CN110260506A - A kind of constant temperature energy-saving digital i.e. hot water structure and its control method - Google Patents
A kind of constant temperature energy-saving digital i.e. hot water structure and its control method Download PDFInfo
- Publication number
- CN110260506A CN110260506A CN201910562097.8A CN201910562097A CN110260506A CN 110260506 A CN110260506 A CN 110260506A CN 201910562097 A CN201910562097 A CN 201910562097A CN 110260506 A CN110260506 A CN 110260506A
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- China
- Prior art keywords
- temperature
- water
- hot water
- controller
- digital
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/101—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply
-
- 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
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1818—Arrangement or mounting of electric heating means
-
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/06—Control, e.g. of temperature, of power
-
- 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
- F24H2250/00—Electrical heat generating means
- F24H2250/08—Induction
Abstract
The invention discloses a kind of constant temperature energy-saving digital i.e. hot water structure and its control methods, hot water structure includes heating tube, water flow sensing unit, temperature sensor, display and input unit, high-frequency electromagnetic energy converter, electromagnetic heating plate and controller, high-frequency electromagnetic energy converter is connected with electromagnetic heating plate, and controller is connect with water flow sensing unit, temperature sensor, high-frequency electromagnetic energy converter and display and input unit respectively.Control method includes step 1: being powered on to the digital i.e. hot water structure of constant temperature energy-saving；Step 2: set water temperature desired value ... and etc..Hot water structure heating process does not generate exhaust gas in the present invention, and the feature of environmental protection is good, and heating tube quick heating, heating efficiency are high, safe to use；Control method heating speed is fast in the present invention, and the constant stabilization of output water temperature can be made in the desired value of setting, avoid delivery efficiency low and the unstable problem of water temperature.
Description
Technical field
The present invention relates to electromagnetic induction heating field, in particular to a kind of constant temperature energy-saving it is digital i.e. hot water structure and its
Control method.
Background technique
With rapid development of economy, people's living standard is increasingly promoted, while also increasingly being pursued more intelligentized
Living electric apparatus.Science and technology is constantly progressive, and is emerged one after another with people's closely bound up various household electrical appliance of living, the invention of hot water facility
It is created to people's lives and provides extremely convenient condition, the warm welcome by people.However just heat currently on the market
Water installations, mostly with resistance wire, heating tube and combustion gas etc. for pyrotoxin, these equipment have the advantages that respective, but all more or less deposit
In some disadvantages, such as safety is to be improved, not environmentally protective enough, not smart enough, energy utilization rate is low.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of constant temperature energy-saving digital i.e. hot water structure and its controlling parties
Method, to solve the problems, such as existing hot water facility in the convenient disadvantage such as safety, the feature of environmental protection, intelligence, energy utilization rate be low.
In the present invention constant temperature energy-saving it is digital i.e. hot water structure, including heating tube, water flow sensing unit, temperature sensor,
Display and input unit, high-frequency electromagnetic energy converter, electromagnetic heating plate and controller, the water flow sensing unit are arranged in heating tube
Water inlet in, the temperature sensor is arranged in the water outlet of heating tube,
The electromagnetic heating plate is arranged in heating tube, and the high-frequency electromagnetic energy converter is connected with electromagnetic heating plate, described
Controller is connect with water flow sensing unit, temperature sensor, high-frequency electromagnetic energy converter and display and input unit respectively.
Further, the high-frequency electromagnetic energy converter includes rectification circuit, inverter circuit, impedance matching network and static matching
The input terminal of capacitor, the rectification circuit connects to power supply, and the output end of rectification circuit and the input terminal of inverter circuit connect, inverse
The output end on power transformation road and the input terminal of impedance matching network connect, output end and the static matching electricity of the impedance matching network
Hold and electromagnetic coil connects；
The controller acquires water flow sensing unit signal and temperature sensor signal for real-time, and according to number collected
It works according to feedback control high-frequency electromagnetic energy converter.
Further, the display and input unit are made of charactron and physical button, and the physical button includes starting
Key is turned up temperature key, turns down temperature key.
Further, the electromagnetic heating plate is coiled by litz wire.
Further, the heating tube is S-shaped detour swan-neck.
Further, the electromagnetic heating plate is set to the side of heating tube, the controller, display and input unit setting
Thermal insulation layer is provided in the other side of heating tube, and between heating tube and controller, display and input unit.
