CN104296389A - Water temperature control device and water temperature control method for gas water heater - Google Patents
Water temperature control device and water temperature control method for gas water heater Download PDFInfo
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- CN104296389A CN104296389A CN201410519713.9A CN201410519713A CN104296389A CN 104296389 A CN104296389 A CN 104296389A CN 201410519713 A CN201410519713 A CN 201410519713A CN 104296389 A CN104296389 A CN 104296389A
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Abstract
The invention discloses a water temperature control device and a water temperature control method for a gas water heater. The water temperature control method for the gas water heater includes steps that A, detecting to obtain an environment temperature and a water inlet temperature; B, detecting to obtain a water discharge flow rate; C, setting a proper water discharge temperature according to a preset algorithm according to the water discharge flow rate, environment temperature and water inlet temperature; D, obtaining a proportional valve opening degree control voltage according to the proper water discharge temperature; E, regulating gas output amount according to the proportional valve opening degree control voltage to regulate firepower. By means of the water temperature control device and water temperature control method for the gas water heater, the proper water discharge temperature can be regulated automatically according to outside conditions, and the manual regulation is not needed.
Description
Technical field
The present invention relates to a kind of control water temperature device of gas water-heating furnace and control water temperature method.
Background technology
At present, most gas water heater has temperature incubation function, as long as namely user sets the leaving water temperature wanted, the leaving water temperature of gas water-heating furnace can remain at the temperature of setting.The display floater of usual this gas water-heating furnace is provided with switch key and temperature regulating key, user is by pressing its bath water-temperature needed of key assignments, the control system of gas heater regulates required gas quantity according to set water temperature, thus makes leaving water temperature remain on setting value.
Above-mentioned gas burning hot water stove has following shortcoming, before bathing, user needed according to season, leaving water temperature required for the setting such as room temperature and the water yield, if in user's bathing process, the water yield changes (needing to regulate according to bathing), the leaving water temperature that human body sensory is comfortable also can change (when the water yield is large, take away heat many, same water temperature sendible temperature is low, in like manner, the water yield hour, take away heat few, same water temperature sendible temperature is high), because gas water-heating furnace is all arranged on (mandatory provision) outside bathroom, user has a bath in process and feels that water temperature goes manual adjustments water temperature just very inconvenient after whether suitable again.And a lot of old user and some special users (as blind person etc.) carry out water outlet temperature setting operation very large difficulty.
Summary of the invention
In view of this, main purpose of the present invention is provide a kind of control water temperature device of gas water-heating furnace and control water temperature method, can realize automatically regulating suitable leaving water temperature, without the need to manual adjustments according to external condition.
Control water temperature device for gas water-heating furnace provided by the invention, comprising:
Environment temperature detecting unit, for testing environment temperature;
Inflow temperature detecting unit, for detecting gas water-heating furnace inflow temperature;
Suitable leaving water temperature computation subunit 1004, detects the environment temperature that obtains and inflow temperature detecting unit for environmentally temperature detecting unit and detects the inflow temperature calculating obtained and be suitable for leaving water temperature;
Go out water management subelement 1005, for the suitable leaving water temperature export ratio valve opening control voltage calculated according to suitable leaving water temperature computation subunit 1004;
Proportioning valve 104, for exporting gas quantity size according to the proportioning valve aperture control voltage regulating gas water heater going out water management subelement 1005 output.
As from the foregoing, temperature and inflow temperature regulate suitable leaving water temperature, automatically without the need to manual adjustments to adopt the water temperature control device for gas water-heating furnace of technique scheme can realize environmentally.
Wherein, also comprise: water flow detecting unit, for detecting gas water-heating furnace water flow;
The water flow of described suitable leaving water temperature computation subunit 1004 also for detecting according to water flow detecting unit regulates the suitable leaving water temperature calculated.
As from the foregoing, the water temperature control device for gas water-heating furnace of technique scheme is adopted also to regulate the suitable leaving water temperature calculated according to water flow, like this according to different water flow situations, determine that different suitable leaving water temperatures makes it the sensation of human body preferably.
