Analyzing and monitoring device for boiler combustion

Abstract

The utility model relates to the technical field of boiler monitoring devices, and discloses an analyzing and monitoring device for boiler combustion, which comprises a monitoring box, an oxygen sensor and a temperature sensor, avoiding grooves are formed in the side walls of the two sides of the protection barrel, the end space of the protection barrel communicates with the use environment space through the avoiding grooves, and filter screens are embedded in the avoiding grooves. After waste gas generated after boiler combustion is guided into the monitoring box, the oxygen sensor and the temperature sensor are used for monitoring the oxygen content and the temperature of the waste gas, data support is provided for analysis of background equipment, solid particles existing in the waste gas can be filtered and isolated by the filter screens at the two ends of the protective cylinder, and the waste gas is prevented from being polluted. The oxygen sensor and the temperature sensor are protected, the service life of the oxygen sensor and the temperature sensor is fully prolonged, and the problems existing in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler monitoring devices, in particular to an analysis and monitoring device for boiler combustion. Background Art

[0002] A boiler is an energy conversion device. The energy input into the boiler includes chemical energy and electrical energy in the fuel. The boiler outputs steam, high-temperature water or organic heat carrier with a certain amount of thermal energy. More specifically, the hot water or steam generated in the boiler can directly provide the required thermal energy for industrial production and people's lives, or it can be converted into mechanical energy through a steam power device, or the mechanical energy can be converted into electrical energy through a generator. Therefore, it has a wide range of uses.

[0003] In recent years, with the further development of boiler-related technologies, researchers in related industries have paid special attention to the combustion efficiency of boilers and have developed relevant analysis and detection devices for this purpose. For example, the patent document with application number CN202020611913.8 discloses "a boiler combustion analysis and monitoring device, comprising a boiler, the left side of the boiler is connected to a transport pipe, the left end of the transport pipe and the left side of the boiler is fixedly connected to an ignition air box, the left side of the ignition air box is connected to an air intake pipe, the bottom of the inner cavity of the ignition air box is fixedly connected to an ignition device, the right side of the boiler is connected to a No. 1 gas pipe, and the No. A monitoring box is fixedly connected to the right end of the gas pipe and located on the right side of the boiler. After use, the exhaust gas after combustion of the boiler is transmitted to the monitoring box through the No. 1 gas pipe and discharged into the monitoring inner box by the No. 1 gas pipe. The oxygen sensor cooperates with the temperature sensor to monitor and analyze the temperature and oxygen content of the exhaust gas in the monitoring inner box. However, in the actual operation process of the applicant, some solid particulate waste will remain in the exhaust gas after combustion of the boiler. If the above-mentioned prior art makes the exhaust gas directly contact with the monitoring component, the detection structure can be obtained in the initial stage, but as the use time increases, the monitoring component will have a certain probability of error or failure, which is not conducive to the sustainable use of the overall device. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an analysis and monitoring device for boiler combustion, which solves the problems raised by the above-mentioned background technology.

[0005] The utility model provides the following technical solution: an analysis and monitoring device for boiler combustion, comprising a monitoring box, an oxygen sensor, and a temperature sensor, wherein a protective tube is sheathed inside the monitoring box, and side walls on both sides of the protective tube are provided with recesses, and the space at the end of the protective tube is communicated with the use environment space through the recesses, and filter screens are nested inside the recesses;

[0006] The oxygen sensor and the temperature sensor are respectively sleeved inside the two ends of the protective tube, and the detection end of the oxygen sensor and the detection end of the temperature sensor are respectively extended into the end space at the two ends of the protective tube.

[0007] Preferably, a step groove and a threaded hole are provided on the top of the monitoring box, the threaded hole is communicated with the space of the step groove, the top of the protective tube is fixedly connected with a transition rod, and the top of the transition rod is fixedly connected with a connecting plate clamped in the step groove.

[0008] Preferably, the connecting plate is threadedly connected to the threaded hole by screws so as to be detachably mounted on the monitoring box.

[0009] The top surface of the connecting plate is preferably coplanar with the top surface of the monitoring box to avoid structural interference, and a sealing ring is fixedly sleeved on the surface of the connecting plate to improve the sealing effect of the connection between the connecting plate and the monitoring box.

