CN108489105B - Power control method for electric wall-hung furnace - Google Patents
Power control method for electric wall-hung furnace Download PDFInfo
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- CN108489105B CN108489105B CN201810114571.6A CN201810114571A CN108489105B CN 108489105 B CN108489105 B CN 108489105B CN 201810114571 A CN201810114571 A CN 201810114571A CN 108489105 B CN108489105 B CN 108489105B
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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
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
- F24H9/2028—Continuous-flow heaters
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Abstract
The invention discloses a power control method of an electric wall-hung furnace, which comprises the following steps: the electric wall-mounted boiler adopts a three-phase triangular wiring method; preheating a heating body of the electric wall-hanging furnace; the electric wall-mounted boiler adopts polling type heating, and is heated by a heating body during heating; the electric wall-mounted boiler adopts a chopping constant-temperature model, a gap constant-temperature model and a sectional constant-temperature model to perform constant-temperature control. The invention can reduce energy consumption, control temperature in real time, control temperature accurately, reduce load of power grid, ensure balance of power grid and reduce impact on heating element.
Description
Technical Field
The invention relates to a power control method, in particular to a power control method of an electric wall-hung furnace.
Background
With the popularization and promotion of clean energy nationwide, the use of electric power becomes more extensive. The electric heating occupies a continuously increasing proportion in the electricity consumption of residents, especially in the heating season. Electric heating is limited by the load of the current power grid. The electric wall-mounted boiler is a common electric heating device, the power of the existing wall-mounted boiler is constant, a scientific and reasonable power control method is not provided, the power consumption is overlarge, the load of a power grid is increased, the use is very inconvenient, and the service life of the electric wall-mounted boiler is shortened.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a power control method for an electric wall-mounted boiler, which can not only effectively reduce energy consumption and reduce power grid load, but also is beneficial to prolonging the service life of the electric wall-mounted boiler.
The technical scheme adopted by the invention for solving the problems is as follows: a power control method of an electric wall-hung furnace comprises the following steps:
the electric wall-mounted boiler adopts a three-phase triangular wiring method;
preheating a heating body of the electric wall-hanging furnace;
the electric wall-mounted boiler adopts polling type heating, and is heated by a heating body during heating;
the electric wall-mounted boiler adopts a chopping constant-temperature model, a gap constant-temperature model and a sectional constant-temperature model to carry out constant-temperature control;
the polling heating comprises the following steps:
b1, start;
b2, judging whether the temperature of the X1 area is more than Y1, if so, turning to the step B8, and if not, turning to the step B3;
b3, judging whether the temperature of the X1 area is less than Z1, if so, turning to the step B9, and if not, turning to the step B4;
b4, judging whether the temperature of the X2 area is more than Y2, if so, turning to the step B10, and if not, turning to the step B5;
b5, judging whether the temperature of the X2 area is less than Z2, if so, turning to the step B11, and if not, turning to the step B6;
b6, judging whether the temperature of the X3 area is more than Y3, if so, turning to the step B12, and if not, turning to the step B7;
b7, judging whether the temperature of the X3 area is less than Z3, if so, turning to the step B13, and if not, turning to the step B14;
b8, stopping heating in the X1 area, and turning to the step B3;
b9, starting heating in the X1 area, and turning to the step B4;
b10, stopping heating in the X2 area, and turning to the step B5;
b11, starting heating in the X2 area, and turning to the step B6;
b12, stopping heating in the X3 area, and turning to the step B7;
b13, starting heating in the X3 area, and turning to the step B14;
b14, delaying time T, and turning to step B2.
Further, the electric wall-mounted boiler adopts a three-phase triangular wiring method, which means that the electric wall-mounted boiler uses three-phase current and adopts a triangular wiring method. The invention adopts a three-phase triangular wiring method to lead the power wires with the same cross section area, and the electric wall-hung stove can drive larger load and meet larger heating requirement.
Further, the rated power of the three-phase current is 10KW, 8KW, 6KW, or 4KW, and when the rated power is an integral multiple of 10KW, 8KW, 6KW, or 4KW, the parallel connection mode is used for superposition. The invention superposes the power of the working branches in a parallel connection mode, so that the working branches can work independently without mutual influence, and the other working branches can work normally even if one of the working branches has a problem, thereby enhancing the working stability of the electric wall-hung furnace.
