Safety monitoring device for boiler furnace

Abstract

The utility model discloses a boiler furnace safety monitoring device, which relates to the technical field of safety monitoring and comprises a monitoring device main body, a fixing pipe is fixedly arranged on one side of a lens of the monitoring device main body, and heat insulation glass is fixedly arranged on the inner side of the fixing pipe. The outer wall of the end, away from the monitoring device body, of the fixing pipe is fixedly sleeved with an annular pipe, the inner side of the annular pipe communicates with and is fixedly provided with a plurality of air blowing pipes, one ends of the air blowing pipes extend to the inner side of the fixing pipe, and the upper side of the annular pipe communicates with and is fixedly provided with an air inlet pipe. The end, away from the monitoring device body, of the fixing pipe abuts against a shielding plate, a cavity is formed in the upper side of the end, close to the shielding plate, of the fixing pipe, a rotating rod is rotationally arranged in the cavity, and one end of the rotating rod is fixedly connected with one side of the shielding plate. According to the utility model, the monitoring device can be cleaned in real time, and the hearth can be clearly monitored.

Description

Technical Field

[0001] The utility model relates to the technical field of safety monitoring, in particular to a boiler furnace safety monitoring device. Background Art

[0002] During the combustion process of the boiler, power generation companies often need to monitor the combustion conditions in the furnace in real time in order to adjust the operating status of auxiliary equipment such as fuel supply or air supply in time; most of the existing furnace monitoring systems use cameras set at different angles in the furnace, and transmit the images in the furnace to the monitoring room through the cameras and display them on the display screen to facilitate the monitoring personnel to make judgments; the cameras used are not resistant to high temperatures, and a transparent heat-resistant material needs to be installed in front of the lens to ensure that the camera can capture images normally without directly contacting the high temperature; currently, heat-resistant glass is mostly used to achieve this; however, since most of the coal-fired boiler furnaces now burn powdered coal, the dust from the burnt or completely burned coal will adhere to the glass surface, and will slowly coke on the glass surface under the high temperature in the furnace, thereby affecting the transparency of the glass or even making it opaque, and the camera cannot obtain or fully obtain the image of the real combustion conditions in the furnace, which brings troubles to monitoring and operation and affects the normal production.

[0003] Among them, announcement number CN204574104U discloses a furnace monitoring system, which belongs to the field of power generation equipment, including a display device, a camera, a camera mounting frame, a blowing device, and insulating glass; the display device is installed in the monitoring room and connected to the camera; the camera is installed on the camera mounting frame on the furnace wall; the blowing device is installed on the camera mounting frame, including an air inlet pipe, an air outlet pipe, and an air outlet; the air inlet pipe is connected to a compressed air source; there are multiple air outlet pipes, which are evenly distributed around the inner side of the air inlet pipe; the air outlet is arranged on the camera mounting frame and faces the side surface of the insulating glass located inside the furnace; the insulating glass is installed at the end of the camera mounting frame. There are still defects in this technical solution:

[0004] In this technical solution, there is no protective mechanism outside the insulating glass. Therefore, when the blowing device stops unexpectedly or stops actively, the dust in the furnace will still stick to the insulating glass, affecting the monitoring clarity. Therefore, the insulating glass needs to be cleaned before restarting the blowing device each time, which is very inconvenient. Utility Model Content

[0005] In view of the above problems existing in the existing boiler furnace safety monitoring device, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a boiler furnace safety monitoring device, which solves the problem that there is no protective mechanism outside the insulating glass in the furnace monitoring system in the prior art. Therefore, when the blowing device stops unexpectedly or stops actively, the dust in the furnace will still stick to the insulating glass, affecting the monitoring clarity. Therefore, the insulating glass needs to be cleaned each time before restarting the blowing device, which is very inconvenient.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A boiler furnace safety monitoring device comprises a monitoring device body, a fixed tube is fixedly arranged on one side of a lens of the monitoring device body, a heat-insulating glass is fixedly arranged on the inner side of the fixed tube, an annular tube is fixedly sleeved on the outer wall of one end of the fixed tube away from the monitoring device body, a plurality of air blowing pipes are connected and fixedly arranged on the inner side of the annular tube, one end of the plurality of air blowing pipes extends to the inner side of the fixed tube, and an air inlet pipe is connected and fixedly arranged on the upper side of the annular tube;

[0009] A baffle plate is arranged against one end of the fixed tube away from the main body of the monitoring device, a cavity is opened inside the upper side of the end of the fixed tube close to the baffle plate, a rotating rod is rotatably arranged inside the cavity, one end of the rotating rod is fixedly connected to one side of the baffle plate, and a transmission mechanism for driving the rotating rod to rotate is arranged inside the cavity.

