CN116181452A - Camouflage protection system for smoke abatement and temperature reduction of tail gas of diesel generator and control method - Google Patents
Camouflage protection system for smoke abatement and temperature reduction of tail gas of diesel generator and control method Download PDFInfo
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- CN116181452A CN116181452A CN202211704319.3A CN202211704319A CN116181452A CN 116181452 A CN116181452 A CN 116181452A CN 202211704319 A CN202211704319 A CN 202211704319A CN 116181452 A CN116181452 A CN 116181452A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/04—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/01—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust by means of electric or electrostatic separators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/05—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of air, e.g. by mixing exhaust with air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N9/00—Electrical control of exhaust gas treating apparatus
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- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
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- Exhaust Gas After Treatment (AREA)
Abstract
The invention provides a camouflage protection system and a control method for smoke abatement and temperature reduction of tail gas of a diesel generator, and relates to the technical field of engineering camouflage protection. The intelligent smoke-eliminating and temperature-reducing device comprises a novel spray smoke-eliminating and temperature-reducing module, a heat exchange type temperature-reducing and dehumidifying module, a high-voltage static smoke-eliminating module, a mixed air temperature-reducing module and an intelligent control module; the novel spraying smoke abatement cooling module, the heat exchange type cooling dehumidification module, the high-voltage electrostatic smoke abatement module and the air mixing cooling module are sequentially connected through an air duct, wherein the novel spraying smoke abatement cooling module is connected with an exhaust duct of a diesel generator, and the air mixing cooling module is connected with a smoke exhaust device. The exhaust gas of the diesel generator in engineering facilities can be subjected to smoke abatement and temperature reduction treatment, and the thermal infrared and visible light exposure symptoms caused by smoke exhaust of the diesel generator are effectively eliminated.
Description
Technical Field
The invention relates to the technical field of engineering camouflage protection, in particular to a camouflage protection system and a control method for smoke abatement and temperature reduction of tail gas of a diesel generator.
Background
The engineering diesel generator set has high temperature of exhaust gas discharged during operation and large heat load, and the exhaust gas continuously heats the engineering exhaust port, so that the discharged high-temperature black smoke is not matched with the surrounding mountain environment, and obvious thermal infrared exposure symptoms are formed on the engineering exhaust port; when the diesel generator set is started in the initial stage or in sudden load increase, because the diesel is incompletely combusted, a great amount of incompletely combusted black smoke particles are contained in the smoke, and under the weather condition of higher visibility, obvious visible light exposure symptoms are formed at the smoke outlet, so that the method is extremely unfavorable for camouflage protection of engineering.
The current domestic research on smoke elimination and cooling of the tail gas of the engineering diesel generator is less, and the smoke elimination and cooling method or system of the tail gas of the diesel generator developed by some existing mechanisms mostly adopts a spray smoke elimination and cooling or heat exchange and cooling mode, has good effect on smoke elimination, and can effectively eliminate visible light exposure symptoms of an engineering smoke outlet; the effect is limited in the aspect of cooling, and the thermal infrared exposure symptom of the engineering smoke outlet cannot be effectively eliminated; and the water consumption is larger, and the method is not suitable for a power station cooling reservoir and a water shortage project.
Aiming at the defects of the prior art, it is necessary to provide a camouflage protection system and a control method for smoke abatement and temperature reduction of tail gas of a diesel generator, which can solve the problems in the prior art.
Disclosure of Invention
The invention aims to provide a camouflage protection system and a control method for smoke elimination and temperature reduction of tail gas of a diesel generator, which can provide a solution for solving the defects in the prior art, and can carry out smoke elimination and temperature reduction treatment on the tail gas of the engineering diesel generator, thereby effectively eliminating thermal infrared and visible light exposure symptoms caused by smoke exhaust of the engineering diesel generator.
The embodiment of the invention provides a camouflage protection system for smoke abatement and cooling of tail gas of a diesel generator, which comprises a novel spray smoke abatement and cooling module, a heat exchange type cooling and dehumidifying module, a high-voltage electrostatic smoke abatement module, a mixed air cooling module and an intelligent control module;
the novel spray smoke abatement cooling module, the heat exchange type cooling dehumidification module, the high-voltage electrostatic smoke abatement module and the air mixing cooling module are sequentially connected through a ventilation pipeline, wherein the novel spray smoke abatement cooling module is connected with an exhaust pipeline of a diesel generator, and the air mixing cooling module is connected with a smoke exhaust device;
the intelligent control module is respectively and electrically connected with the novel spraying smoke abatement cooling module, the heat exchange type cooling dehumidification module, the high-voltage electrostatic smoke abatement module and the air mixing cooling module.
In some embodiments of the invention, the novel spray smoke abatement cooling module comprises a cooling cabin, wherein a plurality of nozzles are arranged at the top of the cooling cabin, and the nozzles are connected with a first reservoir through a pipeline and a circulating water pump; a liquid level sensor is arranged in the cooling cabin, a water outlet is arranged at the bottom of the cooling cabin, and the water outlet is connected with the first reservoir through a pipeline and a strong drainage pump; the liquid level sensor, the circulating water pump and the strong draining pump are respectively connected with the intelligent control module.
In some embodiments of the invention, the heat exchange type cooling and dehumidifying module comprises a heat exchange cabin and a heat exchange pipe arranged in the heat exchange cabin, wherein the heat exchange pipe is connected with a second reservoir through a pipeline and a circulating water pump; the first reservoir is communicated with the second reservoir, and water exchanging ports are formed in the first reservoir and the second reservoir.
In some embodiments of the invention, the air mixing cooling module comprises an air mixing box body, a fresh air inlet, a tail gas air inlet and an exhaust outlet are formed in the air mixing box body, the tail gas air inlet is communicated with the high-voltage electrostatic smoke abatement module, and a centrifugal fan is arranged at the joint; the exhaust outlet is arranged at the tail end of the air mixing box body in the downwind direction; a first temperature sensor and a first wind speed sensor are arranged at the tail gas air inlet; the fresh air inlet is externally connected with a fresh air fan, a second temperature sensor is arranged at the fresh air inlet, and a third temperature sensor is arranged at the exhaust outlet; the centrifugal fan, the first temperature sensor, the first wind speed sensor, the second temperature sensor and the third temperature sensor are respectively connected with the intelligent control module.
In some embodiments of the present invention, a fourth temperature sensor is disposed on a ventilation pipeline between the novel spray smoke abatement cooling module and the diesel generator, a fifth temperature sensor is disposed on a water inlet pipeline of the novel spray smoke abatement cooling module, and a sixth temperature sensor is disposed on a water inlet pipeline of the heat exchange type cooling dehumidification module.
