阅读说明：本技术 一种基于co实时监测的水冷壁高温腐蚀监测系统 (Water-cooled wall high temperature corrosion monitoring system based on CO real-time supervision ) 是由 刘国刚 王栩 王垚 李�杰 冯春 侯逊 赵子龙 张华东 陈建亮 马东森 刘兴力 于 2020-12-04 设计创作，主要内容包括：本申请涉及一种基于CO实时监测的水冷壁高温腐蚀监测系统,其包括安装框架和多个水平设置的监测管,多个监测管沿安装框架的高度方向均匀分布,且一端连通锅炉内部；监测管内竖直设置有用于封堵监测管的阀板,阀板的上端贯穿监测管,且竖直滑动连接于监测管,并且阀板的上端竖直设置有阀杆；监测管内设置有位于阀板后方且贴合阀板的密封板,密封板水平滑动连接于监测管,且背离阀板的一端水平设置有延伸至监测管外部的驱动杆；还包括用于检测CO浓度的浓度检测仪,浓度检测仪上连接有多个监测探头,监测探头嵌设于监测管内,且位于阀板的后方,并且监测探头与阀板之间留有容纳密封板的空间。本申请具有实时监测锅炉内部的CO含量的效果。(The application relates to a CO real-time monitoring-based water-cooled wall high-temperature corrosion monitoring system, which comprises an installation frame and a plurality of monitoring pipes which are horizontally arranged, wherein the monitoring pipes are uniformly distributed along the height direction of the installation frame, and one end of each monitoring pipe is communicated with the interior of a boiler; a valve plate for plugging the monitoring pipe is vertically arranged in the monitoring pipe, the upper end of the valve plate penetrates through the monitoring pipe and is vertically and slidably connected with the monitoring pipe, and a valve rod is vertically arranged at the upper end of the valve plate; a sealing plate which is positioned behind the valve plate and is attached to the valve plate is arranged in the monitoring pipe, the sealing plate is horizontally and slidably connected to the monitoring pipe, and a driving rod extending to the outside of the monitoring pipe is horizontally arranged at one end, which is far away from the valve plate; still including the concentration detection appearance that is used for detecting CO concentration, be connected with a plurality of monitor probe on the concentration detection appearance, monitor probe inlays locates in the monitoring pipe, and is located the rear of valve plate to leave the space that holds the closing plate between monitor probe and the valve plate. The method and the device have the effect of monitoring the CO content in the boiler in real time.)

1. The utility model provides a water-cooling wall high temperature corrosion monitoring system based on CO real-time supervision which characterized in that: the monitoring system comprises an installation frame (1) fixed on the outer wall of a boiler and a plurality of horizontally arranged monitoring pipes (2), wherein the monitoring pipes (2) are uniformly distributed along the height direction of the installation frame (1), and one ends of the monitoring pipes are communicated with the interior of the boiler;

a valve plate (3) used for plugging the monitoring pipe (2) is vertically arranged in the monitoring pipe (2), the upper end of the valve plate (3) penetrates through the monitoring pipe (2) and is vertically and slidably connected to the monitoring pipe (2), and a valve rod (31) is vertically arranged at the upper end of the valve plate (3);

a sealing plate (4) which is positioned behind the valve plate (3) and is attached to the valve plate (3) is arranged in the monitoring pipe (2), the sealing plate (4) is horizontally and slidably connected to the monitoring pipe (2), and a driving rod (41) extending to the outside of the monitoring pipe (2) is horizontally arranged at one end, which is far away from the valve plate (3);

still including concentration detection appearance (8) that is used for detecting CO concentration, be connected with a plurality of monitor probe (81) on concentration detection appearance (8), monitor probe (81) are inlayed and are located in monitor pipe (2), and are located the rear of valve plate (3), and monitor probe (81) with leave between valve plate (3) and hold the space of closing plate (4).

