CN108469120A - A kind of adjusting method and system of gas secondary pressure - Google Patents
A kind of adjusting method and system of gas secondary pressure Download PDFInfo
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- CN108469120A CN108469120A CN201810158540.0A CN201810158540A CN108469120A CN 108469120 A CN108469120 A CN 108469120A CN 201810158540 A CN201810158540 A CN 201810158540A CN 108469120 A CN108469120 A CN 108469120A
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- 238000000034 method Methods 0.000 title claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 98
- 230000001105 regulatory effect Effects 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims description 133
- 239000000567 combustion gas Substances 0.000 claims description 15
- 230000005611 electricity Effects 0.000 claims description 8
- 239000002737 fuel gas Substances 0.000 claims description 6
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 239000008236 heating water Substances 0.000 description 36
- 238000004590 computer program Methods 0.000 description 8
- 238000002485 combustion reaction Methods 0.000 description 7
- 238000003860 storage Methods 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 239000003546 flue gas Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000004891 communication Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/12—Arrangement or mounting of control or safety devices
- F24C3/126—Arrangement or mounting of control or safety devices on ranges
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
The invention discloses a kind of adjusting methods of gas secondary pressure, including：When detecting that secondary pressure range is preset in gas secondary pressure offset, is pressed according to the gas secondary and adjust rotation speed of fan；It repeats the steps of when leaving water temperature meets preset temperature range or proportioning valve electric current reaches preset proportioning valve current limit value：When detecting that leaving water temperature is unsatisfactory for preset temperature range, judge proportioning valve electric current whether in the range of preset proportioning valve electric current；When in the range of proportioning valve electric current is not in preset ratio valve electric current, proportioning valve electric current is adjusted according to the difference of leaving water temperature and preset temperature range；When detecting that current rotation speed of fan is mismatched with current gas secondary pressure, current rotation speed of fan is adjusted according to current gas secondary pressure.The present invention also provides a kind of regulating systems of gas secondary pressure.Ensure no matter complete machine runs under which kind of air pressure, gas secondary pressure matches best rotation speed of fan always.
Description
Technical field
The present invention relates to gas utensil field more particularly to a kind of adjusting methods and system of gas secondary pressure, are suitable for combustion
The gas utensils such as gas water heater for heating, gas heater, fully pre-mixing gas combustion stove.
Background technology
Gas-heating water heater refers to being transferred heat to and being flowed through by way of combustion heating using combustion gas as fuel
To reach a kind of gas appliance for preparing hot water purpose in the cold water of heat exchanger.Existing gas-heating water heater parameter according to
Laboratory test data calculates to obtain gas-heating water heater maximum gas consumption magnitude and minimum gas consumption magnitude, true by testing
Determine gas proportion valve opening and corresponding current value, but gas ratio valve coil resistance and mainboard output current all have fluctuation, make
Situations such as at exporting air consumption unusual fluctuations, easily causing resonance or incomplete combustion.And in gaseous-pressure area or combustion gas high pressure
Period fluctuates greatly the use of combustion gas, in this case, if the gaseous-pressure of user family reduces, can not perceive combustion gas
Pressure is low and is adjusted, and causes that preset temperature cannot be reached when too low gaseous-pressure, it is difficult to meet user to gas-heating
The use demand of water heater.Domestic existing gas-heating water heater, majority cannot achieve the automatic detection and adjusting of gaseous-pressure,
To cause when gaseous-pressure is relatively low, gas-heating water heater can not perceive, and the still journey according to gaseous-pressure when normal
Sort run.On the one hand since gaseous-pressure is low, keep fuel gas supply insufficient, cause gas-heating water heater flame-out；On the other hand by
It is relatively on the high side in air supply amount, so that gas-heating water heater is generated from flame phenomenon, causes to discharge exceeded；In addition air supply amount
When on the high side, it can also make the reduction of gas-heating water heater efficiency of combustion, so that gas-heating water heater water-yielding capacity is declined, cause to be discharged
Temperature is low.And when the gas-heating water heater having carries out the variation of autonomous perception gaseous-pressure value, all it is often default scale
Valve electric current matches always with gas secondary pressure, this cannot allow gas-heating water heater to begin according to actual conditions in use
It is maintained at best air-fuel ratio eventually.
The gas secondary pressure of gas-heating water heater refers to the gaseous-pressure after being adjusted by proportioning valve inside machine, is to determine
Determine the important indicator of gas-heating water heater performance.When preceding manufacture or repair are completed in production of machinery, needs to press gas secondary and examine
Survey setting.The measurement method of gas secondary pressure is to increase a test mouth on proportional valve member, and hose is connected on test pressure mouth
On, then an end of hose is connected on differential manometer, knows gas secondary pressure by reading the reading on differential manometer；As needed
Adjustment then needs, by manually adjusting the potentiometer on machine internal control computer main board, to change the electric current control of input proportioning valve
Ratio valve opening processed, to adjust and reach required gas secondary pressure.Whether the prior art is inclined to preset gas secondary pressure
After the detection of shifting, when detecting gas secondary pressure offset, usual way is not dealt with, or directly comparative example valve electric current carries out
The adjusting increased or reduced.