[0010] Preferably, the transmission mechanism includes a spur gear and a rack, a transmission rod is rotatably arranged on the lower middle side of the cavity, a first bevel gear is fixedly sleeved on one inner end of the rotating rod, a second bevel gear is fixedly sleeved on the upper end of the transmission rod, the first bevel gear is meshingly connected with the second bevel gear, the spur gear is fixedly sleeved on the middle end of the transmission rod, the rack is meshingly arranged on the rear side of the spur gear, the side wall of the upper blowing pipe is connected and fixedly arranged with a branch pipe, one end of the branch pipe extends to the interior of the cavity and is fixedly connected with a bellows, and the other end of the bellows is fixedly connected to the rack.

[0011] Preferably, the movable sleeve of the rod wall of the rotating rod is provided with a torsion spring, and the two ends of the torsion spring are respectively fixedly connected to the corresponding rotating rod and the inner wall of the cavity.

[0012] Preferably, a square hole is formed at one end of the rack away from the corrugated tube, a square rod is provided inside the square hole for sliding sleeve, and one end of the square rod is fixedly connected to the inner wall of the cavity.

[0013] Preferably, sealant is filled between the annular tube and the fixed tube.

[0014] Preferably, a sealing gasket is fixedly provided on one side of the shielding plate close to the fixed tube.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] According to the utility model, when ventilation is carried out through the air intake pipe, the gas enters the annular pipe and is then blown into the fixed pipe from the multiple air blowing pipes, so that the surface of the heat-insulating glass can be kept clean. At the same time, part of the gas is blown into the bellows from the branch pipe, so that the bellows is stretched, so that the rack moves to drive the spur gear to rotate, that is, drives the transmission rod to rotate, and through the first bevel gear and the second bevel gear, the rotating rod rotates, and then the baffle is rotated and opened, so that normal monitoring work can be carried out. When the gas in the air intake pipe is accidentally or actively disconnected, the torsion spring elastic force causes the rotating rod to rotate, and the rotating rod drives the baffle to rotate until it abuts against the end of the fixed pipe, so that the heat-insulating glass can be shielded and protected, so that the surface of the heat-insulating glass is kept clean when it is used next time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 This is a structural schematic diagram of a boiler furnace safety monitoring device proposed by the utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the internal structure;

[0020] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of part A in the middle.

[0021] Description of reference numerals:

[0022] 1. Monitoring device body; 2. Fixed pipe; 3. Insulating glass; 4. Square rod; 5. Shielding plate; 6. Annular pipe; 7. Inlet pipe; 8. Blowing pipe; 9. Rotating rod; 10. Torsion spring; 11. Transmission rod; 12. First bevel gear; 13. Second bevel gear; 14. Spur gear; 15. Rack; 16. Branch pipe; 17. Bellows. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0024] The utility model embodiment discloses a boiler furnace safety monitoring device.

[0025] Reference Figure 1-Figure 3A boiler furnace safety monitoring device comprises a monitoring device body 1, a fixed tube 2 is fixedly arranged on one side of the lens of the monitoring device body 1, a heat-insulating glass 3 is fixedly arranged on the inner side of the fixed tube 2, an annular tube 6 is fixedly sleeved on the outer wall of one end of the fixed tube 2 away from the monitoring device body 1, a sealant is filled between the annular tube 6 and the fixed tube 2 to improve the sealing between the annular tube 6 and the fixed tube 2, a plurality of air blowing tubes 8 are connected and fixedly arranged on the inner side of the annular tube 6, one end of the plurality of air blowing tubes 8 extends to the inner side of the fixed tube 2, and an air inlet pipe 7 is connected and fixedly arranged on the upper side of the annular tube 6;

[0026] Reference Figure 1-Figure 3 A baffle plate 5 is arranged against one end of the fixed tube 2 away from the monitoring device body 1, and a sealing gasket is fixedly arranged on the side of the baffle plate 5 close to the fixed tube 2 to improve the sealing between the baffle plate 5 and the fixed tube 2. A cavity is opened inside the upper side of one end of the fixed tube 2 close to the baffle plate 5, and a rotating rod 9 is rotatably arranged inside the cavity, and one end of the rotating rod 9 is fixedly connected to one side of the baffle plate 5.

[0027] Reference Figure 1-Figure 3 A transmission mechanism for driving the rotating rod 9 to rotate is arranged inside the cavity, and the transmission mechanism includes a spur gear 14 and a rack 15. A transmission rod 11 is rotatably arranged on the lower side of the middle part of the cavity. A first bevel gear 12 is fixedly sleeved on one end of the inner side of the rotating rod 9, and a second bevel gear 13 is fixedly sleeved on the upper end of the transmission rod 11. The first bevel gear 12 is meshed with the second bevel gear 13. The spur gear 14 is fixedly sleeved on the middle end of the transmission rod 11, and the rack 15 is meshed and arranged on the rear side of the spur gear 14. The side wall of the upper blowing pipe 8 is connected and fixedly provided with a branch pipe 16. One end of the branch pipe 16 extends into the interior of the cavity and is fixedly connected with a bellows 17. The other end of the bellows 17 is fixedly connected to the rack 15. A square hole is opened at one end of the rack 15 away from the bellows 17. A square rod 4 is slidingly sleeved inside the square hole. One end of the square rod 4 is fixedly connected to the inner wall of the cavity, so that the rack 15 can slide stably.

