CN213367966U - Endoscopic monitoring system for boiler slag well - Google Patents

Abstract

The utility model discloses an peep formula monitored control system in boiler slag well belongs to slag well and keeps watch on technical field. The utility model discloses a set up in the monitoring unit in the slag shaft outside and with the propelling movement unit, monitoring unit and propelling movement unit are all fixed on the lateral wall of slag shaft lower part through fixed unit, wherein monitor the unit and include the camera, the camera front end is provided with the camera lens, fixed unit is including setting up the mounting base on the slag shaft lateral wall, the through-hole that runs through is all seted up with the corresponding position of lateral wall to the mounting base, be provided with the installation sleeve in the through-hole, the installation sleeve extends to inside the slag shaft, and the camera lens is reciprocating motion along its length direction in the installation sleeve is inside under the drive of propelling movement unit. The utility model aims to overcome and watch the problem of observing the unsharp when the sediment volume falls through sediment well bottom glass window in the prior art inside the sediment well, utilize inside wide angle camera real time monitoring sediment well, the inside sediment condition that falls of sediment well can be monitored at any time to the operating personnel.

Description

Endoscopic monitoring system for boiler slag well

Technical Field

The utility model relates to a slag well monitoring technology field, more specifically say, relate to a peep formula monitored control system in boiler slag well.

Background

When the slag discharge amount of the boiler is large or the slag block is large and the slag squeezing time is not in time, the conveying chain of the slag drying machine is overloaded, a slag discharging system is paralyzed, and hidden dangers are brought to the safe operation of a unit, so that the slag falling condition in the slag well of the boiler needs to be reliably monitored. The existing boiler slag well monitoring means is that a worker directly observes the slag falling amount inside a slag well through a glass window at the bottom of the slag well, and the specific slag falling condition inside the slag well cannot be effectively observed and monitored through the glass window due to the fact that the internal environment of the boiler slag well is severe (high in temperature and much in dust). Therefore, designing a boiler slag well endoscopic monitoring system capable of effectively and reliably monitoring the slag falling condition of the slag well in the slag drying machine is a constantly pursued target in the industry.

Upon retrieval, numerous patents have been published on slag well monitoring, such as patent application nos.: 2010205746580, the name of invention creation is: the application discloses an endoscopic high-temperature industrial television device for a float glass tin bath, which comprises a protective sleeve and a fixed shaft sleeved in the protective sleeve, wherein the side wall of the head part of the protective sleeve is provided with an observation hole, the fixed shaft is provided with a peeping device aligned with the observation hole, and the peeping device is connected with a monitor through a video line; the side wall of the tail part of the protective sleeve is provided with a water inlet, a water outlet and an air inlet. This scheme is through inside the device of peeping into float glass's the molten tin bath with having the protective sheath for can be directly in the molten tin bath big angle of vision monitoring inslot operating mode, the state of drawing the side mark, flange position and molten tin bath limit portion is observed more directly perceivedly, and the various-sided huge effect of tin bath high temperature industry television set in monitoring molten tin bath operating mode, helping to change the board operation, in time discovering and handling molten tin bath accident etc. is being exerted more effectively.

As another example, patent application No.: 91207311X, entitled: the application discloses a net-shaped automatic monitoring device of a slag flowing system, which takes 4 to 5 photosensitive elements as probes, one of the photosensitive elements is used for omnibearing monitoring, the other photosensitive elements are in net-shaped connection, the width of a net can be adjusted by adjusting the angle of the probes, a school table-shaped or square outer sleeve is covered outside the probes, the reflection and absorption of light are facilitated, the photosensitive elements can be used for measuring the size of an object, when a slag well is 'stick-shaped' and 'coked' exceeds the water surface, an automatic alarm can be given, and an indicator lamp is provided when the slag flowing is intermittent, normal, non-slag-flowing or the slag flowing swings.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

The utility model aims to overcome and watch the problem of observing not clearly during the inside sediment volume that falls of sediment well through sediment well bottom glass window among the prior art, provide a peeping formula monitored control system in boiler sediment well, can deepen the sediment well with the camera inside, utilize wide angle camera real time monitoring sediment well inside, the inside sediment condition that falls of sediment well can be monitored at any time to the operating personnel, the crowded sediment door of control number of times of opening and closing, reasonable transport slag has effectively guaranteed the safety and stability operation of dry sediment machine.

2. Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

the utility model discloses an endoscopic monitoring system of boiler slag well, including setting up the monitoring unit in the slag well outside and the propelling movement unit that links to each other with the monitoring unit, monitoring unit and propelling movement unit are all fixed on the lateral wall of slag well lower part through fixed unit, and wherein the monitoring unit includes the camera, and the camera front end is provided with the camera lens, and fixed unit is including setting up the mounting base on the slag well lateral wall, and the through-hole that runs through is all seted up with the corresponding position of lateral wall to the mounting base, is provided with the installation sleeve in the through-hole, and inside the installation sleeve extends to the slag well, and the camera lens is reciprocating motion along its length direction in the installation sleeve is inside under the drive of propelling movement unit.

As a further improvement, one side of the installation base away from the slag well is provided with a cylindrical slag well opening, the slag well opening comprises two doors which are arranged relatively from top to bottom, the upper door and the lower door are respectively hinged with the top wall and the bottom wall, and a reset spring is arranged between the inner side of the upper door and the inner side of the top wall and the bottom wall.

As a further improvement, the push unit includes motor and push rod, and the below of push rod is connected with the monitoring unit, and motor drive push rod drives the camera lens and is reciprocating motion along the length direction of camera lens.

As a further improvement, the propelling movement unit is still established at the casing in the motor and the propelling movement pole outside including the cover, and the position corresponding with the propelling movement pole on the casing is provided with the slide rail along length direction, and the propelling movement pole slides on the slide rail, and the tip that is close to the sediment well on the casing links to each other with the mounting base.

As a further improvement of the utility model, one side of the shell close to the slag well is provided with a limit switch.

As a further improvement, one side of the pushing rod, which is far away from the slag well, is provided with a connecting part, and the connecting part is connected with the upper part of the monitoring unit.

As a further improvement of the utility model, the installation sleeve extends downwards along the direction of one side of the slag well in an inclined way, the included angle between the installation sleeve and the horizontal line is alpha, and the range of the alpha is 10-30 degrees.

As a further improvement, the installation base is vertically arranged, and the top of the installation base is connected with the outer side wall of the slag well.

As a further improvement, the lens and the camera are respectively sleeved with a lens cooling cover and a camera cooling cover.

As a further improvement, the utility model discloses still include the control unit, the control unit includes the electrical control cabinet, and the electrical control cabinet is connected with PLC control module electricity, and PLC control module is connected with the display electricity, and the electrical control cabinet is connected with the motor electricity.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

(1) the utility model discloses an endoscopic monitoring system of boiler slag well, changed original monitoring mode, change original external supervision into endoscopic supervision, utilize wide angle camera lens real time monitoring slag well inside to fall situations such as sediment and dry sediment machine conveying chain operation, can monitor the inside sediment size and the quantity of falling of boiler slag well effectively, mastered the quantity that dry sediment machine conveying chain conveyed the lime-ash, whether there is the existence of big sediment in observing the slag well clearly and intuitively, the operation personnel can rationally control the crowded sediment number of times of crowded sediment door and the cycle of boiler soot blowing, improved boiler deslagging system's reliability and economic nature, avoided deslagging system to transship the condition such as paralysis; meanwhile, the safe and stable operation of the boiler deslagging system is ensured, and the safety of the unit is also ensured.

