CN112782349A - Organic waste gas detection control method and device - Google Patents
Organic waste gas detection control method and device Download PDFInfo
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- CN112782349A CN112782349A CN201911084238.6A CN201911084238A CN112782349A CN 112782349 A CN112782349 A CN 112782349A CN 201911084238 A CN201911084238 A CN 201911084238A CN 112782349 A CN112782349 A CN 112782349A
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- 239000007789 gas Substances 0.000 title claims abstract description 263
- 238000000034 method Methods 0.000 title claims abstract description 60
- 238000001514 detection method Methods 0.000 title claims abstract description 40
- 239000010815 organic waste Substances 0.000 title abstract description 38
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 119
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 119
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 119
- 238000001816 cooling Methods 0.000 claims abstract description 97
- 238000012545 processing Methods 0.000 claims abstract description 33
- 230000015556 catabolic process Effects 0.000 claims abstract description 27
- 238000006731 degradation reaction Methods 0.000 claims abstract description 27
- 239000013072 incoming material Substances 0.000 claims abstract description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 182
- 239000007788 liquid Substances 0.000 claims description 99
- 229910052757 nitrogen Inorganic materials 0.000 claims description 91
- 238000001179 sorption measurement Methods 0.000 claims description 76
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 32
- 239000001301 oxygen Substances 0.000 claims description 32
- 229910052760 oxygen Inorganic materials 0.000 claims description 32
- 238000004891 communication Methods 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 17
- 238000000605 extraction Methods 0.000 claims description 12
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0073—Control unit therefor
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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
- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
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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
- B01D53/32—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 by electrical effects other than those provided for in group B01D61/00
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/66—Regulating electric power
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
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- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/818—Employing electrical discharges or the generation of a plasma
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Abstract
The embodiment of the invention provides an organic waste gas detection control method, which comprises the following steps: obtaining the total hydrocarbon concentration of the feed gas; and according to the obtained total hydrocarbon concentration of the incoming gas, executing the following operations: under the condition that the total hydrocarbon concentration falls into a first concentration range, enabling the feed gas to enter a plasma reactor for low-temperature plasma degradation treatment; and in the case that the total hydrocarbon concentration falls into a second concentration range, enabling the incoming gas to enter a cooling reactor for cooling treatment. The problem of exist among the prior art when the total hydrocarbon concentration of incoming material gas is too high, the severe gliding can appear in low temperature plasma processing rate, simultaneously under the comparatively violent environment of exhaust gas concentration change, in case the excessive condition of emission concentration appears, lack corresponding reply function is solved.
Description
Technical Field
The invention relates to the technical field of waste gas treatment, in particular to a method and a device for detecting and controlling organic waste gas.
Background
Organic waste gas emission caused by residual oil volatilization, shutdown sweeping, solvent volatilization carried in oil products and the like becomes a great pollution source of air pollution of petroleum, petrochemical and chemical enterprises, and is also one of main sources of VOCs in factories. Along with the increasing emphasis of the country on environmental protection, the relevant regulation standards are increasingly strict, and in order to meet the requirements of national laws and regulations, various refining enterprises begin to implement large-area organic waste gas collection and treatment projects. The most commonly used oil gas treatment device is an oil gas recovery device, but with the stricter and stricter discharge indexes of VOCs in the national environmental protection standard, the standard discharge of VOCs is difficult to realize simply by improving the oil gas recovery efficiency. High standards of environmental protection measures also put higher demands on safety. Plasma is the fourth form of matter, other than gas, liquid, and solid, first proposed in 1879 by british physicist and chemist w. The generation of plasma requires driving energy in the form of electricity, magnetism, light, heat, etc., while gas discharge at high voltage is the most common plasma generation method, and the applied voltage waveform may be in the form of dc, ac, pulse or coupled. Various experiments and researches show that the low-temperature plasma can effectively decompose the organic waste gas, has a remarkable degradation effect particularly on olefins, and has the advantages of low energy consumption, low daily operation cost and the like. However, when the concentration of the organic waste gas is too high, the low-temperature plasma treatment rate can slide down seriously, and under the environment with violent change of the concentration of the waste gas, once the excessive condition of the emission concentration occurs, the corresponding coping function is lacked.
Disclosure of Invention
An object of an embodiment of the present invention is to provide a method and an apparatus for detecting and controlling an organic waste gas, where the method can provide different treatment modes according to a total hydrocarbon concentration of an incoming gas, for example, a plasma reactor can perform a low-temperature plasma degradation treatment on the incoming gas, and when the total hydrocarbon concentration of the incoming gas is too high to exceed a treatment capacity of the plasma reactor, the incoming gas is cooled by a cooling reactor, so as to solve a problem in the prior art that a low-temperature plasma treatment rate seriously slips down when the total hydrocarbon concentration of the incoming gas is too high, and simultaneously, in an environment where a change of a concentration of the exhaust gas is severe, once an excessive emission concentration occurs, a corresponding countermeasure function is lacked.
In order to achieve the above object, an embodiment of the present invention provides an organic exhaust gas detection control method, including:
obtaining the total hydrocarbon concentration of the feed gas; and
according to the obtained total hydrocarbon concentration of the incoming gas, the following operations are carried out:
under the condition that the total hydrocarbon concentration falls into a first concentration range, enabling the feed gas to enter a plasma reactor for low-temperature plasma degradation treatment; and
and in the case that the total hydrocarbon concentration falls into a second concentration range, enabling the incoming gas to enter a cooling reactor for cooling treatment.
Optionally, the method further includes:
and enabling the residual tail gas subjected to the low-temperature plasma degradation treatment or the cooling treatment to enter adsorption equipment for adsorption operation and then to be discharged into air.
Optionally, the method further includes:
and detecting the pressure in the pipeline in real time in the incoming gas treatment process, and stopping the delivery of the incoming gas under the condition that the detected pressure value is greater than or equal to a set pressure value.
Optionally, the method further includes:
detecting the oxygen content in the incoming gas in real time in the incoming gas treatment process, and stopping the conveying of the incoming gas and the air suction of the evacuation port under the condition that the oxygen content value exceeds the set oxygen content range.
Optionally, the performing a low-temperature plasma reaction on the target exhaust gas includes:
and adjusting the output power for supplying power to power supply equipment of the plasma reactor according to the total hydrocarbon concentration of the feed gas so as to adjust the low-temperature plasma degradation treatment capacity.
The embodiment of the invention also provides an organic waste gas detection control device, which comprises:
the total hydrocarbon analyzer is arranged at the incoming gas output port and used for acquiring the total hydrocarbon concentration of the incoming gas;
the plasma reactor is connected with the incoming air output port and used for receiving the incoming air and performing low-temperature plasma degradation treatment on the received incoming air;
the first valve is arranged between the incoming material gas output port and the plasma reactor; and
the cooling reactor is connected with the incoming material gas output port and used for receiving the incoming material gas and cooling the received incoming material gas;
the third valve is arranged between the incoming material gas output port and the cooling reactor;
a controller, connected to the total hydrocarbon analyzer, the cooling reactor, the first valve, the plasma reactor, and the third valve, respectively, and configured to perform the following operations according to the total hydrocarbon concentration of the incoming gas obtained by the total hydrocarbon analyzer:
controlling the first valve to be opened under the condition that the total hydrocarbon concentration falls into a first concentration range, so that the incoming gas flows into the plasma reactor to carry out low-temperature plasma degradation treatment; and
controlling the third valve to open to allow the incoming gas to flow into the cooling reactor for cooling treatment in case the total hydrocarbon concentration falls within a second concentration range;
wherein the first valve interlocks with the third valve.
Optionally, the apparatus further comprises:
the inlet of the adsorption equipment is respectively connected with the output port of the plasma reactor and the output port of the cooling reactor, and the adsorption equipment is used for receiving the residual tail gas subjected to low-temperature plasma degradation treatment or cooling treatment, adsorbing the residual tail gas and then discharging the residual tail gas into air;
the second valve is arranged on a communication pipeline between the adsorption equipment and the cooling reactor, is connected with the controller and is used for controlling the on-off of the pipeline according to a control instruction of the controller; and
and the fourth valve is arranged on a communication pipeline between the adsorption equipment and the plasma reactor, is connected with the controller and is used for controlling the on-off of the pipeline where the fourth valve is arranged according to a control instruction of the controller.
Optionally, the apparatus further comprises:
the pressure detector is used for detecting the oxygen content in the incoming gas in real time in the incoming gas treatment process;
the emergency cut-off valve is used for adjusting the on-off of the feed gas output port;
wherein the controller controls the quick action shut-off valve to shut off the delivery of the incoming gas when the detected pressure value of the pressure monitor is greater than or equal to a set pressure value.
Optionally, the apparatus further comprises:
the oxygen content analyzer is used for detecting the oxygen content in the incoming gas in real time in the incoming gas treatment process;
air extraction means for exhausting the treated gas of the apparatus into the atmosphere;
wherein, under the condition that the oxygen content detection value of the oxygen content analyzer exceeds a set oxygen content range, the controller controls the emergency cut-off valve to cut off the delivery of the incoming gas and controls the air extraction equipment to stop air extraction.
Optionally, the apparatus further comprises:
the power supply equipment is used for providing working current for the plasma reactor;
the transformer is respectively connected with the power supply equipment, the plasma reactor and the controller;
wherein the controller is further used for controlling the transformer to adjust the output power of the power supply equipment according to the total hydrocarbon concentration of the incoming gas so as to adjust the low-temperature plasma degradation processing capacity of the plasma reactor.
Optionally, the cooling reactor is a liquid nitrogen cooling reactor.
Optionally, the apparatus further comprises:
the liquid nitrogen storage tank is connected with the liquid nitrogen cooling reactor and is used for providing liquid nitrogen for cooling reaction for the liquid nitrogen cooling reactor; and
and the low-temperature liquid nitrogen valve is arranged on a communication pipeline between the liquid nitrogen storage tank and the liquid nitrogen cooling reactor, is connected with the controller and is used for controlling the on-off of the communication pipeline according to the instruction of the controller.
Through the technical scheme, the treatment mode of the incoming gas is selected according to the obtained total hydrocarbon concentration of the incoming gas, specifically, under the condition that the total hydrocarbon concentration falls into a first concentration range, the incoming gas enters a plasma reactor to be subjected to low-temperature plasma degradation treatment, and under the condition that the total hydrocarbon concentration falls into a second concentration range, the incoming gas enters a cooling reactor to be subjected to cooling treatment, so that the problems that in the prior art, when the total hydrocarbon concentration of the incoming gas is too high, the low-temperature plasma treatment rate seriously slips down, and under the environment with violent change of waste gas concentration, once the excessive emission concentration occurs, a corresponding coping function is lacked are solved. Namely, different treatment modes are configured for treatment according to the total hydrocarbon concentration of the incoming gas, so that the treated gas reaches the emission standard, and the pollution to the atmosphere is reduced.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
fig. 1A to 1C are schematic structural diagrams of an organic waste gas detection control device according to first to third embodiments of the present invention;
FIG. 2 is a schematic flow chart of a method for detecting and controlling organic waste gas according to a fourth embodiment of the present invention;
fig. 3 is a schematic structural diagram of another organic exhaust gas detection control device according to a fifth embodiment of the present invention;
FIG. 4 is a schematic flow chart of another organic waste gas detection control method according to a sixth embodiment of the present invention;
fig. 5 is a schematic structural diagram of another organic exhaust gas detection control device according to a seventh embodiment of the present invention;
fig. 6 is a schematic flow chart of another organic exhaust gas detection control method according to an eighth embodiment of the present invention.
