CN102184481B - System and method for diagnosing and analyzing industrial energy - Google Patents

Abstract

The invention relates to a system and a method for diagnosing and analyzing industrial energy. The system comprises a process data acquisition circuit, a process database, a process data computing circuit and a system configuration module, wherein the process data acquisition circuit acquires the industrial process data of industrial process equipment within appointed time, the industrial process data is respectively input into the process database and the process data computing circuit according to a meter site number; the process database builds a process equipment model which takes process equipment contained in an energy consumption system as an object according to the industrial process data; the process equipment model comprises the following elements of equipment name, equipment input and output energy medium name and energy medium parameter; the process data computing circuit obtains the enthalpy of the energy medium corresponding to the meter site number according to the industrial process data; and the enthalpy is input to the database and stored as an energy medium parameter; and the system configuration module comprises a structure configuration module and a parameter configuration module, wherein the parameter configuration module comprises an enthalpy analysis module configuration module and an analysis parameter configuration module.

Description

A kind of energy consumption of industry diagnostic analysis system and method

Technical field

The present invention relates to a kind of energy management system, be specifically related to a kind of energy consumption of industry diagnostic analysis system and method.

Background technology

China is one of maximum in the world energy resource consumption state, and energy cost accounting example in total cost is higher, thereby the energy-saving and cost-reducing key task that has become each manufacturing enterprise of China.Many large and medium-sized industrial enterprise have proposed serial of methods and measure advances energy-saving and cost-reducing.The enterprise energy management is the basis of energy-saving and cost-reducing work, through the enterprise energy consumption situation is described intuitively, finds enterprise to the weak link of these energy consumption systems such as workshop or operation in the energy utilization process, proposes improvement direction and measure.

The foundation of energy consumption model is main with mathematical model usually in enterprise's energy analysis, like system identifying method etc., is generally used for Business entity's energy consumption unit modeling, and to enterprise's specific device exploitation, model commonality is poor.These modeling methods can reflect production scale and energy consumption situation such as energy consumption cost analysis, inputoutput to a certain extent, but can not embody system's energy-dissipation structure etc. be used for the deep layer energy analysis with can evaluation index.Thereby need a kind of can the succession on the unit model based at present badly, and set up one with angle intuitively and embody device integral body and unit simultaneously with stratification model that can situation, realize the target of the comprehensive energy spectrometer of enterprise, assessment and diagnosis.

Summary of the invention

The present invention is directed to the deficiency of prior art; Having proposed a kind of is object with the energy consumption system; Set up the stratification model that reflects energy consumption system integral body and process device usefulness ability situation simultaneously; So that the analytical approach different to employing at all levels; According to the thermodynamic analysis result to energy consumption system integral body and process device monomer with can state making diagnosis, quantitative conclusion and each process device energy of output energy consumption system overall performance utilize and damaed cordition, and the energy consumption of industry diagnostic analysis system of pointed evaluation index is provided; And energy consumption of industry diagnostic analysis method.

Technical scheme of the present invention is following:

Diagnosis of an industrial system can be used with the system energy use to diagnostic analysis, characterized in that: it includes the process data acquisition circuit, the process database, the process data calculation circuit and system configuration module; said process data acquisition circuit industrial process equipment, industrial process within a specified time data, and in accordance with the instrument tag number, respectively, of said industrial process data input into the process database and process data calculation circuit, the process data in the database according to the industrial process used to establish energy systems The process equipment included in the object model of the process equipment, the process plant model elements include device name, enter the name of the media output energy, the energy medium parameters; said process data calculation circuit according to the data acquisition of the industrial process Instrument-bit number corresponding to the energy of the medium enthalpy, and the enthalpy,

Enter the process database as an energy medium parameters are saved;

Said system configuration module comprises structural arrangements module and parameter configuration module, and said parameter configuration module comprises enthalpic analysis parameter configuration module and analytical parameters configuration module; Choose the input and output energy medium of said energy consumption system in the input and output energy medium of wherein said structural arrangements module by said process device model, import

analytical parameters configuration module of said parameter configuration module; Said enthalpic analysis parameter configuration module reads enthalpy from the energy medium parameter of said process device model; Be used to calculate the enthalpic analysis result; Said

analytical parameters configuration module reads

value from the energy medium parameter of said process device model, be used for calculating analysis result.

Said energy balance sheet, ability two are accounted index, energy distribution index; Said energy balance sheet comprises energy value, the income item of input and output each item energy medium and pays a ratio; Said energy balance index comprises energy recovery rate, energy output rating, energy discharge rate and capacity usage ratio; Said energy distribution index comprises that supply can distribute, import and can distribute, discharge can distribute, export and can distribute and reclaim and can distribute.

The

The results include energy use systems thermodynamics sophistication, energy use systems

efficiency of energy use systems in the process equipment loss coefficient, energy use systems loss coefficient; process equipment sophistication thermodynamics, process equipment

efficiency, process equipment loss coefficient.

The output of said enthalpic analysis result and

analysis result input analysis result is concentrated and is exported and show.

Comprise data structure linked database and circuit for calculating energy in the said process data counting circuit; Said data structure linked database calculates corresponding intermediate data according to said industrial process data; And said intermediate data imported said circuit for calculating energy; Said circuit for calculating energy comprises the energy computation model of corresponding each energy medium, and said energy computation model calls said intermediate data and industrial process data calculates and the enthalpy and

of output correspondence

Said industrial process data comprises mass parameter, flow parameter, electrical parameter, mean pressure parameter, medial temperature parameter; Said data structure linked database comprises technological process mixing gas component table, signature coefficient table, saturated vapour thermodynamic data table, superheated vapor thermodynamic data table, mixed gas thermodynamic parameter summary table and the liquid heat mechanics parameter table of corresponding each energy medium.

