CN114778379A - Method and device for measuring steam content in desulfurized flue gas - Google Patents
Method and device for measuring steam content in desulfurized flue gas Download PDFInfo
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- CN114778379A CN114778379A CN202210417038.3A CN202210417038A CN114778379A CN 114778379 A CN114778379 A CN 114778379A CN 202210417038 A CN202210417038 A CN 202210417038A CN 114778379 A CN114778379 A CN 114778379A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/36—Analysing materials by measuring the density or specific gravity, e.g. determining quantity of moisture
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
Abstract
The embodiment of the invention provides a method and a device for measuring the content of water vapor in desulfurized flue gas, wherein the method comprises the following steps: generating the desulfurized dry flue gas according to the obtained flue gas oxygen content, the unit coal burning quantity, the coal quality parameter, the gaseous sulfur oxide ratio, the denitration efficiency and the desulfurization efficiency; generating the moisture content of the flue gas according to the acquired flue gas pressure and the acquired outlet flue gas temperature; generating the density of the flue gas according to the volume percentage of each component in the obtained desulfurized flue gas; the density of the flue gas, the amount of the desulfurized dry flue gas and the moisture content of the flue gas are calculated to generate the water vapor content in the desulfurized flue gas, so that water vapor extraction can be performed according to the water vapor content, and the water vapor content in the desulfurized flue gas can be measured, so that a good theoretical data basis is provided for subsequent engineering problems of flue gas whitening elimination, flue gas plume treatment, flue gas water extraction and the like.
Description
Technical Field
The invention relates to the technical field of environmental monitoring, in particular to a method and a device for measuring the content of water vapor in desulfurized flue gas.
Background
At present, wet desulphurization is one of effective measures for ultralow emission, but has the phenomena of large water consumption, chimney corrosion, easy occurrence of 'white smoke', 'gypsum rain' and the like. However, in the related art, no method for estimating the water vapor content in the desulfurized flue gas exists, and a good theoretical data basis cannot be provided for the subsequent engineering problems of flue gas whitening, flue gas plume treatment, flue gas water lifting and the like.
Disclosure of Invention
The invention aims to provide a method for measuring the content of water vapor in desulfurized flue gas, which can measure the content of water vapor in desulfurized flue gas, thereby providing a good theoretical data basis for subsequent engineering problems of flue gas whitening, smoke plume treatment, flue gas water extraction and the like. The invention also aims to provide a device for measuring the water vapor content in the desulfurized flue gas. It is a further object of this invention to provide such a computer readable medium. It is a further object of the present invention to provide a computer apparatus.
In order to achieve the above object, the present invention discloses a method for measuring the water vapor content in desulfurized flue gas, which comprises:
generating the desulfurized dry flue gas according to the obtained flue gas oxygen content, the unit coal burning quantity, the coal quality parameter, the gaseous sulfur oxide ratio, the denitration efficiency and the desulfurization efficiency;
generating a flue gas moisture content according to the acquired flue gas pressure and the acquired outlet flue gas temperature;
generating the density of the flue gas according to the volume percentage of each component in the obtained desulfurized flue gas;
and calculating the density of the flue gas, the amount of the desulfurized dry flue gas and the moisture content of the flue gas to generate the water vapor content in the desulfurized flue gas for water vapor extraction according to the water vapor content.
Preferably, according to the obtained oxygen content of the flue gas, the coal burning amount of the unit, the coal quality parameter, the proportion of the gaseous sulfur oxides, the denitration efficiency and the desulfurization efficiency, the dry flue gas amount after desulfurization is generated, which comprises the following steps:
generating a reference flue gas volume according to the oxygen content of the flue gas, the coal quality parameter, the gaseous sulfur oxide proportion, the denitration efficiency and the desulfurization efficiency;
and generating the desulfurized dry flue gas according to the reference flue gas amount and the unit coal burning amount.
Preferably, generating a reference flue gas volume according to the flue gas oxygen content, the coal quality parameter, the gaseous sulfur oxide ratio, the denitration efficiency and the desulfurization efficiency, comprises:
generating theoretical dry air quantity according to the coal quality parameters;
generating theoretical dry flue gas quantity according to theoretical dry air quantity, coal quality parameters, gaseous sulfur oxide proportion, denitration efficiency and desulfurization efficiency;
and generating the reference smoke amount according to the theoretical dry smoke amount, the theoretical dry air amount and the smoke oxygen content.
Preferably, generating the reference flue gas amount according to the theoretical dry flue gas amount, the theoretical dry air amount and the flue gas oxygen content comprises:
generating an excess air coefficient according to the oxygen content of the flue gas;
and generating a reference flue gas quantity according to the theoretical dry flue gas quantity, the theoretical dry air quantity and the excess air coefficient.
Preferably, the generating the moisture content of the flue gas according to the acquired pressure of the flue gas and the acquired temperature of the outlet flue gas comprises:
generating partial pressure of saturated steam according to the obtained outlet flue gas temperature through an antoin equation;
and generating the moisture content of the flue gas according to the partial pressure of the saturated water vapor and the pressure of the flue gas.
The invention also discloses a device for measuring the content of water vapor in the desulfurized flue gas, which comprises the following components:
the first generation unit is used for generating the desulfurized dry flue gas according to the acquired oxygen content of the flue gas, the coal burning quantity of the unit, the coal quality parameters, the gaseous sulfur oxide ratio, the denitration efficiency and the desulfurization efficiency;
the second generation unit is used for generating the moisture content of the flue gas according to the acquired flue gas pressure and the acquired outlet flue gas temperature;
the third generation unit is used for generating the smoke density according to the volume percentage of each component in the obtained desulfurized smoke;
and the measuring unit is used for calculating the density of the flue gas, the amount of the desulfurized dry flue gas and the moisture content of the flue gas to generate the water vapor content in the desulfurized flue gas so as to extract the water vapor according to the water vapor content.
Preferably, the first generation unit is specifically configured to generate a reference flue gas amount according to a flue gas oxygen content, a coal quality parameter, a gaseous sulfur oxide proportion, a denitration efficiency, and a desulfurization efficiency; and generating the desulfurized dry flue gas according to the reference flue gas amount and the unit coal burning amount.
Preferably, the second generating unit is specifically configured to generate the partial pressure of the saturated steam according to the acquired outlet flue gas temperature through an antoin equation; and generating the moisture content of the flue gas according to the partial pressure of the saturated water vapor and the pressure of the flue gas.
The invention also discloses a computer-readable medium, on which a computer program is stored which, when executed by a processor, implements a method as described above.
The invention also discloses a computer device comprising a memory for storing information comprising program instructions and a processor for controlling the execution of the program instructions, the processor implementing the method as described above when executing the program.
According to the obtained oxygen content of the flue gas, the coal burning quantity of the unit, the coal quality parameters, the gaseous sulfur oxide ratio, the denitration efficiency and the desulfurization efficiency, the desulfurized dry flue gas quantity is generated; generating the moisture content of the flue gas according to the acquired flue gas pressure and the acquired outlet flue gas temperature; generating the density of the flue gas according to the volume percentage of each component in the obtained desulfurized flue gas; the density of the flue gas, the amount of the desulfurized dry flue gas and the moisture content of the flue gas are calculated to generate the water vapor content in the desulfurized flue gas, so that water vapor extraction can be performed according to the water vapor content, and the water vapor content in the desulfurized flue gas can be measured, so that a good theoretical data basis is provided for subsequent engineering problems of flue gas whitening elimination, flue gas plume treatment, flue gas water extraction and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a flow chart of a method for measuring the water vapor content in desulfurized flue gas according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a device for measuring the water vapor content in desulfurized flue gas according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a computer device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In order to facilitate understanding of the technical solutions provided in the present application, the following first describes relevant contents of the technical solutions in the present application. At present, wet desulphurization is the most applied, the most mature technology and the highest efficiency flue gas desulphurization mode at present. The flue gas of the coal-fired unit is in a saturated wet flue gas state after desulfurization, and the temperature of the flue gas is between 45 and 60 ℃. The embodiment of the invention provides a method and a device for measuring the content of water vapor in desulfurized flue gas, which can measure the content of water vapor in desulfurized flue gas, so as to provide a good theoretical data basis for subsequent engineering problems of flue gas whitening, smoke plume treatment, flue gas water lifting and the like.
The following describes an implementation process of the method for measuring the water vapor content in desulfurized flue gas, which is provided by the embodiment of the present invention, by taking a measurement apparatus of the water vapor content in desulfurized flue gas as an example. It can be understood that the implementation subject of the method for measuring the water vapor content in the desulfurized flue gas provided by the embodiment of the invention includes, but is not limited to, the device for measuring the water vapor content in desulfurized flue gas.
Fig. 1 is a flowchart of a method for measuring the water vapor content in desulfurized flue gas according to an embodiment of the present invention, as shown in fig. 1, the method includes:
102, generating a flue gas moisture content according to the acquired flue gas pressure and the acquired outlet flue gas temperature.
And 103, generating the smoke density according to the volume percentage of each component in the obtained desulfurized smoke.
And 104, calculating the density of the flue gas, the amount of the desulfurized dry flue gas and the moisture content of the flue gas to generate the water vapor content in the desulfurized flue gas for water vapor extraction according to the water vapor content.
In the technical scheme provided by the embodiment of the invention, the dry flue gas amount after desulfurization is generated according to the acquired flue gas oxygen content, the unit coal burning amount, the coal quality parameter, the gaseous sulfur oxide ratio, the denitration efficiency and the desulfurization efficiency; generating a flue gas moisture content according to the acquired flue gas pressure and the acquired outlet flue gas temperature; generating the density of the flue gas according to the volume percentage of each component in the obtained desulfurized flue gas; the density of the flue gas, the amount of the desulfurized dry flue gas and the moisture content of the flue gas are calculated to generate the water vapor content in the desulfurized flue gas for water vapor extraction according to the water vapor content, and the water vapor content in the desulfurized flue gas can be measured, so that a good theoretical data basis is provided for subsequent engineering problems of white smoke elimination, smoke plume treatment, water extraction of the flue gas and the like.
The method for measuring the water vapor content in the desulfurized flue gas provided by the figure 1 specifically comprises the following steps:
step 201, generating a desulfurized dry flue gas according to the acquired oxygen content of the flue gas, the coal burning quantity of the unit, the coal quality parameters, the gaseous sulfur oxide ratio, the denitration efficiency and the desulfurization efficiency.
In the embodiment of the invention, each step is executed by a measuring device of the water vapor content.
In the embodiment of the present invention, the coal quality parameters include, but are not limited to, raw coal-based carbon content, raw coal-based sulfur content, raw coal-based hydrogen content, raw coal-based oxygen content, and raw coal-based nitrogen content, and the units of the coal quality parameters are percentage (%). It is worth noting that the coal quality parameters are obtained from industry standards, optionally national standard for classification of Chinese coal (GB 5751-86).
In the embodiment of the present invention, step 201 specifically includes:
and 2011, generating a reference flue gas volume according to the oxygen content of the flue gas, the coal quality parameter, the proportion of the gaseous sulfur oxides, the denitration efficiency and the desulfurization efficiency.
In the embodiment of the present invention, step 2011 specifically includes:
and step 1a, generating theoretical dry air quantity according to the coal quality parameters.
In particular, by
For raw coal base carbon content, raw coal baseCalculating the sulfur content, the raw coal-based hydrogen content and the raw coal oxygen content to generate theoretical dry air quantity, wherein CarIs the raw coal-based carbon content, SarIs the raw coal-based sulfur content, HarIs the raw coal-based hydrogen content, OarIs the raw coal basis oxygen content, V0 gkThe unit is the theoretical dry air quantity of flue gas flowing through a denitration, dust removal and desulfurization outlet after raw coal combustion in unit mass, and the unit is cubic meter per kilogram (m)3/kg)。
And step 1b, generating theoretical dry flue gas quantity according to theoretical dry air quantity, coal quality parameters, gaseous sulfur oxide ratio, denitration efficiency and desulfurization efficiency.