In some embodiments of the present invention, the intelligent control module includes a PLC controller, a frequency converter, and a touch screen, where the PLC controller is electrically connected to the frequency converter and the touch screen, respectively; the frequency converter is connected with the fresh air fan and used for controlling the rotating speed of the fresh air fan; and the touch screen is provided with a communication interface.
In some embodiments of the present invention, the high-voltage static electricity smoke abatement module includes a high-voltage static electricity smoke abatement cabin and a high-voltage power supply, the high-voltage power supply is arranged on the inner wall of the high-voltage static electricity smoke abatement cabin, a smoke meter is arranged at the inlet of the high-voltage static electricity smoke abatement cabin, and the smoke meter is used for detecting the blackness value of the tail gas.
The embodiment of the invention also provides a control method of the camouflage protection system for eliminating smoke and reducing temperature of the tail gas of the diesel generator, which is used for controlling the camouflage protection system to eliminate smoke and reduce temperature of the tail gas of the diesel generator, and comprises the following steps:
Starting the novel spray smoke elimination and cooling module and the heat exchange type cooling and dehumidifying module to eliminate smoke and cool initial tail gas from the diesel generator in sequence;
when the detected tail gas blackness value of the smoke meter is larger than a target blackness value, starting the high-voltage electrostatic smoke elimination module to eliminate smoke again on the initial tail gas after treatment;
when the detected temperature of the first temperature sensor is larger than a target temperature value, starting the air mixing cooling module to perform air mixing cooling treatment on the initial tail gas after treatment;
and when the detection temperature of the third temperature sensor is smaller than or equal to the target temperature value, discharging the final tail gas obtained after treatment through the smoke gas discharge device.
In some embodiments of the present invention, the step of starting the novel spray smoke abatement cooling module and the heat exchange cooling and dehumidifying module to sequentially perform smoke abatement cooling treatment on the initial tail gas from the diesel generator includes:
starting the novel spray smoke elimination cooling module to spray smoke elimination cooling treatment on the initial tail gas, and introducing the initial tail gas after cooling treatment into the heat exchange type cooling and dehumidifying module;
and starting the heat exchange type cooling and dehumidifying module to perform water-cooling heat exchange and cooling treatment on the treated initial tail gas, and introducing the initial tail gas subjected to heat exchange into the high-voltage electrostatic smoke abatement module.
In some embodiments of the present invention, when the detected temperature of the first temperature sensor is greater than a target temperature value, the step of starting the air mixing cooling module to perform air mixing cooling processing on the initial tail gas after processing includes:
when the detected temperature of the first temperature sensor is larger than a target temperature value, starting the air mixing cooling module to perform air mixing cooling treatment on the initial tail gas after treatment;
when the detection temperature of the third temperature sensor is greater than the target temperature value, the rotating speed of the fresh air fan is regulated through the frequency converter according to the temperature;
when the rotating speed of the fresh air fan reaches the highest rotating speed, and the detection temperature of the third temperature sensor is larger than the target temperature value, the cooling water in the first water reservoir and the cooling water in the second water reservoir are replaced.
Compared with the prior art, the embodiment of the invention has at least the following advantages or beneficial effects:
the invention comprises a novel spray smoke abatement cooling module, a heat exchange type cooling dehumidification module, a high-voltage electrostatic smoke abatement module, a mixed air cooling module and an intelligent control module; the novel spray smoke abatement cooling module, the heat exchange type cooling dehumidification module, the high-voltage electrostatic smoke abatement module and the air mixing cooling module are sequentially connected through a ventilation pipeline, wherein the novel spray smoke abatement cooling module is connected with an exhaust pipeline of a diesel generator, and the air mixing cooling module is connected with a smoke exhaust device; the intelligent control module is respectively and electrically connected with the novel spraying smoke abatement cooling module, the heat exchange type cooling dehumidification module, the high-voltage electrostatic smoke abatement module and the air mixing cooling module. In the smoke abatement treatment, the novel spray smoke abatement and temperature reduction module and the high-voltage electrostatic smoke abatement module work cooperatively under the cooperation of the intelligent control module, the tail gas is cleaned and purified by spraying, and then the final purification treatment is further carried out by the high-voltage electrostatic smoke abatement module, so that the blackness of the smoke is below 1 Bosch; in the tail gas cooling problem, the novel spray smoke abatement cooling module, the heat exchange type cooling dehumidification module and the air mixing cooling module are mutually matched with each other. The high-temperature tail gas is firstly sprayed and cooled step by a novel spraying smoke abatement cooling module, then is further cooled and dehumidified by a heat exchange type cooling and dehumidifying module, finally the flue gas which does not meet the requirement is cooled again by a mixed air cooling module, and finally the temperature of the discharged flue gas meets the design requirement by mixed air; the exhaust smoke abatement and cooling device can solve the shortage of exhaust smoke abatement and cooling equipment of the engineering diesel generator set, can be popularized and installed in engineering, can purify and cool high-temperature black smoke exhausted by the engineering diesel generator, and can improve camouflage protection capability of the engineering.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of a camouflage protection system for smoke abatement and temperature reduction of a diesel generator tail gas in an embodiment of the invention;
FIG. 2 is a functional schematic of a camouflage protection system according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a novel spray smoke abatement and temperature reduction module in an embodiment of the invention;
FIG. 4 is a schematic structural diagram of a cooling module with mixed air according to an embodiment of the present invention;
FIG. 5 is a flow chart of the control method according to an embodiment of the present invention;
FIG. 6 is a flow chart of a control method according to an embodiment of the present invention;
FIG. 7 is a circuit diagram of a control circuit for water pump start-stop operation in accordance with an embodiment of the present invention;
FIG. 8 is a diagram of a fan control circuit in accordance with an embodiment of the present invention;
FIG. 9 is a diagram of a control circuit of a frequency converter according to an embodiment of the present invention;
FIG. 10 is a diagram of a PLC digital quantity input control circuit in an embodiment of the invention;
FIG. 11 is a diagram of a PLC digital quantity output control circuit in an embodiment of the invention;
FIG. 12 is a schematic diagram of a PLC analog input control circuit in an embodiment of the invention;
FIG. 13 is a schematic diagram of a PLC analog output control circuit in an embodiment of the invention;
fig. 14 is a circuit diagram of a touch screen and a PLC connection in an embodiment of the present invention.