In the implementation of the present invention, inventor has found that the prior art has the following problems：It is carried in municipal gas ductwork
When (outside) gaseous-pressure supplied deviates standard value, the gaseous-pressure of supply is unstable, is susceptible to proportioning valve electric current and combustion gas
Secondary pressure mismatches, and after detecting preset gas secondary pressure range offset, only comparative example valve electric current carries out simple
Increase or reduce, can prevent gas secondary pressure from matching best rotation speed of fan, cause the out of proportion of air and combustion gas,
And then it influences flue gas emission and reduces the flue gas emission thermal efficiency.
Invention content
In view of the above-mentioned problems, the purpose of the present invention is to provide a kind of adjusting methods of gas secondary pressure so that combustion gas two
Secondary pressure matches best rotation speed of fan always, ensures no matter complete machine runs under which kind of air pressure, can guarantee air and combustion gas
Ratio is reasonable, and then ensures flue gas emission and improve the flue gas emission thermal efficiency.
In a first aspect, the present invention provides a kind of adjusting method of gas secondary pressure, including：Detect gas secondary pressure offset
When presetting secondary pressure range, is pressed according to the gas secondary and adjust rotation speed of fan；
It repeats the steps of until leaving water temperature meets preset temperature range or proportioning valve electric current reaches preset ratio
When valve current limit value：
When detecting that leaving water temperature is unsatisfactory for preset temperature range, judge proportioning valve electric current whether in preset proportioning valve
In the range of electric current；
When in the range of the proportioning valve electric current is not in the preset ratio valve electric current, according to the leaving water temperature and institute
The difference for stating preset temperature range adjusts the proportioning valve electric current；
When detecting that current rotation speed of fan is mismatched with current gas secondary pressure, according to it is described it is current described in
Gas secondary pressure adjusts the current rotation speed of fan.
In the first possible realization method of first aspect, detect that secondary pressure is preset in gas secondary pressure offset described
When range, pressed before adjusting rotation speed of fan according to the gas secondary, including：
The default secondary pressure range is initialized.
The possible realization method of with reference to first aspect the first, in second of possible realization method of first aspect, institute
It states and the default secondary pressure range is initialized, specifically include：
Store multiple default secondary pressure ranges；
According to the corresponding default secondary pressure range of the machine models of gas utensil matching.
In the third possible realization method of first aspect, detect that secondary pressure is preset in gas secondary pressure offset described
When range, is pressed before adjusting rotation speed of fan according to the gas secondary, further include：
The anticipation of thermic load is carried out according to leaving water temperature and preset temperature value；
The preset proportioning valve electric current is set according to the anticipation result of the thermic load, wherein the preset ratio
Valve electric current has multiple, constitutes the range of the preset ratio valve electric current；
According to the preset proportioning valve electric current, corresponding rotation speed of fan is set；
It is the preset proportioning valve currents match according to gas proportion valve characteristic and gas utensil field adjustable data
The corresponding default secondary pressure range.
In the 4th kind of possible realization method of first aspect, it is described in the proportioning valve electric current not in the preset ratio
When in the range of valve electric current, the ratio is adjusted according to the difference of the numerical value within the scope of the leaving water temperature and the default temperature
Example valve electric current, specifically includes：
In the leaving water temperature than quantity difference all hours within the scope of the default temperature, increase the proportioning valve electricity
Stream；
When the leaving water temperature is all bigger than the quantity difference within the scope of the default temperature, the proportioning valve electricity is turned down
Stream.
In the 5th kind of possible realization method of first aspect, the default secondary pressure range of gas secondary pressure offset is being detected
And when deviating preset gas secondary pressure limits：
Signal an alert is simultaneously out of service.
Second aspect, the present invention provide the regulating system of the adjusting method using any of the above-described gas secondary pressure,
Including：Baroceptor, proportioning valve, temperature sensor, controller, air pressure feedback device, temperature feedback arrangement, proportional valve control
Device, wind turbine, fan controller, rotation speed of fan feedback device；
The controller is electrically connected the baroceptor by the air pressure feedback device, and the controller passes through described
Temperature feedback arrangement is electrically connected the temperature sensor, and the controller is electrically connected the ratio by the proportional valve control device
Example valve, the controller are electrically connected the wind turbine by the rotation speed of fan feedback device, and the controller passes through the wind turbine
Control device is electrically connected the wind turbine.
In the first possible realization method of second aspect, further include：Alarm device, touch screen, burner, main heat exchange
Device, radiator, water flow sensor and electronic three-way valve；
The controller respectively with the alarm device, touch screen, the burner, the main heat exchanger, described
Radiator, the water flow sensor and electronic three-way valve electrical connection；
The water flow sensor is set to water inlet or the water outlet of the radiator, the water flow sensor
It is electrically connected the electronic three-way valve.
In second of possible realization method of second aspect, the pressure tappings of the baroceptor are set to the proportioning valve
With the fuel gas path between the burner.
