CN112933952B - PNCR denitration optimizing system based on big data - Google Patents
PNCR denitration optimizing system based on big data Download PDFInfo
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- CN112933952B CN112933952B CN202110143678.5A CN202110143678A CN112933952B CN 112933952 B CN112933952 B CN 112933952B CN 202110143678 A CN202110143678 A CN 202110143678A CN 112933952 B CN112933952 B CN 112933952B
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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
- B01D53/565—Nitrogen oxides by treating the gases with solids
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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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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
Abstract
The invention provides a PNCR denitration optimization system based on big data, which comprises a detection device, a sensing device, a control device, an early warning device, a sampling device, an adjusting device and a processor, wherein the detection device is constructed to detect parameters of a reducing agent in a reaction cavity; the sensing device is configured to sense the reductant; the control device is configured to control a trigger timing of the reducing agent; the early warning device is configured to early warn a parameter in the reaction chamber; the data of the detection device and the sensing device are matched to respond to the early warning operation; the sampling device is configured to collect the reaction effect of the reaction chamber; the adjusting device is configured to adjust a mixing condition of the reducing agent. According to the invention, oxygen is driven in the contact cavity, so that the discharge speed is reduced in the process of outputting the waste gas in a constant container, the contact between the reducing agent and the waste gas is further enhanced, and the treatment efficiency of the waste gas is ensured to be improved.
Description
Technical Field
The invention relates to the technical field of waste gas treatment, in particular to a PNCR denitration optimization system based on big data.
Background
With the continuous expansion of the number and scale of cities, the requirement for municipal waste treatment is higher and higher. The garbage incineration treatment is the most common garbage treatment method applied abroad at present, and the method has the greatest advantage of high garbage recycling and reduction treatment degree. The waste incineration plants are built around cities, the waste is convenient to transport, and electric energy or heat energy can be provided for the cities, so that good economic benefits are generated.
For example, CN108786401A prior art discloses a PNCR denitration agent spray gun control system and a PNCR denitration agent spray gun control method, after refuse incineration, NOx in flue gas generated by incineration needs to be subjected to denitration treatment. The traditional denitration method mainly comprises SNCR, rotary spraying semi-dry method, dry method and the like, and along with the increasing requirement on environmental protection in China, the traditional denitration method is more and more difficult to meet the production requirement. The PNCR system has the advantages of simple process, low cost and high denitration efficiency, and can well meet the field requirements. Due to the fact that flue gas temperature changes rapidly and flue gas concentration changes greatly in the waste incineration process, nitrogen oxide indexes in flue gas after PNCR denitration fluctuate greatly and ammonia escape is high, and the treated flue gas cannot reach emission indexes of discharged flue gas nitrogen oxide and ammonia escape. Through a large amount of searches, the existing prior art such as KR104524364B1, EP2422996B1 and US08710696B1 is found, and the denitration system in the field currently known comprises a PLC (programmable logic controller), a denitration agent bin, a weighing screw conveyer, a Roots blower and a feeding pipeline. In the in-service use, the denitrifier feed bin can appear unloading often not unobstructed so that produce various problems such as bridging, compaction at the in-process of unloading, and traditional solution aerifys or carries out the bulkhead and shakes in to the feed bin, and these modes have certain drawback, for example the effect is unstable, and life is not long, receives the influence of denitrifier characteristic to cause permanent destruction to the bulkhead.
The invention aims to solve the problems of poor detection precision, complex installation, large index fluctuation, incapability of capturing, high energy consumption, low manual investment, lack of early warning, untimely switching, inconvenient maintenance and the like in the field.
Disclosure of Invention
The invention aims to provide a PNCR denitration optimization system based on big data aiming at the defects of the conventional PNCR denitration.
In order to overcome the defects of the prior art, the invention adopts the following technical scheme:
a big data-based PNCR denitration optimization system comprises a detection device, a sensing device, a control device, an early warning device, a sampling device, an adjusting device and a processor, wherein the detection device is configured to detect parameters of a reducing agent in a reaction cavity; the sensing device is configured to sense the reductant; the control device is configured to control a trigger timing of the reducing agent; the early warning device is configured to perform early warning on parameters in the reaction cavity and cooperate with data response of the detection device and the induction device to perform early warning operation; the sampling device is configured to collect the reaction effect of the reaction cavity; the adjustment device is configured to adjust a mixing condition of the reducing agent.
Optionally, the detection device comprises a detection mechanism and a protection mechanism, wherein the protection mechanism is configured to protect the detection mechanism; the detection mechanism is configured to detect a parameter in the reaction chamber; the detection mechanism includes a detection element configured to be disposed on an angle conversion member and an angle conversion member; the angle conversion member is configured to convert a detection angle of the detection element; the protection mechanism comprises a protection seat, a protection cover and a protection driving mechanism, wherein the protection cover is constructed to be hinged to the protection seat, and the protection cover is constructed to be in driving connection with the protection driving mechanism.
Optionally, the sensing device comprises a sensing mechanism and a screening mechanism, wherein the sensing mechanism is configured to detect a parameter of the reducing agent; the screening mechanism is configured to screen the supply of the reducing agent into the reaction chamber if a set criterion is met; the sensing mechanism comprises a sensing net and a vibrating member, wherein the vibrating member is connected with the sensing net and is used for vibrating reducing agent particles passing through the sensing net; the screening mechanism comprises a screening channel, a poking piece and a poking driving mechanism, and the poking driving mechanism is configured to be in driving connection with the poking piece to form a poking part; the screening channel is provided with a storage cavity for accommodating the shifting part, and the shifting part is hinged with the storage cavity.