(2) The utility model discloses an endoscopic monitoring system for a boiler slag well, the slag well mouth comprises two doors which are oppositely arranged up and down, the upper door and the lower door are respectively hinged with a top wall and a bottom wall, and a reset spring is arranged between the inner sides of the upper door and the lower door and the top wall and the bottom wall; when the lens is used, the lens is driven by the pushing unit to move rightwards, the upper door and the lower door from the slag well mouth extrude the reset spring rightwards, the upper door and the lower door from the slag well mouth are forced to rotate inwards to enter the installation sleeve, the lens continues to move until the upper door and the lower door stretch into the slag well to monitor, when the lens exits, the upper door and the lower door from the slag well mouth are automatically closed under the action of the reset spring, the original state is recovered, impurities can be effectively prevented from entering the slag well mouth or the installation sleeve, the lens is prevented from being damaged, and the service life of the lens is ensured.

(3) The utility model discloses an peep formula monitored control system in boiler slag well, one side that is close to the slag well on the casing still is provided with limit switch, stops promptly when the propelling movement pole advances near the limit switch position and moves ahead, avoids the camera lens excessively to stretch into inside the slag well, further protects the camera lens not damaged.

(4) The utility model discloses an peep formula monitored control system in boiler slag well, the both ends of installation sleeve are the opening design, and the installation sleeve is along inclining downwardly extending towards slag well one side direction, can fall the lime-ash that the camera lens cooling jacket brought into under the effect of gravity inside the automatic slag well that falls back, have effectively alleviateed the inside lime-ash accumulation condition of installation sleeve.

Drawings

Fig. 1 is a schematic structural diagram of a monitoring system of an endoscopic monitoring system for a boiler slag well, to which the present invention is applied;

FIG. 2 is a schematic view of the structure of the connecting pipeline of the cooling unit of the present invention;

fig. 3 is a schematic structural view of the middle mounting sleeve of the present invention.

The reference numerals in the schematic drawings illustrate:

100. a monitoring unit; 110. a lens; 111. a lens cooling cover; 120. a camera; 121. a camera cooling cover;

200. a pushing unit; 210. a connecting portion; 220. a motor; 230. a push rod; 240. a limit switch;

300. a cooling unit; 310. a compressed air main; 311. a control master valve; 320. a gas storage pressure stabilizing tank; 330. a filter; 340. A cooling air inlet pipe; 341. an inlet pressure gauge; 350. an electrical control cabinet; 360. a slag wellhead cooling air pipe; 361. a slag wellhead cooling air valve; 370. an interlayer cooling air pipe; 371. a filtering pressure reducing valve; 372. a lens cooling air pipe; 301. a lens cooling valve; 373. cooling the air pipe by the camera; 302. a camera cooling valve;

400. a fixing unit; 410. mounting a base; 420. installing a sleeve; 430. a slag wellhead; 440. a return spring;

500. a slag well; 510. a side wall; 520. a slag drying machine;

600. a control unit; 610. a PLC control module; 620. a display.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings.

The present invention will be further described with reference to the following examples.

Example 1

The endoscopic monitoring system for the boiler slag well changes the original monitoring mode into the endoscopic monitoring mode, the original monitoring mode is that a camera is arranged at the bottom of the slag well 500 outside a glass window for monitoring, the internal condition of the slag well 500 cannot be clearly seen, and the slag falling condition in the slag well 500 can be clearly and intuitively monitored by installing the endoscopic monitoring system for the boiler slag well. Referring to fig. 1-3, the endoscopic monitoring system for a boiler slag well of the present embodiment includes a monitoring unit 100 disposed outside a slag well 500 and a pushing unit 200 connected to the monitoring unit 100, as shown in fig. 2, in the present embodiment, the monitoring unit 100 and the pushing unit 200 are both fixed on an outer sidewall 510 of a lower portion of the slag well 500 through a fixing unit 400, wherein the monitoring unit 100 includes a camera 120, a lens 110 is disposed at a front end of the camera 120, and a lens cooling cover 111 and a camera cooling cover 121 are respectively sleeved outside the lens 110 and the camera 120 for protecting the lens 110 and the camera 120 from high temperature and erosion of ash, so as to improve service lives of the lens 110 and the camera 120.