The energy computation model of said circuit for calculating energy comprises fuel energy computation model, steam energy computation model, mixing material energy computation model and mixed gas energy computation model.

A kind of energy consumption of industry diagnostic analysis method, its step comprises:

1) via the process of data acquisition circuit industrial process equipment, process data and process data of the input process data calculating circuit; industrial process based on said data corresponding to the enthalpy of the energy medium,

and the input enthalpy,

output to the process databases;

2) in said process database, setting up with the process device in the energy consumption system is the process device model of object, the data relation that the process device model is made up of device name, equipment input and output energy medium title, energy medium parameter; The enthalpy that said energy medium parameter is said energy medium,

3) the energy medium parameter that combines said process device model to preserve is carried out structural arrangements and parameter configuration; The enthalpic analysis parameter configuration that comprises said energy consumption system in the parameter configuration, and

analytical parameters of energy consumption system and process device configuration; Wherein structural arrangements is in the input and output energy medium of said process device model, to choose the input and output energy medium of said energy consumption system, in order to carry out

analytical parameters configuration of energy consumption system;

4) said enthalpic analysis parameter configuration is at first chosen energy medium from the input and output logistics of said energy consumption system, and specifies the energy value classification of each energy medium; According to energy quantitative conservation relation when changing and shift, calculate the enthalpic analysis result afterwards;

5) The

First define device configuration analysis parameters valid

and the system effectively

After using the process plant model

calculate

analysis results;

6) repeat above-mentioned steps according to scope collection analysis time enthalpy,

according to preset computation period, finally export enthalpic analysis result and analysis result.

Technique effect of the present invention is following:

The invention of a diagnostic analysis of industrial energy systems, including process data acquisition circuit, the process database, process data calculation circuit and system configuration module; process data acquisition circuit industrial process equipment, industrial process within a specified time data, and in accordance with the instrument Bit number of industrial process data are input process database and process data calculation circuit, the process database based on the establishment of industrial process energy use data contained in the system process equipment for the object model of the process equipment, process equipment model elements include device name, device Enter the name of the media output energy, the energy medium parameters; process data calculation circuit according to industrial process data acquisition instrumentation digit number corresponding to the energy of the medium enthalpy,

and enthalpy,

input process database as an energy medium parameters are saved; system configuration modules include structural configuration module and parameter configuration module, parameter configuration module configuration parameters including enthalpy analysis module and

analysis parameters configuration module; configuration module consists of a process in which the structure of the input device model output energy medium selected energy-using system input and output energy medium for parameter configuration module

analysis parameters configuration module; enthalpy analysis parameter configuration module of the energy from the process media device model parameters read enthalpy values used to calculate the enthalpy analysis,

analysis parameter configuration module of the energy from the process media device model parameters to read

value used Calculation

analyze the results.

The present invention is through the building process device model; And from the input and output energy medium of process device model, choose the input and output energy medium of energy consumption system, utilize degree and energy-saving potential through energy consumption system is whole with what the energy consumption system available energy was judged in evaluation that can situation; Decrease the analysis that distributes with energy consumption system energy-dissipation structure and and find out energy consumption system with the ability weak link.Membership and hierarchical relationship between process device model and the energy consumption system have been embodied; Make enthalpic analysis result and

analysis result more can embody the ability energy utilization and the damaed cordition of energy consumption system and process device; The analysis result better authenticity and the specific aim of output are for the main object of confirming the energy consumption system transformation provides foundation.

Process data counting circuit of the present invention comprises according to the classify pairing energy computation model of different-energy medium of gained of the characteristics of industrial enterprise's energy medium; Call intermediate data and industrial process data calculate and output is corresponding enthalpy, entropy and

characteristics according to the pairing energy computation model of different-energy medium according to industrial enterprise's energy medium; Medium is classified; With this basis that is categorized as; Set up the energy computation model of different-energy medium, simplified the computation process of energy datum greatly.Utilize this model real-time to obtain the required energy datum of enterprise's energy analysis equal energy source management work, for enterprise carries out deep with diagnosing and analytical work provides the data basis.

Description of drawings

Fig. 1 is a system architecture synoptic diagram of the present invention

Fig. 2 is a process data counting circuit structural representation of the present invention

Embodiment

The present invention will be described below in conjunction with accompanying drawing.

It is purpose that energy consumption system among the present invention refers to obtain product; The integral body that organically couples together by several processes equipment; Form this integral body and generally need multiclass various procedures equipment, between each process device, participate in multiple ability stream of also having of energy exchange and energy medium simultaneously.

As shown in Figure 1, energy consumption of industry diagnostic analysis of the present invention system comprises process data Acquisition Circuit 1, process database 2, process data counting circuit 3, system configuration module 4 and analysis result output collection 5.Process data Acquisition Circuit 1 is through the industrial process data of DCS system (industries process control system) gatherer process equipment, and like the attribute of intake medium with the output energy medium, the energy medium attribute comprises temperature, flow and pressure; These industrial process datas are input in the process database 2 according to the instrument item and preserve.In process database 2, setting up with the process device is the process device model of object; The data relation that the process device model is made up of device name, equipment input and output energy medium title, energy medium parameter, wherein the energy medium parameter is enthalpy, entropy,

data that provided by process data counting circuit 3.

