CN105509330A - Method for regulating combustion power of gas water heater - Google Patents
Method for regulating combustion power of gas water heater Download PDFInfo
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- CN105509330A CN105509330A CN201610000433.6A CN201610000433A CN105509330A CN 105509330 A CN105509330 A CN 105509330A CN 201610000433 A CN201610000433 A CN 201610000433A CN 105509330 A CN105509330 A CN 105509330A
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- cold water
- flow
- hot water
- water
- outlet
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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
Abstract
The invention discloses a method for regulating combustion power of a gas water heater. The gas water heater comprises two hot water outlets and a cold water inlet. The combustion power is controlled by a ratio of outlet hot water flow of a second hot water outlet to inlet cold water flow of the cold water inlet according to a regulation sensitivity; when the ratio of the outlet hot water flow of the second hot water outlet to the inlet cold water flow of the cold water inlet is increased, the combustion power is controlled to be reduced; conversely, the combustion power is controlled to be increased; a size of the regulation sensitivity is controlled by an inlet cold water temperature of the cold water inlet; when the inlet cold water temperature of the cold water inlet is reduced, the regulation sensitivity is controlled to be increased; conversely, the regulation sensitivity is controlled to be reduced. The method does not require a wired or wireless remote controller, can achieve remote regulation on the combustion power of the gas water heater, and is stable and reliable in regulation result.
Description
Technical field
The present invention relates to a kind of gas heater control technology, especially a kind of gas heater combustion power control method.
Background technology
If the setting of gas heater temperature is improper, bring very big inconvenience to people, particularly when shower, the gas and hot water actuator temperature not with wireless remote control or remote line traffic control cannot regulate, and adds cold water easily cause again gas heater to stop working with mixed water valve.Adopt wireless remote control regulating gas water heater temperature, by the restriction of installation site, a lot of occasion remote controller signal cannot be sent to gas heater.When adopting remote line traffic control mode, special waterproof wire remote control devices cost is high, needs to sunken cord in advance, works for a long time under the wet environments such as bathroom, and the wire remote control devices fault rate of electronic type is high.
Summary of the invention
The combustion power that the object of the invention is for far distance controlled gas heater provides a solution, namely can the method for combustion power of far distance controlled gas heater.
To achieve these goals, the invention provides a kind of gas heater combustion power control method, comprising:
Described gas heater includes controller, reaction current quantity sensor, total flow sensor, cold water temperature sensor, gas flow control driver module, the first hot water outlet, the second hot water outlet, cold water water inlet.
Before described reaction current quantity sensor is arranged on the second hot water outlet, for detecting outlet hot water's flow of the second hot water outlet; After described total flow sensor is arranged on cold water water inlet, for detecting the entrance cold water flow of cold water water inlet; After described cold water temperature sensor is arranged on cold water inlet, for detecting the entrance cold water temperature of cold water inlet.
Described reaction current quantity sensor is electrically connected with between controller, for outlet hot water's flow signal of the second hot water outlet is passed to controller; Described total flow sensor is electrically connected with between controller, for by the entrance cold water flow signal transmission of cold water water inlet to controller; Described cold water temperature sensor is electrically connected with between controller, for by the entrance cold water temperature signal transmission of cold water inlet to controller; Described gas flow controls driver module and is electrically connected with between controller, is controlled the aperture of driver module control break burnt gas valve for controller by gas flow.
Described combustion power control method is: by the ratio between outlet hot water's flow of the second hot water outlet and the entrance cold water flow of cold water water inlet according to regulating sensitivity control combustion power; When ratio between outlet hot water's flow and the entrance cold water flow of cold water water inlet of the second hot water outlet increases, control combustion power reduction; Otherwise control combustion power increases; The size of sensitivity is controlled to adjust by the entrance cold water temperature of cold water inlet; When the entrance cold water temperature of cold water inlet reduces, control and regulation sensitivity increases; Otherwise control and regulation sensitivity reduces.Described combustion power is controlled by the aperture of burnt gas valve.
