CN112774415A - Nitrogen oxide conversion device and flue gas monitoring system - Google Patents

Nitrogen oxide conversion device and flue gas monitoring system Download PDF

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Publication number
CN112774415A
CN112774415A CN202011496807.0A CN202011496807A CN112774415A CN 112774415 A CN112774415 A CN 112774415A CN 202011496807 A CN202011496807 A CN 202011496807A CN 112774415 A CN112774415 A CN 112774415A
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CN
China
Prior art keywords
flue gas
nitrogen oxide
conversion device
refrigeration
box
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011496807.0A
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Chinese (zh)
Inventor
高燕宁
刘克成
张立军
杨鹏
周慧波
莫宗宝
韩鹤松
任汉涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Hebei Electric Power Co Ltd
State Grid Hebei Energy Technology Service Co Ltd
Original Assignee
State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Hebei Electric Power Co Ltd
State Grid Hebei Energy Technology Service Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, Electric Power Research Institute of State Grid Hebei Electric Power Co Ltd, State Grid Hebei Energy Technology Service Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN202011496807.0A priority Critical patent/CN112774415A/en
Publication of CN112774415A publication Critical patent/CN112774415A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/76—Gas phase processes, e.g. by using aerosols
    • 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
    • B01D53/04—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 with stationary adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/54—Nitrogen compounds
    • B01D53/56—Nitrogen oxides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B21/00—Machines, plants or systems, using electric or magnetic effects
    • F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2215/00—Preventing emissions
    • F23J2215/10—Nitrogen; Compounds thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2321/00—Details of machines, plants or systems, using electric or magnetic effects
    • F25B2321/02—Details of machines, plants or systems, using electric or magnetic effects using Peltier effects; using Nernst-Ettinghausen effects

Abstract

The invention provides a nitrogen oxide conversion device and a flue gas monitoring system, wherein the nitrogen oxide conversion device is applied to the technical field of flue gas treatment and comprises the following components: the device comprises a smoke inlet pipe, a refrigeration box, a nitrogen oxide converter and a smoke outlet pipe; the inlet end of the smoke inlet pipe is the inlet end of the nitrogen oxide conversion device, the outlet end of the smoke inlet pipe is communicated with the inlet end of the refrigeration box, the outlet end of the refrigeration box is communicated with the inlet end of the nitrogen oxide converter, the outlet end of the nitrogen oxide converter is communicated with the inlet end of the smoke outlet pipe, and the outlet end of the smoke outlet pipe is the outlet end of the nitrogen oxide conversion device. The nitrogen oxide conversion device and the flue gas monitoring system provided by the invention can realize the conversion of nitrogen oxide, and the flue gas monitoring system can conveniently and accurately detect the content of nitrogen oxide in industrial flue gas.

Description

Nitrogen oxide conversion device and flue gas monitoring system
Technical Field
The invention belongs to the technical field of flue gas treatment, and particularly relates to a nitrogen oxide conversion device and a flue gas monitoring system.
Background
With the rapid development of economy, sulfur dioxide and nitrogen oxide discharged by fire coal in China are increased rapidly, so that serious environmental pollution is caused, corresponding laws and regulations are made by the country, and a smoke monitoring system is forcibly installed for some enterprises discharging smoke so as to automatically and continuously monitor related smoke parameters on line. The flue gas discharged by the pollution source contains a large amount of nitrogen oxide NOxAnd the flue gas monitoring system is to NOxThe measurement of gas is limited to NO gas, if a nitrogen oxide conversion device is not added, the concentration of the NO gas can be measured by the flue gas monitoring system, and the NO gas in the flue gas cannot be accurately reflectedxThe content of gas.
Therefore, how to realize the conversion of nitrogen oxides becomes a problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a nitrogen oxide conversion device to realize conversion of nitrogen oxide in industrial flue gas and ensure measurement accuracy of a flue gas monitoring system.
To achieve the above object, the present invention provides a nox conversion device including:
the device comprises a smoke inlet pipe, a refrigeration box, a nitrogen oxide converter and a smoke outlet pipe;
the inlet end of the smoke inlet pipe is the inlet end of the nitrogen oxide conversion device, the outlet end of the smoke inlet pipe is communicated with the inlet end of the refrigeration box, the outlet end of the refrigeration box is communicated with the inlet end of the nitrogen oxide converter, the outlet end of the nitrogen oxide converter is communicated with the inlet end of the smoke outlet pipe, and the outlet end of the smoke outlet pipe is the outlet end of the nitrogen oxide conversion device;
the industrial flue gas to be treated enters the refrigeration box through the flue gas inlet pipe, the refrigeration box refrigerates and adsorbs the industrial flue gas to be treated, the industrial flue gas after refrigeration and adsorption is introduced into the nitrogen oxide converter, the nitrogen oxide converter converts the industrial flue gas after refrigeration and adsorption, and the industrial flue gas after conversion is discharged through the flue gas outlet pipe.