Further, the preheating treatment of the heating element of the electric wall-mounted furnace means that when the electric wall-mounted furnace is started in a cold state, the heating element is preheated with low power consumption, so that the impact of instantaneous current on the cold-state heating element is eliminated, and the service life of the heating element is prolonged. When the heating element is preheated, the ultra-low power consumption preheating technology is adopted, the chopping constant-temperature model is adopted in the ultra-low power consumption preheating technology, and the heating power can be adjusted to be minimum by using the chopping constant-temperature model under the condition that the hardware condition of the electric wall-mounted furnace is not changed.
Further, the electric fireplace is heated in a polling mode, heating through the heating body means real-time temperature detection of different areas of a room, when the real-time detection temperature of the area of the house does not reach the lowest set temperature, the electric fireplace starts heating, and when the real-time monitoring temperature of the area of the house reaches the highest set temperature, the electric fireplace stops heating. The invention can reduce the heating working time and the power consumption on the premise of ensuring the room temperature.
Further, the chopping constant-temperature model is used for controlling the output power of the power supply by controlling the duty ratio of the output current of the power supply, so that the electric wall-mounted stove is controlled to heat, the temperature in a room is controlled, and a constant-temperature effect is achieved. The chopping constant-temperature model is high in adjustment precision and convenient for fine adjustment of the electric wall-mounted furnace. And a chopped wave constant temperature model is used in the heating low-power section and the temperature fine-tuning section.
Further, the gap constant temperature model means that the electric wall-mounted boiler controls the generated heat in an intermittent working mode, the gap constant temperature model is used for keeping the temperature of high power, when the output power of the electric wall-mounted boiler is higher than a set value B, the electric wall-mounted boiler is considered to be in a high-power working mode, the gap constant temperature model is adopted, the electric wall-mounted boiler stops working when the room temperature is too high, and the electric wall-mounted boiler starts working when the room temperature is too low.
Further, the sectional constant temperature model means that the heating module of the electric wall-mounted furnace comprises a plurality of heating resistors, each heating resistor works independently, the room temperature is controlled by adjusting the number of the actually heated resistors, and the constant temperature control of the room temperature is realized. The segmented constant temperature model controls the room temperature by adjusting the number of actually heating resistors, and the heating resistors always perform heating operation, so that the temperature is slowly reduced, and the room temperature is kept constant.
Furthermore, seamless connection among constant temperature control models is achieved through a wide-range self-adaptive PID comprehensive overall chopping constant temperature model, a gap constant temperature model and a sectional constant temperature model. The arrangement of the invention enables the power control scheme of the electric wall-mounted boiler to be more perfect, the control system to be more intelligent, and the room temperature fluctuation to be less than 0.5 ℃.
Further, an automatic identification symmetrical wave-dropping model is used in the high-power intermittent constant-temperature model, the automatic identification symmetrical wave-dropping model refers to the fact that the control system automatically sets the time for stopping the electric wall-mounted boiler according to the temperature regulation requirement, and the intermittent time for stopping the electric wall-mounted boiler every time is the same. The intermittent constant temperature model is arranged in such a way that the heating time and the heating stop time of the wall-mounted furnace are kept constant, the rising speed and the falling speed of the temperature are easy to master, and the constant temperature control of the room temperature is facilitated.
The invention has the beneficial effects that: compared with the traditional electric wall-mounted furnace, the power control scheme of the electric wall-mounted furnace can drive larger load, meet larger heating requirement, effectively reduce electric energy consumption and lighten the load of a power grid. The invention aims at the cold start of the electric wall-mounted furnace, uses an ultra-low power consumption preheating technology, eliminates the impact of instantaneous current on a cold heating element and greatly prolongs the service life of the heating element. The electricity hanging stove adopts the polling formula heating, heats through the heat-generating body during the heating, and traditional hanging stove is simultaneously to each room heat and is arrived temperature and shut down after lasting the certain time, and this system uses the polling type heating, carries out the polling to the interval of difference in the house, and according to the cold-proof effect in each interval, the reel formula is heated each interval and is stopped. The invention discloses an electric wall-mounted boiler which adopts a chopping constant-temperature model, a gap constant-temperature model and a sectional constant-temperature model to carry out constant-temperature control. And (4) performing fine adjustment on the power by using a chopping technology in a heating low-power section and a temperature fine adjustment section. An intermittent technology is used in the high-power section and the coarse adjustment section of the high-power section, meanwhile, a segmentation technology is combined, seamless connection is achieved, and the temperature toggle range is smaller than 0.5 ℃. The influence on the load of the power grid is further reduced by using a chopping constant-temperature model at low power, using an intermittent constant-temperature model at high power and using an automatic identification symmetrical wave loss model in the high-power intermittent constant-temperature model. And the three-phase load imbalance working condition of the power grid is relieved through a three-phase seamless switching model.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a flow chart of the present invention;
fig. 2 is a flowchart of round robin heating.