In the embodiment of the invention, the theoretical dry air quantity of the denitration efficiency and the desulfuration efficiency can be obtained by calculation in the step 1 a; the coal quality parameters can be obtained by inquiring an industrial standard; the gaseous sulfur oxide content, the denitration efficiency, and the desulfurization efficiency can be read from a dial of a Distributed Control System (DCS).
In particular, by
And calculating the content of raw coal-based carbon, the content of raw coal-based sulfur, the proportion of gaseous sulfur oxide, the desulfurization efficiency, the theoretical dry air quantity, the content of raw coal-based nitrogen and the denitration efficiency to generate the theoretical dry flue gas quantity. Wherein, CarIs the raw coal-based carbon content, SarIs the raw coal-based sulfur content, NarAs the raw coal-based nitrogen content, chi is the ratio of the gaseous sulfur oxides (dimensionless) after the raw coal is combusted, psi is the desulfurization efficiency, zeta is the denitration efficiency, V0 gkIs the theoretical dry air quantity V of flue gas flowing through a denitration, dust removal and desulfurization outlet after raw coal combustion in unit mass0 gyThe theoretical dry flue gas amount of flue gas flowing through a denitration, dedusting and desulfurization outlet after raw coal combustion of unit mass. Wherein the theoretical dry air quantity and the theoretical dry flue gas quantity are m3And/kg, the desulfurization efficiency and the denitration efficiency are all expressed in percentage by weight.
And 1c, generating a reference flue gas quantity according to the theoretical dry flue gas quantity, the theoretical dry air quantity and the flue gas oxygen content.
In particular, by
Generating an excess air coefficient according to the oxygen content of the flue gas, wherein O2Is the oxygen content of the flue gas at the desulfurization outlet, and the unit is percent; alpha is the excess air coefficient of the flue gas at the desulfurization outlet, and is dimensionless; by passing
Generating a reference flue gas quantity according to the theoretical dry flue gas quantity, the theoretical dry air quantity and the excess air coefficient, wherein alpha is the excess air coefficient of the flue gas at the desulfurization outlet, V0 gkIs the theoretical dry air quantity V of flue gas flowing through a denitration, dust removal and desulfurization outlet after raw coal combustion in unit mass0 gyIs the theoretical dry flue gas volume V of flue gas flowing through a denitration, dust removal and desulfurization outlet after raw coal combustion per unit massgyAs a baseline smoke volume, i.e.: the actual dry flue gas volume of flue gas flowing through a denitration, dust removal and desulfurization outlet after raw coal combustion in unit mass is m3/kg。
And step 2012, generating the desulfurized dry flue gas according to the reference flue gas amount and the unit coal combustion amount.
In the embodiment of the invention, the coal combustion amount B of the unit can be read from a DCS dial, and the unit of the coal combustion amount B of the unit is ton per hour (t/h).
In particular, by Ggy＝BVgy×103And calculating the reference flue gas quantity and the unit coal combustion quantity to generate the desulfurized dry flue gas quantity. Wherein B is the coal burning quantity of the unit, VgyAs a reference smoke gas amount, GgyThe dry flue gas amount after desulfurization.
It should be noted that the dry flue gas amount in the embodiment of the present invention is a dry flue gas amount in a standard state.
In summary, the formula involved in step 201 is integrated as follows:
wherein G isgyThe amount of dry flue gas after desulfurization, B the amount of coal fired by the unit, and CarIs the raw coal-based carbon content, SarIs the raw coal-based sulfur content, HarIs the raw coal-based hydrogen content, OarIs the raw coal oxygen content, NarChi is the ratio of the sulfur oxides in the gaseous state (dimensionless) after the raw coal is burned, psi is the desulfurization efficiency, and zeta is the denitration efficiency, for the raw coal-based nitrogen content.
And 202, generating the moisture content of the flue gas according to the acquired pressure of the flue gas and the temperature of the outlet flue gas.
In the embodiment of the present invention, step 202 specifically includes:
step 2021, generating partial pressure of saturated steam according to the obtained outlet flue gas temperature by an Antoine equation.
