CN105466035A - Constant-temperature gas water heater remotely regulating temperature and having output gain self-adaptive adjustment function - Google Patents
Constant-temperature gas water heater remotely regulating temperature and having output gain self-adaptive adjustment function Download PDFInfo
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- CN105466035A CN105466035A CN201610000427.0A CN201610000427A CN105466035A CN 105466035 A CN105466035 A CN 105466035A CN 201610000427 A CN201610000427 A CN 201610000427A CN 105466035 A CN105466035 A CN 105466035A
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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 constant-temperature gas water heater remotely regulating temperature and having an output gain self-adaptive adjustment function. The constant-temperature gas water heater comprises a cold water inlet and two hot water outlets; the outlet hot water temperature of the constant-temperature gas water heater is remotely regulated by adopting a method of controlling a two-way hot water flow relative value through a water valve; and when a ratio of the outlet hot water flow of the first hot water outlet to the inlet cold water flow of the cold water inlet is increased, the outlet hot water temperature is increased, otherwise, the outlet hot water temperature is reduced. The temperature control of the constant-temperature gas water heater adopts an algorithm of adaptively regulating PID control to output gain according to the inlet cold water temperature and the flow, thereby reducing interference of the inlet cold water temperature and the flow change to the outlet hot water temperature of the constant-temperature gas water heater and improving control precision. According to the method, a wired or wireless remote controller is not required, remote regulation on the hot water temperature of the constant-temperature gas water heater can be realized, and the control results are stable and reliable.
Description
Technical field
The present invention relates to a kind of constant temp gas water heater, the constant temp gas water heater of especially a kind of remote adjustment temperature and band output gain self-adaptative adjustment.
Background technology
If the setting of constant temp gas water heater temperature is improper, to make troubles to people, particularly when shower, the constant temp gas water heater temperature not with wireless remote control or remote line traffic control cannot regulate, and adds cold water easily cause again constant temp gas water heater to stop working with mixed water valve.Adopt wireless remote control regulating thermostatic gas and hot water actuator temperature, by the restriction of installation site, a lot of occasion remote controller signal cannot be sent to constant temp gas water 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 constant temp gas water heater provides a solution, namely can regulate the constant temp gas water heater of temperature at a distance.
To achieve these goals, the invention provides the constant temp gas water heater of a kind of remote adjustment temperature and band output gain self-adaptative adjustment, comprising:
Described constant temp gas water heater includes controller, heat exchanger, the first Hall water flow sensor, the second Hall water flow sensor, cold water temperature sensor, hot 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 cold water pipe, or is arranged on the main hot-water line of main hot-water line, for detecting the entrance cold water flow of cold water water inlet; Described second 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 cold water temperature sensor is arranged on cold water pipe, for detecting the entrance cold water temperature of cold water inlet; Described hot water temperature sensor is arranged on main hot-water line, for detecting outlet hot water's temperature of constant temp gas water heater.
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 hot water temperature sensor is provided with hot water temperature's signal output part, and gas flow controls driver module and is provided with gas valve driving signal input; Described controller is also provided with cold water temperature signal input part, hot water temperature's signal input part, gas valve drive singal output; Described cold water temperature signal input part is connected to cold water temperature signal output part, and hot water temperature's signal input part is connected to hot water temperature's signal output part, and gas valve drive singal output is connected to gas valve driving signal input.
The method of described constant temp gas water heater adjustment temperature is:
The desired temperature of constant temp gas water heater is by the Ratio control between outlet hot water's flow of the first hot water outlet and the entrance cold water flow of cold water water inlet; When the ratio of the entrance cold water flow of the relative cold water water inlet of outlet hot water's flow of the first hot water outlet increases, increase desired temperature; When the ratio of the entrance cold water flow of the relative cold water water inlet of outlet hot water's flow of the first hot water outlet reduces, reduce desired temperature.
