CN112678893B - Method and device for setting interval time of putting deoxidizing agent into boiler - Google Patents
Method and device for setting interval time of putting deoxidizing agent into boiler Download PDFInfo
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Abstract
The invention is suitable for the technical field of energy, and provides a method and a device for setting the dosing interval time of a boiler deoxidization agent, wherein the method comprises the following steps: calculating a first unit consumption of the boiler based on the current agent feeding interval time of the boiler; acquiring real-time dissolved oxygen content obtained by detecting boiler feed water; adjusting the current medicament feeding interval time of the boiler based on the real-time dissolved oxygen content; calculating a second unit consumption of the boiler at the adjusted dosing interval time; and determining the medicament administration interval time corresponding to the minimum unit consumption as the optimal medicament administration interval time based on the first unit consumption and the second unit consumption. By setting the reasonable medicament feeding interval time, the invention provides scientific guidance for the operation of a specific industrial boiler, improves the deoxidization efficiency, reduces the steam consumption and the steam exhaust loss of the deaerator, saves the cost of deoxidization medicament, thereby achieving the effects of safe operation of equipment, energy conservation and consumption reduction.
Description
Technical Field
The invention belongs to the technical field of energy, and particularly relates to a method and a device for setting the interval time of putting deoxidizing agents into a boiler.
Background
In the process of boiler feed water treatment, oxygen removal is a very critical link. Oxygen is a main corrosive substance of a boiler water supply system, oxygen in the water supply system is required to be rapidly removed, otherwise, the oxygen can corrode the water supply system and parts of the boiler, iron oxide which is a corrosive substance can enter the boiler and deposit or attach on the wall and the heated surface of the boiler to form indissolvable and badly heat-conducting iron scale, and the corroded iron scale can cause pitting on the inner wall of a pipeline and increase the resistance coefficient. When the pipeline is seriously corroded, even pipeline explosion accidents can happen. The national regulation states that a steam boiler with the evaporation capacity of more than or equal to 2 tons per hour and a hot water boiler with the water temperature of more than or equal to 95 ℃ are required to remove oxygen.
The currently used methods for removing oxygen from boiler feed water mainly include thermal oxygen removal and chemical oxygen removal. Chemical deoxidization reaches the mesh of deoxidization through throwing into the feedwater deoxidization medicament, and the medicament of chemical deoxidization is put in the interval time and is confirmed through experience mostly at present, lacks certain science, and the medicament is put in the interval time ineligibility of time and can lead to the waste of deoxidization medicament or deoxidization inefficiency.
Disclosure of Invention
In view of the above, the present invention provides a method and a device for setting an interval time between doses of a boiler deoxygenating agent, so as to solve the problem in the prior art that the deoxygenating agent is wasted or the deoxygenating efficiency is low due to unreasonable interval time between doses.
In a first aspect of the embodiments of the present invention, a method for setting an interval time between doses of a boiler deoxygenating agent is provided, including:
calculating a first unit consumption of the boiler based on the current agent putting interval time of the boiler, wherein the unit consumption is equal to the ratio of the total operation cost to the effective steam production amount;
acquiring real-time dissolved oxygen content obtained by detecting boiler feed water;
adjusting the current medicament feeding interval time of the boiler based on the real-time dissolved oxygen content;
calculating a second unit consumption of the boiler at the adjusted medicament dosing interval time, wherein the unit consumption is equal to a ratio of the total operation cost to the effective steam production amount;
and determining the medicament administration interval time corresponding to the minimum unit consumption as the optimal medicament administration interval time based on the first unit consumption and the second unit consumption.
In some embodiments, before obtaining the real-time dissolved oxygen content detected from the boiler feed water, the method further includes: and setting an oxygen content standard threshold.
In some embodiments, adjusting the current dosing interval of the boiler based on the real-time dissolved oxygen content specifically comprises:
comparing the real-time dissolved oxygen content with the oxygen content standard-reaching threshold value;
if the real-time dissolved oxygen content is less than the oxygen content standard-reaching threshold, prolonging the medicament feeding interval time;
if the real-time dissolved oxygen content is larger than the oxygen content standard-reaching threshold, the medicament putting interval time is shortened.
