CN110975548A - Flue gas purification system - Google Patents
Flue gas purification system Download PDFInfo
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- CN110975548A CN110975548A CN201911211417.1A CN201911211417A CN110975548A CN 110975548 A CN110975548 A CN 110975548A CN 201911211417 A CN201911211417 A CN 201911211417A CN 110975548 A CN110975548 A CN 110975548A
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- module
- denitration
- deacidification
- atomizer
- flue gas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/346—Controlling the process
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/40—Acidic components
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Health & Medical Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- Biomedical Technology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Computing Systems (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a flue gas purification system, which is characterized in that a denitration module and a deacidification module are connected through an Ethernet, the Ethernet is used for internal communication between the denitration module and the deacidification module, and then an atomizer is connected with the denitration module and the deacidification module through a conversion module of a communication coupler, so that the use of the conventional conversion module is reduced, the cost can be greatly reduced, and the convenience of the internal communication is improved.
Description
Technical Field
The present invention relates to the field of purification systems, in particular flue gas purification systems.
Background
A Programmable Logic Controller (PLC), which is a digital electronic device with a microprocessor, is used for an automatic control digital Logic Controller, and can load control instructions into a memory at any time for storage and execution. The programmable controller is modularly assembled by internal CPU, command and data memory, input/output unit, power module, digital analog unit, etc. the programmable logic controller can receive (input) and send (output) various types of electric or electronic signals, and use them to control or supervise almost all kinds of mechanical and electrical systems.
Originally, programmable logic controllers, which have only circuit logic control functions, were named programmable logic controllers, and since they have been developed, these Computer modules, which have simple functions, already have many functions including logic control, sequential control, analog control, multi-Computer communication, etc., and their names have been changed to programmable controllers (programmable controllers), but since their abbreviations are also conflicting with the abbreviations of Personal computers (Personal computers), and also due to their usage habits over many years, the nomenclature of programmable logic controllers has been used frequently and is still followed in terms of PLC.
Before the advent of programmable logic controllers, hundreds or thousands of relays and counters were typically used to build automation systems with the same functionality, and now simple programmable logic controller modules programmed have essentially replaced these large devices. The system program of the programmable logic controller is generally initialized before leaving the factory, and a user can edit a corresponding user program according to the requirement to meet different automatic production requirements.
The industrial use of Programmable Logic Controllers (PLC) is relatively close to a lightweight computer, and even Programmable Automation Controllers (PACs) have been developed which integrate the architecture of a pc (personal computer) and a PLC, and which can control machine devices, manufacturing processes, and other control modules through digital or analog i/o modules. The programmable logic controller is widely applied to the field of current industrial control. In the field of industrial control, the application of PLC control technology has become an indispensable member of the industry.
A common flue gas purification system comprises a deacidification system and a denitration system, wherein the deacidification system comprises a cloth bag dust removal device, a fly ash conveying device, a process water device, a slurry device, an activated carbon device, a dry powder device, an atomizer device and the like, a conventional Programmable Logic Controller (PLC) is configured according to the system, the cloth bag dust removal system is a control cabinet, the fly ash conveying device, the process water device and the slurry device are control cabinets, the activated carbon device and the dry powder device are respectively independent control cabinets, and the Scissors atomizer belongs to a complex control system, so that the atomizer system is also a single control cabinet, and the denitration system comprises a single line and two public control cabinets.
For example, taking four flue gas purification systems as an example, four control cabinets for a bag-type dust removal device, one control cabinet for a fly ash conveying device and a process water device, two control cabinets for an activated carbon device and a dry powder device, four control cabinets for an atomizer device and five control cabinets for a denitration module, wherein the bag-type dust removal system control cabinet is taken as a main station in the deacidification system, and the deacidification system needs to communicate with the fly ash conveying device, the process water conveying device, the activated carbon device, the dry powder device, the slurry device and the atomizer device and control the fly ash conveying device, the process water conveying device, the activated carbon device, the dry powder device, the slurry device and the atomizer device in a mutually matched manner, so that in the system, standby equipment is used, communication is also needed among the bag-type dust removal devices in the prior art, and if the system is configured by communication of a conventional Profibus-DP communication conversion module (Decentralized Periphery), the Profibus-DP communication module in the system can be used very much and has high, furthermore, there is a frequency converter communication in the atomizer device and, furthermore, the smoker system needs to communicate with the boiler system, and the use of this single communication would not be suitable for the control of the complex system described above.
Disclosure of Invention
The present invention provides a flue gas purification system, which connects a denitration module and a deacidification module via an ethernet network, so that the ethernet network is used for internal communication, and then an atomizer connects the denitration module and the deacidification module via a conversion module, thereby reducing the use of the conversion module and improving the convenience of the internal communication.
The technical scheme adopted by the invention for solving the technical problems is as follows: there is provided a flue gas cleaning system comprising: the denitration system comprises a first denitration module, a first deacidification module and a first atomizer, wherein the first denitration module is connected with the first denitration module through an Ethernet, and the first atomizer is connected with the first deacidification module and the first denitration module through a first conversion module.
Further, a second denitration module, a second deacidification module, a second atomizer and a second conversion module are arranged, the second denitration module is connected with the second deacidification module through the Ethernet, and the second atomizer is connected with the second denitration module and the second deacidification module through the second conversion module.
Further, a third denitration module, a third deacidification module, a third conversion module and an activated carbon module are arranged, the third denitration module is connected with the third deacidification module through the Ethernet, and the activated carbon module is connected with the third denitration module and the third deacidification module through the third conversion module.
Further, the first atomizer further comprises a first frequency converter therein, the second atomizer further comprises a second frequency converter therein, and the first frequency converter is connected to the second frequency converter through a first conversion device.
Further, the first deacidification module, the second deacidification module and the third deacidification module are a cloth bag dust removal device, a fly ash conveying device, a process water device, a slurry device or a dry powder device.
Further, a boiler device is arranged, and the boiler device is connected with the first denitration module and the first deacidification module through the Ethernet.
The invention is directed to a conventional smoke purifier system, and the invention is characterized in that an Ethernet is respectively connected with a denitration module and a deacidification module, the denitration module and the deacidification module can be used as internal communication and connected with an external boiler device, and the denitration module and the deacidification module can also be connected through the Ethernet, so that the use of a conversion module (Profibus-DP) can be saved, the communication is more convenient and is not limited by the number of words, the conversion module is respectively connected with the denitration module and the deacidification module through the atomizer, the use of the conversion module can be reduced through the communication mode, and the communication Coupler (DP Coupler) is used for connection in the atomizer, so the cost price is much lower than that of a conventional communication device.
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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of the steps of a first embodiment of a flue gas cleaning system according to the present invention;
FIG. 2 is a schematic diagram of the steps of a second embodiment of the flue gas cleaning system of the present invention;
FIG. 3 is a schematic view of the steps of a first embodiment of the flue gas cleaning system according to the present invention;
FIG. 4 is a schematic diagram of the steps of the first embodiment of the flue gas cleaning system 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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present invention is to solve the problems that the conventional communication configuration of the system using the conventional Profibus-DP communication conversion module (decentralized peripheral) will use a lot of communication modules, and the cost is high, wherein the conventional Profibus-DP communication conversion module is the DP communication module with model number CP342, and the atomizer device also has the communication of the frequency converter, furthermore, the smoke generator system also needs to communicate with the boiler system, and the single communication is not suitable for the control of the above-mentioned complex system, so the inventor has developed and studied for a long time, invented a smoke purification system, which uses ethernet to connect the denitration module and the deacidification module respectively, can be used as the internal communication, and can connect the external boiler device, and can also connect the denitration module and the deacidification module via ethernet, compared with the conventional technology, the invention replaces the original Profibus-DP communication module with the Ethernet, which can save the use of a conversion module (Profibus-DP), and the communication is more convenient and is not limited by the number of words.
First, please refer to fig. 1, which is a schematic step diagram of a first embodiment of the present invention, and as shown in the figure, the present invention is a flue gas purification system 1, which includes a first denitration module 2, a first deacidification module 3, a first atomizer 4 and a first conversion module 5.
Said first denitration module 2 is connected to said first deacidification module 3 by an ethernet W for the purpose of internal communication between said first denitration module 2 and said first deacidification module 3, and said first atomizer 4 is connected to said first denitration module 2 and said first deacidification module 3 via a first switching module 5, wherein said first switching module 5 comprises at least two first switching slots 502, said first denitration module 2 and said first deacidification module 3 are respectively connected to said at least two first switching slots 502, said at least two first switching slots 502 of this embodiment are illustrated by two first switching slots 502 and said first switching module 5 comprises a communication Coupler (DP-Coupler), said communication Coupler (DP-Coupler) in said first switching module 5 is much cheaper in price cost than the conventional Coupler (DP), and the communication Coupler (DP-Coupler) is not limited by baud rate, and is quite convenient to use.