Optionally, the control device comprises a control cavity, an evacuation mechanism, a feeding mechanism and a loading mechanism, wherein the evacuation mechanism is configured to perform evacuation operation on the control cavity; the feeding mechanism is connected with the loading mechanism, the loading mechanism is arranged on the side wall of the control cavity, and the side wall of the control cavity is provided with an auxiliary pipe for placing the loading mechanism; the material loading mechanism comprises a supporting table and a material loading cavity, one end of the supporting table is provided with a cavity for accommodating the material loading table, and the other end of the supporting table is connected with the inner wall of the control cavity.
Optionally, the early warning device comprises a display mechanism, a processing mechanism and a guiding mechanism, wherein the display mechanism is configured to obtain the status of the denitration operation; the processing mechanism is configured to determine one or more transfer fitness distributions along a defined path and to determine extrema of the transfer fitness distributions, to determine optimal control parameter ratios, and to collect data of the sensing device and the sensing device in real time based on the data of the sensing device and the sensing device; the guiding mechanism is configured to convert a standard path split suitability distribution from a real distance, monitor a reaction path of the reducing agent in real time, and generate an adjustment parameter for the adjustment device to be dynamic.
Optionally, the sampling device comprises a sampling mechanism and a data summarization unit, wherein the sampling mechanism is configured to collect data in the control device and the reaction chamber; and is transmitted with the processor through the communicator; the sampling mechanism comprises a gas generation component, a plurality of position markers and a plurality of sampling pieces, and each sampling piece is constructed to be adsorbed at a sampling position, collects data of the sampling position and transmits the data with the data summarizing unit; each of the position markers is configured to identify a position of each of the sampling pieces and generate a code for the position.
Optionally, the adjustment device comprises a primary sensing unit and a secondary sensing unit, the primary sensing unit being configured to respond to receipt of a first synchronisation pulse from the primary sensing unit at the secondary sensing unit, the secondary sensing unit varying the period of a second synchronisation pulse sent to the primary sensing unit to indicate to the primary sensing unit: the secondary sensing unit is configured to synchronize to the primary sensing unit and, in response to receiving a second synchronization pulse from the secondary sensing unit at the primary sensing unit, the primary sensing unit changes a period of the first synchronization pulse to the secondary sensing unit to indicate to the secondary sensing unit.
Optionally, the feeding mechanism comprises a feeding pipeline, a flow control element and a sealing unit, wherein the sealing unit is configured to be arranged at the joint of the feeding pipeline and the control cavity and control the tightness of the feeding pipeline; the flow control is configured to control an amount of reductant injected into the control chamber.
Optionally, the gas generating component comprises a rotating groove, a rotating seat, a group of injector heads, a contact cavity and a rotation driving mechanism, the rotating seat is configured to be in sliding clamping connection with the rotating groove, the group of injector heads are symmetrically arranged on the rotating seat, and the rotation in the direction of the rotating groove is realized firstly in the driving operation of the rotation driving mechanism; the contact chamber is configured to be connected to a set of the ejection heads through a connection pipe.
Optionally, the early warning device further includes an early warning signal unit, and the early warning signal unit detects data of the detection device and the sensing device in real time, calls the data of the detection device and the sensing device when an early warning signal is triggered, and controls the opening of the control device or the adjustment device; and generating a warning message, which is displayed on a display device of the monitoring center; and generates a warning sound.
The beneficial effects obtained by the invention are as follows:
1. the reducing agent powder in the control cavity is sprayed, so that the reducing agent can be in full contact with the waste gas, and the optimization of waste gas treatment is further realized;
2. by adopting the early warning device and the control device to be matched for use, the controller needs to be controlled by the processor in the process of triggering the alarm and providing the alarm for the processor for processing, so that the waste gas can be accurately and efficiently expanded in the process of denitration;
3. the extension unit is adopted to adjust the detection position of the detection element, so that the detection element can detect at different positions of the reaction cavity, and the detection data of the detection element is more accurate and efficient;
4. through the matched use of the plugging unit and the protection mechanism, particles of the reducing agent can be prevented from entering the storage cavity in the storage cavity of the whole detection element;
5. screening the reducing agent by adopting mutual matching between the induction network and the vibration component, and screening out qualified reducing agent;
6. the sealing unit is used for sealing the feeding pipeline and maintaining the pressure value of the control cavity constant, so that the injection mechanism can efficiently and reasonably supply the reducing agent;
7. the sampling device is matched with the early warning device for use, so that sampling data of the sampling device can be transmitted with the processor, and efficient and accurate early warning operation on the early warning signal is realized under the control operation of the processor;
8. through adopting driving oxygen in contacting the chamber for waste gas in the in-process of invariable container output, the exhaust speed of reduction has further strengthened the contact of reductant with waste gas, guarantees that the treatment effeciency of waste gas obtains promoting.
Drawings
The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate corresponding parts throughout the different views.
FIG. 1 is a schematic control flow diagram of the present invention.
Fig. 2 is a schematic structural diagram of the detection device.
Fig. 3 is a schematic structural diagram of the control device.
Fig. 4 is a schematic cross-sectional view at a-a in fig. 3.
FIG. 5 is a schematic structural view of the gas generating member.
Fig. 6 is a schematic structural diagram of the injection mechanism and the contact chamber.
FIG. 7 is a control block diagram of the present invention.