Ratio between outlet hot water's flow of described second hot water outlet and the entrance cold water flow of cold water water inlet regulates change by mixing water valve; 2 water inlets of described mixed water valve are connected to the first hot water outlet, second hot water outlet of gas heater respectively by water pipe.
Ratio between outlet hot water's flow of described second hot water outlet and the entrance cold water flow of cold water water inlet or jointly regulate change by the first control valve, the second control valve; The water inlet of described first control valve is connected to the first hot water outlet of gas heater through water pipe, the water inlet of the second control valve is connected to the second hot water outlet of gas heater through water pipe; It is a water side that the delivery port of described first control valve, the second control valve is communicated with.
Described adjustment sensitivity is according to formula
Calculate, wherein,
kregulate sensitivity;
t0 is standard of compensation temperature value, and interval is 30 ~ 40, and representative value is 35;
k0 is reference sensitivity coefficient, and interval is 0.4 ~ 1, and representative value is 0.5;
k1 is sensitivity adjustment coefficient, and interval is 0 ~ 0.03, and representative value is 0.015.
The aperture of described burnt gas valve is controlled by the aperture controlling value of burnt gas valve; The aperture controlling value of described burnt gas valve is according to formula
Calculate, wherein,
pfor the aperture controlling value of burnt gas valve;
q2 is outlet hot water's flows of the second hot water outlet,
q0 is the entrance cold water flow of cold water water inlet;
pminfor the minimum aperture controlling value of burnt gas valve, interval is 0 ~ 0.5.
The step of described combustion power control method is:
Step S1, initializes;
Step S2, samples to outlet hot water's flow of the second hot water outlet and the entrance cold water flow of cold water water inlet; The entrance cold water temperature of cold water inlet is sampled;
Step S3, calculates and regulates sensitivity;
Step S4, calculates the aperture controlling value of burnt gas valve;
Step S5, changes the aperture of burnt gas valve, controls the combustion power of gas heater according to the aperture controlling value of burnt gas valve;
Step S6, other process and wait; Sampling instant next time then, forwards step S2 to.
Described gas heater also comprises heat exchanger and water pipe, and power module, air-blower control driver module, IGNITION CONTROL and flame detection modules.
The invention has the beneficial effects as follows, without the need to wired or Digiplex, adopt and control two-way hot water flow by water valve, combine the method changing adjustment sensitivity according to entrance cold water temperature, realize the remote adjustment of gas heater combustion power, regulate result reliable and stable.
Accompanying drawing explanation
Fig. 1 is system embodiment 1 structured flowchart of gas heater combustion power control method.
Fig. 2 is system embodiment 2 structured flowchart of gas heater combustion power control method.
Fig. 3 is detection control schematic block circuit diagram.
Fig. 4 is the flow chart that controller calculates regulating gas water heater combustion power.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
System embodiment 1 structured flowchart of gas heater combustion power control method as shown in Figure 1, is made up of heat exchanger 101, total flow sensor 201, reaction current quantity sensor 202, first hot water outlet 203, second hot water outlet 204, cold water water inlet 205, cold water temperature sensor 206, mixed water valve 301 and cold water pipe 401, main hot-water line 402, first hot-water line 403, second hot-water line 404, first connecting water pipe 405, second connecting water pipe 406, heat of mixing water pipe 407, Water outlet spray head 302.
Described gas heater has 1 cold water water inlet and 2 hot water outlets, and cold water pipe 401 is connected between cold water water inlet 205 and heat exchanger 101; One end of first hot-water line 403 is connected to the first hot water outlet 203, and one end is communicated to main hot-water line 402 water side in addition; One end of second hot-water line 404 is connected to the second hot water outlet 204, and one end is communicated to main hot-water line 402 water side in addition; The water intake end of main hot-water line 402 is connected to heat exchanger 101.