In some embodiments, determining, based on the first unit consumption and the second unit consumption, the medicament administration interval corresponding to the minimum unit consumption as the optimal medicament administration interval specifically includes:
comparing the first unit consumption and the second unit consumption;
if the first unit consumption is larger than the second unit consumption, prolonging the medicament putting interval time, and returning to the step to calculate the first unit consumption of the boiler based on the current medicament putting interval time of the boiler;
and if the first unit consumption is smaller than the second unit consumption, determining that the medicament administration interval time corresponding to the first unit consumption is the optimal medicament administration interval time.
In some embodiments, calculating the first consumption of the boiler based on the current dosing interval time of the boiler specifically comprises:
acquiring a main steam flow, a self-consumption steam flow, a total fuel consumption value and a total chemical consumption dosage value of the boiler based on the current chemical feeding interval time of the boiler;
calculating a first unit consumption of the boiler based on the main steam flow, the self-consumed steam amount, the total fuel consumption amount value and the total chemical consumption amount value.
In some embodiments, calculating a first unit consumption of the boiler based on the main steam flow, the self-consumed steam amount, the total fuel consumption amount value, and the total chemical consumption amount value comprises:
multiplying the total fuel consumption value by the unit price of the fuel to obtain the fuel cost;
multiplying the total medicine consumption value by the unit price of the medicine to obtain the cost of the medicine;
the fuel cost plus the medicament cost to obtain a total operating cost;
subtracting the self-consumption steam quantity from the main steam quantity to obtain an effective total steam production quantity value;
the total operating cost is divided by the effective total steam production value to yield a first unit consumption.
In some embodiments, before calculating the first unit consumption of the boiler based on the boiler initial agent dosing interval time, the method further comprises: setting the initial medicament administration interval time.
In a second aspect of the embodiments of the present invention, there is provided a device for setting an interval time between doses of a boiler deoxidization agent, including:
a first unit consumption calculation module configured to calculate a first unit consumption of the boiler based on a current agent dosing interval time of the boiler, the unit consumption being equal to a ratio of a total operating cost to an effective steam production amount;
the real-time dissolved oxygen content acquisition module is configured to acquire real-time dissolved oxygen content obtained by detecting boiler feed water;
a time adjustment module configured to adjust a current agent dosing interval time of the boiler based on the real-time dissolved oxygen content;
a second unit consumption calculation module configured to calculate a second unit consumption of the boiler at the adjusted dosing interval time, the unit consumption being equal to a ratio of a total operating cost to an effective steam production amount;
a best time determination module configured to determine a medicament administration interval time corresponding to a minimum unit consumption as a best medicament administration interval time based on the first unit consumption and the second unit consumption.
In a third aspect of the embodiments of the present invention, there is provided a terminal device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the method for setting the interval time between administrations of the boiler oxygen-removing agent when executing the computer program.
In a fourth aspect of the embodiments of the present invention, a computer-readable storage medium is provided, which stores a computer program, and the computer program, when executed by a processor, implements the steps of the method for setting the interval time between administrations of the boiler deoxygenating agent.