2. The water-cooled wall high-temperature corrosion monitoring system based on CO real-time monitoring is characterized in that: a supporting seat (5) located behind the valve rod (31) is arranged on the outer wall of the monitoring pipe (2), a rotating shaft (51) is horizontally and rotatably connected to the supporting seat (5), a driven gear (52) is arranged on the outer wall of the rotating shaft (51), and a driven rack (32) meshed with the driven gear (52) is arranged on the valve rod (31);

the monitoring device is characterized in that a linkage rod (42) is vertically and upwards arranged at one end, located outside the monitoring pipe (2), of the driving rod (41), an active rack (43) is horizontally arranged at the upper end of the linkage rod (42), a driving gear (53) is arranged on the rotating shaft (51), and the active rack (43) is located above the driving gear (53) and meshed with the driving gear (53).

3. The water-cooled wall high-temperature corrosion monitoring system based on CO real-time monitoring is characterized in that: the two driving gears (53) are distributed on two sides of the driven gear (52), and the two driving racks (43) are arranged side by side and are respectively meshed with the two driving gears (53).

4. The water-cooled wall high-temperature corrosion monitoring system based on CO real-time monitoring is characterized in that: two one end that initiative rack (43) deviate from trace (42) is bent downwards and is provided with guide bar (44), offer on monitoring pipe (2) and supply guide bar (44) gliding guide way (22).

5. The water-cooled wall high-temperature corrosion monitoring system based on CO real-time monitoring is characterized in that: the lower extreme of trace (42) is provided with slider (45), the outer wall of actuating lever (41) is provided with along its axial direction setting and supplies spout (46) that slider (45) slided.

6. The water-cooled wall high-temperature corrosion monitoring system based on CO real-time monitoring is characterized in that: a plurality of connecting rods (6) are vertically arranged between the ends, deviating from the sealing plate (4), of the driving rods (41), and pull rods (61) penetrating through the mounting frame (1) are horizontally arranged in the middle of the connecting rods (6).

7. The water-cooled wall high-temperature corrosion monitoring system based on CO real-time monitoring is characterized in that: the outer wall cover of pull rod (61) is equipped with spring (62), spring (62) are located connecting rod (6) with between the inner wall of installation frame (1).

8. The water-cooled wall high-temperature corrosion monitoring system based on CO real-time monitoring is characterized in that: the pull rod (61) deviates from the connecting rod (6) and is provided with a handle (63), and a locking mechanism (7) is arranged between the handle (63) and the outer wall of the mounting frame (1).

9. The water-cooled wall high-temperature corrosion monitoring system based on CO real-time monitoring is characterized in that: locking mechanical system (7) including the level set up in locking lever (71) on handle (63), locking lever (71) deviate from the one end of handle (63) is provided with locking ball (72), handle (63) rotate connect in pull rod (61), the outer wall of frame is provided with the confession locking groove (12) of locking ball (72) embedding and confession locking ball (72) rotatory embedding ring channel (13).

Technical Field

The application relates to the field of boiler monitoring, in particular to a water-cooled wall high-temperature corrosion monitoring system based on CO real-time monitoring.

Background

When the combustion boiler is used, the high-temperature corrosion phenomenon easily occurs to the water-cooled wall in the combustion boiler, mainly when the content of CO in the near-wall flue gas is high, the flue gas is in a strong reducing atmosphere, and meanwhile, a large amount of gases such as H2S exist in the flue gas, so that the high-temperature corrosion of the water-cooled wall is easily caused.

When monitoring the content of CO in a traditional combustion boiler, a detector is usually set at the tail gas emission position of the boiler, and the content of CO in the tail gas is monitored by using the detector, but the monitoring mode cannot monitor the content of CO in the boiler in real time and needs to be improved.

In view of the above-mentioned related technologies, the inventor believes that there is a defect that the CO content inside the boiler cannot be monitored in real time.

Disclosure of Invention

In order to monitor the CO content in the boiler in real time, the application provides a water-cooling wall high-temperature corrosion monitoring system based on CO real-time monitoring.

