CN115382372A - Novel coke oven desulfurization and denitrification power-saving system and method - Google Patents
Novel coke oven desulfurization and denitrification power-saving system and method Download PDFInfo
- Publication number
- CN115382372A CN115382372A CN202211013894.9A CN202211013894A CN115382372A CN 115382372 A CN115382372 A CN 115382372A CN 202211013894 A CN202211013894 A CN 202211013894A CN 115382372 A CN115382372 A CN 115382372A
- Authority
- CN
- China
- Prior art keywords
- booster fan
- flue gas
- fan
- denitrification
- gas pipeline
- 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.)
- Granted
Links
Images
Classifications
-
- 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
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
-
- 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
- B01D53/30—Controlling by gas-analysis apparatus
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention provides a novel desulfurization and denitrification electricity-saving system and a novel desulfurization and denitrification electricity-saving method for a coke oven, wherein the method comprises the following steps: the flue gas flows into first flue gas pipeline and second flue gas pipeline respectively through boiler flue gas outlet, flow into SOx/NOx control mechanism through first booster fan and second booster fan, get into the exhaust-heat boiler behind the SOx/NOx control, wherein, part flue gas flows into in the cooler, flue gas in the exhaust-heat boiler flows into the chimney through the third booster fan, discharge to the atmosphere through the chimney, the data that booster fan detection module detected are gathered to the controller, according to the state of the novel coke oven SOx/NOx control power saving system of detection data regulation and control, the controller gathers system load, according to system load regulation and control first booster fan and second booster fan's state. The novel coke oven desulfurization and denitrification electricity-saving system and the novel coke oven desulfurization and denitrification electricity-saving method can be used for carrying out safety detection on the booster fan, preventing economic loss or accidents caused by damage of the booster fan, reducing the electric quantity consumption of the booster fan and reducing the production cost.
Description
Technical Field
The invention relates to the technical field of coal chemical industry, in particular to a novel desulfurization and denitrification electricity-saving system and method for a coke oven.
Background
The method is characterized in that a booster fan is often needed to be used for desulfurization and denitrification of the coke oven flue gas, when the booster fan fails, detection cannot be timely carried out, a thermal power generating set can be shut down and cannot operate, normal production is affected, huge economic loss is caused, and even the safe operation of a thermal power enterprise is endangered; in addition, after desulfurization and denitrification are finished, when qualified flue gas emission is needed, a booster fan needs to be used for discharging the flue gas in the waste heat boiler, the internal resistance of the traditional waste heat boiler is large, and the electric quantity consumption of the booster fan is large, so that the waste is very large. Therefore, it is necessary to design a novel desulfurization and denitrification power-saving system and method for a coke oven.
Disclosure of Invention
The invention aims to provide a novel coke oven desulfurization and denitrification electricity-saving system and a novel coke oven desulfurization and denitrification electricity-saving method, which can be used for carrying out safety detection on a booster fan, preventing economic loss or accidents caused by damage of the booster fan, reducing the electric quantity consumption of the booster fan and reducing the production cost.
In order to achieve the purpose, the invention provides the following scheme:
a novel coke oven desulfurization and denitrification electricity-saving system comprises: first flue gas pipeline, second flue gas pipeline, third flue gas pipeline, SOx/NOx control mechanism, exhaust-heat boiler, cooler, third booster fan, chimney, booster fan detection module and controller, first flue gas pipeline, second flue gas pipeline and third flue gas pipeline are parallelly connected, and boiler flue gas exit linkage the flue gas entry of first flue gas pipeline, second flue gas pipeline and third flue gas pipeline, the exhanst gas exit linkage of first flue gas pipeline, second flue gas pipeline and third flue gas pipeline SOx/NOx control mechanism, SOx/NOx control mechanism connects exhaust-heat boiler's flue gas entry, exhaust-heat boiler connects in parallel the cooler, exhaust-heat boiler's exhanst gas exit linkage third booster fan, the chimney is connected to the third booster fan, be provided with first booster fan and second booster fan on first flue gas pipeline and the second flue gas pipeline respectively, first booster fan and second booster fan front end first flue gas pipe and second intelligent flue gas pipe set up first electric valve and second electric valve respectively, third intelligent booster fan and intelligent electric valve on the third flue gas pipeline, be provided with third intelligent valve on the intelligent booster fan, third booster fan and second flue gas pipeline all set up first electric valve and intelligent booster fan detection module, third booster fan detection module, second booster fan, electric control module and third booster fan.
