CN214406000U - Health monitoring equipment for wind and smoke system - Google Patents
Health monitoring equipment for wind and smoke system Download PDFInfo
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- CN214406000U CN214406000U CN202023306889.6U CN202023306889U CN214406000U CN 214406000 U CN214406000 U CN 214406000U CN 202023306889 U CN202023306889 U CN 202023306889U CN 214406000 U CN214406000 U CN 214406000U
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Abstract
The utility model discloses a wind cigarette system health monitoring equipment, include: a network switch; the system comprises an automatic control device arranged on a blower, monitoring devices arranged on bearings of the blower and a draught fan, air quantity monitoring and adjusting devices arranged on a heater and an air preheater, temperature monitoring and controlling devices arranged on a superheater and a reheater, and a reheater protecting device arranged on the reheater; the system comprises a temperature monitoring and alarming device arranged on the economizer, a concentration monitoring and alarming device arranged on a flue gas dust removal device, and a monitoring and controlling device arranged on a flue gas adjusting baffle. The utility model discloses running state, the operational environment of each equipment in can being to the wind cigarette system monitor to under emergency, send alarm information, make that the staff can be timely make judgement and control to corresponding condition.
Description
Technical Field
The utility model relates to a thermal power plant intelligent control technical field, in particular to thermal power plant's wind cigarette system health monitoring equipment.
Background
The operation of each system, equipment and the like of the traditional thermal power plant mainly depends on people to monitor the state and parameters of the system or the equipment, and operating personnel need to patrol and monitor constantly changing data twenty-four hours a day, but the manual monitoring disc is difficult to find the slow change of the parameters in the early stage of the equipment failure, the slow change is mostly processed after the alarm occurs, and only excellent operating personnel can find the abnormality of the equipment in thousands of data, so that the equipment can be correctly disposed in the early stage of the failure. In addition, in the mode, operators need to concentrate on continuously staring at the change of each important parameter before the operation is finished, and the working pressure is high and the labor intensity is high.
Among them, the coal-fired boiler air-smoke system of the thermal power plant is one of the most important systems in the whole power generation process. The boiler air-smoke system is a balanced ventilation system, namely, a primary fan, a blower and an induced draft fan are used for overcoming various resistances in the air flow circulation process. The blower sends cold air to the air preheater for heating, one part of the heated gas enters the hearth through the coal mill and the powder discharge fan, and the other part of the heated gas directly enters the hearth through the sleeve on the outer side of the burner. The high-temperature flue gas formed by combustion in the hearth is gradually cooled along the flue through a reheater, an economizer and an air preheater, 90-99 percent (99 percent of dust can be removed by an electric dust remover) of the high-temperature flue gas is removed by a dust remover, and the high-temperature flue gas is sent into a chimney through a draught fan and discharged to the sky. The balanced ventilation system not only ensures that the air leakage of the hearth and the tail flue is not too large, ensures higher economy, but also can prevent high-temperature flue gas in the boiler from overflowing, and is beneficial to the safety of operators and the sanitary condition of a boiler room island. Therefore, normal operation, fault early warning and the like of each device in the air and smoke system directly influence the whole power generation process and the safe and economic operation of the thermal power plant.
Because whole wind cigarette system long-term work is and be in the continuous operation state, and the operational environment is complicated, the condition is abominable, how to know its health status in real time, various operating modes such as its normal operating, maintenance and trouble, emergency to timely automatic control is made to the condition of responding, the problem that awaits the solution urgently.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the utility model provides a wind cigarette system health monitoring equipment is provided to solve among the prior art to the unable real-time supervision of each equipment health condition of whole wind cigarette system and make the problem of reply control immediately.
