet temperature=heating target temperature (+ -) (2 ℃ -5 ℃) ], the fan rotating speed and the gas valve opening degree under the heating output power corresponding to the heating water outlet temperature or the heating water inlet temperature (the heating output power is smaller than the heating maximum output power) are executed, the small fire combustion is carried out, and the heating target temperature combustion is maintained.
S6: acquiring whether to release the mode signal according to the execution requirement of a user; if the mode is the release mode, the gas valve is closed, residual air and gas in the combustion chamber are purged after the fan, deflagration is prevented, and the water pump stops after delayed operation (for example, delay time is 1-3 min); otherwise, the operation of the steps is continuously executed, and the operation is maintained.
In another embodiment, the invention further provides a gas heating water heater, which comprises a heater body, a control unit, a fan, a gas valve, an igniter, a circulating water pump, a burner, a plate heat exchanger and a detection unit, wherein the control unit comprises an intelligent module, the intelligent module is used for executing gear control of the maximum output power of the bathroom and the maximum output power of the heating, the control unit is electrically connected with the fan, the gas valve, the detection unit, the igniter and the circulating water pump, the detection unit comprises a heating water inlet NTC, a heating water outlet NTC, a bathroom water outlet NTC and a water flow sensor, and the control unit further comprises the control method capable of setting different power outputs of the heating and the bathroom.
When the bathroom is in use, when bathroom demands exist, bathroom water outlet NTC collects bathroom water outlet temperature, and the maximum output power fan rotating speed and the gas valve opening degree under the bathroom mode are matched according to the current water outlet temperature, different maximum current values are respectively given to the heating fan and the gas valve with bathroom functions in a controller program, wherein the maximum current values of the heating fan and the gas valve are smaller than the maximum current value of the bathroom. When the heating function of the heating stove is operated, the controller can give the current value of the fan and the gas valve heating function, limit the maximum output power of heating to enable the operation power to be more in line with the heating requirement, and avoid the problem that the gas consumption is not energy-saving greatly due to the fact that the heating power exceeds the actual requirement power when the heating stove is operated. When the heating stove operates the bath function, the controller gives the current value of the fan and the gas valve bath function, so that the heating stove can operate with the configured maximum power when the bath function is started; therefore, not only can low-power heating be realized, but also a larger demand for generating the hot water can be provided for users.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (3)
1. The control method capable of setting different power outputs of heating and bathroom is characterized by comprising the following steps:
s1: starting a gas heating water heater;
s12: acquiring a bathroom target temperature and a heating target temperature;
s13: obtaining the maximum output power of the bathroom and the maximum output power of heating; the maximum output power of the bathroom or the maximum output power of the heating does not exceed the maximum rated power of the gas heating water heater;
according to the maximum bathroom output power, the maximum bathroom output power=the maximum bathroom fan power+the maximum bathroom gas valve power, and then according to P=U×I, calculating the maximum bathroom fan current value gear and the maximum bathroom gas valve current value gear in a bathroom mode;
according to the maximum heating output power, the maximum heating output power=the maximum fan power during heating+the maximum gas valve power during heating, and then according to P=U×I, calculating the maximum current value gear of the heating fan and the maximum current value gear of the heating gas valve in a heating mode;
s2: acquiring a water flow signal fed back by a water flow sensor, if the water flow signal exists, starting a bathroom mode, executing a bathroom gear under the maximum bathroom output power, otherwise, starting a heating mode, and executing a heating gear under the maximum bathroom output power, wherein the maximum bathroom output power is larger than the maximum heating output power;
the specific operation steps of executing the bathroom shelves under the maximum bathroom output power are as follows: executing a fan rotating speed current value gear and a gas valve opening current value gear under the bathroom gear under the limitation of the maximum output power of the bathroom gear; the maximum output power of the bathroom is 1.2-2 times of the maximum output power of heating;
the specific operation steps of executing the heating gear under the maximum heating output power are as follows: under the limitation of the maximum output power of the heating gear, executing a fan rotating speed current value gear and a gas valve opening current value gear under the heating gear;
in a heating mode or a bathroom mode, the fans comprise a constant speed fan, a two-gear variable speed fan and an infinitely variable speed fan;