Optionally, the nox conversion device further comprises:
an ozone generator and a limiting plate;
the limiting plate is fixed on the outer surface of the refrigeration box, and the ozone generator is fixed on the limiting plate;
the outlet end of the ozone generator is communicated with the refrigerating box and is used for sterilizing the industrial flue gas in the refrigerating box.
Optionally, the nox conversion device further comprises:
an electromagnetic valve;
the electromagnetic valve is arranged between the smoke inlet pipe and the refrigeration box and used for controlling the flow of industrial flue gas introduced into the refrigeration box from the smoke inlet pipe.
Optionally, the nox conversion device further comprises:
the mounting box and the positioning side plate;
the mounting box is fixed on the positioning side plate, and the positioning side plate is welded on the limiting plate;
a remote control switch and a single chip microcomputer controller are arranged in the mounting box;
the remote control switch is connected with the single chip microcomputer controller and used for generating a first control signal according to the remote control signal and sending the first control signal to the single chip microcomputer controller;
the single chip microcomputer controller is electrically connected with the electromagnetic valve and used for controlling the opening and closing of the electromagnetic valve according to the first control signal.
Optionally, the nox conversion device further comprises:
a gas detector;
the gas detector is fixed on the smoke outlet pipe, and a detection probe of the gas detector is arranged at the outlet end of the smoke outlet pipe and is used for detecting the NO gas content in the converted industrial flue gas;
the gas detector is electrically connected with the single chip microcomputer controller and used for sending a detection result signal of NO gas content to the single chip microcomputer controller;
the single-chip microcomputer controller is also used for controlling the opening and closing of the electromagnetic valve according to the detection result signal.
Optionally, a display is further disposed on the outer surface of the mounting box;
the display is electrically connected with the single chip microcomputer controller and used for displaying control information of the single chip microcomputer controller.
Optionally, a toxic gas alarm is further arranged on the outer surface of the mounting box;
the toxic gas alarm is used for detecting the toxic gas concentration of the peripheral environment of the nitrogen oxide conversion device and giving an alarm when the toxic gas concentration exceeds a preset value.
Optionally, the bottom of the refrigeration box is provided with a semiconductor refrigeration piece and a cooling plate from bottom to top;
the semiconductor refrigeration piece is used for reducing the temperature of the surface of the cooling plate, and the cooling plate is used for refrigerating and cooling the industrial flue gas entering the refrigeration box;
the plane where the inlet end of the refrigeration box is located is the bottom of the refrigeration box.
Optionally, an activated carbon adsorption material is arranged on the cooling plate;
the active carbon adsorption material is used for adsorbing harmful substances in industrial flue gas.
Optionally, a heat insulation layer is arranged on the inner surface layer of the refrigeration box;
the insulating layer is used for preventing the refrigeration case from being disturbed by external temperature.
In order to achieve the purpose, the invention also provides a flue gas monitoring system which comprises the nitrogen oxide conversion device.
The nitrogen oxide conversion device and the flue gas monitoring system provided by the invention have the beneficial effects that:
in the invention, the industrial flue gas can enter the refrigeration box through the flue gas inlet pipe, the refrigeration box carries out refrigeration and adsorption treatment on the industrial flue gas, the industrial flue gas after the refrigeration and adsorption treatment is conveyed to the nitrogen oxide converter, and the nitrogen oxide converter converts nitrogen oxide in the industrial flue gas into NO, thereby ensuring the measurement accuracy of the flue gas monitoring system.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an nox conversion device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a mounting box according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a refrigeration box according to an embodiment of the present invention;
fig. 4 is a partially enlarged schematic view of a refrigeration box body according to an embodiment of the invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified. The terms "inner," "upper," "lower," and the like, refer to an orientation or a state relationship based on that shown in the drawings, which is for convenience in describing and simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. To those of ordinary skill in the art, the specific meanings of the above terms in the present invention are understood according to specific situations.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances in order to facilitate the description of the embodiments of the invention herein.