In the embodiment of the invention, the partial pressure of saturated steam within the temperature range of 0-200 ℃ can be obtained by solving the temperature of outlet flue gas through an Antoine equation. Wherein, the temperature of the outlet flue gas can be obtained by detecting through a temperature sensor.
In particular, by
T＝tyc+273.15, calculating the outlet flue gas temperature to generate the partial pressure of saturated steam. Wherein, tycIs the outlet flue gas temperature in degrees centigrade (deg.C); t is a temperature intermediate parameter with the unit of Kelvin (K); psIs the partial pressure of saturated water vapor in megapascals (MPa).
2022, generating the moisture content of the flue gas according to the partial pressure of the saturated water vapor and the pressure of the flue gas.
In the embodiment of the invention, the smoke pressure comprises the smoke near pressure and the ambient atmospheric pressure, and the smoke near pressure and the ambient atmospheric pressure can be read from the DCS dial plate and have the unit of MPa.
In particular, by
And calculating the partial pressure of the saturated water vapor, the near pressure of the flue gas and the ambient atmospheric pressure to generate the moisture content of the flue gas. Wherein, PsIs the partial pressure of saturated water vapour, PstIs the flue gas near pressure, PactAnd is the ambient atmospheric pressure, d is the flue gas moisture content in grams per kilogram (g/kg).
And 203, generating the smoke density according to the volume percentage of each component in the obtained desulfurized smoke.
In embodiments of the present invention, the desulfurized flue gas has a plurality of constituents, including but not limited to oxygen (O)2) Carbon dioxide (CO)2) Carbon monoxide (CO), sulfur dioxide (SO)2) Nitrogen (N)2) Nitrogen monoxide (NO).
In particular, the volume percentage of each component can be read from the DCS dial in%. By passing
And calculating the volume percentage of each component in the desulfurized flue gas to generate the density of the flue gas. Wherein rho is the density of the smoke and has a unit of kilogram per cubic meter (kg/m)3)；
Respectively is O in the desulfurized flue gas2、CO2、CO、SO2、N2Volume percent of NO.
According to the embodiment of the invention, the influence of water vapor can be discharged, and the smoke density in a standard state can be determined.
And 204, calculating the density of the flue gas, the amount of the desulfurized dry flue gas and the moisture content of the flue gas to generate the water vapor content in the desulfurized flue gas for water vapor extraction according to the water vapor content.
Specifically, by W ═ ρ Ggyd×10-6For the density of the flue gas,And (4) calculating the dry flue gas amount and the flue gas moisture content after desulfurization to obtain the water vapor content in the desulfurized flue gas. Wherein rho is the density of the flue gas, d is the moisture content of the flue gas, GgyAnd W is the dry flue gas amount after desulfurization, and the unit is ton per hour (t/h) of the water vapor content in the desulfurized flue gas.
In the embodiment of the invention, the steam content in the wet-method desulfurized flue gas is obtained through the calculation and measurement, so that the theoretical estimation can be favorably carried out in engineering problems of flue gas whitening elimination, flue gas plume treatment, flue gas water lifting and the like, and a reliable data basis is provided for subsequent research.
According to the technical scheme of the method for measuring the content of the water vapor in the desulfurized flue gas, the amount of the desulfurized dry flue gas is generated according to the obtained oxygen content of the flue gas, the unit coal combustion amount, the coal quality parameter, the gaseous sulfur oxide ratio, the denitration efficiency and the desulfurization efficiency; generating the moisture content of the flue gas according to the acquired flue gas pressure and the acquired outlet flue gas temperature; generating the density of the flue gas according to the volume percentage of each component in the obtained desulfurized flue gas; the density of the flue gas, the amount of the desulfurized dry flue gas and the moisture content of the flue gas are calculated to generate the water vapor content in the desulfurized flue gas, so that water vapor extraction can be performed according to the water vapor content, and the water vapor content in the desulfurized flue gas can be measured, so that a good theoretical data basis is provided for subsequent engineering problems of flue gas whitening elimination, flue gas plume treatment, flue gas water extraction and the like.
