CN211292884U - Pulverized coal combustion efficiency integrated online monitoring system of thermal power plant - Google Patents
Pulverized coal combustion efficiency integrated online monitoring system of thermal power plant Download PDFInfo
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- CN211292884U CN211292884U CN201921155477.1U CN201921155477U CN211292884U CN 211292884 U CN211292884 U CN 211292884U CN 201921155477 U CN201921155477 U CN 201921155477U CN 211292884 U CN211292884 U CN 211292884U
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Abstract
The utility model belongs to the technical field of monitoring system, especially, be a pulverized coal combustion efficiency integration on-line monitoring system of thermal power plant, the load simulator comprises a case, the sampling tube is installed to one side of quick-witted case, and the one end of sampling tube stretches into in the exhaust passage and is equipped with the flue gas import, and the sample piston is installed to the gomphosis in the sampling tube, and the middle part through connection of sample piston has flexible transfer line, and the one end intercommunication that the sampling tube is located quick-witted case has the cross connection, and the top of cross connection has the ignition shower nozzle through first solenoid valve turn-on connection, and the avris of ignition shower nozzle is. The utility model discloses set up the sample motor and drive the sample piston through circular arc grooved pulley group and take out the order smoke and dust to four way connection from the sampling pipe ration to carry out analysis and burning to the smoke and dust gas of gathering, or detect the further analysis of trachea conveying to the remote detection center through flue gas sampling bottle and instrument, and make corresponding measure, thereby promote the combustion efficiency of buggy.
Description
Technical Field
The utility model relates to a monitoring system technical field specifically is a pulverized coal combustion efficiency integration on-line monitoring system of thermal power plant.
Background
The huge total power generation amount of the thermal power generation is still the main mode of power supply in China, potential energy-saving points of the thermal power generation are excavated, the potential energy-saving points play an important role in energy conservation and emission reduction, how to reduce energy consumption of the thermal power generation is still the important subject of realizing the aim of energy conservation and emission reduction in China industry, the combustion condition of a boiler is optimized and the overall control level of unit operation is improved by perfecting real-time monitoring on the combustion process of the boiler, so that the boiler is a good choice in cost performance ratio to realize energy conservation and consumption reduction, the combustion of boiler pulverized coal is a rapid and complex physical and chemical process, pulverized coal parameters, air quantity parameters, distribution proportions and the like fed into a boiler furnace need to be mastered in time, the combustion quality directly reflects the combustion efficiency of the boiler, and if various combustion parameters need to be adjusted in time, signals for rapidly reflecting, the boiler coal combustion efficiency on-line monitoring system can realize real-time measurement of unburned carbon after pulverized coal combustion and rapid measurement of carbon monoxide and oxygen amount reflecting the combustion sufficiency, and once the most important combustion signals are fed back to other equipment of the boiler and rapidly adjusted and maintained at the optimal combustion working condition, the boiler combustion can be controlled in a more efficient and reasonable state, so that the energy conservation and consumption reduction of the boiler operation are realized.
The current coal powder combustion efficiency monitoring system of a thermal power plant has the following problems:
1. most of the conventional coal powder combustion efficiency monitoring systems of thermal power plants are fixed, and the flue gas generated after coal powder combustion cannot be accurately collected and further analyzed;
2. most of the existing thermal power plant pulverized coal combustion efficiency monitoring systems are of structures with mutually independent detection and corresponding measures, so that the response of the corresponding measures after monitoring is slow.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a not enough to prior art, the utility model provides a pulverized coal combustion efficiency integration on-line monitoring system of thermal power plant has solved and can not carry out accurate collection and analysis to the flue gas after the pulverized coal burning among the prior art to and detect and the measure that corresponds each other independently leads to the slow problem of response measure reaction after the monitoring.