The method for setting the interval time between the feeding of the boiler deoxidization agent provided by the embodiment of the invention has the beneficial effects that at least: the method comprises the steps of firstly, calculating first unit consumption of a boiler based on the current medicament feeding interval time of the boiler; secondly, acquiring real-time dissolved oxygen content obtained by detecting boiler feed water; adjusting the current medicament feeding interval time of the boiler based on the real-time dissolved oxygen content again; then calculating a second unit consumption of the boiler under the adjusted medicament putting interval time; and finally, determining the medicament release interval time corresponding to the minimum unit consumption as the optimal medicament release interval time based on the first unit consumption and the second unit consumption. Aiming at the operation mode that the industrial boiler mainly uses thermal deoxidization and secondarily uses chemical deoxidization, the reasonable medicament adding interval time is set by calculating the unit consumption of the boiler and detecting the content of the dissolved oxygen in the feed water, thereby providing scientific guidance for the operation of the specific industrial boiler, improving the deoxidization efficiency, reducing the steam consumption and the steam exhaust loss of the deaerator, saving the cost of deoxidization medicament and further achieving the effects of safe operation of equipment, energy conservation and consumption reduction.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a flow chart of a method for setting the interval time between the doses of a boiler deoxygenating agent according to an embodiment of the present invention;
FIG. 2 is a flowchart of a process for calculating a first unit consumption of a boiler based on a current dosing interval of the boiler according to an embodiment of the present invention;
FIG. 3 is a flow chart for calculating a first unit consumption of a boiler based on the main steam flow, the consumed steam amount, the total fuel consumption value and the total chemical consumption amount value according to an embodiment of the present invention;
FIG. 4 is a flowchart of a device for setting the interval between the doses of a boiler deoxidization agent, provided by an embodiment of the present invention;
fig. 5 is a schematic diagram of a terminal device according to an embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention. Unless otherwise specified, the technical means used in the examples are conventional means well known to those skilled in the art.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
First embodiment
FIG. 1 is a flow chart of a method for setting the time interval between doses of a boiler oxygen scavenging agent in accordance with an embodiment of the present invention.
As shown in FIG. 1, the method for setting the interval time between the administrations of the boiler deoxygenating agent comprises the following steps S110-S150:
and S110, calculating the first unit consumption of the boiler based on the current agent putting interval time of the boiler.
In this embodiment, the method for setting the dosing interval of the boiler deoxygenation agent is used in an industrial boiler operation mode mainly using thermal deoxygenation and secondarily using chemical deoxygenation. The thermal deoxidization is that the boiler feed water is heated to the saturation temperature under the pressure of an atmospheric thermal deoxidizer by utilizing steam, the steam pressure of the water surface is close to the full pressure of the water surface, the partial pressure of various gases dissolved in the water is close to zero, the feed water does not have the capability of dissolving the gases, and the gases dissolved in the water can be separated out, so that the purposes of removing oxygen and protecting thermal equipment and pipelines are achieved. Chemical deoxidization aims at deoxidization by adding deoxidization agents into a boiler.
Specifically, the unit consumption is equal to the ratio of the total operating cost to the effective steam production. Under the current agent putting interval time, the total operation cost of the boiler comprises fuel cost and agent cost, the total operation cost of the boiler is divided by the effective total steam production value (the main steam flow minus the self-consumption steam quantity), and the total cost corresponding to the unit effective steam generation, namely the unit consumption of the boiler, is calculated.
Specifically, the first unit consumption of the boiler is calculated based on the current agent dosing interval time of the boiler, please refer to fig. 2, and fig. 2 is a flowchart illustrating a process for calculating the first unit consumption of the boiler based on the current agent dosing interval time of the boiler according to an embodiment of the present invention.
As shown in fig. 2, calculating the first unit consumption of the boiler based on the current dosing interval time of the boiler may specifically include the following steps S210 to S220:
s210, acquiring a main steam flow, a self-consumption steam quantity, a total fuel consumption quantity value and a total chemical consumption quantity value of the boiler based on the current chemical feeding interval time of the boiler;
s220, calculating first unit consumption of the boiler based on the main steam flow, the self-consumption steam quantity, the total fuel consumption value and the total chemical consumption dosage value.
Specifically, referring to fig. 3, the specific step of calculating the first unit consumption of the boiler based on the main steam flow, the consumed steam amount, the total consumed fuel amount value and the total consumed oxygen chemical amount value is shown, and fig. 3 is a flowchart of calculating the first unit consumption of the boiler based on the main steam flow, the consumed steam amount, the total consumed fuel amount value and the total consumed chemical amount value according to an embodiment of the present invention.
As shown in fig. 3, calculating the first unit consumption of the boiler based on the main steam flow, the self-consumed steam amount, the total fuel consumption value and the total chemical consumption amount value may specifically include the following steps S310 to S340:
s310, multiplying the total fuel consumption value by the unit price of the fuel to obtain the fuel cost;
s320, multiplying the total medicine consumption dosage value by the unit price of the medicine to obtain the cost of the medicine;
s330, adding the fuel cost and the medicament cost to obtain a total operation cost;
s340, subtracting the self-consumption steam quantity from the main steam flow to obtain an effective total steam production quantity value;
s350, dividing the total operation cost by the effective total steam production value to obtain a first unit consumption.
Specifically, before calculating the first unit consumption of the boiler based on the current agent dosing interval time of the boiler at step S110, the method further includes: setting the initial medicament administration interval time. The initial medicament feeding interval time can be determined according to experience, data of the boiler in a certain load floating range are obtained in the initial medicament feeding interval time, particularly, the effective total steam production value (the main steam flow minus the self-consumption steam quantity), the total fuel consumption value and the total oxygen medicament consumption value of the boiler in the time period are obtained in the certain load floating range of the boiler, and the fuel cost is calculated by multiplying the total fuel consumption value by the fuel unit price; calculating the cost of the medicament generated by multiplying the total consumption dosage value of the oxygen-removing medicament by the unit price of the oxygen-removing medicament; the total cost corresponding to the unit of effective steam generation, namely the unit consumption of the boiler, is calculated by adding the cost of the fuel and the cost of the medicament and then dividing the cost by the value of the effective total steam generation (the main steam flow minus the self-consumption steam quantity).
In this embodiment, the initial interval of dosing should be determined such that the feedwater dissolved oxygen content meets the standard feedwater dissolved oxygen content for the initial interval of dosing, which will be described later. The initial agent putting interval time can be selected to be 1 day through an empirical value as an agent putting period, and when the boiler is in a certain load floating range, the effective total steam production value (the main steam flow minus the self-consumption steam quantity), the total fuel consumption value and the total chemical consumption value of the boiler in the 1 day are collected to be used as the numerical value for calculating the unit consumption of the boiler. In particular, the first consumption of the boiler is calculated in this way based on the current dosing interval of the boiler, which is not further described.
S120: and acquiring the real-time dissolved oxygen content obtained by detecting the boiler feed water.
In this example, the quality of the feedwater is evaluated by detecting the real-time oxygen content of the feedwater solution. Before the step S120 of obtaining the real-time dissolved oxygen content detected from the boiler feed water, the method further includes: and setting an oxygen content standard threshold. In particular, the oxygen content compliance threshold may be set according to industry-specified standards for administration of oxygen-scavenging agents. And then detecting the content of the dissolved oxygen in the feed water based on the current medicament feeding interval time of the boiler.
S130: and adjusting the current medicament feeding interval time of the boiler based on the real-time dissolved oxygen content.
Specifically, adjusting the current chemical dosing interval time of the boiler based on the real-time dissolved oxygen content specifically includes: comparing the real-time dissolved oxygen content with the oxygen content standard-reaching threshold value; if the real-time dissolved oxygen content is less than the oxygen content standard-reaching threshold, prolonging the medicament feeding interval time; if the real-time dissolved oxygen content is larger than the oxygen content standard-reaching threshold, the medicament putting interval time is shortened.
S140: calculating a second unit consumption of the boiler at the adjusted agent dosing interval time.
Specifically, under the adjusted medicament feeding interval time, acquiring data of the boiler in a certain load floating range, particularly acquiring an effective total steam production value (the main steam flow minus the self-consumption steam quantity), a total fuel consumption value and a total oxygen removal medicament consumption value of the boiler in the certain load floating range of the boiler, and calculating the fuel cost through multiplying the total fuel consumption value by the unit price of the fuel; calculating the cost of the medicament generated by multiplying the total consumption dosage value of the oxygen-removing medicament by the unit price of the oxygen-removing medicament; the total cost corresponding to the unit of effective steam generation, namely the second unit consumption of the boiler is calculated by adding the cost of the fuel and the cost of the medicament and dividing the cost by the value of the effective total steam generation (the main steam flow minus the self-consumption steam quantity).