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an nox conversion device according to an embodiment of the present invention, the nox conversion device includes:
a chimney 14, a refrigeration box 3, a nitrogen oxide converter 7 and a chimney 6.
The inlet end of the smoke inlet pipe 14 is the inlet end of the nitrogen oxide conversion device, the outlet end of the smoke inlet pipe 14 is communicated with the inlet end of the refrigeration box 3, the outlet end of the refrigeration box 3 is communicated with the inlet end of the nitrogen oxide converter 7, the outlet end of the nitrogen oxide converter 7 is communicated with the inlet end of the smoke outlet pipe 6, and the outlet end of the smoke outlet pipe 6 is the outlet end of the nitrogen oxide conversion device.
The industrial flue gas to be treated enters the refrigerating box 3 through the flue gas inlet pipe 14, after the refrigerating box 3 carries out refrigeration and adsorption treatment on the industrial flue gas to be treated, the industrial flue gas after the refrigeration and adsorption treatment is introduced into the nitrogen oxide converter 7, the nitrogen oxide converter 7 carries out conversion treatment on the industrial flue gas after the refrigeration and adsorption treatment, and the industrial flue gas after the conversion treatment is discharged through the flue gas outlet pipe 6.
In this embodiment, the inlet end of the flue gas inlet pipe 14 is the inlet end of the nitrogen oxide conversion device, and is used for introducing the industrial flue gas to be treated.
In this embodiment, the outlet end of the chimney 14 communicates with the inlet end of the refrigeration box 3 for conveying the industrial flue gas to be treated to the refrigeration box 3.
In this embodiment, the refrigeration box 3 is used for refrigerating and adsorbing the industrial flue gas to be treated.
In this embodiment, the outlet end of the refrigeration box 3 is communicated with the inlet end of the nitrogen oxide converter 7, and is used for conveying the industrial flue gas subjected to refrigeration and adsorption treatment to the nitrogen oxide converter 7.
In this embodiment, the outlet end of the nox converter 7 is communicated with the inlet end of the flue pipe 6, and the nox converter 7 performs conversion treatment on the industrial flue gas after the refrigeration and adsorption treatment, and discharges the industrial flue gas after the conversion treatment through the flue pipe 6.
In this embodiment, the chimney 6 and the chimney 14 are both made of stainless steel material.
From the above description, the industrial flue gas can enter the refrigeration box 3 through the flue gas inlet pipe 14, the refrigeration box 3 performs refrigeration and adsorption treatment on the industrial flue gas, and conveys the industrial flue gas after the refrigeration and adsorption treatment to the nitrogen oxide converter 7, and the nitrogen oxide converter 7 converts nitrogen oxide in the industrial flue gas into NO, so that the measurement accuracy of the flue gas monitoring system is ensured.
Optionally, referring to fig. 1, as a specific implementation of the nox conversion device provided by the embodiment of the present invention, the nox conversion device further includes:
an ozone generator 4 and a limit plate 9.
The limiting plate 9 is fixed on the outer surface of the refrigeration box 3, and the ozone generator 4 is fixed on the limiting plate 9.
The outlet end of the ozone generator 4 is communicated with the refrigerating box 3 and is used for sterilizing the industrial flue gas in the refrigerating box 3.
In this embodiment, the limit plate 9 may be fixed to the refrigeration cassette 3 by bolts.
Wherein, can set up the mount pad on limiting plate 9, ozone generator 4 can be fixed on the mount pad, and the exit end of ozone generator 4 communicates with refrigeration case 3 for carry out the virus killing treatment to the industrial flue gas in the refrigeration case 3.
In the embodiment, the industrial flue gas can be sterilized by the ozone generator, so that the safety of flue gas emission is ensured.
Optionally, as a specific implementation manner of the nox conversion apparatus provided by the embodiment of the present invention, the nox conversion apparatus further includes:
and a solenoid valve 15.
The electromagnetic valve 15 is arranged between the smoke inlet pipe 14 and the refrigeration box 3 and is used for controlling the flow of the industrial flue gas introduced into the refrigeration box 3 from the smoke inlet pipe 14.
In this embodiment, the inlet end of the solenoid valve 15 may communicate with the outlet end of the chimney 14, and the outlet end of the solenoid valve 15 may communicate with the inlet end of the refrigeration cassette 3.
In this embodiment, the flow rate of the industrial flue gas introduced into the refrigeration compartment 3 can be adjusted by adjusting the opening and closing of the electromagnetic valve 15.