FIG. 8 is a diagram illustrating the control effect curve of the present system.
The reference numbers illustrate: 1-a protruding unit; 2-a storage chamber; 3-a protective cover; 4-protection of the driving mechanism; 5-a reaction chamber; 6-control chamber; 7-screening the channel; 8-a loading mechanism; 9-a through hole; 10-a rotating seat; 11-a spray head; 12-a rotational drive mechanism; 13-a rotating groove; 14-a spraying mechanism; 15-a sensing ball; 16-a sensing layer; 17-a detection tube; 18-contact chamber.
Detailed Description
In order to make the objects and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the following embodiments; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Other systems, methods, and/or features of the present embodiments will become apparent to those skilled in the art upon review of the following detailed description. It is intended that all such additional systems, methods, features and advantages be included within this description, be within the scope of the invention, and be protected by the accompanying claims. Additional features of the disclosed embodiments are described in, and will be apparent from, the detailed description that follows.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper" and "lower" and "left" and "right" etc., it is only for convenience of description and simplification of the description based on the orientation or positional relationship shown in the drawings, but it is not indicated or implied that the device or assembly referred to must have a specific orientation.
The first embodiment is as follows: a big data-based PNCR denitration optimization system comprises a detection device, a sensing device, a control device, an early warning device, a sampling device, an adjusting device and a processor, wherein the detection device is configured to detect parameters of a reducing agent in a reaction cavity; the sensing device is configured to sense the reductant; the control device is configured to control a trigger timing of the reducing agent; the early warning device is configured to perform early warning on parameters in the reaction cavity and cooperate with data response of the detection device and the induction device to perform early warning operation; the sampling device is configured to collect the reaction effect of the reaction cavity; the adjusting device is configured to adjust a mixing condition of the reducing agent;
further, the detection device comprises a detection mechanism and a protection mechanism, wherein the protection mechanism is configured to protect the detection mechanism; the detection mechanism is configured to detect a parameter in the reaction chamber; the detection mechanism includes a detection element configured to be disposed on an angle conversion member and an angle conversion member; the angle conversion member is configured to convert a detection angle of the detection element; the protection mechanism comprises a protection seat, a protection cover and a protection driving mechanism, the protection cover is hinged with the protection seat, and the protection cover is in driving connection with the protection driving mechanism;
further, the sensing device comprises a sensing mechanism and a screening mechanism, wherein the sensing mechanism is configured to detect a parameter of the reducing agent; the screening mechanism is configured to screen the supply of the reducing agent into the reaction chamber if a set criterion is met; the sensing mechanism comprises a sensing net and a vibrating member, wherein the vibrating member is connected with the sensing net and is used for vibrating reducing agent particles passing through the sensing net; the screening mechanism comprises a screening channel, a poking piece and a poking driving mechanism, and the poking driving mechanism is configured to be in driving connection with the poking piece to form a poking part; a storage cavity for accommodating the shifting part is formed in the screening channel, and the shifting part is hinged with the storage cavity;
further, the control device comprises a control cavity, an evacuation mechanism, a feeding mechanism and a loading mechanism, wherein the evacuation mechanism is configured to perform evacuation operation on the control cavity; the feeding mechanism is connected with the loading mechanism, the loading mechanism is arranged on the side wall of the control cavity, and the side wall of the control cavity is provided with an auxiliary pipe for placing the loading mechanism; the material loading mechanism comprises a supporting table and a material loading cavity, a cavity for accommodating the material loading table is formed in one end of the supporting table, and the other end of the supporting table is connected with the inner wall of the control cavity;
further, the early warning device includes a display mechanism, a processing mechanism, and a guide mechanism, the display mechanism being configured to obtain a status of the denitration operation; the processing mechanism is configured to determine one or more transfer fitness distributions along a defined path and to determine extrema of the transfer fitness distributions, to determine optimal control parameter ratios, and to collect data of the sensing device and the sensing device in real time based on the data of the sensing device and the sensing device; the guiding mechanism is configured to convert a standard path diversion suitability distribution from a real distance, monitor a reaction path of the reducing agent in real time, and generate a dynamic adjustment parameter for the adjustment device;
further, the sampling device comprises a sampling mechanism and a data summarizing unit, wherein the sampling mechanism is configured to collect data in the control device and the reaction chamber; and is transmitted with the processor through the communicator; the sampling mechanism comprises a gas generation component, a plurality of position markers and a plurality of sampling pieces, and each sampling piece is constructed to be adsorbed at a sampling position, collects data of the sampling position and transmits the data with the data summarizing unit; each of the position markers is configured to identify a position of each of the sampling pieces and generate a code for the position;
further, the adjustment device includes a primary sensing unit configured to change a period of a second synchronization pulse transmitted to the primary sensing unit in response to receiving the first synchronization pulse from the primary sensing unit at the secondary sensing unit to indicate to the primary sensing unit: the secondary sensing unit is configured to be synchronized to the primary sensing unit and, in response to receiving a second synchronization pulse from the secondary sensing unit at the primary sensing unit, the primary sensing unit changes a period of the first synchronization pulse to the secondary sensing unit to indicate to the secondary sensing unit;
further, the feeding mechanism comprises a feeding pipeline, a flow control element and a sealing unit, wherein the sealing unit is configured to be arranged at the connection position of the feeding pipeline and the control cavity and control the tightness of the feeding pipeline; the flow control is configured to control an amount of reducing agent injected into the control chamber;
furthermore, the gas generation component comprises a rotating groove, a rotating seat, a group of injection heads, a contact cavity and a rotating driving mechanism, wherein the rotating seat is constructed to be in sliding clamping connection with the rotating groove, the group of injection heads are symmetrically arranged on the rotating seat, and the rotating seat is driven to rotate along the direction of the rotating groove firstly by the rotating driving mechanism; the contact cavity is connected with a group of the injection heads through a connecting pipeline;
further, the early warning device further comprises an early warning signal unit, the early warning signal unit detects data of the detection device and the induction device in real time, calls the data of the detection device and the induction device when an early warning signal is triggered, and controls the opening degree of the control device or the adjusting device; and generating a warning message, which is displayed on a display device of the monitoring center; and generates a warning sound.