[0010] Preferably, flange pipes are fixedly connected to both sides of the monitoring box, and both sides of the monitoring box are conical tubular structures.

[0011] The inner side of the middle part of the protective cylinder is sleeved with a brake stepper motor, and the top of the protective cylinder is provided with a first transmission gear, two slide rails and two spur gear plates respectively clamped on the two slide rails, and the bottoms of the two slide rails are fixedly connected to the surface of the top of the protective cylinder, one end of the two spur gear plates are respectively meshed and connected with the front and rear ends of the first transmission gear, and the output end of the brake stepper motor is sleeved with the top structure of the protective cylinder through a bearing and is connected with the transmission in the middle part of the first transmission gear, so as to meet the requirements of automated mobile operation of subsequent related structures.

[0012] The surfaces of the filters on both ends of the protective tube are fitted with cleaning curved rods, and the end faces of both ends of the protective tube are installed with bevel gear boxes, the output end of the bevel gear box is transmission-connected to one end of the cleaning curved rod, the input end of the bevel gear box is transmission-connected to a second transmission gear that can be meshed with a corresponding spur plate, the cleaning curved rod can rotate synchronously with the second transmission gear and the bevel gear box after receiving the kinetic energy output by the spur plate and the first transmission gear to clean the surface of the filter.

[0013] Preferably, there is a clearance space between the bevel gear box and the end faces corresponding to the protective tube, and the cleaning curved rod can reciprocate and clean the corresponding filter screen under the transmission of the bevel gear box, thereby maintaining the filtering effect of the filter screen for a long time.

[0014] Preferably, a support frame is fixedly connected between the shell surface of the bevel gear box and the end surface corresponding to the protective tube.

[0015] Preferably, the length value of the stepped groove is greater than the total length value of the protective cylinder and the two bevel gear boxes, and there is a clearance space between the inner wall of the monitoring box and the end of the straight tooth plate that is fully extended and moved, meeting the subsequent disassembly and maintenance requirements.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. After the waste gas after boiler combustion is guided into the interior of the monitoring box, the oxygen sensor and the temperature sensor monitor the oxygen content and temperature of the waste gas, providing data support for the analysis of the background equipment. For the solid particles existing in the waste gas, they will be filtered and isolated by the filter meshes at both ends of the protective cylinder, protecting the oxygen sensor and the temperature sensor, and fully extending the service life of the oxygen sensor and the temperature sensor, solving the problems existing in the prior art.

[0018] 2. The utility model drives the first transmission gear to rotate synchronously through the set brake stepping motor, and then the first transmission gear drives the two second transmission gears to mesh and transmit power through the two straight tooth plates, delivering power to the two bevel gear boxes. Finally, the output ends of the bevel gear boxes drive their respective corresponding cleaning curved rods to automatically clean the filter meshes at both ends of the protective cylinder, maintaining the filtering and protecting effect of the filter meshes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a front view schematic diagram of the protective cylinder of the structure of the utility model;

[0020] Figure 2 is a sectional view schematic diagram of the protective cylinder of the structure of the utility model;

[0021] Figure 3 is a front view schematic diagram of the structure of the utility model;

[0022] Figure 4 is a partial enlarged schematic diagram of the straight tooth plate of the structure of the utility model;

[0023] Figure 5 is an enlarged schematic diagram of the bevel gear box of the structure of the utility model.

[0024] In the figure: 1. Monitoring box; 2. Oxygen sensor; 3. Temperature sensor; 4. Protective cylinder; 5. Brake stepping motor; 6. First transmission gear; 7. Straight tooth plate; 8. Filter mesh; 9. Second transmission gear; 10. Bevel gear box; 11. Cleaning curved rod; 12. Connecting plate; 13. Transition rod; 14. Slide rail. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figures 1-5 , an analysis and monitoring device for boiler combustion, comprising a monitoring box 1, an oxygen sensor 2, and a temperature sensor 3. A protective tube 4 is mounted inside the monitoring box 1. The side walls on both sides of the protective tube 4 are provided with clearance grooves, and the end space of the protective tube 4 is communicated with the use environment space through the clearance grooves. Filters 8 are nested inside the clearance grooves. The oxygen sensor 2 and the temperature sensor 3 are respectively mounted inside the two ends of the protective tube 4, and the detection ends of the oxygen sensor 2 and the temperature sensor 3 extend into the end spaces at the two ends of the protective tube 4 respectively.