Temperature controller and adaptive adjusting gain device is included in controller.
Temperature controller calculates the aperture set-point of burnt gas valve according to the deviate between desired temperature and outlet hot water's temperature of constant temp gas water heater, and the control algolithm of temperature controller adopts pid algorithm.
Adaptive adjusting gain device calculates gain adjustment factor according to the entrance cold water temperature of cold water inlet and entrance cold water flow.
The gain adjustment factor that the output gain of temperature controller is exported by adaptive adjusting gain device adjusts.
Controller controls according to the aperture of aperture controlling value to burnt gas valve of burnt gas valve, thus changes the hot exchange power of heat exchanger, maintains outlet hot water's temperature stabilization of warm gas heater.
Ratio between outlet hot water's flow of described first 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 constant temp gas water heater respectively by water pipe.Or the ratio between outlet hot water's flow of described first 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 constant temp gas water heater through water pipe, the water inlet of the second control valve is connected to the second hot water outlet of constant temp gas water 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 desired temperature
t0 according to formula
Calculate, wherein,
t0 is desired temperature,
tLminimum temperature setting value,
q1 is the entrance cold water flow of cold water inlet,
q2 is outlet hot water's flows of the first hot water outlet,
kit is temperature regulating range coefficient.
The gain adjustment factor adjustment that the output gain of described temperature controller is exported by adaptive adjusting gain device, method is, using the aperture controlling value of the product of gain adjustment factor and aperture set-point as burnt gas valve.
When the entrance cold water temperature of cold water inlet reduces, increase gain adjustment factor; When the entrance cold water temperature of cold water inlet increases, reduce gain adjustment factor; When the entrance cold water flow of cold water inlet reduces, reduce gain adjustment factor; When the entrance cold water flow of cold water inlet increases, increase gain adjustment factor.
Described gain adjustment factor is according to formula
Calculate, wherein,
mit is gain adjustment factor;
t2 is entrance cold water temperatures of cold water inlet;
t1 is Gain tuning reference temperature value, and interval is 10 ~ 30;
k0 is reference gain regulation coefficient, and interval is 0.5 ~ 1.5;
k1 is sensitivity adjustment coefficient, and interval is 0 ~ 0.003.
Described aperture controlling value is according to formula
Calculate, wherein,
rfor the aperture controlling value of burnt gas valve;
rminfor the minimum aperture controlling value of burnt gas valve, interval is 0 ~ 0.5.
The method that described controller carries out temperature regulable control is:
Step S1, initializes;
Step S2, samples to the entrance cold water flow of cold water water inlet, outlet hot water's flow of the first hot water outlet; The entrance cold water temperature of cold water inlet and outlet hot water's temperature of constant temp gas water heater are sampled;
Step S3, accounting temperature setting value;
Step S4, calculates aperture set-point; Calculated gain coefficient; Calculate aperture controlling value;
Step S5, changes the aperture of burnt gas valve according to aperture controlling value, change heat exchanger power, controls outlet hot water's temperature of constant temp gas water heater;
Step S6, other process and wait; Sampling instant next time then, forwards step S2 to.
Described constant temp gas water 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 and control two-way hot water flow change desired temperature by water valve, realize the remote adjustment of constant temp gas water heater hot water temperature; In conjunction with the method for entrance cold water temperature and Flow-rate adjustment controller output gain, reduce entrance cold water temperature and changes in flow rate to the interference of outlet hot water's temperature of constant temp gas water heater, alleviate the control burden of temperature controller, improve control accuracy.
Accompanying drawing explanation
Fig. 1 is constant temp gas water heater embodiment 1 structured flowchart of remote adjustment temperature and band output gain self-adaptative adjustment.
Fig. 2 is constant temp gas water heater embodiment 2 structured flowchart of remote adjustment temperature and band output gain self-adaptative adjustment.
Fig. 3 is constant temp gas water heater detection control schematic block circuit diagram.
Fig. 4 is the control system theory diagram of constant temp gas water heater.
Fig. 5 is temperature regulable control 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.
Constant temp gas water heater embodiment 1 structured flowchart of remote adjustment temperature and band output gain self-adaptative adjustment as shown in Figure 1, wherein, constant temp gas water heater comprises heat exchanger 101, first Hall water flow sensor 201, second Hall water flow sensor 202, cold water temperature sensor 206, hot water temperature sensor 207, first hot water outlet 203, second hot water outlet 204, cold water inlet 205, cold water pipe 401, main hot-water line 402, first hot-water line 403, second hot-water line 404; And jointly 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 remote adjustment temperature with constant temp gas water heater.
Described constant temp gas water 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.First Hall water flow sensor 201 is arranged on cold water pipe 401, or is arranged on main hot-water line 402.Second Hall water flow sensor 202 is arranged on the first hot-water line 403.
2 water inlets of mixed water valve 301 are connected to the first hot water outlet 203, second hot water outlet 204 of constant temp gas water 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.Cold water temperature sensor 206 is arranged on cold water pipe 401; Hot water temperature sensor 207 is arranged on main hot-water line 402.
Constant temp gas water heater embodiment 2 structured flowchart of remote adjustment temperature and band output gain self-adaptative adjustment 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 constant temp gas water heater water inlet through the first connecting water pipe 405 is connected to the second hot water outlet 204 of constant temp gas water 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 constant temp gas water heater also includes controller 210, gas flow controls driver module 211, and constant temp gas water 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 the entrance cold water flow of cold water water inlet 205, 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 first hot water outlet 203, 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.Hot water temperature sensor 207 is provided with hot water temperature's signal output part OUT5, and for detecting outlet hot water's temperature of constant temp gas water heater, hot water temperature's 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 the first pulse signal input terminal IN1, the second pulse signal input terminal IN2; 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.
Controller 210 is also provided with cold water temperature signal input part IN3, hot water temperature's signal input part IN5, gas valve drive singal output OUT4; Cold water temperature signal input part IN3 is connected to cold water temperature signal output part OUT3, and hot water temperature's signal input part IN5 is connected to hot water temperature's signal output part OUT5, and gas valve drive singal output OUT4 is connected to gas valve driving signal input IN4.
As shown in Figure 4, control principle is as follows for the control system theory diagram of described constant temp gas water heater:
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 remote adjustment desired temperature 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
t0; If outlet hot water's flow of the entrance cold water flow of cold water water inlet 205, the first hot water outlet 203 is respectively
q1,
q2, then when
q2 is relative
qduring 1 increase, desired temperature
t0 increases; When
q2 is relative
q1 when relatively reducing, desired temperature
t0 reduces.Desired temperature
t0 according to formula
Calculate, wherein,
tLminimum temperature setting value,
kit is temperature regulating range coefficient.The water temperature control interval of water heater is normally between 30 DEG C to 80 DEG C.Select
tL=35 DEG C,
k=35, then desired temperature
t0 is controlled between 35 DEG C to 70 DEG C.Desired temperature
t0 increases, then outlet hot water's temperature of constant temp gas water heater improves; Desired temperature
t0 reduces, then outlet hot water's temperature of constant temp gas water heater reduces.
Temperature controller in controller 210 is according to desired temperature
t0 and hot water temperature
tbetween deviate
ecalculate the aperture set-point of burnt gas valve
r1, the control algolithm of temperature controller adopts pid algorithm.The gain adjustment factor that the output gain of temperature controller is exported by adaptive adjusting gain device
madjustment.
Adaptive adjusting gain device in controller 210 is according to the entrance cold water temperature of cold water inlet 205
t2 and entrance cold water flow
q1, calculate gain adjustment factor
m, carry out self-adaptative adjustment to the output gain of temperature controller, principle is: when the entrance cold water temperature of cold water inlet reduces, increase output gain; When the entrance cold water temperature of cold water inlet increases, reduce output gain; When the entrance cold water flow of cold water inlet reduces, reduce output gain; When the entrance cold water flow of cold water inlet increases, increase output gain.
Gain adjustment factor
maccording to formula
Calculate, wherein,
t2 is entrance cold water temperatures of cold water inlet;
t1 is Gain tuning reference temperature value, and interval is 10 ~ 30, and representative value is 25;
k0 is reference gain regulation coefficient, and interval is 0.5 ~ 1.5, and representative value is 1;
k1 is sensitivity adjustment coefficient, and interval is 0 ~ 0.003, and representative value is 0.0015.
Compensatory control reduce entrance cold water temperature change and changes in flow rate to the interference of outlet hot water's temperature of constant temp gas water heater, alleviate temperature controller control bear, improve control accuracy.
The aperture controlling value of burnt gas valve
rfor aperture set-point
r1 and gain adjustment factor
kproduct, controller 210 is according to aperture controlling value
rthe aperture of burnt gas valve is controlled, thus changes the hot exchange power of heat exchanger
p, maintain outlet hot water's temperature stabilization of warm constant temp gas water heater.
raccording to formula
Calculate, wherein
rminfor the minimum aperture controlling value of burnt gas valve, interval is 0 ~ 0.5.
When the aperture of burnt gas valve increases, the hot exchange power of constant temp gas water heater
pincrease; When the aperture of burnt gas valve reduces, the hot exchange power of constant temp gas water heater
preduce.
Described flow
q1,
qthe unit of 2 is L/min; Desired temperature
t0, minimum temperature setting value
tL, hot water temperature
t, entrance cold water temperature
t2, Gain tuning reference temperature value
tthe unit of 1 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 and hot water temperature's signal that hot water temperature sensor 207 exports are data signal, cold water temperature signal input part IN3, hot water temperature's signal input part IN5 are the corresponding interface that microcontroller mates with cold water temperature sensor 206, hot water temperature sensor 207 output interface.
When some or all of in cold water temperature signal, hot water temperature's signal is analog signal, be voltage, or during electric current, in cold water temperature signal input part IN3, hot water temperature's signal input part IN5, 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
r;
rwhen=1, the dutycycle of pwm pulse is 100%;
rwhen=0.5, the dutycycle of pwm pulse is 50%.Aforementioned
rmineffect 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 constant temp gas water heater also comprises air-blower control driver module, IGNITION CONTROL and flame detection modules etc.Further, described constant temp gas water heater also optionally comprises part of module in 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 Hall water flow sensor 201, second Hall water flow sensor 202, cold water temperature sensor 206, hot water temperature sensor 207, gas flow.
Controller 210 carries out the flow process of temperature regulable control as shown in Figure 5, and the step of temperature control method is:
Step S1, initializes;
Step S2, to the entrance cold water flow of cold water water inlet 205, outlet hot water's flow of the first hot water outlet 203
q1,
q2 sample; To the entrance cold water temperature of cold water inlet 205
t2 and outlet hot water's temperature of constant temp gas water heater
tsample;
Step S3, accounting temperature setting value
t0;
Step S4, calculates aperture set-point
r1; Calculated gain coefficient
m; Calculate aperture controlling value
r;
Step S5, according to
rchange the aperture of burnt gas valve, change heat exchanger power
p, control outlet hot water's temperature of constant temp gas water heater
t;
Step S6, other process and wait; Sampling instant next time then, forwards step S2 to.
Controller 210, except controlling the combustion power of constant temp gas water heater, also will carry out other controls of constant temp gas water heater.Other process described and wait, comprise air-blower control driving, IGNITION CONTROL etc. that controller 210 needs complete, and wait for.
Described in determining, the method then of sampling instant is next time that 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, hot water temperature sensor 207 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 constant temp gas water heater for remote adjustment temperature and band output gain self-adaptative adjustment, is characterized in that:
Described constant temp gas water heater includes controller, heat exchanger, the first Hall water flow sensor, the second Hall water flow sensor, cold water temperature sensor, hot 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 cold water pipe, or is arranged on the main hot-water line of main hot-water line, for detecting the entrance cold water flow of cold water water inlet; Described second 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 cold water temperature sensor is arranged on cold water pipe, for detecting the entrance cold water temperature of cold water inlet; Described hot water temperature sensor is arranged on main hot-water line, for detecting outlet hot water's temperature of constant temp gas water heater;
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 hot water temperature sensor is provided with hot water temperature's signal output part, and gas flow controls driver module and is provided with gas valve driving signal input; Described controller is also provided with cold water temperature signal input part, hot water temperature's signal input part, gas valve drive singal output; Described cold water temperature signal input part is connected to cold water temperature signal output part, and hot water temperature's signal input part is connected to hot water temperature's signal output part, and gas valve drive singal output is connected to gas valve driving signal input;
The method of described constant temp gas water heater adjustment temperature is:
The desired temperature of constant temp gas water heater is by the Ratio control between outlet hot water's flow of the first hot water outlet and the entrance cold water flow of cold water water inlet; When the ratio of the entrance cold water flow of the relative cold water water inlet of outlet hot water's flow of the first hot water outlet increases, increase desired temperature; When the ratio of the entrance cold water flow of the relative cold water water inlet of outlet hot water's flow of the first hot water outlet reduces, reduce desired temperature;
Temperature controller and adaptive adjusting gain device is included in controller;
Temperature controller calculates the aperture set-point of burnt gas valve according to the deviate between desired temperature and outlet hot water's temperature of constant temp gas water heater, and the control algolithm of temperature controller adopts pid algorithm;
Adaptive adjusting gain device calculates gain adjustment factor according to the entrance cold water temperature of cold water inlet and entrance cold water flow;
The gain adjustment factor that the output gain of temperature controller is exported by adaptive adjusting gain device adjusts;
Controller controls according to the aperture of aperture controlling value to burnt gas valve of burnt gas valve, thus changes the hot exchange power of heat exchanger, maintains outlet hot water's temperature stabilization of warm gas heater.
2. the constant temp gas water heater of remote adjustment temperature as claimed in claim 1 and band output gain self-adaptative adjustment, is characterized in that: the ratio between outlet hot water's flow of described first 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 constant temp gas water heater respectively by water pipe.
3. the constant temp gas water heater of remote adjustment temperature as claimed in claim 1 and band output gain self-adaptative adjustment, is characterized in that: the ratio between outlet hot water's flow of described first 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 constant temp gas water heater through water pipe, the water inlet of the second control valve is connected to the second hot water outlet of constant temp gas water 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 constant temp gas water heater of remote adjustment temperature as claimed in claim 1 and band output gain self-adaptative adjustment, is characterized in that: described desired temperature
t0 according to formula
Calculate, wherein,
t0 is desired temperature,
tLminimum temperature setting value,
q1 is the entrance cold water flow of cold water inlet,
q2 is outlet hot water's flows of the first hot water outlet,
kit is temperature regulating range coefficient.
5. the constant temp gas water heater of remote adjustment temperature as claimed in claim 4 and band output gain self-adaptative adjustment, it is characterized in that: the gain adjustment factor that the output gain of described temperature controller is exported by adaptive adjusting gain device adjusts, method is, using the aperture controlling value of the product of gain adjustment factor and aperture set-point as burnt gas valve.
6. the constant temp gas water heater of remote adjustment temperature as claimed in claim 5 and band output gain self-adaptative adjustment, is characterized in that: when the entrance cold water temperature of cold water inlet reduces, increase gain adjustment factor; When the entrance cold water temperature of cold water inlet increases, reduce gain adjustment factor; When the entrance cold water flow of cold water inlet reduces, reduce gain adjustment factor; When the entrance cold water flow of cold water inlet increases, increase gain adjustment factor.
7. the constant temp gas water heater of remote adjustment temperature as claimed in claim 6 and band output gain self-adaptative adjustment, is characterized in that: described gain adjustment factor is according to formula
Calculate, wherein,
mit is gain adjustment factor;
t2 is entrance cold water temperatures of cold water inlet;
t1 is Gain tuning reference temperature value, and interval is 10 ~ 30;
k0 is reference gain regulation coefficient, and interval is 0.5 ~ 1.5;
k1 is sensitivity adjustment coefficient, and interval is 0 ~ 0.003.
8. the constant temp gas water heater of remote adjustment temperature as claimed in claim 7 and band output gain self-adaptative adjustment, is characterized in that: described aperture controlling value is according to formula
Calculate, wherein,
rfor the aperture controlling value of burnt gas valve;
rminfor the minimum aperture controlling value of burnt gas valve, interval is 0 ~ 0.5.
9. the constant temp gas water heater of remote adjustment temperature as claimed in claim 1 and band output gain self-adaptative adjustment, is characterized in that: the method that described controller carries out temperature regulable control is:
Step S1, initializes;
Step S2, samples to the entrance cold water flow of cold water water inlet, outlet hot water's flow of the first hot water outlet; The entrance cold water temperature of cold water inlet and outlet hot water's temperature of constant temp gas water heater are sampled;
Step S3, accounting temperature setting value;
Step S4, calculates aperture set-point; Calculated gain coefficient; Calculate aperture controlling value;
Step S5, changes the aperture of burnt gas valve according to aperture controlling value, change heat exchanger power, controls outlet hot water's temperature of constant temp gas water heater;
Step S6, other process and wait; Sampling instant next time then, forwards step S2 to.
10. the constant temp gas water heater of remote adjustment temperature as claimed in claim 1 and band output gain self-adaptative adjustment, is characterized in that: described constant temp gas water heater also comprises power module, air-blower control driver module, IGNITION CONTROL and flame detection modules.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106642729A (en) * | 2017-01-18 | 2017-05-10 | 广东万家乐燃气具有限公司 | Gas water heater and method for adjusting hot water temperature of gas water heater |
| CN107037837A (en) * | 2017-05-16 | 2017-08-11 | 杭州国彪超声设备有限公司 | A kind of thermostatically-controlled equipment and control method applied to Ultrasonic Cell Disruptor |
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| CN112682947A (en) * | 2020-12-28 | 2021-04-20 | 威能(无锡)供热设备有限公司 | Gas water heating equipment and disturbance compensation control method and readable storage medium thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106642729A (en) * | 2017-01-18 | 2017-05-10 | 广东万家乐燃气具有限公司 | Gas water heater and method for adjusting hot water temperature of gas water heater |
| CN106642729B (en) * | 2017-01-18 | 2022-03-25 | 广东万家乐燃气具有限公司 | Water outlet temperature adjusting method for gas water heater and gas water heater |
| CN107037837A (en) * | 2017-05-16 | 2017-08-11 | 杭州国彪超声设备有限公司 | A kind of thermostatically-controlled equipment and control method applied to Ultrasonic Cell Disruptor |
| CN107728685A (en) * | 2017-11-17 | 2018-02-23 | 北京凌顶科技有限公司 | A kind of intelligent constant-temperature water controling method |
| CN107728685B (en) * | 2017-11-17 | 2023-01-24 | 北京凌顶科技有限公司 | Intelligent constant-temperature water control method |
| CN112682947A (en) * | 2020-12-28 | 2021-04-20 | 威能(无锡)供热设备有限公司 | Gas water heating equipment and disturbance compensation control method and readable storage medium thereof |
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| CN105466035B (en) | 2019-12-06 |
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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 |