Example two: this embodiment should be understood to include at least all of the features of any of the foregoing embodiments and further modifications thereon; providing a big data based PNCR denitration optimization system, wherein the optimization system comprises a detection device, a sensing device, a control device, an early warning device, a sampling device, an adjusting device and a processor, and the detection device is configured to detect parameters of a reducing agent in a reaction cavity; the sensing device is configured to sense the reductant; the control device is configured to control a trigger timing of the reducing agent; the early warning device is configured to perform early warning on parameters in the reaction cavity and cooperate with data response of the detection device and the induction device to perform early warning operation; the sampling device is configured to collect the reaction effect of the reaction cavity; the adjusting device is configured to adjust a mixing condition of the reducing agent; the processor is respectively in control connection with the detection device, the induction device, the control device, the early warning device, the sampling device and the adjusting device, and realizes efficient control among the devices based on the centralized operation of the processor, so that the harmful gas can be more reliably and efficiently processed; the acquisition device and the control device acquire data of the sub-reaction chamber and the reaction chamber, so that the treatment and control of the reactant can be specifically developed; the early warning device is matched with the control device for use, so that the controller needs to be controlled by the processor in the process of triggering an alarm and providing the alarm for the processor for processing, and the exhaust gas can be accurately and efficiently expanded in the process of denitration; in this embodiment, the sampling device and the early warning device form a closed loop feedback, and when the reaction effect in the reaction chamber is captured by the sampling device, the early warning of the early warning device can be triggered, so as to realize the operation of regulating and controlling the whole system;
the detection device comprises a detection mechanism and a protection mechanism, wherein the protection mechanism is configured to protect the detection mechanism; the detection mechanism is configured to detect a parameter in the reaction chamber; the detection mechanism includes a detection element configured to be disposed on an angle conversion member and an angle conversion member; the angle conversion member is configured to convert a detection angle of the detection element; the protection mechanism comprises a protection seat, a protection cover and a protection driving mechanism, the protection cover is hinged with the protection seat, and the protection cover is in driving connection with the protection driving mechanism; the detection mechanism is configured to detect a pressure value, a temperature, and a concentration or usage amount of a reducing agent in the reaction chamber; the angle rotating member is configured to rotate the detection angle of the detection element, and the angle detecting member is a technical means well known to those skilled in the art, and thus is not described in detail in this embodiment; the angle conversion component is connected with the detection element to form a detection part, and the angle conversion component can adjust the detection angle of the detection element; the angle conversion component preferably adopts a structure capable of rotating in 360 degrees in all directions; the detection elements include, but are not limited to, the following listed ones: the temperature sensor, the pressure sensor, the concentration sensor and the like are used for detecting data in the reaction cavity; in addition, a storage cavity for accommodating the detection mechanism is arranged on the inner wall of the reaction cavity, the storage cavity penetrates through the inner wall of one side of the reaction cavity, and the storage cavity is matched with the detection mechanism; in addition, the detection mechanism further comprises a protruding unit and a blocking unit, wherein the protruding unit is configured to adjust the detection position of the detection element, so that the detection element can detect at different positions of the reaction cavity, and the detection data of the detection element is more accurate and efficient; the extension unit includes an extension bar, an extension detection member, and an extension driving mechanism, one end of the extension bar is connected to the detection part, the other end of the extension bar is drivingly connected to the extension driving mechanism, and the extension detection member is configured to detect an extension length of the extension bar; the plugging unit comprises a plugging piece and a plugging detection piece, the plugging detection piece is used for detecting the state of the protruding unit, and when the plugging detection piece detects that the protruding unit is in an original state, the plugging detection piece performs a plugging operation on the storage cavity; meanwhile, the blocking piece is configured to block the storage cavity, and the air tightness in the storage cavity of the protruding unit can be ensured when the blocking piece blocks the storage cavity; the protection mechanism triggers the protection operation of the detection mechanism after the detection mechanism retracts and is stored in the storage cavity; the protection mechanism is arranged on the peripheral side of the storage cavity, receives the plugging signal of the plugging unit and triggers the protection operation of the protection mechanism; the protective cover is in driving connection with the protective driving mechanism to form a protective part, the protective part is configured to be arranged on the protective seat and extends out towards one side of the storage cavity, and when the protective part acts, the storage cavity is blocked, so that the sealing performance of the whole storage cavity is further improved; through the matched use of the blocking unit and the protection mechanism, particles of the reducing agent can be prevented from entering the storage cavity in the whole detection element;