Optionally, referring to fig. 1 and fig. 2, as a specific implementation of the nox conversion device provided by the embodiment of the present invention, the nox conversion device further includes:
mounting box 10 and positioning side plate 8.
The mounting box 10 is fixed on the positioning side plate 8, and the positioning side plate 8 is welded on the limiting plate 9.
In the present embodiment, the positioning side plate 8 may be welded to the limiting plate 9, and the mounting box 10 may be fixed to the positioning side plate 8 by a positioning bolt.
A remote control switch 12 and a singlechip controller 13 are arranged in the mounting box 10.
The remote control switch 12 is connected to the single chip microcomputer controller 13, and is configured to generate a first control signal according to the remote control signal, and send the first control signal to the single chip microcomputer controller 13.
The single chip microcomputer controller 13 is electrically connected with the electromagnetic valve 15 and is used for controlling the opening and closing of the electromagnetic valve 15 according to a first control signal.
In the present embodiment, as shown in fig. 2, the remote control switch 12 may be fixed to the inner top of the mounting box 10 by screws.
In this embodiment, as shown in fig. 2, the mcu can be fixed to the lower end of the remote control switch 12 by screws.
In this embodiment, the mcu 13 can receive a first control signal from the remote switch 12, generate a second control signal according to the first control signal, and control the opening and closing of the solenoid valve 15 according to the second control signal.
In this embodiment, the remote control switch 12 can be wirelessly connected to the remote control end, so that the user can remotely control the opening and closing of the electromagnetic valve 15.
The remote control end may be a computer end, or may also be a mobile terminal such as a mobile phone, an IPad, and the like, which is not limited herein.
Optionally, as a specific implementation manner of the nox conversion apparatus provided by the embodiment of the present invention, the nox conversion apparatus further includes:
and a gas detector 5.
The gas detector 5 is fixed on the smoke outlet pipe 6, and a detection probe of the gas detector 5 is arranged at the outlet end of the smoke outlet pipe 6 and used for detecting the NO gas content in the converted industrial flue gas.
In this embodiment, the gas detector 5 may be fixed to the wall of the flue pipe 6 by bolts, and the detection probe of the gas detector 5 is disposed at the outlet end of the flue pipe 6, and is used to detect the content of NO gas in the converted industrial flue gas.
The gas detector 5 is electrically connected with the single chip microcomputer controller 13 and is used for sending a detection result signal of NO gas content to the single chip microcomputer controller 13.
The singlechip controller 13 is also used for controlling the opening and closing of the electromagnetic valve 15 according to the detection result signal.
In this embodiment, the industrial flue gas after the refrigeration and adsorption treatment enters into the nitrogen oxide converter 7, so that the nitrogen oxide is converted into NO, and the industrial flue gas after the conversion treatment is discharged through the flue gas outlet pipe 6.
The gas detector 5 detects the NO content in the converted industrial flue gas, and transmits a detection result signal of the NO gas content to the single chip microcomputer controller 13 for processing and analysis.
When the single chip microcomputer controller 13 detects that the NO content exceeds a set value, the single chip microcomputer controller 13 automatically controls the electromagnetic valve 15 to be closed, the conveying of the smoke is stopped, and the safety of emission is improved.
That is, the user can manually control the electromagnetic valve 15 through the remote control switch 12 and the single chip microcomputer controller 13, and the single chip microcomputer controller 13 can also automatically control the electromagnetic valve 15 according to the detection result signal of the gas detector 5.
In the above embodiments, the electrical connection may be a wireless connection or a wire connection, which is not limited herein.
Optionally, as a specific implementation manner of the nox conversion device provided by the embodiment of the present invention, the display 20 is further disposed on an outer surface of the mounting box 10.
The display 20 is electrically connected with the single chip microcomputer controller 13 and is used for displaying control information of the single chip microcomputer controller 13.
In this embodiment, the control information may include the detection data of the gas detector 5, and may also include the current open/close state of the electromagnetic valve 15, which is not limited herein.
Optionally, as a specific implementation manner of the nitrogen oxide conversion device provided in the embodiment of the present invention, a toxic gas alarm 11 is further disposed on an outer surface of the mounting box 10.
The toxic gas alarm 11 is used for detecting the toxic gas concentration of the peripheral environment of the nitrogen oxide conversion device and giving an alarm when the toxic gas concentration exceeds a preset value.
