CN104676900B - Gas heater and its control method - Google Patents
Gas heater and its control method Download PDFInfo
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- CN104676900B CN104676900B CN201510024033.4A CN201510024033A CN104676900B CN 104676900 B CN104676900 B CN 104676900B CN 201510024033 A CN201510024033 A CN 201510024033A CN 104676900 B CN104676900 B CN 104676900B
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Abstract
The invention discloses a kind of gas heater, the gas heater includes：The water proportioning valve of gas ratio valve and regulation water level；Water pump, water pump is arranged on the inlet pipeline of gas heater, for regulating water flow；Water flow sensor, for detecting flow of inlet water；Temperature sensor, for detecting leaving water temperature；Controller, controller is controlled to adjust the temperature and flow of output water according to leaving water temperature and flow of inlet water to water proportioning valve, gas ratio valve and water pump.The gas heater of the present invention can be with regulating water flow, it is ensured that use coolant-temperature gage, improves comfortableness.The present invention also proposes a kind of control method of gas heater.
Description
Technical field
The present invention relates to field of household appliances, more particularly, to the controlling party of a kind of gas heater, and the gas heater
Method.
Background technology
With the fast development of water heater, user requires to improve constantly to the comfortableness of water heater.To ensure leaving water temperature
Requirement, it is possible to use gas ratio valve constant temperature and water proportioning valve constant temperature are realized.Under conditions of water abundance, gas are sufficient, completely
Constant temperature requirement can be reached.But, usually can be excessive because of minimum load in the place of water shortage, cause leaving water temperature too high, nothing
Method is used.And hydraulic pressure is low, water is few and has a strong impact on the comfortableness used.
In addition, most domestic enterprise has all developed the double water heaters adjusted of aqueous vapor, by gas ratio valve constant temperature and
Water proportioning valve is controlled to leaving water temperature, reaches the requirement of leaving water temperature.But there are still some problems, for example, water
During proportional valve control current, water-carrying capacity, lowest temperature rise, because causing to be protected with water comfortableness can only be reduced as requested
Card.
The content of the invention
It is contemplated that at least solving one of technical problem present in prior art to a certain extent.Therefore, this hair
A bright purpose is to provide a kind of gas heater, and the gas heater can be with regulating water flow, it is ensured that use coolant-temperature gage, carries
It is high-comfort.
It is another object of the present invention to propose a kind of control method of gas heater.
To reach above-mentioned purpose, one aspect of the present invention embodiment proposes a kind of gas heater, and the gas heater includes：
The water proportioning valve of gas ratio valve and regulation water level；Water pump, the water pump is arranged on the inlet pipeline of gas heater, is used for
Regulating water flow；Water flow sensor, for detecting flow of inlet water；Temperature sensor, for detecting leaving water temperature；Controller,
The controller enters according to the leaving water temperature and flow of inlet water to the water proportioning valve, the gas ratio valve and the water pump
Row control exports the temperature and flow of water to adjust.
Gas heater according to embodiments of the present invention, for descaling line pressure is too low or water-carrying capacity is too small or lowest temperature
The problem of rising high influence comfortableness, controller by according to flow of inlet water and leaving water temperature to gas ratio valve, water ratio
Valve and water pump carry out appropriate control, it is possible to achieve the control to water-carrying capacity and water temperature, meet user's request, improve comfortableness.
Specifically, when the flow of inlet water is less than setting water-carrying capacity, the controller controls the starting mode of pump to increase
Big hydraulic pressure, so that flow of inlet water reaches the setting water-carrying capacity.
When leaving water temperature is more than preset temperature, the controller controls the starting mode of pump and controls the water proportioning valve
Water level is adjusted to increase water-carrying capacity.
When water-carrying capacity is more than setting water-carrying capacity, the controller controls the water pump not start and control the water ratio
Valve regulation water level is to reduce flow of inlet water.
The controller is additionally operable to calculate total Water according to the flow of inlet water, and reaches said preset amount of water in the total Water
When, control the water proportioning valve to close to cut off water inlet, so as to realize that determining water supplies water.
To reach above-mentioned Hu purpose, another aspect of the present invention embodiment proposes a kind of control method of gas heater, institute
Stating gas heater includes gas ratio valve, water proportioning valve, water pump, water flow sensor, temperature sensor and controller, described
Control method comprises the following steps：Flow of inlet water is detected by the water flow sensor, and passes through the temperature detector
Detect leaving water temperature；The controller is according to the flow of inlet water and leaving water temperature to the gas ratio valve, the water ratio
Valve and the water pump are controlled.