Comprise data structure linked database 31 and circuit for calculating energy 32 in the process data counting circuit 3, circuit for calculating energy 32 comprises fuel energy computation model 321, steam energy computation model 322, mixing material energy computation model 323, mixed gas energy computation model 324.Comprise structural arrangements module and parameter configuration module in the system configuration module 4; Wherein choose the process device model of the process device that energy consumption system comprises in the process device model of structural arrangements module by process database 2; By the input and output energy medium of choosing whole energy consumption system in the selected process device model input and output energy medium, be used to carry out

analytical parameters configuration module of whole energy consumption system; Parameter configuration module comprises enthalpic analysis parameter configuration module and analytical parameters configuration module, to analysis result output collection 5 output enthalpic analysis results,

analysis result.Enthalpy analysis results include energy recovery and energy discharge rate, energy efficiency, energy output rate; analysis results including the use of thermodynamic energy system sophistication, energy use systems

efficiency of energy use systems of each device

loss coefficient, energy use systems

loss coefficient; Equipment thermodynamics sophistication, equipment

efficiency, equipment loss coefficient.

The energy medium of energy consumption system input and output comprises: supply with the primary energy (coal, oil, rock gas) of energy consumption system and the system of secondary energy (electricity, steam, coke, coal gas) and supply with ability E _{Supply with}Raw material is brought the input ability E of system of energy consumption system into _InputThe system recoveries that retracting device is collected can E _ReclaimThe system that product is taken out of and thermonegative reaction heat that comprises of energy consumption system output exports ability E _OutputLeaving that system that chilled water, waste gas, the waste liquid of energy consumption system take out of discharges can E _DischargeEnergy diagnosis and the theoretical foundation of analyzing are the first laws of thermodynamics; Thereby the enthalpy of exporting in the use data computing cicuit 3 in the system configuration module 4 of the present invention calculates with .

A plurality of associated data tables are set in the data structure linked database 31 of process data counting circuit 3; Characteristic according to energy medium defines the energy medium title respectively with energy medium in table; Set the corresponding relation that the energy medium title is intended to confirm different-energy medium and its analysis data and computing method; The coding of energy medium title can combine national regulation code and enterprise energy Media ID to define, to guarantee uniqueness.The corresponding cover associated data table of each energy medium title; In the associated data table, integrate in analysis data, the thermodynamic parameter intake counting circuit 32; Circuit for calculating energy 32 is exported each energy medium corresponding enthalpy, entropy, data according to results of intermediate calculations.Wherein data structure linked database 31 comprises associated data tables such as technological process mixing gas component table 311, enterprise energy signature coefficient table 312, saturated vapour thermodynamic data table 313, superheated vapor thermodynamic data table 314, mixed gas thermodynamic parameter summary table 315, liquid heat mechanics parameter table 316.

Each component volume content of comprising of technological process mixing gas component table 311 expression mixed gas wherein comprises parameters such as the partial component pressure of mixed gas, the average specific heat at constant pressure that is used to calculate the average specific heat at constant pressure of enthalpy and be used to calculate entropy, gas density.Enterprise energy signature coefficient table 312 derives from State Statistics Bureau's standard.Relation between the expression of saturated vapour thermodynamic data table 313 temperature, pressure and liquid enthalpy, vapour enthalpy and the vapour-liquid enthalpy.Superheated vapor thermodynamic data table 314 is contained each other pressure of steam level in the actual production according to production run, again with temperature value inquiry specific enthalpy and specific entropy, adopts the specific enthalpy under linear interpolation method acquisition actual temperature and the pressure and compares entropy.Mixed gas thermodynamic parameter summary table 315 is divided into ideal gas specific heat capacity coefficient table and standard enthalpy of formation becomes the Entropy Changes table; Ideal gas specific heat capacity coefficient table comprises component sequence number, component code name, component title, molecular formula, ideal gas specific heat capacity coefficient, correction factor, and standard enthalpy of formation becomes the Entropy Changes table and comprises that gas standard generation enthalpy change, standard generate thermodynamic parameters such as the density of free enthalpy change, standard generation Entropy Changes, standard chemical

liquid heat mechanics parameter table 316 expression mixing material, mean specific heat.

Fuel energy computation model 321 in the circuit for calculating energy 32 comprises feed coal energy computation model, oily energy computation model, electric flux computation model; Steam energy computation model 322 comprises saturated vapour energy computation model, superheated vapor energy computation model, saturation water energy computation model.Model in the circuit for calculating energy 32 obtains energy medium through the form in the data query structure connection database 31 and quantizes to calculate needed intermediate data, can obtain the energy parameter of energy medium.

As shown in Figure 2, in circuit for calculating energy 32, the data structure and the computing formula of fuel energy computation model 321 are following:

(a) feed coal energy computation model:

The feed coal energy calculates the model data structure

The model input parameter is quality, signature coefficient, water cut.

Wherein, quality obtains through the instrument item; The energy medium energy medium title of signature coefficient through feed coal related signature coefficient table 312 obtain, water cut ω obtains through the laboratory analysis data, notes unit conversion.

Output parameter is chemical enthalpy, heat

Chemistry enthalpy and heat

obtain through following computing formula:

Chemistry enthalpy Q=quality * signature coefficient * 7000 * 4.1868 (1)

The calorific value of every kilogram of standard coal equivalent of GB regulation is 7000kcal, and by the different separately calorific values standard coal equivalent that to be converted into every kg calorific value be 7000kcal, 7000 units are kcal/kg in the formula with the energy of different cultivars, different content; 1kcal=4.1868kJ; ω is the water cut of feed coal; 2438 is water latent heat, and unit is kJ/kg.

(b) oily energy computation model:

The oil energy calculates the model data structure

The model input parameter is flow, signature coefficient.

Wherein, flow obtains through the instrument item; The energy medium title of signature coefficient through oil related signature coefficient table 312 obtain, note unit conversion.