Description of the drawings: 100. novel spray smoke abatement cooling module; 110. a cooling cabin; 200. a heat exchange type cooling and dehumidifying module; 300. a high-voltage electrostatic smoke abatement module; 400. a mixed air cooling module; 410. a mixing box body; 411. a fresh air inlet; 412. a tail gas inlet; 413. an exhaust outlet; 420. a first temperature sensor; 430. a second temperature sensor; 440. a third temperature sensor; 450. a centrifugal fan; 460. fresh air blower; 500. an intelligent control module; 600. a first reservoir; 610. and a second reservoir.
Detailed Description
Examples
Referring to fig. 1-14, a schematic structural diagram and a control circuit diagram of a camouflage protection system and a control method for smoke abatement and temperature reduction of tail gas of a diesel generator in an embodiment of the invention are shown;
a camouflage protection system for diesel generator tail gas smoke abatement cooling specifically includes: the novel spraying smoke abatement cooling module 100, the heat exchange type cooling dehumidification module 200, the high-voltage static smoke abatement module 300, the air mixing cooling module 400 and the intelligent control module 500;
The novel spraying smoke abatement cooling module 100, the heat exchange type cooling dehumidifying module 200, the high-voltage static smoke abatement module 300 and the air mixing cooling module 400 are sequentially connected through a ventilation pipeline, wherein the novel spraying smoke abatement cooling module 100 is connected with an exhaust pipeline of a diesel generator, and the air mixing cooling module 400 is connected with a smoke exhaust device;
the intelligent control module 500 is electrically connected with the novel spraying smoke abatement cooling module 100, the heat exchange type cooling dehumidifying module 200, the high-voltage electrostatic smoke abatement module 300 and the air mixing cooling module 400 respectively.
Next, a camouflage protection system for smoke abatement and temperature reduction of the exhaust gas of the diesel generator in the present exemplary embodiment will be further described.
In one implementation manner of this embodiment, referring to fig. 1-2, the smoke abatement and temperature reduction camouflage protection system mainly comprises five modules, namely, a novel spray smoke abatement and temperature reduction module 100, a heat exchange type temperature reduction and dehumidification module 200, a high-voltage static smoke abatement module 300, a mixed air temperature reduction module 400 and an intelligent control module 500, wherein the intelligent control module 500 is respectively and electrically connected with the novel spray smoke abatement and temperature reduction module 100, the heat exchange type temperature reduction and dehumidification module 200, the high-voltage static smoke abatement module 300 and the mixed air temperature reduction module 400, namely, the intelligent control module 500 is used for making the operation of the other four modules, the five modules are sequentially connected through a ventilation pipeline, wherein the novel spray smoke abatement and temperature reduction module 100 is connected with an exhaust pipeline of a diesel generator, namely, the tail gas exhausted from the diesel generator sequentially passes through the five modules, and is respectively subjected to different smoke abatement and temperature reduction treatments, and the mixed air temperature reduction module 400 is connected with a smoke exhaust device, namely, and the tail gas of the diesel generator meets the emission requirements and is exhausted from the smoke exhaust device. The device adopts modularized design, divides and disassembles holistic function into novel spraying smoke abatement cooling submodule, heat transfer type cooling dehumidification submodule, high-voltage static smoke abatement submodule, mixed wind cooling submodule and intelligent control submodule 5 subsystem modules, satisfies top-down's modularization design theory completely during the design.
In one implementation manner of this embodiment, referring to fig. 3, the novel spray smoke abatement cooling module 100 includes a cooling cabin 110, the cooling cabin 110 is divided into a plurality of small cabins with bottoms and tops connected in series in sequence, a plurality of nozzles are arranged at the tops of the cooling cabin 110, a nozzle is correspondingly arranged in each cabin, the nozzle is connected with a first reservoir 600 through a pipeline and a circulating water pump, namely, water in the first reservoir 600 is delivered to the nozzle through the circulating water pump to spray smoke abatement and cooling on tail gas in the cabin through the water supply pipe, wherein the water in the first reservoir 600 is cooling water, the cooling effect and the cooling rate can be improved, the cooling cabins are arranged in multi-stage series, the bottoms are sealed through liquid levels, the liquid seal isolation between the cabins is realized through reasonably controlling the liquid levels at the bottoms of the cabins, the tail gas of a diesel generator passes through the multi-stage cabins one by one according to design, the bottoms or tops of adjacent cabins are communicated at intervals, so that the smoke flows up and down in the cooling cabin 110 in an S line, and the cooling time of the smoke is increased, in the embodiment of this application, the stage is preferably 14; in order to ensure that the high-temperature flue gas is sufficiently cooled and cleaned, the flow velocity of the flue gas in the multi-stage spray cabin cannot be too fast, and the flow velocity of the flue gas is not more than a set value; a liquid level sensor is arranged in the cooling cabin 110, a water outlet is arranged at the bottom of the cooling cabin 110, and the water outlet is connected with the first reservoir 600 through a pipeline and a strong drainage pump; the liquid level sensor, the circulating water pump and the strong drainage pump are respectively connected with the intelligent control module 500, when the system operates, the circulating water pump pumps water in the first water reservoir 600 outside the box body to supply to the nozzles, in the process of spraying smoke abatement and cooling by the nozzles, the front end spray cabin can cause a large amount of evaporation of water due to collision between cooling water and high-temperature flue gas, but the evaporated water vapor gradually cools down and condenses into water in the continuous spray state of the rear section spray cabin in the system, flows into the bottom of the cabin, so as to avoid the phenomenon that the flue gas cannot flow step by step due to the fact that the water stored in the lower part exceeds a communication port between the cabins, the strong drainage pump is started under the action of the liquid level sensor and the intelligent control module 500, and the water is discharged into the first water reservoir 600 for recycling.
When high-temperature tail gas with a certain air inlet speed tangentially enters the novel spray smoke abatement and cooling module 100 through the air inlet pipe, fine particles in the smoke collide with water mist emitted by the nozzle through the cleaning function of multi-stage spray in the module, the gas phase and the solid phase are fully mixed, the fine particles in the smoke are captured and fall into circulating water, and the temperature of the high-temperature tail gas exhausted by the diesel generator in the spray smoke abatement process is also reduced.
It should be noted that, because the temperature of the exhaust gas outlet of the diesel generator exceeds 400 ℃, the temperature of the exhaust gas is still higher after passing through the novel spraying smoke abatement cooling module 100, only a part of black smoke particles in the exhaust gas is cleaned and eliminated, and the exhaust gas still contains part of steam from the designed cooling target value and the blackness value of the exhaust gas, and the exhaust gas is further required to be cooled and dehumidified by being led into the heat exchange type cooling and dehumidifying module 200, and then the exhaust gas is led into the high-voltage static smoke abatement module 300.