Description of the reference numerals
99 PLC 101 supplied material gas outlet
102 on-line total hydrocarbon analyzer 201 liquid nitrogen cooling reactor
203 liquid nitrogen valve of 202 liquid nitrogen storage tank
301 first valve 302 second valve
303 third valve 304 fourth valve
401 active carbon adsorption tower 501 low-temperature plasma reactor
502 high-frequency high-voltage power supply 503 high-frequency step-up transformer
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.
The embodiment of the invention provides an organic waste gas detection control method and device, which are used for processing by configuring different processing modes according to the total hydrocarbon concentration of incoming gas so as to realize that the processed gas reaches the emission standard and reduce the pollution to the atmosphere. The organic waste gas detection control device can comprise a total hydrocarbon analyzer, a plasma reactor, power supply equipment for providing electric energy for the plasma reactor, a transformer for adjusting the output power of the power supply equipment, a cooling reactor, a cooling liquid storage tank, adsorption equipment, a plurality of valves and a controller. Specifically, this controller can be PLC, this total hydrocarbon analysis appearance can be total hydrocarbon analysis appearance on line, this plasma reactor can be low temperature plasma reactor, this power equipment can be high frequency high voltage power supply, this transformer can be high frequency step up transformer, this cooling reactor can be liquid nitrogen cooling reactor, this coolant liquid storage tank is liquid nitrogen storage tank promptly under the condition that cooling reactor can be liquid nitrogen cooling reactor, this adsorption equipment can be activated carbon adsorption tower, this valve can be the ball valve. The above-mentioned devices and components can be combined to form an organic waste gas detection control device suitable for solving the corresponding technical problems according to the technical problems to be solved. See in particular the examples below:
example one
Referring to fig. 1A, a schematic structural diagram of an organic waste gas detection control apparatus according to an embodiment of the present invention may include an online total hydrocarbon analyzer 102, a liquid nitrogen cooling reactor 201, a valve (ball valve) 303, and a PLC controller 99, where the online total hydrocarbon analyzer 102 is disposed at a feed gas output 101 and is used for obtaining a total hydrocarbon concentration of a feed gas, the liquid nitrogen cooling reactor 201 is connected to the feed gas output 101, the valve 303 is disposed on a communication pipeline between the feed gas output 101 and the liquid nitrogen cooling liquid reactor 201, and the PLC controller 99 is connected to the online total hydrocarbon analyzer 102 and the valve 303, respectively. Wherein the online total hydrocarbon analyzer 102 obtains the total hydrocarbon concentration of the incoming gas output by the incoming gas output port in real time, and under the condition that the total hydrocarbon concentration of the incoming gas falls within the processing concentration range of the liquid nitrogen cooling reactor 201, the PLC controller 99 controls the valve 303 to open so that the incoming gas flows into the liquid nitrogen cooling reactor 201 for cooling processing. The organic waste gas detection control device provided by the first embodiment can solve the problem that the total hydrocarbon concentration of incoming gas is too high and no corresponding equipment is used for processing in the prior art, and particularly, under the condition that the total hydrocarbon concentration of incoming gas is too high and the processing speed of the existing equipment (such as a fixed frequency plasma reactor) is slow or cannot be processed, the liquid nitrogen cooling reactor 201 can perform corresponding processing, the waste gas processing rate is improved, and the gap of a processing device for the high total hydrocarbon concentration of incoming gas is filled.
Example two
Referring to fig. 1B, which is a schematic structural diagram of an organic waste gas detection control device according to a second embodiment of the present invention, on the basis of the organic waste gas detection control device according to the first embodiment of the present invention, the device may further include a cooling liquid storage tank and a cooling liquid transmission control valve, where in a case where the cooling reactor is a liquid nitrogen cooling reactor 201, the cooling liquid storage tank is a liquid nitrogen storage tank 202, and the cooling liquid transmission control valve is a liquid nitrogen valve 203. That is, the organic waste gas detection control device provided in the second embodiment includes the on-line total hydrocarbon analyzer 102, the liquid nitrogen cooling reactor 201, the liquid nitrogen storage tank 202, the valve 303, the liquid nitrogen valve 203 and the PLC controller 99, wherein the liquid nitrogen storage tank 202 is connected to the liquid nitrogen cooling reactor 201, the liquid nitrogen valve 203 is disposed on a communication pipeline between the liquid nitrogen storage tank 202 and the liquid nitrogen cooling reactor 201, and the PLC controller 99 is respectively connected to the on-line total hydrocarbon analyzer 102, the valve 303 and the liquid nitrogen valve 203. According to the total hydrocarbon concentration of the incoming gas obtained by the on-line total hydrocarbon analyzer 102, in the case that the total hydrocarbon concentration falls within the processing concentration range of the liquid nitrogen cooling reactor 201, the PLC controller 99 controls the valve 303 to open so that the incoming gas flows into the liquid nitrogen cooling reactor 201 for cooling processing. In order to ensure that the liquid nitrogen cooling reactor 201 continuously operates for a long time, the PLC controller 99 may periodically or according to the remaining amount of liquid nitrogen in the cooling reactor 201, supplement liquid nitrogen to the cooling reactor 201, wherein, in case that liquid nitrogen needs to be supplemented to the liquid nitrogen cooling reactor 201, the PLC controller 99 controls a liquid nitrogen valve to open, so that liquid nitrogen in the liquid nitrogen storage tank 202 is supplemented to the liquid nitrogen cooling reactor 201.
