CN103807843B - Control method for achieving fuzzy temperature control and function of power failure during water shortage of steam cleaner - Google Patents
Control method for achieving fuzzy temperature control and function of power failure during water shortage of steam cleaner Download PDFInfo
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- CN103807843B CN103807843B CN201410040780.2A CN201410040780A CN103807843B CN 103807843 B CN103807843 B CN 103807843B CN 201410040780 A CN201410040780 A CN 201410040780A CN 103807843 B CN103807843 B CN 103807843B
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Abstract
The invention provides a control method for achieving fuzzy temperature control and the function of power failure during water shortage of a steam cleaner. The control method is characterized by comprising the following steps that firstly, switching-on is conducted, and an electric steam generator operates at the maximum set level; secondly, the temperature of the electric steam generator is detected in real time, and if the temperature value belongs to a temperature upper limit value section for the first time after switching-on, a water pump is started to supply water; if the temperature value belongs to the temperature upper limit value section and the temperature is maintained for the duration F of the temperature upper limit value section, the operation power of the electric steam generator is adjusted to be small; if the temperature value belongs to a temperature lower limit value section and the temperature is maintained for the duration F of the temperature lower limit value section, the operation power of the electric steam generator is increased; if the temperature value belongs to the temperature upper limit value section, the temperature is maintained for the water shortage judgment duration G, and the operation power of the electric steam generator is at the minimum set level, the electric steam generator and the water pump are both controlled to stop.
Description
Technical field
The present invention relates to a kind of control method of steam cleaner.
Background technology
Along with people's living standard and quality of life improve constantly, also more and more higher to the requirement of environment cleanliness.Simultaneously along with industrial fast development, the pollution of environment is also more and more severe, and the dust in air day by day increases, and each surface, the corner that float to family are piled up, and easily causes growing of bacterium and virus, the living environment of infringement people and healthy.Under such conditions, steam cleaner also enters family at leisure, for the clean of the ground such as ceramic tile, floor such as kitchen, parlor, toilet and sterilization.
Existing steam cleaner generally includes electric steam generator, water pump and temperature controller etc.The control method of existing steam cleaner, normally adopt mechanical thermostat or electronic thermostat, preset an operating temperature, the real time temperature of electric steam generator inside is gathered with the temperature sensor of mechanical thermostat or electronic thermostat, the operating temperature of this real time temperature signal and setting is compared, if lower than the operating temperature set, the power supply connecting electric steam generator makes it heating, if higher than the operating temperature set, the power supply disconnecting electric steam generator makes it to stop heating.In steam cleaner normally works, water pump supplies water to electric steam generator always, discharge is change, discharge directly has influence on again the temperature of electric steam generator, this just causes the constantly action of mechanical thermostat or electronic thermostat, electric steam generator continues on a large scale temperature rise up and down and rises and falls, and affects service life of a machine.
Further, existing steam cleaner does not also have excessive low water level protection measure mostly, electric steam generator dry combustion method after water tank is cut off the water supply, and the time one, namely long steam generator can damage.Now also have a small amount of steam cleaner in water tank, install an excessive low water level protection mechanical switch additional, when cistern water level drops to a timing, the power supply of electric steam generator is cut off in the action of excessive low water level protection mechanical switch.This kind realizes excessive low water level protection with mechanical switch, has the following disadvantages: the setting of mechanical switch adds cost, and mechanical switch also easily misoperation occurs; And; owing to being provided with excessive low water level protection mechanical switch; electric steam generator and power-off as long as cut off the water supply; but some electric steam generator can bear short time dry combustion method in reality; heat up during dry combustion method very quick; if first by the steam generator dry combustion method preheating short time before start, and then intake, energy-conservationly to save time again.
Summary of the invention
The object of the invention is to provide a kind of fuzzy temperature control of steam cleaner and the control method of tool lack of water power down function, to realize fuzzy temperature control and lack of water power-off.