The control method of the digital i.e. hot water structure of constant temperature energy-saving of the present invention, comprising the following steps:
Step 1: being powered on to the digital i.e. hot water structure of constant temperature energy-saving；
Step 2: set water temperature desired value Tset；
Step 3: controller acquires water flow sensing unit signal and temperature sensor signal in real time；
Step 4: detecting in plastic water pipe whether have water flow by water flow sensing unit, if so, then controller controls high-frequency electrical
Magnetic transducer work；If nothing directly terminates；
Step 5: controller controls high-frequency electromagnetic energy converter Work Incentive electromagnetic heating plate, and electromagnetic heating plate work makes to heat
Pipe heating is to flow heated water, until the temperature of water outlet outflow water flow reaches the desired value T of settingset；
Step 6: controller judges whether water temperature reaches desired value T according to the temperature sensor signal of acquisitionsetIf in real time
Water temperature is higher than water temperature desired value, then controller calculates the duty ratio for controlling to adjust and reducing inverter circuit and exporting pulse by PI, then
Return step 5；If real-time water temperature is lower than water temperature desired value, controller PI calculates control and regulation increase inverter circuit and exports pulse
Duty ratio, return again to step 5；If water temperature reaches desired value, return step 2.
Beneficial effects of the present invention:
1, the digital i.e. hot water structure of constant temperature energy-saving of the present invention, sends out heating tube using electromagnetic inductive heating principle
Then heat utilizes heating tube flow heated water, for existing utilization gas heating, heating process does not generate exhaust gas, ring
Guarantor property is good.And electromagnetic induction heating is used, heating tube heating rate is fast, heating efficiency is high, safe to use.
2, the control method of the digital i.e. hot water structure of constant temperature energy-saving of the present invention is by controller to real-time output water temperature
The analysis of data is handled, and control high-frequency electromagnetic energy converter work motivates the electromagnetic heating plate, and electromagnetic heating plate generates alternation magnetic
Field, to make the water flow in heating tube fever heating tube, guarantees that water temperature maintains expectation to induce vortex in heating tube
Value.The control method heating speed is fast, and the constant stabilization of output water temperature can be made in the desired value T of settingset, it is avoided that delivery efficiency
The low and unstable problem of water temperature.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the digital i.e. hot water structure of constant temperature energy-saving of the present invention.
Fig. 2 is the functional block diagram of the digital i.e. hot water structure of constant temperature energy-saving of the present invention.
Fig. 3 is the specific implementation functional block diagram of the digital i.e. hot water structure of constant temperature energy-saving of the present invention.
Fig. 4 is the flow diagram of the digital i.e. hot water structure control method of constant temperature energy-saving of the present invention.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
The digital i.e. hot water structure, including heating tube 1, water flow sensing unit 2, temperature sensing of constant temperature energy-saving in the present embodiment
Device 3, display and input unit, high-frequency electromagnetic energy converter, electromagnetic heating plate 4 and controller, the water flow sensing unit setting exist
In the water inlet of heating tube, the temperature sensor is arranged in the water outlet of heating tube.Heating tube in specific implementation can be with
Select copper pipe, steel pipe etc..
The electromagnetic heating plate is arranged in heating tube, and the high-frequency electromagnetic energy converter is connected with electromagnetic heating plate, described
Controller is connect with water flow sensing unit, temperature sensor, high-frequency electromagnetic energy converter and display and input unit respectively.
In the present embodiment, the high-frequency electromagnetic energy converter includes rectification circuit, inverter circuit, impedance matching network and static state
The input terminal of matching capacitance, the rectification circuit connects to power supply, and the output end of rectification circuit and the input terminal of inverter circuit connect
It connects, the output end of inverter circuit and the input terminal of impedance matching network connect, the output end and static state of the impedance matching network
Matching capacitance and electromagnetic coil connection.
The controller acquires water flow sensing unit signal and temperature sensor signal for real-time, and according to number collected
It works according to feedback control high-frequency electromagnetic energy converter.
In the present embodiment, the display and input unit are made of charactron and physical button, and charactron is for showing temperature
Degree, the physical button include start key, temperature key are turned up, turns down temperature key, realize set temperature value by physical button
It adjusts.Certainly in different embodiments, the display and input unit can also be the touch for integrating display and input function
Formula display screen.