EXAMPLE III
Referring to fig. 1C, the structural schematic diagram of an organic waste gas detection control device provided in the third embodiment of the present invention is shown, and on the basis of the organic waste gas detection control device provided in the second embodiment of the present invention, the device may further include an activated carbon adsorption tower 401 and a valve 304, that is, the organic waste gas detection control device provided in the third embodiment of the present invention includes an online total hydrocarbon analyzer 102, a liquid nitrogen cooling reactor 201, a liquid nitrogen storage tank 202, a valve 303, a liquid nitrogen valve 203, an activated carbon adsorption tower 401, a valve 304, and a PLC controller 99, wherein the activated carbon adsorption tower 401 is connected to an output port of the liquid nitrogen cooling reactor 201, and the valve 304 is disposed on a communication pipeline between the activated carbon adsorption tower 401 and the liquid nitrogen cooling reactor 201. According to the total hydrocarbon concentration of the incoming gas obtained by the on-line total hydrocarbon analyzer 102, in the case that the total hydrocarbon concentration falls within the processing concentration range of the liquid nitrogen cooling reactor 201, the PLC controller 99 controls the valve 303 and the valve 304 to be opened so as to allow the incoming gas to flow into the liquid nitrogen cooling reactor 201 for cooling processing, the gas (residual tail gas) processed by the liquid nitrogen cooling reactor 201 flows into the activated carbon adsorption tower 401, the activated carbon adsorption tower 401 performs adsorption operation on the received gas, and the gas subjected to the adsorption operation is discharged into the air through the output port of the activated carbon adsorption tower 401 so as to allow the discharged gas to reach the emission standard. Likewise, in the case where it is necessary to supplement the liquid nitrogen to the liquid nitrogen-cooled reactor 201, the PLC controller 99 controls the liquid nitrogen valve to be opened so that the liquid nitrogen in the liquid nitrogen storage tank 202 is supplemented to the liquid nitrogen-cooled reactor 201.
Example four
Referring to fig. 2, a schematic flow chart of an organic waste gas detection control method according to a fourth embodiment of the present invention is shown, and the method is implemented based on the organic waste gas detection control apparatus shown in fig. 1C, and includes on-line monitoring of a total hydrocarbon concentration of incoming gas, determining whether the total hydrocarbon concentration falls within a treatment concentration range of the liquid nitrogen cooling reactor 201, and in a case that the total hydrocarbon concentration falls within the treatment concentration range of the liquid nitrogen cooling reactor 201, flowing the incoming gas into the liquid nitrogen cooling reactor 201 for cooling treatment, flowing the cooled gas into an activated carbon adsorption tower for adsorption operation, and discharging the gas subjected to adsorption operation from an output port of the activated carbon adsorption tower 401 into air so that the discharged gas meets an emission standard. Similarly, when it is necessary to supply liquid nitrogen to the cooling reactor 201, the liquid nitrogen is periodically supplied to the cooling reactor 201 or supplied to the cooling reactor 201 in accordance with the remaining amount of liquid nitrogen in the cooling reactor 201.
EXAMPLE five
Referring to fig. 3, it is a schematic structural diagram of another organic exhaust gas detection control device provided in the fifth embodiment of the present invention, the device can comprise an online total hydrocarbon analyzer 102, a low-temperature plasma reactor 501, a high-frequency high-voltage power supply 502, a high-frequency step-up transformer 503, an activated carbon adsorption tower 401, a valve 301, a valve 302 and a PLC 99, wherein the on-line total hydrocarbon analyzer 102 is disposed at the feed gas outlet 101 for obtaining the total hydrocarbon concentration of the feed gas, the low-temperature plasma reactor 501 is connected with the incoming material gas output port 101, the valve 301 is arranged on a communicating pipeline between the incoming material gas output port 101 and the low-temperature plasma reactor 501, the activated carbon adsorption tower 401 is connected with an output port of the low-temperature plasma reactor 501, and the valve 302 is arranged on a communication pipeline between the activated carbon adsorption tower 401 and the low-temperature plasma reactor 501. The PLC controller 99 is connected to the on-line total hydrocarbon analyzer 102, the high-frequency high-voltage power supply 502, the high-frequency step-up transformer 503, the valve 301, and the valve 302. According to the total hydrocarbon concentration of the incoming gas obtained by the online total hydrocarbon analyzer 102, under the condition that the total hydrocarbon concentration falls within the processing concentration range of the low-temperature plasma reactor 501, the PLC controller 99 controls the high-frequency high-voltage power supply 502 to supply electric energy to the low-temperature plasma reactor 501 so as to electrify and start the low-temperature plasma reactor 501, and controls the valve 301 and the valve 302 to be opened so as to allow the incoming gas to enter the low-temperature plasma reactor 501 for degradation treatment, wherein under a standard condition (under a condition that the low-temperature plasma reactor 501 is used for waste gas treatment), the incoming gas flows into the low-temperature plasma reactor 501 through the valve 301, and after the incoming gas is degraded by the low-temperature plasma treatment, the tail gas flows into the activated carbon adsorption tower 401 through the valve 302 and is finally subjected to adsorption treatment and then is evacuated through the exhaust mechanism. The PLC controller 99 presets a plurality of sets of total hydrocarbon concentration parameters, and issues different commands according to the total hydrocarbon concentration after the on-line total hydrocarbon analyzer 101 inputs a signal. When the total hydrocarbon concentration of the incoming gas reaches the preset parameters in the PLC controller 99, the PLC controller 99 controls the high-frequency step-up transformer 503 to perform a voltage transformation operation according to the total hydrocarbon concentration, so as to increase or decrease the output power of the high-frequency high-voltage power supply 502, and generate low-temperature plasmas with different strengths required by the organic waste gas treatment in the low-temperature plasma reactor 501, thereby realizing the change of the treatment capability of the low-temperature plasmas, and improving the flexibility of the waste gas treatment of the organic waste gas detection control device, i.e. increasing or decreasing the output power of the high-frequency high-voltage power supply 502 according to the real-time total hydrocarbon concentration, thereby realizing the change of the treatment capability of the low-temperature plasmas, and effectively improving the. Similarly, after the output power of the high-frequency high-voltage power supply 502 is increased or decreased, the gas (residual tail gas) processed by the low-temperature plasma reactor 501 flows into the activated carbon adsorption tower 401, the activated carbon adsorption tower 401 performs an adsorption operation on the received gas, and the gas subjected to the adsorption operation is discharged into the air through the outlet of the activated carbon adsorption tower 401, so that the discharged gas meets the emission standard.