when the fan is a constant-speed fan, the fan rotating speed and current value gear of the fan is the same in heating or bathroom modes, and the maximum current value gear of the gas valve opening in bathroom is more than the maximum current value gear of the gas valve opening in heating;
when the fan is a two-gear variable speed fan, executing the high-gear rotating speed of the fan when the bathroom mode is started, and executing the low-gear rotating speed of the fan when the heating mode is started;
when the fan is an stepless speed regulation fan, the maximum current value gear of the fan rotating speed in the bathroom mode is larger than the maximum current value gear of the fan rotating speed in the heating mode;
s3: after determining the execution mode, starting to execute an ignition program, and heating the system water according to the corresponding gear of the intelligent module to heat the system water to a set temperature range;
when the bathroom mode is executed, a frequency signal fed back by a water flow sensor is obtained, and the water flow of the bathroom is calculated; the bathroom water outlet temperature fed back by the bathroom water outlet NTC is obtained, and the bathroom water outlet temperature is compared with the bathroom target temperature;
when the bathroom water outlet temperature is lower than the bathroom target temperature and the bathroom water flow is higher than rated water flow of 1/2, executing the fan rotating speed and the gas valve opening under the maximum output power of the bathroom, and performing high-fire combustion;
when the bathroom water outlet temperature is lower than the bathroom target temperature and the bathroom water flow is lower than the rated water flow of 1/2, executing the fan rotating speed and the gas valve opening at the maximum bathroom output power of 2/3 to perform middle fire combustion;
when the bathroom outlet water temperature is higher than or close to the bathroom target temperature, executing the fan rotating speed and the gas valve opening under the bathroom output power corresponding to the bathroom outlet water temperature to perform small fire combustion;
when a heating mode is executed, acquiring heating water outlet temperature fed back by heating water outlet NTC or heating water inlet temperature fed back by heating water inlet NTC;
when the heating water outlet temperature or the heating water inlet temperature is lower than the heating target temperature, executing the fan rotating speed and the gas valve opening degree under the maximum heating output power to perform high-fire combustion;
when the heating water outlet temperature or the heating water inlet temperature is higher than or close to the heating target temperature, executing the fan rotating speed and the gas valve opening under the heating output power corresponding to the heating water outlet temperature or the heating water inlet temperature, and performing small fire combustion.
2. The method for controlling different power outputs of heating and bathroom according to claim 1, wherein step S3 further comprises S4:
acquiring whether to release the mode signal; if the mode is the release mode, the gas valve is closed, the residual air and gas in the combustion chamber are purged after the fan, the deflagration is prevented, and the water pump is stopped after the delay operation; otherwise, the operation of the steps is continuously executed, and the operation is maintained.
3. The utility model provides a gas heating water heater, includes stove body, control unit, fan, gas valve and detecting element, the control unit includes intelligent module, intelligent module is used for carrying out the gear control at bathroom maximum output power and heating maximum output power, control unit all with fan, gas valve, detecting element electric connection, detecting element includes heating water inlet NTC, heating water outlet NTC, bathroom water outlet NTC and rivers sensor, its characterized in that, control unit still includes the control method that can set up heating and bathroom different power output according to any one of claims 1 or 2.
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| CN104807067A (en) * | 2014-01-24 | 2015-07-29 | 樱花卫厨（中国）股份有限公司 | Intelligent control method for combustion method and draught fan in bathroom heating equipment |
| CN105972828A (en) * | 2016-05-24 | 2016-09-28 | 万家乐热能科技有限公司 | Power control method for fuel gas heating water heater |
| CN110594855A (en) * | 2019-07-16 | 2019-12-20 | 华帝股份有限公司 | Control method of gas heating stove with variable bathing heat load and gas heating stove |
| CN111457577A (en) * | 2019-01-21 | 2020-07-28 | 上海水护盾健康科技有限公司 | Heating and bathroom dual-function gas heating water heater and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104807067A (en) * | 2014-01-24 | 2015-07-29 | 樱花卫厨（中国）股份有限公司 | Intelligent control method for combustion method and draught fan in bathroom heating equipment |
| CN105972828A (en) * | 2016-05-24 | 2016-09-28 | 万家乐热能科技有限公司 | Power control method for fuel gas heating water heater |
| CN111457577A (en) * | 2019-01-21 | 2020-07-28 | 上海水护盾健康科技有限公司 | Heating and bathroom dual-function gas heating water heater and control method thereof |
| CN110594855A (en) * | 2019-07-16 | 2019-12-20 | 华帝股份有限公司 | Control method of gas heating stove with variable bathing heat load and gas heating stove |
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