the sensing device comprises a sensing mechanism and a screening mechanism, wherein the sensing mechanism is configured to detect a parameter of the reducing agent; the screening mechanism is configured to screen the supply of the reducing agent into the reaction chamber if a set criterion is met; the sensing mechanism comprises a sensing net and a vibrating member, wherein the vibrating member is connected with the sensing net and is used for vibrating reducing agent particles passing through the sensing net; the screening mechanism comprises a screening channel, a poking piece and a poking driving mechanism, and the poking driving mechanism is configured to be in driving connection with the poking piece to form a poking part; a storage cavity for accommodating the shifting part is formed in the screening channel, and the shifting part is hinged with the storage cavity; the induction device is further configured to treat the reducing agent so that the reducing agent is sufficiently treated with the exhaust gas in the pipe after treatment; in this embodiment, the sensing device is disposed in a dedicated processing chamber and performs a supply operation of the reducing agent by means of high-pressure injection; the sensing mechanism detects the quality of the reducing agent and the particles of the reducing agent, and when the quality of the reducing agent is poor, the sensing mechanism prompts an operator or a maintenance worker to replace or treat the reducing agent; the screening mechanism screens the powder of the reducing agent; the screening channel is configured to be arranged on the inner wall of the reaction chamber, and the screening channel is oriented at any angle value between 30 degrees and 75 degrees with the inclination angle of the axis of the reaction chamber, preferably, the screening channel is at 60 degrees with the inclination angle of the reaction chamber; the stirring piece is in driving connection with the stirring driving mechanism to form a stirring part, and the stirring part is arranged in the screening channel and stirs the reducing agent stored in the screening channel so that the reducing agent can fall into the reaction cavity; in this embodiment, the induction network and the vibration member are matched with each other to screen the reducing agent and screen out the qualified reducing agent;
the control device comprises a control cavity, an evacuation mechanism, a feeding mechanism and a loading mechanism, wherein the evacuation mechanism is configured to perform evacuation operation on the control cavity; the feeding mechanism is connected with the loading mechanism, the loading mechanism is arranged on the side wall of the control cavity, and the side wall of the control cavity is provided with an auxiliary pipe for placing the loading mechanism; the material loading mechanism comprises a supporting table and a material loading cavity, a cavity for accommodating the material loading table is formed in one end of the supporting table, and the other end of the supporting table is connected with the inner wall of the control cavity; the control device is matched with the sensing device to control the supply quantity of the reducing agent, and meanwhile, the supply of the reducing agent is adjusted based on an early warning signal of the early warning device; the control cavity is connected with the reaction cavity of the induction device and used for detecting the data of the reducing agent, and the reducing agent after being screened by the screening mechanism of the induction device can be controlled by the control device; the evacuation mechanism comprises a connecting pipeline, a sealing component and a booster pump, and two ends of the connecting pipeline are respectively connected with the auxiliary pipe of the control cavity and the processing cavity, so that the reducing agent screened by the induction device can be transported to a region contacted with or reacted with the waste gas along the connecting pipeline; the sealing member is configured to seal the connection pipe so that the operation of supplying the reducing agent during the pressurization of the control chamber by the booster pump is enabled; the evacuation mechanism and the feeding mechanism are matched with each other, so that the feeding pipeline can efficiently supply the reducing agent in the feeding process; the material loading mechanism is arranged on the inner wall of the auxiliary pipe and supplies the reducing agent through the matching with the feeding mechanism; the evacuation operation comprises the injection of reducing agent powder in the control cavity, so that the reducing agent can be in sufficient contact with the exhaust gas, and the optimization of the exhaust gas treatment is realized; the control device further includes an injection mechanism configured to inject the reducing agent and configured to be disposed in a reaction region; in the present embodiment, the reaction zone is provided in the exhaust gas treatment zone; the injection mechanism comprises an injection nozzle and an injection pipe, the injection nozzle is connected with the injection pipe, the other end of the injection pipe is connected with the control cavity, and the reducing agent in the control cavity can react with the exhaust gas in the reaction area through the injection pipeline; in this embodiment, after the feeding mechanism and the loading mechanism measure the reducing agent, the control chamber can be pressurized by the evacuation mechanism and then the reducing agent can be injected by the injection mechanism;
the feeding mechanism comprises a feeding pipeline, a flow control element and a sealing unit, wherein the sealing unit is configured to be arranged at the joint of the feeding pipeline and the control cavity and control the tightness of the feeding pipeline; the flow control is configured to control an amount of reducing agent injected into the control chamber; the feeding mechanism is matched with the loading mechanism, so that the feeding mechanism can perform metering operation on the reducing agent, and the reducing agent used for absorbing or reacting with the waste gas can be accurately metered; the flow control member is configured to meter the reducing agent stored in the secondary pipe so that the reducing agent can be sufficiently utilized to prevent the waste of the reducing agent; the sealing unit is used for sealing the feeding pipeline and maintaining the pressure value of the control cavity constant, so that the injection mechanism can efficiently and reasonably supply the reducing agent; in addition, the sealing unit is a technical means known to those skilled in the art, and those skilled in the art can query a relevant technical manual to learn the technology, so that details are not repeated in this embodiment;
the early warning device comprises a display mechanism, a processing mechanism and a guide mechanism, wherein the display mechanism is configured to obtain the status of the denitration operation; the processing mechanism is configured to determine one or more transfer fitness distributions along a defined path and to determine extrema of the transfer fitness distributions, to determine optimal control parameter ratios, and to collect data of the sensing device and the sensing device in real time based on the data of the sensing device and the sensing device; the guiding mechanism is configured to convert a standard path diversion suitability distribution from a real distance, monitor a reaction path of the reducing agent in real time, and generate a dynamic adjustment parameter for the adjustment device; the early warning device further comprises a plurality of pipelines and a plurality of detection electronic valves, each detection electronic valve is configured to be arranged on each pipeline and detect the transmission position or the transmission path of the reducing agent, and in the embodiment, each detection electronic valve is arranged in an electronic mode; the display mechanism is used for displaying the moving path and state of the reducing agent, so that monitoring personnel can monitor the denitration process in real time; in addition, the processing mechanism is matched with the display mechanism, so that data detected by the detection device and the sensing device can be summarized and displayed by the display device; the guide mechanism guides the supply paths, and the guide path of the guide mechanism is based on the plan of the processing mechanism; in this embodiment, the exhaust gas is treated by a multi-stage sampling method, that is: through a plurality of injection mechanism handles waste gas in a plurality of positions to, whole early warning system exists a plurality of treatment path, also: the processing pipeline of each injection mechanism and each detection electronic valve arranged on the pipeline form a plurality of processing paths, the embodiment is described by using a processing path at a certain position, and other processing paths are also the same;