Fig. 2 is a schematic structural diagram of a device for measuring the water vapor content in desulfurized flue gas according to an embodiment of the present invention, the device is used for executing the above method for measuring the water vapor content in desulfurized flue gas, as shown in fig. 2, the device includes: a first generation unit 11, a second generation unit 12, a third generation unit 13, and a measurement unit 14.
The first generating unit 11 is configured to generate a desulfurized dry flue gas amount according to the acquired flue gas oxygen content, the unit coal-fired amount, the coal quality parameter, the gaseous sulfur oxide proportion, the denitration efficiency, and the desulfurization efficiency.
The second generating unit 12 is configured to generate a moisture content of the flue gas according to the acquired flue gas pressure and the acquired outlet flue gas temperature.
The third generating unit 13 is configured to generate a flue gas density according to the volume percentage of each component in the obtained desulfurized flue gas.
The measurement unit 14 is configured to calculate the flue gas density, the desulfurized dry flue gas amount, and the flue gas moisture content, and generate the water vapor content in the desulfurized flue gas, so as to perform water vapor extraction according to the water vapor content.
In the embodiment of the present invention, the first generating unit 11 is specifically configured to generate a reference flue gas amount according to a flue gas oxygen content, a coal quality parameter, a gaseous sulfur oxide ratio, a denitration efficiency, and a desulfurization efficiency; and generating the desulfurized dry flue gas according to the reference flue gas amount and the unit coal burning amount.
In the embodiment of the present invention, the first generating unit 11 is specifically configured to generate a theoretical dry air amount according to a coal quality parameter; generating theoretical dry flue gas quantity according to theoretical dry air quantity, coal quality parameters, gaseous sulfur oxide proportion, denitration efficiency and desulfurization efficiency; and generating the reference flue gas quantity according to the theoretical dry flue gas quantity, the theoretical dry air quantity and the flue gas oxygen content.
In the embodiment of the present invention, the first generating unit 11 is specifically configured to generate an excess air coefficient according to an oxygen content of flue gas; and generating the reference smoke amount according to the theoretical dry smoke amount, the theoretical dry air amount and the excess air coefficient.
In the embodiment of the present invention, the second generating unit 12 is specifically configured to generate the partial pressure of saturated steam according to the obtained outlet flue gas temperature by using an antoin equation; and generating the moisture content of the flue gas according to the partial pressure of the saturated steam and the pressure of the flue gas.
In the scheme of the embodiment of the invention, the amount of the desulfurized dry flue gas is generated according to the obtained oxygen content of the flue gas, the coal burning amount of the unit, the coal quality parameter, the proportion of the gaseous sulfur oxides, the denitration efficiency and the desulfurization efficiency; generating the moisture content of the flue gas according to the acquired flue gas pressure and the acquired outlet flue gas temperature; generating the density of the flue gas according to the volume percentage of each component in the obtained desulfurized flue gas; the density of the flue gas, the amount of the desulfurized dry flue gas and the moisture content of the flue gas are calculated to generate the water vapor content in the desulfurized flue gas, so that water vapor extraction can be performed according to the water vapor content, and the water vapor content in the desulfurized flue gas can be measured, so that a good theoretical data basis is provided for subsequent engineering problems of flue gas whitening elimination, flue gas plume treatment, flue gas water extraction and the like.
The systems, devices, modules or units illustrated in the above embodiments may be implemented by a computer chip or an entity, or by a product with certain functions. A typical implementation device is a computer device, which may be, for example, a personal computer, laptop computer, cellular telephone, camera phone, smart phone, personal digital assistant, media player, navigation device, email device, game console, tablet computer, wearable device, or a combination of any of these devices.
Embodiments of the present invention provide a computer device, including a memory and a processor, where the memory is used to store information including program instructions, and the processor is used to control the execution of the program instructions, and the program instructions are loaded and executed by the processor to implement the steps of the above-mentioned embodiments of the method for measuring the water vapor content in desulfurized flue gas, and the detailed description can refer to the above-mentioned embodiments of the method for measuring the water vapor content in desulfurized flue gas.