The first deacidification module 3 includes a cloth bag dust removing device, a fly ash conveying device, a process water device, a slurry device or a dry powder device, in this embodiment, the first denitration module 2 and the first deacidification module 3 are programmable logic controllers, further, the programmable logic controllers of the first denitration module 2 and the first deacidification module 3 are model numbers of siemens (Simatic) S7-300 series, a Central processing unit (Central processing unit, CPU for short) therein is a CPU315-2 DP Central processing unit, the ethernet W is an ethernet using CP343-1Lean, and the CP343-1Lean module is an ethernet communication module of siemens S7-300 series PLC, which is not limited by word number and greatly increases convenience of communication.
Furthermore, the first denitration module 2 further includes a first denitration sensor 202, the first deacidification module 3 further includes a first deacidification sensor 302, when the first denitration sensor 202 senses the denitration, the first denitration sensor 202 transmits a signal to the first atomizer 4 to enable the first atomizer 4 to generate a corresponding denitration effect, and when the first denitration sensor 302 senses the acid, the first deacidification sensor 302 transmits a signal to the first atomizer 4 to enable the first atomizer 4 to generate a corresponding deacidification effect.
Next, please refer to fig. 2, which is a schematic step diagram of a second embodiment of the present invention, and as shown in the figure, the second embodiment of the present invention further includes a second denitration module 22, a third denitration module 24, a second deacidification module 32, a third deacidification module 34, a second atomizer 42 and an activated carbon module 6, compared with the first embodiment, which are the same as the first embodiment, and therefore, the description thereof is omitted.
The second denitration module 22, the third denitration module 24, the second deacidification module 32 and the third deacidification module 34 are all connected to the ethernet network W for the purpose of internal communication, the second atomizer 42 is connected with the second denitration module 22 and the second deacidification module 32 via a second conversion module 52, the activated carbon module 6 is connected with the third denitration module 24 and the third deacidification module 34 via a third conversion module 54, wherein the second conversion module 52 and the third conversion module 54 respectively have at least two second conversion slots 522 and at least two third conversion slots 542, the second denitration module 22 and the second deacidification module 32 are connected with the second conversion module 54 via the at least two second conversion slots 522, the third denitration module 24 and the third deacidification module 34 are connected with the third conversion module 54 via the at least two third conversion slots 542, the second conversion module 52 and the third conversion module 54 of the present embodiment have a communication Coupler (DP-Coupler) as well as the first conversion module 5.
The second deacidification module 32 and the third deacidification module 34 include a cloth bag dust removing device, a fly ash conveying device, a process water device, a slurry device or a dry powder device, in this embodiment, the second denitration module 22, the third denitration module 24, the second deacidification module 32, and the third deacidification module 34 are programmable logic controllers, and, more particularly, the programmable logic controllers of the second denitration module 22, the third denitration module 24, the second deacidification module 32 and the third deacidification module 34 are model numbers S7-300 series of Siemens (Simatic), the Central Processing Unit (CPU) is a CPU315-2 DP, the Ethernet W is an Ethernet adopting CP343-1Lean, and the CP343-1Lean module is an Ethernet communication module of Siemens S7-300 series PLC.
Furthermore, the second denitration module 22 further comprises a second denitration sensor 222, the third denitration module 24 further comprises a third denitration sensor 242, the second denitration module 32 further comprises a second denitration sensor 322, and the third denitration module 34 further comprises a third denitration sensor 324, when the second denitration sensor 222 or the third denitration sensor 242 senses the denitration, the second denitration sensor 222 or the third denitration sensor 242 transmits a signal to the second atomizer 42 or the activated carbon module 6 to cause the second atomizer 42 or the activated carbon module 6 to generate corresponding denitration effect, when the second denitration sensor 322 or the third denitration sensor 342 senses the acid, the second denitration sensor 322 or the third denitration sensor 342 transmits a signal to the second atomizer 42 or the activated carbon module 6, the corresponding deacidification effect is generated by the second atomizer 42 or the activated carbon module 6.
Referring to fig. 3, which is a schematic step diagram of a second embodiment of the present invention, as shown in the figure, the first atomizer 4 further includes a first frequency converter 402, the second atomizer 42 further includes a second frequency converter 422, and the first frequency converter 402 is connected to the second frequency converter 422 through a first conversion device 41, so that the first atomizer 4 and the second atomizer 42 can perform master-slave communication.
Referring to fig. 4, which is a schematic step diagram of a second embodiment of the present invention, as shown in the figure, a boiler device 7 is further provided, the boiler device 7 is connected to the first denitration module 2, the second denitration module 22, the third denitration module 24, the first deacidification module 3, the second deacidification module 32 and the third deacidification module 34 through the ethernet W, and the boiler device 7 is connected to the denitration modules and the deacidification modules through the ethernet W, which can save the use of conventional couplers (DP).
