CN217042056U - Desulfurization slurry circulating system - Google Patents
Desulfurization slurry circulating system Download PDFInfo
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- CN217042056U CN217042056U CN202121170239.5U CN202121170239U CN217042056U CN 217042056 U CN217042056 U CN 217042056U CN 202121170239 U CN202121170239 U CN 202121170239U CN 217042056 U CN217042056 U CN 217042056U
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Abstract
The utility model discloses a desulfurization slurry circulating system, which comprises an intelligent optimization module, a DCS module, an information acquisition unit, a pH value optimization controller, a flow optimization controller, a slurry pump, a permanent magnet speed regulating device and an absorption tower; the intelligent optimization module is connected with the DCS module; the information acquisition unit is connected with the DCS module; the pH value optimization controller is connected with the information acquisition unit; the flow optimization controller is connected with the pH value optimization controller and the information acquisition unit; the slurry pump is connected with the DCS module and the absorption tower; according to the system, the real-time relevant desulfurization parameters of the absorption tower are obtained, the control parameters are optimized according to the real-time relevant parameters, the speed of the slurry pump is controlled by the permanent magnet speed regulation device, the flow of the slurry entering the absorption tower is further controlled, the blind area of the absorption tower is reduced, the absorption efficiency of the absorption tower is improved, the energy consumption is reduced, and the human resources are saved. The utility model can be widely applied in the technical field of desulfurization industry.
Description
Technical Field
The utility model belongs to the technical field of the desulfurization industry technique and specifically relates to a desulfurization slurry circulation system.
Background
At present, thermal power generation is a common industrial technology, and under the development of the current industry, the operating pressure of a thermal power plant is higher and higher, the power generation capacity is increased year by year, meanwhile, the environmental protection requirement is increased continuously, and the operating cost of an enterprise is higher and higher. After the ultralow emission is reformed transform, because desulfurization absorption tower flue gas reaction is the process of big lag, slow motion, in order to control the quality of desulfurization, the operation personnel often can switch to the whole desulfurization system of manual control, through the operation platform number of direct control thick liquid circulating pump, open and stop and adjust lime stone thick liquid flow valve and intervene, but because supply thick liquid governing valve to have more serious blind area, cause the production of absorption tower blind area very easily. In order to control the concentration of the sulfur dioxide at the outlet at a lower level, operators often put into use a plurality of slurry pumps at the same time for most of the time, so that unnecessary energy consumption waste is caused to the electric quantity of the limestone and the slurry pumps.
In the related art, aiming at the dead zone of the absorption tower, the mode of improving the flow of oxidizing gas and manually controlling the flow of flue gas is mostly adopted to improve the reaction rate so as to reduce the generation of the dead zone of the absorption tower, but the two improvements are not easy to control because the flow of gas is influenced by a plurality of factors such as temperature, the pressure of the absorption tower and the like, and the manual operation wastes human resources.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve one of the technical problem that exists in the correlation technique at least to a certain extent.
Therefore, an object of the embodiment of the utility model is to provide a desulfurization thick liquid circulation system, this system is through acquireing the real-time relevant desulfurization parameter of absorption tower, according to real-time relevant parameter optimization control parameter, utilizes the speed of permanent magnet speed adjusting device control thick liquid pump, and then the thick liquid flow that control got into the absorption tower has reduced the blind area of absorption tower, has improved the absorption efficiency of absorption tower, has reduced the energy consumption, has saved manpower resources.
In order to achieve the technical purpose, the embodiment of the present invention adopts a technical solution including:
a desulfurization slurry circulating system comprises an intelligent optimization module, a DCS module, an information acquisition unit, a pH value optimization controller, a flow optimization controller, a slurry pump, a permanent magnet speed regulation device and an absorption tower;
the intelligent optimization module is connected with the DCS module;
the information acquisition unit is connected with the DCS module; the information acquisition unit is used for acquiring the concentration of sulfur dioxide, the desulfurization rate, the pH value and the slurry flow at the outlet of the absorption tower;
the pH value optimization controller is connected with the information acquisition unit;
the flow optimization controller is connected with the pH value optimization controller and the information acquisition unit;
the slurry pump is electrically connected with the DCS module; the slurry pump is connected with the absorption tower through a pipeline; the slurry pump is used for controlling the slurry to enter the absorption tower;
the permanent magnet speed regulating device is connected with the slurry pump; the permanent magnet speed regulating device is used for controlling the flow of the slurry.
In addition, according to the utility model discloses a desulfurization thick liquid circulation system of above-mentioned embodiment can also have following additional technical characterstic:
optionally, in an embodiment of the present invention, the intelligent optimization module includes a server and a communication card.
Optionally, in an embodiment of the invention, the DCS module includes a sequence control system.
Optionally, in an embodiment of the present invention, the information collecting unit includes a gas sensor, a pH meter, and a flow meter.
Optionally, in an embodiment of the present invention, the information collecting unit is disposed at an outlet of the absorption tower.
Optionally, in an embodiment of the present invention, the permanent magnet speed adjusting device includes a motor, a conductor disc, and a permanent magnet disc.
Optionally, in an embodiment of the invention, the absorption tower comprises a circulating slurry tank.
Optionally, in an embodiment of the present invention, the circulating slurry tank is disposed at the bottom of the absorption tower.
Advantages and benefits of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention:
the embodiment of the utility model provides an in desulfurization slurry circulation system is through acquireing the real-time relevant desulfurization parameter of absorption tower, according to real-time relevant parameter optimization control parameter, utilizes the speed of permanent magnet speed adjusting device control thick liquid pump, and then the control gets into the thick liquid flow of absorption tower, has reduced the blind area of absorption tower, has improved the absorption efficiency of absorption tower, has reduced the energy consumption, has saved manpower resources.
Drawings
Fig. 1 is a schematic view of a connection structure of a desulfurization slurry circulation system according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the terms "distance", "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
Referring to fig. 1, the embodiment of the present application provides a desulfurization slurry circulation system, which includes an intelligent optimization module 1, a DCS module 2, an information acquisition unit 6, a pH optimization controller 7, a flow optimization controller 8, a slurry pump 4, a permanent magnet speed regulation device 3, and an absorption tower 5; the intelligent optimization module 1 is connected with the DCS module 2; the intelligent optimization module 1 is used for acquiring the process parameters of the desulfurization device from the DCS module 2 and sending the operation variables subjected to optimization calculation to the DCS module 2 by adopting a ModBus communication protocol; the information acquisition unit 6 is connected with the DCS module 2; the information acquisition unit 6 comprises a gas sensor, a pH value measuring instrument and a flowmeter; the information acquisition unit 6 can acquire the concentration of sulfur dioxide at the outlet of the absorption tower 5, the desulfurization rate, the real-time pH value and the slurry flow; the pH value optimization controller 7 is connected with the information acquisition unit 6; the pH value optimization controller 7 is used for obtaining and calculating the concentration and the desulfurization rate of outlet sulfur dioxide to obtain a pH optimization set value; the flow optimization controller 8 is connected with the pH value optimization controller 7 and the information acquisition unit 6, the pH value optimization controller 7 and the flow optimization controller 8 can also be integrated into a system; the flow optimization controller 8 is used for calculating a slurry flow optimization set value according to the pH optimization set value and the real-time pH value, and controlling the slurry pump 4 according to the slurry flow optimization set value and a slurry flow signal so as to enable the pH value in the absorption tower 5 to be equal to the pH optimization set value; the slurry pump 4 is electrically connected with the DCS module 2 and is connected with the absorption tower 5 through a pipeline; the slurry pump 4 is used for controlling the slurry to enter the absorption tower 5; the permanent magnet speed regulating device 3 comprises a motor, a conductor disc and a permanent magnet disc; the permanent magnet speed regulating device 3 is connected with the slurry pump 4; the permanent magnet speed control device 3 controls the flow rate of the slurry flowing to the absorption tower 5 by controlling the speed of the slurry pump 4. In the embodiment of the application, the intelligent optimization module 1 can acquire relevant information from the DCS module 2 and send operation variables to the DCS module 2, so as to implement interactive communication between the two. And the sequence control system of the DCS module 2 sends signals to the permanent magnet speed regulating device 3, so that the rotating speed of the slurry pump 4 is controlled, and the flow of the slurry entering the absorption tower 5 is controlled. And the information acquisition unit 6 is arranged at the outlet of the absorption tower 5, and the information acquisition unit 6 can acquire real-time desulfurization parameters at the outlet of the absorption tower 5. The pH value optimization controller 7 and the flow optimization controller 8 can obtain relevant desulfurization parameters, calculate real-time optimized control parameter set values by combining the real-time parameters, convert the optimized control parameter set values into control signals through data processing and communication between the intelligent optimization module 1 and the DCS module 2, and control the corresponding permanent magnet speed adjusting device 3 through a sequence controller of the DCS module 2 to realize the real-time control of the slurry flow.
