CN113551426B - Gas water heating equipment and high-wind-resistance control method thereof - Google Patents
Gas water heating equipment and high-wind-resistance control method thereof Download PDFInfo
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- CN113551426B CN113551426B CN202110798167.7A CN202110798167A CN113551426B CN 113551426 B CN113551426 B CN 113551426B CN 202110798167 A CN202110798167 A CN 202110798167A CN 113551426 B CN113551426 B CN 113551426B
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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
Abstract
The invention discloses a gas water heater and a high wind resistance control method thereof, which are characterized in that a user starts to use a gas water heater, a main controller of the gas water heater controls a double-speed alternating-current fan to start to operate at a low-speed gear, and the main controller acquires a sampling negative pressure value P of the double-speed alternating-current fan and compares the sampling negative pressure value P with a wind pressure closing value P1; if P is more than P1, the gas water heater is ignited and burned by the low-speed gear of the double-speed alternating current fan to enter a working state; if P is less than or equal to P1, the gas water heater cannot be ignited, the main controller switches the double-speed alternating-current fan to a high-speed gear state to continue to operate, then obtains the sampling negative pressure value P of the double-speed alternating-current fan again, and compares the sampling negative pressure value P with the wind pressure closing value P1; if P is still less than or equal to P1, the main controller gives an alarm when the wind pressure is too large and stops running after power failure; if P is larger than P1, the self-checking is normal, and the gas water heater starts to work at a high-speed gear of the double-speed alternating-current fan.
Description
Technical Field
The invention relates to the technical field of gas water heaters, in particular to gas water heating equipment based on a double-speed alternating-current fan and a high wind resistance control method thereof.
Background
At present, the gas water heater using an alternating current fan mainly has the following two operation modes: single speed operation and two speed operation. The single-speed alternating current fan needs to determine an optimal wind speed according to the combustion condition of the whole machine, so that the wind pressure resistance of the fan is limited. The existing double-speed alternating current fan is generally added with a low-speed winding on the basis of a single-speed alternating current fan and is used for low-load combustion, so that the wind pressure resistance of the fan is limited. If a high-speed winding is added on the existing single-speed fan to form a double-speed fan to improve the wind pressure resistance, the problem that wind is added under low load, flame is unstable and even flameout is caused can be caused.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a wind-resistant control method of a gas water heater based on a double-speed alternating-current fan, which can improve the wind pressure resistance during ignition.
In order to achieve the purpose, the invention adopts the following technical scheme.
A high wind resistance control method of gas water heating equipment is characterized in that a high-speed winding is added on the basis of a single-speed alternating current fan to form a double-speed alternating current fan with a low-speed gear and a high-speed gear, and the method comprises the following control steps: (1) When the gas water heating equipment is started, the double-speed alternating-current fan starts to be started at a low-speed gear, a sampling negative pressure value P of the double-speed alternating-current fan is obtained by using the electronic wind pressure sensor, and the sampling negative pressure value P is compared with a wind pressure closing value P1 of the electronic wind pressure sensor; (2) If the sampled negative pressure value P is larger than the wind pressure closing value P1, the gas water heating equipment is ignited and burned by a low-speed gear of the double-speed alternating-current fan to enter a working state; (3) If the sampling negative pressure value P is less than or equal to the wind pressure closing value P1, the double-speed alternating-current fan is switched to a high-speed gear state to continue to operate, then the sampling negative pressure value P of the double-speed alternating-current fan is obtained again, and the sampling negative pressure value P is compared with the wind pressure closing value P1; (4) If the sampled negative pressure value P is still less than or equal to the wind pressure closed value P1 during high-speed gear running, alarming when the wind pressure is too large and stopping running after power failure; if the sampled negative pressure value P is larger than the wind pressure closing value P1, the self-checking is normal, and the gas water heater is ignited and burnt at a high speed gear of the double-speed alternating-current fan to enter a working state.