Before described reaction current quantity sensor 202 is arranged on the second hot water outlet 204, for detecting outlet hot water's flow of the second hot water outlet; After described total flow sensor 201 is arranged on cold water water inlet 205, for detecting the entrance cold water flow of cold water water inlet 205; After described cold water temperature sensor 206 is arranged on cold water inlet 205.Specifically, reaction current quantity sensor 202 is arranged on the second hot-water line 404, and total flow sensor 201 is arranged on cold water pipe 401, and cold water temperature sensor 206 is arranged on cold water pipe 401.Because outlet hot water's flow of heat exchanger 101 is consistent with entrance cold water flow, therefore, total flow sensor 201 also can be arranged on main hot-water line 402.
2 water inlets of mixed water valve 301 are connected to the first hot water outlet 203, second hot water outlet 204 of gas heater respectively by the first connecting water pipe 405, second connecting water pipe 406; The delivery port of mixed water valve 301 is connected to Water outlet spray head 302 by heat of mixing water pipe 407.When mixed water valve 301 is cold water, hot water mixes water valve, the first connecting water pipe 405 is connected to the water inlet of hot water of mixed water valve 301, and the second connecting water pipe 406 is connected to the cold water water inlet of mixed water valve 301.
System embodiment 2 structured flowchart of gas heater combustion power control method as shown in Figure 2, is with the difference of embodiment 1, uses the first control valve 303, second control valve 304 to replace mixed water valve 301; The water inlet of the first control valve 303 is connected to the first hot water outlet 203, second control valve 304 of gas heater water inlet through the first connecting water pipe 405 is connected to the second hot water outlet 204 of gas heater through the second connecting water pipe 406.It is that a water side is connected with heat of mixing water pipe 407 that the delivery port of the first control valve 303, second control valve 304 is communicated with.
Described gas heater also includes controller 210, gas flow controls driver module 211, and gas heater detection control schematic block circuit diagram as shown in Figure 3.Total flow sensor 201 is provided with total flow signal output part OUT, and for detecting the entrance cold water flow of cold water water inlet 205, total flow signal is the signal of telecommunication, and signal type is pulse frequency, or voltage, or is electric current.Reaction current quantity sensor 202 is provided with the second flow signal output part OUT2, and for detecting outlet hot water's flow of the second hot water outlet 204, the second flow signal is the signal of telecommunication, and signal type is pulse frequency, or voltage, or is electric current.Cold water temperature sensor 206 is provided with cold water temperature signal output part OUT3, and for detecting the entrance cold water temperature of cold water inlet 205, cold water temperature signal is the signal of telecommunication, and signal type is data signal, or voltage, or is electric current.
Gas flow controls driver module 211 and is provided with gas valve driving signal input IN4, and for the aperture of drived control burnt gas valve, gas valve drive singal is the signal of telecommunication, and signal type is pwm pulse, or voltage, or is electric current.
Controller 210 is provided with total flow signal input part IN, the second flow signal input part IN2, cold water temperature signal input part IN3, gas valve drive singal output OUT4; Total flow signal input part IN, the second flow signal input part IN2 are connected to total flow signal output part OUT, the second flow signal output part OUT12 respectively.Cold water temperature signal input part IN3 is connected to cold water temperature signal output part OUT3, and gas valve drive singal output OUT4 is connected to gas valve driving signal input IN4.
The principle of described gas heater adjustment combustion power is:
Regulating mixed water valve 301, or regulating the first control valve 303, second control valve 304 to change outlet hot water's flow of the first hot water outlet 203, second hot water outlet 204, the entrance cold water flow of cold water water inlet 205 is outlet hot water's flow sum of the first hot water outlet 203 and the second hot water outlet 204.By the ratio between outlet hot water's flow of the second hot water outlet 204 and the entrance cold water flow of cold water water inlet 205 according to regulating sensitivity to control the aperture of burnt gas valve; When ratio between outlet hot water's flow and the entrance cold water flow of cold water water inlet 205 of the second hot water outlet 204 increases, the aperture controlling burnt gas valve reduces, and combustion power reduces, otherwise combustion power increases.The size of sensitivity is controlled to adjust by the entrance cold water temperature of cold water inlet 205; When the entrance cold water temperature of cold water inlet 205 reduces, control and regulation sensitivity increases; Otherwise control and regulation sensitivity reduces.
If outlet hot water's flow of the second hot water outlet 204 is
q2, the entrance cold water flow of cold water water inlet 205 is
q0, the entrance cold water temperature of cold water inlet 205 is
t1, then regulate sensitivity
kaccording to formula
Calculate, wherein,
t0 is standard of compensation temperature value, and interval is 30 ~ 40, and representative value is 35;
k0 is reference sensitivity coefficient, and interval is 0.4 ~ 1, and representative value is 0.5;
k1 is sensitivity adjustment coefficient, and interval is 0 ~ 0.03, and representative value is 0.015.
The aperture controlling value of burnt gas valve
paccording to formula
Calculate, wherein,
pminfor the minimum aperture controlling value of burnt gas valve, interval is 0 ~ 0.5.
Described entrance cold water temperature
t1, standard of compensation temperature value
tthe unit of 0 is DEG C, described flow
q0,
qthe unit of 2 is L/min.
Described controller 210 is made up of microcontroller and peripheral circuit.The preferred single-chip microcomputer of microcontroller, or select other devices such as ARM, DSP.When the signal type of the second flow signal, total flow signal is pulse frequency, the second flow signal input part IN2, total flow signal input part IN are the counting input end of microcontroller counter.
When the cold water temperature signal that cold water temperature sensor 206 exports is data signal, cold water temperature signal input part IN3 is the corresponding interface that microcontroller mates with cold water temperature sensor 206 output interface.
When some or all of in total flow signal, the second flow signal, cold water temperature signal is analog signal, be voltage, or during electric current, in total flow signal input part IN, the second flow signal input part IN2, cold water temperature signal input part IN3, corresponding port is the input end of analog signal of A/D converter.Described A/D converter is by microprocessor control and read data by microcontroller, and preferably, described A/D converter is included in microcontroller.
Described gas flow controls driver module 211 and is made up of gas ratio valve and associated driver circuitry, the preferred pwm pulse of gas valve drive singal.When gas flow control driver module 211 controls the aperture of burnt gas valve by pwm pulse, the dutycycle of pwm pulse is the aperture controlling value of burnt gas valve
p;
pwhen=1, the dutycycle of pwm pulse is 100%;
pwhen=0.5, the dutycycle of pwm pulse is 50%.The effect one of aforementioned Pmin is the controlling dead error avoiding gas ratio valve; Two is the minimum discharges maintaining combustion gas, avoids gas heater to stop working.
Described gas heater also comprises air-blower control driver module, IGNITION CONTROL and flame detection modules etc.Further, described gas heater also optionally comprises part of module in hot water temperature's detection module, temperature value display module, blast detection module, buzzer module or whole modules.
Described gas heater also includes power module, for controlling driver module 211 and other module for power supply to controller 210, total flow sensor 201, reaction current quantity sensor 202, gas flow.
Controller 210 calculates the flow process of regulating gas water heater combustion power as shown in Figure 4, the steps include:
Step S1, initializes;
Step S2, to outlet hot water's flow of the second hot water outlet 204
q2, the entrance cold water flow of cold water water inlet 205
q0 samples; To the entrance cold water temperature of cold water inlet 205
t1 samples;
Step S3, calculates and regulates sensitivity
k;
Step S4, calculates the aperture controlling value of burnt gas valve
p;
Step S5, according to
pchange the aperture of burnt gas valve, control the combustion power of gas heater;
Step S6, other process and wait; Sampling instant next time then, forwards step S2 to.
Controller 210, except controlling the combustion power of gas heater, also will carry out other and control.Other process described and wait, comprise air-blower control driving, IGNITION CONTROL etc. that controller 210 needs complete, and wait for.