The control method of gas heater according to embodiments of the present invention, it is too low or water-carrying capacity is too small for descaling line pressure
Or lowest temperature rise excessively high influence comfortableness the problem of, by according to flow of inlet water and leaving water temperature to gas ratio valve, water
Proportioning valve and water pump carry out appropriate control, it is possible to achieve the control to water-carrying capacity and water temperature, meet user's request, improve combustion gas
The comfortableness of water heater.
Wherein, the controller according to the flow of inlet water and leaving water temperature to the gas ratio valve, the water ratio
Valve and the water pump are controlled and specifically included：When the flow of inlet water is less than setting water-carrying capacity, the controller controls institute
Starting mode of pump is stated to increase hydraulic pressure, so that flow of inlet water reaches the setting water-carrying capacity.
When leaving water temperature is more than preset temperature, the controller controls the starting mode of pump and controls the water proportioning valve
Water level is adjusted to increase water-carrying capacity.
When water-carrying capacity is more than setting water-carrying capacity, the controller controls the water pump not start and control the water ratio
Valve regulation water level is to reduce flow of inlet water.
The controller calculates total water current amount according to the flow of inlet water, and reaches default water-carrying capacity in the total water current amount
When, control the water proportioning valve to close to cut off water inlet, so as to realize the water supply for determining water.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become from description of the accompanying drawings below to embodiment is combined
Substantially and be readily appreciated that, wherein：
Fig. 1 is the schematic diagram of gas heater according to embodiments of the present invention；
Fig. 2 is the flow chart of the control method of gas heater according to an embodiment of the invention；And
Fig. 3 is the flow chart of the control method of the gas heater of a specific embodiment according to the present invention.
Reference：
Gas heater 100；
Gas ratio valve 10, water proportioning valve 20, water pump 30, temperature sensor 40, heat exchanger portion fill 50.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In the description of the invention, unless otherwise indicated, " multiple " are meant that two
Individual or two or more.
In the description of the invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ",
" fixation " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be machinery
Connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, can be two elements
Internal connection or the interaction relationship of two elements.For the ordinary skill in the art, can be with concrete condition
Understand the concrete meaning of above-mentioned term in the present invention.
Below with reference to the accompanying drawings gas heater according to embodiments of the present invention and its control method are described.
The gas heater of the embodiment of the present invention is illustrated first.Gas heater according to embodiments of the present invention
100, as shown in figure 1, including：Gas ratio valve 10, water proportioning valve 20, water pump 30, water flow sensor, the and of temperature sensor 40
Controller.
Wherein, gas ratio valve 10 is used to adjust air inlet, and water proportioning valve 20 is used to adjust water level, for example, close water route or
Person adjusts aperture to adjust that water level class such as hydraulic pressure is low, in hydraulic pressure or high three class of hydraulic pressure.As shown in figure 1, passing through water
Proportioning valve 20 adjusts the water inlet entered in gas heater 100, and the regulation heating flame of gas ratio valve 10, cold water passes through combustion gas
Heat exchanger portion in water heater 100 fills 50 carry out heat exchanges, and cold water heat absorption is output as hot water, by adjusting the He of water proportioning valve 20
Gas ratio valve 10 can realize the regulation to output water and temperature, but some that still can be deposited in the related art are asked
Topic, for example, because water shortage causes hydraulic pressure small, and then water-carrying capacity is small, or minimum meets excessive, causes leaving water temperature too high, relaxes
Adaptive is reduced.
Water pump 30 is set in the gas heater 100 of the embodiment of the present invention, as shown in figure 1, water pump 30 is arranged at combustion gas heat
On the inlet pipeline of hydrophone 100, for regulating water flow.In the case where water-carrying capacity is inadequate, the increase water of water pump 30 can be started
Pressure, and then reach the water-carrying capacity of needs.
Water flow sensor is used to detect flow of inlet water, for example, can be arranged on inlet pipeline.Temperature sensor 40 is used
In detection leaving water temperature, as shown in figure 1, can be arranged on outlet pipe.
And then, controller enters according to leaving water temperature and flow of inlet water to water proportioning valve 20, gas ratio valve 10 and water pump 30
Row control exports the temperature and flow of water to adjust.That is, the gas heater 100 of the embodiment of the present invention passes through water ratio
The suitable control of valve 20, gas ratio valve 10 and water pump 30 realizes the regulation to water-carrying capacity and temperature, for example, on the ground of water shortage
Side, when hydraulic pressure is too small, can make water-carrying capacity reach default water-carrying capacity by the control of water proportioning valve 20 and water pump 30, or right
In causing minimum temperature too high because minimum load is excessive, when temperature can not be reduced, water pump 30 and water proportioning valve 20 can be passed through
Improving water-carrying capacity reduces minimum leaving water temperature with deflecting.