Optionally, booster fan detection module includes first temperature sensor, second temperature sensor, third temperature sensor and fan protection device, first temperature sensor sets up on booster fan's roller bearing for gather roller bearing's temperature, second temperature sensor sets up on booster fan's motor bearing for gather motor bearing's temperature, third temperature sensor sets up on booster fan's support bearing for gather the temperature of support bearing, fan protection device sets up on booster fan for detect booster fan and whether break down, and produce fault signal and send to the controller when booster fan breaks down, first temperature sensor, second temperature sensor, third temperature sensor and fan protection device electric connection the controller.
Optionally, the first intelligent electric valve, the second intelligent electric valve and the third intelligent electric valve are all provided with a manual switch for realizing manual opening and closing.
The invention also provides a novel coke oven desulfurization and denitrification electricity-saving method, which is applied to the novel coke oven desulfurization and denitrification electricity-saving system and comprises the following steps:
step 1: the method comprises the following steps that smoke flows into a first smoke pipeline and a second smoke pipeline through a smoke outlet of a boiler respectively, flows into a desulfurization and denitrification mechanism through a first booster fan and a second booster fan, and flows into a waste heat boiler after desulfurization and denitration, wherein part of the smoke flows into a cooler and is used for reducing the pressure inside the waste heat boiler, and the smoke in the waste heat boiler flows into a chimney through a third booster fan and is discharged into the atmosphere through the chimney;
and 2, step: the controller collects data detected by the booster fan detection module and regulates and controls the state of the novel coke oven desulfurization and denitrification electricity-saving system according to the detected data;
and step 3: the controller collects system loads and regulates and controls the states of the first booster fan and the second booster fan according to the system loads.
Optionally, in step 2, the controller collects data detected by the booster fan detection module, and regulates and controls the state of the novel coke oven desulfurization and denitrification power saving system according to the detection data, specifically comprising:
the method comprises the following steps that a booster fan detection module detects the roller bearing temperature, the motor bearing temperature, the support bearing temperature and the fault state of a first booster fan, a second booster fan and a third booster fan in real time and sends the roller bearing temperature, the motor bearing temperature, the support bearing temperature and the fault state to a controller, the controller judges the states of the first booster fan and the second booster fan according to the roller bearing temperature, the motor bearing temperature, the support bearing temperature and the fault state of the first booster fan and the second booster fan, wherein if one or more of the roller bearing temperature, the motor bearing temperature and the support bearing temperature of the first booster fan exceeds a preset threshold value or a fan protection device of the first booster fan generates a fault signal, the fault of the first booster fan is judged, the controller controls the first booster fan to be closed and controls a first intelligent door to be closed, if one or more of the bearing temperature, the motor bearing temperature and the support bearing temperature of the second booster fan exceeds a preset threshold value or a fan protection device of the second booster fan generates a fault signal, the fault of the second booster fan is judged, the controller controls the second booster fan to be closed and controls a second intelligent electric valve to be opened and a second booster fan to be closed, if any one of the second booster fan is closed, and a flue gas flows, and the third booster fan is controlled;
if one or more of the roller bearing temperature, the motor bearing temperature and the support bearing temperature of the third booster fan exceeds a preset threshold value, or a fan protection device of the third booster fan generates a fault signal, the second booster fan is judged to be in fault, and the controller controls the whole novel coke oven desulfurization and denitrification electricity-saving system to be closed.