The application provides a water-cooling wall high temperature corrosion monitoring system based on CO real-time supervision adopts following technical scheme:

a water-cooled wall high-temperature corrosion monitoring system based on CO real-time monitoring comprises an installation frame fixed on the outer wall of a boiler and a plurality of monitoring tubes arranged horizontally, wherein the monitoring tubes are uniformly distributed along the height direction of the installation frame, and one end of each monitoring tube is communicated with the interior of the boiler; a valve plate used for plugging the monitoring pipe is vertically arranged in the monitoring pipe, the upper end of the valve plate penetrates through the monitoring pipe and is vertically and slidably connected with the monitoring pipe, and a valve rod is vertically arranged at the upper end of the valve plate; a sealing plate which is positioned behind the valve plate and is attached to the valve plate is arranged in the monitoring pipe, the sealing plate is horizontally and slidably connected to the monitoring pipe, and one end, which is far away from the valve plate, of the sealing plate is horizontally provided with a driving rod which extends to the outside of the monitoring pipe; the device is characterized by further comprising a concentration detector for detecting the concentration of CO, wherein the concentration detector is connected with a plurality of monitoring probes, the monitoring probes are embedded in the monitoring pipes and located behind the valve plate, and a space for accommodating the sealing plate is reserved between the monitoring probes and the valve plate.

Through adopting above-mentioned technical scheme, when being applied to the boiler with above-mentioned monitoring system, make inside a plurality of monitoring pipe intercommunication boilers to distribute in the not co-altitude position of boiler, make the valve plate close simultaneously and carry out the shutoff to the monitoring pipe, closing plate laminating valve plate simultaneously, and monitor is located the rear position department of closing plate. When the CO concentration in the boiler needs to be checked, the valve rod is pulled to drive the valve plate to move upwards, the valve plate is opened, then the driving rod is pulled to control the sealing plate to gradually keep away from the valve plate, and at the moment, the smoke in the boiler is automatically sucked. When the sealing plate moves to the rear of the monitoring probe, the monitoring probe can be used for monitoring the CO concentration in the monitoring pipe and feeding back the CO concentration to the concentration monitor, and therefore real-time monitoring of the CO concentration in the boiler is achieved. And finally, the sealing plate is controlled to move reversely, and the valve plate is controlled to move downwards at the same time, so that the smoke in the monitoring pipe is exhausted, and the monitoring pipe is blocked. Therefore, by setting the monitoring system for multi-point position monitoring, the real-time sampling and monitoring of the flue gas at each position of the boiler are realized, and the real-time monitoring of the CO concentration in the boiler is realized. Meanwhile, after the monitoring is finished, the flue gas is pushed into the boiler again, so that the environment is prevented from being polluted by the flue gas, and pollution-free sampling and monitoring are realized.

Optionally, a support seat located behind the valve rod is arranged on the outer wall of the monitoring pipe, a rotating shaft is horizontally and rotatably connected to the support seat, a driven gear is arranged on the outer wall of the rotating shaft, and a driven rack meshed with the driven gear is arranged on the valve rod; the monitoring device comprises a monitoring pipe, a driving rod, a linkage rod, a driving gear and a rotating shaft, wherein the driving rod is located at one end outside the monitoring pipe, the linkage rod is vertically and upwards arranged, the upper end of the linkage rod is horizontally provided with the driving rack, the rotating shaft is provided with the driving gear, and the driving rack is located above the driving gear and meshed with the driving gear.

Through adopting above-mentioned technical scheme, when taking a sample the monitoring to the flue gas, pulling the actuating lever and driving the closing plate and keep away from the valve plate, actuating lever drive trace and initiative rack synchronous motion this moment. The driving rack drives the driving gear, the rotating shaft and the driven gear to synchronously rotate, the driven gear drives the driven rack to move upwards at the moment, the valve rod and the valve plate are controlled to move upwards, and automatic opening control of the monitoring pipe is achieved. When the flue gas monitoring is finished, the driving rod is controlled to drive the sealing plate to be close to the valve plate, and at the moment, the driving rod drives the linkage rod and the driving rack to synchronously move. And then the driving rack drives the driving gear, the rotating shaft and the driven gear to synchronously and reversely rotate, and the driven gear drives the driven rack to move downwards at the moment, and controls the valve rod and the valve plate to move downwards, so that the automatic closing control of the monitoring pipe is realized. Consequently, through setting up the ingenious linkage structure of structure, utilize the slip control valve plate automatic opening and close of closing plate to the sampling monitoring process that realizes the flue gas is light convenient more.

