Self-adaptive energy-saving control system for fireplace equipment

Abstract

The invention discloses a self-adaptive energy-saving control system for fireplace equipment, which relates to the field of self-adaptive energy-saving control and comprises a data acquisition module, a wood module, an equipment module, an indoor module and a control module. By analyzing the physical structure, chemical composition, combustion characteristics, external environment and wood decay characteristics of wood, the overall combustion efficiency of the wood is judged to obtain the comprehensive combustion level value of the wood, fireplace equipment information is received, material microcosmic, glass reflection and refraction and surface color roughness of fireplace equipment are analyzed and judged, and the comprehensive combustion level value of the wood is obtained. Analyzing indoor personnel behavior characteristics and solar radiation to obtain indoor temperature required values corresponding to monitoring time, calculating to obtain the required opening degree of a fuel regulating valve of the fireplace equipment, and comparing the required opening degree of the fuel regulating valve of the fireplace equipment with the fuel regulating valve with the existing opening degree to obtain the required opening degree of the fuel regulating valve of the fireplace equipment. The opening degree of the fuel regulating valve is controlled, and energy can be saved.

Description

Technical Field

[0001] The invention relates to the field of adaptive energy-saving control, in particular to an adaptive energy-saving control system for fireplace equipment. Background Art

[0002] With the increasing shortage of energy resources and the continuous growth of global energy demand, the energy crisis has become an important problem that the world needs to solve. Fireplaces are a common heating device in winter and are widely used in many places and homes. Therefore, the energy-saving control of fireplace equipment plays a positive role in alleviating the energy crisis. Traditional fireplace equipment energy-saving control is too dependent on manual labor and cannot accurately control the fireplace equipment according to different states. The adaptive energy-saving control system of fireplace equipment came into being.

[0003] At the same time, wood is widely used as a fuel supply for fireplace equipment due to its convenience, low cost, and renewable nature. However, the adaptive energy-saving control system of traditional fireplace equipment cannot accurately monitor the different states of wood fuel during operation, nor can it take into account the performance parameters of the fireplace equipment itself, let alone monitor changes in the indoor environment in real time, resulting in the inability to accurately control the opening of the fuel regulating valve, which greatly causes energy waste and cannot meet users' high requirements for convenience and comfort.

[0004] In order to solve the above defects, a technical solution is now provided. Summary of the invention

[0005] In order to solve the technical problems raised by the above background technology, the present invention is proposed. An embodiment of the present invention provides an adaptive energy-saving control system for a fireplace device.

[0006] The purpose of the present invention can be achieved through the following technical solution: an adaptive energy-saving control system for fireplace equipment, comprising a data acquisition module, a wood module, an equipment module, an indoor module and a control module.

[0007] The data acquisition module is used to collect wood information, equipment information, and indoor information, and send it to the wood module, equipment module, and indoor module;

[0008] The wood module analyzes the physical structure, chemical composition, combustion characteristics, external environment and wood decay characteristics of the wood to determine the overall combustion efficiency of the wood and obtain the comprehensive combustion grade value of the wood;

[0009] The device module is used to receive the fireplace device information and analyze and determine the material microstructure, glass reflection and refraction, and surface color roughness of the fireplace device to obtain the thermal radiation characteristic value of the fireplace device;

[0010] The indoor module is used to analyze the behavior characteristics of indoor personnel and solar radiation to obtain the indoor temperature demand value corresponding to each monitoring time;

[0011] The control module is used to receive the comprehensive combustion level value of wood, the thermal radiation value of fireplace equipment, and the indoor temperature demand value, and control the opening of the fuel regulating valve.

[0012] Furthermore, the steps for analyzing the comprehensive combustion grade value of wood are as follows:

[0013] The physical structure energy value, wood active oxygen value, wood combustion specific decomposition value, wood ring temperature and pressure value and wood comprehensive decay state value of wood are normalized. The physical structure energy value of wood is the length of the top side of the trapezoid, the wood active oxygen value is the length of the bottom side of the trapezoid, the sum of the wood combustion specific decomposition value and the wood ring temperature and pressure value is used to establish a trapezoid with the height of the trapezoid as the center point of the equilateral triangle, an equilateral triangle is constructed inside the trapezoid with the center point of the trapezoid as the center point of the equilateral triangle, the comprehensive decay state value of wood is used as the side length of the equilateral triangle, the non-overlapping area formed by the trapezoid and the equilateral triangle is identified, and marked as the wood comprehensive combustion grade value MRJ.

[0014] Furthermore, the steps for analyzing the physical structure and energy value of the wood, the active oxygen value of the wood, the specific combustion value of the wood and the ambient temperature and pressure value of the wood are as follows:

[0015] The physical structure of wood refers to the connected porosity, microstructure value, specific surface area, and acoustic property value of wood, which are added together to obtain the physical structure energy value of wood. The wood microstructure value is the reciprocal value of the crystallinity of wood cellulose. The acoustic property value is the sum of the propagation speed of ultrasonic waves in wood and the main frequency of ultrasonic signals divided by the ultrasonic energy attenuation coefficient to obtain; the chemical composition of wood refers to the density, chemically active group distribution, ash content, and antioxidant content of wood. The sum of the density and chemically active group distribution of wood is divided by the sum of the ash content and the antioxidant content to obtain the wood oxygen value. The chemically active groups of wood refer to the hydroxyl and carbonyl groups in wood; the combustion characteristics of wood refer to the pyrolysis rate, tar yield, coke yield, and combustion activation energy of wood. The pyrolysis rate is divided by the sum of the tar yield, coke yield, and combustion activation energy to obtain the wood combustion characteristic value; the external environment of wood refers to the temperature, humidity, and air pressure of the wood environment. The sum of the temperature and air pressure of the environment is divided by the humidity to obtain the ambient temperature and pressure value of the wood.