In this embodiment, toxic gas alarm 11 is used for detecting the toxic gas concentration of nitrogen oxide conversion device surrounding environment, and when the toxic gas concentration of nitrogen oxide conversion device surrounding environment is higher and exceeds the preset value of toxic gas alarm 11, the alarm will automatically occur to toxic gas alarm 11, and the manager is reminded.
Optionally, referring to fig. 3, as a specific implementation manner of the nitrogen oxide conversion device provided in the embodiment of the present invention, a semiconductor cooling plate 18 and a cooling plate 16 are disposed at the bottom of the cooling box 3 from bottom to top.
The semiconductor refrigerating sheet 18 is used for reducing the temperature of the surface of the cooling plate 16, and the cooling plate 16 is used for refrigerating and cooling the industrial flue gas entering the refrigerating box 3.
Wherein, the plane that the entry end of refrigeration case 3 was located is the bottom of refrigeration case 3.
In the present embodiment, the semiconductor chilling plate 18 may be installed at the bottom of the chilling box 3 through a mounting hole.
Wherein, the refrigerating end of the semiconductor refrigerating piece 18 is positioned in the refrigerating box 3.
In this embodiment, the cooling plate 16 may be fixed within the refrigeration case by screws.
In the present embodiment, the semiconductor refrigeration sheet 18 is used to reduce the temperature on the surface of the cooling plate 16 or in the refrigeration box, and the cooling plate 16 is used to refrigerate and cool the industrial flue gas entering the refrigeration box 3.
In this embodiment, the cooling plate 16 may be provided with a preformed hole 17 at equal distances for achieving a rapid cooling in the refrigeration cassette 3.
Optionally, referring to fig. 3, as a specific implementation of the nitrogen oxide conversion device provided in the embodiment of the present invention, an activated carbon adsorbent 21 is disposed on the cooling plate 16.
The activated carbon adsorbent 21 is used for adsorbing harmful substances in industrial flue gas.
In this embodiment, an activated carbon adsorbent 21 may be disposed on the cooling plate 16, wherein the activated carbon adsorbent 21 may adsorb harmful substances in the industrial flue gas in the refrigeration box.
Optionally, referring to fig. 4, as a specific implementation manner of the nitrogen oxide conversion device provided in the embodiment of the present invention, a heat insulation layer 19 is disposed on an inner surface layer of the refrigeration box 3.
The insulation layer 19 serves to protect the refrigeration compartment 3 from outside temperature disturbances.
In the present embodiment, the insulating layer 19 serves to protect the refrigeration cassette 3 from external heat.
The material of the thermal insulation layer 19 may be ceramic fiber.
Optionally, referring to fig. 1, as a specific implementation manner of the nitrogen oxide conversion device provided in the embodiment of the present invention, an installation side plate 2 may be disposed on the limiting plate 9, and a sealing gasket 1 may be disposed on the installation side plate 2, so as to fix the nitrogen oxide conversion device.
Wherein, the sealing gasket 1 can be bonded on the installation side plate 2 through polyurethane glue.
The sealing gasket 1 may be made of polypropylene or acrylonitrile-butadiene-styrene copolymer.
Optionally, as a specific implementation manner of the nitrogen oxide conversion device provided in the embodiment of the present invention, an embodiment of the present invention further provides a flue gas monitoring system, where the flue gas monitoring system includes the nitrogen oxide conversion device.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A nox conversion device, comprising:
the device comprises a smoke inlet pipe, a refrigeration box, a nitrogen oxide converter and a smoke outlet pipe;
the inlet end of the smoke inlet pipe is the inlet end of the nitrogen oxide conversion device, the outlet end of the smoke inlet pipe is communicated with the inlet end of the refrigeration box, the outlet end of the refrigeration box is communicated with the inlet end of the nitrogen oxide converter, the outlet end of the nitrogen oxide converter is communicated with the inlet end of the smoke outlet pipe, and the outlet end of the smoke outlet pipe is the outlet end of the nitrogen oxide conversion device;
the industrial flue gas to be treated enters the refrigeration box through the flue gas inlet pipe, the refrigeration box refrigerates and adsorbs the industrial flue gas to be treated, the industrial flue gas after refrigeration and adsorption is introduced into the nitrogen oxide converter, the nitrogen oxide converter converts the industrial flue gas after refrigeration and adsorption, and the industrial flue gas after conversion is discharged through the flue gas outlet pipe.