EXAMPLE six
Referring to fig. 4, a schematic flow chart of another organic waste gas detection and control method according to a sixth embodiment of the present invention is provided, and the method is implemented based on the organic waste gas detection and control apparatus shown in fig. 3, and includes on-line monitoring of the total hydrocarbon concentration of incoming gas, determining whether the total hydrocarbon concentration falls within the processing concentration range of the low-temperature plasma reactor 501, and in a case that the total hydrocarbon concentration falls within the processing concentration range of the low-temperature plasma reactor 501, flowing the incoming gas into the low-temperature plasma reactor 501 for degradation treatment. Under a standard working condition, the incoming gas is controlled to enter the low-temperature plasma reactor 501 for plasma treatment and degradation, the degraded tail gas is controlled to enter the activated carbon adsorption tower 401 for adsorption operation, and the tail gas is finally subjected to adsorption treatment and is exhausted through the exhaust mechanism. The output power of the high-frequency high-voltage power supply 502 can be increased or decreased according to the total hydrocarbon concentration to realize the change of the low-temperature plasma processing capacity, after the output power of the high-frequency high-voltage power supply 502 is increased or decreased, the gas subjected to degradation processing by the low-temperature plasma reactor 501 flows into the activated carbon adsorption tower 401 to be subjected to adsorption operation, and the gas subjected to adsorption operation is discharged into the air from the output port of the activated carbon adsorption tower 401, so that the discharged gas reaches the emission standard. Similarly, when it is necessary to supply liquid nitrogen to the cooling reactor 201, the liquid nitrogen is periodically supplied to the cooling reactor 201 or supplied to the cooling reactor 201 in accordance with the remaining amount of liquid nitrogen in the cooling reactor 201.
EXAMPLE seven
Referring to fig. 5, a schematic structural diagram of another organic waste gas detection and control apparatus according to a seventh embodiment of the present invention may include an online total hydrocarbon analyzer 102, a low-temperature plasma reactor 501, a high-frequency high-voltage power supply 502, a high-frequency step-up transformer 503, a liquid nitrogen cooling reactor 201, a liquid nitrogen storage tank 202, an activated carbon adsorption tower 401, a first valve 301, a second valve 302, a third valve 303, a fourth valve 304, a liquid nitrogen valve 202, and a PLC controller 99. The online total hydrocarbon analyzer 102 is arranged at the feed gas output port 101 and is used for obtaining the total hydrocarbon concentration of the feed gas, the input ports of the low-temperature plasma reactor 501 and the liquid nitrogen cooling reactor 201 are both connected with the feed gas output port 101, the first valve 301 is arranged on a communication pipeline between the feed gas output port 101 and the low-temperature plasma reactor 501, and the third valve 303 is arranged on a communication pipeline between the feed gas output port 101 and the liquid nitrogen cooling liquid reactor 201. The output ports of the low-temperature plasma reactor 501 and the liquid nitrogen cooling reactor 201 are both connected with the input port of the activated carbon adsorption tower 401, the second valve 302 is arranged on a communication pipeline between the low-temperature plasma reactor 501 and the activated carbon adsorption tower 401, and the fourth valve 304 is arranged on a communication pipeline between the liquid nitrogen cooling reactor 201 and the activated carbon adsorption tower 401. The output port of the liquid nitrogen storage tank 202 is connected with the liquid injection port of the liquid nitrogen cooling reactor 201, and the liquid nitrogen valve is arranged on the communication pipeline between the liquid nitrogen storage tank 202 and the liquid nitrogen cooling reactor 201. The high-frequency high-voltage power supply 502 is used for supplying electric energy to the low-temperature plasma reactor 501, and the high-frequency high-voltage power supply 502 is used for increasing or decreasing the output power of the high-frequency high-voltage power supply 502. The PLC controller 99 is connected to the on-line total hydrocarbon analyzer 102, the high-frequency high-voltage power supply 502, the high-frequency step-up transformer 503, the first valve 301, the second valve 302, the third valve 303, the fourth valve 304, and the liquid nitrogen valve 202, respectively. The first valve 301 is interlocked with the third valve 303, i.e. the third valve 303 is closed when the first valve 301 is controlled to be open, and the first valve 301 is closed when the third valve 303 is controlled to be open.