Detailed Description
Fig. 1 is a flowchart of the present invention, fig. 2 is a flowchart of polling heating, and as shown in fig. 1 and 2, a power control method of an electric fireplace includes the steps of:
a1, adopting a three-phase triangular wiring method for the electric wall-hung furnace;
a2, preheating a heating element of the electric wall-hanging furnace;
a3, heating by a polling type electric wall-hung furnace through a heating body during heating;
a4, the electric wall-hung furnace adopts a chopping constant temperature model, a gap constant temperature model and a sectional constant temperature model to control the constant temperature.
Compared with the traditional electric wall-mounted furnace, the power control scheme of the electric wall-mounted furnace can drive larger load, meet larger heating requirement, effectively reduce electric energy consumption and lighten the load of a power grid. The invention aims at the cold start of the electric wall-mounted furnace, uses an ultra-low power consumption preheating technology, eliminates the impact of instantaneous current on a cold heating element and greatly prolongs the service life of the heating element. The electricity hanging stove adopts the polling formula heating, heats through the heat-generating body during the heating, and traditional hanging stove is simultaneously to each room heat and is arrived temperature and shut down after lasting the certain time, and this system uses the polling type heating, carries out the polling to the interval of difference in the house, and according to the cold-proof effect in each interval, the reel formula is heated each interval and is stopped. The invention discloses an electric wall-mounted boiler which adopts a chopping constant-temperature model, a gap constant-temperature model and a sectional constant-temperature model to carry out constant-temperature control. And (4) performing fine adjustment on the power by using a chopping technology in a heating low-power section and a temperature fine adjustment section. An intermittent technology is used in the high-power section and the coarse adjustment section of the high-power section, meanwhile, a segmentation technology is combined, seamless connection is achieved, and the temperature toggle range is smaller than 0.5 ℃. The influence on the load of the power grid is further reduced by using a chopping constant-temperature model at low power, using an intermittent constant-temperature model at high power and using an automatic identification symmetrical wave loss model in the high-power intermittent constant-temperature model. And the three-phase load imbalance working condition of the power grid is relieved through a three-phase seamless switching model.
Specifically, the electric wall-mounted boiler adopts a three-phase triangular wiring method, which means that the electric wall-mounted boiler uses three-phase current and adopts a triangular wiring method. The invention adopts a three-phase triangular wiring method to lead the power wires with the same cross section area, and the electric wall-hung stove can drive larger load and meet larger heating requirement. The rated power of the three-phase current is 10KW, 8KW, 6KW or 4KW, and when the rated power is integral multiple of 10KW, 8KW, 6KW and 4KW, the three-phase current is overlapped in a parallel connection mode. The invention superposes the power of the working branches in a parallel connection mode, so that the working branches can work independently without mutual influence, and the other working branches can work normally even if one of the working branches has a problem, thereby enhancing the working stability of the electric wall-hung furnace. The preheating treatment of the heating element of the electric wall-mounted furnace means that when the electric wall-mounted furnace is started in a cold state, the heating element is preheated with low power consumption, so that the impact of instantaneous current on the cold-state heating element is eliminated, and the service life of the heating element is prolonged. When the heating element is preheated, the ultra-low power consumption preheating technology is adopted, the chopping constant-temperature model is adopted in the ultra-low power consumption preheating technology, and the heating power can be adjusted to be minimum by using the chopping constant-temperature model under the condition that the hardware condition of the electric wall-mounted furnace is not changed.
The polling heating of the present invention includes the steps of:
b1, start;
b2, judging whether the temperature of the X1 area is more than Y1, if so, turning to the step B8, and if not, turning to the step B3;
b3, judging whether the temperature of the X1 area is less than Z1, if so, turning to the step B9, and if not, turning to the step B4;
b4, judging whether the temperature of the X2 area is more than Y2, if so, turning to the step B10, and if not, turning to the step B5;
b5, judging whether the temperature of the X2 area is less than Z2, if so, turning to the step B11, and if not, turning to the step B6;
b6, judging whether the temperature of the X3 area is more than Y3, if so, turning to the step B12, and if not, turning to the step B7;
b7, judging whether the temperature of the X3 area is less than Z3, if so, turning to the step B13, and if not, turning to the step B14;
b8, stopping heating in the X1 area, and turning to the step B3;
b9, starting heating in the X1 area, and turning to the step B4;
b10, stopping heating in the X2 area, and turning to the step B5;
b11, starting heating in the X2 area, and turning to the step B6;
b12, stopping heating in the X3 area, and turning to the step B7;
b13, starting heating in the X3 area, and turning to the step B14;
b14, delaying time T, and turning to step B2.