For achieving the above object, the technical solution used in the present invention is: a kind of fuzzy temperature control of steam cleaner and the control method of tool lack of water power down function, one temperature sensor and a processing module are set, utilize software prior design temperature higher limit interval, lowest temperature value interval, temperature upper limit interval retention time, lowest temperature value interval retention time and lack of water to judge the time, and the operating power of electric steam generator is set as multiple grades from small to large; Than lack of water, described temperature upper limit interval retention time and lowest temperature value interval retention time all judge that the time is short;
Described control method comprises the following steps:
The first step, start, described processing module sends instruction and controls electric steam generator with the operating power work of set maximum one-level, electric steam generator dry combustion method preheating;
Second step, described temperature sensor is utilized to detect the temperature of electric steam generator in real time, obtain should the detection signal of telecommunication of temperature, this detection signal of telecommunication input processing module is obtained real-time temperature value, and software program be constantly judged real-time described temperature value by processing module:
If described temperature value be start after drop on temperature upper limit interval first, then processing module send instruction open water pump, supply water to electric steam generator by water pump;
If described temperature value drops on temperature upper limit interval, and temperature value drops on holding time of temperature upper limit interval reaches the described temperature upper limit interval retention time, then processing module sends instruction and is turned down by the operating power of electric steam generator, specifically turn down to performance number less than former operating power set by grade in arbitrary level, but just remain on minimum one-level when former operating power is set minimum one-level;
If it is interval that described temperature value drops on lowest temperature value, and temperature value drops on holding time of lowest temperature value interval reaches the described lowest temperature value interval retention time, then processing module sends instruction and is tuned up by the operating power of electric steam generator, specifically tune up to performance number larger than former operating power set by grade in arbitrary level, but just remain on maximum one-level when former operating power is set maximum one-level;
If described temperature value drops on temperature upper limit interval, and temperature value drops on holding time of temperature upper limit interval reaches lack of water and judge the time, and now the operating power of electric steam generator is set minimum one-level, then processing module sends instruction and controls electric steam generator and water pump and all quit work.
In technique scheme, there are following further scheme and explanation:
1, in such scheme, in described second step, if described temperature value be start after drop on temperature upper limit interval first, then processing module sends instruction and opens water pump, supply water to electric steam generator by water pump, concrete water pump water supply working method is: at first, the large discharge work that water pump requires with satisfied bath dirt, incrustation scale flushing is carried out to electric steam generator, and timing, after this timing time reaches the washing time preset, processing module sends instruction, makes the flow of water pump transfer normal working flow to.This design, achieves intelligent incrustation scale pre-washing function, namely all can automatically supply water to rinse out the incrustation scale in electric steam generator by short time large discharge when each water pump is opened.
2, in such scheme, described temperature upper limit is interval, lowest temperature value is interval, temperature upper limit interval retention time and interval these parameters of retention time of lowest temperature value and the technical parameter of steam generator, the technical parameter of water pump and the sensitivity of temperature sensor and the complete machine structure of steam cleaner related, therefore need to set by the situation of reality.Usually, general only poor 1 DEG C-3 DEG C of the endpoints thereof in described temperature upper limit interval, and between the endpoints thereof in described lowest temperature value interval also general only poor 1 DEG C-3 DEG C, and between the upper end value in the lower end value in temperature upper limit interval and lowest temperature value interval general only poor several DEG C, maximum tens DEG C.The better span of described temperature upper limit interval retention time and lowest temperature value interval retention time is 1 second ~ 10 seconds, and described lack of water judges that the better span of time is 30 seconds ~ 5 minutes.
3, in such scheme, described " processing module " refers to that single-chip microcomputer, PLC, CPU, MPU etc. can the processors of write-in program.
4, in such scheme, described processing module sends the operating power that instruction tuned up or turned down electric steam generator, realizes particular by power conditioning circuitry.