[0027] A step groove and a threaded hole are provided on the top of the monitoring box 1, and the space of the threaded hole and the step groove is communicated. A transition rod 13 is fixedly connected to the top of the protective tube 4, and a connecting plate 12 which is clamped in the step groove is fixedly connected to the top of the transition rod 13. The connecting plate 12 is threadedly connected to the threaded hole by screws to be detachably installed with the monitoring box 1. The top surface of the connecting plate 12 is coplanar with the top surface of the monitoring box 1 to avoid structural interference, and a sealing ring is fixedly sleeved on the surface of the connecting plate 12 to improve the sealing effect of the connection between the connecting plate 12 and the monitoring box 1. Flange pipes are fixedly connected to both sides of the monitoring box 1, and both sides of the monitoring box 1 are conical tubular structures;

[0028] The inner side of the middle part of the protective cylinder 4 is sleeved with a brake stepper motor 5, and the top of the protective cylinder 4 is provided with a first transmission gear 6, two slide rails 14 and two spur plates 7 respectively clamped on the two slide rails 14, and the bottoms of the two slide rails 14 are fixedly connected to the surface of the top of the protective cylinder 4, one end of the two spur plates 7 is respectively meshed with the front and rear ends of the first transmission gear 6, and the output end of the brake stepper motor 5 is sleeved with the top structure of the protective cylinder 4 through a bearing and is connected to the transmission of the middle part of the first transmission gear 6, so as to meet the requirements of the automated mobile operation of the subsequent related structures;

[0029] The surfaces of the filter screen 8 on both ends of the protective tube 4 are fitted with cleaning curved rods 11, and the end surfaces of both ends of the protective tube 4 are installed with bevel gear boxes 10, the output end of the bevel gear box 10 is transmission-connected with one end of the cleaning curved rod 11, and the input end of the bevel gear box 10 is transmission-connected with the second transmission gear 9 that can be meshed with the corresponding spur plate 7, and the cleaning curved rod 11 can rotate synchronously with the second transmission gear 9 and the bevel gear box 10 after receiving the kinetic energy output by the spur plate 7 and the first transmission gear 6 to clean the surface of the filter screen 8;

[0030] There is a clearance space between the bevel gear box 10 and the corresponding end face of the protective cylinder 4, and the cleaning curved rod 11 can reciprocate and clean the corresponding filter screen 8 under the transmission of the bevel gear box 10, so as to maintain the long-term filtering effect of the filter screen 8. A support frame is fixedly connected between the shell surface of the bevel gear box 10 and the corresponding end face of the protective cylinder 4. The length of the step groove is greater than the total length of the protective cylinder 4 and the two bevel gear boxes 10, and there is a clearance space between the inner wall of the monitoring box 1 and the end of the fully extended and moved straight tooth plate 7, so as to meet the subsequent disassembly and maintenance requirements.

[0031] Working principle:

[0032] Embodiment 1

[0033] After the exhaust gas after boiler combustion is guided to the inside of the monitoring box 1, the oxygen sensor 2 and the temperature sensor 3 will synchronously detect the oxygen content and temperature of the exhaust gas. During the detection process of the oxygen sensor 2 and the temperature sensor 3, the solid particles in the exhaust gas will be filtered and isolated by the filter mesh 8 at both ends of the protective tube 4, thereby protecting the oxygen sensor 2 and the temperature sensor 3 and fully extending the service life of the oxygen sensor 2 and the temperature sensor 3.

[0034] Embodiment 1

[0035] After the exhaust gas after the boiler combustion is guided to the inside of the monitoring box 1, the oxygen sensor 2 and the temperature sensor 3 will synchronously detect the oxygen content and temperature of the exhaust gas. During the detection process of the oxygen sensor 2 and the temperature sensor 3, the solid particles in the exhaust gas will be filtered and isolated by the filter screens 8 at both ends of the protective tube 4, thereby protecting the oxygen sensor 2 and the temperature sensor 3 and fully extending the service life of the oxygen sensor 2 and the temperature sensor 3.