Optionally, the driving gears are provided with two driving gears, and distributed on two sides of the driven gear, and the driving rack is provided with two driving racks side by side, and respectively engaged with the two driving gears.

Through adopting above-mentioned technical scheme, through setting up driving gear and driving gear into two, realize the stable transmission between driven gear and the driven rack, avoid appearing the card pause phenomenon to realize the stable sample and the monitoring of flue gas.

Optionally, one end of each of the two driving racks, which deviates from the linkage rod, is provided with a guide rod in a downward bending manner, and the monitoring pipe is provided with a guide groove for the guide rod to slide.

Through adopting above-mentioned technical scheme, through the cooperation that sets up guide bar and guide way, realize the spacing of initiative rack, the restriction initiative rack is along the route steady motion of regulation, avoids the initiative rack phenomenon of beating to appear simultaneously, realizes the stable sample and the monitoring of flue gas.

Optionally, the lower end of the linkage rod is provided with a sliding block, and the outer wall of the driving rod is provided with a sliding groove which is arranged along the axial direction of the driving rod and is used for the sliding of the sliding block.

Through adopting above-mentioned technical scheme, because the sliding fit who adopts slider and spout between trace and the actuating lever, consequently when the valve plate was kept away from to the actuating lever drive closing plate, slider and spout synchronous slip, the position of closing plate changed and the position of trace is unchangeable, will produce the negative pressure between closing plate and the valve plate this moment. When the sliding block moves to the position of one end of the sliding groove close to the sealing plate, the linkage rod is driven to move, and therefore the valve plate is opened. Meanwhile, due to the existence of negative pressure, the monitoring pipe can rapidly suck the smoke in the boiler into the monitoring pipe, and simultaneously suck the smoke close to the wall into the monitoring pipe as much as possible so as to ensure the monitoring precision. After the monitoring is finished, when the driving rod is controlled to drive the sealing plate to be close to the valve plate, the sliding block and the sliding groove slide synchronously at the moment, and the valve plate is ensured not to move downwards under the action of friction force of the sliding block and the sliding groove. When the slide block moves to the position of one end of the sliding groove far away from the sealing plate, the linkage rod is driven to move, and therefore the valve plate is closed. Therefore, the linkage rod in sliding connection is arranged, so that delayed movement between the sealing plate and the valve plate is realized, and the near-wall smoke in the boiler is sucked into the monitoring pipe as much as possible under the action of negative pressure in the monitoring pipe, so that the monitoring precision is ensured.

Optionally, a plurality of connecting rods are vertically arranged between the ends, away from the sealing plate, of the driving rods, and a pull rod penetrating through the mounting frame is horizontally arranged in the middle of each connecting rod.

Through adopting above-mentioned technical scheme, when monitoring the flue gas in the boiler, the pulling pull rod drives connecting rod and a plurality of actuating lever synchronous motion, realizes the synchronous monitoring and the simultaneous monitoring of each position flue gas, also makes the monitoring process of flue gas convenient and fast more simultaneously.

Optionally, the outer wall cover of pull rod is equipped with the spring, the spring is located the connecting rod with between the inner wall of installation frame.

Through adopting above-mentioned technical scheme, when the flue gas monitoring finishes, the flashboard carries out the shutoff to the monitoring pipe, and the resilience force of spring this moment will act on the connecting rod to make the closing plate tightly contradict the flashboard, realize the stable sealed of monitoring pipe, also avoid the workman to touch the pull rod by mistake simultaneously, guarantee whole monitoring system's stability in use.

Optionally, one end of the pull rod, which deviates from the connecting rod, is provided with a handle, and a locking mechanism is arranged between the handle and the outer wall of the mounting frame.