Wherein, also comprise: leaving water temperature detecting unit, for detecting gas water-heating furnace leaving water temperature;
Feedback regulation subelement 1007, the mathematic interpolation Compensation Regulation coefficient of the suitable leaving water temperature after regulating for the leaving water temperature that detects according to leaving water temperature detecting unit and suitable leaving water temperature computation subunit 1004;
Described go out the Compensation Regulation coefficient of water management subelement 1005 also for calculating according to feedback regulation subelement 1007 described proportioning valve aperture control voltage is regulated.
As from the foregoing, the water temperature control device for gas water-heating furnace of technique scheme is adopted also to regulate according to the difference comparative example valve opening of the leaving water temperature detected with the suitable leaving water temperature calculated, make the leaving water temperature of detection consistent with the suitable leaving water temperature calculated, avoid leaving water temperature to depart from suitable leaving water temperature.
Wherein, described water flow detecting unit comprises:
At water flow sensor 101, for detecting that discharge obtains square-wave pulse; With
Water flow computation subunit 1001, calculates water flow for the quantity detecting the square-wave pulse obtained by calculating water flow sensor 101 in certain hour;
Described environment temperature detecting unit comprises:
Environment temperature sensor 102, obtains resistance value corresponding to environment temperature for testing environment temperature; With
Environment temperature computation subunit 1002, detects for environmentally temperature sensor 102 resistance value obtained and calculates corresponding electrical value to determine environment temperature;
Described inflow temperature detecting unit comprises:
Inflow temperature sensor 103, for detecting resistance value corresponding to inflow temperature; With
Inflow temperature computation subunit 1003, calculates corresponding electrical value to determine inflow temperature for detecting according to inflow temperature sensor 103 resistance value obtained;
Described leaving water temperature detecting unit comprises:
Leaving water temperature sensors 105, for detecting that coolant-temperature gage obtains resistance value corresponding to leaving water temperature; With
Leaving water temperature computation subunit 1006, the computing the resistor value for transmitting according to leaving water temperature sensors 105 obtains corresponding electrical value to determine coolant-temperature gage;
As from the foregoing, environment temperature detecting unit, inflow temperature detecting unit and leaving water temperature detecting unit adopt technique scheme to detect environment temperature, inflow temperature and leaving water temperature accurately respectively.
Control water temperature method for gas water-heating furnace provided by the invention, comprises step:
A, testing environment temperature and control water temperature device inflow temperature;
B, calculate suitable leaving water temperature according to the environment temperature detected and inflow temperature;
The suitable leaving water temperature that C, basis calculate obtains proportioning valve aperture control voltage;
D, control the proportioning valve aperture for controlling gas water-heating furnace combustion gas output quantity according to described proportioning valve aperture control voltage.
As from the foregoing, temperature and inflow temperature regulate suitable leaving water temperature, automatically without the need to manual adjustments to adopt the temperature control method of water for gas water-heating furnace of technique scheme can realize environmentally.
Wherein, calculate suitable leaving water temperature described in step B and comprise sub-step:
The inflow temperature that B1, basis are preset determines with Seasonal Model corresponding relation the Seasonal Model that detected inflow temperature is corresponding;
Environment temperature under the described Seasonal Model that B2, basis are preset determines with leaving water temperature corresponding relation the suitable leaving water temperature that detected environment temperature is corresponding.
As from the foregoing, inflow temperature according to presetting determines with Seasonal Model corresponding relation the Seasonal Model that detected inflow temperature is corresponding, inflow temperature and seasonal relation close, current season can be judged more accurately by inflow temperature, determine with leaving water temperature corresponding relation the suitable leaving water temperature that detected environment temperature is corresponding again according to the environment temperature under the described Seasonal Model preset, environment temperature and human feeling in close relations, environmentally temperature can determine the leaving water temperature of human feeling preferably.
Wherein, also comprise before step B: detect gas water-heating furnace water flow;
Step B also regulates the suitable leaving water temperature calculated according to detected water flow.
As from the foregoing, the temperature control method of water for gas water-heating furnace of technique scheme is adopted also to regulate the suitable leaving water temperature calculated according to water flow, like this according to different water flow situations, determine that different suitable leaving water temperatures makes it the sensation of human body preferably.
Preferably, describedly the suitable leaving water temperature calculated is regulated to comprise according to detected water flow:
Water flow according to presetting determines with the corresponding relation of leaving water temperature the leaving water temperature that will regulate that detected water flow is corresponding.