Output parameter is chemical enthalpy, heat

Chemistry enthalpy Q=quality * signature coefficient * 7000 * 4.1868 (kJ/kg) (3)

Heat

E _XQ=0.975Q (4)

(c) electric flux computation model:

Electric flux computation model data structure

The model input parameter is electric weight, signature coefficient, and electric weight obtains through the instrument item, the energy medium energy medium title of signature coefficient through electricity related signature coefficient table 312 obtain, note unit conversion.

Output parameter is enthalpy,

The data structure and the computing formula of steam energy computation model 322 are following:

(i) saturated vapour energy computation model:

The saturated vapour energy calculates the model data structure

Saturated vapour flow, medial temperature, the mean pressure of model input parameter for obtaining through the instrument item

Results of intermediate calculations is through searching temperature or pressure at saturated vapour thermodynamic data table 313, the specific enthalpy HG of acquisition and specific entropy SG.

Output parameter is enthalpy, entropy,

Saturated vapour enthalpy=flow * specific enthalpy (6)

Saturated vapour entropy=flow * specific entropy (7)

The physics of saturated vapour E _XPh=-(H ₀-H)+T ₀(S ₀-S)=(H-H ₀)-T ₀(S-S ₀) (8)

Wherein, H is a saturated vapour enthalpy under the physical condition; S is a saturated vapour entropy under the physical condition; H ₀Be benchmark attitude saturated vapour enthalpy; S ₀Be benchmark attitude saturated vapour entropy; T ₀Be benchmark attitude temperature.Saturated vapour benchmark attitude is 25 ℃, 0.10133MPa aqueous water, or 25 ℃, 3.169kPa saturated vapour are the benchmark attitude, and this Model Calculation is got 25 ℃, 3.169kPa saturated vapour for the benchmark attitude of steam.

(ii) superheated vapor energy computation model:

The superheated vapor energy calculates the model data structure

Have only at superheated vapor under the situation of physical change, the model input parameter is flow, medial temperature, mean pressure, obtains through the instrument item.

Results of intermediate calculations is specific enthalpy and specific entropy, obtains through looking into superheated vapor thermodynamic data table 314.

Output parameter is enthalpy, entropy,

Superheated vapor enthalpy=flow * specific enthalpy (9)

Superheated vapor entropy=flow * specific entropy (10)

Superheated vapor E _XPh=-(H ₀-H)+T ₀(S ₀-S)=(H-H ₀)-T ₀(S-S ₀) (11)

Wherein, H is a saturated vapour enthalpy under the physical condition; S is a saturated vapour entropy under the physical condition; H ₀Be benchmark attitude saturated vapour enthalpy; S ₀Be benchmark attitude saturated vapour entropy; T ₀Be benchmark attitude temperature.Saturated vapour benchmark attitude is 25 ℃, 0.10133MPa aqueous water, or 25 ℃, 3.169kPa saturated vapour are the benchmark attitude, and this Model Calculation is got 25 ℃, 3.169kPa saturated vapour for the benchmark attitude of steam.

(iii) saturation water energy computation model:

The saturation water energy calculates the model data structure

The model input parameter is flow, medial temperature, obtains through the instrument item.

Results of intermediate calculations is through searching temperature or pressure at saturated vapour thermodynamic data table 313, the specific enthalpy HF of acquisition and specific entropy SF.

Output parameter is enthalpy, entropy,

Enthalpy=flow (m ³) * 1000 * specific enthalpy (12)

Entropy=flow (m ³) * 1000 * specific entropy (13)

E _XPh＝-(H ₀-H)+T ₀(S ₀-S)＝(H-H ₀)-T ₀(S-S ₀) (14)

Wherein, H is a saturation water enthalpy under the physical condition; H ₀Be benchmark attitude saturation water enthalpy; T is an actual temperature; T ₀Be benchmark attitude temperature; S is a saturation water entropy under the physical condition; S ₀Be benchmark attitude saturation water entropy.It wherein is the benchmark attitude of saturation water with the status of criterion.

The data structure and the computing formula of mixing material energy computation model 323 are following:

This computation model is equally applicable to pure component liquid.

The mixing material energy calculates the model data structure

The model input parameter is volumetric flow rate, medial temperature, mean pressure, density, mean specific heat.

Wherein, flow, medial temperature, mean pressure obtain through the instrument item; Density and mean specific heat obtain through looking into liquid heat mechanics parameter table 316.

Output parameter is enthalpy, entropy,

The rich methanol liquid of incompressible liquid such as gas liquor, low-temperature rectisol, desulfurization rich solution etc., Cp=Cv=C.Pressure is very little to the enthalpy of liquid and the influence of entropy with respect to temperature variation, ignores at this, thereby can calculate by desirable level meter.Fluid flow is flow metering by volume generally, and the conversion relation of volumetric flow rate and mass rate is: mass rate=volumetric flow rate * density

$\mathrm{dS}=C_p\frac{\mathrm{dT}}{T}-{\left(\frac{\∂V}{\∂T}\right)}_p\mathrm{dp}$

The specific enthalpy of ∴ mixing material: h=C _p(T-T ₀)

Enthalpy=the flow of mixing material * specific enthalpy (15)

The specific entropy of mixing material $s=C_p\mathrm{Ln}\frac{T}{T_0}$

Entropy=the flow of mixing material * specific entropy (16)

Mixing material

$\mathrm{Ex}=(H-H_0)-T_0(S-S_0)=C_p\left({T-T}_0\right)-T_0{C}_p\mathrm{Ln}\frac{T}{T_0}---\left(17\right)$

Wherein, Cp is the mixing material mean specific heat; H is a liquid enthalpy under the physical condition; S is a liquid entropy under the physical condition; H ₀Be benchmark attitude liquid enthalpy; S ₀Be benchmark attitude liquid entropy; V is the liquid volume flow; T is an actual temperature; T ₀Be benchmark attitude temperature.With the status of criterion is the benchmark attitude of mixing material.