Specifically, the electric fireplace adopts polling heating, heating through a heating body during heating refers to real-time temperature detection of different areas of a room, when the real-time detection temperature of the area of a house does not reach the lowest set temperature, the electric fireplace starts heating, and when the real-time monitoring temperature of the area of the house reaches the highest set temperature, the electric fireplace stops heating. The invention can reduce the heating working time and the power consumption on the premise of ensuring the room temperature. The chopping constant-temperature model is used for low-power constant temperature, the output power of the electric wall-mounted furnace is lower than a set value A, namely the electric wall-mounted furnace is considered to be in a low-power working mode, and the chopping constant-temperature model is adopted. The chopping constant-temperature model is high in adjustment precision and convenient for fine adjustment of the electric wall-mounted furnace. And a chopped wave constant temperature model is used in the heating low-power section and the temperature fine-tuning section. The gap constant temperature model is used for controlling the generated heat by the electric wall-mounted boiler in an intermittent working mode, the gap constant temperature model is used for keeping the temperature at high power, when the output power of the electric wall-mounted boiler is higher than a set value B, the electric wall-mounted boiler is considered to be in a high-power working mode, the gap constant temperature model is adopted, the electric wall-mounted boiler stops working when the room temperature is too high, and the electric wall-mounted boiler starts working when the room temperature is too low.
Specifically, the segmented constant temperature model of the invention means that a heating module of the electric wall-mounted furnace comprises a plurality of heating resistors, each heating resistor works independently, and the room temperature is controlled by adjusting the number of the actually heated resistors, so that the constant temperature control of the room temperature is realized. The segmented constant temperature model controls the room temperature by adjusting the number of actually heating resistors, and the heating resistors always perform heating operation, so that the temperature is slowly reduced, and the room temperature is kept constant. Seamless connection among constant temperature control models is achieved through a wide-range self-adaptive PID comprehensive overall chopping constant temperature model, a gap constant temperature model and a segmented constant temperature model. The arrangement of the invention enables the power control scheme of the electric wall-mounted boiler to be more perfect, the control system to be more intelligent, and the room temperature fluctuation to be less than 0.5 ℃. The automatic identification symmetrical wave-dropping model is used in the high-power intermittent constant-temperature model, the automatic identification symmetrical wave-dropping model refers to the fact that the control system automatically sets the time for stopping the electric wall-mounted boiler according to the temperature regulation requirement, and the intermittent time for stopping the electric wall-mounted boiler every time is the same. The intermittent constant temperature model is arranged in such a way that the heating time and the heating stop time of the wall-mounted furnace are kept constant, the rising speed and the falling speed of the temperature are easy to master, and the constant temperature control of the room temperature is facilitated.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment, and the present invention shall fall within the protection scope of the present invention as long as the technical effects of the present invention are achieved by the same means.
Claims (10)
1. A power control method of an electric wall-hung furnace is characterized by comprising the following steps:
the electric wall-mounted boiler adopts a three-phase triangular wiring method;
the electric wall-mounted boiler uses three-phase current and adopts a triangular wiring method;
preheating a heating body of the electric wall-hanging furnace;
the electric wall-mounted boiler adopts polling type heating, and is heated by a heating body during heating;
the electric wall-mounted boiler adopts a chopping constant-temperature model, a gap constant-temperature model and a sectional constant-temperature model to carry out constant-temperature control;
the polling heating comprises the following steps:
b1, start;
b2, judging whether the temperature of the X1 area is more than Y1, if so, turning to the step B8, and if not, turning to the step B3;
b3, judging whether the temperature of the X1 area is less than Z1, if so, turning to the step B9, and if not, turning to the step B4;
b4, judging whether the temperature of the X2 area is more than Y2, if so, turning to the step B10, and if not, turning to the step B5;
b5, judging whether the temperature of the X2 area is less than Z2, if so, turning to the step B11, and if not, turning to the step B6;
b6, judging whether the temperature of the X3 area is more than Y3, if so, turning to the step B12, and if not, turning to the step B7;
b7, judging whether the temperature of the X3 area is less than Z3, if so, turning to the step B13, and if not, turning to the step B14;
b8, stopping heating in the X1 area, and turning to the step B3;
b9, starting heating in the X1 area, and turning to the step B4;
b10, stopping heating in the X2 area, and turning to the step B5;
b11, starting heating in the X2 area, and turning to the step B6;
b12, stopping heating in the X3 area, and turning to the step B7;
b13, starting heating in the X3 area, and turning to the step B14;
b14, delaying time T, and turning to step B2.