Through adopting above-mentioned technical scheme, after the flue gas monitoring finishes, fix the handle through utilizing locking mechanical system, further realize that the locking of pull rod is fixed to the stability in use of increase pull rod.

Optionally, the locking mechanism includes the level set up in locking lever on the handle, the one end that the locking lever deviates from the handle is provided with the locking ball, the handle rotate connect in the pull rod, the outer wall of frame is provided with the confession locking groove of locking ball embedding and confession the ring channel of the rotatory embedding of locking ball.

Through adopting above-mentioned technical scheme, when locking the handle, with locking ball embedding locking inslot, then rotate the handle and drive locking lever and locking ball simultaneous movement, when until locking ball embedding ring channel in, realize fixed after to realize the locking of pull rod. When the handle is released, the handle is rotated to drive the locking rod and the locking ball to rotate reversely until the locking ball moves to the communication position of the locking groove and the annular groove, and then the release of the handle can be realized, so that the release of the pull rod is realized. Therefore, the quick locking and releasing of the pull rod are realized through the locking mechanism which is simple in structure and convenient to operate.

In summary, the present application includes at least one of the following beneficial technical effects:

by arranging a multi-point position monitoring system, the real-time sampling and monitoring of the flue gas at each position of the boiler are realized, so that the real-time monitoring of the CO concentration in the boiler is realized, meanwhile, the flue gas is ensured not to be discharged outside, the pollution to the environment is avoided, and the pollution-free sampling and monitoring are realized;

by arranging the linkage structure with ingenious structure, the sliding of the sealing plate is utilized to control the valve plate to be automatically opened and closed, so that the sampling and monitoring process of the flue gas is easier and more convenient;

the delay movement between the sealing plate and the valve plate is realized by arranging the linkage rod in sliding connection, and the near-wall smoke in the boiler is sucked into the monitoring pipe as much as possible under the action of negative pressure in the monitoring pipe so as to ensure the monitoring precision;

through controlling the synchronous motion of a plurality of actuating levers, realize the synchronous monitoring and the simultaneous monitoring of each position flue gas, also make the monitoring process of flue gas convenient and fast more simultaneously.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic diagram of a position relationship of a monitoring tube in the embodiment of the present application.

Fig. 3 is a schematic structural diagram of a monitoring tube in the embodiment of the present application.

Fig. 4 is a schematic view of the internal structure of the monitoring tube in the embodiment of the present application.

Description of reference numerals: 1. a mounting frame; 11. mounting holes; 12. a locking groove; 13. an annular groove; 2. monitoring the pipe; 21. a valve bore; 22. a guide groove; 3. a valve plate; 31. a valve stem; 32. a driven rack; 4. a sealing plate; 41. a drive rod; 42. a linkage rod; 43. a driving rack; 44. a guide bar; 45. a slider; 46. a chute; 5. a supporting seat; 51. a rotating shaft; 52. a driven gear; 53. a driving gear; 6. a connecting rod; 61. a pull rod; 62. a spring; 63. a handle; 7. a locking mechanism; 71. a locking lever; 72. a locking ball; 8. a concentration detector; 81. the probe is monitored.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses water-cooled wall high temperature corrosion monitoring system based on CO real-time supervision. Referring to fig. 1, the monitoring system includes a mounting frame 1 and a plurality of monitoring pipes 2, the mounting frame 1 being a rectangular frame and vertically fixed to an outer wall of a boiler. A plurality of monitoring pipe 2 levels are fixed in on the installation frame 1, and wherein a plurality of monitoring pipe 2 are along the direction of height evenly distributed of installation frame 1, and wherein one end intercommunication boiler's inside to realize the sample of the different height position of boiler.

Referring to fig. 2 and 3, the valve plate 3 is vertically arranged at the middle position of the monitoring pipe 2, and the periphery of the valve plate 3 tightly supports against the inner wall of the monitoring pipe 2, so that the monitoring pipe 2 is blocked. Wherein monitoring pipe 2 is run through to the upper end of valve plate 3, sets up the valve opening 21 that supplies 3 vertical slides of valve plate on the monitoring pipe 2 to the vertical fixedly connected with valve rod 31 in upper end of valve plate 3 is used for controlling the vertical reciprocating motion of valve plate 3.