Described sampling instant next time control then, controller 210 adopts software delay, or timer timing realizes.
The water flow sensor of the preferred same type of described reaction current quantity sensor 202, total flow sensor 201, same range ability.Further, described reaction current quantity sensor 202, total flow sensor 201 preferably adopt low cost, output signal type is the Hall water flow sensor of pulse frequency.
The integrated sensor of described cold water temperature sensor 206 preferably with data signal output interface.
The foregoing is only embodiments of the invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within right of the present invention.
Claims (10)
1. a gas heater combustion power control method, is characterized in that:
Described gas heater includes controller, reaction current quantity sensor, total flow sensor, cold water temperature sensor, gas flow control driver module, the first hot water outlet, the second hot water outlet, cold water water inlet;
Before described reaction current quantity sensor is arranged on the second hot water outlet, for detecting outlet hot water's flow of the second hot water outlet; After described total flow sensor is arranged on cold water water inlet, for detecting the entrance cold water flow of cold water water inlet; After described cold water temperature sensor is arranged on cold water inlet, for detecting the entrance cold water temperature of cold water inlet;
Described reaction current quantity sensor is electrically connected with between controller, for outlet hot water's flow signal of the second hot water outlet is passed to controller; Described total flow sensor is electrically connected with between controller, for by the entrance cold water flow signal transmission of cold water water inlet to controller; Described cold water temperature sensor is electrically connected with between controller, for by the entrance cold water temperature signal transmission of cold water inlet to controller; Described gas flow controls driver module and is electrically connected with between controller, is controlled the aperture of driver module control break burnt gas valve for controller by gas flow;
Described combustion power control method is, by the ratio between outlet hot water's flow of the second hot water outlet and the entrance cold water flow of cold water water inlet according to regulating sensitivity control combustion power; When ratio between outlet hot water's flow and the entrance cold water flow of cold water water inlet of the second hot water outlet increases, control combustion power reduction; Otherwise control combustion power increases; The size of sensitivity is controlled to adjust by the entrance cold water temperature of cold water inlet; When the entrance cold water temperature of cold water inlet reduces, control and regulation sensitivity increases; Otherwise control and regulation sensitivity reduces;
Described combustion power is controlled by the aperture of burnt gas valve.
2. gas heater combustion power control method as claimed in claim 1, is characterized in that: the ratio between outlet hot water's flow of described second hot water outlet and the entrance cold water flow of cold water water inlet regulates change by mixing water valve; 2 water inlets of described mixed water valve are connected to the first hot water outlet, second hot water outlet of gas heater respectively by water pipe.
3. gas heater combustion power control method as claimed in claim 1, is characterized in that: the ratio between outlet hot water's flow of described second hot water outlet and the entrance cold water flow of cold water water inlet regulates change jointly by the first control valve, the second control valve; The water inlet of described first control valve is connected to the first hot water outlet of gas heater through water pipe, the water inlet of the second control valve is connected to the second hot water outlet of gas heater through water pipe; It is a water side that the delivery port of described first control valve, the second control valve is communicated with.
4. gas heater combustion power control method as claimed in claim 1, is characterized in that: described adjustment sensitivity is according to formula
Calculate, wherein,
kregulate sensitivity;
t0 is standard of compensation temperature value, and interval is 30 ~ 40, and representative value is 35;
k0 is reference sensitivity coefficient, and interval is 0.4 ~ 1, and representative value is 0.5;
k1 is sensitivity adjustment coefficient, and interval is 0 ~ 0.03, and representative value is 0.015.
5. gas heater combustion power control method as claimed in claim 4, is characterized in that: the aperture of described burnt gas valve is controlled by the aperture controlling value of burnt gas valve; The aperture controlling value of described burnt gas valve is according to formula
Calculate, wherein,
pfor the aperture controlling value of burnt gas valve;
q2 is outlet hot water's flows of the second hot water outlet,
q0 is the entrance cold water flow of cold water water inlet;
pminfor the minimum aperture controlling value of burnt gas valve, interval is 0 ~ 0.5.