Optionally, in step 3, the controller collects a system load, and regulates and controls states of the first booster fan and the second booster fan according to the system load, specifically:
the controller acquires the system load of the novel coke oven desulfurization and denitrification electricity-saving system, and controls the first booster fan, the first intelligent electric valve, the second booster fan and the second intelligent electric valve to be opened and the third intelligent electric valve to be closed if the system load is higher than a first preset threshold value;
if the system load is lower than or equal to a first preset threshold value, the controller controls the first booster fan and the first intelligent electric valve or the second booster fan and the second intelligent electric valve to be opened, and controls the third intelligent electric valve to be closed;
and if the system load is lower than or equal to a second preset threshold value, the controller controls the first booster fan, the first intelligent electric valve, the second booster fan and the second intelligent electric valve to be closed, and controls the third intelligent electric valve to be opened, wherein the first preset threshold value is larger than the second preset threshold value.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects: the invention provides a novel coke oven desulfurization and denitrification electricity-saving system and a novel coke oven desulfurization and denitrification electricity-saving method, wherein the system comprises a first flue gas pipeline, a second flue gas pipeline, a third flue gas pipeline, a desulfurization and denitrification mechanism, a waste heat boiler, a cooler, a third booster fan, a chimney, a booster fan detection module and a controller, wherein the first flue gas pipeline, the second flue gas pipeline and the third flue gas pipeline are arranged, the first flue gas pipeline and the second flue gas pipeline are respectively provided with the first booster fan and the second booster fan to realize the flow of flue gas, the third flue gas pipeline is also arranged, the low-speed flow of the flue gas can be realized through the third flue gas pipeline when the first booster fan and the second booster fan fail, the production stop caused by the damage of the booster fan can be prevented, the system is provided with the cooler to reduce the pressure in the waste heat boiler, and the system is provided with the booster fan detection module to detect the booster fan and ensure the operation of the system; the method comprises the steps that flue gas flows into a first flue gas pipeline and a second flue gas pipeline through a boiler flue gas outlet respectively, flows into a desulfurization and denitrification mechanism through a first booster fan and a second booster fan, and flows into the waste heat boiler after desulfurization and denitrification, wherein part of the flue gas flows into a cooler and is used for reducing the pressure inside the waste heat boiler, the flue gas in the waste heat boiler flows into a chimney through a third booster fan and is discharged into the atmosphere through the chimney, a controller collects data detected by a booster fan detection module, the state of a novel coke oven desulfurization and denitrification electricity-saving system is regulated and controlled according to the detected data, the controller collects system load, the states of the first booster fan and the second booster fan are regulated and controlled according to the system load, and normal operation of production is guaranteed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments 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 inventive exercise.
FIG. 1 is a schematic structural diagram of a novel coke oven desulfurization and denitrification power-saving system in an embodiment of the invention;
FIG. 2 is a schematic flow chart of the novel desulfurization and denitrification power-saving method for the coke oven in the embodiment of the invention.