More specifically, as shown in figure 3, the rectification circuit of the present embodiment medium-high frequency electromagnetic transducer is by 2 four diodes
(D1, D2, D3, D4) and electric capacity of voltage regulation C composition, the input terminal of rectification circuit are connect with 20V/50Hz alternating-current voltage source AC；Exchange
Generate DC voltage after electric pressuring meridian rectification circuit, inverter circuit by the driving of general full-bridge and four power switch tubes (Q1, Q2, Q3,
Q4 it) forms, DC voltage generates pulse power voltage after inverter circuit.The impedance matching network is by capacitor C1, inductance L1
It is formed with capacitor C2, the one end capacitor C1 is parallel to inverter circuit, the end capacitor C1 other end series inductance L1, inductance L1 electricity in parallel
Hold C2, the static matching capacitor is by equivalent series resistance rcIt is composed in series with capacitor Cr, then in parallel with capacitor C2, the electromagnetism
Heating dish is by resistance rLIt is composed in series with inductance Lr, then in parallel with static matching capacitor.
The present embodiment breed controller model STM32F103, controller respectively with water flow sensing unit, temperature sensing
The general full-bridge of device, display and input unit and inverter circuit is drivingly connected.There is water to flow through water flow sensing unit, high electricity will be triggered
Ordinary mail number gives controller, generates PWM wave by controller and drives inverter circuit, to motivate electromagnetic heating plate；Water outlet water flow temperature
Degree is detected through temperature sensor is sent into controller, the PWM wave that feedback control generates, to control the output work of electromagnetic heating plate
Rate, so that outlet temperature is maintained at setting desired value.
In the present embodiment, the electromagnetic heating plate is coiled by litz wire in rectangle revolution.
In the present embodiment, the heating tube is S-shaped detour swan-neck.
In the present embodiment, the electromagnetic heating plate is set on the side of heating tube, the display screen and controller setting
Thermal insulation layer is provided in the other side of heating tube, and between heating tube and the display screen and controller.Certainly in different implementations
In example, shown controller and display can also be separately positioned with heating tube.
The control method of the digital i.e. hot water structure of constant temperature energy-saving in the present embodiment, comprising the following steps:
Step 1: being powered on to the digital i.e. hot water structure of constant temperature energy-saving；
Step 2: set water temperature desired value Tset；
Step 3: controller acquires water flow sensing unit signal and temperature sensor signal in real time；
Step 4: detecting in plastic water pipe whether have water flow by water flow sensing unit, if so, then controller controls high-frequency electrical
Magnetic transducer work；If nothing directly terminates；
Step 5: controller controls high-frequency electromagnetic energy converter Work Incentive electromagnetic heating plate, and electromagnetic heating plate work makes to heat
Pipe heating is to flow heated water, until the temperature of water outlet outflow water flow reaches the desired value T of settingset；
Step 6: controller judges whether water temperature reaches desired value T according to the temperature sensor signal of acquisitionsetIf in real time
Water temperature is higher than water temperature desired value, then controller, which calculates to control to adjust by PI, reduces full-bridge driving duty ratio, even if inverter circuit
The duty ratio for exporting pulse reduces, and returns again to step 5；If real-time water temperature is lower than water temperature desired value, controller PI calculates control
It adjusts and increases full-bridge driving duty ratio, even if the duty ratio of inverter circuit output pulse increases, return again to step 5；If water temperature reaches
To desired value, then return step 2.
The control method of the digital i.e. hot water structure of constant temperature energy-saving in the present embodiment, by controller to real-time water outlet water
The analysis of warm data is handled, and control high-frequency electromagnetic energy converter work motivates the electromagnetic heating plate, and electromagnetic heating plate generates alternation
Magnetic field, to make the water flow in heating tube fever heating tube, guarantees that water temperature maintains the phase to induce vortex in heating tube
Prestige value.The control method heating speed is fast, and the constant stabilization of output water temperature can be made in the desired value T of settingset, it is avoided that output effect
Rate is low and the unstable problem of water temperature.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (7)
1. a kind of digital i.e. hot water structure of constant temperature energy-saving, it is characterised in that: passed including heating tube, water flow sensing unit, temperature
Sensor, display and input unit, high-frequency electromagnetic energy converter, electromagnetic heating plate and controller, the water flow sensing unit setting exist
In the water inlet of heating tube, the temperature sensor is arranged in the water outlet of heating tube,
The electromagnetic heating plate is arranged in heating tube, and the high-frequency electromagnetic energy converter is connected with electromagnetic heating plate, the control
Device is connect with water flow sensing unit, temperature degree sensor, high-frequency electromagnetic energy converter and display and input unit respectively.