S150: and determining the medicament administration interval time corresponding to the minimum unit consumption as the optimal medicament administration interval time based on the first unit consumption and the second unit consumption.
Specifically, determining, based on the first unit consumption and the second unit consumption, that the medicament administration interval time corresponding to the minimum unit consumption is the optimal medicament administration interval time specifically includes: comparing the first unit consumption and the second unit consumption; if the first unit consumption is larger than the second unit consumption, prolonging the medicament putting interval time, and returning to the step S110 to calculate the first unit consumption of the boiler based on the current medicament putting interval time of the boiler; and if the first unit consumption is smaller than the second unit consumption, determining that the medicament administration interval time corresponding to the first unit consumption is the optimal medicament administration interval time.
In this embodiment, in order to determine the optimal dosing interval, the dosing interval needs to be adjusted repeatedly according to the dissolved oxygen content of the feedwater and the unit consumption change of the boiler, and steps S110 to S150 need to be repeated for each adjustment. Specifically, step 130, adjusting the current dosing interval time of the boiler based on the real-time dissolved oxygen content includes:
in step S150, if the second consumption is less than the first consumption, the oxygen-scavenging agent dosing interval is extended. Continuously detecting the dissolved oxygen content of the water supply after the medicament adding interval time is prolonged, judging the dissolved oxygen content of the water supply at the moment, and if the dissolved oxygen content of the water supply reaches the standard, prolonging the oxygen removal medicament adding interval time, wherein the prolonged medicament adding interval time is half of the last prolonged time; on the contrary, if the content of the dissolved oxygen in the supplied water does not reach the standard, the medicament feeding interval time is shortened, and similarly, the shortened medicament feeding interval time is half of the last prolonged time.
In order to ensure the accuracy of the set medicament administration interval time, when the first unit consumption and the second unit consumption of the boiler are judged for the first time, if the second unit consumption is greater than the first unit consumption, the medicament administration interval time is shortened, and at the moment, the shortened medicament administration interval time can be half of the change of the last medicament administration interval time. For example, the interval time between the doses is extended by 24 hours according to the judgment of the dissolved oxygen content of the feedwater, and if the second unit consumption is larger than the first unit consumption, the second unit consumption is larger than the first unit consumption and is shortened by 12 hours. Similarly, the interval time for the drug administration is shortened by 24 hours according to the judgment of the content of the dissolved oxygen in the feedwater, and the interval time for the drug administration is shortened by 12 hours if the second unit consumption is smaller than the first unit consumption. And acquiring the unit consumption of the boiler after the medicament dosing interval time is shortened, if the unit consumption of the boiler is reduced, repeating the steps S110-S150 until the unit consumption of the boiler is increased for the second time, and determining that the medicament dosing interval time at the moment is the optimal medicament dosing interval time.
It should be noted that, in this embodiment, when the time between the doses is adjusted, the time for the second time is half of the time for the last adjustment, and the time for the second time is not limited to half in practical application, and may be any value excluding 0 and 1 in the range of 0 to 1.
In the embodiment shown in fig. 1, the method obtains the unit consumption of the boiler at the chemical dosing interval time in the same boiler load floating interval range through the existing industrial boiler deoxidization chemical dosing interval time, and simultaneously detects the dissolved oxygen content of the boiler feed water at the chemical dosing interval time to obtain the quality of the feed water. Properly prolonging or shortening the chemical feeding interval time according to the quality condition of the feed water, acquiring the unit consumption of the boiler after the chemical feeding interval time is adjusted, and judging whether the unit consumption of the adjusted boiler is reduced compared with the unit consumption of the initially acquired boiler; if the unit consumption of the boiler is reduced, the interval time of the drug feeding is properly expanded; if the boiler consumption increases, the dosing interval is shortened appropriately, but the shortened dosing interval is still longer than the initial dosing interval. Detecting the content of dissolved oxygen in the feed water again, properly prolonging or shortening the medicament feeding interval time interval according to the quality condition of the feed water, then obtaining the unit consumption of the boiler after the medicament feeding interval time is adjusted, judging whether the unit consumption of the boiler is reduced compared with that before the adjustment, if the unit consumption of the boiler is reduced, properly expanding the medicament feeding interval time, and repeating the steps of detecting the quality of the feed water and adjusting the medicament feeding interval time; and if the unit consumption of the boiler is increased, stopping adjustment, and determining that the medicament administration interval time at the moment is the optimal medicament administration interval time. Through the scientificity and rationality of setting the interval time for putting the deoxidizing agents into the industrial boiler, the problems that the agent consumption is high, the deaerator is not adjusted timely, and the operating efficiency and the safety factor of the boiler are reduced due to unreasonable interval time for putting the deoxidizing agents into the industrial boiler are solved.