Reference numerals are as follows: 1. a first flue gas pipeline; 2. a second flue gas conduit; 3. a third flue gas pipeline; 4. a desulfurization and denitrification mechanism; 5. a waste heat boiler; 6. a cooler; 7. a third booster fan; 8. and (4) a chimney.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a novel coke oven desulfurization and denitrification electricity-saving system and a novel coke oven desulfurization and denitrification electricity-saving method, which can be used for carrying out safety detection on a booster fan, preventing economic loss or accidents caused by damage of the booster fan, reducing the electric quantity consumption of the booster fan and reducing the production cost.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1, the novel coke oven desulfurization and denitrification electricity-saving system provided by the embodiment of the invention comprises: first flue gas pipeline 1, second flue gas pipeline 2, third flue gas pipeline 3, SOx/NOx control mechanism 4, exhaust-heat boiler 5, cooler 6, third booster fan 7, chimney 8, booster fan detection module and controller, first flue gas pipeline 1, second flue gas pipeline 2 and third flue gas pipeline 3 are parallelly connected, and the boiler flue gas exit linkage first flue gas pipeline 1, second flue gas pipeline 2 and third flue gas pipeline 3's flue gas entry, first flue gas pipeline 1, second flue gas pipeline 2 and third flue gas pipeline 3's exhanst gas outlet linkage SOx/NOx control mechanism 4, SOx/NOx control mechanism 4 connects the flue gas entry of exhaust-heat boiler 5, exhaust-heat boiler 5 is parallelly connected cooler 6, exhaust-heat boiler 5's exhanst gas outlet linkage third booster fan 7, third booster fan 7 connects chimney 8, be provided with first booster fan and second booster fan on first flue gas pipeline 1 and the second flue gas pipeline 2 respectively, first booster fan and the second booster fan on first flue gas pipeline 1 and the second flue gas pipeline 2 set up intelligent valve and intelligent valve 2 of intelligent valve of second booster fan detection valve 3, third booster fan detection intelligent valve 7 and intelligent valve on the intelligent valve of third booster fan detection valve 3, intelligent booster fan detection valve 3, electric motor fan detection valve and the intelligent valve of third booster fan detection module and third booster fan detection valve 3.
Booster fan detection module includes first temperature sensor, second temperature sensor, third temperature sensor and fan protection device, first temperature sensor sets up on booster fan's roller bearing for gather roller bearing's temperature, second temperature sensor sets up on booster fan's motor bearing for gather motor bearing's temperature, third temperature sensor sets up on booster fan's support bearing for gather the temperature of support bearing, fan protection device sets up on booster fan for whether detect booster fan breaks down, and produce fault signal and send to the controller when booster fan breaks down, first temperature sensor, second temperature sensor, third temperature sensor and fan protection device electric connection the controller.
First intelligent electric valve, second intelligence electric valve and third intelligence electric valve all are provided with manual switch for realize manual opening and close, first intelligence electric valve, second intelligence electric valve and third intelligence electric valve all adopt prior art in conventional electric valve can, this valve should still set up manual switch, be used for realizing manually opening and close.
The device should still set up wireless communication module, for example WIFI module etc. and the controller passes through wireless communication module communication connection host computer, can control the controller through the host computer.
As shown in FIG. 2, the invention also provides a novel electricity-saving desulfurization and denitrification method for a coke oven, which is applied to the novel electricity-saving desulfurization and denitrification system for the coke oven and comprises the following steps:
step 1: the method comprises the following steps that flue gas flows into a first flue gas pipeline and a second flue gas pipeline through a boiler flue gas outlet respectively, flows into a desulfurization and denitrification mechanism through a first booster fan and a second booster fan, and flows into a waste heat boiler after desulfurization and denitrification, wherein part of the flue gas flows into a cooler and is used for reducing the pressure inside the waste heat boiler, and the flue gas in the waste heat boiler flows into a chimney through a third booster fan and is discharged into the atmosphere through the chimney;
step 2: the controller collects data detected by the booster fan detection module and regulates and controls the state of the novel coke oven desulfurization and denitrification electricity-saving system according to the detected data;
and step 3: the controller collects system loads and regulates and controls the states of the first booster fan and the second booster fan according to the system loads.