As from the foregoing, the water flow according to presetting determines with the corresponding relation of leaving water temperature the leaving water temperature that will regulate that detected water flow is corresponding, the basis of existing leaving water temperature is carried out regulate, can regulate fast leaving water temperature.
Wherein, also comprise the step regulating described proportioning valve aperture control voltage after step C, comprising:
Detect gas water-heating furnace leaving water temperature;
According to the leaving water temperature of detection and the mathematic interpolation Compensation Regulation coefficient of described suitable leaving water temperature;
Proportioning valve aperture control voltage according to described Compensation Regulation coefficient adjustment.
As from the foregoing, adopt the temperature control method of water for gas water-heating furnace of technique scheme also to regulate according to the difference comparative example valve opening of the leaving water temperature detected with the suitable leaving water temperature calculated, make the leaving water temperature of detection consistent with the suitable leaving water temperature calculated.
Preferably, the step of described adjustment described proportioning valve aperture control voltage is perform in the cycle.
As from the foregoing, the step of described adjustment described proportioning valve aperture control voltage is perform in the cycle, just regulate according to the difference comparative example valve opening of the leaving water temperature detected with the suitable leaving water temperature calculated at set intervals, avoid leaving water temperature to depart from suitable leaving water temperature.
Accompanying drawing explanation
Fig. 1 is the principle of compositionality figure of the control water temperature device for gas water-heating furnace;
Fig. 2 is each sensor installation site schematic diagram on gas water-heating furnace in the control water temperature device of gas water-heating furnace;
Fig. 3 is the circuit theory diagrams of the control water temperature device for gas water-heating furnace;
Fig. 4 is the flow chart of the control water temperature method for gas water-heating furnace;
Fig. 5 is the particular flow sheet drawing suitable leaving water temperature in the control water temperature method for gas water-heating furnace according to algorithm.
Detailed description of the invention
Fig. 1 is the principle of compositionality figure of the control water temperature device for gas water-heating furnace, as shown in the figure, control water temperature device to comprise: water flow sensor 101, inflow temperature sensor 103, leaving water temperature sensors 105, environment temperature sensor 102, proportioning valve 104 and CPU 100.Wherein, inflow temperature sensor 103, leaving water temperature sensors 105, environment temperature sensor 102, water flow sensor 101 are connected with CPU 100 respectively with proportioning valve 104.Water flow sensor 101 utilizes Hall effect principle to detect that discharge obtains square-wave pulse, exports square-wave pulse and provides discharge computation subunit 1001.
Environment temperature sensor 102 and inflow temperature sensor 103 all utilize thermistor, and (it is according to variations in temperature, there is corresponding change in resistance) principle detected temperatures obtains corresponding resistance value, and output resistance is to environment temperature computation subunit 1002 and inflow temperature computation subunit 1003 respectively.Because environment temperature is the major parameter that setting is suitable for leaving water temperature, is the authenticity ensureing that environment temperature detects, environment temperature sensor 102 is arranged on from the position away from thermal source.Closing on the sidewall of water inlet of outer cover of water heater is arranged in present embodiment.As shown in Figure 2.Here have scavenge port can to carry out heat exchange with the external world away from the thermal treatment zone, because of but relatively more suitable position.Inflow temperature sensor 103 is close to and is arranged on water inlet pipe, as shown in Fig. 2.
Leaving water temperature sensors 105 utilizes thermistor principle detected temperatures to obtain corresponding resistance value equally, and output resistance is to leaving water temperature computation subunit 1006.Leaving water temperature sensors 105 is arranged on outlet pipe, as shown in Figure 2.
CPU 100 comprises: water flow computation subunit 1001, environment temperature computation subunit 1002, inflow temperature computation subunit 1003, suitable leaving water temperature computation subunit 1004, leaving water temperature computation subunit 1006, feedback regulation subelement 1007 and go out water management subelement 1005
Water flow computation subunit 1001 calculates water flow for the quantity by calculating the pulse that (as one minute) water flow sensor 101 transmits in certain hour.
Environment temperature computation subunit 1002 obtains corresponding electrical value for the computing the resistor value that environmentally temperature sensor 102 transmits, as the magnitude of voltage in this example, then by magnitude of voltage determination temperature.