Specifically, in the embodiment of the present application, the intelligent optimization module 1 includes a server and a communication card, the server implements bidirectional communication with the DCS module 2 through the communication card, receives relevant operating parameter information from the DCS module 2 through a serial port, obtains relevant process parameters (such as desulfurization rate, sulfur dioxide concentration, pH value, and slurry flow) of the desulfurization apparatus, performs optimization calculation processing through an internal controller, and sends operation variables subjected to optimization calculation to a corresponding sequential control system in the DCS module 2 by using a ModBus communication protocol, the sequential control system controls the permanent magnet speed adjusting device 3 to adjust the speed of the slurry pump 4, and controls the slurry flow flowing to the internal circulation slurry tank of the absorption tower 5. When the concentration of sulfur dioxide at the outlet of the absorption tower 5 needs to be controlled at a relatively low level, the information acquisition unit 6 at the outlet obtains the real-time concentration, desulfurization rate, real-time pH value and slurry flow rate of the sulfur dioxide at the outlet of the absorption tower 5 through the gas sensor, the pH value measuring instrument and the flow meter, and the pH value optimization controller 7 obtains and calculates the outlet concentration and desulfurization rate of the sulfur dioxide to obtain a pH optimization set value. The flow optimization controller 8 calculates an obtained pH optimization set value and a real-time pH value measured by the information acquisition unit 6 to obtain a slurry flow optimization set value, the obtained pH optimization set value and the slurry flow optimization set value are converted into a control signal of the DCS module 2 through the intelligent optimization module 1, the control signal is sent to a sequential control system of the DCS module 2 through a ModBus communication protocol, the sequential control system controls the permanent magnet speed regulating device 3, the permanent magnet speed regulating device 3 can control transmitted torque through a motor to regulate an air gap between a permanent magnet disc and a conductor disc so as to control the rotating speed of the slurry pump 4, the slurry flow flowing to a circulating slurry pool at the bottom of the absorption tower 5 is further controlled, the desulfurization flue gas reaction in the absorption tower 5 is ensured to be carried out at the highest efficiency, and the energy conservation and the high efficiency of the whole system are further ensured.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "transmit" is to be interpreted broadly, e.g., as either a transmission, a transport, or a dispatch; the specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present specification, a description with reference to terms means that a specific structure or feature described in connection with an embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (8)
1. A desulfurization slurry circulating system is characterized by comprising an intelligent optimization module, a DCS module, an information acquisition unit, a pH value optimization controller, a flow optimization controller, a slurry pump, a permanent magnet speed regulating device and an absorption tower;
the intelligent optimization module is connected with the DCS module;
the information acquisition unit is connected with the DCS module; the information acquisition unit is used for acquiring the concentration of sulfur dioxide, the desulfurization rate, the pH value and the slurry flow at the outlet of the absorption tower;
the pH value optimization controller is connected with the information acquisition unit;
the flow optimization controller is connected with the pH value optimization controller and the information acquisition unit;
the slurry pump is electrically connected with the DCS module; the slurry pump is connected with the absorption tower through a pipeline; the slurry pump is used for controlling the slurry to enter the absorption tower;
the permanent magnet speed regulating device is connected with the slurry pump; the permanent magnet speed regulating device is used for controlling the flow of the slurry.
2. The desulfurization slurry circulation system of claim 1, wherein the intelligent optimization module comprises a server and a communication card.
3. The desulfurization slurry circulation system of claim 1, wherein said DCS module includes a sequence control system.
4. The desulfurization slurry circulation system according to claim 1, wherein the information acquisition unit comprises a gas sensor, a pH value measuring instrument and a flow meter.
5. The desulfurization slurry circulation system according to claim 4, wherein the information acquisition unit is provided at an outlet of the absorption tower.
6. The desulfurization slurry circulation system of claim 1, wherein the permanent magnet governor device comprises a motor, a conductor disc and a permanent magnet disc.
7. The desulfurization slurry circulation system of claim 1, wherein the absorption tower comprises a circulating slurry tank.
8. The desulfurization slurry circulation system according to claim 7, wherein said circulating slurry tank is disposed at the bottom of said absorption tower.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121170239.5U CN217042056U (en) | 2021-05-27 | 2021-05-27 | Desulfurization slurry circulating system |
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| CN202121170239.5U CN217042056U (en) | 2021-05-27 | 2021-05-27 | Desulfurization slurry circulating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115057765A (en) * | 2022-07-27 | 2022-09-16 | 江苏道尔顿石化科技有限公司 | Production method for sorbic acid continuous condensation reaction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115057765A (en) * | 2022-07-27 | 2022-09-16 | 江苏道尔顿石化科技有限公司 | Production method for sorbic acid continuous condensation reaction |
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