In this embodiment, the fixing unit 400 includes a mounting base 410 disposed on the outer sidewall 510 of the slag well 500, through holes penetrating the thickness of the mounting base 410 are formed at positions corresponding to the sidewalls 510, a mounting sleeve 420 is disposed in the through holes, the mounting sleeve 420 extends into the slag well 500, and the lens 110 is driven by the pushing unit 200 to reciprocate along the length direction of the mounting sleeve 420. Specifically, as shown in fig. 3, in the present embodiment, the outer sidewall 510 of the slag well 500 is obliquely arranged, one side of the mounting base 410, which is close to the slag well 500, is provided with the mounting sleeve 420, the mounting sleeve 420 and the mounting base 410 are integrally designed, the mounting sleeve 420 is welded and fixed on the outer sidewall 510 of the slag well 500, and the mounting base 410 is vertically arranged, and the top of the mounting base 410 is connected with the outer sidewall 510 of the slag well 500, so that the connection stability of the fixing unit 400 is ensured, further, the mounting stability of the monitoring unit 100 and the pushing unit 200 is ensured, and the use stability of the whole monitoring system is improved.

As shown in fig. 2, the mounting sleeve 420 extends beyond the sidewall 510 of the slag well 500, the mounting sleeve 420 provides a safe and stable operation channel for the lens 110, and the wide-angle lens 110 is used to monitor the conditions of slag falling inside the slag well 500, the operation of the slag dryer conveyor chain 520, and the like in real time. The endoscopic monitoring system of the embodiment can effectively monitor the size and the quantity of the slag falling in the boiler slag well 500, master the quantity of the slag conveyed by the slag dryer conveying chain 520, clearly and visually observe whether large slag exists in the slag well 500, and operators can reasonably control the slag squeezing times of a slag squeezing door and the soot blowing period of a boiler, thereby improving the reliability and the economy of a boiler slag discharging system, and avoiding the conditions of overload paralysis and the like of the slag discharging system; meanwhile, the safe and stable operation of the boiler deslagging system is ensured, and the safety of the unit is also ensured. As shown in fig. 3, both ends of the mounting sleeve 420 in this embodiment are both open designs, and the mounting sleeve 420 extends obliquely and downwardly along one side of the slag well 500, so that ash brought in by the lens cooling cover 111 can automatically fall back into the slag well 500 under the action of gravity, thereby effectively reducing the ash accumulation condition in the mounting sleeve 420. The angle between the mounting sleeve 420 and the horizontal is now alpha, which is in the range of 10-30 deg.. Specifically, α in the present embodiment is 10 °.

In this embodiment, one side of the mounting base 410, which is far away from the slag well 500, is provided with a cylindrical slag well opening 430, as shown in the orientation of fig. 2, the left side of the mounting base 410, which is close to the lens 110, is provided with the slag well opening 430, the position of the slag well opening 430 corresponds to the position of the mounting sleeve 420, and when the mounting base is used, the lens 110 can enter the mounting sleeve 420 through the slag well opening 430, and then the slag falling condition at the bottom of the slag well 500 is monitored by extending into the slag well 500. In this embodiment, the slag wellhead 430 comprises two doors which are oppositely arranged up and down, the upper door and the lower door are respectively hinged with the top wall and the bottom wall, namely, the door on the upper part of the slag wellhead 430 is hinged with the top wall, the door on the lower part of the slag wellhead 430 is hinged with the bottom wall, and a return spring 440 is arranged between the inner side of the upper door and the inner side of the lower door and the top wall and the bottom wall. When the lens 110 is used, the lens 110 is driven by the pushing unit 200 to move rightwards, the upper door and the lower door of the slag well head 430 extrude the reset spring 440 rightwards, the upper door and the lower door of the slag well head 430 are forced to rotate inwards to enter the installation sleeve 420, the lens 110 continues to move until the lens extends into the slag well 500 for monitoring, when the lens 110 exits, the upper door and the lower door of the slag well head 430 are automatically closed under the action of the reset spring 440 to recover the original state, impurities can be effectively prevented from entering the slag well head 430 or the installation sleeve 420, damage to the lens 110 is avoided, and the service life of the lens 110 is ensured.