Referring to fig. 3 and 4, a sealing plate 4 is arranged in the monitoring pipe 2, the sealing plate 4 is located behind the valve plate 3, the outer wall of the periphery of the sealing plate 4 abuts against the inner wall of the monitoring pipe 2, and the sealing plate 4 is horizontally and slidably connected to the inner wall of the monitoring pipe 2. Wherein the closing plate 4 is close to valve plate 3's one side laminating conflict valve plate 3, and deviates from the horizontal fixedly connected with actuating lever 41 of one end of valve plate 3, and actuating lever 41 deviates from the one end of closing plate 4 and extends to monitoring pipe 2 outside to be used for realizing the horizontal slip control of closing plate 4.

Referring to fig. 3, a support seat 5 is fixed to an upper outer wall of the monitoring pipe 2, and the support seat 5 is located behind the valve rod 31. The supporting seat 5 is horizontally and rotatably connected with a rotating shaft 51, the middle position of the rotating shaft 51 is fixedly connected with a driven gear 52, one side of the valve rod 31 close to the supporting seat 5 is fixedly provided with a driven rack 32 meshed with the driven gear 52, and therefore the valve plate 3 can be controlled to be automatically opened and closed through rotation of the rotating shaft 51.

Referring to fig. 3, a linkage rod 42 is vertically and upwardly arranged at one end of the driving rod 41 located outside the monitoring pipe 2, a pair of active racks 43 is horizontally fixed at the upper end of the linkage rod 42, the pair of active racks 43 are parallel to each other, and the pair of active racks 43 is horizontally located above the monitoring pipe 2. The two ends of the rotating shaft 51 are fixed with the driving gears 53, and the pair of driving racks 43 are located above the pair of driving gears 53 and meshed with the driving gears 53, so that the reciprocating motion of the driving rod 41 is utilized to control the automatic opening and closing of the valve plate 3.

Referring to fig. 3, the ends of the two driving racks 43 departing from the linkage rod 42 are both bent downward to form a guide rod 44, the monitoring tube 2 is provided with a guide groove 22 arranged along the axial direction thereof, the guide rod 44 is slidably connected to the guide groove 22, and the guide groove 22 realizes the limit of the guide rod 44 in the vertical direction.

Referring to fig. 3 and 4, a sliding block 45 is fixedly connected to the lower end of the linkage rod 42, a sliding groove 46 arranged along the length direction of the outer wall of the driving rod 41 is formed in the outer wall of the driving rod 41, and the sliding block 45 is horizontally slidably connected to the sliding groove 46. The sliding groove 46 realizes the limit of the sliding block 45 in the axial direction, and the friction force between the sliding block 45 and the sliding groove 46 is enough to position the sliding block 45.

Referring to fig. 1 and 2, a connecting rod 6 is vertically arranged between ends of the driving rods 41 departing from the sealing plate 4, and each driving rod 41 is fixedly connected to the connecting rod 6. A pull rod 61 is horizontally and fixedly connected to one side of the connecting rod 6, which is far away from the driving rod 41, and the pull rod 61 is located in the middle position of the connecting rod 6. The installation frame 1 is provided with a mounting hole 11 through the horizontal running of one side of deviating from monitoring pipe 2, and pull rod 61 wears to establish mounting hole 11 and horizontal sliding connection in mounting hole 11.

Referring to fig. 1 and 2, an outer wall sleeve of the pull rod 61 is provided with a spring 62, the spring 62 is located between the inner walls of the connecting rod 6 and the mounting frame 1, two ends of the spring 62 are respectively and fixedly connected to the connecting rod 6 and the mounting frame 1, a handle 63 is connected to the pull rod 61 in a rotating mode deviating from the connecting rod 6, a locking mechanism 7 is arranged between the handle 63 and the outer wall of the mounting frame 1, and the locking mechanism 7 is used for fixing the handle 63 and the pull rod 61.