The data structure and the computing formula of mixed gas energy computation model 324 are following:

This computation model is equally applicable to pure component gas.

(u) mixed gas physical change computation model:

Mixed gas physical change energy calculates the model data structure

The model input parameter is flow, medial temperature, mean pressure, partial component pressure, average specific heat at constant pressure (enthalpy), average specific heat at constant pressure (entropy).

Wherein, flow, medial temperature, mean pressure obtain through the instrument item; Partial component pressure obtains through the technological process mixing gas component 311 of energy medium names associate; Average specific heat at constant pressure (enthalpy) and average specific heat at constant pressure (entropy) calculate through the ideal gas specific heat capacity coefficient table in the mixed gas thermodynamic parameter summary table 315 and obtain.

Output parameter: physics enthalpy change, physics Entropy Changes, physics

The general semi-invariant of flow is the amount under the design conditions, calculate the mole value, calculates enthalpy again; Its computing method are:

Volumetric flow rate under the amount=status of criterion of compounding substances/0.0224 (mol)

Volumetric flow rate under the status of criterion

wherein is designated as the design conditions that is of D down.

Average specific heat at constant pressure (the T of ideal gas mixture ₁～T ₂Average specific heat at constant pressure in the temperature range), promptly be used for the specific heat at constant pressure that enthalpy calculates:

$\underset{i}{\mathrm{\Σ}}{n}_i\frac{C_{\mathrm{pmh}}^{*}}{R}=\underset{i}{\mathrm{\Σ}}{n}_i{A}_i+\left(\underset{i}{\mathrm{\Σ}}{n}_i{B}_i\right)T_{\mathrm{am}}+\left(\underset{i}{\mathrm{\Σ}}{n}_i{C}_i\right)\left[\frac{1}{3}(4{T_{\mathrm{am}}}^2-T_1{T}_2)\right]+\left(\underset{i}{\mathrm{\Σ}}{n}_i{D}_i\right)T_1^{-1}{T}_2^{-1},---\left(18\right)$

T wherein _AmBe the arithmetic mean temperature, n _iBe the amount of each component of mixed gas,

Be the average specific heat at constant pressure of mixed gas,

is the thermodynamics medial temperature.

Be used for the specific heat at constant pressure

that entropy calculates

$\underset{i}{\mathrm{\Σ}}{n}_i\frac{C_{\mathrm{pms}}^{*}}{R}=\underset{i}{\mathrm{\Σ}}{n}_i{A}_i+\left(\underset{i}{\mathrm{\Σ}}{n}_i{B}_i\right)T_{\mathrm{lm}}+\left(T_{\mathrm{am}}{T}_{\mathrm{lm}}\right)(\underset{i}{\mathrm{\Σ}}{n}_i{C}_i+\underset{i}{\mathrm{\Σ}}{n}_i{D}_i{T}_1^{-2}{T}_2^{-2})---\left(19\right)$

The physics enthalpy change of mixed gas: $\mathrm{\Δ\; H}=C_{\mathrm{Pmh}}^{*}(T-T_0)---\left(20\right)$

The physics Entropy Changes of mixed gas: $\mathrm{\Δ\; S}=C_{\mathrm{Pms}}^{*}\mathrm{Ln}\frac{T}{T_0}-R\mathrm{Ln}\frac{p}{p_0}.---\left(21\right)$

The physics of mixed gas

${\mathrm{Ex}}_{\mathrm{ph}}=(H-H_0)-T_0(S-S_0)=C_{\mathrm{pmh}}^{*}(T-T_0)-T_0[C_{\mathrm{pms}}^{*}\ln \frac{T}{T_0}-R\ln \frac{p}{p_0}]---\left(22\right)$

Wherein,

Be that mixed gas is used for the specific heat at constant pressure that enthalpy calculates,

Be to be used for the specific heat at constant pressure that entropy calculates; T is an actual temperature; T ₀Be benchmark attitude temperature; H is a gas enthalpy under the physical condition; S is a gas entropy under the physical condition; H ₀Be benchmark attitude gas enthalpy; S ₀Be benchmark attitude gas entropy; P is an actual pressure; p ₀Be benchmark attitude pressure.With the status of criterion is the benchmark attitude of mixed gas.

(v) mixed gas chemical reaction energy computation model

Mixed gas chemical reaction energy calculates the model data structure

The model input parameter is flow, medial temperature, mean pressure, average specific heat at constant pressure (enthalpy), average specific heat at constant pressure (entropy).

Wherein, flow, medial temperature, mean pressure obtain through the instrument item; Average specific heat at constant pressure (enthalpy) and average specific heat at constant pressure (entropy) calculate through the ideal gas specific heat capacity coefficient table in the mixed gas thermodynamic parameter summary table and obtain.

Results of intermediate calculations be physics enthalpy change, physics Entropy Changes, physics

standard chemical enthalpy, standard chemical entropy, standard chemical

wherein, standard chemical enthalpy, standard chemical entropy, standard chemical

become the Entropy Changes table through the standard enthalpy of formation in the mixed gas thermodynamic parameter summary table 315 and obtain.

Output parameter: enthalpy, entropy,

Comprised physical change process in the mixed gas chemical reaction energy computation model; So the result of enthalpy entropy in the output parameter

is physical change and chemical change enthalpy entropy

sum, wherein the calculating of physics enthalpy change, physics Entropy Changes, physics

as above saves said.