As shown in fig. 2, the cooling unit 300 is further included in this embodiment, and the cooling unit 300 includes a compressed air manifold 310, and the compressed air manifold 310 is connected to an air compressor room in the plant, and is capable of providing clean and dry compressed air for the system. The compressed air header pipe 310 is communicated with the interlayer cooling air pipe 370, the interlayer cooling air pipe 370 is respectively connected with the lens cooling cover 111 and the camera cooling cover 121 through the lens cooling air pipe 372 and the camera cooling air pipe 373, compressed air is respectively introduced into the lens cooling cover 111 and the camera cooling cover 121 to continuously blow and sweep the lens 110 and the camera 120, the lens 110 and the camera 120 are cooled, the service lives of the lens 110 and the camera 120 are prolonged, wherein the front end of the lens cooling cover 111 is a window made of transparent materials, and the monitoring effect of the lens 110 entering the slag well 500 is not influenced. Specifically, in this embodiment, the lens cooling air duct 372 is disposed at the front end of the lens 110 close to the camera 120, and does not hinder the normal movement of the lens 110, and the compressed air in the lens cooling air duct 372 is blown to the lens 110 inside through the air outlet hole at the front end of the lens cooling cover 111, so as to blow away the heat carried by the lens 110 from the inside of the slag well 500 for cooling. In this embodiment, the lens cooling air duct 372 is provided with the lens cooling valve 301, and the camera cooling air duct 373 is provided with the camera cooling valve 302, so that the flow of compressed air entering the lens cooling hood 111 and the camera cooling hood 121 can be adjusted, and the on-off of the lens cooling air duct 372 and the camera cooling air duct 373 can be controlled.

Example 2

The structure of the endoscopic monitoring system for a boiler slag well in this embodiment is substantially the same as that of embodiment 1, and further, as shown in fig. 1, in this embodiment, the cooling unit 300 further includes an air storage surge tank 320 connected to the compressed air main pipe 310, the air storage surge tank 320 can perform the functions of storing and stabilizing pressure, and can ensure the normal operation of the cooling unit 300 when the compressed air source fails, and the compressed air main pipe 310 is further provided with a control main valve 311 for controlling the on/off of an inlet pipe of the air storage surge tank 320. The air storage pressure stabilizing tank 320 is connected with the filter 330 through a pipeline, the filter 330 can further purify the compressed air, the filter 330 is connected with the electric control cabinet 350 through a pipeline, and an outlet of the electric control cabinet 350 is provided with an interlayer cooling air pipe 370. The interlayer cooling air pipe 370 is provided with a filtering pressure reducing valve 371, and the filtering pressure reducing valve 371 can further filter and reduce pressure of the compressed air entering the lens cooling cover 111 and the camera cooling cover 121, so as to further protect the lens 110 and the camera 120; be provided with inlet pressure table 341 on the cooling air import pipe 340, can implement the control to the pressure of compressed air in the cooling air import pipe 340 and measure, when compressed air pressure is low, can withdraw from camera lens 110 in time, avoid because compressed air pressure and flow are not enough to cause camera lens 110 and camera 120 to damage.

In this embodiment, a slag wellhead cooling air pipe 360 is further arranged at the outlet of the electrical control cabinet 350, the slag wellhead cooling air pipe 360 is communicated with the slag wellhead 430, and a slag wellhead cooling air valve 361 is arranged on the slag wellhead cooling air pipe 360, that is, compressed air at the outlet of the electrical control cabinet 350 is divided into two paths, and one path of compressed air is sent into the lens cooling cover 111 and the camera cooling cover 121 to cool the lens 110 and the camera 120; the other path of compressed air is sent to the slag well head 430, an air curtain is formed at the slag well head 430, flame in the slag well 500 is prevented from being sprayed out, and heat radiation can be effectively reduced. Compressed air in the slag wellhead cooling air pipe 360 is blown to the lens 110 inside through the air outlet hole at the bottom of the slag wellhead 430, so that pulverized coal or dust in the slag wellhead 500 can be effectively prevented from entering and adhering to the outer side of the lens cooling cover 111, and the monitoring image quality of the lens 110 is influenced.