In order to solve the above problem, an embodiment of the present invention provides a health monitoring device for a wind and smoke system, the wind and smoke system at least comprises the following: the system comprises an air preheater, a blower, a draught fan, a flue gas adjusting baffle, a superheater, a reheater, an economizer and a flue gas dust removal device; the health monitoring device comprises: a network switch; and
the automatic control device is arranged on the blower and is connected with the network switch through line or wireless communication, the automatic control device further comprises an on/off module, a blower selection module, an air volume monitoring module and a control module, the blower selection module is connected with the on/off module, and the air volume monitoring module is respectively connected with the blower selection module and the control module; the automatic control device is used for respectively controlling the selection and the opening and closing of the two air blowers, specifically, a single air blower can be selected to work or the two air blowers can work simultaneously according to the requirement, and the output balance of the two air blowers can be adjusted when the two air blowers work simultaneously;
the monitoring devices arranged on the blower and the induced draft fan bearing are connected with the network switch through lines or wireless communication, collect the running condition of the fan bearing in real time and start alarm when reaching a set threshold;
the air quantity monitoring and adjusting device is arranged on the air heater and the air preheater and is connected with the network switch through a line or wireless communication, the air quantity monitoring and adjusting device further comprises an air speed monitoring module, a temperature monitoring module and an air quantity control module, and the air speed monitoring module and the temperature monitoring module are respectively connected with the air quantity control module; the air quantity monitoring and adjusting die is used for controlling the air quantity of cold air and hot air, so that the total air quantity entering the coal mill reaches the control requirement, and the outlet temperature meets the set range;
the temperature monitoring and controlling device is arranged on the superheater and the reheater and is connected with the network switch through line or wireless communication, the temperature monitoring and controlling device comprises a wall temperature measuring point module, a pressure monitoring module and an early warning module, the pressure monitoring module and the early warning module are arranged on main welding points of the superheater and the reheater, the wall temperature measuring point module and the pressure monitoring module are connected with the early warning module, and when the wall temperature or the main welding point pressure exceeds a set threshold range, the early warning module is started and the network switch is informed;
the reheater protection device is arranged on the reheater, and if the boiler fuel quantity exceeds the total boiler fuel quantity by 10-12% before the steam turbine is flushed, the delay time is 7-9 seconds, the boiler MFT is operated (main fuel trip), and the boiler fuel quantity is cut off;
the temperature monitoring and alarming device is arranged on the economizer and is connected with the network switch through line or wireless communication; the temperature monitoring and alarming device comprises a sensor module, a data acquisition module, a digital-to-analog conversion module, a control module and an alarming module; the sensor module is arranged on the economizer body and used for collecting the temperature of the wall pipe of the economizer and is connected with the data collection module through a line; the data acquisition module is connected with the digital-to-analog conversion module and is used for performing digital-to-analog conversion on the acquired data; the digital-to-analog conversion module is connected with the control module, the control module is connected with the alarm module, and the control module sends the temperature to the network switch through the alarm module when the temperature of the economizer wall pipe reaches a temperature threshold corresponding to the critical wall thickness;
the concentration monitoring and warning device is arranged on the flue gas dust removal device and is connected with the network switch through line or wireless communication; the concentration monitoring and warning device comprises a smoke temperature sensor, a smoke flow sensor, a pressure sensor, a data conversion and processing module and a warning module; the smoke temperature sensor, the smoke flow sensor and the pressure sensor are respectively connected with the data conversion and processing module, and the collected values of smoke temperature, smoke flow, pressure and the like are sent to the data conversion and processing module for judging whether the values are within a set threshold value; the data conversion and processing module is connected with the alarm module, and the alarm module is started and sent to the network switch when the numerical value exceeds a set threshold value;
the smoke monitoring and controlling device is arranged on the smoke adjusting baffle and is connected with the network switch through a line or wireless communication; the flue gas monitoring and controlling device comprises a flue gas flow sensor, a data conversion and processing module, a baffle control module and an alarm module; the flue gas flow sensor is connected with the data conversion and processing module baffle control module and used for sending collected flue gas flow data to the data conversion and processing module and sending the data to the network switch after conversion and processing, and the baffle control module receives an instruction sent back by the network switch to realize the control of the opening and closing of the baffle and the opening of the baffle; the alarm module is connected with the data conversion and processing module, starts alarm when the data sent by the data conversion and processing module reaches a set threshold value, and sends alarm information to the network switch.
The utility model discloses a health monitoring equipment of wind cigarette system, its advantage and efficiency lie in: the utility model discloses running state, the operational environment of each equipment in can being to the wind cigarette system monitor to under emergency, send alarm information, make that the staff can be timely make judgement and control to corresponding condition.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly introduced below, it should be understood that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a block diagram of the health monitoring device of the utility model.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following will explain in detail each embodiment of the present invention with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in various embodiments of the invention, numerous technical details are set forth in order to provide a better understanding of the invention. However, the technical solution claimed in the present invention can be realized without these technical details and various changes and modifications based on the following embodiments.