(II) technical scheme
In order to achieve the above object, the utility model provides a following technical scheme: an integrated on-line monitoring system for the combustion efficiency of pulverized coal in a thermal power plant comprises a case, a sampling tube is arranged on one side of the case, one end of the sampling tube extends into the smoke exhaust channel and is provided with a smoke inlet, a sampling piston is embedded in the sampling tube, the middle part of the sampling piston is connected with a telescopic transmission rod in a penetrating way, one end of the sampling tube, which is positioned on the case, is communicated with a four-way joint, the top end of the four-way joint is connected with an ignition nozzle through a first electromagnetic valve in a conduction way, the side of the ignition nozzle is surrounded with a temperature detector and a carbon dioxide concentration detector, the bottom end of the four-way joint is connected with a three-way joint in a conduction way through a second electromagnetic valve, a smoke sampling bottle is fixed in the middle of one side of the outer wall of the case, the bottom of machine case outer wall one side intercommunication is installed instrument and is detected the trachea, three way connection turn-on connection the flue gas sampling bottle with instrument detects the trachea.
As an optimized technical scheme of the utility model, four way connection's the other end is equipped with annular sealing plug, flexible transfer line activity runs through annular sealing plug.
As a preferred technical scheme of the utility model, the sample motor is installed to machine incasement chamber's opposite side, the pivot of sample motor concatenates and is fixed with circular arc grooved pulley group, circular arc grooved pulley group clamping connection flexible transfer line.
As an optimal technical scheme of the utility model, the inner chamber of machine case is fixed with monitoring processing chip, wireless communication chip and relay through the circuit board, temperature detector with carbon dioxide concentration detector's wire electric connection the monitoring processing chip, the monitoring processing chip passes through relay electric connection first solenoid valve the ignition shower nozzle the second solenoid valve with the sample motor, the monitoring processing chip passes through wireless communication chip and remote monitoring central signal are connected.
As an optimal technical scheme of the utility model, the positive gomphosis of machine case has the display screen, display screen electric connection the monitoring chip.
As a preferred technical scheme of the utility model, the sampling tube with the sampling piston is made by stainless steel material or ceramic material.
(III) advantageous effects
Compared with the prior art, the utility model provides a pulverized coal combustion efficiency integration on-line monitoring system of thermal power plant possesses following beneficial effect:
1. this pulverized coal combustion efficiency integration on-line monitoring system of thermal power plant sets up the sampling motor and passes through circular arc sheave group and drive the sampling piston and take out the order smoke and dust gas to four-way connection from the sampling pipe ration to carry out analysis and burning to the smoke and dust gas of gathering, or detect the further analysis of trachea conveying to the remote detection center through flue gas sampling bottle and instrument, and make corresponding measure, thereby promote the combustion efficiency of buggy.
2. This pulverized coal combustion efficiency integration on-line monitoring system of thermal power plant, the carbon dioxide concentration information transmission after temperature information and the burning during with the burning is to the monitoring processing chip, convey to the remote control center in real time through the wireless communication chip, realize integration on-line monitoring, the remote control center conveys corresponding instruction to the monitoring processing chip through the wireless communication chip, to first solenoid valve, the ignition shower nozzle, second solenoid valve and sampling motor control, integrated on-line control's function has been realized.
Drawings
FIG. 1 is a schematic view of the subjective structure of the present invention;
FIG. 2 is a schematic view of the sampling piston away from the four-way joint structure according to the present invention;
FIG. 3 is a schematic view of the structure of the sampling piston near the four-way joint of the present invention;
fig. 4 is the utility model discloses circular arc groove wheelset and flexible transfer line connection structure sketch.