In this embodiment, the installation sleeve 420 extends obliquely downward in a direction toward one side of the slag well 500, and an included angle between the installation sleeve 420 and a horizontal line is α, where α ranges from 10 ° to 30 °. Specifically, α in the present embodiment is 20 °.

Example 3

The structure of the endoscopic monitoring system for a boiler slag well of the present embodiment is substantially the same as that of embodiment 1, and further, as shown in fig. 1, the pushing unit 200 of the present embodiment includes a motor 220 and a pushing rod 230, the monitoring unit 100 is connected to a lower portion of the pushing rod 230, specifically, a connecting portion 210 is provided on a side of the pushing rod 230 away from the slag well 500, and the connecting portion 210 is connected to an upper portion of the monitoring unit 100. The motor 220 drives the pushing rod 230 to drive the lens 110 to reciprocate along the length direction of the lens 110. In this embodiment, the pushing unit 200 further includes a housing covering the outer sides of the motor 220 and the pushing rod 230, a sliding rail is disposed on the housing at a position corresponding to the pushing rod 230 along the length direction, and the pushing rod 230 slides on the sliding rail and drives the monitoring unit 100 below to perform a reciprocating motion integrally, so as to push the lens 110 into or withdraw from the slag well 500. The end of the housing near the slag well 500 is connected to the mounting base 410, and specifically, the housing and the mounting base 410 are fixed by welding in this embodiment. In this embodiment, a limit switch 240 is further disposed on one side of the housing close to the slag well 500, and when the push rod 230 moves to a position near the limit switch 240, the pushing rod stops moving forward, so as to prevent the lens 110 from excessively extending into the slag well 500, and further protect the lens 110 from being damaged.

In this embodiment, the installation sleeve 420 extends obliquely downward in a direction toward one side of the slag well 500, and an included angle between the installation sleeve 420 and a horizontal line is α, where α ranges from 10 ° to 30 °. Specifically, α in the present embodiment is 30 °.

Example 4

The endoscopic monitoring system for a boiler slag well according to the present embodiment has a structure substantially the same as that of embodiment 1, and further, as shown in fig. 1, the endoscopic monitoring system further includes a control unit 600, the control unit 600 includes an electrical control cabinet 350, the electrical control cabinet 350 is electrically connected to a PLC control module 610, the PLC control module 610 is electrically connected to a display 620, and the electrical control cabinet 350 is electrically connected to the motor 220. When the slag drying machine is used, the color camera 120 and the high-temperature pinhole lens 110 are respectively installed in the lens cooling cover 111 and the camera cooling cover 121, the lens 110 extends into the slag well 500 under the coating of the lens cooling cover 111, the camera 120 shoots images of slag at the bottom of the slag well 500 through the pinhole lens 110 to form full-television signals which are transmitted to the PLC control module 610, the full-television signals are transmitted to the color display 620 in the monitoring room of an operator or a whole-plant industrial television through the PLC control module 610, double signal output is realized, the monitoring safety is guaranteed, meanwhile, the operator monitors the slag falling condition in the slag well 500 through the color display 620 in the monitoring room of the operator at any time, the times of opening and closing of the slag squeezing door is controlled, slag is reasonably conveyed, and the slag drying machine is guaranteed to run safely and stably.

The endoscopic monitoring system of the embodiment has a protection exit function, and can effectively prevent the lens 110 from being damaged by high temperature, when the compressed air delivered by the cooling air inlet pipe 340 is lower than a specified value, the inlet pressure gauge 341 in the control unit 600 feeds back the information of insufficient pressure to the PLC control module 610, the PLC control module 610 outputs an exit signal, the control unit 600 controls the motor 220 to be started, and the lens 110 is exited to the outside of the slag well 500, so that the lens 110 and the camera 120 are prevented from being damaged by overhigh temperature. Meanwhile, temperature measuring points are also arranged in the lens cooling cover 111 and the camera cooling cover 121, when the internal temperatures of the lens cooling cover 111 and the camera cooling cover 121 are too high, the temperature measuring points feed back signals to the PLC control module 610, the PLC control module 610 outputs exit signals, the control unit 600 controls the motor 220 to be started, the lens 110 is exited to the outside of the slag well 500, the lens 110 and the camera 120 are further protected from being damaged, and the service life of the whole device is prolonged.