One technical solution of above-mentioned technical proposal has the following advantages that：By detecting gas secondary pressure offset default two
It when secondary pressure range, is pressed according to the gas secondary and adjusts rotation speed of fan, realize the height of gas secondary pressure and rotation speed of fan
Match so that gas secondary pressure matches best rotation speed of fan always；It repeats the steps of until leaving water temperature meets preset temperature
When degree range or proportioning valve electric current reach preset proportioning valve current limit value：Detect that leaving water temperature is unsatisfactory for preset temperature
When range, judge proportioning valve electric current whether in the range of preset proportioning valve electric current；In the proportioning valve electric current not described
When in the range of preset ratio valve electric current, the ratio is adjusted according to the difference of the leaving water temperature and the preset temperature range
Example valve electric current, secondary pressure is adjusted by adjusting proportioning valve current value, solve in existing way default scale valve electric current and
Air and combustion gas is out of proportion caused by gas secondary pressure matches always, and then causes burner combustion is insufficient to ask
Topic, avoid burning occur it is flame-out, from flame, yellow fire and discharge are exceeded phenomena such as.Detect current rotation speed of fan with it is current
When the gas secondary pressure mismatches, the current rotation speed of fan is adjusted according to the current gas secondary pressure, then
Secondary pressed according to the gas secondary adjusts rotation speed of fan, realizes the matched of gas secondary pressure and rotation speed of fan, so weight
It is multiple, so that gas secondary pressure is matched best rotation speed of fan always, ensure no matter complete machine runs under which kind of air pressure, can guarantee sky
The rational proportion of gas and combustion gas, and then ensure the reasonable of flue gas emission and improve the discharge thermal efficiency, and certainly, implement the present invention's
Any product does not necessarily require achieving all the advantages described above at the same time.
Description of the drawings
Fig. 1 is the structural schematic diagram of gas-heating water heater provided in an embodiment of the present invention；
Fig. 2 is a kind of regulating system structural representation of gas-heating water heater gas secondary pressure provided in an embodiment of the present invention
Figure；
Fig. 3 is the flow of the adjusting method of another gas-heating water heater gas secondary pressure provided in an embodiment of the present invention
Schematic diagram；
Fig. 4 is that a kind of flow of the adjusting method of gas-heating water heater gas secondary pressure provided in an embodiment of the present invention is shown
It is intended to；
Fig. 5 is the structural schematic diagram of gas-heating water heater provided in an embodiment of the present invention.
Wherein, 100, gas-heating water heater；1, baroceptor；2, proportioning valve；3, temperature sensor；4, controller；
5, air pressure feedback device；6, temperature feedback arrangement；7, proportional valve control device；8, wind turbine；9, fan controller；10, wind turbine
Speed feedback device；11, alarm device；12, touch screen；13, burner；14, main heat exchanger；141, exhalant canal；15, it radiates
Device；151, water inlet；152, water outlet；16, water flow sensor；17, electronic three-way valve；18, fuel gas path；19, warm
Spend sensor.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
Gas secondary pressure refers to the gaseous-pressure after being adjusted by proportioning valve inside gas utensil machine, is gas-heating hot water
One important parameter of stove.With reference to the attached drawing of specification, further retouched by the specific implementation mode work to the present invention
It states, keeps technical scheme of the present invention and advantage more explicit.It is to show to describe embodiment below with reference to attached drawing
Example property, it is intended to explain the present invention, and should not be understood as the limitation of the present invention.
Referring to Fig. 1, the structural schematic diagram of gas-heating water heater 100 provided in an embodiment of the present invention, the air pressure transmission
The pressure tappings of sensor 1 are set to the fuel gas path 18 between the proportioning valve 2 and the burner 13, and the temperature sensor 19 is set
In on the exhalant canal 141 of the main heat exchanger 14, the water flow sensor 16 is set to the water inlet of the radiator 15
Place 151 or water outlet 152, the proportioning valve 2 are set to 13 lower section of the burner and the top positioned at the radiator 15, lead to
It crosses the fuel gas path 18 to be connected to the burner 13, the wind turbine 8 is set to 14 top of the main heat exchanger, the control
1 (not shown) of device processed is the controller of the gas-heating water heater.
Referring to Fig. 2, a kind of regulating system knot of gas-heating water heater gas secondary pressure provided in an embodiment of the present invention
Structure schematic diagram, including：Baroceptor 1, proportioning valve 2, temperature sensor 3, controller 4, air pressure feedback device 5, temperature feedback
Device 6, proportional valve control device 7, wind turbine 8, fan controller 9, rotation speed of fan feedback device 10；
The controller 4 is electrically connected the baroceptor 1 by the air pressure feedback device 5, and the controller 4 passes through
The temperature feedback arrangement 6 is electrically connected the temperature sensor 3, and the controller 4 is electrically connected by the proportional valve control device 7
The proportioning valve 2 is connect, the controller 4 is electrically connected the wind turbine 8, the controller by the rotation speed of fan feedback device 10
4 are electrically connected the wind turbine 8 by the fan controller 9.
