CN202133897U - Scheduling system of process industry pipe network system - Google Patents

Abstract

The utility model provides a scheduling system of a process industry pipe network system, comprising a real time database, a relation database, a man-machine interface module and a scheduling module. Through a scheduling calculating method, scheduling rules obtained from practical experience are combined with adjusting unit priority to calculate an accurate and quantized scheduling scheme, and to timely and conveniently provide an accurate and quantized scheduling scheme which combines factory real scheduling experience, thereby guiding and helping the factory to perform scheduling and rapidly and safely making the pipe network system stable. The scheduling system and method of the utility model can be applied on the process industry pipe network system comprising a steam system. The pipe network conversion method of the utility model can solve the problem of complex scheduling of the steam system multistage pipe network.

Description

A kind of dispatching system of process industry pipe network system

Technical field

The utility model relates to the dispatching system of process industry pipe network system, and is special, relates to the dispatching system of process industry vapour system.

Background technology

Widely used various energy medium in the process industry; Such as the coal gas of water, steam, iron and steel enterprise, the Device in Gas of chemical enterprise etc.; All transmit through pipe network; And on pipe network, all can connect corresponding apparatus, these equipment are responsible for producing, consume, transform the energy medium transmitted or it is carried out other kinds processing operation.Can the various device that be connected on the transmission pipe network of energy medium and the pipe network be called pipe network system, like vapour system in the public work etc.The common feature of pipe network system is the pipe network more complicated, and device type and quantity are more, and the produced on-site parameter is many, and the difficulty of artificial directly monitoring is big.Several kinds of typical energy medium of following brief account and corresponding pipe network and equipment.

Steam is process industry important energy media such as chemical industry, metallurgy, and steam produces through the energy (such as coal, rock gas, fuel oil etc.) burning heat release, and steam can be used as heat exchange or explained hereafter medium, also can drive generator for electricity generation or drive other equipment actings.

Vapour system by the multistage steam pipe network and on equipment form.The general pressing force difference of steam pipe system is divided into: what pipe network such as UHV (ultra-high voltage), high pressure, middle pressure, low pressure, and different enterprises is different according to technology, and its vapour system is made up of the steam pipe system of different brackets.Product consumption vapour equipment on the steam pipe system comprises common apparatus and process equipment, and common apparatus is also referred to as the assisted class production equipment and is called for short assisted class equipment or utility appliance, and process equipment also makes production type steaming plant be called for short and produces kind equipment or production equipment.Common apparatus refers to boiler, steam turbine, pressure and temperature reducing station, atmospheric valve etc.; Process equipment refers to that the product in the process system uses steaming plant.Having the different pressures grade is the characteristics that vapour system is different from other pipe network system, also is one of vapour system reason more complicated than other pipe network system.Therefore, if can resolve the scheduling problem of vapour system, scheduling problem that so also just can easier other pipe network system of solution.

Water also is workflow industry energy medium commonly used, can be divided into several types such as desalted water, condensate water, fire water and life water according to the purposes of water.Wherein desalted water is that former water is used to produce steam after treatment, and the equipment that connects on its pipe network comprises force (forcing) pump, boiler, turbine condenser, oxygen-eliminating device, heat interchanger and water disposal facility etc.Force (forcing) pump is given the pressurization of the desalted water in the pipe network, makes desalted water in pipe network, to flow; Heating makes it become steam to boiler to desalted water; The steam that the turbine condenser makes turbine get rid of is condensed into liquid and recycles; Oxygen-eliminating device is through reducing the oxygen content of desalted water to feeding steam in the desalted water; The effect of heat interchanger is to the desalted water heating or reclaims the waste heat of condensate water (can be used as desalted water uses); Water disposal facility mainly carries out biochemical treatment to the desalted water of former water and recovery, makes it satisfy the requirement of desalted water.

The coal gas of iron and steel enterprise is a kind of important secondary energy medium, can be divided into coke-oven gas, blast furnace gas and coal gas of converter three major types, and these three types of coal gas transmit use separately, also can mix the back transmission and use.Wherein coke-oven gas is the highest gas types of calorific value, and the equipment on its pipe network comprises: coke oven, fan blower, gas holder, pressurizing point and all types of user.Coke oven is the unit that produces coke-oven gas, and coke oven itself also needs a part of coke-oven gas to carry out the heating of coke oven; Fan blower is that effect is a coal gas of extracting the carbonization chamber out, makes it flow to cleaning procedure; Gas holder is the buffer unit of coke-oven gas, also plays the effect of stablizing the coke-oven gas ductwork pressure; Pressurizing point is the pressurized equipment of coal gas, is the power source of coal gas transmission; Common coke-oven gas user comprises gas fired-boiler, sintering machine etc.

Pipe network system, when incident such as major equipment fault especially took place such as vapour system generation working conditions change, usually, the dispatcher of factory can only make scheduling qualitatively according to experience in the past.This dispatching method can't provide accurate scheduling scheme, often causes scheduling time growth, energy consumption to increase.How using the experience of factory's scheduling qualitatively, obtain the scheduling scheme of accurate quantification, is the important techniques difficult problem that full operating mode scheduling needs breakthrough, also is the key problem of full operating mode scheduling.

The utility model content

The dispatching system of a kind of process industry pipe network system of the utility model; Can be to the various operating modes that need scheduling of enterprise's pipe network system generation in real time; For the dispatcher provides influence that this operating mode brings pipe network system and the accurate quantification scheduling scheme that has combined factory's actual schedule experience; To instruct and auxiliary its dispatched, what make that pipe network system can be quick, safe reaches stable.

A kind of dispatching system of process industry pipe network system comprises real-time data base, relational database, human-machine interface module, scheduler module, and the function of each several part is following:

Human-machine interface module links to each other with real-time data base, relational database, scheduler module; In order to check the real time data in the real-time data base; Check the scheduling scheme in the relational database, and, send instruction to scheduler module to relational database configuration and/or modification parameter;

Relational database links to each other with human-machine interface module, scheduler module, and storage is by the parameter of human-machine interface module configuration and/or modification; Said parameter comprises pipe network information, pipe network equipment information, anomalous event information, pipe network mode bit, regulating measure information and scheduling rule information; Said anomalous event information comprises the computing method of anomalous event determination methods and anomalous event influence; Whether said pipe network mode bit is in order to characterize pipe network in dispatch state; The information of said scheduling rule information stores comprises the regulated quantity of pairing regulating measure of concrete incident and the regulon of confirming; Said regulating measure information comprises the precedence information of regulon;

Real-time data base is connected with human-machine interface module, scheduler module and pipe network system actual production data, and the actual production data of storage pipe network system provide real time data according to the requirement of each module;

Scheduler module links to each other with real-time data base, relational database and human-machine interface module; After satisfying trigger condition, obtain anomalous event information, scheduling rule information and regulating measure information in the relational database, calculate the anomalous event influence, provide scheduling scheme according to the scheduling scheme production method in conjunction with the real time data in the real-time data base; And/or real-time follow-up scheduled for executing situation; Said trigger condition comprises that the dispatcher sends dispatch command through human-machine interface module to scheduler module.

The dispatching system of described process industry pipe network system can also comprise the operating mode judge module, and said operating mode judge module links to each other with human-machine interface module, real-time data base, relational database and scheduler module; Said operating mode judge module is according to the anomalous event determination methods in the anomalous event information that disposes in the relational database; Obtain real time data from real-time data base; Automatically judged whether that anomalous event takes place; When anomalous event takes place, anomalous event information is sent to scheduler module, trigger and calculate scheduling scheme; Perhaps receive the manual activation anomalous event information of human-machine interface module, and anomalous event information is sent to scheduler module, trigger and calculate scheduling scheme;

Said scheduler module is after the anomalous event information that receives the operating mode judge module; Obtain anomalous event information, scheduling rule information and regulating measure information in the relational database; Calculate the anomalous event influence in conjunction with the real time data in the real-time data base, provide scheduling scheme according to the scheduling scheme production method; And/or real-time follow-up scheduled for executing situation.

The dispatching system of described process industry pipe network system; Can also comprise the forecast model module; Said forecast model module is connected with real-time data base, relational database, human-machine interface module, scheduler module; Obtain data and the forecast model in the relational database in the real-time data base, the predicting the outcome of the product consumption of prediction energy medium, and said predicting the outcome is stored in relational database;

Said relational database can also be stored forecast model and the forecast model information that is used to predict energy medium product consumption; Said forecast model information comprises that pipe network equipment load and energy medium produce the model parameter in the consumption relational model, and the change calculations that said forecast model is used to calculate the anomalous event influence and when providing scheduling scheme, produces consumption through energy medium goes out the adjustment amount of load;

Said scheduler module combines the real time data in the real-time data base to calculate the anomalous event influence with the forecast model that is stored in the relational database, provides scheduling scheme according to the scheduling scheme production method; And/or real-time follow-up scheduled for executing situation.