In one implementation manner of this embodiment, the heat exchange type cooling and dehumidifying module 200 includes a heat exchange cabin and a heat exchange pipe disposed inside the heat exchange cabin, the heat exchange pipe is connected to the second reservoir 610 through a pipeline and a circulating water pump, that is, the intelligent control module 500 controls the circulating water pump to circulate and convey cooling water in the second reservoir 610 into the heat exchange pipe for heat exchange and cooling, as shown in fig. 1, which is a circuit diagram of start-stop operation control of the water pump in the novel spray smoke abatement cooling module 100 and the heat exchange type cooling and dehumidifying module 200; the first water reservoir 600 is communicated with the second water reservoir 610, and when the water temperature in the first water reservoir 600 rises to be higher than the water temperature in the second water reservoir 610 after the novel spray smoke abatement cooling module 100 works for a period of time, water in the second water reservoir 610 can be supplied into the first water reservoir 600 to reduce the temperature; the water exchanging ports are arranged on the first water reservoir 600 and the second water reservoir 610, when the temperatures of the two water reservoirs are high, the influence on the flue gas cooling effect is avoided, and the cooling water in the first water reservoir 600 and the second water reservoir 610 can be exchanged to maintain the water temperature conveyed to the novel spray smoke abatement cooling module 100 and the heat exchange type cooling dehumidification module 200 to be lower or to exchange the cooling water with lower temperature, so that the cooling purpose is achieved; the two reservoirs are respectively and independently connected with the novel spray smoke abatement cooling module 100 and the heat exchange type cooling dehumidification module 200 to supply water, the cooling processes of the different modules enable the heat of the two reservoirs to be different, and the inner cooling water of the reservoirs can be reused, so that water is saved. In order to improve the heat exchange effect and the heat exchange efficiency, the heat exchange pipes can be thin-wall stainless steel pipes with mechanical strength meeting the requirement, or the heat exchange pipes can be arranged into a plurality of groups, are sequentially arranged in a heat exchange and dehumidification box body from bottom to top, and structurally form a multi-layer heat exchange, temperature reduction and dehumidification module, so that the flue gas is further cooled and dehumidified when sequentially flowing through the multi-layer heat exchange pipes, the flue gas is further cooled in a water cooling and heat exchange mode, and water vapor mixed in the flue gas is removed; the heat exchange time can be increased by increasing the cross section area or the length of the flue gas channel of the heat exchange type cooling and dehumidifying system, so that the heat exchange efficiency is improved.
It should be noted that, under the condition of not considering the water consumption of the cooling water, the effect of reducing the temperature of the tail gas is limited by the temperature of the cooling water (namely, the cold source), namely, the tail gas in the module is cooled to have a limit, namely, the temperature of the tail gas in the reservoir inside the engineering is limited, namely, the limit value of the temperature reduction of the tail gas is reduced to be consistent with the temperature of the water in the reservoir of the engineering, and the effect of spraying, cooling and heat exchanging cannot be accurately and quantitatively calculated and determined on the engineering. And the problem of the water consumption of the cooling water cannot be considered in the practical application in engineering, so that the heat exchange type cooling and dehumidifying module 200 is matched with the front-end novel spraying smoke abatement cooling module 100, and the tail gas cooling effect cannot be fundamentally ensured to reach the design target temperature value. Therefore, it is necessary to design the air-mixing cooling module 400, and the high-voltage electrostatic smoke abatement module 300 is required to purify the flue gas again before introducing the tail gas into the air-mixing cooling module 400.
In one implementation manner of this embodiment, the high-voltage electrostatic smoke abatement module 300 includes a high-voltage electrostatic smoke abatement chamber and a high-voltage power supply, the high-voltage power supply is disposed on an inner wall of the high-voltage electrostatic smoke abatement chamber, and a smoke meter is disposed at an inlet of the high-voltage electrostatic smoke abatement chamber and is used for detecting a blackness value of the exhaust gas.
The soot particles in the tail gas of the diesel generator are removed by spraying and cleaning in the spraying smoke abatement cooling module, but the soot particles are not completely removed, and secondary soot removal is needed, so that after the spraying and cooling, the high-voltage electrostatic soot removal module is designed to further purify the smoke. In terms of structural arrangement, the high-voltage electrostatic elimination module 300 is connected in series at the rear end of the heat exchange type cooling and dehumidifying module 200. The flue gas after spray purification smoke abatement and heat exchange, temperature reduction and dehumidification is introduced into the high-voltage electrostatic smoke abatement module 300. The high-voltage electrostatic smoke removal module ionizes gas molecules in the air by utilizing a high-voltage direct current electric field to generate a large amount of electrons and ions, the electrons and the ions move to two poles under the action of the electric field force, dust particles in the air flow are touched to charge the dust particles in the moving process, the charged particles move to polar plates with opposite charges under the action of the electric field force, free ions in the air move to the two poles under the action of the electric field, the higher the voltage and the electric field intensity are, and the faster the movement speed of the ions is. Due to the movement of ions, an electrical current is formed between the electrodes. Initially, the free ions in the air are less and the current is less. After the voltage is raised to a certain value, ions near the discharge electrode acquire high energy and speed, and when the ions strike neutral atoms in the air, the neutral atoms are decomposed into positive ions and negative ions, and the phenomenon is called air ionization. After air ionization, the number of ions moving between electrodes is greatly increased due to chain reaction, which is shown by the sharp increase of current between electrodes (called corona current), the air becomes a conductor, and high-strength voltage captures black smoke particles to make them negatively charged and captured by positive plates under the action of an electric field, so that dust in smoke is removed.