The method comprises the steps of firstly, calculating first unit consumption of a boiler based on the current medicament feeding interval time of the boiler; secondly, acquiring real-time dissolved oxygen content obtained by detecting boiler feed water; adjusting the current medicament feeding interval time of the boiler based on the real-time dissolved oxygen content again; then calculating a second unit consumption of the boiler under the adjusted medicament putting interval time; and finally, determining the medicament release interval time corresponding to the minimum unit consumption as the optimal medicament release interval time based on the first unit consumption and the second unit consumption. Aiming at the operation mode that the industrial boiler mainly uses thermal deoxidization and secondarily uses chemical deoxidization, the reasonable medicament adding interval time is set by calculating the unit consumption of the boiler and detecting the content of the dissolved oxygen in the feed water, thereby providing scientific guidance for the operation of the specific industrial boiler, improving the deoxidization efficiency, reducing the steam consumption and the steam exhaust loss of the deaerator, saving the cost of deoxidization medicament and further achieving the effects of safe operation of equipment, energy conservation and consumption reduction.
Second embodiment
Based on the same inventive concept as the method in the first embodiment, correspondingly, the embodiment also provides a device for setting the dosing interval time of the boiler deoxygenating agent.
FIG. 4 is a flow chart of the device for setting the dosing interval of the boiler deoxygenating agent provided by the invention.
As shown in fig. 4, the illustrated apparatus 4 includes: 41 a first unit consumption calculating module, 42 a real-time dissolved oxygen content obtaining module, 43 a time adjusting module, 44 a second unit consumption calculating module and 45 an optimal time determining module.
Wherein the first unit consumption calculation module is configured to calculate a first unit consumption of the boiler based on a current agent dosing interval time of the boiler, wherein the unit consumption is equal to a ratio of a total operation cost to an effective steam generation amount;
the real-time dissolved oxygen content acquisition module is configured to acquire real-time dissolved oxygen content obtained by detecting boiler feed water;
a time adjustment module configured to adjust a current agent dosing interval time of the boiler based on the real-time dissolved oxygen content;
a second unit consumption calculation module configured to calculate a second unit consumption of the boiler at the adjusted dosing interval time, the unit consumption being equal to a ratio of a total operating cost to an effective steam production amount;
a best time determination module configured to determine a medicament administration interval time corresponding to a minimum unit consumption as a best medicament administration interval time based on the first unit consumption and the second unit consumption.
In some exemplary embodiments, the first unit consumption calculating module specifically includes:
the data acquisition unit is used for acquiring a main steam flow, a self-consumption steam flow, a total fuel consumption value and a total chemical consumption dosage value of the boiler based on the current chemical feeding interval time of the boiler;
and the first unit consumption calculating unit is used for calculating the first unit consumption of the boiler based on the main steam flow, the self-consumed steam quantity, the total fuel consumption value and the total chemical consumption dosage value.
In some exemplary embodiments, the first unit consumption calculating unit specifically includes:
the fuel cost calculating subunit is used for multiplying the total fuel consumption value by the unit price of the fuel to obtain the fuel cost;
the medicament cost calculating subunit is used for multiplying the total medicament consumption dosage value by the medicament unit price to obtain the medicament cost;
a total operating cost calculating subunit, configured to add the fuel cost to the chemical cost to obtain a total operating cost;
the operator unit is used for subtracting the self-consumption steam quantity from the main steam quantity to obtain an effective total steam production quantity value;
a first unit consumption calculation subunit for dividing the total operating cost by the effective total steam production value to obtain a first unit consumption.
In some exemplary embodiments, the time adjustment module specifically includes:
the first comparison unit is used for comparing the real-time dissolved oxygen content with the oxygen content standard threshold value;
the first execution unit is used for prolonging the medicament feeding interval time if the real-time dissolved oxygen content is smaller than the oxygen content standard threshold;
and the second execution unit is used for shortening the medicament putting interval time if the real-time dissolved oxygen content is less than the oxygen content standard threshold.
In some exemplary embodiments, the optimal time determination module specifically includes:
a second comparing unit for comparing the first unit consumption and the second unit consumption;
the third execution unit is used for prolonging the medicament feeding interval time if the first unit consumption is larger than the second unit consumption, and returning to the step to calculate the first unit consumption of the boiler based on the current medicament feeding interval time of the boiler;
a fourth executing unit, configured to determine that the medicament administration interval time corresponding to the first unit consumption is the optimal medicament administration interval time if the first unit consumption is smaller than the second unit consumption.
In some exemplary embodiments, the apparatus further comprises:
the standard reaching threshold setting module is used for setting an oxygen content standard reaching threshold;
and the initial time setting module is used for setting the initial medicament putting interval time.
Third embodiment
The method and the device can be applied to terminal equipment such as desktop computers, notebooks, palm computers and cloud servers.
Fig. 5 is a schematic diagram of a terminal device to which the above method and apparatus can be applied according to an embodiment of the present invention, and as shown in the figure, the device 5 includes a memory 51, a processor 50, and a computer program 52 stored in the memory 51 and executable on the processor 50, and when the processor 50 executes the computer program 52, the steps of the method for setting the dosing interval of the boiler oxygen-removing agent are implemented. Such as the functions of the modules 41 to 45 shown in fig. 4.
The device 5 may be a computing device such as a cloud server. The terminal device may include, but is not limited to, the processor 50 and the memory 51. Those skilled in the art will appreciate that fig. 5 is merely an example of a device 5 and does not constitute a limitation of the terminal device 5 and may include more or fewer components than shown, or some components in combination, or different components, for example the terminal device may also include input output devices, network access devices, buses, etc.
The Processor 50 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 51 may be an internal storage unit of the device 5, such as a hard disk or a memory of the device 5. The memory 51 may also be an external storage device of the device 5, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), etc. provided on the device 5. Further, the memory 51 may also include both an internal storage unit and an external storage device of the device 5. The memory 51 is used for storing the computer program and other programs and data required by the terminal device. The memory 51 may also be used to temporarily store data that has been output or is to be output.
The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow in the method of the embodiments described above can be realized by a computer program, which can be stored in a computer-readable storage medium and can realize the steps of the embodiments of the methods described above when the computer program is executed by a processor. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.
Specifically, the present application further provides a computer-readable storage medium, which may be a computer-readable storage medium contained in the memory in the foregoing embodiments; or it may be a separate computer-readable storage medium not incorporated into the terminal device. The computer readable storage medium stores one or more computer programs:
a computer-readable storage medium comprising a computer program stored thereon which, when executed by a processor, performs the steps of the method for setting the interval between administrations of a boiler deoxygenating agent.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus/terminal device and method may be implemented in other ways. For example, the above-described embodiments of the apparatus/terminal device are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method embodiments may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (10)
1. A method for setting the interval time between the feeding of boiler deoxidization agents is characterized by comprising the following steps:
calculating a first unit consumption of the boiler based on the current agent putting interval time of the boiler, wherein the unit consumption is equal to the ratio of the total operation cost to the effective steam production amount;
acquiring real-time dissolved oxygen content obtained by detecting boiler feed water;
adjusting the current medicament feeding interval time of the boiler based on the real-time dissolved oxygen content;
calculating a second unit consumption of the boiler at the adjusted medicament dosing interval time, wherein the unit consumption is equal to a ratio of the total operation cost to the effective steam production amount;
and determining the medicament administration interval time corresponding to the minimum unit consumption as the optimal medicament administration interval time based on the first unit consumption and the second unit consumption.
2. The method of claim 1, wherein prior to obtaining the real-time dissolved oxygen content detected for the boiler feed water, further comprising:
and setting an oxygen content standard threshold.
3. The method according to claim 2, wherein adjusting a current dosing interval time of the boiler based on the real-time dissolved oxygen content comprises:
comparing the real-time dissolved oxygen content with the oxygen content standard-reaching threshold value;
if the real-time dissolved oxygen content is less than the oxygen content standard-reaching threshold, prolonging the medicament feeding interval time;
if the real-time dissolved oxygen content is larger than the oxygen content standard-reaching threshold, the medicament putting interval time is shortened.
4. The method according to claim 1, wherein determining the medicament delivery interval corresponding to the minimum consumption as the optimal medicament delivery interval based on the first consumption and the second consumption comprises:
comparing the first unit consumption and the second unit consumption;
if the first unit consumption is larger than the second unit consumption, prolonging the medicament putting interval time, and returning to the step to calculate the first unit consumption of the boiler based on the current medicament putting interval time of the boiler;
and if the first unit consumption is smaller than the second unit consumption, determining that the medicament administration interval time corresponding to the first unit consumption is the optimal medicament administration interval time.
5. The method of claim 1, wherein calculating a first boiler specific consumption based on a current dosing interval time of the boiler comprises:
acquiring a main steam flow, a self-consumption steam flow, a total fuel consumption value and a total chemical consumption dosage value of the boiler based on the current chemical feeding interval time of the boiler;
calculating a first unit consumption of the boiler based on the main steam flow, the self-consumed steam amount, the total fuel consumption amount value and the total chemical consumption amount value.
6. The method of claim 5, wherein calculating a first unit consumption of the boiler based on the main steam flow, the self-consumed steam amount, the total fuel consumption value, and the total chemical consumption amount value comprises:
multiplying the total fuel consumption value by the unit price of the fuel to obtain the fuel cost;
multiplying the total medicine consumption value by the unit price of the medicine to obtain the cost of the medicine;
the fuel cost plus the medicament cost to obtain a total operating cost;
subtracting the self-consumption steam quantity from the main steam quantity to obtain an effective total steam production quantity value;
the total operating cost is divided by the effective total steam production value to yield a first unit consumption.
7. The method of claim 1, wherein prior to calculating the first consumption of the boiler based on the boiler initial agent dosing interval time, further comprising:
setting the initial medicament administration interval time.
8. A setting device for the interval time between the administration of a deoxidizing agent to a boiler is characterized by comprising the following components:
a first unit consumption calculation module configured to calculate a first unit consumption of the boiler based on a current agent dosing interval time of the boiler, the unit consumption being equal to a ratio of a total operating cost to an effective steam production amount;
the real-time dissolved oxygen content acquisition module is configured to acquire real-time dissolved oxygen content obtained by detecting boiler feed water;
a time adjustment module configured to adjust a current agent dosing interval time of the boiler based on the real-time dissolved oxygen content;
a second unit consumption calculation module configured to calculate a second unit consumption of the boiler at the adjusted dosing interval time, the unit consumption being equal to a ratio of a total operating cost to an effective steam production amount;
a best time determination module configured to determine a medicament administration interval time corresponding to a minimum unit consumption as a best medicament administration interval time based on the first unit consumption and the second unit consumption.
9. A terminal device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any of claims 1 to 7 when executing the computer program.
10. A storage medium storing a computer program, characterized in that the computer program realizes the steps of the method according to any one of claims 1 to 7 when executed by a processor.
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| CN113393015A (en) * | 2021-04-27 | 2021-09-14 | 新奥数能科技有限公司 | Thermal power generating unit optimization method and device and computer readable medium |
| CN113379100A (en) * | 2021-04-30 | 2021-09-10 | 国能南京电力试验研究有限公司 | Setting method for thermal power generating unit desulfurization system and dust removal system collaborative optimization |
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