2. the digital i.e. hot water structure of constant temperature energy-saving according to claim 1, it is characterised in that: the high-frequency electromagnetic changes
Energy device includes rectification circuit, inverter circuit, impedance matching network and static matching capacitor, the input terminal and electricity of the rectification circuit
Source connection, the output end of rectification circuit and the input terminal of inverter circuit connect, the output end and impedance matching network of inverter circuit
Input terminal connection, the output end of the impedance matching network connect with static matching capacitor and electromagnetic coil；
The controller acquires water flow sensing unit signal and temperature sensor signal for real-time, and anti-according to data collected
Feedback control high-frequency electromagnetic energy converter work.
3. the digital i.e. hot water structure of constant temperature energy-saving according to claim 1, it is characterised in that: the display and input
Device is made of charactron and physical button, and the physical button includes start key, temperature key is turned up, turns down temperature key.
4. the digital i.e. hot water structure of constant temperature energy-saving according to claim 1, it is characterised in that: the electromagnetic heating plate
It is coiled by litz wire.
5. the digital i.e. hot water structure of constant temperature energy-saving according to claim 1, it is characterised in that: the heating tube is S
Shape detour swan-neck.
6. the digital i.e. hot water structure of constant temperature energy-saving according to claim 1, it is characterised in that: the electromagnetic heating plate is set
It is placed in the side of heating tube, the other side of heating tube, and heating tube and control is arranged in the controller, display and input unit
Thermal insulation layer is provided between device, display and input unit.
7. a kind of control method of the digital i.e. hot water structure of constant temperature energy-saving described in claim 2, which is characterized in that including
Following steps:
Step 1: being powered on to the digital i.e. hot water structure of constant temperature energy-saving；
Step 2: set water temperature desired value Tset；
Step 3: controller acquires water flow sensing unit signal and temperature sensor signal in real time；
Step 4: detecting in plastic water pipe whether have water flow by water flow sensing unit, if so, then controller control high-frequency electromagnetic changes
It can device work；If nothing directly terminates；
Step 5: controller controls high-frequency electromagnetic energy converter Work Incentive electromagnetic heating plate, and electromagnetic heating plate work makes heating tube liter
Temperature is to flow heated water, until the temperature of water outlet outflow water flow reaches the desired value T of settingset；
Step 6: controller judges whether water temperature reaches desired value T according to the temperature sensor signal of acquisitionsetIf real-time water temperature
Higher than water temperature desired value, then controller calculates the duty ratio for controlling to adjust and reducing inverter circuit and exporting pulse by PI, returns again to
Step 5；If real-time water temperature is lower than water temperature desired value, controller PI, which calculates to control to adjust, increases accounting for for inverter circuit output pulse
Empty ratio, returns again to step 5；If water temperature reaches desired value, return step 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910562097.8A CN110260506A (en) | 2019-06-26 | 2019-06-26 | A kind of constant temperature energy-saving digital i.e. hot water structure and its control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910562097.8A CN110260506A (en) | 2019-06-26 | 2019-06-26 | A kind of constant temperature energy-saving digital i.e. hot water structure and its control method |
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| CN110260506A true CN110260506A (en) | 2019-09-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910562097.8A Pending CN110260506A (en) | 2019-06-26 | 2019-06-26 | A kind of constant temperature energy-saving digital i.e. hot water structure and its control method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202303841U (en) * | 2011-11-08 | 2012-07-04 | 陈少游 | Electromagnetic induction instant-heating-type electromagnetic water heater |
| CN206944448U (en) * | 2017-06-23 | 2018-01-30 | 韩庆龙 | Save instant electric water heater |
| CN109405305A (en) * | 2017-08-15 | 2019-03-01 | 山东聊城鲁发节能设备有限公司 | A kind of electromagnetical immediately heating water heater and its working method based on dsPIC |
| CN109856251A (en) * | 2019-02-25 | 2019-06-07 | 重庆大学 | A kind of electromagnet ultrasonic changer and its control method improving resonance control |
-
2019
- 2019-06-26 CN CN201910562097.8A patent/CN110260506A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202303841U (en) * | 2011-11-08 | 2012-07-04 | 陈少游 | Electromagnetic induction instant-heating-type electromagnetic water heater |
| CN206944448U (en) * | 2017-06-23 | 2018-01-30 | 韩庆龙 | Save instant electric water heater |
| CN109405305A (en) * | 2017-08-15 | 2019-03-01 | 山东聊城鲁发节能设备有限公司 | A kind of electromagnetical immediately heating water heater and its working method based on dsPIC |
| CN109856251A (en) * | 2019-02-25 | 2019-06-07 | 重庆大学 | A kind of electromagnet ultrasonic changer and its control method improving resonance control |
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Application publication date: 20190920 |