In the figure: 1. a chassis; 2. a sampling tube; 3. a flue gas inlet; 4. a sampling piston; 5. a telescopic transmission rod; 6. a four-way joint; 7. a first solenoid valve; 8. an ignition nozzle; 9. a temperature detector; 10. a carbon dioxide concentration detector; 11. a second solenoid valve; 12. a three-way joint; 13. a flue gas sampling bottle; 14. the instrument detects the air pipe; 15. an annular sealing plug; 16. a sampling motor; 17. a circular arc grooved wheel set; 18. monitoring a processing chip; 19. a wireless communication chip; 20. a relay; 21. a display screen.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
Referring to fig. 1-4, the present invention provides the following technical solutions: the utility model provides a pulverized coal combustion efficiency integration on-line monitoring system of thermal power plant, including quick-witted case 1, sampling tube 2 is installed to one side of quick-witted case 1, the one end of sampling tube 2 stretches into in the exhaust passage and is equipped with flue gas inlet 3, sample piston 4 is installed to the gomphosis in the sampling tube 2, the middle part through connection of sample piston 4 has telescopic transmission pole 5, the one end intercommunication that sampling tube 2 is located quick-witted case 1 has four way connection 6, four way connection 6's top has ignition shower nozzle 8 through first solenoid valve 7 turn-on connection, the avris of ignition shower nozzle 8 is surrounded there are temperature detector 9 and carbon dioxide concentration detector 10, four way connection 6's bottom has three way connection 12 through second solenoid valve 11 turn-on connection, the middle part of machine case 1 outer wall one side is fixed with flue gas sampling bottle 13, instrument detection trachea 14 is installed to the bottom intercommunication of machine case 1 outer wall one.
In this embodiment, the sampling piston 4 is driven by the telescopic transmission rod 5 to reciprocate in the sampling tube 2, when the sampling piston 4 is pushed by the telescopic transmission rod 5 to move to one end of the sampling tube 2 extending into the smoke exhaust channel, carbon-containing soot gas in the smoke exhaust channel flows into the sampling tube 2 from the smoke inlet 3, after the telescopic transmission rod 5 pulls the sampling piston 4 to pass through the smoke inlet 3 after a set time, the soot gas flowing into the sampling tube 2 is sealed by the sampling piston 4, when the sampling piston 4 is pulled by the telescopic transmission rod 5 to continue to move from one end of the sampling tube 2 to the other end, the soot gas enters the four-way joint 6 under the driving of the sampling piston 4, when the first electromagnetic valve 7 is switched on and the second electromagnetic valve 11 is switched on, the soot gas enters the ignition nozzle 8 from the first electromagnetic valve 7 and is ignited, when the coal dust sampling device is ignited, the temperature detector 9 detects the ignited temperature, the carbon dioxide concentration detector 10 detects the concentration of carbon dioxide generated after ignition, so that the carbon content in the smoke gas is measured, the combustion efficiency of the coal dust of a thermal power plant is further calculated, when the first electromagnetic valve 7 is closed and the second electromagnetic valve 11 is conducted, the smoke gas in the sampling pipe 2 is pushed to the smoke gas sampling bottle 13 by the sampling piston 4 for sampling, or pushed to the instrument detection gas pipe 14 for further detection on the special carbon-containing gas detection instrument.
The utility model discloses in, temperature detect ware 9 adopts AS872D type infrared induction formula thermometer, and its operating temperature interval is 50 degrees centigrade to 1150 degrees centigrade below zero, consequently can carry out accurate detection to the produced temperature of smoke and dust burning well, and carbon dioxide concentration detector 10 adopts AR8200 type carbon dioxide detector, and its measuring range is 350 and 9999PPM, and resolution ratio is high to have the dual alarming function of reputation, consequently can carry out accurate detection to the carbon dioxide gas that produces when burning.
Specifically, the other end of the four-way joint 6 is provided with an annular sealing plug 15, and the telescopic transmission rod 5 movably penetrates through the annular sealing plug 15.
In this embodiment, the annular sealing plug 15 is used for sealing the junction of the four-way joint 6 and the telescopic transmission rod 5, so that the collected smoke and dust gas is prevented from leaking out from the junction of the telescopic transmission rod 5 and the four-way joint 6 to influence the detection precision.
Specifically, a sampling motor 16 is installed on the other side of the inner cavity of the case 1, a rotating shaft of the sampling motor 16 is fixedly connected with an arc grooved wheel set 17 in series, and the arc grooved wheel set 17 is connected with the telescopic transmission rod 5 in a clamping manner.
