CN106642716B - A kind of gas heater water proportional valve control method - Google Patents
A kind of gas heater water proportional valve control method Download PDFInfo
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- CN106642716B CN106642716B CN201610873226.1A CN201610873226A CN106642716B CN 106642716 B CN106642716 B CN 106642716B CN 201610873226 A CN201610873226 A CN 201610873226A CN 106642716 B CN106642716 B CN 106642716B
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- water
- valve
- gas heater
- gas
- inflow
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Classifications
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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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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Feeding And Controlling Fuel (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The present invention discloses a kind of gas heater water proportional valve control method, it is characterized in that, it include: the gas ratio valve for changing gas heater air inflow, for changing the sectioning valve of gas heater firepower size, for changing the water proportioning valve of gas heater inflow, and the controller connecting with gas ratio valve, sectioning valve, water proportioning valve;Controller according to set temperature, can maximum inflow be judged automatically reach set temperature value within the set time under peak load combustion state;If it can, the motor for then controlling water proportioning valve is closed;If it is not, the motor action of control water proportioning valve turns the inflow of gas heater down.The present invention can shorten the heating time of gas heater, and easily carry out automatically controlling during bathing to water, easy to operate, promote complete machine adaptability and comfort.
Description
Technical field
The present invention relates to gas heater control technology field more particularly to a kind of gas heater water proportional valve control sides
Method.
Background technique
Gas heater supplies user's hot water and facilitates the water demands such as people's bathing as a kind of household bath electrical appliance,
When excessively high or too low compared to set temperature, when the adjusting of gas proportioning valve tolerance is unable to satisfy people's demand, people, which then pass through, to be set
It sets size water adjusting knob and adjusts water outlet, but be limited to manually adjust mode inconvenience and water flow size is controlled.
In order to solve the above technical problems, water size is automatically adjusted, to meet user by setting water ratio valve gear
The use demand of different water different temperatures, adaptability comfort are higher.In the prior art, the valve regulation of water ratio then controls stream
The aperture in road, water proportioning valve adjusting method are particularly important.The stepper motor of runner aperture is adjusted below water proportioning valve, when is motor
It adjusts, the step size of adjusting, whether constant, cause water temperature sometimes hot and sometimes cold if directly affecting water temperature.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to propose a kind of gas heater water proportional valve control side
Method solves the problems, such as that people are sometimes hot and sometimes cold by the inconvenient and existing part control mode water transfer manually adjusted, and can
It is easy to operate easily to be carried out automatically controlling during bathing to water, promote complete machine adaptability and comfort.
To achieve the above objectives, the present invention adopts the following technical scheme that.
A kind of gas heater water proportional valve control method characterized by comprising for changing gas heater air inlet
The gas ratio valve of amount, for changing the sectioning valve of gas heater firepower size, for changing gas heater inflow
Water proportioning valve, and the controller being connect with gas ratio valve, sectioning valve, water proportioning valve;Controller is according to set temperature, maximum
Can inflow is judged automatically reach set temperature value within the set time under peak load combustion state;If it can, then controlling
The motor of water proportioning valve processed is closed;If it is not, the motor action of control water proportioning valve turns the inflow of gas heater down.
As with improvement, the value range of the setting time is 5-15s.
As with improvement, when gas heater runing time exceeds setting time after, if the electric current of gas ratio valve
More than or equal to maximum value PH, then continue to judge sectioning valve whether standard-sized sheet;If sectioning valve standard-sized sheet, judges whether water is adjusted and arrive
Minimum, if it is, the motor of water proportioning valve is closed, if it is not, then inflow is transferred to minimum, with guarantee coolant-temperature gage;Such as
It is whether adjusted to maximum then to judge water for the non-standard-sized sheet of fruit sectioning valve, if it is, the motor of water proportioning valve is closed, if it is not, then
Inflow is transferred to maximum, with guarantee water water.
As with improvement, when gas heater runing time exceeds setting time after, if the electric current of gas ratio valve
Less than 85% × (PH-PL)+PL, then it is whether adjusted to maximum to judge water, if it is, closing the motor of water proportioning valve, such as
Fruit is no, then inflow is transferred to maximum, with guarantee water water;Wherein, PH represents the current maxima of gas ratio valve, PL generation
The current minimum of table gas ratio valve.
As with improvement, when gas heater runing time exceeds setting time after, if the electric current of gas ratio valve
Less than PH and be more than or equal to 85% × (PH-PL)+PL, then continue to judge sectioning valve whether standard-sized sheet;If sectioning valve standard-sized sheet,
The motor of water proportioning valve is closed, with guarantee coolant-temperature gage;If the non-standard-sized sheet of sectioning valve, judges whether water is adjusted and arrives maximum,
If it is, the motor of water proportioning valve is closed, if it is not, then inflow is transferred to maximum, with guarantee water water;Wherein, PH
The current maxima of gas ratio valve is represented, PL represents the current minimum of gas ratio valve.
As with improvement, the motor is stepper motor, the restriction method of stepper motor maximal regulated step number are as follows: 1) power on
When water proportioning valve resets, finds dead-center position and then stop walking about;If can not find zero point always, stepper motor is accumulative to go to 3000 steps
Stopping is walked about;2) can be under the conditions of normal reset, toward when small water transfer, stepper motor, which adds up to walk 1800 steps, does not go further then.
The beneficial effects of the present invention are:
One, booting judges automatically whether water proportioning valve needs to adjust, and guarantees that water heater quickly heats, shortens heating time.
Two, water size is rationally adjusted according to gas proportion valve opening, water is carried out during bathing with can be convenient
It automatically controls, it is easy to operate, complete machine adaptability and comfort are promoted, different water user comfort requirements are met, is used
Effect reaches best.
Three, it in any state, guarantees in advance that under the premise of meeting temperature, so that water is reached maximum, not only solve complete machine not
It with state water shortage, is promoted and uses water comfort, and solved the problems, such as sometimes hot and sometimes cold with water automatic adjustment complete machine.
Four, water proportioning valve stepper motor maximal regulated step number is defined, when solving existing water proportioning valve abnormal conditions,
The case where stepper motor is adjusted to minimum or maximum seized motor.
Detailed description of the invention
Fig. 1 show gas heater water proportional valve control flow chart provided by the invention.
Specific embodiment
Essence of the invention is more fully understood for convenience of those skilled in the art, with reference to the accompanying drawing to of the invention specific
Embodiment is described in detail.
A kind of gas heater water proportional valve control method, comprising: for changing the combustion gas ratio of gas heater air inflow
Example valve, for changing the sectioning valve of gas heater firepower size, for changing the water proportioning valve of gas heater inflow, with
And the controller being connect with gas ratio valve, sectioning valve, water proportioning valve.
As shown in Figure 1, specific control method are as follows:
1) can controller judge automatically and set under peak load combustion state according to set temperature, maximum inflow
Reach set temperature value in time;If it can, the motor for then controlling water proportioning valve is closed;If it is not, control water proportioning valve
Motor action turn the inflow of gas heater down.The value range of the setting time is 5-15s, excellent in the present embodiment
Selecting setting time is 10s, is not limited to the present embodiment.
2) after when gas heater runing time exceeds setting time, if the electric current of gas ratio valve is more than or equal to most
Big value PH, then continue to judge sectioning valve whether standard-sized sheet.
If sectioning valve standard-sized sheet, it is whether adjusted to minimum to judge water, if it is, the motor of water proportioning valve is closed,
If it is not, then inflow is transferred to minimum, with guarantee coolant-temperature gage.
If the non-standard-sized sheet of sectioning valve, it is whether adjusted to maximum to judge water, if it is, closing the electricity of water proportioning valve
Machine, if it is not, then inflow is transferred to maximum, with guarantee water water.
3) after when gas heater runing time exceeds setting time, if the electric current of gas ratio valve less than 85% ×
(PH-PL) it is whether adjusted to maximum then to judge water by+PL, if it is, the motor of water proportioning valve is closed, if it is not, then will
Inflow is transferred to maximum, with guarantee water water.