Referring to fig. 1 and 2, the locking mechanism 7 includes a locking rod 71 and a locking ball 72, the locking rod 71 is horizontally and fixedly connected to the handle 63, the locking ball 72 is fixedly connected to an end of the locking rod 71 facing away from the handle 63, and a diameter of the locking ball 72 is larger than a diameter of the locking rod 71. Wherein the outer wall of one side that the mounting hole 11 was seted up to the frame is provided with locking groove 12 and ring channel 13, and locking groove 12 is linked together with ring channel 13 to locking groove 12 supplies locking ball 72 to imbed, and ring channel 13 supplies the embedding after the motion of locking ball 72, has been used for realizing that the locking of handle 63 and pull rod 61 is fixed.

Referring to fig. 1 and 4, the monitoring system further comprises a concentration detector 8, the concentration detector 8 is fixed on the upper end surface of the frame, the concentration detector 8 is connected with a plurality of monitoring probes 81, each monitoring probe 81 is located in a plurality of monitoring pipes 2, the monitoring pipes 2 are embedded in the inner walls of the monitoring pipes 2 and located behind the valve plate 3, and the monitoring pipes 2 are used for detecting the concentration of CO in the monitoring pipes 2.

Referring to fig. 4, a reserved space is left between the monitoring probe 81 and the valve plate 3, namely, when the sealing plate 4 abuts against the valve plate 3, the monitoring probe 81 is located behind the sealing plate 4, when the sealing plate 4 is far away from the valve plate 3, and when the smoke is sucked into the monitoring pipe 2, the sealing plate 4 is located behind the monitoring probe 81, so that the monitoring probe 81 is ensured to monitor the smoke.

The implementation principle of the water-cooled wall high-temperature corrosion monitoring system based on CO real-time monitoring in the embodiment of the application is as follows: when being applied to above-mentioned monitoring system on the boiler, with the vertical boiler outer wall that is fixed in of installation frame 1, make inside a plurality of monitoring pipe 2 intercommunication boilers simultaneously to distribute in the different height position of boiler. Meanwhile, the valve plate 3 is in a closed state and plugs the monitoring tube 2, the sealing plate 4 is attached to the valve plate 3, and the monitoring probe 81 is located at a rear position of the sealing plate 4.

When the CO concentration in the boiler needs to be checked, the handle 63 is turned first to drive the locking rod 71 and the locking ball 72 to move synchronously, and the locking of the handle 63 and the mounting frame 1 is released. Then, the handle 63 is pulled to move the pull rod 61 and the connecting rod 6 synchronously backward, at this time, the connecting rod 6 drives all the driving rods 41 to synchronously move, and the driving rods 41 drive the sealing plate 4 to gradually move away from the valve plate 3.

When the driving rod 41 drives the sealing plate 4 to move away from the valve plate 3, the sliding block 45 and the sliding groove 46 synchronously slide, and at the moment, the position of the sealing plate 4 changes, but the position of the linkage rod 42 does not change, and negative pressure is generated between the sealing plate 4 and the valve plate 3. When the slide block 45 at the lower end of the linkage rod 42 moves to a position where the slide groove 46 is close to one end of the sealing plate 4, the driving rod 41 drives the linkage rod 42 and the driving rack 43 to move synchronously.

Then the driving rack 43 drives the driving gear 53, the rotating shaft 51 and the driven gear 52 to synchronously rotate, and the driven gear 52 drives the driven rack 32 to move upwards at the moment, and controls the valve rod 31 and the valve plate 3 to move upwards, so that the automatic opening control of the monitoring pipe 2 is realized, and meanwhile, the smoke in the boiler is automatically sucked under the action of negative pressure.

Meanwhile, until the valve plate 3 is completely in an opening state, the sealing plate 4 is located behind the monitoring probe 81, and then the monitoring probe 81 can be used for monitoring the CO concentration in the monitoring pipe 2 and feeding back the CO concentration to the concentration monitor, so that the real-time monitoring of the CO concentration in the boiler is realized. The operation steps after the flue gas monitoring is finished are opposite to the steps during the detection, so the description is not repeated.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.