2. The power control method of the electric fireplace as claimed in claim 1, wherein: the three-phase triangular wiring method adopted by the electric wall-mounted boiler means that the electric wall-mounted boiler uses three-phase current and adopts a triangular wiring method.
3. The power control method of the electric fireplace as claimed in claim 2, characterized in that: the rated power of the three-phase current is 10KW, 8KW, 6KW or 4KW, and when the rated power is integral multiple of 10KW, 8KW, 6KW and 4KW, the three-phase current is overlapped in a parallel connection mode.
4. The power control method of the electric fireplace as claimed in claim 1, wherein: the preheating treatment of the heating element of the electric wall-mounted furnace means that when the electric wall-mounted furnace is started in a cold state, the heating element is preheated with low power consumption, so that the impact of instantaneous current on the cold-state heating element is eliminated, and the service life of the heating element is prolonged.
5. The power control method of the electric fireplace as claimed in claim 1, wherein: the electric wall-mounted boiler adopts a polling type heating mode, heating is carried out through the heating body during heating, namely real-time temperature detection is carried out on different areas of a room, when the real-time detection temperature of the area of a house does not reach the lowest set temperature, the electric wall-mounted boiler starts heating, and when the real-time monitoring temperature of the area of the house reaches the highest set temperature, the electric wall-mounted boiler stops heating.
6. The power control method of the electric fireplace as claimed in claim 1, wherein: the chopping constant-temperature model is used for controlling the output power of the power supply by controlling the duty ratio of the output current of the power supply, so that the electric wall-mounted stove is controlled to heat, the temperature in a room is controlled, the constant temperature effect is achieved, the chopping constant-temperature model is used for keeping the temperature at low power, the output power of the electric wall-mounted stove is lower than a set value A, the electric wall-mounted stove is considered to be in a low-power working mode, and the chopping constant-temperature model is adopted.
7. The power control method of the electric fireplace as claimed in claim 1, wherein: the gap constant temperature model refers to that the electric wall-mounted furnace controls the generated heat in an intermittent working mode, the gap constant temperature model is used for keeping the temperature of high power, when the output power of the electric wall-mounted furnace is higher than a set value B, the electric wall-mounted furnace is considered to be in a high-power working mode, the gap constant temperature model is adopted, the electric wall-mounted furnace stops working when the room temperature is too high, and the electric wall-mounted furnace starts working when the room temperature is too low.
8. The power control method of the electric fireplace as claimed in claim 1, wherein: the segmented constant temperature model means that a heating module of the electric wall-mounted furnace comprises a plurality of heating resistors, each heating resistor works independently, the room temperature is controlled by adjusting the number of the actually heated resistors, and the constant temperature control of the room temperature is realized.
9. The power control method of the electric fireplace as claimed in claim 1, wherein: seamless connection among constant temperature control models is achieved through a wide-range self-adaptive PID comprehensive overall chopping constant temperature model, a gap constant temperature model and a segmented constant temperature model.
10. The power control method of the electric fireplace as claimed in claim 7, wherein: the automatic identification symmetrical wave-dropping model is used in the high-power intermittent constant-temperature model, the automatic identification symmetrical wave-dropping model refers to the fact that the control system automatically sets the time for stopping the electric wall-mounted boiler according to the temperature regulation requirement, and the intermittent time for stopping the electric wall-mounted boiler every time is the same.
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| CN115900078A (en) * | 2022-10-20 | 2023-04-04 | 珠海格力电器股份有限公司 | Constant-temperature water outlet device, wall-mounted furnace and constant-temperature water outlet method |
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Denomination of invention: A power control method for electric wall mounted furnace Effective date of registration: 20211228 Granted publication date: 20200929 Pledgee: China Co. truction Bank Corp Foshan branch Pledgor: GUANGDONG MEZIC TECH CO.,LTD. Registration number: Y2021980016674 |