Further include：Alarm device 11, touch screen 12, burner 13, main heat exchanger 14, radiator 15, water flow sensor
16 and electronic three-way valve 17；
The controller 4 respectively with the alarm device 11, the touch screen 12, the burner 13, main heat exchanger 14,
Radiator 15, water flow sensor 16 and electronic three-way valve 17 are electrically connected；
The water flow sensor 16 is set to water inlet 151 or the water outlet 152 of the radiator 15, the water
Flow sensor 16 is electrically connected the electronic three-way valve 17.
Wherein, the water flow sensor 16 detects that the water inlet 151 of the radiator 15 or water outlet 152 have
When flow, the controller 4 switches to bathroom pattern, controls the electronic three-way valve 17 and switches water flow switch work；When described
When water flow sensor 16 detects that the water inlet 151 of the radiator 15 or water outlet 152 do not have flow, the control
Device 4 switches to heating pattern, controls the electronic three-way valve 17 and switches water flow switch work.
Wherein, the controller 4 is preferably the controller of gas-heating water heater, i.e. master control borad；It is in the controller
When microcontroller, the preferably described microcontroller is electrically connected the master control borad.The baroceptor 1, the proportioning valve 2, institute
State temperature sensor 3, the air pressure feedback device 4, the temperature feedback arrangement 5, the proportional valve control device 6, the wind
It is machine 7, the fan controller 8, the rotation speed of fan feedback device 9, the alarm device 10, the burner 11, described
Main heat exchanger 12 and the touch screen 13 are with the specific circuit that connect of the controller for routine techniques, and details are not described herein.
Wherein, the initialization value before gas secondary pressure is adjusted is carried out in the controller：1) it stores multiple described default
Secondary pressure range and the model of gas-heating water heater match the relationship of the corresponding default secondary pressure range；2) it is stored with
Thermic load, and the preset proportioning valve electric current according to the setting of the anticipation result of the thermic load, wherein described preset
Proportioning valve electric current has multiple, constitutes the range of the preset ratio valve electric current；3) the preset proportioning valve electric current is stored with to set
Set corresponding rotation speed of fan；4) it is stored with the pass of the corresponding default secondary pressure range of the preset proportioning valve currents match
System.
Wherein, the controller includes processor and memory, and executable code is stored in the memory, described
Executable code can be executed by the processor, to realize following steps：
The default secondary pressure range is initialized；
It is described that the default secondary pressure range is initialized, it specifically includes：
Store multiple default secondary pressure ranges；
According to the corresponding default secondary pressure range of the model of gas-heating water heater matching.
Specifically, being stored with multiple default secondary pressure ranges in the controller, the program in the controller is activated
When, the model of gas water-heating furnace is read, corresponding default secondary pressure range, a kind of model are transferred according to the machine models read
Gas-heating water heater correspond to accordingly preset secondary pressure range；It states controller and connects the touch screen, user can pass through
The corresponding preset secondary pressure range of the model of gas-heating water heater described in the touch screen manual setting；To preset two
When secondary pressure range is adjusted, the corresponding secondary pressure of model of this kind of gas-heating water heater is inputted by the touch panel device
Range, so that it may which, the default secondary pressure range to be adjusted, the present invention is not especially limited this.
Referring to Fig. 3, further include before the adjusting for carrying out gas secondary pressure：
S11, the anticipation that thermic load is carried out according to leaving water temperature and preset temperature value；
S12, the preset proportioning valve electric current is arranged according to the anticipation result of the thermic load, wherein described preset
Proportioning valve electric current has multiple, constitutes the range of the preset ratio valve electric current；
S13, corresponding rotation speed of fan is arranged according to the preset proportioning valve electric current；
S14, according to gas proportion valve characteristic and gas-heating water heater field adjustable data, be the preset ratio
The corresponding default secondary pressure range of example valve currents match.
After whether prior art detection gas secondary pressure deviates, the preset gas secondary of gas secondary pressure offset is being detected
Press range when, it is common practice that do not deal with, or directly comparative example valve electric current increased or reduced, gas secondary pressure with
When proportioning valve electric current mismatches, the proportioning valve electric current corresponds to a gas secondary pressure, but not to the gas secondary
Pressure is detected, such as a proportioning valve electric current a1 corresponds to a secondary pressure b1 and a corresponding rotation speed of fan c1, is detecting
When gas secondary pressure deviates preset gas secondary pressure range, proportioning valve electric current a1 is adjusted, so that rotation speed of fan is c1, because
Gas secondary is pressed to be mismatched with proportioning valve electric current, and actual gas secondary pressure is b3, rather than b1, is c1 adjusting rotation speed of fan
When can not solve the problems, such as.When the default gas secondary pressure limit that the air pressure force snesor detects does not have offset setting limit
Whether value, judgement leaving water temperature meet preset temperature range, terminate flow if leaving water temperature meets preset temperature range,
If leaving water temperature is unsatisfactory for preset temperature range, adjust the gas ratio valve electric current, judge at this time the rotation speed of fan with
Whether the gas ratio valve electric current matches, if not satisfied, adjusting the rotation speed of fan, judges whether leaving water temperature is full if meeting
The preset temperature range of foot.
Referring to Fig. 4, next highlight when detecting that secondary pressure range is preset in gas secondary pressure offset, to combustion gas two
The adjusting method of secondary pressure, including：
S21, it when detecting that secondary pressure range is preset in gas secondary pressure offset, is pressed according to the gas secondary and adjusts wind turbine turn
Speed；
It repeats the steps of until leaving water temperature meets preset temperature range or proportioning valve electric current reaches preset ratio
When valve current limit value：
S22, when detecting that leaving water temperature is unsatisfactory for preset temperature range, judge proportioning valve electric current whether in preset ratio
In the range of example valve electric current；
S23, in the range of the proportioning valve electric current is not in the preset ratio valve electric current when, according to the leaving water temperature
The proportioning valve electric current is adjusted with the difference of the preset temperature range；
S24, when detecting that current rotation speed of fan is mismatched with current gas secondary pressure, according to described current
The gas secondary pressure adjusts the current rotation speed of fan.
Preferably, it is described in the range of the proportioning valve electric current is not in the preset ratio valve electric current when, according to described
The difference of leaving water temperature and the numerical value within the scope of the default temperature adjusts the proportioning valve electric current, specifically includes：
In the leaving water temperature than quantity difference all hours within the scope of the default temperature, increase the proportioning valve electricity
Stream；
When the leaving water temperature is all bigger than the quantity difference within the scope of the default temperature, the proportioning valve electricity is turned down
Stream.
For example, preset leaving water temperature is 25 degree to 30 degree, and when the leaving water temperature is 20 degree, then the leaving water temperature
It is all smaller than the quantity difference within the scope of the default temperature, when the leaving water temperature is 35 degree, then the leaving water temperature ratio
Quantity difference within the scope of the default temperature is all big, if leaving water temperature is 25 or 30 degree, the leaving water temperature be
In preset outlet water temperature range, the present invention is not especially limited this.
Preferably, detecting that secondary pressure range is preset in gas secondary pressure offset and the preset gas secondary of offset presses the limit
When being worth range：
Signal an alert is simultaneously out of service.
Wherein, the gas secondary pressure limits are P1~P2, wherein the P1 is that the gas secondary presses the limit
It is worth the minimum value of range, the P2 is the maximum value that the gas secondary presses limits；The gas secondary force down in
When preset P1 values, then the gas secondary presses through low, needs to carry out alarm sounds；It is default being higher than in gas secondary pressure
P2 values when, then the gas secondary presses through height, needs to carry out alarm sounds, signal an alert can guarantee in time to existing
Danger is investigated, and is stopped the operation of gas-heating water heater, is stopped, and ensures the safety of user.
Preferably, by the gas secondary pressure, it is described preset secondary pressure range, the rotation speed of fan, the leaving water temperature,
The range of the preset temperature range, the proportioning valve electric current and the preset proportioning valve electric current carries out real-time display.
The course of work is as follows：The controller reads the feedback signal of the pressure sensor in real time, is detecting combustion gas
When secondary pressure offset presets secondary pressure range and deviates preset gas secondary pressure limits, police is sent out by alarm device
The number of notifying is simultaneously out of service；In the gas secondary pressure value for detecting the feedback of the pressure sensor not in preset gas secondary
When in the preset range of pressure, rotation speed of fan is adjusted according to the gas secondary pressure value of the feedback, controls the temperature sensor inspection
Measure coolant-temperature gage, wherein the leaving water temperature be main heat exchanger leaving water temperature, if the leaving water temperature meet it is preset
When temperature range, then terminate process, leaving water temperature is met the requirements, and is no longer adjusted；If detecting that the leaving water temperature is discontented
When the preset temperature range of foot, then the controller reads the current value of proportioning valve by the proportional valve control device, judges
Whether the proportioning valve electric current is in the range of preset proportioning valve electric current, if the proportioning valve electric current is in preset proportioning valve
When in electric current, then terminate process, because being to carry out the preset proportioning valve electricity according to leaving water temperature and preset leaving water temperature
The setting for flowing range, adjust again at this time proportioning valve current value to the regulating effect of leaving water temperature be it is bad, end adjust into
Journey carries out alarm sounds；If the proportioning valve electric current is not in the range of the preset ratio valve electric current, according to it is described go out
Coolant-temperature gage and the difference of the preset temperature range adjust the proportioning valve electric current, specifically, comparing institute in the leaving water temperature
Quantity difference all hours within the scope of default temperature are stated, the proportioning valve electric current is increased；It is more pre- than described in the leaving water temperature
When if quantity difference within the temperature range of is all big, the proportioning valve electric current is turned down；The controller passes through the rotation speed of fan
Feedback device obtains the rotation speed of fan, detects whether current rotation speed of fan matches with the current gas secondary pressure,
When current rotation speed of fan is matched with current gas secondary pressure, continues to be detected the leaving water temperature, judge
Coolant-temperature gage and preset outlet water temperature range, when current rotation speed of fan is pressed with the current gas secondary and is mismatched, root
The current rotation speed of fan is adjusted according to the current gas secondary pressure, continues to be detected the leaving water temperature,
Judge leaving water temperature and preset outlet water temperature range, repeat, until leaving water temperature meets preset temperature range or ratio
Example valve electric current reaches preset proportioning valve current limit value.In the process, by touch screen to the gas secondary pressure, described
Preset secondary pressure range, the rotation speed of fan, the leaving water temperature, the preset temperature range, the proportioning valve electric current and
The range of the preset proportioning valve electric current carries out real-time display, convenient for user to the course of work of the gas-heating water heater
The grasp of middle data, presence of pinpointing the problems in time.
