CN101776295A - Method and system for controlling temperature of furnace and furnace - Google Patents

Abstract

The invention is applicable to the field of furnaces, providing a method and a system for controlling the temperature of a furnace and a furnace. The method comprises the following steps: acquiring the current temperature of the furnace; capturing the target temperature required by users; and automatically regulating the output power of the heating wire according to the difference of the current temperature of the furnace and the target temperature. In the embodiment of the invention, the output power of the heating wire can be automatically regulated according to the difference of the current temperature of the furnace and the target temperature. Therefore, the problem that greater rangeability of the temperature is to bring uncomfortableness to users when the temperature of the existing furnace is controlled by the mode of opening and closing is solved.

Description

A kind of fireplace temperature-controlled process, system and fireplace

Technical field

The invention belongs to the fireplace field, relate in particular to a kind of fireplace temperature-controlled process, system and fireplace.

Background technology

Fireplace is used for western countries originally, and decoration function and practical value are arranged.According to the culture of country variant, the type of fireplace roughly comprises: American fireplace, English fireplace, French fireplace etc., its moulding is therefore different.Fireplace basic structure comprises: mantel pick-up and fireplace core.Wherein, mantel pick-up is mainly and decorates and fixation.And according to the material difference, mantel pick-up can be divided into: marble hearth frame, wooden mantel pick-up, parian mantel pick-up (resin), pile up mantel pick-up.And according to the fuel difference of fireplace core, fireplace can be categorized as: electric fireplace, real flame fireplace (combustion carbon, firebrand, combustion gas).The atmosphere that real flame fireplace is built is more outstanding, but generally need chimney or flue dust and smog are discharged outdoor, so be fit to villa and the installation of top layer apartment; The electricity fireplace is fit to various house types, and its advantage is simple and convenient, and shortcoming is true to nature inadequately.

Real flame fireplace will have the support of architectural design, needs chimney, burner hearth.Burner hearth can be a cast iron fireplace core, also can be that refractory brick is piled up.In western countries the flue design is arranged generally.So western countries also generally adopt real flame fireplace.And electric fireplace is installed simply, and the collocation mantel pick-up is not had the house type of flue design to adopt by domestic.And owing to domesticly generally adopt central heating, and therefore, the electric fireplace of domestic more employing.

Traditional electric fireplace is generally by controlling the temperature of fireplace to the open and close of fireplace.Adopt this temperature control mode, make the temperature instability easily, thereby can bring discomfort to the user.

Summary of the invention

The purpose of the embodiment of the invention is to provide a kind of fireplace temperature-controlled process, and when being intended to solve existing fireplace and controlling the fireplace temperature by the mode of opening, turn-offing, range of temperature is bigger, can bring the problem of discomfort to the user.

The embodiment of the invention is achieved in that a kind of fireplace temperature-controlled process, said method comprising the steps of:

Obtain current fireplace temperature;

Catch the target temperature that the user needs;

According to the difference of current fireplace temperature and described target temperature, adjust the power output of heating wire automatically.

Further, described difference according to current fireplace temperature and described target temperature, the step of adjusting the power of heating wire automatically comprises:

A, every t1 blanking time, calculate the difference DELTA T of current fireplace temperature and described target temperature, when described 0＜Δ T＜M,, adjust the power output P1 of heating wire by direct proportion according to the variation of Δ T, when described Δ T＜=0, heating wire is turn-offed in control; And/or

B, every t2 blanking time, calculate the difference DELTA T of current fireplace temperature and described target temperature, when described 0＜Δ T＜N,, press the power output that integral algorithm is adjusted heating wire according to the variation of Δ T,

Described t1, t2, M, N are fixed value or the constant set for the user, and described t1 is greater than described t2.

Further, the computing formula of the P1 of power output described in the steps A is:

When 0＜Δ T＜M, P1=(Δ T*P/M) * 100%;

When Δ T＞M, P1=P*100%;

When Δ T＜0, P1=P*0,

Described P is the maximum service rating of heating wire, described Δ T=target temperature-Current Temperatures.

Further, the integral algorithm among the described step B is:

∫₀^{T '}(T-T₀)_Dt, described T ' is fixed value or the constant set for the user.Further, described method also comprises:

Receive the change directive of user to target temperature.

Another purpose of the embodiment of the invention is to provide a kind of fireplace temperature control system, and described system comprises:

The Current Temperatures acquiring unit is used to obtain current fireplace temperature;

The target temperature capture unit is used to catch the target temperature of user's needs; And

Power adjustment unit is used for the difference according to current fireplace temperature and described target temperature, adjusts the power output of heating wire automatically.