Because technique scheme is used, the present invention compared with prior art has following advantages and effect:
1, the program of fuzzy temperature control and lack of water power down function combine by the present invention breakthroughly, namely achieve fuzzy temperature control and the lack of water power-off protection of intelligence with a set of control system and software, the temperature of electric steam generator in steam cleaner can be maintained highly stable state; When manually carrying out the change of steam flow adjustment and water pump water supply flow, the temperature of electric steam generator may change, but by this control method, can tuning up or turning down at once by the power of electric steam generator, carry out stable firmly temperature, make temperature remain between the interval retention time E of temperature upper limit and the interval retention time F of lowest temperature value; Simultaneously because the interval retention time E of temperature upper limit and the interval retention time F of lowest temperature value can set more close, the temperature difference of general E and F only several degrees Celsius, applies this control method, and the temperature of electric steam generator is substantially close to temperature constant state.
2, because control method of the present invention is to achieve the judgement of lack of water power-off with software program, at the start initial stage, electric steam generator carries out dry combustion method preheating, now heat up very quick, make use of dry combustion method to heat up, energy-conservationly to save time again, and the water pump water inlet at once when temperature rises to higher limit interval retention time E, the dry combustion method time is short can not damage electric steam generator.
3, because the operating valve value condition of adjusting power during temperature control in control method of the present invention is by temperature value and time value two, such design avoids close to constantly frequent movement during operating valve value.
Accompanying drawing explanation
Fig. 1 is the flow chart of embodiment of the present invention control method.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described:
Embodiment: shown in Figure 1:
A kind of fuzzy temperature control of steam cleaner and the control method of tool lack of water power down function, one temperature sensor and a processing module are set, utilize software prior design temperature higher limit interval, lowest temperature value interval, the interval retention time F of the interval retention time E of temperature upper limit, lowest temperature value, lack of water to judge time G and washing time H.Than lack of water, the interval retention time E of described temperature upper limit and the interval retention time F of lowest temperature value all judges that time G is short; The better span of the interval retention time E of described temperature upper limit and the interval retention time F of lowest temperature value is 1 second ~ 10 seconds, and described lack of water judges that the better span of time G is 30 seconds ~ 5 minutes.As specifically, design temperature higher limit interval is 108 DEG C-110 DEG C, and lowest temperature value interval is 103 DEG C-104 DEG C, and the interval retention time E of temperature upper limit is 5 seconds, and the interval retention time F of lowest temperature value is 5 seconds, and lack of water judges that time G is 1 minute.
In advance the operating power of electric steam generator is set as multiple grades from small to large.As, specifically the operating power of electric steam generator is set as 6 grades, as 350W, 600 W, 900 W, 1100 W, 1300 W, 1500 W.In reality, the progression of setting is not limit, be generally more than three grades and three grades all relatively good.In reality, in this grade, minimum one-level is the minimum power that electric steam generator can effectively work, heat-insulating property of this performance number and environment temperature, electric steam generator etc. is all relevant, and the maximum one-level in this grade can be set to the rated power of electric steam generator usually.
Described control method comprises the following steps:
The first step, start, described processing module sends instruction and controls electric steam generator with the operating power work of set maximum one-level, and namely 1500W operates at full capacity, electric steam generator dry combustion method preheating;
Second step, described temperature sensor is utilized to detect the temperature of electric steam generator in real time, obtain should the detection signal of telecommunication of temperature, this detection signal of telecommunication input processing module is obtained real-time temperature value, and software program be constantly judged real-time described temperature value by processing module:
If described temperature value is drop on interval 108 DEG C-110 DEG C of temperature upper limit first after start, then processing module sends instruction and opens water pump, supplies water by water pump to electric steam generator; Concrete water pump water supply working method is: at first, the large discharge work that water pump requires with satisfied bath dirt, incrustation scale flushing is carried out to electric steam generator, and timing, after this timing time reaches the washing time H preset, processing module sends instruction, makes the flow of water pump transfer normal working flow to;