[0016] Furthermore, the steps of analyzing the comprehensive decay state value of wood are as follows:

[0017] The cellulose, hemicellulose and lignin contents in the wood cell wall are obtained respectively and summed to obtain the wood group value. The wood surface decay value, wood mycelium impurity value, wood microfibril tangential deviation value and wood group value are marked as bfx, mjs, mwq and mhz respectively, and normalized with the wood microfibril angle repetition value Jp and substituted into the set formula model. Calculation is performed to obtain the wood comprehensive decay state value ZFZ, where ct1, ct2, ct3, ct4, ct5, ct6, ct7, ct8, ct9, ct10, ct11, ct12, ct13, ct14 and ct15 are preset weight factor coefficients, ct1 <ct6<ct11,ct2<ct7<ct12,ct3<ct8<ct13,ct4> ct9>ct14, ct5>ct10>ct15, e is a natural constant.

[0018] Furthermore, the steps for analyzing the wood microfibril angle re-arrangement value and the wood microfibril tangential deviation excess value are as follows:

[0019] The image of wood microfibrils is obtained by atomic force microscopy, and the crossing angles between different fiber bundles in the interwoven microfibrils are counted. The proportion of crossing angles less than 30 degrees or greater than 60 degrees is counted and marked as the crossing complexity rate. The angle between the microfibrils and the wood grain direction in the straight and parallel microfibrils is counted. The proportion of angles greater than 10 degrees is marked as the straight complexity rate. The crossing complexity rate and the straight complexity rate are marked as jf and bf, respectively. According to the set formula Jp=b1×jf+b2×bf, the wood microfibril angle repetition value Jp is obtained, where b2>b1; the wood microfibril image is divided into several path segments , obtain the angle between the starting point and the end point of each path segment, mark it as the tangent direction value of each path segment, arrange the path segments in the order of acquisition, subtract the tangent direction value of the tangent direction value of the previous order from the tangent direction value of the next order and take the absolute value, obtain the path tangent deviation of each segment, and sum them up to obtain the tangent deviation of wood microfibrils, count the number of path tangent deviations greater than 15 degrees in each segment, divide it by the total number of segments, obtain the wood microfibril cutting excess rate, perform weighted calculation on the wood microfibril tangent deviation and the wood microfibril cutting excess rate, and multiply them by the corresponding proportional factor coefficient to obtain the wood microfibril tangent deviation excess value.

[0020] Furthermore, the steps of analyzing the wood mycelium impurity value are as follows:

[0021] Step 1: Obtain wood hyphae images through an optical microscope, take the earliest appearance of hyphae in the wood cell gap as the starting point, measure segment by segment along the growth direction of hyphae, and measure the hyphae diameter of each segment. When it is greater than the set threshold CT1, the hyphae segment is marked as a potential hyphae trunk segment;

[0022] Step 2: Obtain the growth direction vector of each potential mycelium trunk line segment and the direction vector of the adjacent previous mycelium trunk line segment, and obtain the angle value between each segment and the growth direction of the adjacent previous segment through the vector angle formula. When the angle is within the range of ±30 degrees, the mycelium segment is determined to be marked as the mycelium trunk line segment;

[0023] Step 3: Starting from the starting point, continue to track along the potential mycelium trunk line segment until the end of the mycelium, connect all the marked mycelium trunk line segments to obtain a complete mycelium trunk path, mark the mycelium segments with a diameter less than or equal to the set threshold CT1 or the angle between each segment and the growth direction of the adjacent previous segment is not within the range of ±30 degrees as mycelium branch segments, and count the mycelium branch paths, divide the length of the mycelium branch path by the length of the mycelium trunk path to obtain the wood mycelium impurity value.

[0024] Furthermore, the wood surface decay value analysis steps are as follows:

[0025] The wood surface is divided into several areas, and each area is irradiated with ultraviolet light with a wavelength of 365nm. The photoelectric detector device measures the number of photons in each area. If the number of photons in an area is less than 10 3 photons per second, the corresponding area is a healthy decay area on the surface. If the number of photons in the area is greater than or equal to 10 3 Photons per second and less than or equal to 10 5 photons per second, the corresponding area is a slightly decayed area. If the number of photons in the area is greater than 10 5 Photons per second and less than 10 7 photons per second, the corresponding area is a moderately decayed area of ​​the surface. If the number of photons in the area is greater than or equal to 10 7 photons per second, the corresponding area is the surface severely decayed area, and the proportions of the healthy decayed area, the lightly decayed area, the moderately decayed area, and the severely decayed area are counted respectively. The proportions of the lightly decayed area, the moderately decayed area, and the severely decayed area are multiplied by the weight factor coefficients a1, a2, and a3 respectively, and the sum is divided by the proportion of the healthy decayed area to obtain the wood surface decay value, where a1 <a2<a3。