Gas heater 100 according to embodiments of the present invention, controller is according to leaving water temperature and flow of inlet water to water ratio
Example valve 20, gas ratio valve 10 and water pump 30 carry out appropriate control, and leaving water temperature and water flow are adjusted, pass through water
The regulation of pump 30 and water proportioning valve 20 can carry out accurate control such as problems of liquid flow or hydraulic pressure problem or fixed to water-carrying capacity
The problems such as amount water, the water-carrying capacity and water temperature of user's needs are met, comfortableness is high.
The process of the regulating water flow of gas heater 100 of the embodiment of the present invention and water temperature will be carried out specifically below
It is bright.
Specifically, for descaling line pressure is too low or the problem of too small water-carrying capacity, for example, current water-carrying capacity is detected, with setting
Water-carrying capacity is compared, hydraulic pressure it is low i.e. water-carrying capacity it is inadequate when, that is to say, that flow of inlet water be less than setting water-carrying capacity when, control
Device control water pump 30 starts to increase hydraulic pressure, so that flow of inlet water reaches setting water-carrying capacity.
For lowest temperature rise it is too high the problem of, for example, because minimum load is excessive, grasped by the gas circuit of gas heater 100
Make feedback contrast and temperature is set, when leaving water temperature is more than preset temperature, temperature can not be reduced, then controller control water pump 30 is opened
Move and control water proportioning valve 20 to adjust water level to increase water-carrying capacity, water is increased by starting water pump 30 and control water proportioning valve 20
Position, and then water-carrying capacity is improved, leaving water temperature in a disguised form is reduced, so as to ensure that leaving water temperature is comfortable.
In addition, the gas heater 100 of the embodiment of the present invention can also realize quantitative heat production water, specifically, controller root
Total Water is calculated according to flow of inlet water, for example, total inflow can be calculated according to flow of inlet water and flooding time, and in total Water
When reaching said preset amount of water, control water proportioning valve 20 is closed to cut off water inlet, so as to realize the use for determining water, saves the energy.
In addition, when water-carrying capacity is more than setting water-carrying capacity, controller control water pump 30 does not start and controls water proportioning valve 20
Water level is adjusted to reduce flow of inlet water, for example, adjusts water level class, from the high gear of hydraulic pressure be reduced to hydraulic pressure in gear to subtract
Few water-carrying capacity.As can be seen that realizing the regulation for determining water-carrying capacity by the control to water pump 30 and water proportioning valve 20, water is determined in realization
Flow supplies water.Furthermore it is also possible to which by strictly contrasting water-carrying capacity, controller determines water-carrying capacity by controlling gas ratio valve 10 to realize
With the water supply of temperature.
In summary, gas heater 100 according to embodiments of the present invention, for descaling line pressure is too low or water-carrying capacity mistake
Small or lowest temperature rise excessively high influence comfortableness the problem of, controller by according to flow of inlet water and leaving water temperature to combustion gas ratio
Example valve 10, water proportioning valve 20 and water pump 30 carry out appropriate control, it is possible to achieve the control to water-carrying capacity and water temperature, in addition, can
To realize the water supply for determining water and temperature, comfortableness is improved.
Gas heater based on above-described embodiment, another aspect of the present invention embodiment proposes a kind of control of gas heater
Method processed.Wherein, gas heater include gas ratio valve, water proportioning valve, water pump, water flow sensor, temperature sensor and
Controller.
Fig. 2 is the flow chart of the control method of the gas heater according to one embodiment of the present of invention, as shown in Fig. 2
The control method comprises the following steps：
S1, detects flow of inlet water, and detect leaving water temperature by temperature detector by water flow sensor.
Water flow sensor can be for example arranged on inlet pipeline.Temperature sensor can be arranged on outlet pipe.
S2, controller is controlled according to flow of inlet water and leaving water temperature to gas ratio valve, water proportioning valve and water pump.
That is, being realized the suitable control of water proportioning valve, gas ratio valve and water pump to water-carrying capacity by controller
With the regulation of temperature, for example, in the place of water shortage, when hydraulic pressure is too small, water can be made by the control of water proportioning valve and water pump
Flow reaches default water-carrying capacity, or for causing minimum temperature too high because minimum load is excessive, can when temperature can not be reduced
Minimum leaving water temperature is reduced with deflecting to improve water-carrying capacity by water pump and water proportioning valve.