More preferably, after the gas water heater is ignited and burned at a low gear to enter a working state, the magnitude judgment of the sampled negative pressure value P and the set wind pressure reset value P0 is carried out in a circulating manner, and when the sampled negative pressure value P is less than or equal to the wind pressure reset value P0, the gas water heater is alarmed to be too large in wind pressure and is powered off to stop running; when the sampling negative pressure value P is larger than the wind pressure reset value P0, the double-speed alternating-current fan is controlled to switch between a high gear and a low gear according to the current I of the gas proportional valve and the current reference value I0.
More preferably, if the proportional valve current I is less than the current reference value I0, the double-speed alternating-current fan is maintained to work in a low-speed gear state; and if the current I of the proportional valve is larger than or equal to the current reference value I0, controlling the double-speed alternating-current fan to switch between a high gear and a low gear according to the sampling negative pressure value P and the air adding reference value P2.
More preferably, if the sampling negative pressure value P is greater than or equal to the air adding reference value P2, the low-speed gear state of the double-speed alternating-current fan is maintained to work; if the sampling negative pressure value P is smaller than the air adding reference value P2, regulating and controlling the double-speed alternating-current fan to work at a high-speed gear, and judging the sizes of the sampling negative pressure value P and the air reducing reference value P3; if the sampled negative pressure value P is larger than the wind reduction reference value P3, controlling the double-speed alternating-current fan to recover to the low-speed gear state to work; and if the sampling negative pressure value P is less than or equal to the wind reduction reference value P3, returning to the starting point of the cycle judgment that the low-speed gear ignition combustion enters the working state, and performing the cycle judgment of the sampling negative pressure value P and the set wind pressure reset value P0.
More preferably, after the gas water heating equipment enters a working state at a high-speed gear, the sampling negative pressure value P and the set wind pressure reset value P0 are judged in a circulating manner; if the sampled negative pressure value P is less than or equal to the wind pressure reset value P0, alarming the excessive wind pressure and cutting off the power to stop the gas water heater; if the sampling negative pressure value P is larger than the wind pressure reset value P0, judging the magnitude of the sampling negative pressure value P and the wind reduction reference value P3; if the sampling negative pressure value P is larger than the wind reduction reference value P3, controlling the double-speed alternating-current fan to work in a low-speed gear state; if the sampling negative pressure value P is less than or equal to the wind reduction reference value P3, the double-speed alternating-current fan is maintained to work in a high-speed gear state and returns to a cycle judgment starting point where the high-speed gear is ignited and burnt to enter a working state, and the sampling negative pressure value P and the set wind pressure reset value P0 are judged.
More preferably, the current reference value I 0 =
Said I is PH Current value being the maximum opening of the proportional valve, I PL Is a proportional valve minimumThe current value of the opening degree.
More preferably, the current reference value I 0 The air adding reference value P2 and the air reducing reference value P3 are solidified in a main controller of the gas water heater through programs, and the high wind resistance control method of the gas water heater is realized through the control of the main controller of the gas water heater.
More preferably, the sampling negative pressure value P is obtained by sampling through an electronic wind pressure sensor, the electronic wind pressure sensor is connected with the main controller through a wind pressure sensor connecting line, and is connected with the volute of the double-speed alternating current fan through a wind pressure air suction pipe.
The invention also provides gas water heater equipment which is characterized by comprising the high wind resistance control method.
More preferably, the gas water heater is a gas water heater having a hot water supply function or a gas wall-hanging stove having both hot water supply and heating functions.
The invention has the beneficial effects.
1. The main controller obtains a sampling negative pressure value P of the double-speed alternating-current fan and compares the sampling negative pressure value P with a wind pressure closing value P1 so as to adjust the gas water heater to be ignited and combusted at a low speed gear or a high speed gear of the double-speed alternating-current fan to enter a working state or stop working when the gas water heater is powered off; the wind pressure resistance of the gas water heater during ignition is improved.
2. Proportional valve current signal and current reference value I acquired by main controller 0 Comparing the obtained negative pressure value P of the fan with the air adding reference value P2 and the air reducing reference value P3 to jointly complete automatic switching of high and low speed gears of the double-speed alternating current fan of the gas water heater; when the double-speed alternating-current fan runs at a low speed, the stability of gas combustion flame in the gas water heater can be ensured, and when the double-speed alternating-current fan runs at a high speed, the wind pressure resistance of the double-speed alternating-current fan is increased, so that the water heater is ensured to run in a severe environment.
3. A closed-loop feedback regulation process is arranged among the main controller, the double-speed alternating-current fan and the proportional valve, and the main controller receives a negative pressure signal of the double-speed alternating-current fan and proportional valve current fed back by the proportional valve in real time so as to adjust and correct a control result and improve control accuracy.
Drawings
Fig. 1 is a schematic diagram of a connection application of a two-speed ac fan.
Fig. 2 is a block diagram showing a program of a method for controlling wind resistance of a gas water heater based on a double-speed alternating current fan according to the present invention.
Reference numerals indicate the same.
1: electronic wind pressure sensor, 2: double-speed alternating current fan, 3: wind pressure breathing pipe, 4: wind pressure sensor connecting wire, 5: fan connecting wire, 6: and a main controller.
Detailed Description
In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated without limiting the specific scope of protection of the present invention.
Furthermore, if any, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features. Thus, a definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the feature, and in the description of the invention, "at least" means one or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; mechanical connection is also possible; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
In the present invention, unless otherwise specified and limited, "a first feature" on "or" under "a second feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact through another feature therebetween. Also, the first feature being "above," "below," and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply an elevation which indicates a level of the first feature being higher than an elevation of the second feature. The first feature being "above", "below" and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or merely means that the first feature is at a lower level than the second feature.
The following description will further describe embodiments of the present invention with reference to the accompanying drawings of the specification, so that the technical solutions and the advantages thereof of the present invention are more clear and definite. The embodiments described below are exemplary and are intended to be illustrative of the invention, but are not to be construed as limiting the invention.
The first embodiment.
As shown in fig. 1, the connection application mode of the double-speed ac fan includes: electron wind pressure sensor 1, double speed AC fan 2, wind pressure breathing pipe 3, wind pressure sensor connecting wire 4, fan connecting wire 5 and main control unit 6, electron wind pressure sensor 1 is connected through wind pressure breathing pipe 3 and double speed AC fan 2's spiral case, is used for gathering the negative pressure of double speed AC fan, main control unit 6 is connected with electron wind pressure sensor 1 and double speed AC fan 2 respectively through wind pressure sensor connecting wire 4, fan connecting wire 5, is used for according to the work of the wind pressure signal control double speed AC fan of electron wind pressure sensor feedback. The main working principle of the system is that a closed-loop feedback regulation between the main controller and the double-speed alternating-current fan 2 is realized through a real-time negative pressure signal of the double-speed alternating-current fan 2 provided by the electronic wind pressure sensor 1 and a current signal fed back by the gas proportional valve.
The invention provides a high wind resistance control method of gas water heating equipment, which is characterized in that a high-speed winding is added on the basis of the existing single-speed alternating-current fan to form a double-speed alternating-current fan with a low-speed gear and a high-speed gear, and the control method of the double-speed alternating-current fan is improved, so that the wind pressure resistance is enhanced, the stable combustion of flame in low-load operation is ensured, and the scheme under the ignition condition is covered, namely, the key problem of enhancing the wind pressure resistance during ignition after introducing the high-speed winding is emphatically solved.
Gas water heating equipment, such as a gas water heater, a gas wall-mounted boiler and the like, generally needs to meet the condition that a wind pressure switch is closed to start ignition and combustion. The design idea of the application is as follows: if the double-speed alternating-current fan can not close the wind pressure switch in the low-speed state, switching to the high-speed state to continue judging, if the fan can close the wind pressure switch in the high-speed operation, the water heater can normally ignite and burn, otherwise, a fault alarm is given; the wind pressure resistance during ignition is also improved.
As shown in fig. 2, a high wind resistance control method for a gas water heater is characterized by comprising the following steps.
1) When a user uses the gas water heater, the main controller of the gas water heater controls the double-speed alternating-current fan to start to operate at a low-speed gear, the main controller obtains a sampling negative pressure value P of the double-speed alternating-current fan by using the electronic wind pressure sensor, and the sampling negative pressure value P is compared with a wind pressure closing value P1 of the electronic wind pressure sensor.
2) If the sampling negative pressure value P is larger than P1, the gas water heater ignites and burns at a low speed gear of the double-speed alternating-current fan, and enters a working state; if the sampled negative pressure value P is less than or equal to the wind pressure closed value P1, the gas water heater cannot be ignited, the main controller switches the double-speed alternating-current fan to a high-speed gear to operate, the sampled negative pressure value P of the double-speed alternating-current fan is obtained again and is compared with the wind pressure closed value P1, if the sampled negative pressure value P is still less than or equal to the wind pressure closed value P1, the main controller judges a fault and gives an alarm when the wind pressure is too large, and the power failure stops operating the protection machine; if the sampling negative pressure value P is larger than P1, the self-checking is normal, and the gas water heater starts to work at a high-speed gear of the double-speed alternating-current fan.
3) When the gas water heater enters a working state by using the low gear of the double-speed alternating-current fan in the step 2), the main controller starts to compare the sampled negative pressure value P with the set wind pressure reset value P0; when the sampling negative pressure value P is smaller than or equal to the wind pressure reset value P0, the main controller gives an alarm of excessive wind pressure and enables the gas water heater to be powered off and stop running; when the sampling negative pressure value P is larger than the wind pressure reset value P0, the main controller obtains the proportional valve current I and starts to judge the proportional valve current I and the current reference value I 0 If the proportional valve current I is smaller than the current reference value I 0 The main controller enables the double-speed alternating-current fan to work in a low-speed gear state, and returns to the sampling negative pressure value P to be compared with the wind pressure reset value P0 again to repeat the above circulation; if the proportional valve current I is greater than or equal to the current reference value I 0 The main controller continues to compare the sampled negative pressure value P with the air adding reference value P2, if the sampled negative pressure value P is larger than or equal to P2, the double-speed alternating-current fan keeps the original state, and the main controller compares the sampled negative pressure value P with the air reducing reference value P3; if the sampling negative pressure value P is smaller than the air adding reference value P2, the main controller maintains the double-speed alternating-current fan to work in a high-speed state, and judges the magnitudes of the sampling negative pressure value P and the air reducing reference value P3, if the sampling negative pressure value P is larger than the air reducing reference value P3, the main controller maintains the double-speed alternating-current fan to work in a low-speed state, and the sampling negative pressure value P and the air pressure reset value P0 are judged and the above circulation is repeated; and if the sampling negative pressure value P is less than or equal to the wind reduction reference value P3, directly returning to the judgment of the magnitudes of the sampling negative pressure value P and the wind pressure reset value P0 and repeating the above cycle.
4) When the gas water heater enters a working state by using a high-speed gear of the double-speed alternating-current fan in the step 2), the main controller judges the magnitude of the sampled negative pressure value P and the set wind pressure reset value P0, and if the sampled negative pressure value P is smaller than or equal to the wind pressure reset value P0, the main controller gives an alarm of excessive wind pressure and cuts off the power to stop operating the protection machine; and if the sampling negative pressure value P is larger than the wind pressure reset value P0, judging the magnitude of the sampling negative pressure value P and the wind reduction reference value P3. If the sampling negative pressure value P is larger than the wind reduction reference value P3, the main controller enables the double-speed alternating-current fan to work in a low-speed state and returns to the cycle of starting the low-speed gear; and if the sampling negative pressure value P is smaller than the wind reduction reference value P3, returning to the previous step of judging the magnitudes of the sampling negative pressure value P and the wind pressure reset value P0 and repeating the cycle.
It should be noted that, in the step 4), returning the double-speed ac fan from the high-speed gear to the low-speed gear for operation and returning to the low-speed gear for starting in a cycle means that the main controller continues to judge the magnitude of the sampled negative pressure value P and the set wind pressure reset value P0, and when the sampled negative pressure value P is less than or equal to the wind pressure reset value P0, the main controller gives an alarm of excessive wind pressure and stops operating the gas water heater when power is off; when the sampling negative pressure value P is larger than the wind pressure reset value P0, the main controller obtains the proportional valve current I and controls the double-speed alternating-current fan to work according to the proportional valve current I and the current reference value I0. If the proportional valve current I is smaller than the current reference value I0, the main controller maintains the double-speed alternating-current fan to work in a low-speed state and returns to the judgment of the sampling negative pressure value P and the set wind pressure reset value P0; and if the current I of the proportional valve is larger than or equal to the current reference value I0, controlling the double-speed alternating-current fan to work according to the sampling negative pressure value P and the air adding reference value P2. If the sampling negative pressure value P is larger than or equal to the air adding reference value P2, the main controller maintains the low-speed state work of the double-speed alternating-current fan, and the sizes of the sampling negative pressure value P and the air reducing reference value P3 are judged; if the sampling negative pressure value P is smaller than the air adding reference value P2, the main controller regulates and controls the double-speed alternating-current fan to work at a high-speed gear, and the sizes of the sampling negative pressure value P and the air reducing reference value P3 are judged; if the sampling negative pressure value P is larger than the wind reduction reference value P3, the main controller enables the double-speed alternating-current fan to work in a low-speed state and returns to the judgment of the sampling negative pressure value P and the set wind pressure reset value P0; and if the sampling negative pressure value P is less than or equal to the wind reduction reference value P3, directly returning to the judgment of the sampling negative pressure value P and the set wind pressure reset value P0.
In addition, it should be noted that the main controller 6 obtains the sampled negative pressure value P of the two-speed ac fan 2 through the real-time negative pressure signal of the two-speed ac fan fed back by the electronic wind pressure sensor 1. The electronic wind pressure sensor 1 is connected with the double-speed alternating current fan 2 through a wind pressure suction pipe 3, and the electronic wind pressure sensor 1 is connected with the main controller 6 through a wind pressure sensor connecting wire 4; and the main controller is connected with the double-speed alternating current fan 2 through a fan connecting wire 5. And the main controller obtains proportional valve current I through proportional valve feedback. The product model selection and circuit design of the electronic wind pressure sensor and the proportional valve are all common technical knowledge mastered by those skilled in the art, and are not described herein again.
Further, the current reference value I 0 =
The said I PH Current value being the maximum opening of the proportional valve, I PL The current value is the minimum opening of the proportional valve.
The wind pressure reset value P0 and the wind pressure closing value P1 are determined by an electronic wind pressure sensor and are different according to different models of the electronic wind pressure sensor installed on the gas water heater. For an electronic wind pressure sensor, the values of P0 and P1 can be adjusted by a master controller program.
In the present embodiment, the current reference value I 0 The wind pressure reset value P0 and the wind pressure closing value P1 are solidified in a main controller of the gas water heater through programs when the gas water heater leaves a factory. In other embodiments, the main controller of the gas water heater can be programmed by engineering personnel during installation and debugging of the gas water heater or after detection and maintenance. Of course, the current reference value I may also be made by some initialization operation 0 The wind pressure reset value P0 and the wind pressure closing value P1 are restored; as for these initialization operations, the common technical knowledge of those skilled in the art is not described in detail herein.
The air adding reference value P2 and the air reducing reference value P3 are obtained through experimental tests, the air adding reference point P2 is a fan negative pressure value when the smoke of the water heater exceeds the standard, and the air reducing reference point P3 is a fan negative pressure value when the water heater is out of flame, flameout and the like. The detailed measurement method is common knowledge of those skilled in the art and will not be described herein. And the air adding reference value P2 and the air reducing reference value P3 are written into a main controller of the gas water heater by engineering personnel after the gas water heater is tested or detected and maintained.
The second embodiment.
A gas water heating device is provided with the high wind resistance control method of the gas water heating device according to the embodiment I.
The gas water heater is a gas water heater having a hot water supply function or a gas wall-hanging boiler having both hot water supply and heating functions.
The gas-fired water heating equipment provided by the embodiment has all the advantages of the embodiment, and the description is omitted. The specific structure of the gas-fired water heating apparatus may adopt the existing or future structure, and will not be described in detail herein.
It will be appreciated by those skilled in the art from the foregoing description of construction and principles that the invention is not limited to the specific embodiments illustrated above, and that modifications and alterations based on the teachings of the invention known in the art are intended to be included within the scope of the invention, which is defined in the following claims and their equivalents. The details not described in the detailed description are prior art or common general knowledge.
Claims (10)
1. A high wind resistance control method of gas water heating equipment is characterized in that a high-speed winding is added on the basis of a single-speed alternating current fan to form a double-speed alternating current fan with a low speed gear and a high speed gear, and the method comprises the following control steps:
(1) When the gas water heating equipment is started, the double-speed alternating-current fan starts to be started at a low-speed gear, a sampling negative pressure value P of the double-speed alternating-current fan is obtained by using the electronic wind pressure sensor, and the sampling negative pressure value P is compared with a wind pressure closing value P1 of the electronic wind pressure sensor;
(2) If the sampled negative pressure value P is larger than the wind pressure closing value P1, the gas water heating equipment is ignited and burned by a low-speed gear of the double-speed alternating-current fan to enter a working state;
(3) If the sampling negative pressure value P is less than or equal to the wind pressure closure value P1, the double-speed alternating-current fan is switched to a high-speed gear state to continue to operate, then the sampling negative pressure value P of the double-speed alternating-current fan is obtained again, and the sampling negative pressure value P is compared with the wind pressure closure value P1;
(4) If the sampled negative pressure value P is still less than or equal to the wind pressure closing value P1 during high-speed gear operation, alarming when the wind pressure is too large and stopping operation after power failure; if the sampled negative pressure value P is larger than the wind pressure closing value P1, the self-checking is normal, and the gas water heater is ignited and burned by a high-speed gear of the double-speed alternating-current fan to enter a working state;
after the gas water heater is ignited and burned in a low-speed gear to enter a working state, the magnitude judgment of a sampling negative pressure value P and a set wind pressure reset value P0 is carried out in a circulating mode, when the sampling negative pressure value P is smaller than or equal to the wind pressure reset value P0, an overlarge wind pressure alarm is carried out, and the gas water heater is powered off and stops running; when the sampling negative pressure value P is larger than the wind pressure reset value P0, according to the current I of the gas proportional valve and the current reference value I 0 The size of the double-speed alternating current fan controls the switching between a high gear and a low gear;
after the gas water heating equipment enters a working state at a high speed, circularly judging the magnitude of a sampling negative pressure value P and a set wind pressure reset value P0; if the sampled negative pressure value P is less than or equal to the wind pressure reset value P0, alarming when the wind pressure is too large and stopping the gas water heater from working when the power is off; if the sampling negative pressure value P is larger than the wind pressure reset value P0, the sampling negative pressure value P and the wind reduction reference value P3 are judged, and the wind reduction reference value P3 is a fan negative pressure value when the gas water heating equipment is out of flame and flameout.
2. The high wind resistance control method of a gas water heater according to claim 1, wherein if the proportional valve current I < the current reference value I 0 If so, the double-speed alternating current fan is maintained to work in a low-speed gear state; if the proportional valve current I is larger than or equal to the current reference value I 0 If the sampling negative pressure value P is larger than the wind adding reference value P2, the double-speed alternating-current fan is controlled to switch between a high gear and a low gear; and the air adding reference value P2 is a fan negative pressure value when the smoke of the gas water heating equipment exceeds the standard.
3. The high wind resistance control method of the gas water heating equipment according to claim 2, characterized in that if the sampled negative pressure value P is more than or equal to the wind adding reference value P2, the low-gear state work of the double-speed alternating current fan is maintained; if the sampling negative pressure value P is smaller than the air adding reference value P2, regulating and controlling the double-speed alternating-current fan to work at a high-speed gear, and judging the sizes of the sampling negative pressure value P and the air reducing reference value P3;
if the sampled negative pressure value P is larger than the wind reduction reference value P3, controlling the double-speed alternating-current fan to recover to the low-speed gear state to work; and if the sampling negative pressure value P is less than or equal to the wind reduction reference value P3, returning to the starting point of the cycle judgment that the low-speed gear ignition combustion enters the working state, and performing the cycle judgment of the sampling negative pressure value P and the set wind pressure reset value P0.
4. The high wind resistance control method of the gas water heater according to claim 1, wherein the sampled negative pressure value P and the wind reduction reference value P3 are determined as follows:
if the sampling negative pressure value P is larger than the wind reduction reference value P3, controlling the double-speed alternating-current fan to work in a low-speed gear state; and if the sampling negative pressure value P is less than or equal to the wind reduction reference value P3, maintaining the double-speed alternating-current fan to work in a high-speed gear state and return to a cycle judgment starting point where the high-speed gear is ignited and burned to enter the working state, and judging the magnitude of the sampling negative pressure value P and a set wind pressure reset value P0.
5. The high wind resistance control method of a gas water heater according to claim 1, wherein the current reference value I 0 =
Said I is PH Current value being the maximum opening of the proportional valve, I PL Is the current value of the minimum opening of the proportional valve.
6. The high wind resistance control method of a gas water heater according to claim 1, wherein the current reference value I 0 The wind pressure reset value P0 and the wind pressure closing value P1 are all passed throughThe program is solidified in the main controller of the gas water heater, and the high wind resistance control method of the gas water heater is realized by the control of the main controller of the gas water heater.
7. The high wind resistance control method of the gas water heating equipment according to claim 6, wherein the sampled negative pressure value P is obtained by sampling with an electronic wind pressure sensor, and the electronic wind pressure sensor is connected with the main controller through a wind pressure sensor connecting line and connected with a volute of the two-speed AC fan through a wind pressure suction pipe.
8. The high wind resistance control method of the gas water heater equipment according to claim 2, wherein the wind adding reference value P2 and the wind reducing reference value P3 are programmed into a main controller of the gas water heater by an engineer after the gas water heater is tested or after the gas water heater is inspected and repaired.
9. A gas water heater apparatus, characterized by having a high wind resistance control method as claimed in any one of claims 1-8.
10. The gas water heater device according to claim 9, wherein the gas water heater device is a gas water heater having a hot water supply function or a wall-mounted gas boiler having both hot water supply and heating functions.
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| CN202110798167.7A CN113551426B (en) | 2021-07-14 | 2021-07-14 | Gas water heating equipment and high-wind-resistance control method thereof |
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| CN202110798167.7A CN113551426B (en) | 2021-07-14 | 2021-07-14 | Gas water heating equipment and high-wind-resistance control method thereof |
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| CN111089425A (en) * | 2018-10-24 | 2020-05-01 | 宁波方太厨具有限公司 | Wind pressure resistance control method for fan of gas water heater based on alternating current fan |
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| EP2878896B1 (en) * | 2013-11-08 | 2018-01-03 | Vaillant GmbH | Gas water heating appliance with air pressure switch |
| CN205373066U (en) * | 2015-12-28 | 2016-07-06 | 思达文电器（深圳）有限公司 | High -efficient burning intelligence constant temperature gas heater |
| CN109869893A (en) * | 2019-01-29 | 2019-06-11 | 广东万和热能科技有限公司 | A kind of blower control method and system of gas heater |
| CN111811133A (en) * | 2020-06-01 | 2020-10-23 | 威能(无锡)供热设备有限公司 | Gas water heating equipment |
| CN212566337U (en) * | 2020-07-27 | 2021-02-19 | 珠海格力电器股份有限公司 | Gas water heater |
| CN111735212A (en) * | 2020-07-27 | 2020-10-02 | 珠海格力电器股份有限公司 | Gas water heater, control method and device of gas water heater and storage medium |
| CN113028652B (en) * | 2021-04-03 | 2022-04-26 | 中山百得厨卫有限公司 | Water heater control method based on wind pressure sensor and water heater |
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