The total hydrocarbon concentration of the feed gas is obtained in real time through the on-line total hydrocarbon analyzer 101, the PLC 99 determines the processing mode aiming at the feed gas according to the total hydrocarbon concentration, wherein, in the case where it is determined that the total hydrocarbon concentration falls within the first concentration range (the processing concentration range of the low temperature plasma reactor 501), the PLC controller 99 controls the high frequency high voltage power supply 502 to supply the electric power to the low temperature plasma reactor 501 to power on the low temperature plasma reactor 501 and then start, and controls the first valve 301 and the second valve 302 to open, so that the incoming gas enters the low-temperature plasma reactor 501 for degradation treatment, wherein, under the standard working condition, the incoming gas flows into the low-temperature plasma reactor 501 through the valve 301, after the incoming gas is degraded by the low-temperature plasma treatment, the tail gas flows into the activated carbon adsorption tower 401 through the valve 302, and is exhausted through the exhaust mechanism after the final adsorption treatment. Under the standard working condition, the first valve 301 and the second valve 302 are normally open, and the third valve 303 and the fourth valve 304 and the liquid nitrogen valve 202 are normally closed.
The PLC controller 99 presets a plurality of sets of total hydrocarbon concentration parameters, and issues different commands according to the total hydrocarbon concentration after the on-line total hydrocarbon analyzer 101 inputs a signal. When the total hydrocarbon concentration of the incoming gas reaches the preset parameters in the PLC controller 99, the PLC controller 99 controls the high-frequency step-up transformer 503 to perform a voltage transformation operation according to the total hydrocarbon concentration, so as to increase or decrease the output power of the high-frequency high-voltage power supply 502, and generate low-temperature plasmas with different strengths required by the organic waste gas treatment in the low-temperature plasma reactor 501, thereby realizing the change of the treatment capability of the low-temperature plasmas, and improving the flexibility of the waste gas treatment of the organic waste gas detection control device, i.e. increasing or decreasing the output power of the high-frequency high-voltage power supply 502 according to the real-time total hydrocarbon concentration, thereby realizing the change of the treatment capability of the low-temperature plasmas, and effectively improving the. Similarly, after the output power of the high-frequency high-voltage power supply 502 is increased or decreased, the gas (residual tail gas) processed by the low-temperature plasma reactor 501 flows into the activated carbon adsorption tower 401, the activated carbon adsorption tower 401 performs an adsorption operation on the received gas, and the gas subjected to the adsorption operation is discharged into the air through the outlet of the activated carbon adsorption tower 401, so that the discharged gas meets the emission standard.
In the case where it is determined that the total hydrocarbon concentration falls within the second concentration range (reaches the limit of the processing capacity of the low-temperature plasma reactor 501, falls within the processing concentration range of the liquid nitrogen cooling reactor 201), the PLC controller 99 controls the third valve 303, the fourth valve 304, and the liquid nitrogen valve 202 to be opened (at this time, the first valve 301 and the second valve 302 are automatically closed) so that the incoming gas flows into the liquid nitrogen cooling reactor 201 for cooling processing, the gas (remaining tail gas) processed by the liquid nitrogen cooling reactor 201 flows into the activated carbon adsorption tower 401, the activated carbon adsorption tower 401 performs adsorption operation on the received gas, and the gas subjected to the adsorption operation is discharged into the air from the outlet of the activated carbon adsorption tower 401 so that the discharged gas meets the emission standard.
When the online total hydrocarbon analyzer 101 monitors that the total hydrocarbon concentration of the feed gas is reduced to the acceptable treatment concentration of the low-temperature plasma reactor 501, the PLC controller 99 controls the first valve 301 and the second valve 302 to be opened (at this time, the third valve 303, the fourth valve 304 and the liquid nitrogen valve 202 are automatically closed), and the system work flow under the standard working condition is repeated.
The device can also comprise a pressure detection device, a safety interlock, an emergency shut-off valve and an oxygen content analyzer. The pressure detector is used for detecting the oxygen content in incoming gas in real time in the incoming gas treatment process, the emergency cut-off valve is used for adjusting the on-off of the outgoing port of the incoming gas, the oxygen content analyzer is used for detecting the oxygen content in the incoming gas in real time in the incoming gas treatment process, and the air extraction equipment is arranged at the exhaust port of the activated carbon adsorption tower 401 and used for exhausting gas treated by the device into air. When the pressure detection detects that the pressure in the pipeline is higher than an interlocking value (set pressure value), the interlocking closes the emergency cut-off valve to cut off the delivery of the incoming gas. When the oxygen content analyzer detects that the oxygen content in the feed gas exceeds the interlocking concentration (the set oxygen content range), the interlocking closes the air extraction equipment and the emergency cut-off valve to cut off the feed gas and control the air extraction equipment to stop extracting air. Wherein the oxygen content interlocking concentration is between 1 and 8 percent.
In the above embodiments, the manner of obtaining the first concentration range and the second concentration range, and the power supply power required by the low-temperature plasma reactor 501 for different total hydrocarbon concentrations may be determined by performing a large number of experiments on the concentration ranges.