In step 2, the controller collects data detected by the booster fan detection module, and regulates and controls the state of the novel coke oven desulfurization and denitrification electricity-saving system according to the detection data, specifically comprising the following steps:
the method comprises the following steps that a booster fan detection module detects the roller bearing temperature, the motor bearing temperature, the support bearing temperature and the fault state of a first booster fan, a second booster fan and a third booster fan in real time and sends the roller bearing temperature, the motor bearing temperature, the support bearing temperature and the fault state to a controller, the controller judges the states of the first booster fan and the second booster fan according to the roller bearing temperature, the motor bearing temperature, the support bearing temperature and the fault state of the first booster fan and the second booster fan, wherein if one or more of the roller bearing temperature, the motor bearing temperature and the support bearing temperature of the first booster fan exceeds a preset threshold value or a fan protection device of the first booster fan generates a fault signal, the fault of the first booster fan is judged, the controller controls the first booster fan to be closed and controls a first intelligent door to be closed, if one or more of the bearing temperature, the motor bearing temperature and the support bearing temperature of the second booster fan exceeds a preset threshold value or a fan protection device of the second booster fan generates a fault signal, the fault of the second booster fan is judged, the controller controls the second booster fan to be closed and controls a second intelligent electric valve to be opened and a second booster fan to be closed, if any one of the second booster fan is closed, and a flue gas flows, and the third booster fan is controlled;
if one or more of the temperature of a roller bearing, the temperature of a motor bearing and the temperature of a support bearing of the third booster fan exceeds a preset threshold value or a fan protection device of the third booster fan generates a fault signal, the fault of the second booster fan is judged, and the controller controls the whole novel coke oven desulfurization and denitrification electricity-saving system to be closed.
In step 3, the controller collects the system load, and regulates and controls the states of the first booster fan and the second booster fan according to the system load, specifically comprising:
the controller collects the system load of the novel coke oven desulfurization and denitrification electricity-saving system, and controls the first booster fan, the first intelligent electric valve, the second booster fan and the second intelligent electric valve to be opened and the third intelligent electric valve to be closed if the system load is higher than a first preset threshold value;
if the system load is lower than or equal to a first preset threshold value, the controller controls the first booster fan and the first intelligent electric valve or the second booster fan and the second intelligent electric valve to be opened, and controls the third intelligent electric valve to be closed; and if the system load is lower than or equal to a second preset threshold value, the controller controls the first booster fan, the first intelligent electric valve, the second booster fan and the second intelligent electric valve to be closed, and controls the third intelligent electric valve to be opened, wherein the first preset threshold value is larger than the second preset threshold value.
One embodiment of the invention is: before the cooler is added, the resistance of the waste heat boiler is measured to be about 2100-2200 pa; the hertz of the desulfurization and denitrification booster fan fluctuates between 42.5 and 44, the power consumption is about 24000 to 25000KWh, and the power consumption of the hot standby fan is 0KWh;
after the cooler is added, the resistance of the waste heat boiler is measured to be about 700-800pa, in addition, the cooler can adopt a waste cooler or a waste hot standby fan, the purchase cost can be reduced, the desulfurization and denitrification booster fan stably operates at about 37HZ, the hot standby fan stably operates at about 43HZ, the power consumption of the hot standby fan is increased by about 1500-1600kWh every day, the electric quantity of the booster fan is about 17000-18000, and the power consumption is saved by about 5500kWh every day.
The invention provides a novel coke oven desulfurization and denitrification electricity-saving system and a novel coke oven desulfurization and denitrification electricity-saving method, wherein the system comprises a first flue gas pipeline, a second flue gas pipeline, a third flue gas pipeline, a desulfurization and denitrification mechanism, a waste heat boiler, a cooler, a third booster fan, a chimney, a booster fan detection module and a controller, wherein the first flue gas pipeline, the second flue gas pipeline and the third flue gas pipeline are arranged, the first flue gas pipeline and the second flue gas pipeline are respectively provided with the first booster fan and the second booster fan to realize the flow of flue gas, the third flue gas pipeline is also arranged, the low-speed flow of the flue gas can be realized through the third flue gas pipeline when the first booster fan and the second booster fan fail, the production stop caused by the damage of the booster fan can be prevented, the system is provided with the cooler to reduce the pressure in the waste heat boiler, and the system is provided with the booster fan detection module to detect the booster fan and ensure the operation of the system; the method comprises the steps that flue gas flows into a first flue gas pipeline and a second flue gas pipeline through a boiler flue gas outlet respectively, flows into a desulfurization and denitration mechanism through a first booster fan and a second booster fan, and flows into the waste heat boiler after desulfurization and denitration, wherein part of the flue gas flows into a cooler and is used for reducing the pressure inside the waste heat boiler, the flue gas in the waste heat boiler flows into a chimney through a third booster fan and is discharged into the atmosphere through the chimney, a controller collects data detected by a booster fan detection module, the state of a novel coke oven desulfurization and denitration electricity-saving system is regulated and controlled according to the detected data, the controller collects system load, the states of the first booster fan and the second booster fan are regulated and controlled according to the system load, and normal operation of production is guaranteed.
