CN112484065A - Waste heat utilization system of thermal power plant - Google Patents
Waste heat utilization system of thermal power plant Download PDFInfo
- Publication number
- CN112484065A CN112484065A CN202011390039.0A CN202011390039A CN112484065A CN 112484065 A CN112484065 A CN 112484065A CN 202011390039 A CN202011390039 A CN 202011390039A CN 112484065 A CN112484065 A CN 112484065A
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- heat
- subsystem
- boiler
- heat utilization
- thermal power
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- 239000002918 waste heat Substances 0.000 title claims abstract description 46
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000003546 flue gas Substances 0.000 claims abstract description 34
- 238000001514 detection method Methods 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000007689 inspection Methods 0.000 claims abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 235000012239 silicon dioxide Nutrition 0.000 claims description 5
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- 229920000742 Cotton Polymers 0.000 claims description 4
- 238000011897 real-time detection Methods 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 230000005855 radiation Effects 0.000 description 10
- 239000000428 dust Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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- 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
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0044—Furnaces, ovens, kilns
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Sustainable Development (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Regulation And Control Of Combustion (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a waste heat utilization system of a thermal power plant, which belongs to the technical field of thermal power plants and comprises a boiler heat detection subsystem, a radiant heat collection subsystem, a heat utilization subsystem, an auxiliary equipment subsystem and a heat utilization line inspection subsystem, wherein the boiler heat detection subsystem is used for actually measuring the thermal pressure in a boiler, the radiant heat collection subsystem is used for collecting the dissipated heat of the boiler, the heat utilization subsystem is used for recovering the dissipated heat and the waste heat in a tail flue of the boiler for utilization, the auxiliary equipment subsystem is used for recording and registering the number of auxiliary equipment and the power information of a single auxiliary machine, and the heat utilization line inspection subsystem is used for inspecting the faults of a heat utilization line constructed by heat utilization; this system is when waste heat utilization, through the inside flue gas water conservancy diversion detector of flue gas collecting pipe, patrols and examines the inside flue gas water conservancy diversion condition of flue gas collecting pipe, effectively prevents the jam of flue, improves waste heat utilization system's utilization ratio.
Description
Technical Field
The invention belongs to the technical field of thermal power plants, and particularly relates to a waste heat utilization system of a thermal power plant.
Background
The heat loss of the exhaust smoke of the boiler of the thermal power plant is the largest one of various heat losses of the boiler, and the deep utilization of the exhaust smoke waste heat of the boiler is significant. At present, the most common mode of domestic thermal power plants for flue gas waste heat utilization is to additionally arrange a flue gas waste heat utilization device on a tail flue of a boiler, so that not only can the flue gas waste heat be utilized to heat condensed water or cold air, but also other auxiliary equipment of the tail flue is influenced due to the reduction of the exhaust gas temperature, such as the safety of a bag-type dust remover and the dust removal efficiency of an electric dust remover are improved; the power consumption of the induced draft fan can be reduced due to the reduction of the volume of the flue gas caused by the reduction of the temperature; the water consumption of the wet desulfurization system can be reduced due to the reduction of the temperature of the flue gas, but the installation of the flue gas waste heat utilization system increases the resistance of a flue, and the equipment operation of the flue gas waste heat utilization system also increases the power consumption of a plant, so the economical efficiency of installing the flue gas waste heat utilization system needs to be considered.
Disclosure of Invention
The invention aims to provide a waste heat utilization system of a thermal power plant, which can reflect the radiant heat of a boiler, further gather the heat, improve the collection rate of the waste heat and improve the economy of waste heat utilization.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a waste heat utilization system of thermal power plant, this waste heat utilization system of thermal power plant includes boiler heat detection subsystem, radiant heat collection subsystem, heat utilization subsystem, auxiliary machinery equipment subsystem, heat utilization circuit and patrols and examines the subsystem, boiler heat detection subsystem is used for the inside hot pressure real-time detection of boiler, and radiant heat collection subsystem is arranged in retrieving the scattered and lost thermal collection of boiler working process, and the heat utilization subsystem is used for retrieving the scattered and lost heat after collecting and the inside waste heat of boiler afterbody flue and utilizes, and auxiliary machinery equipment subsystem is used for the quantity of registration auxiliary machinery and the power information of single auxiliary engine, and the heat utilization circuit patrols and examines the subsystem and is used for patrolling and examining the trouble of the heat utilization circuit of utilizing to the.