the processing mechanism is configured to detect each processing path, monitor the reaction path of the reducing agent in real time and generate dynamic adjustment parameters for the adjusting device; meanwhile, the processing mechanism is also used for determining one or more transfer suitability distributions along the defined path, determining an extreme value of the transfer suitability distribution, determining an optimal control parameter ratio, and collecting data of the detection device and the sensing device in real time; the extreme values include the injection pressure of each process path, the applied concentration of the reducing agent, and the like;
the early warning device also comprises an early warning signal unit, the early warning signal unit detects the data of the detection device and the induction device in real time, calls the data of the detection device and the induction device when an early warning signal is triggered, and controls the opening degree of the control device or the adjusting device; and generating a warning message, which is displayed on a display device of the monitoring center; and generating a warning sound; the early warning device also comprises a limiting rule, wherein the limiting rule is used for limiting detection data collected from an externally monitored DCS (distributed control system), feeding the detection data back to the processor and realizing the efficient processing of the whole system under the control of the processor; the limiting rule comprises a control upper limit value, a control lower limit value, an optimal control value and the like which are used for guiding the adjusting device or the sensing device and the injection amount of the injection mechanism, so that the whole system is in an optimal motion state; when the processing mechanism compares the current data and the upper limit value or the lower limit value of the limit rule is exceeded, early warning operation is triggered; in this embodiment, the warning operation is configured such that the warning signal unit issues a warning signal according to the control of the processor; the early warning signal comprises a warning lamp and a warning sound;
in addition, the sampling device is matched with the early warning device for use, so that sampling data of the sampling device can be transmitted with the processor, and efficient and accurate early warning operation on the early warning signal is realized under the control operation of the processor;
the sampling device comprises a sampling mechanism and a data summarization unit, wherein the sampling mechanism is configured to collect data in the control device and the reaction chamber; and is transmitted with the processor through the communicator; the sampling mechanism comprises a gas generation component, a plurality of position markers and a plurality of sampling pieces, and each sampling piece is constructed to be adsorbed at a sampling position, collects data of the sampling position and transmits the data with the data summarizing unit; each of the position markers is configured to identify a position of each of the sampling pieces and generate a code for the position; the sampling device and the adjusting device are matched with each other for use, so that data in the reaction cavity can be acquired; in this embodiment, each position marker is used in pair with each sampling member, so that data in the reaction chamber, the processing chamber, each processing path and the pipeline can be acquired; meanwhile, the collected data is collected for each sampling piece through the collecting unit, and meanwhile, the data based on each sampling piece is fed back to the early warning device, and the early warning device monitors the sampled data;
the gas generating component comprises a rotating groove, a rotating seat, a group of injection heads, a contact cavity and a rotating driving mechanism, wherein the rotating seat is constructed to be in sliding clamping connection with the rotating groove, the group of injection heads are symmetrically arranged on the rotating seat, and the rotating seat is driven to rotate along the direction of the rotating groove firstly by the rotating driving mechanism; the contact cavity is connected with a group of the injection heads through a connecting pipeline; the gas generation mechanism in the embodiment maintains the reaction area of the injection mechanism, so that the oxygen content in the reaction area is reduced, and the gas generation mechanism is matched with the injection mechanism to treat the waste gas; the gas generating component also comprises a contact cavity, the injection mechanism is arranged in the contact cavity, and an injection port of the injection mechanism is connected with the contact cavity and performs injection in the processing cavity; in addition, the treatment cavity is provided with a plurality of through holes for the waste gas to pass through; the rotation driving mechanism is in driving connection with the rotation seat to form a rotation part and slides along the groove direction of the rotation groove; the group of the injection heads are symmetrically and fixedly connected to the rotating seat and are driven by the rotating seat to rotate; the rotating portion is configured to be disposed on a peripheral side of the contact chamber; inert gas is stored in the contact chamber and is connected with the group of injection heads through the connecting pipeline, so that the oxygen content in the contact chamber is greatly reduced; in the embodiment, the reducing agent sprayed by the spraying mechanism is rapidly decomposed in the contact cavity and reacts with oxynitride in the flue gas to generate nitrogen and water, and the nitrogen and water do not basically react with oxygen in the flue gas; by driving oxygen in the contact cavity, in the process of discharging the waste gas in the constant container, the interference of oxygen is prevented, the discharging speed of the waste gas is reduced, the contact amount of the reducing agent and the waste gas is further enhanced, and the treatment efficiency of the waste gas is ensured to be improved; in this embodiment, the reaction region is disposed within the contact chamber;