If described temperature value drops on interval 108 DEG C-110 DEG C of temperature upper limit, and temperature value drops on holding time of interval 108 DEG C-110 DEG C of temperature upper limit reaches described temperature upper limit interval retention time E(5 second), then processing module sends instruction and is turned down by the operating power of electric steam generator, specifically turn down to performance number less than former operating power set by grade in arbitrary level, but just remain on minimum one-level when former operating power is set minimum one-level; Concrete: if former operating power is 1500W before adjustment, that can be adjusted to the random arbitrary level in 350W, 600 W, 900 W, 1100 W, 1300 W Pyatyis specifically; If former operating power is 1300W before adjustment, that can be adjusted to any one the random level in 350W, 600 W, 900 W, 1100 level Four specifically; If former operating power is 600W before adjustment, that can be adjusted to this one-level of 350W specifically; If former operating power is 350W before adjustment, that just keeps 350W specifically;
If described temperature value drops on interval 103 DEG C-104 DEG C of lowest temperature value, and temperature value drops on holding time of interval 103 DEG C-104 DEG C of lowest temperature value reaches described lowest temperature value interval retention time F(5 second), then processing module sends instruction and is tuned up by the operating power of electric steam generator, specifically tune up to performance number larger than former operating power set by grade in arbitrary level, but just remain on maximum one-level when former operating power is set maximum one-level; Concrete: if former operating power is 350W before adjustment, that can be adjusted to the random arbitrary level in 600 W, 900 W, 1100 W, 1300 W and 1500W Pyatyis specifically; If former operating power is 1100W before adjustment, that can be adjusted to any one the random level in 1300W, 1500 W two-stages specifically; If former operating power is 1300W before adjustment, that can be adjusted to this one-level of 1500W specifically; If former operating power is 1500W before adjustment, that just keeps 1500W specifically;
If described temperature value drops on temperature upper limit interval, and temperature value drops on holding time of temperature upper limit interval reaches lack of water and judge time G(1 minute), and now the operating power of electric steam generator is set minimum one-level and 350W, then think now for exsiccosis, then processing module sends instruction and controls electric steam generator and water pump all quits work.
Described processing module can be that single-chip microcomputer, PLC, MPU etc. can the processors of write-in program.
During application work of the present invention, after user's start, circuit ON, steam generator first works with maximum one-level power 1500W, and carry out dry combustion method preheating, the temperature of electric steam generator rises rapidly, when reaching interval 108 DEG C-110 DEG C of temperature upper limit by processing module first through the temperature of temperature sensor perception electric steam generator, then processing module generation instruction unlatching water pump supplies water to electric steam generator, water enters electric steam generator inside, entering of water will inevitably make electric steam generator internal temperature reduce, therefore electric steam generator may still with maximum one-level 1500W power work, temperature upper limit interval retention time E(5 second is met) when the temperature of electric steam generator rises to heavily again temperature upper limit interval 108 DEG C-110 DEG C and retention time, then processing module sends instruction and turns the operating power of electric steam generator down to the random one-level in the Pyatyi of below 1500W, as 600W, electric steam generator temperature is declined, as the region of temperature just in time between 108 DEG C-110 DEG C, temperature upper limit interval and interval 103 DEG C-104 DEG C of lowest temperature value, then keep, if but temperature drops to lowest temperature value interval 103 DEG C-104 DEG C and retention time meets lowest temperature value interval retention time F(5 second), then processing module generation instruction tune up the operating power of electric steam generator at different levels to more than 600W in random one-level, as 900W, the temperature of electric steam generator rises thereupon, reciprocal with this.
When in water tank, water drains lack of water, electric steam generator dry combustion method must heat up rapidly, the temperature of electric steam generator can rise rapidly, due to the effect of said procedure, minimum one-level 350W can be down to by the very fast operating power by electric steam generator, but now temperature still maintains interval 108 DEG C-110 DEG C of temperature upper limit, time G(1 minute is judged) when the retention time meets lack of water, so little power temperature but can maintain temperature upper limit interval so long, necessarily dry combustion method situation thus be judged as exsiccosis, namely processing module sends instruction and controls electric steam generator and water pump and all quit work and namely shut down, person to be used adds water.
The present invention is after start preheating, and the initial elder generation that water pump is opened is with maximum stream flow or close to maximum stream flow work, and supply water in a large number to electric steam generator, the steam port of electric steam generator directly flows out water, achieves flushing to the incrustation scale of electric steam generator inner chamber; After reaching setting-up time when rinsing, processing module transfers water pump to normal operating conditions, namely returns to normal flow work, and electric steam generator also transfers normal condition steam port ejection steam to.This designs equal auto-flushing when making each starting mode of pump and once, ensures that the inner incrustation scale of electric steam generator can not be piled up.