Preferably, the boiler heat detection subsystem comprises a boiler internal pressure detection module, a boiler internal oxygen content detection module and a boiler external heat supply recording module.
Preferably, the radiant heat collecting subsystem comprises a boiler external detection module, a radiant heat reflection module and a radiant heat collecting module.
Preferably, the boiler external detection module comprises an infrared detector, the boiler external is also provided with an enclosure support, and the infrared detector is installed on the upper portion of the enclosure support.
Preferably, the radiant heat reflecting module comprises a reflecting base layer fixed on the enclosure support, and a heat reflecting layer is coated on the reflecting base layer.
Preferably, the reflective base layer is made of a plastic plate material, and the heat reflective layer is coated with a silicon dioxide layered composite material.
Preferably, the radiation heat collecting module comprises a heat collecting plate fixed to the top of the enclosure support, the heat collecting plate is made of heat absorbing cotton materials, and the upper end of the heat collecting plate is connected with the heat utilization subsystem.
Preferably, the heat utilization subsystem is including connecting heat collecting pipe on the radiation heat collecting subsystem, still including connecting the flue gas collecting pipe at boiler afterbody flue, and heat collecting pipe outside sets up water vapor generator, and the boiler end is kept away from to flue gas collecting pipe is fixed with condenser and energy converter, and energy converter keeps away from flue gas collecting pipe end and is connected to auxiliary machinery subsystem, and water vapor generator is inside to set up negative pressure machine, and the inside negative pressure machine that sets up of condenser is the same.
Preferably, the auxiliary device subsystem includes an auxiliary device information registration module and an auxiliary device classification module.
Preferably, the heat utilization circuit inspection subsystem is connected to the heat utilization subsystem, and comprises a flue gas diversion detector connected to the flue gas collection pipeline on the flue gas collection pipeline and an antistatic device fixed inside the water generator.
The invention has the beneficial effects that:
1. this waste heat utilization system of thermal power plant patrols and examines the subsystem through the heat utilization circuit, can be when waste heat utilization, through the inside flue gas water conservancy diversion detector of flue gas collecting pipe, patrol and examine the inside flue gas water conservancy diversion condition of flue gas collecting pipe, effectively prevent the jam of flue, improve waste heat utilization system's utilization ratio.
2. This waste heat utilization system of thermal power plant sets up the radiant heat and collects the subsystem, through setting up the reflection basic unit, and the top coating of reflection basic unit has the heat reflection layer to reflect the heat, further gathers together the heat, improves the collection rate of waste heat.
3. The waste heat utilization system of the thermal power plant is provided with the auxiliary equipment subsystem, the required power consumption amount of all auxiliary equipment is registered, the auxiliary equipment is output with electric quantity according to different auxiliary equipment power consumption amounts, and waste of electric energy converted by waste heat is prevented.
4. This waste heat utilization system of thermal power plant sets up boiler heat detection subsystem, carries out real-time detection to the heat that the boiler inside produced, monitors the heat that produces, and the thermal trend in the whole process of accurate control helps waste heat utilization to provide theoretical basis.
Drawings
Fig. 1 is a schematic structural diagram of a waste heat utilization system of a thermal power plant provided by the invention.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings.
Referring to fig. 1, a waste heat utilization system of a thermal power plant according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.
This waste heat utilization system of thermal power plant includes that boiler heat detects subsystem, radiant heat collection subsystem, heat utilization subsystem, auxiliary equipment subsystem, heat utilization circuit patrol and examine the subsystem, boiler heat detects subsystem is used for the inside hot pressure real-time detection of boiler, and radiant heat collection subsystem is used for retrieving the scattered and lost thermal collection of boiler working process, and the heat utilizes the subsystem to be used for retrieving the scattered and lost heat after collecting and the inside waste heat of boiler afterbody flue and utilize, and auxiliary equipment subsystem is used for the quantity of the registration auxiliary equipment and the power information of single auxiliary engine, and the heat utilization circuit patrol and examine the subsystem and be used for patrolling and examining the trouble of the heat utilization circuit of building to the heat utilization.