The camera cooling jacket 121 in this embodiment is further provided with a heat insulating layer on the outer side, so that sound insulation treatment can be performed on the high-temperature industrial television, cooling air blowing sound of the high-temperature industrial television is successfully blocked, and the monitoring effect is ensured.

Claims (10)

1. An endoscopic monitoring system for a boiler slag well, characterized in that: including setting up monitoring unit (100) in slag shaft (500) outside and the push unit (200) that link to each other with monitoring unit (100), monitoring unit (100) and push unit (200) are all fixed on lateral wall (510) of slag shaft (500) lower part through fixed unit (400), wherein monitoring unit (100) include camera (120), camera (120) front end is provided with camera lens (110), fixed unit (400) are including setting up mounting base (410) on slag shaft (500) lateral wall (510), the through-hole that runs through is all seted up in mounting base (410) and lateral wall (510) corresponding position, be provided with installation sleeve (420) in the through-hole, installation sleeve (420) extend to inside slag shaft (500), and camera lens (110) are reciprocating motion along its length direction inside installation sleeve (420) under the drive of push unit (200).

2. The endoscopic monitoring system for the slag well of a boiler according to claim 1, wherein: one side of the installation base (410) far away from the slag well (500) is provided with a cylindrical slag well head (430), the slag well head (430) comprises two doors which are oppositely arranged up and down, the upper door and the lower door are respectively hinged with the top wall and the bottom wall, and a reset spring (440) is further arranged between the inner sides of the upper door and the lower door and the top wall and the bottom wall.

3. The endoscopic monitoring system for the slag well of a boiler according to claim 1, wherein: the pushing unit (200) comprises a motor (220) and a pushing rod (230), the monitoring unit (100) is connected below the pushing rod (230), and the motor (220) drives the pushing rod (230) to drive the lens (110) to reciprocate along the length direction of the lens (110).

4. The endoscopic monitoring system for a boiler slag well according to claim 3, characterized in that: the pushing unit (200) further comprises a shell which covers the outer sides of the motor (220) and the pushing rod (230), a sliding rail is arranged on the shell at a position corresponding to the pushing rod (230) along the length direction, the pushing rod (230) slides on the sliding rail, and the end part, close to the slag well (500), of the shell is connected with the mounting base (410).

5. The endoscopic monitoring system for the slag well of a boiler according to claim 4, wherein: and a limit switch (240) is also arranged on one side of the shell close to the slag well (500).

6. The endoscopic monitoring system for the slag well of a boiler according to claim 5, wherein: a connecting part (210) is arranged on one side of the pushing rod (230) far away from the slag well (500), and the connecting part (210) is connected with the upper part of the monitoring unit (100).

7. The endoscopic boiler slag well monitoring system according to any one of claims 1-6, wherein: the installation sleeve (420) extends downwards in an inclined mode along the direction towards one side of the slag well (500), and the included angle between the installation sleeve (420) and the horizontal line is alpha, wherein alpha ranges from 10 degrees to 30 degrees.

8. The endoscopic monitoring system for a boiler slag well according to claim 7, wherein: the mounting base (410) is vertically arranged, and the top of the mounting base (410) is connected with the outer side wall (510) of the slag well (500).

9. The endoscopic monitoring system for the slag well of a boiler according to claim 1, wherein: the outer sides of the lens (110) and the camera (120) are respectively sleeved with a lens cooling cover (111) and a camera cooling cover (121).

10. The endoscopic monitoring system for the slag well of a boiler according to claim 1, wherein: still include the control unit (600), the control unit (600) includes electrical control cabinet (350), and electrical control cabinet (350) is connected with PLC control module (610) electricity, and PLC control module (610) is connected with display (620) electricity, and electrical control cabinet (350) is connected with motor (220) electricity.

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