[0028] Reference Figure 1-Figure 3 A torsion spring 10 is provided on the movable sleeve of the rod wall of the rotating rod 9, and the two ends of the torsion spring 10 are fixedly connected to the corresponding rotating rod 9 and the inner wall of the cavity respectively. In a natural state, the elastic force of the torsion spring 10 will cause the rotating rod 9 to drive the baffle plate 5 to rotate until it conflicts with the end of the fixed tube 2.

[0029] In the utility model, when in use, when the air inlet pipe 7 is ventilated, the gas enters the annular tube 6, and then is blown from the multiple air blowing pipes 8 to the fixed tube 2, so that the surface of the heat-insulating glass 3 can be kept clean. At the same time, part of the gas is blown into the bellows 17 from the branch pipe 16, so that the bellows 17 stretches, that is, the rack 15 moves to drive the spur gear 14 to rotate, that is, drives the transmission rod 11 to rotate, and is transmitted through the first bevel gear 12 and the second bevel gear 13, so that the rotating rod 9 rotates, and then the baffle plate 5 is rotated and opened, that is, normal monitoring work can be carried out. When the gas in the air inlet pipe 7 is accidentally or actively disconnected, the elastic force of the torsion spring 10 causes the rotating rod 9 to rotate, and the rotating rod 9 drives the baffle plate 5 to rotate until it is against the end of the fixed tube 2, that is, the heat-insulating glass 3 can be shielded and protected, and the surface of the heat-insulating glass 3 is kept clean when it is used next time.

[0030] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A boiler furnace safety monitoring device, comprising a monitoring device body (1), characterized in that: A fixed tube (2) is fixedly arranged on one side of the lens of the monitoring device body (1), a heat-insulating glass (3) is fixedly arranged on the inner side of the fixed tube (2), an annular tube (6) is fixedly sleeved on the outer wall of one end of the fixed tube (2) away from the monitoring device body (1), a plurality of air blowing tubes (8) are connected and fixedly arranged on the inner side of the annular tube (6), one end of the plurality of air blowing tubes (8) extends to the inner side of the fixed tube (2), and an air inlet tube (7) is connected and fixedly arranged on the upper side of the annular tube (6); A baffle plate (5) is disposed against one end of the fixed tube (2) away from the monitoring device body (1), and a cavity is provided inside the upper side of one end of the fixed tube (2) close to the baffle plate (5). A rotating rod (9) is rotatably disposed inside the cavity, one end of the rotating rod (9) is fixedly connected to one side of the baffle plate (5), and a transmission mechanism for driving the rotating rod (9) to rotate is disposed inside the cavity.

2. The boiler furnace safety monitoring device according to claim 1, characterized in that: The transmission mechanism comprises a spur gear (14) and a rack gear (15). A transmission rod (11) is rotatably arranged at the lower middle part of the cavity. A first bevel gear (12) is fixedly sleeved at one end of the inner side of the rotating rod (9). A second bevel gear (13) is fixedly sleeved at the upper end of the transmission rod (11). The first bevel gear (12) is meshingly connected with the second bevel gear (13). The spur gear (14) is fixedly sleeved at the middle end of the transmission rod (11). The rack gear (15) is meshingly arranged at the rear side of the spur gear (14). A branch pipe (16) is connected to and fixedly arranged on the side wall of the upper blowing pipe (8). One end of the branch pipe (16) extends into the interior of the cavity and is fixedly connected to a bellows (17). The other end of the bellows (17) is fixedly connected to the rack gear (15).

3. The boiler furnace safety monitoring device according to claim 2 is characterized in that: The rod wall of the rotating rod (9) is movably sleeved with a torsion spring (10), and the two ends of the torsion spring (10) are respectively fixedly connected to the corresponding rotating rod (9) and the inner wall of the cavity.

4. The boiler furnace safety monitoring device according to claim 2, characterized in that: A square hole is formed at one end of the rack (15) away from the bellows (17), a square rod (4) is slidably sleeved inside the square hole, and one end of the square rod (4) is fixedly connected to the inner wall of the cavity.

5. The boiler furnace safety monitoring device according to claim 1, characterized in that: The space between the annular tube (6) and the fixed tube (2) is filled with sealant.

6. The boiler furnace safety monitoring device according to claim 1, characterized in that: A sealing gasket is fixedly provided on one side of the shielding plate (5) close to the fixed tube (2).

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