The principle and the embodiment of the present invention are explained by applying specific examples, and the above description of the embodiments is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (6)
1. A novel coke oven desulfurization and denitrification electricity-saving system is characterized by comprising: first flue gas pipeline, second flue gas pipeline, third flue gas pipeline, SOx/NOx control mechanism, exhaust-heat boiler, cooler, third booster fan, chimney, booster fan detection module and controller, first flue gas pipeline, second flue gas pipeline and third flue gas pipeline are parallelly connected, and boiler flue gas exit linkage the flue gas entry of first flue gas pipeline, second flue gas pipeline and third flue gas pipeline, the flue gas exit linkage of first flue gas pipeline, second flue gas pipeline and third flue gas pipeline SOx/NOx control mechanism, SOx/NOx control mechanism connects exhaust-heat boiler's flue gas entry, exhaust-heat boiler is parallelly connected the cooler, exhaust-heat boiler's flue gas exit linkage third booster fan, the chimney is connected to the third booster fan, be provided with first booster fan and second booster fan on first flue gas pipeline and the second flue gas pipeline respectively, set up first intelligent electric valve and second electric valve respectively on first flue gas pipeline and the second booster fan front end and all set up first intelligent electric valve and second electric valve on the first flue gas pipeline and the second booster fan, second booster fan detection module, third booster fan detection module and controller.
2. The novel coke oven desulfurization, denitrification and power saving system as claimed in claim 1, wherein the booster fan detection module comprises a first temperature sensor, a second temperature sensor, a third temperature sensor and a fan protection device, the first temperature sensor is arranged on a roller bearing of the booster fan and used for collecting the temperature of the roller bearing, the second temperature sensor is arranged on a motor bearing of the booster fan and used for collecting the temperature of the motor bearing, the third temperature sensor is arranged on a support bearing of the booster fan and used for collecting the temperature of the support bearing, the fan protection device is arranged on the booster fan and used for detecting whether the booster fan fails and generating a fault signal to be sent to the controller when the booster fan fails, and the first temperature sensor, the second temperature sensor, the third temperature sensor and the fan protection device are electrically connected with the controller.
3. The novel desulfurization and denitrification power-saving system for the coke oven as claimed in claim 1, wherein the first intelligent electric valve, the second intelligent electric valve and the third intelligent electric valve are all provided with manual switches for realizing manual opening and closing.
4. A novel desulfurization and denitrification electricity-saving method for a coke oven is applied to the novel desulfurization and denitrification electricity-saving system for the coke oven as claimed in any one of claims 1 to 3, and is characterized by comprising the following steps:
step 1: the method comprises the following steps that flue gas flows into a first flue gas pipeline and a second flue gas pipeline through a boiler flue gas outlet respectively, flows into a desulfurization and denitrification mechanism through a first booster fan and a second booster fan, and flows into a waste heat boiler after desulfurization and denitrification, wherein part of the flue gas flows into a cooler and is used for reducing the pressure inside the waste heat boiler, and the flue gas in the waste heat boiler flows into a chimney through a third booster fan and is discharged into the atmosphere through the chimney;
step 2: the controller collects data detected by the booster fan detection module and regulates and controls the state of the novel coke oven desulfurization and denitrification power-saving system according to the detection data;
and step 3: the controller collects system loads and regulates and controls the states of the first booster fan and the second booster fan according to the system loads.