Inflow temperature computation subunit 1003 obtains corresponding electrical value for the computing the resistor value transmitted according to inflow temperature sensor 103, as magnitude of voltage, equally by magnitude of voltage determination inflow temperature.
The environment temperature that suitable leaving water temperature computation subunit 1004 obtains for water flow, the environment temperature computation subunit 1002 obtained according to water flow computation subunit 1001 and the inflow temperature that inflow temperature computation subunit 1003 obtains, calculate suitable leaving water temperature by the algorithm preset.The algorithm preset will be described in detail below.
Leaving water temperature computation subunit 1006 obtains corresponding electrical value for the computing the resistor value transmitted according to leaving water temperature sensors 105, as magnitude of voltage, determines coolant-temperature gage equally by magnitude of voltage.
Feedback regulation subelement 1007 goes out Compensation Regulation coefficient for the mathematic interpolation of the suitable leaving water temperature that the leaving water temperature that calculates according to leaving water temperature computation subunit 1006 and suitable leaving water temperature computation subunit 1004 calculate.Calculate Compensation Regulation coefficient according to the linear function of the described difference set up in advance and Compensation Regulation coefficient or nonlinear function, the absolute value of difference more large compensation adjustment factor is larger.Leaving water temperature is higher than suitable leaving water temperature, and Compensation Regulation coefficient is negative value, for turning down output voltage, leaving water temperature lower than suitable leaving water temperature, Compensation Regulation coefficient be on the occasion of, for heightening output voltage.
Go out water management subelement 1005 and obtain different output voltages for the suitable leaving water temperature adjustment dutycycle obtained according to suitable leaving water temperature computation subunit 1004, Compensation Regulation coefficient also for calculating according to feedback regulation subelement 1007 regulates described output voltage, and output voltage is transferred to proportioning valve 104.
Proportioning valve 104 goes out the size of the voltage swing regulation output gas quantity that water management subelement 1005 exports for basis.The aperture size of proportioning valve 104 determines the size exporting gas quantity, and the aperture of voltage greatly then proportioning valve 104 is large, and export gas quantity large, such firepower just strengthens makes leaving water temperature increase; The aperture of proportioning valve 104 is little, and export gas quantity little, such firepower just weakens makes leaving water temperature reduce.
Water flow sensor 101 and water flow computation subunit 1001 form water flow detecting unit, environment temperature sensor 102 and environment temperature computation subunit 1002 composing environment temperature detecting unit, inflow temperature sensor 103 and inflow temperature computation subunit 1003 form inflow temperature detecting unit, and leaving water temperature sensors 105 and leaving water temperature computation subunit 1006 form leaving water temperature detecting unit.
Fig. 3 is the circuit theory diagrams controlling water temperature device, there is shown CPU and water flow sensor 101, environment temperature sensor 102, inflow temperature sensor 103, physical circuit between leaving water temperature sensors 105 and proportioning valve 104.Also show CPU in figure and blower fan feeds back, physical circuit between main valve, sectioning valve, DC fan, this partial circuit is prior art, is not described in detail herein.
Below in conjunction with the flow chart of the control water temperature method shown in Fig. 1 and Fig. 4, control water temperature method is introduced, after control water temperature device works on power, comprises the following steps:
Step 401, environment temperature sensor 102 and inflow temperature sensor 103 be testing environment temperature and inflow temperature respectively, and the resistance value corresponding to the environment temperature obtain each Autonomous test is transferred to environment temperature computation subunit 1002 and inflow temperature computation subunit 1003 respectively.
Step 402, environment temperature computation subunit 1002 and inflow temperature computation subunit 1003 calculate environment temperature and inflow temperature according to the resistance value received respectively.
Step 403, water flow sensor 101 detect discharge, are transferred to water flow computation subunit 1001 by detecting the square-wave pulse obtained.
Step 404, water flow computation subunit 1001 calculate discharge according to the square-wave pulse received.
The environment temperature that the water flow that step 405, suitable leaving water temperature computation subunit 1004 calculate according to water flow computation subunit 1001, environment temperature computation subunit 1002 calculate and the inflow temperature that inflow temperature computation subunit 1003 calculates, according to the suitable leaving water temperature of algorithm setting preset.
Step 406, go out water management subelement 1005 and obtain proportioning valve aperture control voltage according to the suitable leaving water temperature that suitable leaving water temperature computation subunit 1004 sets, proportioning valve 104 according to the gas quantity of proportioning valve aperture control voltage regulation output, to regulate firepower size.
Step 407, leaving water temperature sensors 105 detect coolant-temperature gage, and the resistance value corresponding to the leaving water temperature obtain detection is transferred to leaving water temperature computation subunit 1006.
Step 408, leaving water temperature computation subunit 1006 calculate leaving water temperature according to the resistance value received.
Step 409, feedback regulation subelement 1007 judge leaving water temperature that coolant-temperature gage computation subunit 1006 calculates go out calculate with suitable leaving water temperature computation subunit 1004 whether be suitable for out water temperature consistent, enter step 410 if inconsistent, otherwise return step 403.
Step 410, feedback regulation subelement 1007 go out the suitable leaving water temperature calculated with suitable leaving water temperature computation subunit 1004 mathematic interpolation according to the leaving water temperature that leaving water temperature computation subunit 1006 calculates goes out Compensation Regulation coefficient.
Step 411, go out water management sub-folk prescription case and can realize automatically regulating suitable leaving water temperature according to external condition, without the need to manual adjustments, use gas heater to bring convenience to user.
Carry out to step 405 the Compensation Regulation coefficient that unit 1005 calculates according to feedback regulation subelement 1007 in detail below to regulate described proportioning valve aperture control voltage, proportioning valve 104 is according to the gas quantity of the proportioning valve aperture control voltage regulation output after adjustment, to regulate firepower size, return step 407.
As from the foregoing, adopt the introduction that above-mentioned technology is thin, first the setting value in the algorithm that will relate to and corresponding relation are described, also can think that following explanation is the foundation of the algorithm that will relate to.
A, the relation set about inflow temperature and Seasonal Model: inflow temperature is less than or equal to 10 degree (lowest temperature values) and determines that current is winter mode, inflow temperature is more than or equal to 22 degree (temperature upper limits) and determines that current is summer mode, confirms as spring and autumn pattern between 10 to 22 degree.
B, relation about environment temperature and water outlet temperature setting under Various Seasonal pattern:
Pattern in the winter time: being suitable for leaving water temperature time environment temperature 15 degree (reference environment temperature in winter) is 42 degree (winter is with reference to suitable leaving water temperatures), environment temperature often raises 1 degree of then suitable leaving water temperature reduction by 0.5 degree, minimum 40 degree (minimum suitable leaving water temperature in winter); Environment temperature often reduces by 1 degree of then suitable leaving water temperature rising 0.5 degree, the highest 45 degree (the highest suitable leaving water temperature in winter).
In spring and autumn pattern: being suitable for leaving water temperature time environment temperature 20 degree (reference environment temperature in spring and autumn) is 40 degree (spring and autumn is with reference to suitable leaving water temperatures), environment temperature often raises 1 degree of then suitable leaving water temperature reduction by 0.5 degree, minimum 37 degree (minimum suitable leaving water temperature in spring and autumn); Environment temperature often reduces by 1 degree of then suitable leaving water temperature rising 0.5 degree, the highest 42 degree (the highest suitable leaving water temperature in spring and autumn).
In summer mode: being suitable for leaving water temperature time environment temperature 25 degree (reference environment temperature in summer) is 38 degree (summer is with reference to suitable leaving water temperatures), environment temperature often raises 1 degree of then leaving water temperature reduction by 0.5 degree, minimum 35 degree (minimum suitable leaving water temperature in summer); Environment temperature often reduces by 1 degree of then leaving water temperature rising 0.5 degree, the highest 40 degree (the highest suitable leaving water temperature in summer).
C, relation about water flow and water outlet temperature setting: due to the water yield large time flow velocity too fast meeting take away a part of heat, therefore be suitable for leaving water temperature when water flow is more than or equal to 6 liters/min and improve 0.5 degree, 2 degree are improved when being more than or equal to 10 liters/min, improve 1 degree when being more than or equal to 8 liters/min, be suitable for leaving water temperature when being less than 4 liters/min and reduce by 0.5 degree.Fig. 5 is the particular flow sheet controlling to draw according to algorithm in water temperature method suitable leaving water temperature, below with reference to Fig. 5, describes in detail, comprise following sub-step to the flow process of the leaving water temperature that setting is suitable for:
Step 501, inflow temperature detection obtained and preset temperature lower limit 10 degree compare, and are greater than 10 degree and enter next step, otherwise judge current as winter mode, perform step C001-C005.
Step 502, inflow temperature detection obtained compare with the temperature upper limit 22 DEG C preset, and are more than or equal to 22 DEG C and judge current as summer mode, perform step H001-H005, otherwise judge current as spring and autumn pattern, perform step M001-M005.
Step M001-M005 is the initial setting step of suitable leaving water temperature under spring and autumn pattern, specific as follows:
Step M001, calculate coolant-temperature gage, adopt formula: default spring and autumn is with reference to suitable leaving water temperature+(environment temperature that detection obtains-default reference environment temperature in spring and autumn) * 0.5.
Step M002-M003, by the leaving water temperature calculated with preset the highest suitable leaving water temperature 42 degree in spring and autumn compare, when the value calculated is greater than the highest suitable leaving water temperature 42 degree in default spring and autumn, initial setting 42 degree is suitable leaving water temperature, otherwise enters step M004.
Step M004-M005, by the leaving water temperature calculated with preset minimum suitable leaving water temperature 37 degree in spring and autumn compare, when the value calculated is less than minimum suitable leaving water temperature 37 degree in default spring and autumn, initial setting 37 degree is suitable leaving water temperature, otherwise enters step 503.
Step C001-C005 is the initial setting step of suitable leaving water temperature under winter mode, specific as follows:
Step C001, calculate coolant-temperature gage, computing formula: default winter is with reference to suitable leaving water temperature+(environment temperature that detection obtains-default reference environment temperature in winter) * 0.5.
Step C002-C003, by the leaving water temperature calculated with preset the highest suitable leaving water temperature 45 degree in winter compare, when the value calculated is greater than the highest suitable leaving water temperature 45 degree in default winter, initial setting 45 degree is suitable leaving water temperature, otherwise enters step C004.
Step C004-C005, by the value calculated with preset minimum suitable leaving water temperature 40 degree in winter compare, when the value calculated is less than minimum suitable leaving water temperature 40 in default winter, initial setting 40 degree is suitable leaving water temperature, otherwise enters step 503.
Step H001-H005 is the initial setting step of suitable leaving water temperature under summer mode, specific as follows:
Step H001, calculate coolant-temperature gage, computing formula: default summer is with reference to suitable leaving water temperature+(environment temperature calculated-default reference environment temperature in summer) * 0.5.
Step H002-H003, by the value calculated with preset the highest suitable leaving water temperature 40 DEG C in summer compare, when the value calculated is greater than the highest suitable leaving water temperature 40 DEG C in default summer, initial setting 40 degree is suitable leaving water temperature, otherwise enters step H004.
Step H004-H005, by the value calculated with preset minimum suitable leaving water temperature 35 degree in summer compare, when the value calculated is less than minimum suitable leaving water temperature 35 degree in default summer, initial setting 35 degree is suitable leaving water temperature, otherwise enters step 503.
Step 503-504, water flow and default water flow 10 liters/min to be compared, when being more than or equal to 10, the leaving water temperature that the suitable leaving water temperature of initial setting or step M001 or step H001 or step C001 calculate is added 2 degree, obtain final suitable leaving water temperature, otherwise enter step 505.
Step 505-506, water flow and default water flow 8 liters/min to be compared, when being more than or equal to 8, the leaving water temperature that the suitable leaving water temperature of initial setting or step M001 or step H001 or step C001 calculate is added 1 degree, obtain final suitable leaving water temperature, otherwise enter step 507.
Step 507-508, water flow and default water flow 6 liters/min to be compared, when being more than or equal to 6, the leaving water temperature that the suitable leaving water temperature of initial setting or step M001 or step H001 or step C001 calculate is added 0.5 degree, obtain final suitable leaving water temperature, otherwise enter step 509.
Step 509-510, water flow and default water flow 4 liters/min to be compared, when being less than 4, the leaving water temperature that the suitable leaving water temperature of initial setting or step M001 or step H001 or step C001 calculate is subtracted 0.5 degree, obtain final suitable leaving water temperature, otherwise enter step 511.
Step 511, the leaving water temperature that the suitable leaving water temperature of initial setting or step M001 or step H001 or step C001 calculated are as final suitable leaving water temperature.
Above-mentioned is only one embodiment of the present of invention, about the relation that inflow temperature and Seasonal Model set, the corresponding relation that more groups of inflow temperatures and Seasonal Model set can be set, such as, inflow temperature be 10 to the 15 degree corresponding early spring or season in late fall pattern, inflow temperature be 16 to 21 degree corresponding late springs or just autumn pattern, meanwhile, the relation of environment temperature and water outlet temperature setting and the relation of water flow and water outlet temperature setting under the pattern of refinement Various Seasonal more.Even if like this can environment temperature or water flow change trickle, still leaving water temperature is regulated, makes it very suitable human feeling.
The algorithm preset described in step 405 also can in the following way:
The first functional relation y1=f (x1 of the leaving water temperature y1 of initial setting and environment temperature x1 and inflow temperature x2, x2), the second functional relation y2=f (x2, y1) of the final leaving water temperature y2 of setting and the leaving water temperature y1 of water flow x2 and initial setting.First, suitable leaving water temperature computation subunit 1004 is according to the first functional relation y1=f (x1, x2) draw the leaving water temperature y1 of initial setting, then draw the leaving water temperature y2 of final setting according to the second functional relation y2=f (x2, y1).This functional relation also can be written as: y2=f (x2, f (x1, x2))
Adopt above-mentioned default algorithm, the leaving water temperature of inflow temperature, environment temperature and initial setting has functional relation one to one, the leaving water temperature of water flow, initial setting has functional relation one to one with the leaving water temperature finally set, and the leaving water temperature of so final setting is more accurate.As from the foregoing, the suitable leaving water temperature that the various situations that the present invention considers inflow temperature and water flow factor set, can meet the needs of user to bath water-temperature, and adjust coolant-temperature gage according to the change of water flow at any time, user-friendly.
Claims (8)
1. a control water temperature device for gas water-heating furnace, comprising: environment temperature detecting unit, for testing environment temperature; Inflow temperature detecting unit, for detecting gas water-heating furnace inflow temperature; Water flow detecting unit, for detecting gas water-heating furnace water flow; Suitable leaving water temperature computation subunit (1004), detect the environment temperature that obtains and inflow temperature detecting unit for environmentally temperature detecting unit to detect the inflow temperature obtained and calculate suitable leaving water temperature, the water flow also for detecting according to water flow detecting unit regulates the suitable leaving water temperature calculated; Go out water management subelement (1005), for the suitable leaving water temperature export ratio valve opening control voltage calculated according to suitable leaving water temperature computation subunit (1004); Proportioning valve (104), for exporting gas quantity size according to going out the proportioning valve aperture control voltage regulating gas water heater that water management subelement (1005) exports.
2. the control water temperature device of a kind of gas water-heating furnace according to claim 1, is characterized in that, also comprise: leaving water temperature detecting unit, for detecting gas water-heating furnace leaving water temperature; Feedback regulation subelement (1007), the mathematic interpolation Compensation Regulation coefficient of the suitable leaving water temperature after regulating for the leaving water temperature that detects according to leaving water temperature detecting unit and suitable leaving water temperature computation subunit (1004); Described go out the Compensation Regulation coefficient of water management subelement (1005) also for calculating according to feedback regulation subelement (1007) described proportioning valve aperture control voltage is regulated.
3. according to the control water temperature device of a kind of gas water-heating furnace described in claim 2, it is characterized in that, described water flow detecting unit comprises: water flow sensor (101), for detecting that discharge obtains square-wave pulse; With water flow computation subunit (1001), calculate water flow for the quantity detecting the square-wave pulse obtained by calculating water flow sensor (101) in certain hour; Described environment temperature detecting unit comprises: environment temperature sensor (102), obtains resistance value corresponding to environment temperature for testing environment temperature; With environment temperature computation subunit (1002), detect for environmentally temperature sensor (102) resistance value obtained and calculate corresponding electrical value to determine environment temperature; Described inflow temperature detecting unit comprises: inflow temperature sensor (103), for detecting resistance value corresponding to inflow temperature; With inflow temperature computation subunit (1003), calculate corresponding electrical value to determine inflow temperature for detecting according to inflow temperature sensor (103) resistance value obtained; Described leaving water temperature detecting unit comprises: leaving water temperature sensors (105), for detecting that coolant-temperature gage obtains resistance value corresponding to leaving water temperature; With leaving water temperature computation subunit (1006), the computing the resistor value for transmitting according to leaving water temperature sensors (105) obtains corresponding electrical value to determine coolant-temperature gage.
4. a control water temperature method for gas water-heating furnace, is characterized in that, comprise step: A, testing environment temperature and gas water-heating furnace inflow temperature; Detect gas water-heating furnace water flow; B, calculate suitable leaving water temperature according to the environment temperature detected and inflow temperature, also regulate the suitable leaving water temperature calculated according to detected water flow; The suitable leaving water temperature that C, basis calculate obtains proportioning valve aperture control voltage; D, control the proportioning valve aperture for controlling gas water-heating furnace combustion gas output quantity according to described proportioning valve aperture control voltage.
5. the control water temperature method of a kind of gas water-heating furnace according to claim 4, it is characterized in that, calculate suitable leaving water temperature described in step B and comprise sub-step: the inflow temperature that B1, basis are preset determines with Seasonal Model corresponding relation the Seasonal Model that detected inflow temperature is corresponding; Environment temperature under the described Seasonal Model that B2, basis are preset determines with leaving water temperature corresponding relation the suitable leaving water temperature that detected environment temperature is corresponding.
6. according to the control water temperature method of a kind of gas water-heating furnace described in claim 4, it is characterized in that, describedly regulate the suitable leaving water temperature calculated to comprise according to detected water flow: the water flow according to presetting determines with the corresponding relation of leaving water temperature the leaving water temperature that will regulate that detected water flow is corresponding.
7. the control water temperature method of a kind of gas water-heating furnace according to claim 4, is characterized in that, also comprises the step regulating described proportioning valve aperture control voltage, comprising after step C: detect gas water-heating furnace leaving water temperature; According to the leaving water temperature of detection and the mathematic interpolation Compensation Regulation coefficient of described suitable leaving water temperature; Proportioning valve aperture control voltage according to described Compensation Regulation coefficient adjustment.
8. according to the control water temperature method of a kind of gas water-heating furnace described in claim 7, it is characterized in that, the step of described adjustment described proportioning valve aperture control voltage is perform in the cycle.
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| CN107152787A (en) * | 2017-06-27 | 2017-09-12 | 翁毅 | Electric heater intelligent thermoregulating system |
| CN107525281A (en) * | 2017-10-09 | 2017-12-29 | 珠海格力电器股份有限公司 | A kind of burnt gas wall hanging furnace temperature control method of water and system |
| CN110068152B (en) * | 2018-01-23 | 2021-11-12 | 青岛经济技术开发区海尔热水器有限公司 | Control method of gas water heater and gas water heater |
| CN110068152A (en) * | 2018-01-23 | 2019-07-30 | 青岛经济技术开发区海尔热水器有限公司 | A kind of control method and gas heater of gas heater |
| CN110220311A (en) * | 2018-03-01 | 2019-09-10 | 芜湖美的厨卫电器制造有限公司 | The control method of water-heater system, mixed water terminal and water heater |
| CN109237798A (en) * | 2018-08-08 | 2019-01-18 | 珠海格力电器股份有限公司 | A kind of control method and gas combustion apparatus of gas combustion apparatus |
| CN111457460A (en) * | 2020-05-18 | 2020-07-28 | 珠海格力电器股份有限公司 | Zero-cold-water heater system, control method thereof and computer-readable storage medium |
| CN111457460B (en) * | 2020-05-18 | 2024-03-19 | 珠海格力电器股份有限公司 | Zero cold water heater system, control method thereof and computer readable storage medium |
| CN112113347A (en) * | 2020-09-14 | 2020-12-22 | 华帝股份有限公司 | Control method of water heater and water heater |
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