The embodiment of the utility model provides a to the used wind smoke system health monitoring equipment of various model coal fired boiler in power plant. The wind smoke system at least comprises the following devices: the system comprises an air preheater, a blower, a draught fan, a flue gas adjusting baffle, a superheater, a reheater, an economizer and a flue gas dust removal device; the system comprises an air preheater, a blower and an induced draft fan, wherein the number of the air preheater, the blower and the induced draft fan is A, B two groups, and specifically comprises a first air preheater, a second air preheater, a first blower, a second blower, a first induced draft fan, a second induced draft fan and a plurality of pipelines; the first air feeder is connected with the first air preheater through a pipeline, and the first air preheater is connected with a boiler furnace through two pipelines; the first induced draft fan is arranged on a pipeline leading from the first air preheater to the smoke tower, and the second air feeder is connected with the second air preheater through the pipeline; the second air preheater is connected with the boiler furnace through two pipelines; the second induced draft fan is arranged on a pipeline leading to the smoke tower from the second air preheater; the outlet main pipe of the first air blower and the outlet main pipe of the second air blower are communicated through an outlet main pipe communication door of the air blowers; the tail flue of the boiler is divided into two parts, a low-temperature reheater is arranged in the main flue, a superheater is arranged in the bypass flue, and a flue gas adjusting baffle is arranged below an economizer with a lower flue;
the health monitoring device comprises:
a network switch 10; the network switch is a hardware platform for connecting the data interface, the data server and the workstation PC, and plays a role in connecting the system; the equipment is the basic equipment of the wind and smoke system of the traditional power plant, and the equipment is not shown in the figure of the utility model and is specifically connected;
as shown in fig. 1, the automatic control device 1 disposed on the blower is connected to a network switch 10 through a line or wireless communication, and further includes an on/off module 101, a blower selection module 102, an air volume monitoring module 103 and a control module 104, the blower selection module is connected to the on/off module, and the air volume monitoring module is connected to the blower selection module and the control module, respectively; the automatic control device 1 is used for respectively controlling the selection and the opening and closing of two air blowers, specifically, a single air blower can be selected to work or two air blowers can work simultaneously according to requirements, and the output balance of the two air blowers can be adjusted when the two air blowers work simultaneously;
the monitoring devices 2 arranged on the bearings of the air feeder and the draught fan are connected with the network switch 10 through lines or wireless communication, collect the running condition of the bearings of the draught fan in real time and start alarming when the running condition reaches a set threshold value;
the air quantity monitoring and adjusting device 3 is arranged on the air heater and the air preheater and is connected with a network switch through lines or wireless communication, the air quantity monitoring and adjusting device further comprises an air speed monitoring module 301, a temperature monitoring module 302 and an air quantity control module 303, and the air speed monitoring module and the temperature monitoring module are respectively connected with the air quantity control module; the air quantity monitoring and adjusting die is used for controlling the air quantity of cold air and hot air, so that the total air quantity entering the coal mill reaches the control requirement, and the outlet temperature meets the set range;
the temperature monitoring and controlling device 4 arranged on the superheater and the reheater is connected with the network switch 10 through line or wireless communication, the temperature monitoring and controlling device comprises a wall temperature measuring point module 401, a pressure monitoring module 402 and an early warning module 403 arranged on main welding points of the superheater and the reheater, the wall temperature measuring point module and the pressure monitoring module are connected with the early warning module, and when the wall temperature or the main welding point pressure exceeds a set threshold range, the early warning module is started and the network switch is informed;
the reheater protection device 5 arranged on the reheater delays for 7-9 seconds if the fuel quantity of the boiler exceeds the total fuel quantity of the boiler by 10-12 percent before the steam turbine rushes to rotate, and operates the boiler MFT (tripping of main fuel) to cut off the fuel of the boiler;
the temperature monitoring and alarming device 6 arranged on the economizer is connected with the network switch 10 through a line or wireless communication; the temperature monitoring and alarming device comprises a sensor module 601, a data acquisition module 602, a digital-to-analog conversion module 603, a control module 604 and an alarming module 605; the sensor module is arranged on the economizer body and used for collecting the temperature of the wall pipe of the economizer and is connected with the data collection module through a line; the data acquisition module is connected with the digital-to-analog conversion module and is used for performing digital-to-analog conversion on the acquired data; the digital-to-analog conversion module is connected with the control module, the control module is connected with the alarm module, and the control module sends the temperature to the network switch through the alarm module when the temperature of the economizer wall pipe reaches a temperature threshold corresponding to the critical wall thickness;
the concentration monitoring and warning device 7 arranged on the flue gas dust removal device is connected with the network switch 10 through line or wireless communication; the concentration monitoring and warning device comprises a smoke temperature sensor 701, a smoke flow sensor 702, a pressure sensor 703, a data conversion and processing module 704 and a warning module 705; the smoke temperature sensor, the smoke flow sensor and the pressure sensor are respectively connected with the data conversion and processing module, and the collected values of smoke temperature, smoke flow, pressure and the like are sent to the data conversion and processing module for judging whether the values are within a set threshold value; the data conversion and processing module is connected with the alarm module, and the alarm module is started and sent to the network switch when the numerical value exceeds a set threshold value;
the smoke monitoring and controlling device 8 is arranged on the smoke adjusting baffle and is connected with the network switch 10 through a line or wireless communication; the flue gas monitoring and controlling device 8 comprises a flue gas flow sensor 801, a data conversion and processing module 802, a baffle control module 803 and an alarm module 804; the flue gas flow sensor module is connected with the data conversion and processing module baffle control module and is used for sending the collected flue gas flow data to the data conversion and processing module and sending the data to the network switch after conversion and processing, and the baffle control module receives an instruction sent back by the network switch to realize the control of the opening and closing of the baffle and the opening of the baffle; the alarm module is connected with the data conversion and processing module, starts alarm when the data sent by the data conversion and processing module reaches a set threshold value, and sends alarm information to the network switch.