In summary, the flue gas purification system of the present invention can connect the denitration module and the deacidification module via the ethernet network without using the Coupler (DP) as in the conventional manner, which can save the use of the Coupler, greatly reduce the cost and improve the communication convenience between the denitration module and the deacidification module, and the external boiler device is also connected with the denitration module and the deacidification module via the ethernet network without using the conventional Coupler (DP) for connection, and the atomizer is respectively connected with the denitration module and the deacidification module via the communication Coupler (DP-Coupler), which is much cheaper than the conventional Coupler (DP) in cost, and the communication Coupler (DP-Coupler) is not limited by baud rate, and is very convenient to use.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. A flue gas purification system, comprising:
a first denitration module;
a first de-acidification module connected to the first de-acidification module, wherein the first de-acidification module is connected to the first de-acidification module via an Ethernet; and
a first atomizer connected to the first deacidification module and the first denitration module via a first conversion module.
2. The flue gas purification system according to claim 1, further comprising a second denitration module, a second deacidification module, a second atomizer and a second conversion module, wherein the second denitration module is connected to the second deacidification module via the Ethernet, and the second atomizer is connected to the second denitration module and the second deacidification module via the second conversion module.
3. The flue gas purification system according to claim 2, further comprising a third denitration module, a third deacidification module, a third conversion module and an activated carbon module, wherein the third denitration module is connected to the third deacidification module via the Ethernet, and the activated carbon module is connected to the third denitration module and the third deacidification module via the third conversion module.
4. The flue gas purification system according to claim 3, wherein the first atomizer further comprises a first frequency converter, the second atomizer further comprises a second frequency converter, and the first frequency converter is connected to the second frequency converter through a first conversion device.
5. The flue gas purification system of claim 3, wherein the first, second, and third deacidification modules are bag house units, fly ash conveyors, process water units, slurry units, or dry powder units.
6. The flue gas purification system according to claim 1, further comprising a boiler device, wherein the boiler device is connected to the first denitration module and the first deacidification module via the Ethernet.
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| CN201911211417.1A CN110975548A (en) | 2019-12-02 | 2019-12-02 | Flue gas purification system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911211417.1A CN110975548A (en) | 2019-12-02 | 2019-12-02 | Flue gas purification system |
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Citations (6)
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| CN202199458U (en) * | 2011-08-03 | 2012-04-25 | 周国富 | Novel intelligent atomizer |
| CN102728194A (en) * | 2012-07-11 | 2012-10-17 | 光大环保科技发展（北京）有限公司 | Method and device for fume purification treatment in waste incineration |
| CN203108429U (en) * | 2013-03-12 | 2013-08-07 | 伟明环保设备有限公司 | High-speed rotation automatic atomizing control system used for atomizing lime milk |
| CN104252155A (en) * | 2013-06-27 | 2014-12-31 | 北京青山绿野环保科技有限公司 | Integrated control system for coal-fired boiler flue gas treatment projects |
| US20170333874A1 (en) * | 2016-05-20 | 2017-11-23 | General Electric Technology Gmbh | System and method for reducing carbon dioxide emissions from a flue gas generated via combusting a fossil fuel |
| CN208194075U (en) * | 2018-02-06 | 2018-12-07 | 光大环境科技（中国）有限公司 | Flue gas purification system |
-
2019
- 2019-12-02 CN CN201911211417.1A patent/CN110975548A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202199458U (en) * | 2011-08-03 | 2012-04-25 | 周国富 | Novel intelligent atomizer |
| CN102728194A (en) * | 2012-07-11 | 2012-10-17 | 光大环保科技发展（北京）有限公司 | Method and device for fume purification treatment in waste incineration |
| CN203108429U (en) * | 2013-03-12 | 2013-08-07 | 伟明环保设备有限公司 | High-speed rotation automatic atomizing control system used for atomizing lime milk |
| CN104252155A (en) * | 2013-06-27 | 2014-12-31 | 北京青山绿野环保科技有限公司 | Integrated control system for coal-fired boiler flue gas treatment projects |
| US20170333874A1 (en) * | 2016-05-20 | 2017-11-23 | General Electric Technology Gmbh | System and method for reducing carbon dioxide emissions from a flue gas generated via combusting a fossil fuel |
| CN208194075U (en) * | 2018-02-06 | 2018-12-07 | 光大环境科技（中国）有限公司 | Flue gas purification system |
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Application publication date: 20200410 |