4) after when gas heater runing time exceeds setting time, if the electric current of gas ratio valve is less than PH and big
In being equal to 85% × (PH-PL)+PL, then continue to judge sectioning valve whether standard-sized sheet.
If sectioning valve standard-sized sheet closes the motor of water proportioning valve, with guarantee coolant-temperature gage.
If the non-standard-sized sheet of sectioning valve, it is whether adjusted to maximum to judge water, if it is, closing the electricity of water proportioning valve
Machine, if it is not, then inflow is transferred to maximum, with guarantee water water.
Wherein, PH represents the current maxima of gas ratio valve, and PL represents the current minimum of gas ratio valve.
In the present embodiment, the motor is stepper motor, the restriction method of stepper motor maximal regulated step number are as follows:
1) it when powering on the reset of water proportioning valve, finds dead-center position and then stops walking about;If can not find zero point always, stepper motor
Accumulative 3000 steps that go to stop walking about;Definition dead-center position is water ratio valve opening maximum position.
2) can be under the conditions of normal reset, toward when small water transfer, stepper motor, which adds up to walk 1800 steps, does not go further then.
Compared with prior art, a kind of gas heater water proportional valve control method provided in this embodiment has following excellent
Point: 1) booting judges automatically whether water proportioning valve needs to adjust, and guarantees that water heater quickly heats, shortens heating time.2) basis
Gas proportion valve opening rationally adjusts water size, meets different water user comforts, and using effect reaches best.3) any
Under the premise of state guarantee meets temperature, water is made to reach maximum lift water comfort.4) most to water proportioning valve stepper motor
The big step number that adjusts is defined, and when solving existing water proportioning valve abnormal conditions, stepper motor is adjusted to minimum or maximum stuck
The case where motor.If the stuck failure of water proportioning valve occurs in water heater, fault code is shown, so as to user's on-call maintenance.
The above specific embodiment is described in detail for the essence of the present invention, but can not be come with this to of the invention
Protection scope is limited.It should be evident that under the inspiration of the essence of the present invention, those of ordinary skill in the art can also be into
The many improvement and modification of row, it should be noted that these improvement and modification all fall in claims of the invention it
It is interior.
Claims (6)
1. a kind of gas heater water proportional valve control method characterized by comprising for changing gas heater air inflow
Gas ratio valve, for changing the sectioning valve of gas heater firepower size, for changing the water of gas heater inflow
Proportioning valve, and the controller being connect with gas ratio valve, sectioning valve, water proportioning valve;Controller according to set temperature, it is maximum into
Can water is judged automatically reach set temperature value within the set time under peak load combustion state;If it can, then controlling
The motor of water proportioning valve is closed;If it is not, the motor action of control water proportioning valve turns the inflow of gas heater down;
After when gas heater runing time exceeds setting time, if the electric current of gas ratio valve is more than or equal to maximum value
PH, then continue to judge sectioning valve whether standard-sized sheet;
If sectioning valve standard-sized sheet, it is whether adjusted to minimum to judge water, if it is, the motor of water proportioning valve is closed, if
It is no, then inflow is transferred to minimum, with guarantee coolant-temperature gage;
If the non-standard-sized sheet of sectioning valve, it is whether adjusted to maximum to judge water, if it is, closing the motor of water proportioning valve, such as
Fruit is no, then inflow is transferred to maximum, with guarantee water water.
2. a kind of gas heater water proportional valve control method according to claim 1, which is characterized in that when the setting
Between value range be 5-15s.
3. a kind of gas heater water proportional valve control method according to claim 1, which is characterized in that in gas and hot water
After when device runing time is beyond setting time, if the electric current of gas ratio valve judges water less than 85% × (PH-PL)+PL
It is whether adjusted to maximum, if it is, the motor of water proportioning valve is closed, if it is not, then inflow is transferred to maximum, to guarantee
With water water;Wherein, PH represents the current maxima of gas ratio valve, and PL represents the current minimum of gas ratio valve.
