CN205316688U - Gas heater hot water temperature remotely adjusting device - Google Patents

Abstract

The utility model discloses a gas heater hot water temperature remotely adjusting device comprises a flow measurement unit, the 2nd flow measurement unit, adder circuit unit, proportion value calculating unit, flow threshold switching unit and proportional valve drive unit. Gas heater adopts the method through two way hot water flow of water valve remote control to change hot water temperature including first hot water delivery port and second hot water delivery port, when first hot water delivery port hot water flow increases relatively, the increase of gas heater's combustion power, hot water temperature rises, when first hot water delivery port hot water flow reduced relatively, gas heater's combustion power reduced, and hot water temperature descends. The device need not wiredly or the wireless remote control ware, can realize gas heater hot water temperature's remotely adjusting, and control results is reliable and stable.

Description

A kind of gas heater hot water temperature's long range regulation apparatus

Technical field

This utility model relates to a kind of gas heater, especially a kind of gas heater hot water temperature's long range regulation apparatus.

Background technology

If gas heater temperature sets improper, bringing very big inconvenience to people, particularly when shower, the gas and hot water actuator temperature without wireless remote control or remote line traffic control cannot regulate, and is easily caused again gas heater with water mixing valve interpolation cold water and stops working. Adopting wireless remote control regulating gas water heater temperature, by the restriction of installation site, a lot of occasion remote controller signals are not transferred to gas heater. When adopting remote line traffic control mode, special waterproof wire remote control devices cost is high, it is necessary to sunkens 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 purpose of this utility model is to provide a solution for the hot water temperature of distant control gas heater, namely can the device of regulating gas water heater temperature at a distance.

To achieve these goals, this utility model provides a kind of gas heater hot water temperature's long range regulation apparatus, is made up of first flow measuring unit, second flow measuring unit, adder circuit unit, ratio value computing unit, flow threshold switch element and proportioning valve driver element.

Described gas heater has cold water inlet and the first hot water outlet, the second hot water outlet; Before described first hot water outlet, first flow sensor is installed, for detecting outlet hot water's flow of the first hot water outlet; Before described second hot water outlet, second flow sensor is installed, for detecting outlet hot water's flow of the second hot water outlet.

Described first flow measuring unit is made up of first flow sensor and first frequency voltage conversion circuit, is provided with first flow voltage output end; Described second flow measuring unit is made up of second flow sensor and second frequency voltage conversion circuit, is provided with second flow voltage output end.

Described adder circuit unit is provided with total flow voltage output end; Two inputs of described adder circuit unit are respectively connecting to first flow voltage output end, second flow voltage output end.

Described ratio value computing unit is analog divider circuit, is provided with molecule voltage input end, denominator voltage input end and ratio value and controls voltage output end;Described molecule voltage input end is connected to first flow voltage output end; Described denominator voltage input end is connected to total flow voltage output end.

Described flow threshold switch element by flow threshold initialization circuit, compare drive circuit, relay burnt gas switch forms; Described flow threshold initialization circuit is provided with flow threshold voltage output end; The described drive circuit that compares is made up of comparator and relay coil drive circuit; Two inputs of described comparator are respectively connecting to total flow voltage output end, flow threshold voltage output end; Described relay burnt gas switch is driven by relay coil drive circuit.

Described proportioning valve driver element is made up of gas proportion regulating valve and proportioning valve drive circuit; The input of described proportioning valve drive circuit is connected to ratio value and controls voltage output end; The aperture of described gas proportion regulating valve is driven by proportioning valve drive circuit.

First hot water outlet of described gas heater, the second hot water outlet are connected to 2 water inlets of water mixing valve respectively by water pipe. Or, the first hot water outlet of described gas heater, the second hot water outlet are connected to the water inlet of the first adjustment valve, the second adjustment valve respectively by water pipe; Described first adjustment valve, the second outlet connection regulating valve are a water side.