One technical solution of above-mentioned technical proposal has the following advantages that：By detecting gas secondary pressure offset default two
It when secondary pressure range, is pressed according to the gas secondary and adjusts rotation speed of fan, realize the height of gas secondary pressure and rotation speed of fan
Match so that gas secondary pressure matches best rotation speed of fan always；It repeats the steps of until leaving water temperature meets preset temperature
When degree range or proportioning valve electric current reach preset proportioning valve current limit value：Detect that leaving water temperature is unsatisfactory for preset temperature
When range, judge proportioning valve electric current whether in the range of preset proportioning valve electric current；In the proportioning valve electric current not described
When in the range of preset ratio valve electric current, the ratio is adjusted according to the difference of the leaving water temperature and the preset temperature range
Example valve electric current, adjusts gas secondary pressure by adjusting proportioning valve current value, solves default scale valve electricity in existing way
Air and combustion gas is out of proportion caused by stream matches always with gas secondary pressure, and then causes burner combustion insufficient
Problem, avoid burning occur it is flame-out, from flame, yellow fire and discharge are exceeded phenomena such as.Detect current rotation speed of fan with it is current
Gas secondary pressure when mismatching, the current rotation speed of fan is adjusted according to the current gas secondary pressure,
It is pressed again according to the gas secondary and adjusts rotation speed of fan, realize the matched of gas secondary pressure and rotation speed of fan, so
It repeats, gas secondary pressure is made to match best rotation speed of fan always, ensure no matter complete machine runs under which kind of air pressure, can guarantee
The rational proportion of air and combustion gas, and then ensure the reasonable of flue gas emission and improve the discharge thermal efficiency, and certainly, implement the present invention
Any product do not necessarily require achieving all the advantages described above at the same time.
Fig. 5 is referred to, Fig. 5 is the schematic diagram of gas-heating water heater provided in an embodiment of the present invention, for executing this hair
The method for the pressing test that bright embodiment provides, as shown in figure 5, the gas-heating water heater includes：At least one processor 11,
Such as CPU, at least one network interface 14 or other users interface 13, memory 15, at least one communication bus 12, communication
Bus 12 is for realizing the connection communication between these components.Wherein, user interface 13 may include optionally USB interface and
Other standards interface, wireline interface.Network interface 14 may include optionally Wi-Fi interface and other wireless interfaces.Storage
Device 15 may include high-speed RAM memory, it is also possible to further include non-labile memory (non-volatilememory), example
Such as at least one magnetic disk storage.Memory 15 can include optionally at least one storage for being located remotely from aforementioned processor 11
Device.
In some embodiments, memory 15 stores following element, executable modules or data structures, or
Their subset or their superset:
Operating system 151, including various system programs, for realizing various basic businesses and hardware based of processing
Business；
Program 152.
Specifically, processor 11 executes pressing described in above-described embodiment for calling the program 152 stored in memory 15
Press test method.
Alleged processor can be central processing unit (Central Processing Unit, CPU), can also be it
His general processor, digital signal processor (Digital Signal Processor, DSP), application-specific integrated circuit
(Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-
Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic,
Discrete hardware components etc..General processor can be microprocessor or the processor can also be any conventional processor
Deng the processor is the control centre of the adjusting method of the secondary pressure of the gas-heating water heater, utilizes various interfaces and line
The various pieces of the adjusting method of the entire gas-heating water heater gas secondary pressure of road connection.
The memory can be used for storing the computer program and/or module, and the processor is by running or executing
Computer program in the memory and/or module are stored, and calls the data being stored in memory, described in realization
Press the various functions of the electronic device of test.The memory can include mainly storing program area and storage data field, wherein
Storing program area can storage program area, application program (such as sound-playing function, text conversion needed at least one function
Function etc.) etc.；Storage data field can be stored uses created data (such as audio data, word message number according to mobile phone
According to etc.) etc..In addition, memory may include high-speed random access memory, can also include nonvolatile memory, such as firmly
Disk, memory, plug-in type hard disk, intelligent memory card (Smart Media Card, SMC), secure digital (Secure Digital,
SD) block, flash card (Flash Card), at least one disk memory, flush memory device or other volatile solid-states
Part.
