CN113606793A - Gas water heating equipment based on alternating current fan and high wind resistance control method thereof - Google Patents
Gas water heating equipment based on alternating current fan and high wind resistance control method thereof Download PDFInfo
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- CN113606793A CN113606793A CN202110810814.1A CN202110810814A CN113606793A CN 113606793 A CN113606793 A CN 113606793A CN 202110810814 A CN202110810814 A CN 202110810814A CN 113606793 A CN113606793 A CN 113606793A
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- gas water
- water heating
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- heating equipment
- current fan
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L5/00—Blast-producing apparatus before the fire
- F23L5/02—Arrangements of fans or blowers
Abstract
The invention discloses a gas water heating device based on an alternating current fan and a high-wind-resistance control method thereof, which are 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; starting the gas water heating equipment to run at a low gear; in the operation process of the gas water heating equipment, a main controller obtains a sampling negative pressure value P of a double-speed alternating-current fan, and when the sampling negative pressure value P is smaller than an air adding reference value P2, the main controller regulates and controls the double-speed alternating-current fan to work at a high-speed gear; in a high-speed gear working state, when a sampling negative pressure value P is larger than a wind reduction reference value P3, the main controller regulates and controls the double-speed alternating-current fan to recover to a low-speed gear working state; thereby enhancing the wind pressure resistance of the gas water heating equipment and taking the combustion effect of the whole machine into consideration.
Description
Technical Field
The invention relates to the technical field of gas water heating equipment, in particular to gas water heating equipment based on an alternating current fan and a high wind resistance control method thereof.
Background
Current water heaters with ac fans have two types of single speed operation and two-speed operation. The set winding of the existing single-speed alternating current fan is designed to adapt to the optimal wind speed of the combustion of the whole machine, so that the wind pressure resistance of the single-speed alternating current fan is limited; the existing alternating current fan is only provided with a low-speed winding on the basis of a single-speed alternating current fan, so that the wind pressure resistance of the alternating current fan is limited. Users who live in high floors or areas with strong wind all the year round often have poor wind pressure resistance of the fan, so that poor use experience is brought to the users. In addition, in the prior art, wind pressure resistance is realized by stepless speed regulation of the direct current fan. However, the direct current fan is complex in manufacturing process and high in cost.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a high wind resistance control method of gas water heating equipment based on an alternating current fan, which has better wind pressure resistance.
In order to achieve the purpose, the invention adopts the following technical scheme.
A high wind resistance control method of gas water heating equipment based on an alternating current fan 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; starting the gas water heating equipment to run at a low gear; in the operation process of the gas water heating equipment, a main controller obtains a sampling negative pressure value P of a double-speed alternating-current fan, and when the sampling negative pressure value P is smaller than an air adding reference value P2, the main controller regulates and controls the double-speed alternating-current fan to work at a high-speed gear; in a high-speed gear working state, when the sampling negative pressure value P is larger than the wind reduction reference value P3, the main controller regulates and controls the double-speed alternating-current fan to recover to a low-speed gear working state.
More preferably, in the starting process of the gas water heating equipment, the main controller compares the negative pressure value P of the fan with a set wind pressure closing value P1, and if the P is less than or equal to P1, the main controller gives an alarm of excessive wind pressure and stops operating the gas water heating equipment after power failure; if P is more than P1, the self-checking is normal, and the gas water heating equipment is started normally to work.
More preferably, in a low-gear working state, the main controller circularly compares the negative pressure value P of the fan with the air pressure reset value P0, if P is less than or equal to P0, the main controller gives an alarm that the air pressure is too large, and the gas water heating equipment stops running after power failure.
More preferably, the sampling negative pressure value P is sampled by an electronic wind pressure switch connected to the double-speed ac fan, a sampling signal of the electronic wind pressure switch is transmitted to the main controller, and the main controller obtains the sampling negative pressure value P according to the sampling signal.
More preferably, the double-speed ac fan is a turbo fan, and the electronic wind pressure switch is connected to the volute of the double-speed ac fan through a wind pressure suction pipe.
More preferably, the wind pressure reset value P0 and the wind pressure close value P1 are solidified in a main controller of the gas water heater by a program when the gas water heater is shipped from a factory; or the gas water heating equipment is rewritten into the main controller of the gas water heating equipment by engineering personnel during installation and debugging or after detection and maintenance.
More preferably, the wind-up reference value P2 and the wind-down reference value P3 are programmed into a main controller of the gas water heater by an engineer after testing or inspection and maintenance of the gas water heater.