The control system of described gas heater is made up of described device, controller, ignition discharge pin, flame inductive needle, exhaust fan, electromagnetic valve; Gas proportion regulating valve in described device is arranged in fuel gas pipeline after electromagnetic valve. Or, the control system of described gas heater is made up of temperature controller, ignition discharge pin, flame inductive needle, exhaust fan, electromagnetic valve, gas proportion regulating valve, first flow sensor, second flow sensor; Control circuit in described device includes in temperature controller; Control circuit in described device includes the related circuit in first flow measuring unit, second flow measuring unit, adder circuit unit, ratio value computing unit, flow threshold switch element and proportioning valve driver element.

Described electromagnetic valve is preferably used the safety shutoff valve in gas proportion valve assembly; Described gas proportion regulating valve uses the gas proportion regulating valve in gas proportion valve assembly.

The beneficial effects of the utility model are, without wired or Digiplex, adopt the method change gas flow being controlled two-way hot water flow by water valve, thus changing outlet hot water's temperature of water heater, realize the remote adjustment of gas heater hot water temperature, control result reliable and stable.

Accompanying drawing explanation

Fig. 1 is gas heater hot water temperature's long range regulation apparatus theory diagram.

Fig. 2 is that embodiment 1 structured flowchart installed by flow transducer.

Fig. 3 is that embodiment 2 structured flowchart installed by flow transducer.

Fig. 4 is the embodiment of first flow measuring unit 100.

Fig. 5 is the embodiment of adder circuit unit 300.

Fig. 6 is the embodiment of ratio value computing unit 400.

Fig. 7 is the embodiment of flow threshold switch element 500.

Fig. 8 is the embodiment of proportioning valve drive circuit in proportioning valve driver element 600.

Fig. 9 is gas heater classical control system block diagram.

Figure 10 is the gas water heater control system block diagram with temperature remote adjustment function.

Detailed description of the invention

Below in conjunction with embodiment and accompanying drawing, this utility model is described in further detail, but embodiment of the present utility model is not limited to this.

Gas heater hot water temperature's long range regulation apparatus theory diagram is as it is shown in figure 1, be made up of first flow measuring unit 100, second flow measuring unit 200, adder circuit unit 300, ratio value computing unit 400, flow threshold switch element 500 and proportioning valve driver element 600.

Described gas heater has 1 cold water inlet and 2 hot water outlets, is separately installed with flow transducer at 2 hot water outlets, detects outlet hot water's flow of 2 hot water outlets respectively. First flow measuring unit 100 is provided with first flow voltage U1 outfan, second flow measuring unit 200 is provided with second flow voltage U2 outfan, first flow measuring unit 100, second flow measuring unit 200 measure outlet hot water flow Q1, Q2 of 2 hot water outlets respectively, and export with first flow voltage U1, second flow voltage U2 respectively. U1, U2 are sent to adder circuit unit 300, ask for the total flow voltage U0 corresponding with entrance cold water total flow Q0; Entrance cold water total flow Q0 is equal to outlet hot water's flow Q1, Q2 sum of 2 hot water outlets. Total flow voltage U0 is sent to flow threshold switch element 500 and compares with the flow threshold voltage set, and when entrance cold water total flow Q0 is more than the flow threshold set, controls relay burnt gas switch Guan Bi; When entrance cold water total flow Q0 is less than the flow threshold set, controls relay burnt gas switch and disconnect.

First flow voltage U1, total flow voltage U0 are sent to ratio value computing unit 400, and ratio value computing unit 400 calculates the ratio between first flow voltage U1 and total flow voltage U0, this ratio obtain ratio value and control voltage UK; Ratio value controls voltage UK and is sent to proportioning valve driver element 600, UK size control the aperture of gas proportion regulating valve; When UK is minima, the aperture of gas proportion regulating valve is minimum; When UK is maximum, the aperture of gas proportion regulating valve is maximum.

Flow transducer installs embodiment 1 structured flowchart as shown in Figure 2, described device water circuit system is by the heat exchanger 901 in described gas heater, first flow sensor 902, second flow sensor the 903, first hot water outlet the 904, second hot water outlet 905, cold water inlet 906, cold water pipe 921, main hot-water line the 922, first hot-water line the 923, second hot-water line 924, and water mixing valve the 931, first connecting water pipe the 925, second connecting water pipe 926 outside gas heater, heat of mixing water pipe 927, Water outlet spray head 932 form.