Wherein, if the integrated module of the adjusting method of the gas-heating water heater gas secondary pressure is with software function list
The form of member is realized and when sold or used as an independent product, can be stored in a computer read/write memory medium
In.Based on this understanding, the present invention realizes all or part of flow in above-described embodiment method, can also pass through computer
Program is completed to instruct relevant hardware, and the computer program can be stored in a computer readable storage medium,
The computer program is when being executed by processor, it can be achieved that the step of above-mentioned each embodiment of the method.Wherein, the computer journey
Sequence includes computer program code, and the computer program code can be source code form, object identification code form, executable text
Part or certain intermediate forms etc..The computer-readable medium may include：Appointing for the computer program code can be carried
What entity or device, recording medium, USB flash disk, mobile hard disk, magnetic disc, CD, computer storage, read-only memory (ROM,
Read-Only Memory), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunications letter
Number and software distribution medium etc..It should be noted that the content that the computer-readable medium includes can be managed according to the administration of justice
Local legislation and the requirement of patent practice carry out increase and decrease appropriate, such as in certain jurisdictions, according to legislation and patent
Practice, computer-readable medium do not include electric carrier signal and telecommunication signal.
It should be noted that the apparatus embodiments described above are merely exemplary, wherein described be used as separating component
The unit of explanation may or may not be physically separated, and the component shown as unit can be or can also
It is not physical unit, you can be located at a place, or may be distributed over multiple network units.It can be according to actual
It needs that some or all of module therein is selected to achieve the purpose of the solution of this embodiment.In addition, device provided by the invention
In embodiment attached drawing, the connection relation between module indicates there is communication connection between them, specifically can be implemented as one or
A plurality of communication bus or signal wire.Those of ordinary skill in the art are without creative efforts, you can to understand
And implement.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
It should be noted that in the above-described embodiments, all emphasizing particularly on different fields to the description of each embodiment, in some embodiment
In the part that is not described in, may refer to the associated description of other embodiment.Secondly, those skilled in the art should also know
It knows, embodiment described in this description belongs to preferred embodiment, and involved action and simulation must be that the present invention must
Must.
Claims (10)
1. a kind of adjusting method of gas secondary pressure, which is characterized in that including：
When detecting that secondary pressure range is preset in gas secondary pressure offset, is pressed according to the gas secondary and adjust rotation speed of fan；
It repeats the steps of until leaving water temperature meets preset temperature range or proportioning valve electric current reaches preset proportioning valve electricity
When flowing limiting value：
When detecting that leaving water temperature is unsatisfactory for preset temperature range, judge proportioning valve electric current whether in preset proportioning valve electric current
In the range of；
When in the range of the proportioning valve electric current is not in the preset ratio valve electric current, according to the leaving water temperature with it is described pre-
If the difference of temperature range adjust the proportioning valve electric current；
When detecting that current rotation speed of fan is mismatched with current gas secondary pressure, according to the current combustion gas
Secondary pressure adjusts the current rotation speed of fan.
2. the adjusting method of gas secondary pressure according to claim 1, which is characterized in that detect gas secondary described
When secondary pressure range is preset in pressure offset, pressed before adjusting rotation speed of fan according to the gas secondary, including：
The default secondary pressure range is initialized.
3. the adjusting method of gas secondary pressure according to claim 2, which is characterized in that described to preset secondary pressure to described
Range is initialized, and is specifically included：
Store multiple default secondary pressure ranges；
According to the corresponding default secondary pressure range of the machine models of gas utensil matching.
4. the adjusting method of gas secondary pressure as described in claim 1, which is characterized in that detect gas secondary pressure described
When secondary pressure range is preset in offset, is pressed before adjusting rotation speed of fan according to the gas secondary, further include：
The anticipation of thermic load is carried out according to leaving water temperature and preset temperature value；
The preset proportioning valve electric current is set according to the anticipation result of the thermic load, wherein the preset proportioning valve electricity
Stream has multiple, constitutes the range of the preset ratio valve electric current；
According to the preset proportioning valve electric current, corresponding rotation speed of fan is set；
According to gas proportion valve characteristic and gas utensil field adjustable data, corresponded to for the preset proportioning valve currents match
It is described preset secondary pressure range.
5. the adjusting method of gas secondary pressure according to claim 1, which is characterized in that described in the proportioning valve electric current
When not in the range of the preset ratio valve electric current, according to the numerical value within the scope of the leaving water temperature and the default temperature
Difference adjust the proportioning valve electric current, specifically include：
In the leaving water temperature than quantity difference all hours within the scope of the default temperature, increase the proportioning valve electric current；
When the leaving water temperature is all bigger than the quantity difference within the scope of the default temperature, the proportioning valve electric current is turned down.
6. the adjusting method of gas secondary pressure as described in claim 1, which is characterized in that detecting gas secondary pressure offset
When presetting secondary pressure range and deviating preset gas secondary pressure limits：
Signal an alert is simultaneously out of service.