Further, described power adjustment unit specifically comprises:

Ratio is calculated adjusting module, is used for calculating the difference DELTA T of current fireplace temperature and described target temperature every t1 blanking time, when described 0＜Δ T＜M,, adjust the power output P1 of heating wire by direct proportion according to the variation of Δ T, when described Δ T＜=0, heating wire is turn-offed in control; And/or

The integral and calculating adjusting module is used for calculating the difference DELTA T of current fireplace temperature and described target temperature every t2 blanking time, when described 0＜Δ T＜N, according to the variation of Δ T, presses the power output that integral algorithm is adjusted heating wire.

Further, the computing formula of described power output P1 is:

When 0＜Δ T＜M, P1=(Δ T*P/M) * 100%;

When Δ T＞M, P1=P*100%;

When Δ T＜0, P1=P*0,

Described P is the maximum service rating of heating wire, described Δ T=target temperature-Current Temperatures.

Further, the computing formula of described integral algorithm is:

∫₀^{T '}(T-T₀)_Dt, described T ' is fixed value or the constant set for the user.

Another purpose of the embodiment of the invention is to provide a kind of fireplace that adopts above-mentioned each described fireplace temperature control system.

In an embodiment of the present invention, according to the difference of current fireplace temperature and target temperature, automatic dynamic is adjusted the power output of heating wire.Like this, when controlling the fireplace temperature with regard to solving existing fireplace by the mode of opening, turn-offing, range of temperature is bigger, can bring the problem of discomfort to the user.

Description of drawings

Fig. 1 is the implementing procedure figure of the fireplace temperature-controlled process that provides of the embodiment of the invention;

Fig. 2 is the structural representation of the fireplace temperature control system that provides of the embodiment of the invention.

The specific embodiment

In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.

Fig. 1 shows the implementing procedure of the fireplace temperature-controlled process that the embodiment of the invention provides, and details are as follows:

In step S101, obtain current fireplace temperature.

In step S102, catch the target temperature that the user needs.

In step S103,, adjust the power output of heating wire automatically according to the difference of current fireplace temperature and described target temperature.

As embodiments of the invention, the power output that should adjust heating wire automatically can comprise: every t1 blanking time, calculate the difference DELTA T of current fireplace temperature and described target temperature, when described 0＜Δ T＜M, variation according to Δ T, adjust the power output P1 of heating wire by direct proportion, when described Δ T＜=0, heating wire is turn-offed in control.

Wherein, the computing formula of power output P1 is: when 0＜Δ T＜M, and P1=(Δ T*P/M) * 100%; When Δ T＞M, P1=P*100%; When Δ T＜0, P1=P*0, described P are the maximum service rating of heating wire, described Δ T=target temperature-Current Temperatures.

As embodiments of the invention, the power output that should automatically adjust heating wire can comprise: every t2 blanking time, calculate the difference DELTA T of current fireplace temperature and described target temperature, when described 0＜Δ T＜N, according to the variation of Δ T, press the power output that integral algorithm is adjusted heating wire.

Wherein, the computing formula of integral algorithm is: ∫₀^{T '}(T-T₀)_Dt, described T ' is fixed value or the constant set for the user.

Above-mentioned two schemes can only adopt one of them, also can two uses simultaneously.Above-mentioned t1, t2, M, N are fixed value or the value set for the user, and described t1 is greater than described t2.

In step S104, receive the change directive of user to target temperature.

Fig. 2 shows the structure of the fireplace temperature control system that the embodiment of the invention provides, and this fireplace temperature control system can be software unit or hardware cell or the unit soft, that scleroma is closed that is built in fireplace.

This fireplace temperature control system comprises: CurrentTemperatures acquiring unit 21, targettemperature capture unit 22, power adjustment unit 23.This currenttemperature acquiring unit 21 obtains current fireplace temperature, and targettemperature capture unit 22 is caught the target temperature that the user needs, andpower adjustment unit 23 is adjusted the power output of heating wire automatically according to the difference of current fireplace temperature and described target temperature.

As embodiments of the invention, thispower adjustment unit 23 specifically comprises: ratio is calculated adjustingmodule 231 and/or integral and calculatingadjusting module 232.

This ratio is calculatedadjusting module 231 every t1 blanking time, calculates the difference DELTA T of current fireplace temperature and described target temperature, when described 0＜Δ T＜M, variation according to Δ T, adjust the power output P1 of heating wire by direct proportion, when described Δ T＜=0, heating wire is turn-offed in control.

As preferred embodiment, the computing formula of power output P1 is: when 0＜Δ T＜M, and P1=(Δ T*P/M) * 100%; When Δ T＞M, P1=P*100%; When Δ T＜0, P1=P*0, described P are the maximum service rating of heating wire, described Δ T=target temperature-Current Temperatures.This integral and calculatingadjusting module 232 calculates the difference DELTA T of current fireplace temperature and described target temperature every t2 blanking time, when described 0＜Δ T＜N, according to the variation of Δ T, presses the power output that integral algorithm is adjusted heating wire.Further, the computing formula of described integral algorithm is: ∫₀^{T '}(T-T₀)_Dt, described T ' is fixed value or the constant set for the user.

As embodiments of the invention, adjust heating wire heating power method can for: adopt MCU to send instruction to two relays, two relays are by controlling the heating power of controlling heating wire separately switch time.

In sum, in an embodiment of the present invention, according to the difference of current fireplace temperature and target temperature, automatic dynamic is adjusted the power output of heating wire.Like this, when controlling the fireplace temperature with regard to solving existing fireplace by the mode of opening, turn-offing, range of temperature is bigger, can bring the problem of discomfort to the user.

The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. a fireplace temperature-controlled process is characterized in that, said method comprising the steps of:

Obtain current fireplace temperature;

Catch the target temperature that the user needs;

According to the difference of current fireplace temperature and described target temperature, adjust the power output of heating wire automatically.

2. fireplace temperature-controlled process according to claim 1 is characterized in that, described difference according to current fireplace temperature and described target temperature, and the step of adjusting the power of heating wire automatically comprises:

A, every t1 blanking time, calculate the difference DELTA T of current fireplace temperature and described target temperature, when described 0＜Δ T＜M,, adjust the power output P1 of heating wire by direct proportion according to the variation of Δ T, when described Δ T＜=0, heating wire is turn-offed in control; And/or

B, every t2 blanking time, calculate the difference DELTA T of current fireplace temperature and described target temperature, when described 0＜Δ T＜N,, press the power output that integral algorithm is adjusted heating wire according to the variation of Δ T;

Described t1, t2, M, N are fixed value or the constant set for the user, and described t1 is greater than described t2.

3. fireplace temperature-controlled process according to claim 2 is characterized in that, the computing formula of the P1 of power output described in the steps A is:

When 0＜Δ T＜M, P1=(Δ T*P/M) * 100%;

When Δ T＞M, P1=P*100%;

When Δ T＜0, P1=P*0,

Described P is the maximum service rating of heating wire, described Δ T=target temperature-Current Temperatures.

4. method according to claim 2 is characterized in that, the integral algorithm among the described step B is:

∫₀^{T '}(T-T₀) dt, described T ' is fixed value or the constant set for the user.

5. method according to claim 1 is characterized in that, described method also comprises:

Receive the change directive of user to target temperature.

6. a fireplace temperature control system is characterized in that, described system comprises:

The Current Temperatures acquiring unit is used to obtain current fireplace temperature;

The target temperature capture unit is used to catch the target temperature of user's needs; And

Power adjustment unit is used for the difference according to current fireplace temperature and described target temperature, adjusts the power output of heating wire automatically.

7. fireplace temperature control system according to claim 6 is characterized in that, described power adjustment unit specifically comprises:

Ratio is calculated adjusting module, is used for calculating the difference DELTA T of current fireplace temperature and described target temperature every t1 blanking time, when described 0＜Δ T＜M,, adjust the power output P1 of heating wire by direct proportion according to the variation of Δ T, when described Δ T＜=0, heating wire is turn-offed in control; And/or

The integral and calculating adjusting module is used for calculating the difference DELTA T of current fireplace temperature and described target temperature every t2 blanking time, when described 0＜Δ T＜N, according to the variation of Δ T, presses the power output that integral algorithm is adjusted heating wire.

8. fireplace temperature control system according to claim 6 is characterized in that, the computing formula of described power output P1 is:

When 0＜Δ T＜M, P1=(Δ T*P/M) * 100%;

When Δ T＞M, P1=P*100%;

When Δ T＜0, P1=P*0,

Described P is the maximum service rating of heating wire, described Δ T=target temperature-Current Temperatures.

9. fireplace temperature control system according to claim 6 is characterized in that, the computing formula of described integral algorithm is:

∫₀^{T '}(T-T₀) dt, described T ' is fixed value or the constant set for the user.

10. fireplace that adopts each described fireplace temperature control system of claim 6-9.

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