Described gas heater has 1 cold water inlet and 2 hot water outlets, and cold water pipe 921 is connected between cold water inlet 906 and heat exchanger 901; One end of first hot-water line 923 is connected to the first hot water outlet 904, and other end is communicated to main hot-water line 922 water side; One end of second hot-water line 924 is connected to the second hot water outlet 905, and other end is communicated to main hot-water line 922 water side; The water intake end of main hot-water line 922 is connected to heat exchanger 901.

Before described first flow sensor 902 is arranged on the first hot water outlet 904, for detecting the outlet hot water flow Q1 of the first hot water outlet 904; Before described second flow sensor 903 is arranged on the second hot water outlet 905, for detecting the outlet hot water flow Q2 of the second hot water outlet 905. Specifically, first flow sensor 902 is arranged on the first hot-water line 923, and second flow sensor 903 is arranged on the second hot-water line 924.

2 water inlets of water mixing valve 931 are connected to first hot water outlet the 904, second hot water outlet 905 of gas heater respectively by first connecting water pipe the 925, second connecting water pipe 926; The outlet of water mixing valve 931 is connected to Water outlet spray head 932 by heat of mixing water pipe 927. When water mixing valve 931 is cold water, hot water water mixing valve, the first connecting water pipe 925 is connected to the water inlet of hot water of water mixing valve 931, and the second connecting water pipe 926 is connected to the cold water inlet of water mixing valve 931. Outlet hot water flow Q1, Q2 of first hot water outlet the 904, second hot water outlet 905 are changed by regulating mixed water valve 931.

Flow transducer installs embodiment 2 structured flowchart as it is shown on figure 3, be different in that with embodiment 1, uses the first adjustment valve 933, second to regulate valve 934 and replaces water mixing valve 931; First water inlet regulating valve 933 is connected to the first hot water outlet 904 of gas heater through the first connecting water pipe 925, and the second water inlet regulating valve 934 is connected to the second hot water outlet 905 of gas heater through the second connecting water pipe 926. The first outlet connection regulating valve the 933, second adjustment valve 934 is that a water side is connected with heat of mixing water pipe 927. Outlet hot water flow Q1, Q2 of first hot water outlet the 904, second hot water outlet 905 changes respectively through regulating first adjustment valve the 933, second adjustment valve 934.

The embodiment of first flow measuring unit 100 as shown in Figure 4, is provided with first flow voltage output end. First flow sensor 902 selects the Hall water flow sensor of low cost, and sensor is output as the pulse frequency proportional to flow. First flow measuring unit 100 is made up of first flow sensor 902 and frequency-voltage conversion circuit. In embodiment illustrated in fig. 4, frequency-voltage conversion circuit is made up of single-chip integration frequency/voltage converter 101 and its peripheral cell resistance 102, resistance 104, resistance 106, electric capacity 103, electric capacity 105, the model of single-chip integration frequency/voltage converter 101 is LM2917, the pin 10 of LM2917 is first flow voltage output end, exports first flow voltage U1. Frequency-voltage conversion circuit can also adopt other to be capable of the circuit of frequency/voltage translation function.

Second flow measuring unit 200 is made up of second flow sensor 903 and frequency-voltage conversion circuit, second flow sensor 903 selects the Hall water flow sensor of low cost, the principle of its frequency-voltage conversion circuit is identical with the frequency-voltage conversion circuit in first flow measuring unit 100 with structure, it is provided with second flow voltage output end, exports second flow voltage U2.

First flow measuring unit 100, second flow measuring unit 200 can also adopt other measurement scheme, for instance, the flow transmitter being respectively adopted integration measures Q1, Q2, and the flow transmitter of integration directly exports U1, U2.