7. the adjusting method of gas secondary pressure according to claim 1, which is characterized in that
By the gas secondary pressure, the secondary pressure range, rotation speed of fan, the leaving water temperature, described preset preset
The range of temperature range, the proportioning valve electric current and the preset proportioning valve electric current carries out real-time display.
8. a kind of regulating system of adjusting method using any gas secondary pressures of claim 1-7, which is characterized in that
Including：Baroceptor (1), proportioning valve (2), temperature sensor (3), controller (4), air pressure feedback device (5), temperature feedback
Device (6), proportional valve control device (7), wind turbine (8), fan controller (9), rotation speed of fan feedback device (10)；
The controller (4) is electrically connected the baroceptor (1), the controller (4) by the air pressure feedback device (5)
It is electrically connected the temperature sensor (3) by the temperature feedback arrangement (6), the controller (4) passes through the Proportional Valve-controlled
Device (7) processed is electrically connected the proportioning valve (2), and the controller (4) is electrically connected by the rotation speed of fan feedback device (10)
The wind turbine (8), the controller (4) are electrically connected the wind turbine (8) by the fan controller (9).
9. the regulating system of gas secondary pressure according to claim 8, which is characterized in that further include：Alarm device (11),
Touch screen (12), burner (13), main heat exchanger (14), radiator (15), water flow sensor (16) and electronic three-way valve
(17)；
The controller (4) respectively with the alarm device (11), the touch screen (12), the burner (13), the master
Heat exchanger (14), the radiator (15), the water flow sensor (16) and the electronic three-way valve (17) electrical connection；
The water flow sensor (16) is set at the water inlet (151) or water outlet (152) of the radiator (15), institute
It states water flow sensor (16) and is electrically connected the electronic three-way valve (17).
10. the regulating system of gas secondary pressure according to claim 9, which is characterized in that the baroceptor (1)
Pressure tappings are set to the fuel gas path (18) between the proportioning valve (2) and the burner (13).
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|---|---|---|---|
| CN201810158540.0A CN108469120B (en) | 2018-02-24 | 2018-02-24 | Method and system for adjusting secondary pressure of fuel gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810158540.0A CN108469120B (en) | 2018-02-24 | 2018-02-24 | Method and system for adjusting secondary pressure of fuel gas |
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| CN108469120B CN108469120B (en) | 2024-03-19 |
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| CN109631344A (en) * | 2018-11-14 | 2019-04-16 | 广东万和新电气股份有限公司 | More gas source self-adapting regulation methods, control system and the gas heater with it |
| CN109915851A (en) * | 2019-01-23 | 2019-06-21 | 广东万和热能科技有限公司 | Low pressure method for controlling combustion, device, storage medium and the gas utensil of gas utensil |
| CN110081607A (en) * | 2019-03-28 | 2019-08-02 | 青岛经济技术开发区海尔热水器有限公司 | A kind of gas heater control method, control system and gas heater |
| CN110207392A (en) * | 2018-10-30 | 2019-09-06 | 华帝股份有限公司 | Method for correcting current function relationship between fan and proportional valve |
| CN110907090A (en) * | 2019-11-12 | 2020-03-24 | 华帝股份有限公司 | Automatic secondary pressure calibration method and device for gas water heater |
| CN110926032A (en) * | 2019-11-01 | 2020-03-27 | 华帝股份有限公司 | Fan air volume adjusting method for gas water heater and gas water heater |
| CN111141031A (en) * | 2018-11-05 | 2020-05-12 | 宁波方太厨具有限公司 | Automatic fault detection method for gas water heater |
| CN111486597A (en) * | 2019-01-28 | 2020-08-04 | 宁波方太厨具有限公司 | Control method for abnormal rotating speed of fan of gas water heater |
| CN111609562A (en) * | 2020-05-19 | 2020-09-01 | 青岛经济技术开发区海尔热水器有限公司 | Secondary pressure adjusting system and method for gas water heater and gas water heater |
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| CN110207392A (en) * | 2018-10-30 | 2019-09-06 | 华帝股份有限公司 | Method for correcting current function relationship between fan and proportional valve |
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| CN110081607A (en) * | 2019-03-28 | 2019-08-02 | 青岛经济技术开发区海尔热水器有限公司 | A kind of gas heater control method, control system and gas heater |
| CN110081607B (en) * | 2019-03-28 | 2021-01-19 | 青岛经济技术开发区海尔热水器有限公司 | Control method and control system of gas water heater and gas water heater |
| CN110926032A (en) * | 2019-11-01 | 2020-03-27 | 华帝股份有限公司 | Fan air volume adjusting method for gas water heater and gas water heater |
| CN110926032B (en) * | 2019-11-01 | 2021-05-18 | 华帝股份有限公司 | Fan air volume adjusting method for gas water heater and gas water heater |
| CN110907090A (en) * | 2019-11-12 | 2020-03-24 | 华帝股份有限公司 | Automatic secondary pressure calibration method and device for gas water heater |
| CN111609562A (en) * | 2020-05-19 | 2020-09-01 | 青岛经济技术开发区海尔热水器有限公司 | Secondary pressure adjusting system and method for gas water heater and gas water heater |
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