In this embodiment, the sampling motor 16 rotates forward, the arc groove wheel set 17 drives the telescopic transmission rod 5 to extend forward, the telescopic transmission rod 5 pushes the sampling piston 4 to reach one end of the sampling tube 2 extending into the smoke outlet pipeline, so that the smoke gas enters the sampling tube 2 from the smoke inlet 3, then the sampling motor 16 rotates backward, the arc groove wheel set 17 drives the telescopic transmission rod 5 to retract, and the collected smoke gas is driven to enter the four-way joint 6, so that the collected smoke gas is analyzed and combusted.
Specifically, the inner cavity of the case 1 is fixed with a monitoring processing chip 18, a wireless communication chip 19 and a relay 20 through a circuit board, the wires of the temperature detector 9 and the carbon dioxide concentration detector 10 are electrically connected with the monitoring processing chip 18, the monitoring processing chip 18 is electrically connected with the first electromagnetic valve 7, the ignition nozzle 8, the second electromagnetic valve 11 and the sampling motor 16 through the relay 20, and the monitoring processing chip 18 is in signal connection with a remote monitoring center through the wireless communication chip 19.
Specifically, a display screen 21 is embedded in the front surface of the chassis 1, and the display screen 21 is electrically connected to the monitoring processing chip 18.
In this embodiment, the monitoring processing chip 18 calculates and digitally converts the combustion temperature information and the carbon dioxide concentration of the soot gas detected by the temperature detector 9 and the carbon dioxide concentration detector 10, and then transmits the calculated and digitally converted information to the display screen 21 for displaying, so that the worker who performs the integrated online monitoring of the pulverized coal combustion efficiency of the thermal power plant knows the current combustion temperature and the carbon dioxide content, thereby rapidly judging the combustion efficiency of the current pulverized coal.
Specifically, the sampling tube 2 and the sampling piston 4 are made of a stainless steel material or a ceramic material.
In this embodiment, stainless steel material or ceramic material have high temperature resistant and anticorrosive characteristic, consequently the utility model discloses a stainless steel material or ceramic material preparation sampling tube 2 and sample piston 4 can strengthen by a wide margin the utility model discloses the life of product.
In this embodiment, the temperature detector 9, the carbon dioxide concentration detector 10, the monitoring processing chip 18, and the wireless communication chip 19 are known technologies that have been disclosed and widely used in daily life.
The utility model discloses a theory of operation and use flow: the sampling motor 16 rotates forward, the telescopic transmission rod 5 is driven to extend forward through the arc groove wheel set 17, the telescopic transmission rod 5 pushes the sampling piston 4 to reach one end of the sampling pipe 2 extending into the smoke outlet pipeline, so that smoke gas enters the sampling pipe 2 from the smoke inlet 3, then the sampling motor 16 rotates reversely, the telescopic transmission rod 5 is driven to retract through the arc groove wheel set 17, the collected smoke gas is driven to enter the four-way joint 6, at the moment, when the first electromagnetic valve 7 is conducted and the second electromagnetic valve 11 is closed, the smoke gas enters the ignition nozzle 8 from the first electromagnetic valve 7 and is ignited, the temperature detector 9 detects the ignition temperature when the smoke gas is ignited, the carbon dioxide concentration detector 10 detects the carbon dioxide concentration generated after the ignition, the carbon content in the smoke gas is measured, the combustion efficiency of the coal powder plant is calculated, when the first electromagnetic valve 7 is closed, when the second electromagnetic valve 11 is turned on, the smoke gas in the sampling tube 2 is pushed by the sampling piston 4 to the smoke sampling bottle 13 for sampling, or pushed to the instrument detection gas tube 14 to be conveyed to a special carbon-containing gas detection instrument for further detection.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a pulverized coal combustion efficiency integration on-line monitoring system of thermal power plant, includes quick-witted case (1), its characterized in that: sampling tube (2) is installed to one side of quick-witted case (1), the one end of sampling tube (2) stretches into in the exhaust passage and is equipped with flue gas inlet (3), sample piston (4) are installed to gomphosis in sampling tube (2), the middle part through connection of sample piston (4) has telescopic transmission pole (5), the one end intercommunication that sampling tube (2) are located quick-witted case (1) has four-way connection (6), there are ignition nozzle (8) on the top of four-way connection (6) through first solenoid valve (7) conduction connection, the avris of ignition nozzle (8) is encircleed there are temperature detector (9) and carbon dioxide concentration detector (10), there are three-way connection (12) in the bottom of four-way connection (6) through second solenoid valve (11), the middle part of quick-witted case (1) outer wall one side is fixed with flue gas sampling bottle (13), the bottom intercommunication of machine case (1) outer wall one side is installed instrument and is detected trachea (14), three way connection (12) turn-on connection flue gas sampling bottle (13) with instrument detects trachea (14).