First flow measuring unit 100 detects Q1, and output is proportional relationship between U1, U1 and Q1

;

Second flow measuring unit 200 detects Q2, and output is proportional relationship between U2, U2 and Q2

;

KQ in 2 expression formulas is flow measurement coefficient above. First flow measuring unit 100 is identical with the flow measurement coefficient of second flow measuring unit 200.

Adder circuit unit 300 is provided with total flow voltage output end, two input is respectively connecting to first flow voltage output end, second flow voltage output end, input first flow voltage U1, second flow voltage U2, output total flow voltage U0, U0 are U1, U2 sum.Adder circuit unit 300 can adopt any voltage adder circuit, and one of them embodiment is as shown in Figure 5. Adder circuit unit 300 shown in Fig. 5 is the in-phase adder being made up of amplifier 301, resistance 302, resistance 303, resistance 304, resistance 305. Owing to first flow measuring unit 100 is identical with the flow measurement coefficient of second flow measuring unit 200, the ratio between the outlet hot water total flow Q0 of total flow voltage U0 and 2 hot water outlet is also identical, is namely all flow measurement coefficient. The outlet hot water total flow Q0 of 2 hot water outlets is entrance cold water total flow Q0.

Ratio value computing unit 400 is provided with molecule voltage input end, denominator voltage input end and ratio value and controls voltage output end. Described molecule voltage input end is connected to first flow voltage output end, inputs first flow voltage U1; Described denominator voltage input end is connected to total flow voltage output end, inputs total flow voltage U0. Ratio value computing unit 400 is output as ratio value and controls voltage UK, and embodiment as shown in Figure 6, is made up of parallel A/D converter 401, parallel D/A converter 402,555 part on time base apparatus 411, resistance 412, resistance 413, electric capacity 414.

The model of parallel A/D converter 401 is 8 parallel-by-bit A/D converter ADC0841. 555 time base apparatus part 411, resistance 412, resistance 413, electric capacity 414 form agitator, the recurrent pulse of agitator output is connected to the startup conversion inputs WR of parallel A/D converter 401, each pulse starts an A/D conversion, makes parallel A/D converter 401 be operated in Automatic continuous translative mode.

The analog voltage input negative terminal VIN-of ADC0841, output Enable Pin RD, chip select end CS, digitally DGND, simulation ground AGND are connected to publicly, and the power end VCC of ADC0841 is connected to positive supply+VDD. During the output Enable Pin RD input low level of ADC0841, its data output end DB7～DB0 maintains output effectively. When, after ADC0841 each time EOC, automatically result being exported from data output end DB7～DB0.

U1 is connected to analog voltage input VIN+, the U0 of ADC0841 and is connected to the reference voltage input terminal VREF of ADC0841. If 8 position digital signals of ADC0841 outfan DB7～DB0 output are X, its maximum is 255. Then have

;

Namely the ratio between two input voltages U1, U0 is

。

The model of parallel D/A converter 402 is 8 parallel-by-bit D/A converter AD5330. The parallel data input of AD5330 is DB7～DB0, and reference voltage input is VREF, changes voltage output end into VOUT.

The buffer switch of AD5330 controls end BUF, export ratio controls end GAIN, input register controls end WR, DAC register controlled end LDAC, chip select end CS, hold GND to be connected to publicly, the clear terminal CLR of AD5330, low power consumption control end PD, power end VDD are connected to positive supply+VDD. When the input register of AD5330 controls end WR and DAC register controlled end LDAC input low level, it is in direct D/A transition status, when being left out transfer lag, conversion voltage output end VOUT reflects the data transformation result of parallel data input DB7～DB0 in real time.

The parallel data input DB7～DB0 of AD5330 is connected to the parallel data outfan DB7～DB0 of ADC0841, and the data of input are X, and its maximum is 255. If input is UM to the voltage of AD5330 reference voltage input VREF, the voltage changing voltage output end VOUT output is UK, then have

;

Considering the input/output relation of AD0841, ratio value computing unit 400 is according to formula

According to the ratio between first flow voltage U1 and total flow voltage U0, calculate and obtain ratio value control voltage UK. UM is the maximum that ratio value controls voltage UK, and in embodiment illustrated in fig. 6, UM is connected to positive supply+VDD. UM can also adopt other magnitudes of voltage to control the maximum of voltage UK to control ratio value.