4. a kind of gas heater water proportional valve control method according to claim 1, which is characterized in that in gas and hot water
After when device runing time is beyond setting time, if the electric current of gas ratio valve is less than PH and is more than or equal to 85% × (PH-PL)
+ PL, then continue to judge sectioning valve whether standard-sized sheet;
If sectioning valve standard-sized sheet closes the motor of water proportioning valve, with guarantee coolant-temperature gage;
If the non-standard-sized sheet of sectioning valve, it is whether adjusted to maximum to judge water, if it is, closing the motor of water proportioning valve, such as
Fruit is no, then inflow is transferred to maximum, with guarantee water water;
Wherein, PH represents the current maxima of gas ratio valve, and PL represents the current minimum of gas ratio valve.
5. a kind of gas heater water proportional valve control method according to claim 1, which is characterized in that the motor is
Stepper motor, the restriction method of stepper motor maximal regulated step number are as follows:
1) reset of water proportioning valve is powered on, dead-center position is found and then stops walking about;It is accumulative to go to 3000 steps if can not find zero point always
Stopping is walked about;
2) can be under the conditions of normal reset, toward when small water transfer, water proportioning valve, which adds up to walk 1800 steps, does not go further then.
6. a kind of gas heater water proportional valve control method according to claim 1, which is characterized in that if water proportioning valve
There is stuck failure, shows fault code.
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CN201610873226.1A CN106642716B (en) | 2016-09-29 | 2016-09-29 | A kind of gas heater water proportional valve control method |
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CN201610873226.1A CN106642716B (en) | 2016-09-29 | 2016-09-29 | A kind of gas heater water proportional valve control method |
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CN106642716A CN106642716A (en) | 2017-05-10 |
CN106642716B true CN106642716B (en) | 2019-06-28 |
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CN201610873226.1A Expired - Fee Related CN106642716B (en) | 2016-09-29 | 2016-09-29 | A kind of gas heater water proportional valve control method |
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Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109237115B (en) * | 2017-07-10 | 2022-01-18 | 青岛经济技术开发区海尔热水器有限公司 | Adaptive adjustment method for working range of proportional valve and gas water heater |
CN113154688B (en) * | 2021-04-21 | 2022-09-13 | 瑞美(中国)热水器有限公司 | Control method of full-premixing condensing type gas positive displacement water heater and water heater |
CN113340003A (en) * | 2021-06-17 | 2021-09-03 | 东莞市艾瑞科热能设备有限公司 | Gas water heater and control method thereof |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005042952A (en) * | 2003-07-24 | 2005-02-17 | Chubu Electric Power Co Inc | Multi-functional heat pump type water heater system |
CN102072560A (en) * | 2011-01-21 | 2011-05-25 | 广东万家乐燃气具有限公司 | Hot water discharging temperature rapid-stabilizing structure of central gas water heater |
CN102778019A (en) * | 2011-05-11 | 2012-11-14 | 宁波帅康热水器有限公司 | Instantaneous gas water heater with accurate temperature control |
CN104236109A (en) * | 2013-06-24 | 2014-12-24 | 海尔集团公司 | Control method and control device of constant-temperature gas water heater |
-
2016
- 2016-09-29 CN CN201610873226.1A patent/CN106642716B/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005042952A (en) * | 2003-07-24 | 2005-02-17 | Chubu Electric Power Co Inc | Multi-functional heat pump type water heater system |
CN102072560A (en) * | 2011-01-21 | 2011-05-25 | 广东万家乐燃气具有限公司 | Hot water discharging temperature rapid-stabilizing structure of central gas water heater |
CN102778019A (en) * | 2011-05-11 | 2012-11-14 | 宁波帅康热水器有限公司 | Instantaneous gas water heater with accurate temperature control |
CN104236109A (en) * | 2013-06-24 | 2014-12-24 | 海尔集团公司 | Control method and control device of constant-temperature gas water heater |
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