6. gas heater combustion power control method as claimed in claim 5, is characterized in that: the step of described controller accounting temperature setting value is:
Step S1, initializes;
Step S2, samples to outlet hot water's flow of the second hot water outlet and the entrance cold water flow of cold water water inlet; The entrance cold water temperature of cold water inlet is sampled;
Step S3, calculates and regulates sensitivity;
Step S4, calculates the aperture controlling value of burnt gas valve;
Step S5, changes the aperture of burnt gas valve, controls the combustion power of gas heater according to the aperture controlling value of burnt gas valve;
Step S6, other process and wait; Sampling instant next time then, forwards step S2 to.
7. gas heater combustion power control method as claimed in claim 6, is characterized in that: other process described and waiting for, be controller except calculating the desired temperature of gas heater, other of the gas heater that also will carry out control, and wait for.
8. gas heater combustion power control method as claimed in claim 1, is characterized in that: described reaction current quantity sensor, total flow sensor are the water flow sensor of same type, same range ability.
9. gas heater combustion power control method as claimed in claim 1, is characterized in that: described gas heater also comprises heat exchanger and water pipe, and power module, air-blower control driver module, IGNITION CONTROL and flame detection modules.
10. gas heater combustion power control method as claimed in claim 1, is characterized in that: described gas flow controls driver module and is made up of gas ratio valve and associated driver circuitry; The drive singal type that described gas flow controls driver module is pwm pulse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610000433.6A CN105509330B (en) | 2016-01-04 | 2016-01-04 | Combustion power adjusting method for gas water heater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610000433.6A CN105509330B (en) | 2016-01-04 | 2016-01-04 | Combustion power adjusting method for gas water heater |
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| CN105509330A true CN105509330A (en) | 2016-04-20 |
| CN105509330B CN105509330B (en) | 2019-12-06 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201688004U (en) * | 2010-05-18 | 2010-12-29 | 无锡和晶科技股份有限公司 | Proportional valve control and feedback circuit of gas water heater |
| CN103344046A (en) * | 2013-06-28 | 2013-10-09 | 海尔集团公司 | Constant-temperature gas heater control method and constant-temperature gas heater |
| 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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2016
- 2016-01-04 CN CN201610000433.6A patent/CN105509330B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201688004U (en) * | 2010-05-18 | 2010-12-29 | 无锡和晶科技股份有限公司 | Proportional valve control and feedback circuit of gas water heater |
| 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 |
| CN103344046A (en) * | 2013-06-28 | 2013-10-09 | 海尔集团公司 | Constant-temperature gas heater control method and constant-temperature gas heater |
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Inventor after: Luo Jiepei Inventor after: Ling Yun Inventor after: Xiao Shenping Inventor after: Zeng Hongbing Inventor after: Chen Gang Inventor after: Peng Gao Inventor after: Nie Hui Inventor before: Ling Yun Inventor before: Xiao Shenping Inventor before: Zeng Hongbing Inventor before: Chen Gang Inventor before: Peng Gao Inventor before: Nie Hui |
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Effective date of registration: 20201015 Address after: 237000 Democratic constituency of Shiji street, Anfeng Town, Shouxian County, Huainan City, Anhui Province Patentee after: Wang Jingjing Address before: 412007 School of industry, research and production, Hunan University of Technology, 88 West Taishan Road, Zhuzhou, Hunan Patentee before: HUNAN University OF TECHNOLOGY Effective date of registration: 20201015 Address after: No.76 Minfeng South Road, Nanfeng Town, Zhangjiagang City, Suzhou City, Jiangsu Province Patentee after: ZHANGJIAGANG DONGDA INDUSTRIAL TECHNOLOGY Research Institute Address before: 237000 Democratic constituency of Shiji street, Anfeng Town, Shouxian County, Huainan City, Anhui Province Patentee before: Wang Jingjing |
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