It is not high that embodiment illustrated in fig. 6 is applicable to comparative example value calculating rate request, and the occasion that input voltage change is shallower. Due in this utility model U1, U0 reflection be water heater flow, change is mild, therefore is suitable for. Ratio value computing unit 400 can also adopt other analog dividers, analog multiplier circuit, for instance, use the integrated analog multipliers such as AD734, AD534/analog divider of divider composition, analog multiplier circuit.

Flow threshold switch element 500 inputs total flow voltage U0, exports the switching signal relevant to flow threshold QY. The embodiment of flow threshold switch element 500 is as shown in Figure 7, being made up of comparator 501, resistance 502, resistance 503, resistance 504, audion 505, fly-wheel diode 506, relay coil 507, relay burnt gas switch 508, the switching signal relevant to flow threshold QY is Guan Bi and the disconnection of relay burnt gas switch 508.

In embodiment illustrated in fig. 7, the bleeder circuit of resistance 502, resistance 503 composition is flow threshold QY initialization circuit, is provided with flow threshold voltage output end, the flow threshold voltage UY that output sets; Change the intrinsic standoff ratio of resistance 502, resistance 503, it is possible to change the flow threshold QY set. The relation of flow threshold voltage UY and flow threshold QY is

。

Comparator 501, resistance 504, audion 505, fly-wheel diode 506, relay coil 507 form the comparison drive circuit of relay burnt gas switch 508.

When entrance cold water total flow Q0 is more than flow threshold QY, total flow voltage U0 is more than flow threshold voltage UY, and comparator 501 exports high level, and audion 505 turns on, and relay coil 507 obtains electric, and relay burnt gas switch 508 closes; When entrance cold water total flow Q0 is less than flow threshold QY, relay burnt gas switch 508 disconnects.

Proportioning valve driver element 600 is made up of gas proportion regulating valve and proportioning valve drive circuit, and the input of proportioning valve drive circuit is connected to ratio value and controls voltage output end, and the aperture of gas proportion regulating valve is driven by proportioning valve drive circuit.

The embodiment of proportioning valve drive circuit as shown in Figure 8, is made up of power amplifier 601, resistance 602, resistance 603, fly-wheel diode 604. Fly-wheel diode 604 is connected in parallel on ratio coil 630. Its operation principle is: could alter that the flow of combustion gas by changing the aperture of gas proportion regulating valve, thus changing the combustion power of gas heater, changes hot water temperature. Specifically have: when ratio value controls voltage UK increase, proportioning valve drive circuit output voltage UB increases, and on ratio coil 630, electric current increases, and the aperture of gas proportion regulating valve increases, and the combustion power of gas heater increases, hot water temperature's rising; When ratio value controls voltage UK reduction, proportioning valve drive circuit output voltage UB reduces, and on ratio coil 630, electric current reduces, and the aperture of gas proportion regulating valve reduces, and the combustion power of gas heater reduces, hot water temperature's decline.

Resistance 602, resistance 603 are for adjusting the scope of proportioning valve drive circuit output voltage UB, when ratio value controls voltage UK equal to its maximum controlling voltage UM, ratio coil 630 flows through maximum controlling current, i.e. rated current, make the aperture of gas proportion regulating valve reach maximum.

Proportioning valve drive circuit can use other kinds of drive circuit, for instance, audion power driving circuit, voltage/PWM changes and PWM drive circuit, etc. The function of proportioning valve drive circuit is: when ratio value controls voltage UK increase, controls electric current on ratio coil 630 and increases; When ratio value controls voltage UK reduction, control electric current on ratio coil 630 and reduce; When ratio value control voltage UK is maximum UM, controlling electric current on ratio coil 630 is rated current.