The control method of gas heater according to embodiments of the present invention, by controller according to leaving water temperature and water inlet
Flow carries out appropriate control to water proportioning valve, gas ratio valve and water pump, and leaving water temperature and water flow are adjusted, and leads to
Accurate control such as problems of liquid flow or hydraulic pressure problem or fixed can be carried out to water-carrying capacity by crossing the regulation of water pump and water proportioning valve
The problems such as amount water, the water-carrying capacity and water temperature of user's needs are met, improve comfortableness.
The control process to the gas heater of the embodiment of the present invention is specifically described below.
Specifically, for descaling line pressure is too low or the problem of too small water-carrying capacity, for example, current water-carrying capacity is detected, with setting
Water-carrying capacity is compared, hydraulic pressure it is low i.e. water-carrying capacity it is inadequate when, that is to say, that flow of inlet water be less than setting water-carrying capacity when, control
Device controls starting mode of pump to increase hydraulic pressure, so that flow of inlet water reaches setting water-carrying capacity.
For lowest temperature rise it is too high the problem of, for example, because minimum load is excessive, being operated instead by the gas circuit of gas heater
Feedback contrast sets temperature, and when leaving water temperature is more than preset temperature, temperature can not be reduced, then controller controls starting mode of pump and controlled
Water ratio valve regulation water level processed increases water level, and then improve to increase water-carrying capacity by starting water pump and control water proportioning valve
Water-carrying capacity, in a disguised form reduces leaving water temperature, so as to ensure that leaving water temperature is comfortable.
In addition, controller can calculate total Water according to flow of inlet water, such as when can be according to flow of inlet water and water inlet
Between calculate total inflow, and when total Water reaches said preset amount of water, control water proportioning valve closes to cut off water inlet, so as to realize calmly
The use of water, saves the energy.
In addition, when water-carrying capacity is more than setting water-carrying capacity, controller control water pump does not start and controls water ratio valve regulation
Water level for example adjusts water level class to reduce flow of inlet water, from the high gear of hydraulic pressure be reduced to hydraulic pressure in gear to reduce water
Flow.As can be seen that realizing the regulation for determining water-carrying capacity by the control to water pump and water proportioning valve, water-carrying capacity confession is determined in realization
Water.Furthermore it is also possible to by strictly contrasting water-carrying capacity, controller is by controlling gas ratio valve to realize to determine water-carrying capacity and temperature
Supply water.
The control method of the gas heater of the embodiment of the present invention is illustrated below by a specific embodiment.Such as
Shown in Fig. 3, control method is specifically included：
S100, current pass through gas heater.
For example user opens tap, starts to use water.
S200, gas heater is cleaned before carrying out.
S300, gas heater carries out self detection.
S400, is lighted a fire.
Gentle dataway operation is operated to carry out by water respectively, wherein, water route operation carries out step S500, and gas circuit operation is walked
Rapid S1100.
S500, detects water-carrying capacity.
S600, judges whether water-carrying capacity is sufficient.
Such as water-carrying capacity is compared with default water-carrying capacity, when water-carrying capacity is not enough, step S700 is carried out, in water-carrying capacity mistake
When big, step S900 is carried out.
S700, controls starting mode of pump.
S800, water pump steady operation.
S900, controls water ratio valve regulation water level class.
S1000, water proportioning valve with determine water level class work.
S1100, gas ratio valve inhales valve.
S1200, burning.
The return to step S1100 if not burning.
S1300, gas proportion valve opening is compared to determine by leaving water temperature and preset temperature.
Wherein, water proportioning valve and gas ratio valve can set priority acccess control, reach mutual control.
S1400, gas ratio valve steady operation.
S1500, gas heater is worked with determining water-carrying capacity and determining water temperature.
The control method of gas heater according to embodiments of the present invention, it is too low or water-carrying capacity is too small for descaling line pressure
Or lowest temperature rise excessively high influence comfortableness the problem of, controller by according to flow of inlet water and leaving water temperature to gas proportion
Valve, water proportioning valve and water pump carry out appropriate control, it is possible to achieve the control to water-carrying capacity and water temperature, determine furthermore it is possible to realize
The water supply of water and temperature, improves comfortableness.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or the feature that the embodiment or example are described
It is contained at least one embodiment of the present invention or example.In this manual, the schematic representation of above-mentioned term is differed
Surely identical embodiment or example are referred to.Moreover, specific features, structure, material or the feature of description can be any
Combined in an appropriate manner in one or more embodiments or example.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
In the case of departing from the principle and objective of the present invention a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The scope of invention is limited by claim and its equivalent.
