CN105444426A - Gas-fired water heater with remote temperature adjustment function - Google Patents
Gas-fired water heater with remote temperature adjustment function Download PDFInfo
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- CN105444426A CN105444426A CN201610000434.0A CN201610000434A CN105444426A CN 105444426 A CN105444426 A CN 105444426A CN 201610000434 A CN201610000434 A CN 201610000434A CN 105444426 A CN105444426 A CN 105444426A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
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- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
Abstract
The invention discloses a gas-fired water heater with a remote temperature adjustment function. The gas-fired water heater comprises two hot water outlets. The combustion power of the gas-fired water heater is changed through the method that the flow amounts of two paths of hot water are controlled remotely through a water valve. The water opening hot water temperature of the water heater is controlled through the method that the combustion power is compensated by combining inlet cold water temperature and inlet cold water flow. When the hot water flow of the first hot water outlet is increased relatively and the hot water flow of the second hot water outlet is reduced relatively, the temperature is controlled to be increased. When the hot water flow of the first hot water outlet is decreased relatively and the hot water flow of the second hot water outlet is increased relatively, the temperature is controlled to be lowered. A wired or wireless remote control is not needed, remote adjustment on the hot water temperature of the gas-fired water heater can be achieved, and the adjustment result is stable and reliable.
Description
Technical field
The present invention relates to a kind of gas heater, especially a kind of gas heater of remote adjustment temperature.
Background technology
If the setting of gas heater temperature is improper, will make troubles 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 hot water temperature that the object of the invention is for far distance controlled gas heater provides a solution, namely can regulate the gas heater of temperature at a distance.
To achieve these goals, the invention provides a kind of gas heater of remote adjustment temperature, comprising:
Described gas heater includes controller, heat exchanger, the first Hall water flow sensor, the second Hall water flow sensor, cold water temperature sensor, gas flow control driver module, the first hot water outlet, the second hot water outlet, cold water inlet and cold water pipe, main hot-water line, the first hot-water line, the second hot-water line.
Described cold water pipe is connected between cold water inlet and heat exchanger; One end of described first hot-water line is connected to the first hot water outlet, and one end is communicated to main hot-water line water side in addition; One end of described second hot-water line is connected to the second hot water outlet, and one end is communicated to main hot-water line water side in addition; The water intake end of described main hot-water line is connected to heat exchanger.
Described first Hall water flow sensor is arranged on the first hot-water line, for detecting outlet hot water's flow of the first hot water outlet; Described second Hall water flow sensor is arranged on the second hot-water line, for detecting outlet hot water's flow of the second hot water outlet; Described cold water temperature sensor is arranged on cold water pipe, for detecting the entrance cold water temperature of cold water inlet.
Described first Hall water flow sensor is provided with the first pulse signal output end, and the second Hall water flow sensor is provided with the second pulse signal output end; Described controller is provided with the first pulse signal input terminal and the second pulse signal input terminal, and described first pulse signal input terminal, the second pulse signal input terminal are connected to the first pulse signal output end, the second pulse signal output end respectively.
Described cold water temperature sensor is provided with cold water temperature signal output part, and described controller is provided with cold water temperature signal input part, and described cold water temperature signal output part is connected to cold water temperature signal input part; Described gas flow controls driver module and is provided with gas valve driving signal input, and described controller is provided with gas valve drive singal output, and described gas valve driving signal input is connected to gas valve drive singal output.
Described gas heater controls the aperture of burnt gas valve by the relative size of outlet hot water's flow of the first hot water outlet, the second hot water outlet; When outlet hot water's flow of the first hot water outlet relatively increase, outlet hot water's flow of the second hot water outlet relatively reduce time, the aperture controlling burnt gas valve increases; When outlet hot water's flow of the first hot water outlet relatively reduce, outlet hot water's flow of the second hot water outlet relatively increase time, the aperture controlling burnt gas valve reduces; The aperture compensating burnt gas valve is superposed by the entrance cold water temperature of cold water inlet; When the entrance cold water temperature of cold water inlet reduces, the aperture controlling burnt gas valve increases; When the entrance cold water temperature of cold water inlet increases, the aperture controlling burnt gas valve reduces; The aperture compensating burnt gas valve is superposed by the entrance cold water flow of cold water inlet; When the entrance cold water flow of cold water inlet increases, the aperture controlling burnt gas valve increases; When the entrance cold water flow of cold water inlet reduces, the aperture controlling burnt gas valve reduces.
The aperture of described burnt gas valve increases, then gas heater combustion power increases, and outlet of water heater hot water temperature increase; The aperture of described burnt gas valve reduces, then gas heater combustion power reduces, and outlet of water heater hot water temperature reduces.
Outlet hot water's flow of the first hot water outlet, the second hot water outlet controls 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.
Outlet hot water's flow of described first hot water outlet, the second hot water outlet or respectively by the first control valve, the second governor valve control; 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.
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,
pthe aperture controlling value of burnt gas valve,
q1,
q2 is outlet hot water's flow of the first hot water outlet, the second hot water outlet respectively,
t1 is entrance cold water temperature;
t0 is standard of compensation temperature value, and interval is 30 ~ 40;
k1 is sensitivity coefficient, and interval is 0.4 ~ 1;
k2 is superposition penalty coefficients, and interval is 0 ~ 0.003;
pminfor the minimum aperture controlling value of burnt gas valve, interval is 0 ~ 0.5.
The step of described controller adjustment temperature is:
Step S1, initializes;
Step S2, samples to outlet hot water's flow of the first hot water outlet, the second hot water outlet; The entrance cold water temperature of cold water inlet is sampled;
Step S3, calculates the aperture controlling value of burnt gas valve;
Step S4, changes the aperture of burnt gas valve, controls gas and hot water actuator temperature according to the aperture controlling value of burnt gas valve;
Step S5, other process and wait; Sampling instant next time then, forwards step S2 to.
Described gas heater also comprises 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 the method being controlled two-way hot water flow by water valve, realize the remote adjustment of gas heater hot water temperature, regulate result reliable and stable.
Accompanying drawing explanation
Fig. 1 is gas heater embodiment 1 structured flowchart of remote adjustment temperature.
Fig. 2 is gas heater embodiment 2 structured flowchart of remote adjustment temperature.
Fig. 3 is detection control schematic block circuit diagram.
Fig. 4 is that controller carries out thermoregulator flow chart.
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.
Gas heater embodiment 1 structured flowchart of remote adjustment temperature as shown in Figure 1, wherein, gas heater comprises heat exchanger 101, first Hall water flow sensor 201, second Hall water flow sensor 202, first hot water outlet 203, second hot water outlet 204, cold water inlet 205, cold water temperature sensor 206, cold water pipe 401, main hot-water line 402, first hot-water line 403, second hot-water line 404; And realize mixed water valve 301, first connecting water pipe 405, second connecting water pipe 406, heat of mixing water pipe 407, the Water outlet spray head 302 of common remote adjustment temperature with gas heater.
Described gas heater has 1 cold water inlet and 2 hot water outlets, and cold water pipe 401 is connected between cold 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.Described first Hall water flow sensor 201 is arranged on the first hot-water line 403, and the second Hall water flow sensor 202 is arranged on the second hot-water line 404.Described cold water temperature sensor 206 is arranged on cold water pipe 401.
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 inlet of mixed water valve 301.
Gas heater embodiment 2 structured flowchart of remote adjustment temperature 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.First Hall water flow sensor 201 is provided with the first pulse signal output end OUT1, and for detecting outlet hot water's flow of the first hot water outlet 203, the signal type of the first pulse signal is pulse frequency.Second Hall water flow sensor 202 is provided with the second pulse signal output end OUT2, and for detecting outlet hot water's flow of the second hot water outlet 204, the signal type of the second pulse signal is pulse frequency.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.
Controller 210 is provided with the first pulse signal input terminal IN1, the second pulse signal input terminal IN2, cold water temperature signal input part IN3, gas valve drive singal output OUT4; First pulse signal input terminal IN1, the second pulse signal input terminal IN2 are connected to the first pulse signal output end OUT1, the second pulse signal output end OUT2 respectively; Cold water temperature signal input part IN3 is connected to cold water temperature signal output part OUT3; Gas valve drive singal output OUT4 is connected to gas valve driving signal input IN4.
The operation principle of the gas heater of described remote adjustment temperature is:
Regulating mixed water valve 301, or regulate 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 aperture of burnt gas valve is controlled by the relative size of outlet hot water's flow of the first hot water outlet 203, second hot water outlet 204; When outlet hot water's flow of the first hot water outlet 203 relatively increase, outlet hot water's flow of the second hot water outlet 204 relatively reduce time, the aperture controlling burnt gas valve increases; Otherwise the aperture controlling burnt gas valve reduces.The aperture compensating burnt gas valve is superposed by the entrance cold water temperature of cold water inlet 205; When the entrance cold water temperature of cold water inlet 205 reduces, the aperture controlling burnt gas valve increases; Otherwise the aperture controlling burnt gas valve reduces.The aperture compensating burnt gas valve is superposed by the entrance cold water flow of cold water inlet 205; When the entrance cold water flow of cold water inlet 205 increases, the aperture controlling burnt gas valve increases; Otherwise the aperture controlling burnt gas valve reduces.
The aperture of burnt gas valve increases, then gas heater combustion power increases, and outlet of water heater hot water temperature increase; The aperture of burnt gas valve reduces, then gas heater combustion power reduces, and outlet of water heater hot water temperature reduces.
If outlet hot water's flow of the first hot water outlet 203, second hot water outlet 204 is respectively
q1,
q2, the entrance cold water temperature of cold water inlet 205 is
t1, then the aperture controlling value of burnt gas valve
paccording to formula
Calculate, wherein,
t0 is standard of compensation temperature value, and interval is 30 ~ 40, and representative value is 35;
k1 is sensitivity coefficient, and interval is 0.4 ~ 1, and representative value is 0.5;
k2 is superposition penalty coefficients, and interval is 0 ~ 0.003, and representative value is 0.002;
pminfor the minimum aperture controlling value of burnt gas valve, interval is 0 ~ 0.5.
Described flow
q1,
qthe unit of 2 is L/min; Entrance cold water temperature
t1, standard of compensation temperature value
tthe unit of 0 is DEG C.
Flow
q1,
qthe 2 pulse frequency direct proportionality exported with the first Hall water flow sensor 201, second Hall water flow sensor 202 respectively.
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.First pulse signal input terminal IN1, the second pulse signal input terminal IN2 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 cold water temperature signal is analog signal, be voltage, or during electric current, cold water temperature signal input part IN3 is the input end of analog signal of A/D converter, described A/D converter is by microprocessor control and read data by microcontroller, 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, and gas valve drive singal is pwm pulse, and 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%.Aforementioned
pmineffect one be 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 constant temp gas water heater also includes power module, for controlling driver module 211 and other module for power supply to controller 210, first flow sensor 201, second quantity sensor 202, cold water temperature sensor 206, gas flow.
Controller 210 carries out thermoregulator flow process as shown in Figure 4, the steps include:
Step S1, initializes;
Step S2, to outlet hot water's flow of the first hot water outlet 203, second hot water outlet 204
q1,
q2 sample; To the entrance cold water temperature of cold water inlet 205
t1 samples;
Step S3, calculates the aperture controlling value of burnt gas valve
p;
Step S4, according to
pchange the aperture of burnt gas valve, control gas and hot water actuator temperature;
Step S5, other process and wait; Sampling instant next time then, forwards step S2 to.
Controller 210, except control gas and hot water actuator temperature, 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 Hall water flow sensor of the preferred same range ability of described first Hall water flow sensor 201, second Hall water flow sensor 202.
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 for remote adjustment temperature, is characterized in that:
Described gas heater includes controller, heat exchanger, the first Hall water flow sensor, the second Hall water flow sensor, cold water temperature sensor, gas flow control driver module, the first hot water outlet, the second hot water outlet, cold water inlet and cold water pipe, main hot-water line, the first hot-water line, the second hot-water line;
Described cold water pipe is connected between cold water inlet and heat exchanger; One end of described first hot-water line is connected to the first hot water outlet, and one end is communicated to main hot-water line water side in addition; One end of described second hot-water line is connected to the second hot water outlet, and one end is communicated to main hot-water line water side in addition; The water intake end of described main hot-water line is connected to heat exchanger;
Described first Hall water flow sensor is arranged on the first hot-water line, for detecting outlet hot water's flow of the first hot water outlet; Described second Hall water flow sensor is arranged on the second hot-water line, for detecting outlet hot water's flow of the second hot water outlet; Described cold water temperature sensor is arranged on cold water pipe, for detecting the entrance cold water temperature of cold water inlet;
Described first Hall water flow sensor is provided with the first pulse signal output end, and the second Hall water flow sensor is provided with the second pulse signal output end; Described controller is provided with the first pulse signal input terminal and the second pulse signal input terminal, and described first pulse signal input terminal, the second pulse signal input terminal are connected to the first pulse signal output end, the second pulse signal output end respectively;
Described cold water temperature sensor is provided with cold water temperature signal output part, and described controller is provided with cold water temperature signal input part, and described cold water temperature signal output part is connected to cold water temperature signal input part; Described gas flow controls driver module and is provided with gas valve driving signal input, and described controller is provided with gas valve drive singal output, and described gas valve driving signal input is connected to gas valve drive singal output;
Described gas heater controls the aperture of burnt gas valve by the relative size of outlet hot water's flow of the first hot water outlet, the second hot water outlet; When outlet hot water's flow of the first hot water outlet relatively increase, outlet hot water's flow of the second hot water outlet relatively reduce time, the aperture controlling burnt gas valve increases; When outlet hot water's flow of the first hot water outlet relatively reduce, outlet hot water's flow of the second hot water outlet relatively increase time, the aperture controlling burnt gas valve reduces; The aperture compensating burnt gas valve is superposed by the entrance cold water temperature of cold water inlet; When the entrance cold water temperature of cold water inlet reduces, the aperture controlling burnt gas valve increases; When the entrance cold water temperature of cold water inlet increases, the aperture controlling burnt gas valve reduces; The aperture compensating burnt gas valve is superposed by the entrance cold water flow of cold water inlet; When the entrance cold water flow of cold water inlet increases, the aperture controlling burnt gas valve increases; When the entrance cold water flow of cold water inlet reduces, the aperture controlling burnt gas valve reduces;
The aperture of described burnt gas valve increases, then gas heater combustion power increases, and outlet of water heater hot water temperature increase; The aperture of described burnt gas valve reduces, then gas heater combustion power reduces, and outlet of water heater hot water temperature reduces.
2. the gas heater of remote adjustment temperature as claimed in claim 1, is characterized in that: outlet hot water's flow of described first hot water outlet, the second hot water outlet controls 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. the gas heater of remote adjustment temperature as claimed in claim 1, is characterized in that: outlet hot water's flow of described first hot water outlet, the second hot water outlet is respectively by the first control valve, the second governor valve control; 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. the gas heater of remote adjustment temperature as claimed in claim 1, 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,
pthe aperture controlling value of burnt gas valve,
q1,
q2 is outlet hot water's flow of the first hot water outlet, the second hot water outlet respectively,
t1 is entrance cold water temperature;
t0 is standard of compensation temperature value, and interval is 30 ~ 40;
k1 is sensitivity coefficient, and interval is 0.4 ~ 1;
k2 is superposition penalty coefficients, and interval is 0 ~ 0.003;
pminfor the minimum aperture controlling value of burnt gas valve, interval is 0 ~ 0.5.
5. the gas heater of remote adjustment temperature as claimed in claim 4, is characterized in that: described in
tthe representative value of 0 is 35 DEG C;
kthe representative value of 1 is 0.5;
kthe representative value of 2 is 0.002.
6. the gas heater of remote adjustment temperature as claimed in claim 4, is characterized in that: described controller carries out thermoregulator step and is:
Step S1, initializes;
Step S2, samples to outlet hot water's flow of the first hot water outlet, the second hot water outlet; The entrance cold water temperature of cold water inlet is sampled;
Step S3, calculates the aperture controlling value of burnt gas valve;
Step S4, changes the aperture of burnt gas valve, controls gas and hot water actuator temperature according to the aperture controlling value of burnt gas valve;
Step S5, other process and wait; Sampling instant next time then, forwards step S2 to.
7. the gas heater of remote adjustment temperature as claimed in claim 6, is characterized in that: other process described and waiting for, be controller except calculating the temperature given value of gas heater, other of the gas heater that also will carry out control, and wait for.
8. the gas heater of remote adjustment temperature as claimed in claim 1, is characterized in that: described first Hall water flow sensor, the second Hall water flow sensor are the Hall water flow sensor of same range ability.
9. the gas heater of remote adjustment temperature as claimed in claim 1, is characterized in that: described gas heater also comprises power module, air-blower control driver module, IGNITION CONTROL and flame detection modules.
10. the gas heater of remote adjustment temperature 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.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610000434.0A CN105444426B (en) | 2016-01-04 | 2016-01-04 | Gas water heater capable of remotely adjusting temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610000434.0A CN105444426B (en) | 2016-01-04 | 2016-01-04 | Gas water heater capable of remotely adjusting temperature |
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| Publication Number | Publication Date |
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| CN105444426B CN105444426B (en) | 2019-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106152537A (en) * | 2016-07-29 | 2016-11-23 | 芜湖美的厨卫电器制造有限公司 | Gas water heater energy-saving control method and gas heater |
| CN110895049A (en) * | 2019-11-29 | 2020-03-20 | 广东万和热能科技有限公司 | Method for remotely controlling water heater |
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| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106152537A (en) * | 2016-07-29 | 2016-11-23 | 芜湖美的厨卫电器制造有限公司 | Gas water heater energy-saving control method and gas heater |
| CN106152537B (en) * | 2016-07-29 | 2019-04-02 | 芜湖美的厨卫电器制造有限公司 | Gas water heater energy-saving control method and gas heater |
| CN110895049A (en) * | 2019-11-29 | 2020-03-20 | 广东万和热能科技有限公司 | Method for remotely controlling water heater |
| CN110895049B (en) * | 2019-11-29 | 2021-07-13 | 广东万和热能科技有限公司 | Method for remotely controlling water heater |
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| CN105444426B (en) | 2019-12-06 |
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Inventor after: Zeng Xiaohong Inventor after: Wang Bing Inventor after: Ling Yun Inventor after: Guo Yanjie Inventor after: Wen Dingdu Inventor after: Zeng Hongbing Inventor after: Chen Gang Inventor before: Wang Bing Inventor before: Ling Yun Inventor before: Guo Yanjie Inventor before: Wen Dingdu Inventor before: Zeng Hongbing Inventor before: Chen Gang |
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Effective date of registration: 20201013 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 Effective date of registration: 20201013 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 |