A kind of dispatching system of process industry pipe network system comprises real-time data base, human-machine interface module, scheduler module, and the function of each several part is following:

Human-machine interface module links to each other with real-time data base, scheduler module; In order to check the real time data in the real-time data base; Check the scheduling scheme in the scheduler module, to the configuration of real-time data base and/or scheduler module and/or revise parameter, and/or send instruction to scheduler module;

Real-time data base is connected with human-machine interface module, scheduler module and pipe network system actual production data, the actual production data of storage pipe network system, and pipe network information and/or pipe network equipment information provide real time data according to the requirement of each module;

Scheduler module links to each other with real-time data base, human-machine interface module; Storage anomalous event information, pipe network mode bit, scheduling rule information and regulating measure information; Said anomalous event information comprises the computing method of anomalous event determination methods and anomalous event influence; The information of said scheduling rule information stores comprises the regulated quantity of pairing regulating measure of concrete incident and the regulon of confirming; Said regulating measure information comprises the precedence information of regulon; After satisfying trigger condition, combine the real time data in the real-time data base to calculate the anomalous event influence,, provide and the memory scheduling scheme according to the scheduling scheme production method in conjunction with scheduling rule information and regulating measure information, and/or real-time follow-up scheduled for executing situation; Whether said pipe network mode bit is in order to characterize pipe network in dispatch state; Said trigger condition comprises that the dispatcher sends dispatch command through human-machine interface module to scheduler module.

The dispatching system of described process industry pipe network system can also comprise the operating mode judge module, and said operating mode judge module links to each other with human-machine interface module, real-time data base and scheduler module; Said operating mode judge module is according to the anomalous event determination methods in the anomalous event information that disposes in the scheduler module; Obtain real time data from real-time data base; Automatically judged whether that anomalous event takes place; When anomalous event takes place, anomalous event information is sent to scheduler module, trigger and calculate scheduling scheme; Perhaps receive the manual activation anomalous event information of human-machine interface module, and anomalous event information is sent to scheduler module, trigger and calculate scheduling scheme;

Said scheduler module is calculated the anomalous event influence in conjunction with the real time data in the real-time data base after the anomalous event information that receives the operating mode judge module, provide scheduling scheme according to the scheduling scheme production method.

The dispatching system of described process industry pipe network system; Can also comprise the forecast model module; Said forecast model module is connected with real-time data base, human-machine interface module, scheduler module; Storage forecast model and forecast model information are according to predicting the outcome of the product consumption of forecast model prediction and storage energy medium; Said forecast model information comprises the model parameter in pipe network equipment load and the energy medium product consumption relational model; The change calculations that said forecast model is used to calculate the anomalous event influence and when providing scheduling scheme, produces consumption through energy medium goes out the adjustment amount of load, thereby gives the dispatcher with prompting intuitively;

The real time data in the said scheduler module combination real-time data base and the forecast model of forecast model module calculate the anomalous event influence, provide scheduling scheme according to the scheduling scheme production method; And/or real-time follow-up scheduled for executing situation.

A kind of process industry pipe network system, said pipe network system can comprise the dispatching system of above-mentioned pipe network system.

Described process industry pipe network system, said pipe network system can be vapour system.

The technique effect of the utility model

The scheme of the dispatching system of the utility model makes said method be achieved through physical system, and can the executed in real time situation of events affecting, scheduling scheme and/or scheduling scheme be shown to the dispatcher intuitively, instructs its scheduling process better.

The further scheme of the dispatching system of the utility model comprises the operating mode judge module, can judge automatically, accurately, timely whether anomalous event takes place, and in time be prompted to the user, has avoided personal monitoring's error and time-delay.

The further scheme of the dispatching system of the utility model comprises the forecast model module, can predict the product consumption of energy medium, makes dispatching system under the incomplete situation of measuring instrument, still can calculate events affecting, provides the scheduling scheme of precise quantification.When providing scheduling scheme, can provide the adjustment amount of load according to forecast model, thereby give the dispatcher with prompting intuitively.

The process industry pipe network system of the utility model comprises the dispatching system of described process industry pipe network system, the above-mentioned technique effect that therefore also has said dispatching system naturally.

The process industry pipe network system of the utility model is the process industry vapour system, so the process industry vapour system also has the above-mentioned technique effect of said process industry pipe network system naturally.

Description of drawings

Fig. 1 is the event classification synoptic diagram.

Fig. 2 generates the scheduling flow simplified schematic diagram.

Fig. 3 is a calculation process of selecting regulating measure.

Fig. 4 a is the structural drawing of an embodiment of dispatching system.

Fig. 4 b is the structural drawing of an embodiment of dispatching system.

Fig. 4 c is the structural drawing of an embodiment of dispatching system.

Fig. 4 d is the structural drawing of an embodiment of dispatching system.

Fig. 5 is a system functional block diagram.

Fig. 6 is full operating mode dispatching system workflow diagram

Fig. 7 is the scheduling feature flowchart

Embodiment

Details are as follows to the utility model in conjunction with the specific embodiment of accompanying drawing.

Introduce several notions earlier:

Said incident is an anomalous event in the utility model, is meant the unbalanced incident of pipe network system energy medium that causes, and also promptly causes the incident of unusual service condition.Said incident comprises pipe network equipment fault and pipe network system start-stop turner condition.Said energy medium imbalance comprises the deficiency of energy medium and excessive.

Said events affecting is meant the unbalanced amount of energy medium that causes when said incident takes place; Its generation can cause the uneven degree of pipe network system, i.e. in shortage the or energy medium excess quantity of energy medium.

Regulating measure is to incident, the concrete scheduling actions of regulon, and scheduling scheme is the combination of said regulating measure, and said regulating measure comprises the regulating measure of scheduling rule and the regulating measure of regulon priority.

Said regulon is the pipe network equipment that can be used for dispatching, i.e. conditioning equipment.

Said pipe network equipment comprises common apparatus and/or the process equipment on the pipe network system.

Said scheduling rule is the combination of the regulating measure of each regulon of relating to of the dispatching office to concrete incident, and the regulated quantity of these regulating measures is fixed; Promptly to each concrete incident, the fixing regulating measure of enterprise that is to say that the regulated quantity of said pipe network equipment is confirmed corresponding to same concrete incident when this incident took place.The scheduling of said concrete incident is meant when concrete incident takes place, reaches balance for making pipe network, the action of regulon.Same pipe network equipment is in different concrete incidents, and its scheduling rule maybe be different, causes the regulated quantity possibility of this pipe network equipment different.

Said concrete incident is meant the anomalous event of concrete a certain equipment, stops like boiler A, can be according to factory's scheduling summary of experience rule to each concrete incident.Said ubiquity incident is meant to the whole anomalous event of vapour system, comprises the incident that quantity of steam surplus or quantity of steam are not enough.In pipe network system, can confirm through monitoring concrete incident what kind of ubiquity incident can take place, possibly cause the not enough ubiquity incident of quantity of steam such as this concrete incident of boiler A parking, therefore concrete incident can be regarded an attribute of ubiquity incident as.In the ubiquity incident, each conditioning equipment (being regulon) is identical to the priority of different concrete incidents.

Said regulated quantity refers to the regulating degree of regulon, is the amount that is used for concrete scheduling towards the dispatcher, therefore can be the concrete numerical value or the percentages of regulating.Said scheduling value is meant the variation value of the concrete energy medium that the adjusting operation of regulon causes, is also referred to as the effect of regulon, is the amount that is used to carry out EQUILIBRIUM CALCULATION FOR PROCESS, so its numerical value is concrete numerical value, can not be percentages.Such as the scheduling value of atmospheric valve A is 40 to be the scheduling value of atmospheric valve A; Atmospheric valve opens or cuts out then is its scheduling actions; Certainly those skilled in the art can expect the mode of other expression scheduling value easily; Such as " increase 40 " etc., so the concrete form of scheduling value should be within the claim protection domain of the utility model.The scheduling value confirms that by regulated quantity and current pipe network data regulated quantity is the target of scheduling, and the scheduling value is the concrete operations that reach this target according to current pipe network data; Such as being " A reaches maximum with boiler " as if regulated quantity, if the maximum steam production of boiler A is 500, and current steam production is 300, and then scheduling value is 200; If the steam production of current boiler A is 400, then scheduling value is 100.The scheduling value that is included in the regulon in the scheduling rule is the fixed value of being confirmed by concrete incident.

Said regulon priority is the dispatching sequence of a plurality of regulons; Influence the speed of pipe network system speed and whether influence factor such as production by type, the scheduling actions of equipment and confirm; Obviously influence the state of pipe network system such as the adjusting of atmospheric valve, so the priority of the regulon of the type is higher; If have a strong impact on working condition, production run and product and process equipment regulated through regular meeting, so the priority of process equipment is often lower; Said regulon priority is applicable to the ubiquity incident.