Referring now to FIG. 3, shown is a schematic diagram of a computer device 600 suitable for use in implementing embodiments of the present application.
As shown in fig. 3, the computer apparatus 600 includes a Central Processing Unit (CPU)601 which can perform various appropriate works and processes according to a program stored in a Read Only Memory (ROM)602 or a program loaded from a storage section 608 into a Random Access Memory (RAM)) 603. In the RAM603, various programs and data necessary for the operation of the computer apparatus 600 are also stored. The CPU601, ROM602, and RAM603 are connected to each other via a bus 604. An input/output (I/O) interface 605 is also connected to bus 604.
The following components are connected to the I/O interface 605: an input portion 606 including a keyboard, a mouse, and the like; an output portion 607 including a Cathode Ray Tube (CRT), a liquid crystal feedback (LCD), and the like, and a speaker and the like; a storage section 608 including a hard disk and the like; and a communication section 609 including a network interface card such as a LAN card, a modem, or the like. The communication section 609 performs communication processing via a network such as the internet. The driver 610 is also connected to the I/O interface 605 as needed. A removable medium 611 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is mounted on the drive 610 as necessary, so that a computer program read out therefrom is mounted as necessary on the storage section 608.
In particular, according to an embodiment of the present invention, the processes described above with reference to the flowcharts may be implemented as computer software programs. For example, embodiments of the invention include a computer program product comprising a computer program tangibly embodied on a machine-readable medium, the computer program comprising program code for performing the method illustrated in the flow chart. In such an embodiment, the computer program may be downloaded and installed from a network through the communication section 609, and/or installed from the removable medium 611.
Computer-readable media, including both permanent and non-permanent, removable and non-removable media, may implement the information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Disks (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
For convenience of description, the above devices are described as being divided into various units by function, and are described separately. Of course, the functionality of the units may be implemented in one or more software and/or hardware when implementing the present application.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
According to the technical scheme, the data acquisition, storage, use, processing and the like meet the relevant regulations of national laws and regulations.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The application may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. The application may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote computer storage media including memory storage devices.
All the embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. A method for measuring the content of water vapor in desulfurized flue gas, which is characterized by comprising the following steps:
generating the desulfurized dry flue gas according to the obtained flue gas oxygen content, the unit coal burning quantity, the coal quality parameter, the gaseous sulfur oxide ratio, the denitration efficiency and the desulfurization efficiency;
generating a flue gas moisture content according to the acquired flue gas pressure and the acquired outlet flue gas temperature;
generating the density of the flue gas according to the volume percentage of each component in the obtained desulfurized flue gas;
and calculating the density of the flue gas, the amount of the desulfurized dry flue gas and the moisture content of the flue gas to generate the content of the water vapor in the desulfurized flue gas for extracting the water vapor according to the content of the water vapor.
2. The method for measuring the water vapor content in the desulfurized flue gas according to claim 1, wherein the step of generating the desulfurized dry flue gas according to the obtained oxygen content of the flue gas, the unit coal combustion amount, the coal quality parameter, the gaseous sulfur oxide ratio, the denitration efficiency and the desulfurization efficiency comprises the steps of:
generating a reference flue gas volume according to the oxygen content of the flue gas, the coal quality parameters, the gaseous sulfur oxide ratio, the denitration efficiency and the desulfurization efficiency;
and generating the desulfurized dry flue gas according to the reference flue gas amount and the unit coal combustion amount.
3. The method for measuring the steam content in the desulfurized flue gas according to claim 2, wherein the generating of the reference flue gas amount according to the flue gas oxygen content, the coal quality parameter, the gaseous sulfur oxide content ratio, the denitration efficiency and the desulfurization efficiency comprises:
generating theoretical dry air quantity according to the coal quality parameters;
generating theoretical dry flue gas quantity according to the theoretical dry air quantity, coal quality parameters, gaseous sulfur oxide ratio, denitration efficiency and desulfurization efficiency;
and generating a reference flue gas quantity according to the theoretical dry flue gas quantity, the theoretical dry air quantity and the flue gas oxygen content.