2. The integrated on-line monitoring system for pulverized coal combustion efficiency of a thermal power plant according to claim 1, characterized in that: the other end of the four-way joint (6) is provided with an annular sealing plug (15), and the telescopic transmission rod (5) movably penetrates through the annular sealing plug (15).
3. The integrated on-line monitoring system for pulverized coal combustion efficiency of a thermal power plant according to claim 1, characterized in that: a sampling motor (16) is installed on the other side of the inner cavity of the case (1), a rotating shaft of the sampling motor (16) is fixedly connected with an arc groove wheel set (17) in series, and the arc groove wheel set (17) is connected with the telescopic transmission rod (5) in a clamping mode.
4. The integrated on-line monitoring system for pulverized coal combustion efficiency of a thermal power plant according to claim 3, characterized in that: the inner chamber of machine case (1) is fixed with monitoring and processing chip (18), wireless communication chip (19) and relay (20) through the circuit board, temperature detector (9) with the wire electric connection of carbon dioxide concentration detector (10) monitoring and processing chip (18), monitoring and processing chip (18) pass through relay (20) electric connection first solenoid valve (7), ignition shower nozzle (8) second solenoid valve (11) and sample motor (16), monitoring and processing chip (18) pass through wireless communication chip (19) and remote monitoring center signal connection.
5. The integrated on-line monitoring system for pulverized coal combustion efficiency of a thermal power plant according to claim 4, characterized in that: the front surface of the case (1) is embedded with a display screen (21), and the display screen (21) is electrically connected with the monitoring processing chip (18).
6. The integrated on-line monitoring system for pulverized coal combustion efficiency of a thermal power plant according to claim 1, characterized in that: the sampling tube (2) and the sampling piston (4) are made of stainless steel materials or ceramic materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921155477.1U CN211292884U (en) | 2019-07-22 | 2019-07-22 | Pulverized coal combustion efficiency integrated online monitoring system of thermal power plant |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921155477.1U CN211292884U (en) | 2019-07-22 | 2019-07-22 | Pulverized coal combustion efficiency integrated online monitoring system of thermal power plant |
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| CN211292884U true CN211292884U (en) | 2020-08-18 |
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| CN201921155477.1U Active CN211292884U (en) | 2019-07-22 | 2019-07-22 | Pulverized coal combustion efficiency integrated online monitoring system of thermal power plant |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112504772A (en) * | 2020-12-18 | 2021-03-16 | 黑龙江建龙化工有限公司 | Improved method for improving analysis speed of carbon dioxide of cold box population |
| CN113341080A (en) * | 2021-08-06 | 2021-09-03 | 国网浙江省电力有限公司营销服务中心 | Carbon emission monitoring and alarming system for power production |
-
2019
- 2019-07-22 CN CN201921155477.1U patent/CN211292884U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112504772A (en) * | 2020-12-18 | 2021-03-16 | 黑龙江建龙化工有限公司 | Improved method for improving analysis speed of carbon dioxide of cold box population |
| CN113341080A (en) * | 2021-08-06 | 2021-09-03 | 国网浙江省电力有限公司营销服务中心 | Carbon emission monitoring and alarming system for power production |
| CN113341080B (en) * | 2021-08-06 | 2021-10-26 | 国网浙江省电力有限公司营销服务中心 | Carbon emission monitoring and alarming system for power production |
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