The enthalpy of mixed gas=physics enthalpy change+chemical enthalpy (23)

The entropy of mixed gas=physics Entropy Changes+chemical entropy (24)

As shown in Figure 3; Comprise structural arrangements module and parameter configuration module in the system configuration module 4; Wherein choose the process device model of the process device that energy consumption system comprises in the process device model of structural arrangements module by process database 2; By the input and output energy medium of choosing whole energy consumption system in the selected process device model input and output energy medium, be used to carry out

analytical parameters configuration module of whole energy consumption system; Parameter configuration module comprises enthalpic analysis parameter configuration module and

analytical parameters configuration module.

Wherein the enthalpic analysis parameter configuration module has defined the energy classification of energy consumption system, comprises that supply can E _{Supply with}, input can E _Input, reclaiming can E _Reclaim, output can E _Output(comprising that product is taken out of can E _ProductWith energy supply E outside the system _{The outer confession}) and discharge ability E _Discharge, parameters characterizes by each energy medium enthalpy of process data counting circuit 3 output, enthalpy is the entrained energy value of each energy medium, with the energy value of identical category add and get final product above-mentioned all kinds of energy values.

Enthalpic analysis parameter configuration module of the present invention adopts traditional energy analysis method; According to energy quantitative conservation relation in conversion and when shifting, basic skills is that the known energy of the total amount of energy, current effective utilization and the energy that energy loses in transforming, transmit and utilizing of providing just can draw energy consumption efficiency.This method orderliness is clear, analyzes simply, is very helpful to instructing engineering practice.The enthalpic analysis result comprises energy balance sheet, can two accounts index, energy distribution index.Energy balance sheet comprises energy value, the income item of input and output each item energy medium and pays a ratio; Wherein energy balance sheet is as shown in table 1, and the income item is promptly taken in and the ratio of paying two in the table 1 with an expenditure ratio.The energy balance index comprises energy recovery rate η _Reclaim, energy output rating η _Output, energy discharge rate η _DischargeAnd capacity usage ratio η _Utilize, shown in equation (27)～(30).The energy distribution index comprises that supply can distribute, import and can distribute, discharge can distribute, export and can distribute and reclaim and can distribute.

Energy-balance equation:

E _Input+ E _Reclaim+ E _{Supply with}=E _Output+ E _Discharge+ E _Reclaim=(E _Product+ E _{The outer confession})+E _Discharge+ E _Reclaim(26)

Energy recovery rate

Energy output rating

Energy discharge rate

Wherein, η _Reclaim+ η _Output+ η _Discharge=1.

Capacity usage ratio

Supply can distribute as shown in table 2, is to supply with ability E _{Supply with}Distribution in different supply sources, can account for supply with various forms of supplies can E _{Supply with}Percentage recently represent, generally energy is divided into two types of heat energy and power.Input can distribute as shown in table 3, for input can E _InputDistribution in different input sources can account for input ability E with various forms of _InputPercentage recently represent.Discharging to distribute representes like table 4, is to discharge ability E _DischargeDistribution in difference discharge source, there are chilled water, flue gas, product, waste water etc. in the discharge source, can find that according to discharging to distribute which discharge can E _DischargeMight reduce, to confirm energy-conservation direction and measure.Output can distribute as shown in table 5, for output can E _OutputDistribution in different output sources can account for output ability E with various forms of _OutputPercentage recently represent.Recovery can distribute as shown in table 6, is to reclaim ability E _ReclaimDistribution, distribute thus and can grasp each and reclaim in that reclaim can E _ReclaimIn shared ratio, confirm energy-saving potential with this.

Table 1 energy balance sheet example

Table 2 is supplied with the distribution example of ability

Supply with the item that to distribute	Supply with the distribution % of ability
		Coal	46.87
Process steam	28.43
		Purify electricity consumption	11.32
Synthetic electricity consumption	13.39

The distribution example of table 3 input ability

Import the item that to distribute	The distribution % of input ability
		Oxygen 1	0.88
The raw gas boiler feed water	13.87
		The feedwater of conversion gas boiler	14.08
Oxygen 2	2.16
		Desalted water	30.38
High pressure nitrogen	4.44
		Ammonia cooler is used liquefied ammonia	21.24

Boiler feed water

12.96

Table 4 is discharged the distribution example of ability

Discharge the item that to distribute	Discharge the distribution % of ability
		Methane compressible drive steam condensate (SC)	23.86
Low-pressure steam condensate water 1	22.43
		Low-pressure steam condensate water 2	2.82
H2S	17.29
		The synthesic gas compressor condensate water	33.59

The distribution example of table 5 output ability

Export the item that to distribute	The distribution % of output ability
		CO2-1	8.89
CO2-2	5.45
		Hydrogen	5.90
Product liquefied ammonia	29.36
		Ammonia cooler goes out gas ammonia	30.11
Light oil	9.05
		Fuel gas	6.69
The by-product LP steam	4.55

Table 6 reclaims the distribution example of ability

Reclaim the item that to distribute	The distribution % of recyclable ability
		Methane compressible drive steam	100

is as a kind of parameter of estimating energy value; From the value that combines estimate energy of amount with matter; The process of

analytical parameters configuration is on the basis that energy consumption system is analyzed; The process device that wherein comprises is carried out profound analysis; The matter that discloses the inner energy that exists of energy consumption system is devalued and loss, the sign energy of science utilize degree.

analysis parameter configuration module defines the process equipment effectively and energy use systems effectively

Process Device effective

and the use of efficient energy systems

process data calculation circuit 3 by the output process input and output devices logistics

characterization.

is as a kind of parameter of estimating energy value; From the value that combines estimate energy of amount with matter; The process of

analytical parameters configuration module is on the basis that energy consumption system is analyzed; The process device that wherein comprises is carried out profound analysis; The matter that discloses the inner energy that exists of energy consumption system is devalued and loss, the sign energy of science utilize degree.

Analysis result comprises energy consumption system thermodynamics sophistication ε, energy consumption system

Efficient

Each process device in the energy consumption system

Decrease coefficient ξ _i, energy consumption system

Decrease coefficient ξ; Process device thermodynamics sophistication ε _i, process device

Efficient

Process device

Decrease coefficient ζ _i

Energy consumption system thermodynamics sophistication ε is through equation (31) expression, and promptly the system of energy consumption system exports

E _{X, out}Import with system E _{X, in}Ratio, system output

E _{X, out}For all logistics of going out energy consumption system

Sum, system's input

E _{X, in}For all logistics of going into energy consumption system Sum.

Energy consumption system

Efficient

Through equation (32) expression, promptly the system of energy consumption system is effective

E _{X, ef}And systematic cost E _{X, sup}Ratio.Systematic cost E _{X, sup}Serve as reasons the external world bring into each equipment of energy consumption system once with the secondary energy sum, wherein with product

Effective as system

E _{X, ef}, expressed cost

In what have utilized veritably.

Each process device in the energy consumption system

Decrease coefficient ξ _iThrough equation (33) expression, the i.e. equipment of process device

Decrease E _{X, L, i}At systematic cost

E _{X, sup}Middle proportion.Why not in the reversible process in office, must take place

To Transformation, this part minimizing

Be transformed into

Be referred to as equipment Loss E _{X, L, i}Process device in the energy consumption system

Decrease coefficient ξ _iNot only can disclose each link

The relative size of loss, and can find out each link clearly

Utilize degree.Equipment

Decrease E _{X, L, i}Be the equipment input

E _{X, in, i}Export with equipment

E _{X, out, i}Between difference.

Energy consumption system Decrease coefficient ξ through equation (34) expression, the i.e. system of energy consumption system

Damage is in the energy consumption system cost

Middle proportion, obviously energy consumption system Decrease coefficient ξ and equal each process device in the energy consumption system

Decrease coefficient ξ _iSummation.

Process device thermodynamics sophistication ε _iThrough equation (35) expression, i.e. the equipment of process device output

E _{X, out, i}Import with equipment

E _{X, in, i}The ratio.Equipment output

E _{X, out, i}For going out owning of process device The stream sum, the equipment input E _{X, in, i}For going into owning of process device

The stream sum.

Process device Efficient

Through equation (36) expression, promptly the equipment of process device is effective

E _{X, ef, i}With the equipment cost

E _{X, sup, i}Ratio; The equipment cost

E _{X, sup, i}Serve as reasons the external world bring into process device once and secondary energy.

Process device

Decrease coefficient ζ _iThrough equation (37) expression, indication equipment

Be lost in the equipment cost

E _{X, sup, i}In shared ratio.Equipment Loss E _{X, L, i}With the equipment cost

E _{X, sup, i}Between ratio be referred to as equipment

Decrease coefficient ζ _i

Energy consumption of industry diagnostic analysis method of the present invention comprises:

A) through the process of collecting data acquisition circuit an energy-using system procedures device and process data and process data input process data calculation circuit 3; process data calculation circuit 3 according to industrial process data corresponding to calculate the energy medium enthalpy, and input enthalpy ,

output to the process database 2;

2) in process database 2, setting up with the process device is the process device model of object, the data relation that the process device model is made up of device name, equipment input and output energy medium title, energy medium parameter; The energy medium parameter promptly is enthalpy,

by 3 inputs of process data counting circuit

3) carry out the visualisation parameters configuration through computing machine, the energy medium parameter that the cohesive process device model is preserved is carried out structural arrangements and parameter configuration; Wherein structural arrangements is in process database 2, to choose the process device model that the energy consumption system model is comprised; And in the input and output energy medium of process device model, choose the input and output energy medium of energy consumption system, in order to carry out

analytical parameters configuration of energy consumption system; The enthalpic analysis parameter configuration that comprises energy consumption system in the parameter configuration, and

analytical parameters of energy consumption system and process device configuration;

4) the enthalpic analysis parameter configuration of energy consumption system is at first chosen energy medium from the input and output logistics of energy consumption system, and specifies the energy value classification of each energy medium; Wherein the energy value classification comprises that supply can E _{Supply with}, input can E _Input, reclaiming can E _Reclaim, output can E _Output(comprising that product is taken out of can E _ProductWith energy supply E outside the system _{The outer confession}) and discharge ability E _DischargeAfterwards according to energy in conversion and when shifting quantitative conservation relation calculate the enthalpic analysis result, the enthalpic analysis result comprises energy balance sheet, can two accounts index, energy distribution index; Energy balance sheet comprises that balance sheet comprises the energy value of input and output each item energy medium, an income item and an expenditure ratio; The income item is an income and the ratio of paying two in the energy balance sheet with an expenditure ratio.The energy balance index comprises energy recovery rate η _Reclaim, energy output rating η _Output, energy discharge rate η _DischargeAnd capacity usage ratio η _UtilizeThe energy distribution index comprises that supply can distribute, import and can distribute, discharge can distribute, export and can distribute and reclaim and can distribute

5)

Analytical parameters disposes that at first define equipment is effective

Effective with system

Utilize the process device input and output logistics of preserving in the process device model afterwards

Calculate

Analysis result;

Analysis result comprises energy consumption system thermodynamics sophistication ε, energy consumption system

Efficient Each equipment in the energy consumption system

Decrease coefficient ξ _i, energy consumption system

Decrease coefficient ξ; Process device thermodynamics sophistication ε _i, process device

Efficient

Process device

Decrease coefficient ζ _i

6) according to scope collection analysis time desired data; Data Source is enthalpy,

homenergic parameter that said process data computing cicuit 3 calculates; Carry out multianalysis and calculating according to the energy analysis interpretational criteria, finally to analysis result output collection 5 output enthalpic analysis results and analysis result.

Should be pointed out that the above embodiment can make those skilled in the art more fully understand the invention, but do not limit the present invention in any way creation.Therefore; Although this instructions has carried out detailed explanation with reference to accompanying drawing and embodiment to the invention,, those skilled in the art are to be understood that; Still can make amendment or be equal to replacement the invention; In a word, all do not break away from the technical scheme and the improvement thereof of the spirit and the scope of the invention, and it all should be encompassed in the middle of the protection domain of the invention patent.

Claims (8)

1. energy consumption of industry diagnostic analysis system, be used for energy consumption system with can diagnostic analysis, it is characterized in that: it comprises process data Acquisition Circuit, process database, process data counting circuit and system configuration module; Said process data Acquisition Circuit is gathered the interior industrial process data of fixed time of industrial process equipment; And said industrial process data is imported said process database and process data counting circuit respectively according to the instrument item; It is the process device model of object that said process database is set up with the process device that comprises in the energy consumption system according to said industrial process data, and the element in the said process device model comprises device name, equipment input and output energy medium title, energy medium parameter; Said process data counting circuit obtains enthalpy,

of said instrument item corresponding energy medium according to said industrial process data, and with preserving as the energy medium parameter in said enthalpy, the said process database of

input;

Said system configuration module comprises structural arrangements module and parameter configuration module, and said parameter configuration module comprises enthalpic analysis parameter configuration module and

analytical parameters configuration module; Choose the input and output energy medium of said energy consumption system in the input and output energy medium of wherein said structural arrangements module by said process device model, import

analytical parameters configuration module of said parameter configuration module; Said enthalpic analysis parameter configuration module reads enthalpy from the energy medium parameter of said process device model; Be used to calculate the enthalpic analysis result; Said

analytical parameters configuration module reads

value from the energy medium parameter of said process device model, be used for calculating

analysis result.

2. a kind of energy consumption of industry diagnostic analysis as claimed in claim 1 system, it is characterized in that: said enthalpic analysis result comprises energy balance sheet, energy balance index, energy distribution index; Said energy balance sheet comprises energy value, the income item of input and output each item energy medium and pays a ratio; Said energy balance index comprises energy recovery rate, energy output rating, energy discharge rate and capacity usage ratio; Said energy distribution index comprises that supply can distribute, import and can distribute, discharge can distribute, export and can distribute and reclaim and can distribute.

3 as claimed in claim 1, wherein the diagnosis of an industrial energy, characterized in that: said

analysis results including the use of thermodynamic energy system sophistication, energy use systems

efficiency, with the The system can process equipment

loss coefficient, energy use systems

loss coefficient; process equipment sophistication thermodynamics, process equipment

efficiency, process equipment

loss coefficient.

4. like claim 1 or 2 or 3 described a kind of energy consumption of industry diagnostic analysis systems, it is characterized in that: said enthalpic analysis result with

analysis result input analysis result output concentrate and export and show.

5. like claim 1 or 2 or 3 described a kind of energy consumption of industry diagnostic analysis systems; It is characterized in that: comprise data structure linked database and circuit for calculating energy in the said process data counting circuit; Said data structure linked database calculates corresponding intermediate data according to said industrial process data; And said intermediate data imported said circuit for calculating energy; Said circuit for calculating energy comprises the energy computation model of corresponding each energy medium, and said energy computation model calls said intermediate data and industrial process data calculates and the enthalpy and

of output correspondence.

6. a kind of energy consumption of industry diagnostic analysis as claimed in claim 5 system, it is characterized in that: said industrial process data comprises mass parameter, flow parameter, electrical parameter, mean pressure parameter, medial temperature parameter; Said data structure linked database comprises technological process mixing gas component table, signature coefficient table, saturated vapour thermodynamic data table, superheated vapor thermodynamic data table, mixed gas thermodynamic parameter summary table and the liquid heat mechanics parameter table of corresponding each energy medium.

7. a kind of industrial energy equilibrium analysis as claimed in claim 5 system, it is characterized in that: the energy computation model of said circuit for calculating energy comprises fuel energy computation model, steam energy computation model, mixing material energy computation model and mixed gas energy computation model.

8. energy consumption of industry diagnostic analysis method, its step comprises:

1) pass through the process data that the process data Acquisition Circuit is gathered industrial process equipment, and with said process data input process data computing cicuit; Calculate said energy medium corresponding enthalpy,

according to industrial process data, and will import enthalpy,

outputs to process database;

2) in said process database, setting up with the process device in the energy consumption system is the process device model of object, the data relation that the process device model is made up of device name, equipment input and output energy medium title, energy medium parameter; The enthalpy that said energy medium parameter is said energy medium,

;

3) the energy medium parameter that combines said process device model to preserve is carried out structural arrangements and parameter configuration; The enthalpic analysis parameter configuration that comprises said energy consumption system in the parameter configuration, and

analytical parameters of energy consumption system and process device configuration; Wherein structural arrangements is in the input and output energy medium of said process device model, to choose the input and output energy medium of said energy consumption system, in order to carry out

analytical parameters configuration of energy consumption system;

4) said enthalpic analysis parameter configuration is at first chosen energy medium from the input and output logistics of said energy consumption system, and specifies the energy value classification of each energy medium; According to energy quantitative conservation relation when changing and shift, calculate the enthalpic analysis result afterwards;

5) said

analytical parameters disposes at first define equipment effective

and system effective

, utilizes in the process device model to calculate analysis result afterwards;

6) according to scope collection analysis time enthalpy,

; Repeat above-mentioned steps according to preset computation period, finally export enthalpic analysis result and

analysis result.

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