[0026] Furthermore, the control and analysis steps of the opening of the fuel regulating valve are as follows:

[0027] The wood comprehensive combustion grade value MRJ, the fireplace equipment heat radiation value RDZ, and the indoor temperature demand value SWX are normalized and calculated to obtain the required opening SRG of the fuel regulating valve of the fireplace equipment;

[0028] The required opening of the fuel regulating valve of the fireplace equipment is compared with the existing opening of the fuel regulating valve. If the existing opening of the fuel regulating valve is less than the required opening of the fuel regulating valve, the opening of the fuel regulating valve is increased, and the adjusted opening of the regulating valve is equal to the required opening of the fuel regulating valve. If the existing opening of the fuel regulating valve is equal to the required opening of the fuel regulating valve, no adjustment is made. If the existing opening of the fuel regulating valve is greater than the required opening of the fuel regulating valve, the opening of the fuel regulating valve is reduced, and the adjusted opening of the regulating valve is equal to the required opening of the fuel regulating valve.

[0029] Furthermore, the steps for analyzing the thermal radiation characteristic value of the fireplace equipment are as follows:

[0030] Obtain the fireplace equipment material microstructure value, glass red reflection characteristic value, and fireplace equipment surface characteristic value in the fireplace equipment information, mark them as wgt, bhf, and bls, respectively, and perform normalization processing, and substitute them into the set formula RDZ = ζ × (c1 × wgt 2.15 +c2×bhf+c3×e bls ), calculate and obtain the heat radiation characteristic value RDZ of the fireplace equipment, c1, c2 and c3 are the setting influence factor coefficients of the microstructure value of the fireplace equipment material, the glass red reflection characteristic value, and the surface characteristic value of the fireplace equipment, respectively, and ζ is the setting correction factor coefficient.

[0031] Furthermore, the indoor temperature demand value analysis steps are as follows:

[0032] Obtain the behavior characteristics of indoor personnel, specifically sleeping state, lying down to rest, party visit, light physical activity indoors, moderate physical activity indoors, no personnel indoors, and the corresponding temperature demand values ​​are d1, d2, d3, d4, d5 and d6, and d1>d2>d3>d4>d5>d6, marked as the temperature demand value D of the behavior characteristics of indoor personnel; obtain the latitude f of the location of the fireplace equipment, the solar declination Υ, the solar declination is related to the date, obtained according to astronomical data, and the local time angle Φ is obtained by the formula Φ=(dt-12)×15°, dt is the local time, according to the formula tgj=arcsin(sinf×sinΥ+cosf×cosΥ×cosΦ), the solar altitude angle tgj is obtained, according to the formula tf ... cos[(sintgj×sinf-sinΥ) / (costgj×cosf)], get the solar azimuth tfj, and use the formula dtl=e-hd to get the atmospheric transmittance dtl, hd represents the atmospheric optical thickness, and the direct solar radiation intensity If is obtained according to the formula If=Ic×dtl×sintgj, Ic is the solar constant, and the scattered radiation intensity Is is obtained according to the formula Is=λ×Ic×(1-dtl-1 / sintgj)×(1+cosjsj) / 2, jsj refers to the angle between the building surface and the horizontal plane, λ is the sky condition coefficient, and the value of λ is AQI refers to the air quality index. According to the formula TYf = (If + Is) × S × cos (tfj-cjj), the indoor solar radiation heat value TYf is obtained. cjj refers to the angle between the window plane and the south direction, and S is the area of ​​the window.

[0033] The indoor personnel behavior characteristic temperature demand value D is normalized with the indoor solar radiation heat value TYf. The indoor personnel behavior characteristic temperature demand value D is divided by the indoor solar radiation heat value TYf and multiplied by the correction factor coefficient to obtain the indoor temperature demand value SWX.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] 1. The present invention determines the overall combustion efficiency of wood by analyzing the physical structure, chemical composition, combustion characteristics, external environment and wood decay characteristics of wood, and obtains the comprehensive combustion level value of wood. It receives the information of fireplace equipment and analyzes and determines the material microstructure, glass reflection and refraction, and surface color roughness of the fireplace equipment to obtain the thermal radiation characteristic value of the fireplace equipment. It analyzes the behavioral characteristics of indoor personnel and solar radiation to obtain the indoor temperature demand value corresponding to each monitoring time. It can accurately monitor the different states of wood fuel, take into account the performance parameters of the fireplace equipment itself, and monitor the changes in the indoor environment in real time.

[0036] 2. The present invention receives the comprehensive combustion level value of wood, the thermal radiation value of fireplace equipment, and the indoor temperature demand value, and calculates to obtain the required opening of the fuel regulating valve of the fireplace equipment, compares the required opening of the fuel regulating valve of the fireplace equipment with the existing opening fuel regulating valve, and controls the opening of the fuel regulating valve. The opening of the fuel regulating valve can be accurately controlled, which plays a positive role in alleviating the energy crisis and can meet the user's high requirements for convenience and comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. The following drawings are not intentionally scaled to the actual size, and the focus is on illustrating the main purpose of the present invention.