In one implementation as one of the present examples, the aboveThe air mixing cooling module 400 comprises an air mixing box 410, a fresh air inlet 411, a tail gas air inlet 412 and an exhaust outlet 413 are formed in the air mixing box 410, the tail gas air inlet 412 is communicated with the high-voltage electrostatic smoke abatement module 300, a centrifugal fan 450 is arranged at the joint, flue gas is pumped into the air mixing box 410, negative pressure is formed in channels of the spray cooling smoke abatement module, the heat exchange cooling and dehumidifying module 200 and the high-voltage electrostatic smoke abatement module 300 at the front end of the fan, and the flue gas is prevented from flowing in a system and not smoothly increasing the back pressure of the diesel generator; the exhaust air inlet 412 is provided with a first temperature sensor 420 and a first wind speed sensor, wherein the first temperature sensor 420 is used for measuring the temperature of the flue gas after spraying cooling and heat exchange cooling, and the temperature of the flue gas is referred to as the temperature t of the exhaust gas before mixing 1 The first wind speed sensor is used for detecting the flow q of the exhaust gas discharged into the air mixing box 410 1 The method comprises the steps of carrying out a first treatment on the surface of the The fresh air inlet 411 is externally connected with a fresh air fan 460, and a cooling air with a certain cooling temperature and a certain flow is blown into the air mixing box body 410 through the fresh air fan 460 so as to quickly realize the cooling of the flue gas, and a second temperature sensor 430 is arranged at the fresh air inlet 411, wherein the second temperature sensor 430 is used for detecting the fresh air temperature t 2 The method comprises the steps of carrying out a first treatment on the surface of the The exhaust outlet 413 is arranged at the tail end of the air mixing box 410 in the downwind direction, the cooled tail gas is discharged, a third temperature sensor 440 is arranged at the exhaust outlet 413, and the third temperature sensor 440 is used for detecting the temperature t of the flue gas discharged out of the air mixing box 410 after the cooling treatment 3 The method comprises the steps of carrying out a first treatment on the surface of the The centrifugal fan 450, the first temperature sensor 420, the first wind speed sensor, the second temperature sensor 430, and the third temperature sensor 440 are respectively connected to the intelligent control module 500; a fan control circuit diagram is shown in fig. 8.
The air mixing cooling module 400 essentially realizes rapid cooling by utilizing gas heat convection and heat conduction, and according to the principle of conservation of energy, the heat released by cooling the tail gas is equal to the heat absorbed by fresh air, and can be obtained through calculation:
the heat released in the tail gas cooling process in the air mixing system is as follows:
Q 1 ＝c 1 ·m 1 (t 1 -t x ) The method comprises the steps of carrying out a first treatment on the surface of the Wherein: c 1 Is the specific heat capacity of the tail gas, m 1 Is the tail gas quality，t 1 Is the temperature of tail gas before mixing, t x Is the target temperature of tail gas cooling, and the temperature of the engineering external environment is recorded as t I The average temperature of the living area and the working area in the engineering is recorded as t II Then t x The method comprises the following steps: t is t x ≤max{t I ，t II }+1℃；
Fresh air absorption heat in the tail gas cooling process in the air mixing system is as follows:
Q 2 ＝c 2 ·m 2 (t x -t 2 ) In c 2 Is fresh air specific heat capacity, m 2 Is fresh air quality, t 2 Is the fresh air temperature.
From Q 1 ＝Q 2 ；c 1 ＝c 2 Combining the above formulas, we can get:
the gas is generally measured by volume, the volume of the gas is proportional to the mass, and the formula is formed because the density of the tail gas is approximately equal to that of the fresh air
Q 2 ＝c 2 ·m 2 (t x -t 2 )
Can be converted into:
wherein: v 1 Is the volume of the tail gas, v 2 Is the fresh air volume.
The volume of the gas can be measured by the flow, namely the flow q of the tail gas to be cooled 1 And fresh air flow q 2 The relation of (2) is:
thus, the exhaust gas temperature t is measured by the temperature sensor 1 Fresh air temperature t 2 Final tail gas cooling target temperature t x Is determined by combining the design calculation of the ambient temperature and the wind speedThe sensor measures and calculates the tail gas flow q 1 And then, the data are collected to a processor of the intelligent control module 500, fresh air flow data required by the air mixing cooling system are automatically calculated by utilizing formula programming, and the air supply quantity of the fan is controlled by a PID through a PLC and a frequency converter in the intelligent control module 500, so that the cooling requirement is met.
As an example, a fourth temperature sensor is disposed on the air duct between the novel spraying smoke abatement cooling module 100 and the diesel generator, a fifth temperature sensor is disposed on the water inlet duct of the novel spraying smoke abatement cooling module 100, and a sixth temperature sensor is disposed on the water inlet duct of the heat exchange cooling dehumidification module 200; by arranging the temperature sensor, the temperature sensor is used for detecting the temperature change of the tail gas in different modules and transmitting the temperature change to the intelligent control module 500 for monitoring and displaying.
In one implementation manner of this embodiment, the intelligent control module 500 includes a PLC controller, a frequency converter, and a touch screen, where the touch screen, the PLC controller, the frequency converter, and related low-voltage appliances, and circuits are installed in a control box, and the PLC controller is electrically connected to the frequency converter and the touch screen, respectively, and as shown in fig. 14, the touch screen is a touch screen connection circuit; the frequency converter is connected with the fresh air fan 460 and is used for controlling the rotating speed of the fresh air fan 460, and a control circuit is shown in fig. 9; the touch screen is provided with a communication interface, so that the touch screen can directly upload data to an upper computer, and remote monitoring is realized. The start-stop operation states of the novel wet spray smoke abatement cooling module, the heat exchange type cooling and dehumidifying module 200, the mixed air cooling module 400 and the like are controlled by the intelligent control module 500. The intelligent control module 500 adopts Siemens s7-1200 series PLC as a control core, edits logic control instructions, collects analog data of the system through an analog input interface, uses PID to regulate and output 4-20mA signals to a frequency converter through an analog output interface, and controls the rotating speed of a motor so as to control the circulating water quantity or the air quantity, and is shown in a control circuit diagram of the input and the output of a PLC controller in fig. 10-13; the touch screen displays and controls input, acquires parameters such as external environment temperature, flue gas temperature at each stage, relevant equipment state and the like, displays the parameters on the touch screen, controls the fresh air fan 460 through the frequency converter, realizes comprehensive control of the system, and controls the operation and stop of each subsystem through touch control of the touch screen in a manual mode.
As an example, the control panel of the control box is designed with a manual mode selection switch, an automatic mode selection switch, a stop switch, a buzzer alarm, a silencing/resetting switch, a scram knob switch, a shielding buzzer alarm, a standby button and the like; the control box is internally provided with a power main switch, a fuse, a relay and other common low-voltage appliances of each subsystem, a PCL, a frequency converter, an alternating-current contactor and other control appliances, and a man-machine interaction interface-touch screen, wherein the power main switch is a low-voltage breaker with rated current of 25A; the PLC is selected from the model S7-1200, and is also provided with an expansion input/output module SM1234 in addition to a configuration control main body; the frequency converter is ACS510 type, used for the frequency conversion starting of the fan; an embedded integrated touch screen in a domestic Kunlun state is selected, and the specification and the model are as follows: TPC1162Hi, DC24V input power supply, RS485 communication, it is a high-performance embedded integrated touch screen with advanced Cortex-A8CPU as core (main frequency 1 GHz), the product design adopts 10.4 inch high-brightness TFT liquid crystal display (resolution 800×600), four-wire resistive touch screen (resolution 4096×4096). Meanwhile, MCGS embedded configuration software (running version) is preloaded, so that the system has strong image display and data processing functions, and meanwhile, the system has an RS232 serial port, an RS485 serial port, an external storage card slot and 2 USB interfaces.