4. The method for measuring the water vapor content in the desulfurized flue gas according to claim 3, wherein said generating a reference flue gas amount according to said theoretical dry flue gas amount, said theoretical dry air amount and the flue gas oxygen content comprises:
generating an excess air coefficient according to the oxygen content of the flue gas;
and generating the reference flue gas quantity according to the theoretical dry flue gas quantity, the theoretical dry air quantity and the excess air coefficient.
5. The method for measuring the water vapor content in the desulfurized flue gas according to claim 1, wherein the step of generating the flue gas moisture content according to the acquired flue gas pressure and the outlet flue gas temperature comprises the following steps:
generating partial pressure of saturated steam according to the obtained outlet flue gas temperature through an antoin equation;
and generating the moisture content of the flue gas according to the partial pressure of the saturated steam and the flue gas pressure.
6. A device for measuring the water vapor content in desulphurized flue gases, characterized in that it comprises:
the first generation unit is used for generating desulfurized dry flue gas according to the acquired oxygen content of the flue gas, the unit coal burning quantity, the coal quality parameter, the gaseous sulfur oxide proportion, the denitration efficiency and the desulfurization efficiency;
the second generation unit is used for generating the moisture content of the flue gas according to the acquired flue gas pressure and the acquired outlet flue gas temperature;
the third generation unit is used for generating the density of the flue gas according to the volume percentage of each component in the obtained desulfurization flue gas;
and the measuring unit is used for calculating the smoke density, the desulfurized dry smoke quantity and the smoke moisture content to generate the water vapor content in the desulfurized smoke for water vapor extraction according to the water vapor content.
7. The apparatus for measuring the water vapor content in desulfurized flue gas according to claim 6,
the first generation unit is specifically used for generating a reference flue gas volume according to the oxygen content of the flue gas, the coal quality parameters, the gaseous sulfur oxide ratio, the denitration efficiency and the desulfurization efficiency; and generating the desulfurized dry flue gas according to the reference flue gas amount and the unit coal combustion amount.
8. The apparatus for measuring the water vapor content in desulfurized flue gas according to claim 6,
the second generating unit is specifically used for generating the partial pressure of the saturated steam according to the acquired outlet flue gas temperature through an antoin equation; and generating the moisture content of the flue gas according to the partial pressure of the saturated steam and the flue gas pressure.
9. A computer-readable medium on which a computer program is stored, the program, when executed by a processor, implementing the method of measuring the water vapour content in desulphurised flue gases according to any one of claims 1 to 5.
10. A computer apparatus comprising a memory for storing information including program instructions and a processor for controlling the execution of the program instructions, wherein the program instructions are loaded and executed by the processor to implement the method of measuring the water vapour content in desulphurised flue gases according to any one of claims 1 to 5.
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| CN202210417038.3A CN114778379A (en) | 2022-04-20 | 2022-04-20 | Method and device for measuring steam content in desulfurized flue gas |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115374632A (en) * | 2022-08-19 | 2022-11-22 | 南方电网电力科技股份有限公司 | Calculation method and related device for outlet flue gas in SNCR (selective non-catalytic reduction) denitration system |
| CN115518497A (en) * | 2022-11-01 | 2022-12-27 | 杭州嘉隆气体设备有限公司 | Blast regeneration compressed air dryer and use method thereof |
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2022
- 2022-04-20 CN CN202210417038.3A patent/CN114778379A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115374632A (en) * | 2022-08-19 | 2022-11-22 | 南方电网电力科技股份有限公司 | Calculation method and related device for outlet flue gas in SNCR (selective non-catalytic reduction) denitration system |
| CN115374632B (en) * | 2022-08-19 | 2024-01-26 | 南方电网电力科技股份有限公司 | Calculation method and related device for outlet flue gas in SNCR (selective non-catalytic reduction) denitration system |
| CN115518497A (en) * | 2022-11-01 | 2022-12-27 | 杭州嘉隆气体设备有限公司 | Blast regeneration compressed air dryer and use method thereof |
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