Example eight
Referring to fig. 6, it is a schematic flow chart of another organic waste gas detection and control method according to an eighth embodiment of the present invention, which is implemented based on the organic waste gas detection and control apparatus shown in fig. 5, and the method is implemented by monitoring the total hydrocarbon concentration of the incoming feed gas on line and selecting a corresponding treatment mode according to the total hydrocarbon concentration of the incoming feed gas to treat the incoming feed gas. The method comprises the steps of monitoring incoming gas on line in real time, obtaining the total hydrocarbon concentration of the incoming gas, and determining a treatment mode aiming at the incoming gas according to the obtained total hydrocarbon concentration of the incoming gas, wherein under the condition that the total hydrocarbon concentration is determined to fall within a first concentration range (the treatment concentration range of a low-temperature plasma reactor 501), the incoming gas enters the low-temperature plasma reactor 501 for degradation treatment, wherein under the standard working condition, the incoming gas flows into the low-temperature plasma reactor 501 through a valve 301, after the incoming gas is degraded through the low-temperature plasma treatment, tail gas flows into an active carbon adsorption tower 401 through a valve 302, and is finally subjected to adsorption treatment and then is exhausted through an exhaust mechanism.
Presetting a plurality of groups of total hydrocarbon concentration parameters, and issuing different commands according to different total hydrocarbon concentrations. When the total hydrocarbon concentration of the incoming material gas reaches a preset parameter, the high-frequency step-up transformer 503 is controlled to perform voltage transformation operation according to the total hydrocarbon concentration, so that the output power of the high-frequency high-voltage power supply 502 is increased or decreased, low-temperature plasmas with different strengths required by organic waste gas treatment are generated in the low-temperature plasma reactor 501, the change of the treatment capability of the low-temperature plasmas is realized, the flexibility of waste gas treatment of the organic waste gas detection control device is improved, namely the output power of the high-frequency high-voltage power supply 502 is increased or decreased according to the real-time total hydrocarbon concentration, the change of the treatment capability of the low-temperature plasmas is realized, the waste gas treatment efficiency can. After increasing or decreasing the output power of the high-frequency high-voltage power supply 502, the gas (residual tail gas) processed by the low-temperature plasma reactor 501 flows into the activated carbon adsorption tower 401, the activated carbon adsorption tower 401 performs an adsorption operation on the received gas, and the gas subjected to the adsorption operation is discharged into the air through an output port of the activated carbon adsorption tower 401, so that the discharged gas meets the emission standard.
In the case where it is determined that the total hydrocarbon concentration falls within the second concentration range (reaches the limit of the processing capacity of the low-temperature plasma reactor 501, falls within the processing concentration range of the liquid nitrogen-cooled reactor 201), the incoming gas is made to flow into the liquid nitrogen-cooled reactor 201 for cooling treatment, the gas (remaining off-gas) processed by the liquid nitrogen-cooled reactor 201 flows into the activated carbon adsorption tower 401 for adsorption operation, and the gas subjected to the adsorption operation is discharged into the air through the outlet of the activated carbon adsorption tower 401 so that the discharged gas meets the emission standard.
When the total hydrocarbon concentration is reduced to an acceptable treatment concentration for low temperature plasma reactor 501, the system workflow under standard operating conditions is repeated.
When the pressure in the pipeline is detected to be higher than an interlocking value (set pressure value) in the exhaust gas treatment process, the interlocking closes the emergency cut-off valve to cut off the delivery of the incoming gas. When the oxygen content in the feed gas is detected to exceed the interlocking concentration (the set oxygen content range), the interlocking closes the air extraction equipment and the emergency cut-off valve to cut off the delivery of the feed gas and control the air extraction equipment to stop air extraction. Wherein the oxygen content interlocking concentration is between 1 and 8 percent.
In the above embodiments, the manner of obtaining the first concentration range and the second concentration range, and the power supply power required by the low-temperature plasma reactor 501 for different total hydrocarbon concentrations may be determined by performing a large number of experiments on the concentration ranges.
The memory may include volatile memory in a computer readable medium, Random Access Memory (RAM) and/or nonvolatile memory such as Read Only Memory (ROM) or flash memory (flash RAM), and the memory includes at least one memory chip.
An embodiment of the present invention provides a storage medium having a program stored thereon, which when executed by a processor implements the method.
The embodiment of the invention provides a processor, which is used for running a program, wherein the program executes the organic waste gas detection control method during running.
The embodiment of the invention provides equipment, which comprises a processor, a memory and a program which is stored on the memory and can run on the processor, wherein the processor executes the program and realizes the following steps: (method claim step, independent + dependent). The device herein may be a server, a PC, a PAD, a mobile phone, etc.
The present application further provides a computer program product adapted to perform a program for initializing the following method steps when executed on a data processing device:
1. an organic exhaust gas detection control method, comprising:
obtaining the total hydrocarbon concentration of the feed gas; and
according to the obtained total hydrocarbon concentration of the incoming gas, the following operations are carried out:
under the condition that the total hydrocarbon concentration falls into a first concentration range, enabling the feed gas to enter a plasma reactor for low-temperature plasma degradation treatment; and
and in the case that the total hydrocarbon concentration falls into a second concentration range, enabling the incoming gas to enter a cooling reactor for cooling treatment.
2. The method of claim 1, further comprising:
and enabling the residual tail gas subjected to the low-temperature plasma degradation treatment or the cooling treatment to enter adsorption equipment for adsorption operation and then to be discharged into air.
3. The method of claim 1, further comprising:
and detecting the pressure in the pipeline in real time in the incoming gas treatment process, and stopping the delivery of the incoming gas under the condition that the detected pressure value is greater than or equal to a set pressure value.
4. The method of claim 1, further comprising:
detecting the oxygen content in the incoming gas in real time in the incoming gas treatment process, and stopping the conveying of the incoming gas and the air suction of the evacuation port under the condition that the oxygen content value exceeds the set oxygen content range.