As an example, to improve the reliability of the system, the system also employs frame structure programming, watchdog technology to avoid dead circulation, and bypass function, without affecting the normal operation of the system when the frequency converter fails.
It should be noted that most of the watchdog is a timer composed of hardware, and there is a timer controlled by software as the watchdog. When the program runs, the program cannot clear the watchdog, so that the watchdog overflows soon after the program runs, and at the moment, the function of the watchdog is to generate a reset signal to the CPU after the program runs, so that the program returns to the starting point again. The hardware watchdog is a timer circuit, the timing output of the timer circuit is connected to the reset end of the circuit, and the timer is cleared by the program within a certain time range (commonly called as a "watchdog"), so that the timer cannot overflow all the time when the program works normally, and a reset signal cannot be generated. If the program fails, the watchdog is not reset within the timing period, causing the watchdog timer to overflow to generate a reset signal and restart the system. The software watchdog is basically the same as the hardware watchdog, except that the timer on the hardware circuit is replaced by an internal timer of the processor, which can simplify the hardware circuit design, but is inferior to the hardware timer in terms of reliability. The industrial personal computer watchdog is used as a timer for monitoring the scanning time condition of the PLC, and the watchdog technology is often applied to the electronic technology, not only the PLC, but also the singlechip. The watchdog type reset design mainly utilizes the timing reset counter when the CPU works normally, so that the value of the counter does not exceed a certain value, and when the CPU cannot work normally, the counter cannot be reset, the count of the counter exceeds a certain value, and reset pulse is generated, so that the CPU is restored to a normal working state. The watchdog is added, so that the system can automatically recover to a normal working state under the condition that the system crashes due to factors such as potential errors of programs, severe environmental interference and the like and no human intervention exists, and the working reliability of the system is improved.
As an example, in the use process of the frequency converter, the working condition that the frequency converter needs to be operated at 50Hz for a long time and does not perform speed regulation is often encountered; when the frequency converter is in fault, the production process requires the motor to continue to operate, and the frequency converter is required to have a bypass function (bypass mode). To ensure that the motor can operate in the event of a failure of the frequency converter, on the project we need to build a bypass for the frequency converter installation. The frequency converter adopts a bypass function, and the normal operation of the system is not affected when the frequency converter fails. The bypass function is to connect a channel in parallel, and the bypass function in the application of the frequency converter refers to whether the motor is driven by the frequency converter or directly driven by the power frequency power grid, and the process of converting the frequency converter drive into the power frequency drive is usually called bypass switching. The bypass is automatically put into operation when the power unit fails, so that the failed unit is short-circuited, and the standby unit is automatically put into operation, so that the motor is ensured to run more reliably. In any case, the purpose of the bypass is to run the motor through the bypass in case of a failure of the frequency converter. For contactor bypass, the frequency converter may also be isolated for maintenance of the frequency converter when the motor is operating in bypass mode. Because the frequency converter can not disconnect the output load end in operation, the load end is disconnected after the frequency converter stops running. The output terminal cannot apply voltage when the frequency converter is not in use.
After the frequency converter has a power failure, the motor rotates at a high speed in a short time, and the motor presents a generator state, if the power frequency voltage is accessed immediately, the motor enters into braking because of different phases and frequencies, and severe oscillation is generated. Therefore, in design: a. the power supply loop is provided with 1 contactor at the inlet end and the outlet end of the frequency converter respectively; b. the input and output end contacts of the frequency converter are reliably and electrically interlocked with the parallel connection contacts, and preferably, the frequency converter is provided with a contactor group with mechanical interlocking at the same time; c. the frequency converter is stopped to be connected to the power frequency, and short delay is required; the whole control system adopts PLC master control.
As an example, the system also uses PID technology, the PLC collects field parameters and output parameters in real time, and the system automatically corrects internal parameters, so as to realize precise control over the process. PID (Proportional Integral Derivative) control is one of the earliest developed control strategies, and is widely used in industrial process control due to its simple algorithm, good robustness and high reliability, especially in deterministic control systems where accurate mathematical models can be built. The system has a PID control link: temperature t of flue gas outlet of air mixing cooling module 400 3 To be controlled to design target temperature t x +1 is given value, the frequency of the power supply is output by the PID control frequency converter to regulate the rotating speed of the fresh air fan 460, and the fresh air flow of mixed air cooling is regulated to make t 3 ≤t x +1, if the fresh air fan 460 reaches the maximum rotational speed, t can not be reached yet 3 ≤t x +1, the flue gas temperature t after treatment of the spray cooling module, the heat exchange dehumidification cooling module is described 1 Too high, even if the cooling by mixed air can not reach the target value of cooling, the too high temperature of the cooling water is also indicated, and at the moment, the cooling water sources of the spray cooling module and the heat exchange dehumidification cooling module should be replaced so as toGuarantee of final t 3 ≤t x +1。
Referring to fig. 5, an embodiment of the present application further provides a control method of a camouflage protection system for smoke abatement and temperature reduction of a diesel generator tail gas, where the control method is used for controlling the camouflage protection system to smoke abatement and temperature reduction of the diesel generator tail gas, and includes:
s110, starting a novel spray smoke elimination cooling module 100 and a heat exchange cooling dehumidifying module 200 to sequentially perform smoke elimination cooling treatment on initial tail gas from a diesel generator;
s120, when the detected tail gas blackness value of the smoke meter is larger than the target blackness value, starting the high-voltage electrostatic smoke elimination module 300 to eliminate smoke again on the treated initial tail gas;
s130, when the detected temperature of the first temperature sensor 420 is greater than a target temperature value, starting the air mixing cooling module 400 to perform air mixing cooling treatment on the treated initial tail gas;
And S140, when the detected temperature of the third temperature sensor 440 is less than or equal to the target temperature value, discharging the final tail gas obtained after the treatment through a flue gas discharge device.
The operation states of the novel spray smoke abatement cooling module 100, the heat exchange type cooling dehumidifying module 200, the start and stop of the three sub-modules of the air mixing cooling module 400 are all controlled and adjusted by the intelligent control module 500, especially in the tail gas cooling problem, the three sub-modules are mutually matched, namely, after the working states of the novel spray smoke abatement cooling module 100 and the heat exchange type cooling dehumidifying module 200 reach the maximum efficiency, when the cooling effect is still and the design requirement is not met, the air mixing cooling module 400 is started to further cool, and the temperature of the discharged tail gas is reduced to be within the allowable range; in terms of the tail gas purification and smoke abatement, the novel spray smoke abatement and cooling module 100 and the high-voltage electrostatic smoke abatement module 300 work cooperatively under the cooperation of the control module, and fine particles in the smoke are firstly sprayed and cleaned in the spray smoke abatement and cooling module to remove part of the smoke, but are not cleaned yet, and the smoke is sent to the high-voltage electrostatic smoke abatement module 300 for further final purification treatment after continuing the dehumidification effect of the heat exchange type cooling and dehumidifying module 200.