[0036] After the entire device has been used for a certain period of time, the brake stepper motor 5 can be started, and the brake stepper motor 5 can drive the first transmission gear 6 to rotate synchronously, and then the first transmission gear 6 is engaged and transmitted to the two second transmission gears 9 through the two spur plates 7, so as to transmit power to the two bevel gear boxes 10, and finally the output ends of the bevel gear boxes 10 drive the corresponding cleaning curved rods 11 to automatically clean the filter screens 8 on the two ends of the protective tube 4, so as to maintain the filtering and protection effect of the filter screens 8.

[0037] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. At the same time, in the drawings of the present utility model, the filling patterns are only for differentiating the layers and are not subject to any other limitations.

[0038] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An analysis and monitoring device for boiler combustion, comprising a monitoring box (1), an oxygen sensor (2), and a temperature sensor (3), characterized in that: The monitoring box (1) is internally provided with a protective tube (4), and the side walls on both sides of the protective tube (4) are provided with clearance grooves, and the end space of the protective tube (4) is communicated with the use environment space through the clearance grooves, and the interiors of the clearance grooves are each embedded with a filter screen (8); The oxygen sensor (2) and the temperature sensor (3) are respectively sleeved inside the two ends of the protective tube (4), and the detection end of the oxygen sensor (2) and the detection end of the temperature sensor (3) respectively extend into the end space at the two ends of the protective tube (4).

2. The analysis and monitoring device for boiler combustion according to claim 1, characterized in that: The top of the monitoring box (1) is provided with a step groove and a threaded hole, the threaded hole is in communication with the space in the step groove, the top of the protective tube (4) is fixedly connected with a transition rod (13), and the top of the transition rod (13) is fixedly connected with a connecting plate (12) clamped in the step groove.

3. The analysis and monitoring device for boiler combustion according to claim 2, characterized in that: The connection plate (12) is threadedly connected to the threaded hole via screws so as to be detachably mounted on the monitoring box (1).

4. The analysis and monitoring device for boiler combustion according to claim 2, characterized in that: The top surface of the connecting plate (12) is arranged coplanar with the top surface of the monitoring box (1), and a sealing ring is fixedly sleeved on the surface of the connecting plate (12).

5. The analysis and monitoring device for boiler combustion according to claim 1, characterized in that: Both sides of the monitoring box (1) are fixedly connected with flange pipes, and both sides of the monitoring box (1) are conical tubular structures.

6. The analysis and monitoring device for boiler combustion according to claim 1, characterized in that: The inner side of the middle part of the protective tube (4) is sleeved with a brake stepper motor (5), and the top of the protective tube (4) is provided with a first transmission gear (6), two slide rails (14) and two spur gear plates (7) respectively clamped on the two slide rails (14), and the bottoms of the two slide rails (14) are fixedly connected to the surface of the top of the protective tube (4), one end of the two spur gear plates (7) is respectively meshed with the front and rear ends of the first transmission gear (6), and the output end of the brake stepper motor (5) is sleeved with the top structure of the protective tube (4) through a bearing and is connected to the transmission of the middle part of the first transmission gear (6).

7. An analysis and monitoring device for boiler combustion according to claim 6, characterized in that: The surfaces of the filter screens (8) at both ends of the protective tube (4) are fitted with cleaning curved rods (11), and the end faces of both ends of the protective tube (4) are installed with bevel gear boxes (10), the output end of the bevel gear box (10) is transmission-connected to one end of the cleaning curved rod (11), and the input end of the bevel gear box (10) is transmission-connected to a second transmission gear (9) that can mesh with a corresponding spur plate (7).

8. An analysis and monitoring device for boiler combustion according to claim 7, characterized in that: There is a clearance space between the bevel gear box (10) and the corresponding end faces of the protective tube (4), and the cleaning curved rod (11) can reciprocate and clean the corresponding filter screen (8) under the drive of the bevel gear box (10).

9. The analysis and monitoring device for boiler combustion according to claim 7, wherein: A support frame is fixedly connected between the shell surface of the bevel gear box (10) and the end surface corresponding to the protective cylinder (4).

10. The analysis and monitoring device for boiler combustion according to claim 2, characterized in that: The length of the step groove is greater than the total length of the protective tube (4) and the two bevel gear boxes (10), and there is a clearance space between the inner wall of the monitoring box (1) and the end of the fully extended and moved spur plate (7).

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