[0038] Figure 1 It is a system block diagram of the present invention. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work also fall within the scope of protection of the present invention.

[0040] like Figure 1 As shown, the adaptive energy-saving control system for fireplace equipment includes a data acquisition module, a wood module, an equipment module, an indoor module and a control module.

[0041] The data acquisition module is used to collect wood information, equipment information, and indoor information, and send it to the wood module, equipment module, and indoor module;

[0042] The wood module analyzes the physical structure, chemical composition, combustion characteristics, external environment and wood decay characteristics of wood to determine the overall combustion efficiency of wood and obtain the comprehensive combustion level value of wood. The specific analysis is as follows:

[0043] The wood surface is divided into several areas, and each area is irradiated with ultraviolet light with a wavelength of 365nm. The photoelectric detector device measures the number of photons in each area. If the number of photons in an area is less than 10 3 photons per second, the corresponding area is a healthy decay area on the surface. If the number of photons in the area is greater than or equal to 10 3 Photons per second and less than or equal to 10 5 photons per second, the corresponding area is a slightly decayed area. If the number of photons in the area is greater than 10 5 Photons per second and less than 10 7 photons per second, the corresponding area is a moderately decayed area of ​​the surface. If the number of photons in the area is greater than or equal to 10 7 photons per second, the corresponding area is the surface severely decayed area, and the proportions of the healthy decayed area, the lightly decayed area, the moderately decayed area, and the severely decayed area are counted respectively. The proportions of the lightly decayed area, the moderately decayed area, and the severely decayed area are multiplied by the weight factor coefficients a1, a2, and a3 respectively, and the sum is divided by the proportion of the healthy decayed area to obtain the wood surface decay value, where a1 <a2<a3;

[0044] Step 1: Obtain wood hyphae images through an optical microscope, take the earliest appearance of hyphae in the wood cell gap as the starting point, measure segment by segment along the growth direction of hyphae, and measure the hyphae diameter of each segment. When it is greater than the set threshold CT1, the hyphae segment is marked as a potential hyphae trunk segment;

[0045] Step 2: Obtain the growth direction vector of each potential mycelium trunk line segment and the direction vector of the adjacent previous mycelium trunk line segment, and obtain the angle value between each segment and the growth direction of the adjacent previous segment through the vector angle formula. When the angle is within the range of ±30 degrees, the mycelium segment is determined to be marked as the mycelium trunk line segment;

[0046] Step 3: Starting from the starting point, continuously track along the potential mycelium trunk line segment until the end of the mycelium, connect all the marked mycelium trunk line segments to obtain a complete mycelium trunk path, mark the mycelium branch line segments whose mycelium diameter is less than or equal to the set threshold CT1 or whose angle value with the growth direction of the adjacent previous segment is not within the range of ±30 degrees, and count the mycelium branch paths, divide the length of the mycelium branch path by the length of the mycelium trunk path, and obtain the wood mycelium impurity value;

[0047] The image of wood microfibrils was obtained by atomic force microscopy, and the cross angles between different fiber bundles in the interwoven microfibrils were counted. The proportion of cross angles less than 30 degrees or greater than 60 degrees was counted and marked as the cross complexity rate. The angle between the microfibrils and the wood grain direction in the straight and parallel microfibrils was counted. The proportion of angles greater than 10 degrees was marked as the straight complexity rate. The cross complexity rate and the straight complexity rate were marked as jf and bf, respectively. According to the set formula Jp=b1×jf+b2×bf, the wood microfibril angle re-arrangement value Jp was obtained, where b2>b1. It should be noted that when the straight and parallel microfibrils are angle-deviated, it is easier for microorganisms to invade the wood along the direction of the microfibrils. Cause wood decay; Divide the wood microfibril image into several path segments, obtain the angle between the starting point and the end point of each path segment, mark it as the tangent direction value of each path segment, arrange the path segments in the order of acquisition, subtract the tangent direction value of ...

[0048] The cellulose, hemicellulose and lignin contents in the wood cell wall are obtained respectively and summed to obtain the wood group value. The wood surface decay value, wood mycelium impurity value, wood microfibril tangential deviation value and wood group value are marked as bfx, mjs, mwq and mhz respectively, and normalized with the wood microfibril angle repetition value Jp and substituted into the set formula model. Calculation is performed to obtain the wood comprehensive decay state value ZFZ, where ct1, ct2, ct3, ct4, ct5, ct6, ct7, ct8, ct9, ct10, ct11, ct12, ct13, ct14 and ct15 are preset weight factor coefficients, and the specific values ​​are determined by professionals in the field. <ct6<ct11,ct2<ct7<ct12,ct3<ct8<ct13,ct4> ct9>ct14, ct5>ct10>ct15, e is a natural constant, and its specific value is 2.718. When the vertical complexity rate is greater than 40%, microorganisms are more likely to invade the interior of the wood along the microfibrils with a larger angle along the texture direction, and the overall decay state of the wood is larger.

[0049] The physical structure, chemical composition, combustion characteristics, external environment and wood decay characteristics of wood are analyzed to determine the overall combustion efficiency of wood, wherein the physical structure of wood refers to the connected porosity, microstructure value, specific surface area and acoustic property value of wood, and they are added together to obtain the physical structure energy value of wood, wherein the wood microstructure value is the inverse value of the crystallinity of wood cellulose, and the acoustic property value is the sum of the propagation speed of ultrasound in wood and the main frequency of the ultrasonic signal divided by the ultrasonic energy attenuation coefficient to obtain; the chemical composition of wood refers to the density, chemical active group distribution, ash content and antioxidant content of wood, and the sum of the density and chemical active group distribution of wood is divided by the sum of the ash content and antioxidant content to obtain Wood active oxygen value, where the chemically active groups of wood refer to the hydroxyl and carbonyl groups in the wood. The ash content is high. During the combustion process of wood, the ash will form a thicker covering layer on the surface of the wood, and the thermal conductivity is also poor; the combustion characteristics of wood refer to the pyrolysis rate, tar yield, coke yield, and combustion activation energy of the wood. The pyrolysis rate is divided by the sum of the tar yield, coke yield, and combustion activation energy to obtain the wood pyrolysis value. The higher the coke yield, the more space it occupies inside the wood, and the more it hinders the diffusion of oxygen into the wood. The higher the tar yield, the thicker the sticky tar layer formed on the surface of the wood; the external environment of the wood refers to the temperature, humidity, and air pressure of the wood environment. The sum of the temperature and air pressure of the environment is divided by the humidity to obtain the ambient temperature and pressure value of the wood;

[0050] Normalize the physical structure energy value, wood active oxygen value, wood combustion specific decomposition value, wood ring temperature pressure value and wood comprehensive decay state value of wood, take the physical structure energy value of wood as the side length of the top side of the trapezoid, take the wood active oxygen value as the side length of the bottom side of the trapezoid, use the sum of the wood combustion specific decomposition value and the wood ring temperature pressure value as the height of the trapezoid to build a trapezoid, use the center point of the trapezoid as the center point of the equilateral triangle, build an equilateral triangle inside the trapezoid, use the wood comprehensive decay state value as the side length of the equilateral triangle, identify the non-overlapping area formed by the trapezoid and the equilateral triangle, and mark it as the wood comprehensive combustion grade value MRJ;

[0051] The equipment module is used to receive the fireplace equipment information and analyze and determine the material microscopic, glass reflection and refraction, and surface color roughness of the fireplace equipment to obtain the thermal radiation characteristic value of the fireplace equipment. The specific analysis steps are as follows:

[0052] Obtain the fireplace equipment material microstructure value, glass red reflection characteristic value, and fireplace equipment surface characteristic value in the fireplace equipment information, mark them as wgt, bhf, and bls, respectively, and perform normalization processing, and substitute them into the set formula RDZ = ζ × (c1 × wgt 2.15 +c2×bhf+c3×e bls ), calculate and obtain the heat radiation characteristic value RDZ of the fireplace equipment, wherein c1, c2 and c3 are the set influencing factor coefficients of the microstructure value of the fireplace equipment material, the glass red refraction characteristic value and the surface characteristic value of the fireplace equipment, respectively, ζ is the set correction factor coefficient, and the values ​​of c1, c2, c3 and ζ are all customized by those skilled in the art according to actual use, for example, the values ​​of c1, c2 and c3 are 1.3, 1.1 and 2, and ζ is 0.977;

[0053] It should be noted that the equipment material microstructure value is the sum of the atomic energy level density, molecular vibration frequency, and phonon state density of the equipment material to obtain, wherein the higher the energy level density, the higher the frequency of thermal radiation generated by electron transition, and the greater the intensity of thermal radiation. The high vibration frequency of molecules can promote more thermal radiation. The higher phonon state density can strengthen the interaction between electrons and photons, and can more effectively convert and transfer energy. The glass red refraction characteristic value refers to the infrared transmittance of glass divided by the sum of the glass reflectivity, surface roughness, and imaginary part of the refractive index to obtain, the larger the glass red refraction characteristic value, the higher the thermal radiation of the glass; the fireplace equipment surface value refers to the surface roughness of the fireplace equipment divided by the surface color brightness to obtain, the dark fireplace equipment surface is easier to absorb and radiate heat than the light surface, and the rough fireplace equipment surface has a larger surface area than the smooth surface, which can increase the area of ​​thermal radiation;

[0054] The indoor module is used to analyze the behavior characteristics of indoor personnel and solar radiation to obtain the indoor temperature demand value corresponding to each monitoring time. The specific analysis is as follows:

[0055] The behavior characteristics of indoor personnel are obtained, specifically, sleeping state, lying down to rest, party visit, light physical activity indoors, moderate physical activity indoors, and no personnel indoors, and the corresponding temperature demand values ​​are d1, d2, d3, d4, d5 and d6, and d1>d2>d3>d4>d5>d6, which are marked as the temperature demand value D of the behavior characteristics of indoor personnel, where light physical activity indoors refers to housework and office work, and moderate physical activity indoors refers to aerobics and parent-child games; the latitude f of the location of the fireplace equipment and the solar declination Υ are obtained. The solar declination is related to the date and is obtained according to astronomical data. The local time angle Φ is obtained by the formula Φ=(dt-12)×15°, dt is the local time, and the solar altitude angle tgj is obtained according to the formula tgj=arcsin(sinf×sinΥ+cosf×cosΥ×cosΦ). According to the formula tfj=arcsin(sinf×sinΥ+cosf×cosΥ×cosΦ), the solar altitude angle tgj is obtained. According to the formula tfj=arcsin(sinf×sinΥ+cosf×cosΥ×cosΦ), the solar altitude angle tgj is obtained. cos[(sintgj×sinf-sinΥ) / (costgj×cosf)], we get the solar azimuth tfj, and through the formula dtl=e-hd, we get the atmospheric transmittance dtl, where hd represents the atmospheric optical thickness. According to the formula If=Ic×dtl×sintgj, we get the solar direct radiation intensity If, where Ic is the solar constant, and according to the formula Is=λ×Ic×(1-dtl -1 / sintgj )×(1+cosjsj) / 2, the scattered radiation intensity Is is obtained, jsj refers to the angle between the building surface and the horizontal plane, λ is the sky condition coefficient, and the value of λ is AQI refers to the air quality index. According to the formula TYf = (If + Is) × S × cos (tfj-cjj), the indoor solar radiation heat value TYf is obtained. cjj refers to the angle between the window plane and the south direction, and S is the area of ​​the window.

[0056] Normalize the indoor personnel behavior characteristic temperature demand value D with the indoor solar radiation heat value TYf, divide the indoor personnel behavior characteristic temperature demand value D by the indoor solar radiation heat value TYf and multiply by the correction factor coefficient to obtain the indoor temperature demand value SWX;

[0057] The control module is used to receive the comprehensive combustion level value of wood, the thermal radiation value of the fireplace equipment, and the indoor temperature demand value, and control the opening of the fuel regulating valve. The specific analysis is as follows:

[0058] The wood comprehensive combustion grade value MRJ, the fireplace equipment thermal radiation value RDZ, and the indoor temperature demand value SWX are normalized according to the set formula model. Calculate to obtain the required opening SRG of the fuel regulating valve of the fireplace equipment, cg1, cg2, cg3 are respectively the preset influencing factor coefficients of the comprehensive flammability level of the material, the thermal radiation value of the fireplace equipment, and the indoor temperature demand value, ρ is the correction factor coefficient, and the specific value is determined by professionals in this field;

[0059] Compare the required opening of the fuel regulating valve of the fireplace device with the existing opening of the fuel regulating valve; if the existing opening of the fuel regulating valve is less than the required opening of the fuel regulating valve, increase the opening of the fuel regulating valve and make the adjusted opening of the regulating valve equal to the required opening of the fuel regulating valve; if the existing opening of the fuel regulating valve is equal to the required opening of the fuel regulating valve, do not adjust it; if the existing opening of the fuel regulating valve is greater than the required opening of the fuel regulating valve, reduce the opening of the fuel regulating valve and make the adjusted opening of the regulating valve equal to the required opening of the fuel regulating valve;

[0060] The above is an explanation of the present invention and should not be considered as a limitation thereof. Although several exemplary embodiments of the present invention have been described, it will be readily appreciated by those skilled in the art that many modifications may be made to the exemplary embodiments without departing from the novel teachings and advantages of the present invention. Therefore, all such modifications are intended to be included within the scope of the present invention as defined in the claims. It should be understood that the above is an explanation of the present invention and should not be considered as being limited to the specific embodiments disclosed, and modifications to the disclosed embodiments and other embodiments are intended to be included within the scope of the appended claims. The present invention is defined by the claims and their equivalents.

Claims

1. An adaptive energy-saving control system for fireplace equipment, comprising a data acquisition module, the data acquisition module is used to collect wood information, equipment information, indoor information, and send it to the wood module, equipment module and indoor module; characterized in that: Also includes: The wood module analyzes the physical structure, chemical composition, combustion characteristics, external environment and wood decay characteristics of the wood to determine the overall combustion efficiency of the wood and obtain the comprehensive combustion grade value of the wood; The equipment module is used to receive the fireplace equipment information and analyze and determine the material microscopic, glass reflection and refraction, and surface color roughness of the fireplace equipment to obtain the thermal radiation characteristic value of the fireplace equipment; The indoor module is used to analyze the behavior characteristics of indoor personnel and solar radiation to obtain the indoor temperature demand value corresponding to each monitoring time; The control module is used to receive the comprehensive combustion level value of wood, the thermal radiation value of the fireplace equipment, and the indoor temperature demand value, and control the opening of the fuel regulating valve.

2. The adaptive energy-saving control system for fireplace equipment according to claim 1, characterized in that: The steps for analyzing the comprehensive combustion grade value of wood are as follows: The physical structure energy value, wood active oxygen value, wood combustion specific decomposition value, wood ring temperature and pressure value and wood comprehensive decay state value of wood are normalized. The physical structure energy value of wood is the length of the top side of the trapezoid, the wood active oxygen value is the length of the bottom side of the trapezoid, the sum of the wood combustion specific decomposition value and the wood ring temperature and pressure value is used to establish a trapezoid with the height of the trapezoid as the center point of the equilateral triangle, an equilateral triangle is constructed inside the trapezoid with the center point of the trapezoid as the center point of the equilateral triangle, the comprehensive decay state value of wood is used as the side length of the equilateral triangle, the non-overlapping area formed by the trapezoid and the equilateral triangle is identified, and marked as the wood comprehensive combustion grade value MRJ.

3. The adaptive energy-saving control system for fireplace equipment according to claim 2, characterized in that: The steps for analyzing the physical structure energy value, wood active oxygen value, wood combustion specific decomposition value and wood ambient temperature and pressure value of the wood are as follows: The physical structure of wood refers to the connected porosity, microstructure value, specific surface area, and acoustic property value of wood, which are added together to obtain the physical structure energy value of wood. The wood microstructure value is the reciprocal value of the crystallinity of wood cellulose. The acoustic property value is obtained by dividing the sum of the propagation speed of ultrasonic waves in wood and the main frequency of ultrasonic signals by the ultrasonic energy attenuation coefficient. The chemical composition of wood refers to the density, chemically active group distribution, ash content, and antioxidant content of wood. The sum of the density and chemically active group distribution of wood is divided by the sum of the ash content and the antioxidant content to obtain the wood oxygen value. The chemically active groups of wood refer to the hydroxyl and carbonyl groups in wood. The combustion characteristics of wood refer to the pyrolysis rate, tar yield, coke yield, and combustion activation energy of wood. The pyrolysis rate is divided by the sum of the tar yield, coke yield, and combustion activation energy to obtain the wood pyrolysis value. The external environment of wood refers to the temperature, humidity, and air pressure of the wood environment. The sum of the temperature and air pressure of the environment is divided by the humidity to obtain the ambient temperature and pressure value of the wood.

4. The adaptive energy-saving control system for fireplace equipment according to claim 2, characterized in that: The steps for analyzing the comprehensive decay state value of wood are as follows: The cellulose, hemicellulose and lignin contents in the wood cell wall are obtained respectively and summed to obtain the wood group value. The wood surface decay value, wood mycelium impurity value, wood microfibril tangential deviation value and wood group value are marked as bfx, mjs, mwq and mhz respectively, and normalized with the wood microfibril angle repetition value Jp and substituted into the set formula model. Calculation is performed to obtain the wood comprehensive decay state value ZFZ, where ct1, ct2, ct3, ct4, ct5, ct6, ct7, ct8, ct9, ct10, ct11, ct12, ct13, ct14 and ct15 are preset weight factor coefficients, ct1 <ct6<ct11,ct2<ct7<ct12,ct3<ct8<ct13,ct4> ct9>ct14, ct5>ct10>ct15, e is a natural constant.

5. The adaptive energy-saving control system for fireplace equipment according to claim 4, characterized in that: The steps for analyzing the wood microfibril angle re-arrangement value and the wood microfibril tangential deviation excess value are as follows: The image of wood microfibrils is obtained by atomic force microscopy, and the crossing angles between different fiber bundles in the interwoven microfibrils are counted. The proportion of crossing angles less than 30 degrees or greater than 60 degrees is counted and marked as the crossing complexity rate. The angle between the microfibrils and the wood grain direction in the straight and parallel microfibrils is counted. The proportion of angles greater than 10 degrees is marked as the straight complexity rate. The crossing complexity rate and the straight complexity rate are marked as jf and bf, respectively. According to the set formula Jp=b1×jf+b2×bf, the wood microfibril angle repetition value Jp is obtained, where b2>b1; the wood microfibril image is divided into several path segments , obtain the angle between the starting point and the end point of each path segment, mark it as the tangent direction value of each path segment, arrange the path segments in the order of acquisition, subtract the tangent direction value of the tangent direction value of the previous order from the tangent direction value of the next order and take the absolute value, obtain the path tangent deviation of each segment, and sum them up to obtain the tangent deviation of wood microfibrils, count the number of path tangent deviations greater than 15 degrees in each segment, divide it by the total number of segments, obtain the wood microfibril cutting excess rate, perform weighted calculation on the wood microfibril tangent deviation and the wood microfibril cutting excess rate, and multiply them by the corresponding proportional factor coefficient to obtain the wood microfibril tangent deviation excess value.

6. The adaptive energy-saving control system for fireplace equipment according to claim 4, characterized in that: The steps of analyzing the wood mycelium impurity value are as follows: Step 1: Obtain wood hyphae images through an optical microscope, take the earliest appearance of hyphae in the wood cell gap as the starting point, measure segment by segment along the growth direction of hyphae, and measure the hyphae diameter of each segment. When it is greater than the set threshold CT1, the hyphae segment is marked as a potential hyphae trunk segment; Step 2: Obtain the growth direction vector of each potential mycelium trunk line segment and the direction vector of the adjacent previous mycelium trunk line segment, and obtain the angle value between each segment and the growth direction of the adjacent previous segment through the vector angle formula. When the angle is within the range of ±30 degrees, the mycelium segment is determined to be marked as the mycelium trunk line segment; Step 3: Starting from the starting point, continue to track along the potential mycelium trunk line segment until the end of the mycelium, connect all the marked mycelium trunk line segments to obtain a complete mycelium trunk path, mark the mycelium segments with a diameter less than or equal to the set threshold CT1 or the angle between each segment and the growth direction of the adjacent previous segment is not within the range of ±30 degrees as mycelium branch segments, and count the mycelium branch paths, divide the length of the mycelium branch path by the length of the mycelium trunk path to obtain the wood mycelium impurity value.

7. The adaptive energy-saving control system for fireplace equipment according to claim 4, characterized in that: The steps for analyzing the wood surface decay value are as follows: The wood surface is divided into several areas, and each area is irradiated with ultraviolet light with a wavelength of 365nm. The photoelectric detector device measures the number of photons in each area. If the number of photons in an area is less than 10 3 photons per second, the corresponding area is a healthy decay area on the surface. If the number of photons in the area is greater than or equal to 10 3 Photons per second and less than or equal to 10 5 photons per second, the corresponding area is a slightly decayed area. If the number of photons in the area is greater than 10 5 Photons per second and less than 10 7 photons per second, the corresponding area is a moderately decayed area of ​​the surface. If the number of photons in the area is greater than or equal to 10 7 photons per second, the corresponding area is the surface severely decayed area, and the proportions of healthy decayed area, light decayed area, moderate decayed area and severe decayed area are counted respectively. The proportions of light decayed area, moderate decayed area and severe decayed area are multiplied by weight factor coefficients a1, a2 and a3 respectively, and the sum is divided by the proportion of healthy decayed area to get the wood surface decay value, where a1 is <a2<a3。 8. The adaptive energy-saving control system for fireplace equipment according to claim 1, characterized in that: The steps for controlling and analyzing the opening of the fuel regulating valve are as follows: The wood comprehensive combustion grade value MRJ, the fireplace equipment heat radiation value RDZ, and the indoor temperature demand value SWX are normalized and calculated to obtain the required opening SRG of the fuel regulating valve of the fireplace equipment; The required opening of the fuel regulating valve of the fireplace equipment is compared with the existing opening of the fuel regulating valve. If the existing opening of the fuel regulating valve is less than the required opening of the fuel regulating valve, the opening of the fuel regulating valve is increased, and the adjusted opening of the regulating valve is equal to the required opening of the fuel regulating valve. If the existing opening of the fuel regulating valve is equal to the required opening of the fuel regulating valve, no adjustment is made. If the existing opening of the fuel regulating valve is greater than the required opening of the fuel regulating valve, the opening of the fuel regulating valve is reduced, and the adjusted opening of the regulating valve is equal to the required opening of the fuel regulating valve.

9. The adaptive energy-saving control system for fireplace equipment according to claim 8, characterized in that: The steps for analyzing the thermal radiation characteristic value of the fireplace equipment are as follows: Obtain the fireplace equipment material microstructure value, glass red reflection characteristic value, and fireplace equipment surface characteristic value in the fireplace equipment information, mark them as wgt, bhf, and bls, respectively, and perform normalization processing, and substitute them into the set formula RDZ = ζ × (c1 × wgt 2.15 +c2×bhf+c3×e bls ), calculate and obtain the heat radiation characteristic value RDZ of the fireplace equipment, c1, c2 and c3 are the setting influencing factor coefficients of the microstructure value of the fireplace equipment material, the glass red reflection characteristic value, and the surface characteristic value of the fireplace equipment, respectively, and ζ is the setting correction factor coefficient.

10. The adaptive energy-saving control system for fireplace equipment according to claim 8, characterized in that: The indoor temperature demand value analysis steps are as follows: Obtain the behavior characteristics of indoor personnel, specifically sleeping state, lying down to rest, party visit, light physical activity indoors, moderate physical activity indoors, no personnel indoors, and the corresponding temperature demand values ​​are d1, d2, d3, d4, d5 and d6, and d1>d2>d3>d4>d5>d6, marked as the temperature demand value D of the behavior characteristics of indoor personnel; obtain the latitude f of the location of the fireplace equipment, the solar declination Υ, the solar declination is related to the date, obtained according to astronomical data, and the local time angle Φ is obtained by the formula Φ=(dt-12)×15°, dt is the local time, according to the formula tgj=arcsin(sinf×sinΥ+cosf×cosΥ×cosΦ), the solar altitude angle tgj is obtained, according to the formula tf ... cos[(sintgj×sinf-sinΥ) / (costgj×cosf)], we get the solar azimuth tfj, and through the formula dtl=e-hd, we get the atmospheric transmittance dtl, where hd represents the atmospheric optical thickness. According to the formula If=Ic×dtl×sintgj, we get the solar direct radiation intensity If, where Ic is the solar constant, and according to the formula Is=λ×Ic×(1-dtl -1 / sintgj )×(1+cosjsj) / 2, the scattered radiation intensity Is is obtained, jsj refers to the angle between the building surface and the horizontal plane, λ is the sky condition coefficient, and the value of λ is AQI refers to the air quality index. According to the formula TYf = (If + Is) × S × cos (tfj-cjj), the indoor solar radiation heat value TYf is obtained. cjj refers to the angle between the window plane and the south direction, and S is the area of ​​the window. The indoor personnel behavior characteristic temperature demand value D is normalized with the indoor solar radiation heat value TYf. The indoor personnel behavior characteristic temperature demand value D is divided by the indoor solar radiation heat value TYf and multiplied by the correction factor coefficient to obtain the indoor temperature demand value SWX.

Images