Next, a control method of the camouflage protection system for smoke abatement and temperature reduction of the exhaust gas of the diesel generator in the present exemplary embodiment will be further described.
In one implementation manner in this embodiment, step S110 is described above: starting the novel spray smoke abatement cooling module 100 and the heat exchange cooling dehumidification module 200 to carry out smoke abatement cooling treatment on initial tail gas from a diesel generator in sequence, and specifically comprises the following steps:
starting a novel spraying smoke abatement cooling module 100 to spray smoke abatement cooling treatment on the initial tail gas, and introducing the cooled initial tail gas into a heat exchange type cooling and dehumidifying module 200; the heat exchange type cooling and dehumidifying module 200 is started to perform water cooling heat exchange and cooling treatment on the treated initial tail gas, and the initial tail gas after heat exchange is led into the high-voltage electrostatic smoke abatement module 300.
In one implementation manner in this embodiment, step S120 is described above: when the detected tail gas blackness value of the smoke meter is larger than the target blackness value, starting the high-voltage electrostatic smoke elimination module 300 to perform smoke elimination treatment on the treated initial tail gas again, and specifically comprising the following steps:
after the initial tail gas subjected to heat exchange is introduced into the high-voltage electrostatic smoke elimination module 300, detecting the blackness value of the tail gas by a smoke meter at the inlet end, and when the blackness value of the tail gas is larger than a preset target blackness value, the tail gas represents that black smoke particles in the tail gas are not completely eliminated, and starting the high-voltage electrostatic smoke elimination module 300 to eliminate smoke again; when the exhaust blackness value is detected to be smaller than the preset target blackness value, the high-voltage electrostatic elimination module 300 does not need to be started, and the high-voltage electrostatic elimination module 300 only serves as a ventilation channel.
In one implementation manner in this embodiment, step S130 is described above: when the detected temperature of the first temperature sensor 420 is greater than the target temperature value, the air mixing cooling module 400 is started to perform air mixing cooling treatment on the treated initial tail gas, which specifically includes:
after the tail gas is discharged into the air mixing cooling module 400 through the centrifugal fan 450 at the tail end of the high-voltage electrostatic smoke abatement module 300, when the temperature t of the tail gas detected by the first temperature sensor 420 1 Is greater than a preset target temperature value t x At +1, replaceThe temperature of the tail gas subjected to the cooling treatment by the novel spray smoke abatement cooling module 100 and the heat exchange type cooling dehumidification module 200 does not reach the standard, the air mixing cooling module 400 is required to be started to perform the air mixing cooling treatment on the initial tail gas after the treatment, and when the temperature t of the tail gas after the treatment is detected by the third temperature sensor 440 3 Greater than the target temperature value t x When +1, it means that the temperature of the tail gas after cooling treatment by mixing air is still not up to the standard, at this time, the working frequency and the rotation speed of the motor of the fresh air fan 460 are adjusted by the frequency converter according to the temperature, the fresh air is fed in to increase the air inlet amount of the fresh air fan 460 in unit time, thereby increasing the cooling rate and effect, when the rotation speed of the fresh air fan 460 reaches the highest rotation speed, and the detection temperature t of the third temperature sensor 440 3 Still greater than the target temperature value t x In +1, at this time, the temperature of the cooling water in the first water reservoir 600 or the second water reservoir 610 can be changed to reduce the temperature of the cooling water in the novel spray smoke abatement cooling module 100 and the heat exchange cooling dehumidifying module 200 to further reduce the temperature of the front end treatment, thereby reducing the temperature of the rear end exhaust; conversely, when the detected temperature t of the first temperature sensor 420 1 Greater than the target temperature value t x And when +1, the temperature of the tail gas after the cooling treatment of the novel spray smoke abatement cooling module 100 and the heat exchange type cooling and dehumidifying module 200 reaches the standard, and the tail gas can be directly discharged through an exhaust device.
In one implementation manner in this embodiment, step S140 is described above: when the detected temperature of the third temperature sensor 440 is less than or equal to the target temperature value, the final tail gas obtained after the treatment is discharged through the flue gas discharging device, which specifically includes:
when the temperature t detected by the third temperature sensor 440 is lower than the temperature t detected by the third temperature sensor 440 during the cooling process of the air-mixing cooling module 400 3 Less than or equal to the set target temperature value t x And when the temperature of the tail gas reaches the standard in +1, the tail gas meets the emission requirement, and can be directly discharged through a flue gas discharge device.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The camouflage protection system for smoke abatement and temperature reduction of the tail gas of the diesel generator is characterized by comprising a novel spray smoke abatement and temperature reduction module, a heat exchange type temperature reduction and dehumidification module, a high-voltage electrostatic smoke abatement module, a mixed air temperature reduction module and an intelligent control module;
the novel spray smoke abatement cooling module, the heat exchange type cooling dehumidification module, the high-voltage electrostatic smoke abatement module and the air mixing cooling module are sequentially connected through a ventilation pipeline, wherein the novel spray smoke abatement cooling module is connected with an exhaust pipeline of a diesel generator, and the air mixing cooling module is connected with a smoke exhaust device;
the intelligent control module is respectively and electrically connected with the novel spraying smoke abatement cooling module, the heat exchange type cooling dehumidification module, the high-voltage electrostatic smoke abatement module and the air mixing cooling module.
2. The camouflage protection system for smoke abatement and temperature reduction of tail gas of a diesel generator according to claim 1, wherein the novel spray smoke abatement and temperature reduction module comprises a temperature reduction cabin, a plurality of nozzles are arranged at the inner top of the temperature reduction cabin, and the nozzles are connected with a first reservoir through a pipeline and a circulating water pump; a liquid level sensor is arranged in the cooling cabin, a water outlet is arranged at the bottom of the cooling cabin, and the water outlet is connected with the first reservoir through a pipeline and a strong drainage pump; the liquid level sensor, the circulating water pump and the strong draining pump are respectively connected with the intelligent control module.