Any process described otherwise above or method description are construed as in flow chart or herein, represent to include
Module, fragment or the portion of the code of one or more executable instructions for the step of realizing specific logical function or process
Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not be by shown or discussion suitable
Sequence, including according to involved function by it is basic simultaneously in the way of or in the opposite order, carry out perform function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
Represent in flow charts or logic and/or step described otherwise above herein, for example, being considered use
In the order list for the executable instruction for realizing logic function, it may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (such as computer based system including the system of processor or other can be held from instruction
The system of row system, device or equipment instruction fetch and execute instruction) use, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicate, propagate or pass
Defeated program is for instruction execution system, device or equipment or the dress for combining these instruction execution systems, device or equipment and using
Put.The more specifically example (non-exhaustive list) of computer-readable medium includes following：Electricity with one or more wirings
Connecting portion (electronic installation), portable computer diskette box (magnetic device), random access memory (RAM), read-only storage
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, can even is that can be in the paper of printing described program thereon or other are suitable for computer-readable medium
Medium, because can then enter edlin, interpretation or if necessary with it for example by carrying out optical scanner to paper or other media
His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each several part of the present invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned
In embodiment, the software that multiple steps or method can in memory and by suitable instruction execution system be performed with storage
Or firmware is realized.If, and in another embodiment, can be with well known in the art for example, realized with hardware
Any one of row technology or their combination are realized：With the logic gates for realizing logic function to data-signal
Discrete logic, the application specific integrated circuit with suitable combinational logic gate circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that to realize all or part of step that above-described embodiment method is carried
Rapid to can be by program to instruct the hardware of correlation to complete, described program can be stored in a kind of computer-readable storage medium
In matter, the program upon execution, including one or a combination set of the step of embodiment of the method.
Claims (4)
1. a kind of gas heater, it is characterised in that including：
The water proportioning valve of gas ratio valve and regulation water level；
Water pump, the water pump is arranged on the inlet pipeline of gas heater, for regulating water flow；
Water flow sensor, for detecting flow of inlet water；
Temperature sensor, for detecting leaving water temperature；
Controller, the controller is according to the leaving water temperature and flow of inlet water to the water proportioning valve, the gas ratio valve
It is controlled with the water pump to adjust the temperature and flow of output water, wherein,
When the flow of inlet water is less than setting water-carrying capacity, the controller controls the starting mode of pump to increase hydraulic pressure, so that
Flow of inlet water reaches the setting water-carrying capacity；
The controller is additionally operable to calculate total Water according to the flow of inlet water, and when the total Water reaches said preset amount of water,
The water proportioning valve is controlled to close to cut off water inlet；
When water-carrying capacity is more than setting water-carrying capacity, the controller controls the water pump not start and controls the water proportioning valve to adjust
Position is economized on water to reduce flow of inlet water.
2. gas heater as claimed in claim 1, it is characterised in that when leaving water temperature is more than preset temperature, the control
Device processed controls the starting mode of pump and controls the water ratio valve regulation water level to increase water-carrying capacity.
3. a kind of control method of gas heater, it is characterised in that the gas heater includes gas ratio valve, water ratio
Valve, water pump, water flow sensor, temperature sensor and controller, the control method comprise the following steps：
Flow of inlet water is detected by the water flow sensor, and leaving water temperature is detected by the temperature detector；
The controller is according to the flow of inlet water and leaving water temperature to the gas ratio valve, the water proportioning valve and the water
Pump is controlled, wherein,
When the flow of inlet water is less than setting water-carrying capacity, the controller controls the starting mode of pump to increase hydraulic pressure, so that
Flow of inlet water reaches the setting water-carrying capacity；
The controller calculates total water current amount according to the flow of inlet water, and when the total water current amount reaches default water-carrying capacity,
The water proportioning valve is controlled to close to cut off water inlet；
When water-carrying capacity is more than setting water-carrying capacity, the controller controls the water pump not start and controls the water proportioning valve to adjust
Position is economized on water to reduce flow of inlet water.
4. the control method of gas heater as claimed in claim 3, it is characterised in that also include：
When leaving water temperature is more than preset temperature, the controller controls the starting mode of pump and controls the water ratio valve regulation
Water level is to increase water-carrying capacity.
Priority Applications (1)
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| CN201510024033.4A CN104676900B (en) | 2015-01-16 | 2015-01-16 | Gas heater and its control method |
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|---|---|---|---|
| CN201510024033.4A CN104676900B (en) | 2015-01-16 | 2015-01-16 | Gas heater and its control method |
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| CN104676900B true CN104676900B (en) | 2017-10-27 |
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