The utility model discloses a health monitoring device, each device of which sends the temperature, pressure and flow information collected by a sensor module, and the information of temperature alarm, device trip alarm, system fault alarm and the like to a network switch; furthermore, the network switch can be transmitted to a monitoring layer through the data server, a system monitoring person has the authority of checking process data information, whether the data is abnormal or not is analyzed by checking the data information, and if the data is abnormal, the data needs to be processed and controlled according to the situation.
Claims (1)
1. A health monitoring device for a smoking system, said smoking system comprising at least: the system comprises an air preheater, a blower, a draught fan, a flue gas adjusting baffle, a superheater, a reheater, an economizer and a flue gas dust removal device; the method is characterized in that: the health monitoring device comprises:
a network switch;
the automatic control device is arranged on the blower and is connected with the network switch through line or wireless communication, the automatic control device further comprises an on/off module, a blower selection module, an air volume monitoring module and a control module, the blower selection module is connected with the on/off module, and the air volume monitoring module is respectively connected with the blower selection module and the control module;
the monitoring devices arranged on the blower and the induced draft fan bearing are connected with the network switch through lines or wireless communication, collect the running condition of the fan bearing in real time and start alarm when reaching a set threshold;
the air quantity monitoring and adjusting device is arranged on the air heater and the air preheater and is connected with the network switch through a line or wireless communication, the air quantity monitoring and adjusting device further comprises an air speed monitoring module, a temperature monitoring module and an air quantity control module, and the air speed monitoring module and the temperature monitoring module are respectively connected with the air quantity control module;
the temperature monitoring and controlling device is arranged on the superheater and the reheater and is connected with the network switch through line or wireless communication, the temperature monitoring and controlling device comprises a wall temperature measuring point module, a pressure monitoring module and an early warning module, the pressure monitoring module and the early warning module are arranged on main welding points of the superheater and the reheater, and the wall temperature measuring point module and the pressure monitoring module are connected with the early warning module;
a reheater protection device disposed on the reheater;
the temperature monitoring and alarming device is arranged on the economizer and is connected with the network switch through line or wireless communication; the temperature monitoring and alarming device comprises a sensor module, a data acquisition module, a digital-to-analog conversion module, a control module and an alarming module; the sensor module is arranged on the economizer body and used for collecting the temperature of the wall pipe of the economizer and is connected with the data collection module through a line; the data acquisition module is connected with the digital-to-analog conversion module; the digital-to-analog conversion module is connected with the control module, and the control module is connected with the alarm module;
the concentration monitoring and warning device is arranged on the flue gas dust removal device and is connected with the network switch through line or wireless communication; the concentration monitoring and warning device comprises a smoke temperature sensor, a smoke flow sensor, a pressure sensor, a data conversion and processing module and a warning module; the smoke temperature sensor, the smoke flow sensor and the pressure sensor are respectively connected with the data conversion and processing module; the data conversion and processing module is connected with the alarm module;
the smoke monitoring and controlling device is arranged on the smoke adjusting baffle and is connected with the network switch through a line or wireless communication; the flue gas monitoring and controlling device comprises a flue gas flow sensor, a data conversion and processing module, a baffle control module and an alarm module; wherein the flue gas flow sensor is connected with the data conversion and processing module baffle control module; the alarm module is connected with the data conversion and processing module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023306889.6U CN214406000U (en) | 2020-12-30 | 2020-12-30 | Health monitoring equipment for wind and smoke system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023306889.6U CN214406000U (en) | 2020-12-30 | 2020-12-30 | Health monitoring equipment for wind and smoke system |
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| Publication Number | Publication Date |
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| CN214406000U true CN214406000U (en) | 2021-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023306889.6U Active CN214406000U (en) | 2020-12-30 | 2020-12-30 | Health monitoring equipment for wind and smoke system |
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| CN (1) | CN214406000U (en) |
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- 2020-12-30 CN CN202023306889.6U patent/CN214406000U/en active Active
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