The invention also provides gas water heating equipment which is characterized by comprising the high-wind-resistance control method of the gas water heating equipment.
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.
Firstly, high wind pressure resistance is realized based on a double-speed alternating current fan, the control is simple, and the application cost is low; in the control process, starting at a low-speed gear, acquiring a sampling negative pressure value P of the double-speed alternating-current fan by the main controller in real time, and regulating the double-speed alternating-current fan to work at a high-speed winding and the alternating-current fan to run at a high speed by the main controller when the sampling negative pressure value P is smaller than an air adding reference value P2 so as to enhance the wind pressure resistance of the gas water heating equipment; when the sampling negative pressure value P is larger than the wind reduction reference value P3 during high-speed operation, the main controller regulates and controls the alternating current fan to switch to the low-speed winding to work, and the normal combustion of the gas water heater is considered while the wind pressure resistance is ensured.
Secondly, in the starting process of the gas water heater, the sampling negative pressure value P is compared with a set wind pressure closing value P1 and a set wind pressure resetting value P0, and the gas water heater is guaranteed to start to operate in a safe state.
And a closed-loop feedback regulation process is arranged between the main controller and the double-speed alternating-current fan, and the main controller receives a negative pressure signal of the double-speed alternating-current fan in real time so as to adjust and correct a control result and improve the control accuracy.
Drawings
Fig. 1 is a schematic connection diagram of an alternating current fan of the high wind resistance control method for gas water heating equipment based on the alternating current fan.
Fig. 2 is a block diagram showing a program of a high wind resistance control method for gas water heating equipment based on an alternating current fan according to the present invention.
Reference numerals indicate the same.
1: electronic wind pressure switch, 2: AC fan, 3: wind pressure breathing pipe, 4: wind pressure switch 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 the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating 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; or may be a mechanical connection; 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, "above" or "below" a first 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 with each other 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 describes the embodiments of the present invention with reference to the drawings of the specification, so that the technical solutions and the advantages thereof are more clear and clear. 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 invention provides a high-wind-resistance control method of gas water heating equipment based on an alternating-current fan, which is realized based on the following principle: 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; during operation, the high wind pressure resistance is realized by controlling the switching between the low-speed gear and the high-speed gear, the combustion effect of the whole machine is considered, the control is simple, and the application cost is low.
The first embodiment.
As shown in fig. 1 and 2, a high wind resistance control method for gas water heating equipment based on an alternating current fan 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; starting the gas water heating equipment to run at a low gear; in the operation process of the gas water heating equipment, a main controller obtains a sampling negative pressure value P of a double-speed alternating-current fan, and when the sampling negative pressure value P is smaller than an air adding reference value P2, the main controller regulates and controls the double-speed alternating-current fan to work at a high-speed gear; in a high-speed gear working state, when the sampling negative pressure value P is larger than the wind reduction reference value P3, the main controller regulates and controls the double-speed alternating-current fan to recover to a low-speed gear working state. When the wind reduction reference value P3 is larger than or equal to the sampling negative pressure value P and larger than or equal to the wind adding reference value P2, the working state of the alternating current fan is kept unchanged.
After the gas water heating equipment is started, the main controller controls the double-speed alternating-current fan to start to operate at a low-speed gear and obtains a fan negative pressure value P of the double-speed alternating-current fan, the main controller firstly compares the fan negative pressure value P with a set wind pressure closing value P1, and if the P is not more than P1, the main controller gives an alarm of excessive wind pressure and stops operating the gas water heating equipment after power is cut off; if P is more than P1, the self-checking is normal, and the gas water heating equipment starts to work at the low gear of the two-speed alternating-current fan.
After the gas water heating equipment starts to work at a low-speed gear of the double-speed alternating-current fan, the main controller compares the negative pressure value P of the fan with the air pressure reset value P0, if the P is not more than P0, the main controller gives an alarm that the air pressure is too large, and the gas water heating equipment stops running after power failure; if P > P0, the master controller performs a size comparison of P to P2.
Specifically, the main controller compares the size of P with that of P2, if P is larger than or equal to P2, the alternating current fan keeps the original working state, and the main controller compares the size of P with that of P3; and if P is less than P2, the main controller controls the double-speed alternating current fan to work in a high-speed gear, and the main controller compares P with P3.
If P is more than P3, the main controller controls the double-speed alternating-current fan to work at a low speed, and the steps of comparing P with P0 are returned, and the above circulation is repeated; if P is less than P3, go directly back to the size comparison step of P and P0 and repeat the above cycle.
In addition, it should be noted that the main controller 6 obtains the sampling negative pressure value P of the ac fan 2 through the real-time negative pressure signal of the ac fan 2 fed back by the electronic wind pressure switch 1. The double-speed alternating current fan is a turbine fan, the electronic wind pressure switch 1 is connected with a volute of the double-speed alternating current fan 2 through a wind pressure air suction pipe 3, and the electronic wind pressure switch 1 is connected with the main controller 6 through a wind pressure switch connecting wire 4; the main controller 6 is connected with the alternating current fan through a fan connecting wire 5. The selection of the product model and the circuit design of the electronic wind pressure switch are common technical knowledge mastered by those skilled in the art, and are not described herein again.
The wind pressure reset value P0 and the wind pressure closing value P1 are set according to the requirements of standards and technical regulations. The technical personnel in the field can set according to the specific requirements of different models of gas water heaters, and the specific setting method is common knowledge in the field and is not described herein again.
In this embodiment, the wind pressure reset value P0 and the wind pressure close value P1 are programmed and solidified in the main controller of the gas water heater at the time of factory shipment. In other embodiments, the hot water system may be rewritten into the main controller of the gas hot water apparatus by an engineer during installation and commissioning of the gas hot water apparatus or after inspection and maintenance. Of course, the wind pressure reset value P0 and the wind pressure closing value P1 may also be restored through some initialization operations; as for these initialization operations, the details thereof will not be described herein, as long as they are within the ordinary skill of those skilled in the art.
The air adding reference value P2 and the air reducing reference value P3 are obtained through experimental tests of gas water heating equipment, the air adding reference value P2 is a critical point of air adding required when smoke gas exceeds standard requirements, and the air reducing reference value P3 is a critical point of air reducing required when phenomena such as flame leaving and blow-out occur. The detailed description of the measurement method is common knowledge of those skilled in the art and is not repeated here. The air adding reference value P2 and the air reducing reference value P3 are written into a main controller of the gas water heating equipment by engineering personnel after the gas water heating equipment is tested or detected and maintained.
In actual operation, the specific steps of control are as follows.
1) When a user uses the gas water heating equipment, the double-speed alternating-current fan starts to operate at a low-speed gear, the main controller obtains a sampling negative pressure value P of the alternating-current fan, and the sampling negative pressure value P is compared with a set wind pressure closing value P1.
2) If P is less than or equal to P1, the main controller gives an alarm of excessive wind pressure and cuts off the power to stop running the protection machine; if P is larger than P1, the gas water heater enters a working state by a low-speed gear of the double-speed alternating-current fan, and the main controller starts to compare P with a set wind pressure reset value P0.
3) If P is less than or equal to P0, the main controller gives an alarm of excessive wind pressure and stops running to protect the machine when power is off; if P > P0, the master controller makes a magnitude comparison of P with the windage reference value P2.
4) If P is larger than or equal to P2, the double-speed alternating-current fan keeps the original state, and the main controller compares P with a wind reduction reference value P3; and if P is less than P2, the main controller controls the alternating current fan to work at a high speed, the fan enters high-speed running, and the main controller compares P with a wind reduction reference value P3.
5) If P is more than P3, the main controller controls the double-speed alternating-current fan to work at a low speed, and the steps of comparing P with P0 are returned, and the above circulation is repeated; if P is less than P3, go directly back to the size comparison step of P and P0 and repeat the above cycle.
Example two.
The gas water heating equipment has the high wind resistance control method according to the embodiment I, and the gas water heating equipment is a gas water heater or a gas wall-mounted boiler.
The gas water heating device provided by the embodiment has all the beneficial effects, which are not described herein, and the specific structure of the gas water heating device can adopt the existing or future structure, which is not described herein in detail.
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 described above, and that modifications and substitutions based on the teachings of the art may be made without departing from the scope of the invention as defined by the appended claims and their equivalents. The details not described in the detailed description are prior art or common general knowledge.
Claims (9)
1. A high wind resistance control method of gas water heating equipment based on an alternating current fan 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; starting the gas water heating equipment to run at a low gear; in the operation process of the gas water heating equipment, a main controller obtains a sampling negative pressure value P of a double-speed alternating-current fan, and when the sampling negative pressure value P is smaller than an air adding reference value P2, the main controller regulates and controls the double-speed alternating-current fan to work at a high-speed gear; in a high-speed gear working state, when the sampling negative pressure value P is larger than the wind reduction reference value P3, the main controller regulates and controls the double-speed alternating-current fan to recover to a low-speed gear working state.
2. The high wind resistance control method of the gas water heating equipment based on the alternating current fan is characterized in that in the starting process of the gas water heating equipment, the main controller compares the negative pressure value P of the fan with the set wind pressure closing value P1, if P is less than or equal to P1, the main controller gives an alarm of excessive wind pressure and stops running the gas water heating equipment after power failure; if P is more than P1, the self-checking is normal, and the gas water heating equipment is started normally to work.
3. The high wind resistance control method of the gas water heater based on the alternating current fan as claimed in claim 2, characterized in that in a low-gear working state, the main controller circularly compares the negative pressure value P of the fan with the wind pressure reset value P0, if P is less than or equal to P0, the main controller gives an alarm that the wind pressure is too large, and the gas water heater stops running after power failure.
4. The high wind resistance control method for the alternating current fan-based gas water heating equipment is characterized in that the sampling negative pressure value P is sampled through an electronic wind pressure switch connected with the two-speed alternating current fan, a sampling signal of the electronic wind pressure switch is transmitted to the main controller, and the main controller obtains the sampling negative pressure value P according to the sampling signal.
5. The high wind resistance control method for gas water heating equipment based on AC fan as claimed in claim 4, wherein the two-speed AC fan is a turbo fan, and the electronic wind pressure switch is connected with the volute of the two-speed AC fan through a wind pressure suction pipe.
6. The alternating current fan-based high wind resistance control method for the gas water heating equipment is characterized in that the wind pressure reset value P0 and the wind pressure closing value P1 are solidified in a main controller of the gas water heating equipment through a program when the gas water heating equipment is shipped from a factory;
or the gas water heating equipment is rewritten into the main controller of the gas water heating equipment by engineering personnel during installation and debugging or after detection and maintenance.
7. The method for controlling the high wind resistance of the gas water heater based on the alternating current fan as claimed in claim 1, 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 inspected and repaired.
8. A gas water heating apparatus, characterized in that, the high wind resistance control method of the gas water heating apparatus according to any one of claims 1 to 7 is provided.
9. The gas-fired water heating apparatus according to claim 8, wherein the gas-fired water heating apparatus 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.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110810814.1A CN113606793B (en) | 2021-07-16 | 2021-07-16 | Gas water heating equipment based on alternating current fan and high wind resistance control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110810814.1A CN113606793B (en) | 2021-07-16 | 2021-07-16 | Gas water heating equipment based on alternating current fan and high wind resistance control method thereof |
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| CN113606793A true CN113606793A (en) | 2021-11-05 |
| CN113606793B CN113606793B (en) | 2022-12-09 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09119633A (en) * | 1995-10-27 | 1997-05-06 | Matsushita Electric Ind Co Ltd | Hot-water supplier |
| EP2878896A1 (en) * | 2013-11-08 | 2015-06-03 | Vaillant GmbH | Gas water heating appliance with air pressure switch |
| CN105674572A (en) * | 2016-01-05 | 2016-06-15 | 威能(无锡)供热设备有限公司 | Gas water heating equipment provided with self-adaptive fan |
| 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 |
| US20170082320A1 (en) * | 2015-09-22 | 2017-03-23 | A.O. Smith Corporation | Dual sensor combustion system |
| 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 |
| CN112128991A (en) * | 2020-09-02 | 2020-12-25 | 华帝股份有限公司 | Exhaust protection control method and water heater using same |
| CN113028652A (en) * | 2021-04-03 | 2021-06-25 | 中山百得厨卫有限公司 | Water heater control method based on wind pressure sensor and water heater |
-
2021
- 2021-07-16 CN CN202110810814.1A patent/CN113606793B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09119633A (en) * | 1995-10-27 | 1997-05-06 | Matsushita Electric Ind Co Ltd | Hot-water supplier |
| EP2878896A1 (en) * | 2013-11-08 | 2015-06-03 | Vaillant GmbH | Gas water heating appliance with air pressure switch |
| US20170082320A1 (en) * | 2015-09-22 | 2017-03-23 | A.O. Smith Corporation | Dual sensor combustion system |
| 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 |
| CN105674572A (en) * | 2016-01-05 | 2016-06-15 | 威能(无锡)供热设备有限公司 | Gas water heating equipment provided with self-adaptive fan |
| 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 |
| CN112128991A (en) * | 2020-09-02 | 2020-12-25 | 华帝股份有限公司 | Exhaust protection control method and water heater using same |
| CN113028652A (en) * | 2021-04-03 | 2021-06-25 | 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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| CN113606793B (en) | 2022-12-09 |
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