3. The camouflage protection system for eliminating smoke and reducing temperature of tail gas of a diesel generator according to claim 2, wherein the heat exchange type cooling and dehumidifying module comprises a heat exchange cabin and a heat exchange pipe arranged in the heat exchange cabin, and the heat exchange pipe is connected with a second reservoir through a pipeline and a circulating water pump; the first reservoir is communicated with the second reservoir, and water exchanging ports are formed in the first reservoir and the second reservoir.
4. The camouflage protection system for eliminating smoke and reducing temperature of tail gas of a diesel generator according to claim 1, wherein the air mixing and cooling module comprises an air mixing box body, a fresh air inlet, a tail gas air inlet and an exhaust outlet are formed in the air mixing box body, the tail gas air inlet is communicated with the high-voltage electrostatic smoke eliminating module, and a centrifugal fan is arranged at the joint; the exhaust outlet is arranged at the tail end of the air mixing box body in the downwind direction; a first temperature sensor and a first wind speed sensor are arranged at the tail gas air inlet; the fresh air inlet is externally connected with a fresh air fan, a second temperature sensor is arranged at the fresh air inlet, and a third temperature sensor is arranged at the exhaust outlet; the centrifugal fan, the first temperature sensor, the first wind speed sensor, the second temperature sensor and the third temperature sensor are respectively connected with the intelligent control module.
5. The camouflage protection system for smoke elimination and temperature reduction of tail gas of a diesel generator according to claim 1, wherein a fourth temperature sensor is arranged on a ventilation pipeline between the novel spray smoke elimination and temperature reduction module and the diesel generator, a fifth temperature sensor is arranged on a water inlet pipeline of the novel spray smoke elimination and temperature reduction module, and a sixth temperature sensor is arranged on a water inlet pipeline of the heat exchange type temperature reduction and dehumidification module.
6. The camouflage protection system for eliminating smoke and reducing temperature of tail gas of a diesel generator according to claim 4, wherein the intelligent control module comprises a PLC (programmable logic controller), a frequency converter and a touch screen, and the PLC is electrically connected with the frequency converter and the touch screen respectively; the frequency converter is connected with the fresh air fan and used for controlling the rotating speed of the fresh air fan; and the touch screen is provided with a communication interface.
7. The camouflage protection system and the control method for smoke abatement and temperature reduction of tail gas of a diesel generator according to claim 1, wherein the high-voltage electrostatic smoke abatement module comprises a high-voltage electrostatic smoke abatement cabin and a high-voltage power supply, the high-voltage power supply is arranged on the inner wall of the high-voltage electrostatic smoke abatement cabin, a smoke meter is arranged at the inlet of the high-voltage electrostatic smoke abatement cabin, and the smoke meter is used for detecting the blackness value of the tail gas.
8. A control method of a camouflage protection system for smoke abatement and temperature reduction of a diesel generator exhaust gas according to any one of claims 1 to 7, the control method being for controlling the camouflage protection system to smoke abate and temperature reduction of the diesel generator exhaust gas, comprising:
starting the novel spray smoke elimination and cooling module and the heat exchange type cooling and dehumidifying module to eliminate smoke and cool initial tail gas from the diesel generator in sequence;
when the detected tail gas blackness value of the smoke meter is larger than a target blackness value, starting the high-voltage electrostatic smoke elimination module to eliminate smoke again on the initial tail gas after treatment;
when the detected temperature of the first temperature sensor is larger than a target temperature value, starting the air mixing cooling module to perform air mixing cooling treatment on the initial tail gas after treatment;
and when the detection temperature of the third temperature sensor is smaller than or equal to the target temperature value, discharging the final tail gas obtained after treatment through the smoke gas discharge device.
9. The camouflage protection system and control method for smoke abatement and temperature reduction of tail gas of a diesel generator according to claim 8, wherein the step of starting the novel spray smoke abatement and temperature reduction module and the heat exchange type temperature reduction and dehumidification module to sequentially perform smoke abatement and temperature reduction treatment on initial tail gas from the diesel generator comprises the following steps:
Starting the novel spray smoke elimination cooling module to spray smoke elimination cooling treatment on the initial tail gas, and introducing the initial tail gas after cooling treatment into the heat exchange type cooling and dehumidifying module;
and starting the heat exchange type cooling and dehumidifying module to perform water-cooling heat exchange and cooling treatment on the treated initial tail gas, and introducing the initial tail gas subjected to heat exchange into the high-voltage electrostatic smoke abatement module.
10. The camouflage protection system and the control method for eliminating smoke and reducing temperature of tail gas of a diesel generator according to claim 8, wherein when the detected temperature of the first temperature sensor is greater than a target temperature value, the step of starting the air mixing and cooling module to perform air mixing and cooling treatment on the initial tail gas after treatment comprises the following steps:
when the detected temperature of the first temperature sensor is larger than a target temperature value, starting the air mixing cooling module to perform air mixing cooling treatment on the initial tail gas after treatment;
when the detection temperature of the third temperature sensor is greater than the target temperature value, the rotating speed of the fresh air fan is regulated through the frequency converter according to the temperature;
when the rotating speed of the fresh air fan reaches the highest rotating speed, and the detection temperature of the third temperature sensor is larger than the target temperature value, the cooling water in the first water reservoir and the cooling water in the second water reservoir are replaced.
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| US20100043430A1 (en) * | 2006-12-22 | 2010-02-25 | Volvo Group North America, Inc. | Method and apparatus for controlling exhaust temperature of a diesel engine |
| CN203756279U (en) * | 2014-02-18 | 2014-08-06 | 武汉帕欧机电设备工程有限公司 | Tail gas treatment device of diesel generator |
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| CN111365774A (en) * | 2020-03-08 | 2020-07-03 | 中国人民解放军火箭军工程设计研究院 | Smoke-eliminating, dehumidifying and temperature-regulating system for diesel engine of underground engineering |
| CN111829361A (en) * | 2020-08-03 | 2020-10-27 | 北京华新创科信息技术有限公司 | Smoke abatement cooling system |
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| US20100043430A1 (en) * | 2006-12-22 | 2010-02-25 | Volvo Group North America, Inc. | Method and apparatus for controlling exhaust temperature of a diesel engine |
| CN203756279U (en) * | 2014-02-18 | 2014-08-06 | 武汉帕欧机电设备工程有限公司 | Tail gas treatment device of diesel generator |
| CN105386835A (en) * | 2015-11-12 | 2016-03-09 | 瑞昌哥尔德发电设备(无锡)制造有限公司 | Diesel generating set capable of purifying waste gas |
| CN111365774A (en) * | 2020-03-08 | 2020-07-03 | 中国人民解放军火箭军工程设计研究院 | Smoke-eliminating, dehumidifying and temperature-regulating system for diesel engine of underground engineering |
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