The classical control system block diagram of gas heater is as it is shown in figure 9, be made up of controller 10, water-control switch 11, ignition discharge pin 12, flame inductive needle 13, exhaust fan 14, electromagnetic valve 15. Its operation principle is: after opening water outlet of water heater tap, and water-control switch 11 closes, and controller 10 controls exhaust fan 14 and obtains electric work, controls igniting spray point 12 discharge igniting simultaneously; Slightly postpone a moment and control electromagnetic valve 15 adhesive, turn on the gas-fire; Dimension igniting tens seconds held by ignition discharge pin 12, it is ensured that the reliability of igniting; After electric discharge terminates, flame inductive needle 13 is used to determine whether to light a fire successfully, and controller 10 is sensed by flame inductive needle 13 lights a fire successfully, then control to maintain electromagnetic valve 15 adhesive, turn on the gas-fire; Sensing that igniting is unsuccessful, then control electromagnetic valve 15 and upspring, turn off coal gas, water heater stops heating.

For ensureing the use safety of gas heater, gas heater can also include blast switch 16 as shown in Figure 9 and temperature detect switch (TDS) 17. In water heater use procedure, if blast switch 16 detects that exhaust fan is not actuated, or temperature detect switch (TDS) 17 detects that fire makes too greatly leaving water temperature too high, or water-control switch 11 detects when current are too little, capital makes electromagnetic valve 15 upspring, and turns off coal gas, it is to avoid cause security incident.

When gas heater uses device described in the utility model, its control system is made up of the controller 10 of described device and system shown in Figure 9, ignition discharge pin 12, flame inductive needle 13, exhaust fan 14, electromagnetic valve 15, or can also include blast switch 16, temperature detect switch (TDS) 17 by selectivity. Water-control switch 11 in gas heater classical control system shown in Fig. 9 is substituted by the relay burnt gas switch 508 in device described in the utility model, after the gas proportion regulating valve in device described in the utility model is arranged in fuel gas pipeline electromagnetic valve 15. Owing to conventional gas proportion valve assembly having generally included gas proportion regulating valve and safety shutoff valve, therefore, electromagnetic valve 15 in gas heater classical control system shown in Fig. 9 is preferably used the safety shutoff valve in gas proportion valve assembly, and gas proportion regulating valve uses the gas proportion regulating valve in gas proportion valve assembly.

When gas heater uses device of the present invention, described controller 10 can use current various popular gas water heater ignition controller, such as, DKG2 controller, DKG3 controller, DHS-B7A controller, DHS-B7B controller, HD7PQA1-CP controller, and other gas water heater ignition controllers various.

When gas heater uses device described in the utility model, it is possible to the control circuit in device described in the utility model is merged with described controller 10, forms new temperature controller. It is the gas water heater control system block diagram with temperature remote adjustment function as shown in Figure 10, it is made up of temperature controller 20, ignition discharge pin 12, flame inductive needle 13, exhaust fan 14, electromagnetic valve 15, gas proportion regulating valve 21, first flow sensor 902, second flow sensor 903, or blast switch 16, temperature detect switch (TDS) 17 can also be included by selectivity.Temperature controller 20 is made up of with the control circuit in device described in the utility model the functional circuit in described controller 10, and the control circuit in device described in the utility model includes the related circuit in first flow measuring unit 100, second flow measuring unit 200, adder circuit unit 300, ratio value computing unit 400, flow threshold switch element 500 and proportioning valve driver element 600. Similarly, the electromagnetic valve 15 in Figure 10 is preferably used the safety shutoff valve in gas proportion valve assembly, and gas proportion regulating valve 21 uses the gas proportion regulating valve in gas proportion valve assembly.

The foregoing is only embodiment of the present utility model, be not limited to this utility model, for a person skilled in the art, this utility model can have various modifications and variations. All within spirit of the present utility model and principle, any amendment of making, equivalent replacement, improvement etc., should be included within right of the present utility model.