5. The method of claim 1, performing a low temperature plasma reaction on the target exhaust gas comprising:
and adjusting the output power for supplying power to power supply equipment of the plasma reactor according to the total hydrocarbon concentration of the feed gas so as to adjust the low-temperature plasma degradation treatment capacity.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). The memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (12)
1. An organic exhaust gas detection control method, characterized by comprising:
obtaining the total hydrocarbon concentration of the feed gas; and
according to the obtained total hydrocarbon concentration of the incoming gas, the following operations are carried out:
under the condition that the total hydrocarbon concentration falls into a first concentration range, enabling the feed gas to enter a plasma reactor for low-temperature plasma degradation treatment; and
and in the case that the total hydrocarbon concentration falls into a second concentration range, enabling the incoming gas to enter a cooling reactor for cooling treatment.
2. The method of claim 1, further comprising:
and enabling the residual tail gas subjected to the low-temperature plasma degradation treatment or the cooling treatment to enter adsorption equipment for adsorption operation and then to be discharged into air.
3. The method of claim 1, further comprising:
and detecting the pressure in the pipeline in real time in the incoming gas treatment process, and stopping the delivery of the incoming gas under the condition that the detected pressure value is greater than or equal to a set pressure value.
4. The method of claim 1, further comprising:
detecting the oxygen content in the incoming gas in real time in the incoming gas treatment process, and stopping the conveying of the incoming gas and the air suction of the evacuation port under the condition that the oxygen content value exceeds the set oxygen content range.
5. The method of claim 1, wherein performing the low temperature plasma reaction on the target exhaust gas comprises:
and adjusting the output power of power supply equipment for supplying power to the plasma reactor according to the total hydrocarbon concentration of the feed gas so as to adjust the low-temperature plasma degradation treatment capacity.
6. An organic exhaust gas detection control apparatus, characterized in that the apparatus comprises:
the total hydrocarbon analyzer is arranged at the incoming gas output port and used for acquiring the total hydrocarbon concentration of the incoming gas;
the plasma reactor is connected with the incoming material gas output port and used for receiving the incoming material gas and carrying out low-temperature plasma degradation treatment on the received incoming material gas;
the first valve is arranged between the incoming material gas output port and the plasma reactor; and
the cooling reactor is connected with the incoming material gas output port and used for receiving the incoming material gas and cooling the received incoming material gas;
the third valve is arranged between the incoming material gas output port and the cooling reactor;
a controller, connected to the total hydrocarbon analyzer, the cooling reactor, the first valve, the plasma reactor, and the third valve, respectively, and configured to perform the following operations according to the total hydrocarbon concentration of the incoming gas obtained by the total hydrocarbon analyzer:
controlling the first valve to be opened under the condition that the total hydrocarbon concentration falls into a first concentration range, so that the incoming gas flows into the plasma reactor to carry out low-temperature plasma degradation treatment; and
controlling the third valve to open to allow the incoming gas to flow into the cooling reactor for cooling treatment in case the total hydrocarbon concentration falls within a second concentration range;
wherein the first valve interlocks with the third valve.
7. The apparatus of claim 6, further comprising:
the inlet of the adsorption equipment is respectively connected with the output port of the plasma reactor and the output port of the cooling reactor, and the adsorption equipment is used for receiving the residual tail gas subjected to low-temperature plasma degradation treatment or cooling treatment, adsorbing the residual tail gas and then discharging the residual tail gas into air;
the second valve is arranged on a communication pipeline between the adsorption equipment and the cooling reactor, is connected with the controller and is used for controlling the on-off of the pipeline according to a control instruction of the controller; and
and the fourth valve is arranged on a communication pipeline between the adsorption equipment and the plasma reactor, is connected with the controller and is used for controlling the on-off of the pipeline where the fourth valve is arranged according to a control instruction of the controller.
8. The apparatus of claim 6, further comprising:
the pressure detector is used for detecting the oxygen content in the incoming gas in real time in the incoming gas treatment process;
the emergency cut-off valve is used for adjusting the on-off of the feed gas output port;
wherein the controller controls the quick action shut-off valve to shut off the delivery of the incoming gas when the detected pressure value of the pressure monitor is greater than or equal to a set pressure value.
9. The apparatus of claim 6, further comprising:
the oxygen content analyzer is used for detecting the oxygen content in the incoming gas in real time in the incoming gas treatment process;
air extraction means for exhausting the gas treated by the apparatus into the atmosphere;
wherein, under the condition that the oxygen content detection value of the oxygen content analyzer exceeds a set oxygen content range, the controller controls the emergency cut-off valve to cut off the delivery of the incoming gas and controls the air extraction equipment to stop air extraction.
10. The apparatus of claim 6, further comprising:
the power supply equipment is used for providing working current for the plasma reactor;
the transformer is respectively connected with the power supply equipment, the plasma reactor and the controller;
wherein the controller is further used for controlling the transformer to adjust the output power of the power supply equipment according to the total hydrocarbon concentration of the incoming gas so as to adjust the low-temperature plasma degradation processing capacity of the plasma reactor.
11. The apparatus of claim 6, wherein the cooled reactor is a liquid nitrogen cooled reactor.
12. The apparatus of claim 11, further comprising:
the liquid nitrogen storage tank is connected with the liquid nitrogen cooling reactor and is used for providing liquid nitrogen for cooling reaction for the liquid nitrogen cooling reactor; and
and the low-temperature liquid nitrogen valve is arranged on a communication pipeline between the liquid nitrogen storage tank and the liquid nitrogen cooling reactor, is connected with the controller and is used for controlling the on-off of the communication pipeline according to the instruction of the controller.
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Application publication date: 20210511 |