the adjustment device includes a primary sensing unit configured to change a period of a second synchronization pulse transmitted to the primary sensing unit to indicate to the primary sensing unit, in response to receiving the first synchronization pulse from the primary sensing unit at the secondary sensing unit: the secondary sensing unit is configured to be synchronized to the primary sensing unit and, in response to receiving a second synchronization pulse from the secondary sensing unit at the primary sensing unit, the primary sensing unit changes a period of the first synchronization pulse to the secondary sensing unit to indicate to the secondary sensing unit; the adjusting device is matched with the sampling device for use, detects the reaction areas of the injection mechanism and the gas generating component, and collects data of conditions in the reaction areas; the main sensing unit and the auxiliary sensing unit detect different parameters and adjust the parameters according to the data of the main sensing unit and the auxiliary sensing unit; the main sensing unit comprises a sensing ball, a sensing layer and an electric power detection piece, wherein the sensing layer is configured to be arranged on the outer surface of the sensing ball, and the electric power detection piece is configured to detect the polarity of the injection mechanism; the electrical property detection part is arranged on the induction layer, and the electrical property detection part sends out a first synchronous pulse after receiving the polarity of the reducing agent sprayed by the spraying mechanism; the main sensing unit is configured to be arranged on a path of a spraying direction of the spraying mechanism, and the periphery of the sensing ball is provided with an arc part which is used for diverging the material of the spraying mechanism, and the arc part is used for diverging the powder of the reducing agent in the contact cavity; the secondary sensing unit includes a sensing tube, a receiving layer configured to be disposed at an outer circumference of the sensing tube; the receiving layer is configured to detect a polarity of the mixed particles after the reducing agent and the exhaust gas have contacted, and to trigger a second synchronization pulse if the polarity is detected; through the matching use between the main induction unit and the auxiliary induction unit, the whole device can carry out information interaction and communication according to the transmission between signal pulses in the using process; meanwhile, in addition, the duration of the information interaction period between the main sensing unit and the auxiliary sensing unit is set by an operator; in this embodiment, the first pulse signal and the second pulse signal of the main sensing unit and the auxiliary sensing unit both need to be amplified, filtered, and the like, and the processes of amplifying, filtering, and noise reduction of the detection signal are technical means well known to those skilled in the art, and those skilled in the art can query a relevant technical manual to obtain the technology, and therefore, details are not repeated in this embodiment.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
In summary, according to the PNCR denitration optimization system based on big data, the reducing agent powder in the control chamber is injected, so that the reducing agent can be in full contact with the exhaust gas, and further optimization of the exhaust gas treatment is achieved; by adopting the early warning device and the control device to be matched for use, the controller needs to be controlled by the processor in the process of triggering the alarm and providing the alarm for the processor for processing, so that the waste gas can be accurately and efficiently expanded in the process of denitration; the extension unit is adopted to adjust the detection position of the detection element, so that the detection element can detect at different positions of the reaction cavity, and the detection data of the detection element is more accurate and efficient; through the matched use of the plugging unit and the protection mechanism, particles of the reducing agent can be prevented from entering the storage cavity in the storage cavity of the whole detection element; screening the reducing agent by adopting mutual matching between the induction network and the vibration component, and screening out qualified reducing agent; the sealing unit is used for sealing the feeding pipeline and maintaining the pressure value of the control cavity constant, so that the injection mechanism can efficiently and reasonably supply the reducing agent; the sampling device is matched with the early warning device for use, so that sampling data of the sampling device can be transmitted with the processor, and efficient and accurate early warning operation on the early warning signal is realized under the control operation of the processor; through adopting driving oxygen in contacting the chamber for waste gas in the in-process of invariable container output, the exhaust speed of reduction has further strengthened the contact of reductant with waste gas, guarantees that the treatment effeciency of waste gas obtains promoting.
Although the invention has been described above with reference to various embodiments, it should be understood that many changes and modifications may be made without departing from the scope of the invention. That is, the methods, systems, and devices discussed above are examples. Various configurations may omit, substitute, or add various procedures or components as appropriate. For example, in alternative configurations, the methods may be performed in an order different than that described, and/or various components may be added, omitted, and/or combined. Moreover, features described with respect to certain configurations may be combined in various other configurations, as different aspects and elements of the configurations may be combined in a similar manner. Further, elements therein may be updated as technology evolves, i.e., many elements are examples and do not limit the scope of the disclosure or claims.
Specific details are given in the description to provide a thorough understanding of the exemplary configurations including implementations. However, configurations may be practiced without these specific details, for example, well-known circuits, processes, algorithms, structures, and techniques have been shown without unnecessary detail in order to avoid obscuring the configurations. This description provides example configurations only, and does not limit the scope, applicability, or configuration of the claims. Rather, the foregoing description of the configurations will provide those skilled in the art with an enabling description for implementing the described techniques. Various changes may be made in the function and arrangement of elements without departing from the spirit or scope of the disclosure.
In conclusion, it is intended that the foregoing detailed description be regarded as illustrative rather than limiting, and that it be understood that these examples are illustrative only and are not intended to limit the scope of the invention. After reading the description of the invention, the skilled person can make various changes or modifications to the invention, and these equivalent changes and modifications also fall into the scope of the invention defined by the claims.