Claims (9)

1. gas heater hot water temperature's long range regulation apparatus, it is characterised in that:

It is made up of first flow measuring unit, second flow measuring unit, adder circuit unit, ratio value computing unit, flow threshold switch element and proportioning valve driver element;

Described gas heater has cold water inlet and the first hot water outlet, the second hot water outlet; Before described first hot water outlet, first flow sensor is installed, for detecting outlet hot water's flow of the first hot water outlet; Before described second hot water outlet, second flow sensor is installed, for detecting outlet hot water's flow of the second hot water outlet;

Described first flow measuring unit is made up of first flow sensor and first frequency voltage conversion circuit, is provided with first flow voltage output end; Described second flow measuring unit is made up of second flow sensor and second frequency voltage conversion circuit, is provided with second flow voltage output end;

Described adder circuit unit is provided with total flow voltage output end; Two inputs of described adder circuit unit are respectively connecting to first flow voltage output end, second flow voltage output end;

Described ratio value computing unit is analog divider circuit, is provided with molecule voltage input end, denominator voltage input end and ratio value and controls voltage output end; Described molecule voltage input end is connected to first flow voltage output end; Described denominator voltage input end is connected to total flow voltage output end;

Described flow threshold switch element by flow threshold initialization circuit, compare drive circuit, relay burnt gas switch forms; Described flow threshold initialization circuit is provided with flow threshold voltage output end; The described drive circuit that compares is made up of comparator and relay coil drive circuit; Two inputs of described comparator are respectively connecting to total flow voltage output end, flow threshold voltage output end; Described relay burnt gas switch is driven by relay coil drive circuit;

Described proportioning valve driver element is made up of gas proportion regulating valve and proportioning valve drive circuit; The input of described proportioning valve drive circuit is connected to ratio value and controls voltage output end; The aperture of described gas proportion regulating valve is driven by proportioning valve drive circuit.

2. gas heater hot water temperature's long range regulation apparatus as claimed in claim 1, it is characterised in that: the first hot water outlet of described gas heater, the second hot water outlet are connected to 2 water inlets of water mixing valve respectively by water pipe.

3. gas heater hot water temperature's long range regulation apparatus as claimed in claim 1, it is characterised in that: the first hot water outlet of described gas heater, the second hot water outlet are connected to the water inlet of the first adjustment valve, the second adjustment valve respectively by water pipe; Described first adjustment valve, the second outlet connection regulating valve are a water side.

4. gas heater hot water temperature's long range regulation apparatus as claimed in claim 1, it is characterised in that: the control system of described gas heater is made up of described device, controller, ignition discharge pin, flame inductive needle, exhaust fan, electromagnetic valve; Gas proportion regulating valve in described device is arranged in fuel gas pipeline after electromagnetic valve.

5. gas heater hot water temperature's long range regulation apparatus as claimed in claim 1, it is characterised in that: the control system of described gas heater is made up of temperature controller, ignition discharge pin, flame inductive needle, exhaust fan, electromagnetic valve, gas proportion regulating valve, first flow sensor, second flow sensor; Control circuit in described device includes in temperature controller; Control circuit in described device includes the related circuit in first flow measuring unit, second flow measuring unit, adder circuit unit, ratio value computing unit, flow threshold switch element and proportioning valve driver element.

6. the gas heater hot water temperature's long range regulation apparatus as described in claim 4 or claim 5, it is characterised in that: described electromagnetic valve is preferably used the safety shutoff valve in gas proportion valve assembly; Described gas proportion regulating valve uses the gas proportion regulating valve in gas proportion valve assembly.

7. gas heater hot water temperature's long range regulation apparatus as claimed in claim 1, it is characterised in that: described ratio value computing unit by parallel A/D converter, parallel D/A converter, 555 time base apparatus part, the first resistance (412), the second resistance (413), electric capacity (414) forms.

8. gas heater hot water temperature's long range regulation apparatus as claimed in claim 1, it is characterised in that: described flow threshold switch element is made up of comparator, the 3rd resistance (502), the 4th resistance (503), the 5th resistance (504), audion (505), the first fly-wheel diode (506), relay coil, relay burnt gas switch.

9. gas heater hot water temperature's long range regulation apparatus as claimed in claim 1, it is characterised in that: described proportioning valve drive circuit is made up of power amplifier, the 6th resistance (602), the 7th resistance (603), the second fly-wheel diode (604).