Specifically, the boiler heat detection subsystem comprises a boiler internal pressure detection module, a boiler internal oxygen content detection module and a boiler external heat supply recording module.
Specifically, the radiation heat collecting subsystem comprises a boiler external detection module, a radiation heat reflection module and a radiation heat collecting module, wherein the boiler external detection module is used for detecting heat outside the boiler, the radiation heat reflection module is used for collecting heat reflection of external radiation of the boiler, and the radiation heat collecting module is used for collecting the reflected heat.
Specifically, the boiler outside detection module includes infrared detector, and the boiler outside still is equipped with to enclose and keeps off the support, and infrared detector installs in enclosing fender support upper portion, and in the boiler working process, through infrared detector's monitoring, the heat that produces the boiler external radiation detects, provides theoretical support for waste heat utilization.
Specifically, the radiant heat reflection module comprises a reflection base layer fixed on the enclosure support, and a heat reflection layer is coated above the reflection base layer.
Specifically, the reflection basic unit is made of a plastic plate material, the heat reflection layer is coated by a silicon dioxide layered composite material, the heat radiated above the boiler is reflected and collected by the coating of the silicon dioxide layer, and the collection amount of the filtered waste heat is increased through the good photon reflectivity of the silicon dioxide.
Specifically, the radiation heat collection module is including fixing enclose the heat collection board that keeps off support top, and the heat collection board adopts the cotton material preparation of heat absorption, and the heat utilization subsystem is connected to the upper end, and the cotton body of heat absorption stores the heat, through the heat collection pipeline, transmits heat energy to energy converter inside, carries out the conversion of electric energy.
Specifically, the heat utilization subsystem is including connecting heat collecting pipe on the radiant heat collecting subsystem, still including connecting the flue gas collecting pipe at boiler afterbody flue, heat collecting pipe outside sets up water vapor generator, and the boiler end is kept away from to flue gas collecting pipe is fixed with condenser and energy converter, and energy converter keeps away from flue gas collecting pipe end and is connected to auxiliary machinery subsystem, and water vapor generator is inside to set up negative pressure machine, and the inside negative pressure machine that sets up of condenser is the same.
Specifically, the auxiliary device subsystem includes an auxiliary device information registration module and an auxiliary device classification module.
Specifically, the heat utilizes the circuit to patrol and examine the subsystem and be connected to the heat and utilize the subsystem, including connecting the inside flue gas water conservancy diversion detector of flue gas collecting tube on flue gas collecting tube, still including fixing the antistatic plant inside water vapor generator.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a waste heat utilization system of thermal power plant, its characterized in that, this waste heat utilization system of thermal power plant includes boiler heat detection subsystem, radiant heat collection subsystem, heat utilization subsystem, auxiliary machinery equipment subsystem, heat utilization circuit and patrols and examines the subsystem, boiler heat detection subsystem is used for the inside hot pressure real-time detection of boiler, and radiant heat collection subsystem is used for retrieving the collection of the heat that looses in the boiler working process, and the heat utilization subsystem is used for retrieving the heat that looses after collecting and the inside waste heat of boiler afterbody flue utilizes, and auxiliary machinery equipment subsystem is used for the quantity of registration auxiliary machinery and the power information of single auxiliary engine, and the heat utilization circuit patrols and examines the subsystem and is used for patrolling and examining the trouble of the heat utilization circuit of.
2. The waste heat utilization system of the thermal power plant as claimed in claim 1, wherein the boiler heat detection subsystem comprises a boiler internal pressure detection module, a boiler internal oxygen content detection module, and a boiler external heat supply recording module.
3. The waste heat utilization system of a thermal power plant as claimed in claim 1, wherein the radiant heat collection subsystem comprises a boiler external detection module, a radiant heat reflection module, and a radiant heat collection module.
4. The waste heat utilization system of a thermal power plant as claimed in claim 3, wherein the boiler external detection module comprises an infrared detector, an enclosure support is further arranged outside the boiler, and the infrared detector is mounted on the upper portion of the enclosure support.
5. The system as claimed in claim 4, wherein the radiant heat reflecting module comprises a reflecting base layer fixed on the enclosure support, and a heat reflecting layer is coated on the reflecting base layer.
6. The waste heat utilization system of a thermal power plant as claimed in claim 5, wherein the reflective base layer is made of a plastic plate material, and the thermal reflective layer is coated with a silicon dioxide layered composite material.
7. The waste heat utilization system of a thermal power plant as claimed in claim 4, wherein the radiant heat collecting module comprises a heat collecting plate fixed on the top of the enclosure support, the heat collecting plate is made of heat absorbing cotton material, and the upper end of the heat collecting plate is connected with the heat utilization subsystem.
8. The waste heat utilization system of the thermal power plant as claimed in claim 1, wherein the heat utilization subsystem comprises a heat collection pipeline connected to the radiant heat collection subsystem, and further comprises a flue gas collection pipeline connected to a flue at the tail of the boiler, a water vapor generator is arranged outside the heat collection pipeline, a condenser and an energy converter are fixed to the flue gas collection pipeline far away from the boiler end, the energy converter is connected to the auxiliary equipment subsystem far away from the flue gas collection pipeline, a negative pressure machine is arranged inside the water vapor generator, and a negative pressure machine is also arranged inside the condenser.
9. The waste heat utilization system of the thermal power plant as claimed in claim 1, wherein the auxiliary device subsystem comprises an auxiliary device information registration module and an auxiliary device classification module.
10. The waste heat utilization system of the thermal power plant according to claim 1, wherein the heat utilization line inspection subsystem is connected to the heat utilization subsystem, and comprises a flue gas diversion detector connected to the flue gas collection pipe and inside the flue gas collection pipe, and further comprises an antistatic device fixed inside the water generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011390039.0A CN112484065B (en) | 2020-12-02 | 2020-12-02 | Waste heat utilization system of thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011390039.0A CN112484065B (en) | 2020-12-02 | 2020-12-02 | Waste heat utilization system of thermal power plant |
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| Publication Number | Publication Date |
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| CN112484065A true CN112484065A (en) | 2021-03-12 |
| CN112484065B CN112484065B (en) | 2022-10-14 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110203575A1 (en) * | 2009-08-24 | 2011-08-25 | Robert Emery | Thermodynamic/Solar Steam Generator |
| EA201200333A1 (en) * | 2011-07-28 | 2013-01-30 | Республиканское Унитарное Предприятие "Институт Жилища - Ниптис Им. Атаева С.С." | BOILER-UTILIZER OF RADIATION HEAT LOSSES OF BURNING FURNITURE CONSTRUCTION MATERIALS |
| CN202813464U (en) * | 2012-07-19 | 2013-03-20 | 麻益民 | Cooking range provided with reflecting device |
| CN204085208U (en) * | 2014-07-11 | 2015-01-07 | 尹小林 | A kind of cylinder of rotary kiln radiant heat energy that utilizes is for the device of cogeneration |
| JP2016020762A (en) * | 2014-07-14 | 2016-02-04 | ダイキン工業株式会社 | Electric stove |
| CN209945584U (en) * | 2019-06-14 | 2020-01-14 | 张立国 | Rotary kiln barrel radiation waste heat acquisition module and acquisition device applied by same |
-
2020
- 2020-12-02 CN CN202011390039.0A patent/CN112484065B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110203575A1 (en) * | 2009-08-24 | 2011-08-25 | Robert Emery | Thermodynamic/Solar Steam Generator |
| EA201200333A1 (en) * | 2011-07-28 | 2013-01-30 | Республиканское Унитарное Предприятие "Институт Жилища - Ниптис Им. Атаева С.С." | BOILER-UTILIZER OF RADIATION HEAT LOSSES OF BURNING FURNITURE CONSTRUCTION MATERIALS |
| CN202813464U (en) * | 2012-07-19 | 2013-03-20 | 麻益民 | Cooking range provided with reflecting device |
| CN204085208U (en) * | 2014-07-11 | 2015-01-07 | 尹小林 | A kind of cylinder of rotary kiln radiant heat energy that utilizes is for the device of cogeneration |
| JP2016020762A (en) * | 2014-07-14 | 2016-02-04 | ダイキン工業株式会社 | Electric stove |
| CN209945584U (en) * | 2019-06-14 | 2020-01-14 | 张立国 | Rotary kiln barrel radiation waste heat acquisition module and acquisition device applied by same |
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| Publication number | Publication date |
|---|---|
| CN112484065B (en) | 2022-10-14 |
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