Claims (3)
1. A PNCR denitration optimization system based on big data is characterized by comprising a detection device, a sensing device, a control device, an early warning device, a sampling device, an adjusting device and a processor; the sensing device is configured to sense a reductant; the control device is configured to control a trigger timing of the reducing agent; the early warning device is configured to perform early warning on parameters in the reaction cavity and respond to early warning operation in cooperation with data of the detection device and the induction device; the sampling device is configured to collect the reaction effect of the reaction cavity; the adjusting device is configured to adjust a mixing condition of the reducing agent;
the detection device comprises a detection mechanism and a protection mechanism, wherein the protection mechanism is configured to protect the detection mechanism; the detection device is configured to detect a pressure value, a temperature, and a concentration of the reducing agent in the reaction chamber; the detection mechanism includes a detection element configured to be disposed on an angle conversion member and an angle conversion member; the angle conversion member is configured to convert a detection angle of the detection element; the protection mechanism comprises a protection seat, a protection cover and a protection driving mechanism, the protection cover is hinged with the protection seat, and the protection cover is in driving connection with the protection driving mechanism;
the sensing device comprises a sensing mechanism and a screening mechanism, wherein the sensing mechanism is configured to detect a parameter of the reducing agent; the screening mechanism is configured to screen the supply of the reducing agent into the reaction chamber if a set criterion is met; the sensing mechanism comprises a sensing net and a vibrating member, wherein the vibrating member is connected with the sensing net and is used for vibrating reducing agent particles passing through the sensing net; the screening mechanism comprises a screening channel, a poking piece and a poking driving mechanism, and the poking driving mechanism is in driving connection with the poking piece to form a poking part; a storage cavity for accommodating the shifting part is formed in the screening channel, and the shifting part is hinged with the storage cavity;
the detection mechanism further comprises a protruding unit and a blocking unit, wherein the protruding unit is configured to adjust the detection position of the detection element so that the detection element detects at different positions of the reaction chamber; the extension unit includes an extension bar, an extension detection member, and an extension driving mechanism, one end of the extension bar is connected to the detection part, the other end of the extension bar is drivingly connected to the extension driving mechanism, and the extension detection member is configured to detect an extension length of the extension bar; the inner wall of the reaction cavity is provided with a storage cavity for accommodating the detection mechanism, the storage cavity penetrates through the inner wall of one side of the reaction cavity, and the storage cavity is matched with the detection mechanism; the blocking unit comprises a blocking piece and a blocking detection piece, the blocking detection piece is configured to detect the state of the protruding unit, and when the blocking detection piece detects that the protruding unit is in an original state, the blocking detection piece performs a blocking operation on the storage cavity; the plugging piece is configured to plug the storage cavity, and the plugging piece can ensure the air tightness in the storage cavity of the protruding unit when plugging with the storage cavity;
the control device comprises a control cavity, an evacuation mechanism, a feeding mechanism and a loading mechanism, wherein the evacuation mechanism is configured to perform evacuation operation on the control cavity; the feeding mechanism is connected with the loading mechanism, the loading mechanism is arranged on the side wall of the control cavity, and the side wall of the control cavity is provided with an auxiliary pipe for placing the loading mechanism; the material loading mechanism comprises a supporting table and a material loading cavity, a cavity for accommodating the material loading cavity is formed in one end of the supporting table, and the other end of the supporting table is connected with the inner wall of the control cavity;
the adjustment device includes a primary sensing unit configured to change a period of a second synchronization pulse transmitted to the primary sensing unit to indicate to the primary sensing unit, in response to receiving the first synchronization pulse from the primary sensing unit at the secondary sensing unit: the secondary sensing unit is configured to be synchronized to the primary sensing unit and, in response to receiving a second synchronization pulse from the secondary sensing unit at the primary sensing unit, the primary sensing unit changes a period of the first synchronization pulse to the secondary sensing unit;
the early warning device comprises a display mechanism, a processing mechanism and a guide mechanism, wherein the display mechanism is configured to obtain the status of the denitration operation; the processing mechanism is configured to detect a transport position or path of the reducing agent based on the data of the detection device and the sensing device and to collect the data of the detection device and the sensing device in real time; the guiding mechanism is configured to generate dynamic adjustment parameters for the adjustment device based on monitoring a reaction path of the reducing agent in real time;
the sampling device comprises a sampling mechanism and a data summarization unit, wherein the sampling mechanism is configured to collect data in the control device and the reaction chamber; and is transmitted with the processor through the communicator; the sampling mechanism comprises a gas generation component, a plurality of position markers and a plurality of sampling pieces, and each sampling piece is constructed to be adsorbed at a sampling position, collects data of the sampling position and transmits the data with the data summarizing unit; each of the position markers is configured to identify a position of each of the sampling pieces and generate a code for the position.
2. A big data based PNCR denitration optimisation system as claimed in claim 1 wherein the feed mechanism comprises a feed conduit, a flow control and a sealing unit configured to be positioned at the junction of the feed conduit and the control chamber and to control the tightness of the feed conduit; the flow control is configured to control an amount of reductant injected into the control chamber.
3. A big data-based PNCR denitration optimization system according to claim 2, wherein the gas generation member comprises a rotation groove, a rotation seat, a set of ejection heads, a contact chamber, and a rotation driving mechanism, the rotation seat is configured to be slidably engaged with the rotation groove, the set of ejection heads are symmetrically disposed on the rotation seat and are driven by the rotation driving mechanism to rotate in a direction along the rotation groove; the contact chamber is configured to be connected to a set of the ejection heads through a connection pipe.
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