Above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (2)
1. the fuzzy temperature control of a steam cleaner and the control method of tool lack of water power down function, it is characterized in that: a temperature sensor and a processing module are set, utilize software prior design temperature higher limit interval, lowest temperature value interval, temperature upper limit interval retention time (E), the interval retention time (F) of lowest temperature value and lack of water to judge the time (G), and the operating power of electric steam generator is set as multiple grades from small to large; Than lack of water, the interval retention time (E) of described temperature upper limit and the interval retention time (F) of lowest temperature value all judge that the time (G) is short;
Described control method comprises the following steps:
The first step, start, described processing module sends instruction and controls electric steam generator with the operating power work of set maximum one-level, electric steam generator dry combustion method preheating;
Second step, described temperature sensor is utilized to detect the temperature of electric steam generator in real time, obtain should the detection signal of telecommunication of temperature, this detection signal of telecommunication input processing module is obtained real-time temperature value, and software program be constantly judged real-time described temperature value by processing module:
If described temperature value be start after drop on temperature upper limit interval first, then processing module send instruction open water pump, supply water to electric steam generator by water pump;
If described temperature value drops on temperature upper limit interval, and temperature value drops on holding time of temperature upper limit interval reaches the interval retention time (E) of described temperature upper limit, then processing module sends instruction and is turned down by the operating power of electric steam generator, specifically turn down to performance number less than former operating power set by grade in arbitrary level, but just remain on minimum one-level when former operating power is set minimum one-level;
If it is interval that described temperature value drops on lowest temperature value, and temperature value drops on holding time of lowest temperature value interval reaches the interval retention time (F) of described lowest temperature value, then processing module sends instruction and is tuned up by the operating power of electric steam generator, specifically tune up to performance number larger than former operating power set by grade in arbitrary level, but just remain on maximum one-level when former operating power is set maximum one-level;
If described temperature value drops on temperature upper limit interval, and temperature value drops on holding time of temperature upper limit interval reaches lack of water and judge the time (G), and now the operating power of electric steam generator is set minimum one-level, then processing module sends instruction and controls electric steam generator and water pump and all quit work.
2. the fuzzy temperature control of steam cleaner according to claim 1 and the control method of tool lack of water power down function, it is characterized in that: in described second step, if described temperature value be start after drop on temperature upper limit interval first, then processing module sends instruction and opens water pump, supply water to electric steam generator by water pump, concrete water pump water supply working method is: at first, the large discharge work that water pump requires with satisfied bath dirt, incrustation scale flushing is carried out to electric steam generator, and timing, after this timing time reaches the washing time (H) preset, processing module sends instruction, the flow of water pump is made to transfer normal working flow to.
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| CN103807843B true CN103807843B (en) | 2015-04-29 |
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| CN110960073B (en) * | 2019-11-26 | 2021-05-11 | 九阳股份有限公司 | Steam output control method of food processor and food processor |
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| CN101320276A (en) * | 2008-06-30 | 2008-12-10 | 宁波大学 | Electronic control system and control method of electric kettle |
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2014
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Patent Citations (7)
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|---|---|---|---|---|
| JPH06147403A (en) * | 1992-11-13 | 1994-05-27 | Mitsubishi Heavy Ind Ltd | Pressure-temperature controller |
| JPH07233903A (en) * | 1994-02-23 | 1995-09-05 | Mitsubishi Heavy Ind Ltd | Temperature rising controlling method for boiler at start-up |
| CN101294575A (en) * | 2008-06-11 | 2008-10-29 | 陈立楠 | Intelligent temperature-controlling water supply system of water pump |
| CN101320276A (en) * | 2008-06-30 | 2008-12-10 | 宁波大学 | Electronic control system and control method of electric kettle |
| CN202257325U (en) * | 2011-10-14 | 2012-05-30 | 深圳市卓先实业有限公司 | Energy saving heating control device for electrical steam bath apparatus |
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