5. The novel desulfurization, denitrification and power saving method for the coke oven according to claim 4, wherein in the step 2, the controller collects data detected by the booster fan detection module, and regulates and controls the state of the novel desulfurization, denitrification and power saving system for the coke oven according to the detected data, specifically comprising the following steps:
the method comprises the following steps that a booster fan detection module detects the roller bearing temperature, the motor bearing temperature, the support bearing temperature and the fault state of a first booster fan, a second booster fan and a third booster fan in real time and sends the roller bearing temperature, the motor bearing temperature, the support bearing temperature and the fault state of the first booster fan, the second booster fan and the third booster fan to a controller, the controller judges the states of the first booster fan and the second booster fan according to the roller bearing temperature, the motor bearing temperature, the support bearing temperature and the fault state of the first booster fan and the second booster fan, wherein if one or more of the roller bearing temperature, the motor bearing temperature and the support bearing temperature of the first booster fan exceeds a preset threshold value or a fan protection device of the first booster fan generates a fault signal, the first booster fan is judged to be in fault, the controller controls the first booster fan to be closed and controls a first intelligent door to be closed, if one or more of the roller bearing temperature, the motor bearing temperature and the support bearing temperature of the second booster fan exceeds the preset threshold value or a fan protection device of the second booster fan generates a fault signal, the second booster fan is judged to be in fault, the controller controls a second booster fan to be closed and controls a second intelligent booster fan to be opened and a second booster fan to be closed, if any one of the second booster fan and a second booster fan is closed, and a second booster fan is controlled by an electric valve, and a second booster fan, and a flue gas flow control electric valve is kept to be closed, and a second booster fan is controlled by the second booster fan, and a flue gas flow of the second booster fan, and a third booster fan is controlled by the booster fan, and a second booster fan, and a third booster fan is controlled by the booster fan, and a flue gas flow of the booster fan is controlled by the booster fan, and a third booster fan is controlled by the booster fan;
if one or more of the roller bearing temperature, the motor bearing temperature and the support bearing temperature of the third booster fan exceeds a preset threshold value, or a fan protection device of the third booster fan generates a fault signal, the second booster fan is judged to be in fault, and the controller controls the whole novel coke oven desulfurization and denitrification electricity-saving system to be closed.
6. The novel desulfurization, denitrification and electricity-saving method for the coke oven according to claim 4, wherein in the step 3, the controller collects system loads and regulates and controls the states of the first booster fan and the second booster fan according to the system loads, and the method specifically comprises the following steps:
the controller acquires the system load of the novel coke oven desulfurization and denitrification electricity-saving system, and controls the first booster fan, the first intelligent electric valve, the second booster fan and the second intelligent electric valve to be opened and the third intelligent electric valve to be closed if the system load is higher than a first preset threshold value;
if the system load is lower than or equal to a first preset threshold value, the controller controls the first booster fan and the first intelligent electric valve or the second booster fan and the second intelligent electric valve to be opened, and controls the third intelligent electric valve to be closed;
and if the system load is lower than or equal to a second preset threshold value, the controller controls the first booster fan, the first intelligent electric valve, the second booster fan and the second intelligent electric valve to be closed, and controls the third intelligent electric valve to be opened, wherein the first preset threshold value is larger than the second preset threshold value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211013894.9A CN115382372B (en) | 2022-08-23 | 2022-08-23 | Novel power saving system and method for desulfurization and denitrification of coke oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211013894.9A CN115382372B (en) | 2022-08-23 | 2022-08-23 | Novel power saving system and method for desulfurization and denitrification of coke oven |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115382372A true CN115382372A (en) | 2022-11-25 |