2. The nox conversion device according to claim 1, further comprising:
an ozone generator and a limiting plate;
the limiting plate is fixed on the outer surface of the refrigeration box, and the ozone generator is fixed on the limiting plate;
the outlet end of the ozone generator is communicated with the refrigerating box and is used for sterilizing the industrial flue gas in the refrigerating box.
3. The nitrogen oxide conversion device according to claim 2, further comprising:
an electromagnetic valve;
the electromagnetic valve is arranged between the smoke inlet pipe and the refrigeration box and used for controlling the flow of industrial flue gas introduced into the refrigeration box from the smoke inlet pipe.
4. The nitrogen oxide conversion device according to claim 3, further comprising:
the mounting box and the positioning side plate;
the mounting box is fixed on the positioning side plate, and the positioning side plate is welded on the limiting plate;
a remote control switch and a single chip microcomputer controller are arranged in the mounting box;
the remote control switch is connected with the single chip microcomputer controller and used for generating a first control signal according to the remote control signal and sending the first control signal to the single chip microcomputer controller;
the single chip microcomputer controller is electrically connected with the electromagnetic valve and used for controlling the opening and closing of the electromagnetic valve according to the first control signal.
5. The nitrogen oxide conversion device according to claim 4, further comprising:
a gas detector;
the gas detector is fixed on the smoke outlet pipe, and a detection probe of the gas detector is arranged at the outlet end of the smoke outlet pipe and is used for detecting the NO gas content in the converted industrial flue gas;
the gas detector is electrically connected with the single chip microcomputer controller and used for sending a detection result signal of NO gas content to the single chip microcomputer controller;
the single-chip microcomputer controller is also used for controlling the opening and closing of the electromagnetic valve according to the detection result signal.
6. The apparatus for converting nitrogen oxides according to claim 4, wherein a display is further provided on an outer surface of said mounting case;
the display is electrically connected with the single chip microcomputer controller and used for displaying control information of the single chip microcomputer controller.
7. The apparatus for converting nitrogen oxides according to claim 4, wherein a toxic gas alarm is further provided on an outer surface of said mounting box;
the toxic gas alarm is used for detecting the toxic gas concentration of the peripheral environment of the nitrogen oxide conversion device and giving an alarm when the toxic gas concentration exceeds a preset value.
8. The nitrogen oxide conversion device according to claim 1, wherein a semiconductor cooling fin and a cooling plate are arranged on the bottom of the cooling box from bottom to top;
the semiconductor refrigeration piece is used for reducing the temperature of the surface of the cooling plate, and the cooling plate is used for refrigerating and cooling the industrial flue gas entering the refrigeration box;
the plane where the inlet end of the refrigeration box is located is the bottom end face of the refrigeration box.
9. The apparatus for converting nitrogen oxides as defined in claim 8, wherein said cooling plate is provided with an activated carbon adsorbent;
the active carbon adsorption material is used for adsorbing harmful substances in industrial flue gas;
the inner surface layer of the refrigeration box is provided with a heat insulation layer;
the insulating layer is used for preventing the refrigeration case from being disturbed by external temperature.
10. A flue gas monitoring system, comprising a nox conversion device according to any one of claims 1 to 9.
CN202011496807.0A 2020-12-17 2020-12-17 Nitrogen oxide conversion device and flue gas monitoring system Pending CN112774415A (en)

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JPH04315027A (en) * 1991-04-12 1992-11-06 Babcock Hitachi Kk Combustion exhaust gas analysis device
CN209589983U (en) * 2019-02-15 2019-11-05 铜陵蓝光电子科技有限公司 A kind of nitrogen oxides converter for flue gas discharge continuous monitoring system
CN210495922U (en) * 2019-06-27 2020-05-12 广州市康妆化妆品有限公司 System for treating industrial waste gas
CN111443168A (en) * 2020-04-26 2020-07-24 上海应用技术大学 Boiler flue gas nitrogen oxide monitoring alarm system

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Publication number Priority date Publication date Assignee Title
JPH04315027A (en) * 1991-04-12 1992-11-06 Babcock Hitachi Kk Combustion exhaust gas analysis device
CN209589983U (en) * 2019-02-15 2019-11-05 铜陵蓝光电子科技有限公司 A kind of nitrogen oxides converter for flue gas discharge continuous monitoring system
CN210495922U (en) * 2019-06-27 2020-05-12 广州市康妆化妆品有限公司 System for treating industrial waste gas
CN111443168A (en) * 2020-04-26 2020-07-24 上海应用技术大学 Boiler flue gas nitrogen oxide monitoring alarm system

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Application publication date: 20210511