With the vapour system is that example is introduced dispatching system and the method in the process industry pipe network system.Because the process industry pipe network system has similar characteristics; Therefore following embodiment is like no special declaration; All be applicable to the process industry pipe network system, said pipe network system comprises the pipe network system of various energy medium, comprises with the pipe network system as energy medium such as steam, coal gas, water.The related scheduling of the utility model is full operating mode scheduling.The purpose of full operating mode scheduling is different scheduling schemes to the dispatcher to be provided to the different event that vapour system takes place, and to instruct and auxiliary its scheduling process, makes steam pipe system reach stable as early as possible.This scheme can remedy the influence (being steam deficiency or excess quantity) that said incident causes vapour system.The principle of full operating mode scheduling is that the process First Principles of scheduling is to guarantee safety, therefore just requires to adjust as soon as possible pipe network and stablizes, and influence production on this basis as far as possible less, reduces energy dissipation.

To different events, generate the method for scheduling scheme and the form of scheduling scheme and also be not quite similar.The event classification situation of vapour system is as shown in Figure 1.

The incident of vapour system can be divided into start-stop turner condition and fault, and can simultaneous faults can be divided into two types by carrying out balance of steam calculating again.

For vapour system start-stop turner condition, all there is detailed job instruction in general factory, according to factory's operating experience, provides the operation steps guidance one by one and gets final product during scheduling.Therefore the utility model focus on the scheduling fault condition under, also comprise scheduling certainly for start-stop turner condition.Below divide two types of situation to discuss respectively.

1. can not carry out the operating mode that balance of steam calculates

Can not carry out ductwork pressure that operating mode that balance of steam calculates refers to that mainly unknown cause causes unusually and do not monitor the operating mode of steam flow significant change.Carry out balance of steam and calculate owing to can't obtain sufficient data, in the process that generates scheduling scheme, provide and dispatch guidance program qualitatively according to from actual schedule, summing up the scheduling rule that draws.Therefore this type operating mode is not the content of the utility model research owing to there is not obvious energy medium fluctuations in discharge.

2. can carry out the operating mode that balance of steam calculates

This type operating mode comprises clear failure (technology, equipment failure), comprises also that ductwork pressure that unknown cause causes is unusual but monitors the operating mode that main steaming plant flow significantly changes.Cause the equipment failure and the pipe network system start-stop turner condition of this type operating mode to be called anomalous event or to abbreviate incident as.This type operating mode can calculate direct and cascading effect, i.e. steam breach (promptly in shortage) or the excess quantity of fault to vapour system.

For this type of operating mode, can at first calculate events affecting, and calculate the scheduling scheme of quantification, and all be prompted to the user according to events affecting.

The utility model is discussed the above-mentioned operating mode that balance of steam calculates of carrying out, and, provides fast and safely and the regulating measure of precise quantification how according to the influence of this incident to such incident.

The steam power system of process industry has following characteristics:

1. the user disperses

Because the process industry process system is more numerous and more jumbled, so the user of vapour system often do not include only the steam turbine in the public work, also is dispersed in the production kind equipment of whole factory.

2. the source of steaming is numerous

Except that being specifically designed to the boiler of producing steam, also have waste heat boiler in the part producing kind equipment, can use the technology waste heat to steam, so the unit that steams of process industry vapour system is numerous.

3. pressure rating is many

General flow industry needs to use the steam of a plurality of grades owing to technological requirement.With the ammonia synthesis process is example, and HP steam is used to drive turbine and drags compressor and come compressed synthesis gas, and MP steam is used to drive air separation unit, and LP steam is used for technologies such as heat exchange.

Through analyzing the characteristics of above process industry vapour system,, need to solve following technological difficulties for realizing its full operating mode scheduling:

1. the balance of steam problem of many pressure rating pipe networks.

Generally all there is the steam pipe system of a plurality of pressure ratings in the workflow industry vapour system.On the one hand, some incidents take place to destroy the balance of steam on two-stage or the above pressure pipe network, jump car like the high pressure sucking condensing turbine and can cause the superfluous and middle pressure pipe network steam of high pressure pipe network steam not enough.

On the other hand, after some serious incidents take place, only rely on the regulating measure on certain one-level pipe network can not adjust pipe network balance extremely once more, can only participate in simultaneously regulating by multistage pipe network.

Therefore balance of steam problem how to take into account a plurality of pressure rating steam pipe systems is one of difficult point of full operating mode scheduling.

This problem is the problem that vapour system is different from other pipe network system, and therefore the solution for this problem is only applicable to vapour system.

2. the computation model (or being called computing method) that full operating mode scheduling requires is satisfied in research

The purpose of full operating mode scheduling is to adjust quickly and safely that pipe network is stable not to influence production simultaneously as far as possible, rather than turns to regulation goal with optimum economically, therefore can't find fixing optimization index to use the method calculating scheduling scheme of mathematical programming.For satisfying the target of full operating mode scheduling, can only be by the scheduling experience in factory's actual production.

How research uses the experience of factory's scheduling qualitatively, obtains the scheduling scheme of accurate quantification, is that full operating mode scheduling needs to break through an important techniques difficult problem, also is the key problem of full operating mode scheduling.

3. the relation between regulated quantity and the quantity of steam

When generating scheduling scheme, be basis with the product consumption balance of quantity of steam, but when providing scheme, should consider the ease for use of full operating mode scheduling, be accustomed to, provide suitable scheduling scheme form in conjunction with the scheduling in the actual production.To produce kind equipment is example, should provide scheduling scheme with the form of load adjustment amount, therefore needs to set up the relation that kind equipment and assisted class equipment regulated quantity and steam produce consumption of respectively producing.

4. calculating events affecting

Balance of steam calculates and under vapor pressure temperature stabilization prerequisite within the specific limits, carry out.Generally after vapour system generation incident, can cause vapor pressure and temperature variation.The pressure and temp of steam fluctuation is also bigger in the scheduled for executing process, and since scheduling to relate to equipment too much, be difficult to its situation of change of prevision.Data on flows when back vapor pressure temperature variation can not the use incident takes place is calculated events affecting.

For incidents such as process steam device fails or maintenance, need calculate events affecting through load and the funtcional relationship of quantity of steam and the load relational model that influences each other.Therefore the computing method of studying events affecting also are the primary study problems of full operating mode scheduling.

In brief, the key problem of full operating mode scheduling is exactly after incident takes place, and influence how to select suitable regulating measure combination to remedy incident makes vapour system reach balance again.The dispatching method that full operating mode scheduling adopts rule (being scheduling rule) to combine with priority, general thought is following:

According to enterprise's vapour system practical operation situation, sum up the set of the contingent incident of this vapour system.To each its scheduling rule of concrete event wrap-up, the fixing regulating measure of factory when promptly this incident takes place.Except that scheduling rule, also need sum up the priority of each conditioning equipment in the scheduling of ubiquity incident to concrete incident.

Scheduling scheme to each concrete incident is the combination of each regulating measure (regulating degree of conditioning equipment).These regulating measures are divided into two parts: a part combines balance of steam to calculate according to the scheduling rule of this incident to confirm, another is partly according to the priority of conditioning equipment and combine balance of steam to calculate to obtain.

Scheduling scheme calculates through balance of steam, meets the following conditions: suppose that events affecting is X, through the Y1 that act as of the definite regulating measure combination of scheduling rule, through the Y2 that act as of the definite regulating measure combination of priority facility.Then

X＝Y1+Y2(1)

Wherein, effect is meant that the steam that the operation of regulating measure causes changes value, is also referred to as the scheduling value.The schematic flow sheet that is generated scheduling scheme by aforesaid way is seen Fig. 2.

Some hypothesis that full operating mode scheduling relates to vapour system are as follows:

1. the temperature, pressure of desuperheating water is constant

Be convenience of calculation, for to the influential incident of multistage pipe network, or to the effective regulating measure of multistage pipe network, they influence X or effect Y all is converted into the quantity of steam on certain one-level pipe network.The effect that quantity of steam transforms in the adjacent two-stage pipe network is only played at the pressure and temperature reducing station, and its bound also is an item constraint of regulating measure effect simultaneously.In a word, pressure and temperature reducing can be regarded the coefficient of steam-reforming between the adjacent two-stage pipe network as not as final regulating measure.Owing to have only vapour system to have the problem of multistage pipe network, so this problem mainly is adapted to vapour system, also is only applicable to vapour system for the solution of this problem.

Funtcional relationship according to pressure and temperature reducing station turnover vapour and steam discharge:

Or G _o=wG _k

In the formula:

G _O---pressure and temperature reducing station admission flow, t/h;

G _K---pressure and temperature reducing station exhaust steam flow, t/h;

---the unevaporated water amount accounts for the number percent of total desuperheating water, %;

h _Ow---desuperheating water specific enthalpy, KJ/Kg;

The saturation water specific enthalpy that discharge at ---pressure and temperature reducing station, KJ/Kg;

h _o---advance pressure and temperature reducing station specific steam enthalpy, KJ/Kg;

h _k---go out pressure and temperature reducing station specific steam enthalpy, KJ/Kg;

The temperature and pressure that can suppose desuperheating water keeps constant, and promptly enthalpy keeps constant, thereby h _Ow,

h _o, h _kTherefore being constant, is constant through transformation ratio w between the pipe network at pressure and temperature reducing station between the adjacent two-stage pipe network.

2. temperature, pressure is constant everywhere before incident takes place and on the moment pipe network of finishing scheduling

On the one hand; Because irregular the following of variation of the pressure and temp of vapour system in scheduling process; Balance of steam states preceding and two moment of finishing scheduling take place in the balance of steam basis incident of carrying out when therefore generating scheduling scheme, and do not use the data on flows in the scheduling process.Promptly need hypothesis, according to scheduling scheme each steaming plant is adjusted to dbjective state after, vapour system can reach balance again, and is consistent before vapor pressure temperature and the incident generation.

On the other hand, in scheduling scheme, the regulated quantity of equipment such as pressure and temperature reducing station and atmospheric valve is that the form with valve opening provides.If suppose to be consistent before vapor pressure temperature and incident after the finishing scheduling takes place, then the funtcional relationship of valve opening and steam flow (being regulated quantity) can be represented with the inviscid flow flow characteristic.

In a word, full operating mode scheduling reaches again with the steam regulation system and stabilizes to purpose.The vapor pressure temperature does not change before and after having only the hypothesis scheduling, and calculating afterwards just has meaning.

The utility model provides a kind of scheduling scheme production method, is that a kind of scheduling rule is combined with the regulating measure with priority draws the mechanism of the scheduling value that is complementary with the anomalous event influence.The step of the computing method (being the scheduling scheme production method) of generation scheduling scheme is following:

1. through method for transformation between the pipe network at pressure and temperature reducing station

The process industry vapour system generally comprises the pipe network of a plurality of pressure ratings, need take into account the balance of steam problem of a plurality of pressure rating steam pipe systems.

The computation process that generates scheduling scheme is that virtual balance of steam calculates, and what scheduling scheme provided is the final adjusting target of each equipment.Therefore as far as having the vapour system of different pressures grade, in computation process, can steam flow be transformed between each pressure rating.Flow is transformed on certain one-level pipe network, thereby simplifies balance of steam computation process.

Transform between the pipe network and can be divided into two types: the conversion of the scheduling value Y of regulating measure and the conversion that influences X of incident.

Suppose that certain regulating measure can make A level pipe network steam consumption reduce Y _AIn the situation of not considering pressure and temperature reducing station adjusting bound, if through regulating the balance of pressure and temperature reducing station maintenance A level pipe network, can be with the effect Y of this steam consumption minimizing _ABe transformed into A+1 level pipe network, make A+1 level pipe network steam consumption reduce Y _A+1=Y _A* w _A+1, promptly this moment, A+1 level pipe network pressure and temperature reducing station throttle flow reduced Y _A+1Certainly this method for transformation also is suitable for production capacity for steam increases Y _ASituation.

A+1 representes the upper level pipe network of A, if the A level is pressed pipe network in referring to, then A+1 representes high pressure pipe network.w _A+1For steam passes through the transformation ratio of pressure and temperature reducing station from A+1 level pipe network to A level pipe network, refer to produce 1 ton of A level steam and need w _A+1Ton A+1 level steam is through the pressure and temperature reducing station.w _A+1Funtcional relationship (formula (2)) according to pressure and temperature reducing station turnover vapour and steam discharge calculates.After the pressure of pipe networks at different levels is confirmed, meeting under the above-mentioned assumed condition w _A+1Not with Y _AChange and become, can confirm as fixed value.

The method for transformation of events affecting X is similar, and jumping car with auxiliary turbine is example.Suppose that this auxiliary turbine is between B level pipe network and B-1 level pipe network, for once regulating extraction turbine.B representes the upper level pipe network of B-1, if the B-1 level is pressed pipe network in referring to, then B representes high pressure pipe network.This auxiliary turbine was X in the throttle flow of B level pipe network before incident took place _B, be X in the amount of drawing gas of B-1 level pipe network _B-1(the B-1 level quantity of steam of promptly carrying) to B-1 level pipe network.

The events affecting that this auxiliary turbine (being above-mentioned auxiliary turbine) jumping car can cause is the superfluous X of steam of B level pipe network _B, B-1 level pipe network production capacity for steam breach (in shortage) X _B-1(just above-mentioned auxiliary turbine is not jumped the B-1 level steam that can produce before the car); B level pipe network pressure and temperature reducing station throttle flow increases X under the situation of not considering pressure and temperature reducing station adjusting bound _BTo keep the balance of steam of B level pipe network, this events affecting can be equivalent to B-1 level pipe network steam excess quantity X ' _B-1=X _B/ w _B-X _B-1, visible by formula 2, X in the formula _B/ w _BRepresent B level pipe network quantity of steam X _BBe converted into the steam value of B-1 level pipe network by the pressure and temperature reducing station.

Past which rank of the pipe network conversion of quantity of steam is looked the situation of concrete incident and is decided in calculating.

Owing to have only vapour system just to have the multistage pressure pipe network, so this step only limits to vapour system, and promptly other pipe network system does not possess this step.

2. constraint condition

The regulating action Y that each equipment produces _XUpper limit constraint is all arranged, and this value is general all to be that adjusting bound by equipment itself limits.That is:

Y _X≤Y _X，MAX

But in vapour system, work as Y _XIn the time of conversion between pipe network need being carried out, also need consider the adjusting bound at pressure and temperature reducing station.In computation process, owing to often need carry out the conversion between pipe network to quantity of steam, the valve position desired value at pressure and temperature reducing station also changes with computation process.The adjusting upper limit of conditioning equipment should be got smaller in the upper limit own and the pressure and temperature reducing station upper limit.

Suppose certain atmospheric valve X at C level pipe network, therefore C+1 level pipe network turns down the C level steam use recruitment Y that atmospheric valve causes because fault causes steam superfluous (belonging to one type of ubiquity incident) _XNeed to transform, stablize the pressure and temperature reducing station that to open big C+1 level pipe network, and pressure and temperature reducing station admission recruitment Y for keeping C level pipe network toward higher level's pipe network _WShould satisfy formula 3:

Y _W/w _C+1＝Y _X (3)

Be limited to Y in the adjusting at pressure and temperature reducing station at this moment _{W, MAX}, Y then _XShould satisfy 4 constraint:

Y _X≤min{Y _X，MAX，Y _W，MAX/w _C+1}(4)

3. scheduling scheme calculation process, i.e. scheduling scheme production method is meant that scheduling rule combines with the regulating measure with priority to draw the mechanism of the scheduling value that is complementary with the anomalous event influence.

The computation process of scheduling scheme is exactly to select the process of regulating measure combination according to events affecting; Because full operating mode scheduling does not have fixing optimization objective function, the best way contrasts coupling according to scheduling rule and priority with events affecting and regulating action exactly one by one.

After incident takes place, at first calculate events affecting X, according to the scheduling rule of this incident and the priority of each conditioning equipment (being regulon), progressively generate the combination of regulating measure afterwards, and its effect Y and events affecting X are compared.When Y=X, represent that current regulating measure combination can make vapour system reach balance again, this regulating measure combination is full operating mode scheduling scheme.

The influence of incident is meant the influence of ubiquity incident, and promptly in shortage the or excess quantity of steam is represented with X; The effect of regulating measure is represented with Y.X _IncidentBe the influence of former ubiquity incident, Y _RuleEffect for by the definite regulating measure of experience scheduling rule also is meant the effect of the regulating measure of the concrete incident that causes this ubiquity incident, Y _nExpression priority is the effect of the regulating measure of n.

Select the flow process of regulating measure as shown in Figure 3:

The computing method of scheduling scheme may further comprise the steps:

1) calculates events affecting

Calculating events affecting is the computing method of anomalous event influence, the influence that is used to calculate anomalous event.The computing method of events affecting are according to the difference of concrete incident and difference.When calculating events affecting; Total thinking is: at first calculate the energy medium amount (to vapour system is quantity of steam) of all equipment relevant with this incident after incident takes place; The energy medium amount (is quantity of steam to vapour system) that itself and incident take place under the preceding steadily operating mode is compared, and difference is an events affecting.As far as vapour system, the incident that some impact a plurality of pressure rating pipe networks, its events affecting also need carry out the conversion between the pipe network.

2) effect of calculating scheduling rule

Regulated quantity according to the determined regulating measure of scheduling rule is also confirmed, therefore can confirm its scheduling value according to current pipe network data computation, promptly acts on Y _RuleNew deficiency or the excess quantity of vapour system becomes new influence (being the incident lingering effect) after using the scheduling rule regulating measure, uses X _NewlyExpression, the relation of itself and scheduling rule effect and events affecting is suc as formula shown in 5:

X _Newly=X _Incident-Y _Rule(5)

Above result calculated X _NewlyBe prediction to vapour system situation after the use scheduling rule regulating measure, rather than actual this regulating measure of implementing.If X _Newly=0, to explain and use the scheduling rule regulating measure can make vapour system reach balance, this calculation process finishes, and the scheduling scheme of output is exactly the scheduling rule regulating measure.

3) effect of coupling priority

If X _Newly≠ 0, explain and use the scheduling rule regulating measure can not make vapour system reach balance, need be that 1 regulating measure begins from priority, confirm that priority is the scheduling value Y of the regulating measure of 1 regulon ₁, calculate the incident lingering effect X of this moment _{1 is new}, X then _{1 is new}=X _Newly-Y ₁If X _{1 is new}=0, be that the regulating measure and the regulated quantity thereof of 1 regulon exported as scheduling scheme then with the regulating measure of above-mentioned scheduling rule and regulated quantity thereof and priority; If X _{1 is new}≠ 0, then carry out downwards;

4) according to priority n order from high to low, the ascending order of promptly digital n, the effect Y of regulating measure relatively successively _nDeficiency or the excess quantity X current with vapour system _{N-1 is new}The difference X of (i.e. the lingering effect of this incident) _{N is new}=X _{N-1 is new}-Y _nThe priority of n=1 is greater than the priority of n=2.Be that the n value is big more, priority is low more.X _{N-1 is new}Expression use scheduling rule regulating measure and priority less than all regulating measures of n after new deficiency or the excess quantity of vapour system, if X _{N is new}=0; The regulating measure that the regulon that uses this priority is described can make pipe network system reach balance, then with step 2) in regulating measure and regulated quantity thereof and the priority of scheduling rule be that the regulating measure and the regulated quantity thereof of all regulons of 1 to n exported as scheduling scheme; If X _{N is new}≠ 0, then calculate the incident lingering effect X of this moment according to said method _{N+1 is new}, by that analogy, until X _{M is new}=0, with step 2) in regulating measure and regulated quantity thereof and the priority of scheduling rule be that the regulating measure and the regulated quantity thereof of all regulons of 1 to m exported as scheduling scheme; The balance of steam group of equations is suc as formula 6,

Priority is the effect Y of the regulating measure of n _nSpan: 0≤Y _n≤Y _{N, max}

Y _{N, max}By the bound constraint of regulon and current state (mainly being the state at the pressure and temperature reducing station) decision of vapour system.Concrete computing method are seen method for transformation between the above-mentioned pipe network.Certainly if pipe network system is not a vapour system, then there is not the conversion between the pipe network.At this moment, a bound constraint decision Y by regulon _{N, max}Scope.

Similar with the effect of calculating scheduling rule, X _{N is new}Be prediction to vapour system situation after using priority as the regulating measure of n, rather than actual this regulating measure of implementing.If X _{N is new}=0, explain that vapour system reaches balance after using the regulating measure that priority is n, the output scheduling scheme: scheduling rule regulating measure and priority are smaller or equal to all regulating measures of n.

The full operating mode dispatching system of steam can be to the real-time various operating modes that take place of process industry vapour system; The influence of in time pointing out this operating mode that vapour system is brought for the steam dispatcher; And calculate corresponding scheduling scheme and be prompted to the user with suitable form; To instruct and auxiliary its scheduling process, make steam pipe system reach stable as early as possible.

The dispatching system that comprises the process industry pipe network system of above-mentioned scheduling scheme production method; Shown in Fig. 4 a; Comprise database, human-machine interface module, scheduler module etc., said database can be divided into real-time data base and relational database, certainly under each module has self the situation of storage unit, also can have only real-time data base; In the latter case, need stored parameters or data storage in the module of calling these parameters or data.Following brief introduction has the function of the dispatching system each several part of relational database.

Human-machine interface module links to each other with real-time data base, relational database, scheduler module; In order to check the real time data in the real-time data base; Check the scheduling scheme in the relational database, and, send instruction to scheduler module to relational database configuration and/or modification parameter.

Relational database links to each other with human-machine interface module, scheduler module, and storage is by the parameter of human-machine interface module configuration and/or modification; Said parameter comprises pipe network information (being pipeline parameter), pipe network equipment information (being device parameter), anomalous event information, pipe network mode bit, regulating measure information and scheduling rule information.Pipe network information and pipe network equipment information stores pipe network and the basic parameter of equipment in the pipe network system, like pressure rating, regulating degree bound etc.The anomalous event information stores anomalous event influence type (cause energy medium superfluous or not enough), the computing method of anomalous event influence (energy medium excess quantity or in shortage) and the information such as determination methods of anomalous event.The regulating measure information stores information such as the type of action of regulating measure, priority.Because regulon is to be used to the equipment regulating and dispatch, therefore said pipe network equipment information comprises regulon information.Said anomalous event information comprises the computing method (being the method for above-mentioned calculating events affecting) of anomalous event determination methods and anomalous event influence; Whether said pipe network mode bit is in order to characterize pipe network in dispatch state.Scheduler module was according to the type of action and the priority of scheduling rule information, regulating measure when anomalous event took place; Influence type in conjunction with anomalous event influence and anomalous event; Use above-mentioned scheduling scheme production method to provide suitable scheduling scheme, and/or the scheduling implementation status is followed the tracks of.The information of scheduling rule information stores comprises the regulated quantity of pairing regulating measure of concrete incident (being concrete anomalous event) and the regulon of confirming, from enterprise practical scheduling experience, sums up to obtain.Said regulating measure information comprises the precedence information of regulon.The back scheduler module takes place and combines the precedence information of regulating measure to provide suitable scheduling scheme according to scheduling rule in anomalous event.

Real-time data base is connected with human-machine interface module, scheduler module and pipe network system actual production data, and the actual production data of storage pipe network system provide real time data according to the requirement of each module.Particularly, real-time data base can read the DCS data through the OPC mode, preserves real-time and historical production data required when dispatching, and can certainly read corresponding production process data through other mode of the prior art.

Scheduler module links to each other with real-time data base, relational database and human-machine interface module; After satisfying trigger condition, obtain anomalous event information, scheduling rule information and regulating measure information in the relational database, calculate the anomalous event influence, provide scheduling scheme according to the scheduling scheme production method in conjunction with the real time data in the real-time data base.Scheduler module is according to the computing method of anomalous event influence, and the influence of combination real time data calculating anomalous event, influences the suitable scheduling scheme of type selecting according to anomalous event.And/or real-time follow-up scheduled for executing situation.Certainly the computing method of anomalous event influence also can be obtained the real time data of being joined in the table according to " anomalous event influences the computing information table ", calculate events affecting.Said trigger condition comprises that the dispatcher sends dispatch command through human-machine interface module to scheduler module.

Described scheduling scheme method of testing comprises the steps:

1) computing method according to events affecting combine real time data to calculate events affecting, with X _IncidentExpression; The computing method of said events affecting are meant the energy medium amount of all equipment relevant with this incident after incident takes place that calculate, and the energy medium amount that itself and incident take place under the preceding steadily operating mode is compared, and difference is an events affecting; Said incident is an anomalous event, is meant to cause the unbalanced incident of pipe network system energy medium, said energy medium imbalance to comprise the not enough or excessive of energy medium; Said events affecting is meant the unbalanced amount of energy medium that causes when said incident takes place;

2) confirm scheduling value Y according to each regulating measure of certain scheduling rule _RuleRegulating measure is to incident, the concrete scheduling actions of regulon, and regulating measure comprises each regulating measure of certain scheduling rule and the regulating measure of regulon priority; Said regulon is the pipe network equipment that can be used for dispatching, i.e. conditioning equipment; Said pipe network equipment comprises common apparatus and/or the process equipment on the pipe network system; Said scheduling rule is the combination of target of the regulating measure of each regulon of relating to of the dispatching office to concrete incident, and the regulated quantity of these regulating measures is fixed; The scheduling of said concrete incident is meant when concrete incident takes place to making pipe network reach balance, the scheduling actions that regulon is concrete; Said regulated quantity refers to the regulating degree of regulon; Said scheduling value Y _RuleBe meant the variation value of the concrete energy medium that the adjusting operation of regulon causes; Said regulon priority is the dispatching sequence of a plurality of regulons; Said concrete incident is concrete anomalous event, is meant the anomalous event of concrete pipe network equipment,

After using the regulating measure of scheduling rule, pipe network system energy medium amount of unbalance that do not remedied, that calculate is called the incident lingering effect, with X _NewlyExpression: X then _Newly=X _Incident-Y _RuleIf X _Newly=0, then the regulating measure and the regulated quantity thereof of said scheduling rule are exported as scheduling scheme; If X _Newly≠ 0, then carry out downwards;

3) if X _Newly≠ 0, confirm priority the highest be that priority is the scheduling value Y of the regulating measure of 1 regulon ₁, calculate the incident lingering effect X of this moment _{1 is new}, X then _{1 is new}=X _Newly-Y ₁If X _{1 is new}=0, be that the regulating measure and the regulated quantity thereof of 1 regulon exported as scheduling scheme then with the regulating measure of above-mentioned scheduling rule and regulated quantity thereof and priority; If X _{1 is new}≠ 0, then carry out downwards;

4) according to priority n order from high to low, the ascending order of promptly digital n, the scheduling value Y of the regulating measure of the regulon of this priority n relatively successively _nWith events corresponding lingering effect X _{N-1 is new}Difference X _{N is new}=X _{N-1 is new}-Y _nIf X _{N is new}=0, then with step 2) in regulating measure and regulated quantity thereof and the priority of scheduling rule be that the regulating measure and the regulated quantity thereof of all regulons of 1 to n exported as scheduling scheme; If X _{N is new}≠ 0, then calculate the incident lingering effect X of this moment according to said method _{N+1 Newly}, by that analogy, until X _{M is new}=0, with step 2) in regulating measure and regulated quantity thereof and the priority of scheduling rule be that the regulating measure and the regulated quantity thereof of all regulons of 1 to m exported as scheduling scheme.

Each module in said dispatching system has under the situation of memory function or storage unit, can the parameter in the above-mentioned relation database be stored in each correlation module, thereby omits relational database, shown in Fig. 4 c, below briefly introduces this situation:

Said dispatching system can comprise real-time data base, human-machine interface module, scheduler module, and the function of each several part is following:

Human-machine interface module links to each other with real-time data base, scheduler module; In order to check the real time data in the real-time data base; Check the scheduling scheme in the scheduler module, to the configuration of real-time data base and/or scheduler module and/or revise parameter, and/or send instruction to scheduler module.

Real-time data base is connected with human-machine interface module, scheduler module and pipe network system actual production data, the actual production data of storage pipe network system, and pipe network information and/or pipe network equipment information provide real time data according to the requirement of each module.Because regulon is to be used to the equipment regulating and dispatch, therefore said pipe network equipment information comprises regulon information.Particularly, real-time data base can read the DCS data through the OPC mode, preserves real-time and historical production data required when dispatching, and can certainly read corresponding production process data through other mode of the prior art.

Scheduler module links to each other with real-time data base, human-machine interface module; Store above-mentioned anomalous event information, pipe network mode bit, scheduling rule information and regulating measure information; Said anomalous event information comprises the computing method of anomalous event determination methods and anomalous event influence; After satisfying trigger condition, combine the real time data in the real-time data base to calculate the anomalous event influence; In conjunction with scheduling rule information and regulating measure information; Provide and the memory scheduling scheme according to above-mentioned scheduling scheme production method; And/or the trace scheduling implementation status, scheduler module is according to the computing method of anomalous event influence and combine real time data to calculate the anomalous event influence, influences the suitable scheduling scheme of type selecting according to anomalous event.And/or real-time follow-up scheduled for executing situation.Whether said pipe network mode bit is in order to characterize pipe network in dispatch state; Said trigger condition comprises that the dispatcher sends dispatch command through human-machine interface module to scheduler module.

Further scheme can also comprise the operating mode judge module, and said operating mode judge module links to each other with human-machine interface module, real-time data base, relational database and scheduler module; Said operating mode judge module is according to the anomalous event determination methods in the anomalous event information that disposes in the relational database; Periodically or at random obtain real time data from real-time data base; Automatically judged whether that anomalous event takes place; When anomalous event takes place, anomalous event information is sent to scheduler module, trigger and calculate scheduling scheme; Perhaps receive the manual activation anomalous event information of human-machine interface module, and anomalous event information is sent to scheduler module, trigger and calculate scheduling scheme;

Have in each module under the situation of memory function or storage unit, said operating mode judge module can also not be connected with relational database, and only links to each other with human-machine interface module, real-time data base and scheduler module; Said operating mode judge module is according to the anomalous event determination methods in the anomalous event information that disposes in the scheduler module; Periodically or at random obtain real time data from real-time data base; Automatically judged whether that anomalous event takes place; When anomalous event takes place, anomalous event information is sent to scheduler module, trigger and calculate scheduling scheme; Perhaps receive the manual activation anomalous event information of human-machine interface module, and anomalous event information is sent to scheduler module, trigger and calculate scheduling scheme; At this moment, said scheduler module is calculated the anomalous event influence in conjunction with the real time data in the real-time data base after the anomalous event information that receives the operating mode judge module, provide scheduling scheme according to the scheduling scheme production method; And/or real-time follow-up scheduled for executing situation.Certainly, when the dispatcher finds that the pipe network system situation is undesired, also can calculate scheduling scheme thereby trigger the operation dispatching module through said human-machine interface module to operating mode judge module or scheduler module input anomalous event information.

The utility model can also comprise and also comprises the forecast model module; Said forecast model module is connected with real-time data base, relational database, human-machine interface module, scheduler module; Obtain data and the forecast model in the relational database in the real-time data base; Predicting the outcome of the product consumption of prediction energy medium, and said predicting the outcome is stored in relational database; This moment, said relation data library storage was used to predict the forecast model and the forecast model information of energy medium product consumption; Said forecast model information comprises the model parameter in pipe network equipment load and the energy medium product consumption relational model; The change calculations that said forecast model is used to calculate the anomalous event influence and when providing scheduling scheme, produces consumption through energy medium goes out the adjustment amount of load, thereby gives the dispatcher with prompting intuitively; Said forecast model is that the load and the energy medium of part pipe network equipment (mainly being process equipment) produced the relational model between the consumption, is used to predict the energy medium amount of the said equipment.For vapour system, prediction be exactly by-product or the amount that consumes steam.Concrete forecast model can adopt linear regression method or the modeling of thermodynamics mechanism method according to the actual conditions of equipment, can certainly adopt other method modeling.Through human-machine interface module to the relevant parameter of said forecast model block configuration; The real time data of using real-time data base to obtain; The module that is scheduled is used for calculating section anomalous event (mainly being the technology trouble anomalous event) influence; And when providing scheduling scheme according to the energy medium amount desired value of being calculated, in conjunction with said forecast model, providing load adjustment desired value.At this moment; After said scheduler module is accepted the anomalous event information of operating mode judge module transmission; At first judge whether new anomalous event, obtain real-time traffic data, regulating measure information and anomalous event scheduling rule information then, and combine energy medium to produce the consumption forecast model; Use above-mentioned scheduling scheme production method to provide scheduling scheme, and/or real-time follow-up scheduled for executing situation.

Have in the forecast model module under the situation of memory function or storage unit; Said forecast model module is connected with real-time data base, human-machine interface module, scheduler module; Storage forecast model and forecast model information are according to predicting the outcome of the product consumption of forecast model prediction and storage energy medium; Said forecast model information is identical with foregoing description with the content and the function of said forecast model.After said scheduler module is accepted the anomalous event information of operating mode judge module transmission; At first judge whether new anomalous event; Obtain real-time traffic data, regulating measure information and anomalous event scheduling rule information then; And combine energy medium to produce the consumption forecast model, use above-mentioned scheduling scheme production method to provide scheduling scheme, and/or real-time follow-up scheduled for executing situation.

Therefore; Preferably; The full operating mode dispatching system of steam can comprise that preferably human-machine interface module, database (comprise real-time data base; Or comprise real-time data base and relational database), operating mode judge module, energy medium produce consumption forecast model and scheduler module; Shown in Fig. 4 b (having relational database) and Fig. 4 d (not having relational database), and realized that configuration adjustment unit and steam pipe system, configuration energy medium produce consumption forecast model, configuration adjustment means, Configuration events information, configuration schedules Rule Information, provide functions such as scheduling scheme, scheduled for executing tracking situation.

The dispatching system of above-mentioned process industry pipe network system is not limited to vapour system, can also comprise other pipe network system, and such as coal gas system, industrial water system (comprising chilled water, recirculated water etc.), the dispatching system that Device in Gas system etc. dispatches.

Dispatching system with the process industry vapour system is an example, and its each function can be as shown in Figure 5.

Function according to said dispatching system can be divided into two types: configuration feature and scheduling feature.

Configuration feature comprises that configuration adjustment steam pipe system and steam unit, configuration steam produce consumption forecast model, configuration adjustment means, Configuration events information, configuration rule information;

Scheduling feature comprises that providing scheduling scheme and scheduled for executing follows the tracks of.Scheduling feature is by operating mode judge module and scheduler module and combine steam product consumption forecast model and database parameter to realize.

According to a kind of dispatching method of the dispatching system of above-mentioned process industry pipe network system, its overall work flow process is as shown in Figure 6.

Said dispatching method is exactly to generate corresponding scheduling scheme according to concrete anomalous event, makes to make pipe network reach balance again through carrying out said scheduling scheme, and promptly ductwork pressure, temperature stabilization are at normal value.Therefore can suppose that preceding equilibrium state and basic identical through ductwork pressure, the temperature of dispatching the equilibrium state that reaches takes place anomalous event.So the valve position that the anomalous event of the valves such as reduction valve at atmospheric valve, pressure and temperature reducing station takes place after preceding and the scheduling changes with the relation of energy medium flow and can represent with the inviscid flow flow characteristic according to valve types.As a preferred embodiment, below introduce the dispatching method that is used for vapour system with operating mode arbitration functions and steam prediction, may further comprise the steps:

Step 1) configuration pipe network information, pipe network equipment information, anomalous event information, regulating measure information and scheduling rule information, said anomalous event information comprises the computing method of anomalous event determination methods and anomalous event influence;

Configuration steam pipe system and regulon function are used to dispose steam pipe system information, like information such as pipe network title, pipe network vapor (steam) temperature, pipe network vapor pressures; Because regulon is to be used to the pipe network equipment dispatching or regulate; Therefore dispose the essential information that pipe network information also comprises each steam regulation unit on the configuration pipe network, produce consumption forecast model title information such as (mainly being each process steam regulon) like pressure rating, regulating degree bound and pairing steam.

Configuration steam produces consumption forecast model function and is used for disposing each technology product produces the consumption relational model with vapour unit load and steam model parameter;

Configuration adjustment means function is used for type of action, priority of configuration adjustment means etc.;

The Configuration events informational function is used for the computing method that influence type, events affecting of Configuration events and the determination methods of incident;

The configuration rule informational function is used to dispose pairing regulating measure of concrete incident and regulated quantity, provides scheduling scheme according to rule when being used for the incident generation;

After parameter configuration is accomplished, the scheduling feature that the steam dispatcher of enterprise just can using system.Generate the scheduling scheme function and be used for combining priority to provide and quantize or regulating measure combination qualitatively, and, be shown to the user with different forms according to the difference of scheduling scheme through rule.The scheduled for executing following function is followed the tracks of its implementation status to the scheduling scheme that quantizes.

Introduce configuration feature below in detail.Configuration feature comprises that configuration adjustment steam pipe system and steam unit, configuration steam produce consumption forecast model, configuration adjustment means, Configuration events information, configuration rule information

1-1) configuration pipe network and regulon

1. steam pipe system

The configuration parameter of pipe network comprises essential informations such as pipe network title, pipe network vapor pressure, pipe network vapor (steam) temperature.

2. boiler

The configuration information of boiler comprises pressure rating, load bound, measuring instrument, state etc., and is as shown in table 1:

Table 1 boiler configuration information table

Property Name	Explanation
		Affiliated pipe network
The boiler operatiopn mode	Constant load whether
		The load lower limit
Upper load limit
		The measuring instrument item
Current running status	Can be set at: operation, subsequent use, maintenance

3. steam turbine (being turbine)

The configuration information of steam turbine comprises the drawing gas of steam turbine, steam discharge type, the pressure rating that draw gas, steam discharge belongs to respectively, and steam flow instrument item, equipment state etc., as shown in table 2:

Table 2 steam turbine configuration information table

For the technology steam turbine, owing to have funtcional relationship between the load of slave equipment and the quantity of steam, therefore also need expand its configuration information, as shown in table 3:

Table 3 technology steam turbine is expanded information table

4. pressure and temperature reducing station

The configuration information at pressure and temperature reducing station comprises that one-level steam place pressure rating, second steam belong to the inviscid flow flow characteristic of pressure rating, steam parameter instrument item, reduction valve, equipment state etc., its configuration information table such as table 4:

Table 4 pressure and temperature reducing station configuration information table

Property Name	Explanation
		Pipe network under the one-level steam
One-level steam measurer table item	Manometer
		Second steam measuring instrument item	Thermometric instrument, flow instrument
Desuperheating water instrument item
		One-level steam flow lower limit
The one-level steam flow upper limit
		Equipment state	Operation, off-duty

5. atmospheric valve

The configuration information of atmospheric valve comprises the inviscid flow flow characteristic of place pressure rating, the emptying upper limit, instrument item, atmospheric valve etc., its configuration information table such as table 5:

Table 5 atmospheric valve configuration information table

Property Name	Explanation
		Affiliated pipe network
Ductwork pressure instrument item
		Maximum emptying amount	Design load
Equipment state	Operation, off-duty

6. technique unit

The configuration information of technique unit comprises that affiliated pipe network, product consumption steam characteristic, the instrument item that characterizes load, steam produce consumption forecast model title etc., its configuration information table such as table 6:

Table 6 technique unit configuration information table

1-2) configuration steam produces the consumption forecast model

Configuration steam produces the consumption forecast model and is used for disposing each technology product produces the consumption relational model with vapour unit load and steam model parameter.Steam produces the change calculations that the consumption forecast model is used for when providing scheme producing through steam consumption and goes out the adjustment amount of load, thereby gives the dispatcher with prompting intuitively.The information of forecast model exists in tables of data 7, table 8 and the table 9:

Table 7 prediction model parameters information table

Attribute	Explanation
		The unit title
Types of models	Linear model; Nonlinear model
		Vapour steams/consumes	Steam; Consumption vapour
Model modification method	Automatically revise; The artificial correction
		PARAMETERS IN THE LINEAR MODEL
The nonlinear model title	External function

Table 8 forecast model variable information table

Property Name	Explanation
		The steaming plant numbering
The variable item
		I/O	Input variable; Output variable

Table 9 Model Distinguish information table

Property Name	Explanation
		The steaming plant numbering
The model prediction error threshold
		The modelling verification cycle
Identification Data length

1-3) configuration adjustment means

Institute's information configured comprises the effect of title, type of action, priority and regulating measure thereof of title, the regulon of regulating measure.Scheduler module is used the effect of this information calculations regulon, specific configuration information such as table 10:

Table 10 regulating measure information table

Attribute	Explanation
		Regulating measure	Regulating measure
Regulon	Equipment operation operation combination the workshop
		Type of action	The action of regulon (plus-minus load etc.)
Effect	To steam deficiency/steam surplus/pipe network adjustment
		Priority	Priority by be made as 1 from high to low, 2...
Available condition	Logical expression
		Incident whether	More automatically generate with the incident title, be used to judge whether new events

1-4) Configuration events information

The event information that is disposed comprises the computing method that influence type, events affecting of event type title, incident title, event type and incident.Operating mode judge module and scheduler module are used this information decision event to take place and are calculated events affecting, and detailed configuration information is seen table 11 and table 12:

Table 11 incident is judged information table

Attribute	Explanation
		The incident title	Concrete incident title
Automatically judge	Can judge automatically
		Name variable	The name variable that decision event is required
Judge symbol	Judgement symbol with correlation data relatively the time (greater than, less than, equal)
		Judgment data	Correlation data
Logical symbol

Table 12 events affecting computing information table

Attribute	Explanation
		The incident title	Concrete incident title
Influence type	Cause steam deficiency or steam superfluous
		Pressure rating	The pressure rating that the incident generation is influenced
Name variable	Calculate the name variable that events affecting is used
		Linear coefficient	Calculate with linear representation, linear coefficient refers to the coefficient before the variable

1-5) configuration rule information

Configuration rule function institute information configured comprises the regulon that needs action after incident title, incident take place, regulates action, regulated quantity etc.Scheduler module generates scheduling scheme according to the Rule Information in this configuration.Specific configuration information is seen table 13:

Table 13 Rule Information table

Attribute	Explanation
		The incident title	Can be concrete incident title, also can be a certain event type title
Regulon	Equipment/operation/operation combination/workshop
		Regulate action	The action of regulon (plus-minus load etc.)
Regulated quantity	To steam deficiency/steam surplus/pipe network adjustment

After parameter configuration is accomplished, the scheduling feature that the steam dispatcher of enterprise just can using system.The execution flow process of scheduling feature is as shown in Figure 7:

As shown in Figure 7, the execution flow process of whole scheduling feature can be divided into four parts: scheduling triggers, trigger message is handled, generate scheduling scheme and scheduled for executing is followed the tracks of.

Step 2) scheduling triggers

Scheduling triggers has automatic judgement triggering or user's manual triggers dual mode.

Automatically trigger and be meant that system judges whether that automatically event occurs, is realized by the operating mode judge module.The operating mode judge module obtains the vapour system real time data through database, and the incident that combines to be disposed judges whether the automatic decision event of information takes place, and event information is sent to scheduler module, is handled accordingly by it.

The incident that some can't be judged automatically, like technology trouble, process system scheduled overhaul etc., can be by user's manual triggers.

Step 3) is dispatched said anomalous event information, judges that at first whether the pipe network mode bit is in dispatch state; If the pipe network mode bit is in not dispatch state, then get into step 4); If the pipe network mode bit is in dispatch state, whether newly then that said anomalous event is related with said anomalous event anomalous event is tabulated relatively and then is judged the corresponding anomalous event of said anomalous event information anomalous event; The related anomalous event tabulation of said anomalous event is meant the tabulation of the anomalous event that execution caused of the scheduling scheme of certain anomalous event; Said new anomalous event is meant that de novo anomalous event is not by the caused anomalous event of the scheduling of a last anomalous event, is not present in the related anomalous event tabulation of said anomalous event when pipe network system during in dispatch state; If said anomalous event is new anomalous event, then get into step 4); Otherwise, get into step 5).The scheduling scheme of incident is the set that steaming plant is regulated dbjective state, and the dbjective state of these steaming plants also possibly be an incident.

With certain enterprise is example, and the high-pressure boiler A that supposes vapour system jumps in the scheduling scheme of car and comprises that high pressure turbine B stops, and high pressure turbine B to stop also be an incident.Then when in the scheduling process of high-pressure boiler A parking incident, when high pressure turbine B parking incident took place again, system thought that this is that scheduling by boiler A parking incident causes, does not cause new scheduling.

New events just is meant when vapour system during in dispatch state, and de novo is not the incident that the scheduling by a last incident causes.

When a certain incident output scheduling scheme, scheduler module is changed to " in the scheduling " with the state of vapour system, generates " tabulation of scheduling correlating event " simultaneously, promptly because the list of thing that this event scheduling can cause.When trigger event arrives; If vapour system is in " in the scheduling " state, judge at first that then this trigger event is whether in " tabulation of scheduling correlating event ", if then do not processing; If do not explaining that then this incident is " new events ", get into the scheduling scheme stage that generates.If vapour system is in " normally " state, then this trigger event also is " new events ".

Step 4) generates scheduling scheme

The function that generates scheduling scheme is realized by scheduler module.When judging that trigger event is new events, scheduler module generates corresponding scheduling scheme according to this trigger event information.

The simple process that generates scheduling scheme is following: at first read event configuration information from database, calculate events affecting X according to the events affecting computing method _IncidentRead rule configuration information and regulating measure configuration information afterwards, computation rule effect Y _RuleWith priority effect Y _Priority, generate and the output scheduling scheme according to above-mentioned scheduling scheme production method.In the time of the output scheduling scheme, generate the related anomalous event tabulation of said anomalous event, and the pipe network mode bit is made as dispatch state.

The step 5) scheduled for executing is followed the tracks of

The scheduled for executing following function is realized by scheduler module equally.The real-time status that scheduler module periodically or is randomly obtained each steaming plant from database with its with scheduling scheme the dbjective state of equipment contrast, and/or comparing result is shown to human-machine interface module; And/or judge according to real time data whether ductwork pressure, temperature be stable.When two state consistencies and/or when ductwork pressure, temperature stabilization, prompting dispatcher scheduling is accomplished.After scheduling was accomplished, scheduler module was changed to not dispatch state with the state of vapour system.Or set according to actual conditions by the dispatcher and to have accomplished scheduling, judge that then scheduling accomplishes.

Should be pointed out that the above embodiment can make those skilled in the art more comprehensively understand the utility model, but limit the utility model never in any form.Therefore; Although this instructions has carried out detailed explanation with reference to accompanying drawing and embodiment to the utility model; But, it will be appreciated by those skilled in the art that still and can make amendment or be equal to replacement the utility model; And all do not break away from the technical scheme and the improvement thereof of the spirit and the scope of the utility model, and it all should be encompassed in the middle of the protection model state of the utility model patent.

Claims (8)

1. the dispatching system of a process industry pipe network system comprises real-time data base, relational database, human-machine interface module, scheduler module, and the function of each several part is following:

Human-machine interface module links to each other with real-time data base, relational database, scheduler module; In order to check the real time data in the real-time data base; Check the scheduling scheme in the relational database, and, send instruction to scheduler module to relational database configuration and/or modification parameter;

Relational database links to each other with human-machine interface module, scheduler module, and storage is by the parameter of human-machine interface module configuration and/or modification;

Real-time data base is connected with human-machine interface module, scheduler module and pipe network system actual production data, and the actual production data of storage pipe network system provide real time data according to the requirement of each module;

Scheduler module links to each other with real-time data base, relational database and human-machine interface module; After satisfying trigger condition, obtain anomalous event information, scheduling rule information and regulating measure information in the relational database, calculate the anomalous event influence, provide scheduling scheme according to the scheduling scheme production method in conjunction with the real time data in the real-time data base; And/or real-time follow-up scheduled for executing situation; Said trigger condition comprises that the dispatcher sends dispatch command through human-machine interface module to scheduler module.

2. the dispatching system of process industry pipe network system according to claim 1 is characterized in that, also comprises the operating mode judge module, and said operating mode judge module links to each other with human-machine interface module, real-time data base, relational database and scheduler module; Said operating mode judge module is according to the anomalous event determination methods in the anomalous event information that disposes in the relational database; Obtain real time data from real-time data base; Automatically judged whether that anomalous event takes place; When anomalous event takes place, anomalous event information is sent to scheduler module, trigger and calculate scheduling scheme; Perhaps receive the manual activation anomalous event information of human-machine interface module, and anomalous event information is sent to scheduler module, trigger and calculate scheduling scheme;

Said scheduler module is after the anomalous event information that receives the operating mode judge module; Obtain anomalous event information, scheduling rule information and regulating measure information in the relational database; Calculate the anomalous event influence in conjunction with the real time data in the real-time data base, provide scheduling scheme according to the scheduling scheme production method; And/or real-time follow-up scheduled for executing situation.

3. the dispatching system of process industry pipe network system according to claim 1 and 2; It is characterized in that; Also comprise the forecast model module, said forecast model module is connected with real-time data base, relational database, human-machine interface module, scheduler module, obtains data and the forecast model in the relational database in the real-time data base; Predicting the outcome of the product consumption of prediction energy medium, and said predicting the outcome is stored in relational database;

Said relation data library storage is used to predict the forecast model and the forecast model information of energy medium product consumption; The change calculations that said forecast model is used to calculate the anomalous event influence and when providing scheduling scheme, produces consumption through energy medium goes out the adjustment amount of load;

Said scheduler module combines the real time data in the real-time data base to calculate the anomalous event influence with the forecast model that is stored in the relational database, provides scheduling scheme according to the scheduling scheme production method; And/or real-time follow-up scheduled for executing situation.

4. the dispatching system of a process industry pipe network system comprises real-time data base, human-machine interface module, scheduler module, and the function of each several part is following:

Human-machine interface module links to each other with real-time data base, scheduler module; In order to check the real time data in the real-time data base; Check the scheduling scheme in the scheduler module, to the configuration of real-time data base and/or scheduler module and/or revise parameter, and/or send instruction to scheduler module;

Real-time data base is connected with human-machine interface module, scheduler module and pipe network system actual production data, the actual production data of storage pipe network system, and pipe network information and/or pipe network equipment information provide real time data according to the requirement of each module;

Scheduler module links to each other with real-time data base, human-machine interface module; Storage anomalous event information, pipe network mode bit, scheduling rule information and regulating measure information; After satisfying trigger condition, combine the real time data in the real-time data base to calculate the anomalous event influence,, provide and the memory scheduling scheme according to the scheduling scheme production method in conjunction with scheduling rule information and regulating measure information, and/or real-time follow-up scheduled for executing situation; Whether said pipe network mode bit is in order to characterize pipe network in dispatch state; Said trigger condition comprises that the dispatcher sends dispatch command through human-machine interface module to scheduler module.

5. the dispatching system of process industry pipe network system according to claim 4 is characterized in that, also comprises the operating mode judge module, and said operating mode judge module links to each other with human-machine interface module, real-time data base and scheduler module; Said operating mode judge module is according to the anomalous event determination methods in the anomalous event information that disposes in the scheduler module; Obtain real time data from real-time data base; Automatically judged whether that anomalous event takes place; When anomalous event takes place, anomalous event information is sent to scheduler module, trigger and calculate scheduling scheme; Perhaps receive the manual activation anomalous event information of human-machine interface module, and anomalous event information is sent to scheduler module, trigger and calculate scheduling scheme;

Said scheduler module is calculated the anomalous event influence in conjunction with the real time data in the real-time data base after the anomalous event information that receives the operating mode judge module, provide scheduling scheme according to the scheduling scheme production method.

6. according to the dispatching system of claim 4 or 5 described process industry pipe network systems; It is characterized in that; Also comprise the forecast model module; Said forecast model module is connected with real-time data base, human-machine interface module, scheduler module, and storage forecast model and forecast model information are according to predicting the outcome of the product consumption of forecast model prediction and storage energy medium; The change calculations that said forecast model is used to calculate the anomalous event influence and when providing scheduling scheme, produces consumption through energy medium goes out the adjustment amount of load, thereby gives the dispatcher with prompting intuitively;

The real time data in the said scheduler module combination real-time data base and the forecast model of forecast model module calculate the anomalous event influence, provide scheduling scheme according to the scheduling scheme production method; And/or real-time follow-up scheduled for executing situation.

7. a process industry pipe network system is characterized in that, said pipe network system comprises the dispatching system of the described pipe network system of one of claim 1 to 6.

8. process industry pipe network system according to claim 8 is characterized in that, said pipe network system is a vapour system.

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