| CN115382372B CN115382372B (en) | 2023-07-18 |
Family
ID=84120599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211013894.9A Active CN115382372B (en) | 2022-08-23 | 2022-08-23 | Novel power saving system and method for desulfurization and denitrification of coke oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115382372B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008052465A1 (en) * | 2006-10-25 | 2008-05-08 | Baoshan Iron & Steel Co., Ltd. | A sintered flue gas wet desulfurizing and dedusting process |
| CN101709879A (en) * | 2009-09-27 | 2010-05-19 | 西安交通大学 | System for deep cooling and waste heat recovery of smoke gas in boiler |
| CN102087021A (en) * | 2010-12-20 | 2011-06-08 | 华北电力大学 | Integrated system for utilizing residual heat of boiler smoke and removing sulfur |
| CN205495310U (en) * | 2016-03-11 | 2016-08-24 | 西安华江环保科技股份有限公司 | Coke oven flue desulphurization of exhaust gas deNOx systems |
-
2022
- 2022-08-23 CN CN202211013894.9A patent/CN115382372B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008052465A1 (en) * | 2006-10-25 | 2008-05-08 | Baoshan Iron & Steel Co., Ltd. | A sintered flue gas wet desulfurizing and dedusting process |
| CN101709879A (en) * | 2009-09-27 | 2010-05-19 | 西安交通大学 | System for deep cooling and waste heat recovery of smoke gas in boiler |
| CN102087021A (en) * | 2010-12-20 | 2011-06-08 | 华北电力大学 | Integrated system for utilizing residual heat of boiler smoke and removing sulfur |
| CN205495310U (en) * | 2016-03-11 | 2016-08-24 | 西安华江环保科技股份有限公司 | Coke oven flue desulphurization of exhaust gas deNOx systems |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115382372B (en) | 2023-07-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201017222Y (en) | Car tunnel electromechanics monitoring intelligent region controller | |
| CN102652891A (en) | Energy-saving automatic control device of cloth-bag dust removal system and control method for blast furnace dust removal | |
| CN111338409A (en) | Universal desulfurization dust removal energy-saving optimization control system | |
| CN115382372A (en) | Novel coke oven desulfurization and denitrification power-saving system and method | |
| CN203443375U (en) | Flue gas waste heat recovery system of steel rolling production line | |
| CN112696667A (en) | Bed temperature early warning system of circulating fluidized bed boiler unit | |
| CN203615353U (en) | Desulphurization system of coal power generating unit | |
| CN201779676U (en) | Seal air system of desulfurized flue gas damper | |
| CN107561222B (en) | Flue gas analysis device | |
| CN207257419U (en) | A kind of super-low standby power consumption charging pile | |
| CN216769474U (en) | Air heater system with variable heat source | |
| CN112841698B (en) | Tobacco leaf bulk curing barn capable of switching natural gas and coal heating modes | |
| CN212548952U (en) | Sintering machine head flue gas desulfurization and denitrification treatment device | |
| CN214198729U (en) | Large-scale power plant boiler draught fan air volume adjusting device | |
| CN213446806U (en) | SCR low-temperature denitration heating energy-saving device for glass kiln flue gas | |
| CN211902830U (en) | Adjustable working medium flow type coal economizer | |
| CN103234340A (en) | Control method and device of tobacco pneumatic drying air-heating furnace | |
| CN204790490U (en) | Central heating desulfurization dust removal automatic control system | |
| CN201014920Y (en) | Rotary kiln negative pressure safety interlocking control system | |
| CN203702293U (en) | Purifying device for diesel exhaust particles | |
| CN112228893A (en) | Air volume adjusting device and method for draught fan of large power station boiler | |
| CN2859247Y (en) | Smoke gas resistance downwash device for wet chimney of flue gas desulfurizer | |
| CN111871169A (en) | Control method for solving problem of inverted suspension of Nox signal of coal-fired boiler in thermal power plant | |
| CN104567439B (en) | Complete heat-accumulating-type fume waste heat recycling method based on IOT (Internet Of Things) online control and complete heat-accumulating-type fume waste heat recycling device based on IOT online control | |
| CN215929600U (en) | A adjusting device that is used for pulverized coal fired boiler's SCR denitrification facility entry gas temperature |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |