Flue gas monitoring device for boiler combustion

Abstract

The utility model discloses a flue gas monitoring device for boiler combustion, and relates to the technical field of boiler flue gas monitoring, in particular to a flue gas monitoring device for boiler combustion, which comprises a gas outlet pipe, the top end of the gas outlet pipe is fixedly connected with a cooling gas conveying pipe, and the cooling gas conveying pipe is in a two-layer vortex shape. The cooling gas conveying pipe is fixedly connected with a plurality of shunting ring plates which are arranged in a layered mode, the cooling gas conveying pipe sequentially penetrates through the shunting ring plates, and meanwhile a temperature sensor for detecting the temperature and a flue gas detector for detecting flue gas are arranged at the top end of the cooling gas conveying pipe; and a driving fan capable of rotating under the blowing of the flue gas is arranged at the top end of the cooling gas conveying pipe. According to the flue gas monitoring device for boiler combustion, air blown by a cooling fan to a cooling gas conveying pipe can be shunted through a plurality of shunting ring plates, and a relative thermal insulation effect can be achieved through two-layer arrangement of the cooling gas conveying pipe.

Description

TECHNICAL FIELD

[0001] The utility model relates to a boiler flue gas monitoring technical field, concretely is a kind of flue gas monitoring device for boiler combustion. BACKGROUND

[0002] Boiler is a kind of energy conversion equipment, it converts the chemical energy of fuel combustion into the heat energy of steam or high-temperature water.In the combustion equipment part, fuel combustion emits heat continuously, while generating a large amount of high-temperature flue gas, and flue gas is finally discharged through exhaust device.Boiler is widely used in the production and life of modern society, and most of the existing boilers using coal, oil or biomass as fuel are difficult to meet the requirements of "Boiler Air Pollutant Emission Standard", especially in the case of incomplete combustion of fuel, pollution is more serious, and whether flue gas emission meets the standard needs to be detected by flue gas detection equipment, but the flue gas discharged by the boiler during work is often accompanied by a large amount of hot gas, and the flue gas detection device is usually installed in the pipeline of flue gas discharge, and the high-temperature flue gas will directly contact the flue gas detection device, which may cause irreversible damage to the internal elements of the flue gas detection device, thereby directly affecting the accuracy of detection, therefore we propose a flue gas monitoring device for boiler combustion. SUMMARY

[0003] The utility model provides a kind of flue gas monitoring device for boiler combustion, solve the problem raised in above background technology.

[0004] To achieve the above purpose, the utility model is realized by the following technical scheme: a kind of flue gas monitoring device for boiler combustion, including gas outlet pipe, the top of the gas outlet pipe is fixedly connected with cooling gas pipe, its cooling gas pipe is two layers vortex, and a plurality of shunt ring plates of layered arrangement are fixedly connected on its cooling gas pipe, its cooling gas pipe passes through shunt ring plate in turn, while temperature sensor for detecting temperature and flue gas detector for detecting flue gas are arranged at the top of its cooling gas pipe, the top of the cooling gas pipe is provided with driven fan that can rotate under the blowing of flue gas, and the driven fan is connected with cooling fan that can blow cooling gas pipe by linkage.

[0005] Optionally, the outermost side of the cooling gas pipe is fixedly connected with fixed outer ring, and the second fixing rod is fixedly connected between the shunt ring plate and the fixed outer ring.

[0006] Optionally, the linkage includes driving ring, linkage ring and connecting rod, and the bottom of the driven fan is fixedly connected with the connecting rod.

[0007] Optionally, one end of the connecting rod is fixedly connected with the linkage ring, and the outer side of the linkage ring is fixedly connected with the driving ring.

[0008] Optionally, the cooling fan is fixedly connected to the outside of the driving ring and is above all the shunt ring plates.

[0009] Optionally, the inner side of the top end of the fixed outer ring is fixedly connected with a plurality of first fixed supports, one end of the first fixed support is fixedly connected with an air outlet pipe.

[0010] Optionally, the top end of the cooling gas pipe is fixedly connected with an air inlet pipe, and the air outlet pipe and the air inlet pipe are both above the middle shunt ring plate.

[0011] Optionally, the bottom end of the air outlet pipe and the top end of the air inlet pipe are movably sleeved with the linkage ring, and the driving ring is movably sleeved outside the air outlet pipe.

[0012] Optionally, the air outlet pipe is above the air inlet pipe, the air outlet pipe and the air inlet pipe are connected through the linkage ring, and the linkage ring can seal the gap between the air outlet pipe and the air inlet pipe.

[0013] Optionally, the temperature sensor and the flue gas detector are installed on the inner wall of the air outlet pipe, and the driving fan is installed in the air outlet pipe.

[0014] The utility model has the following beneficial effects:

[0015] 1. The flue gas monitoring device for boiler combustion, through a plurality of shunt ring plates, the air blown by the cooling fan to the cooling gas pipe can be shunted, and through the two-layer design of the cooling gas pipe, the relative temperature insulation effect can be achieved, so that the blown air can gradually cool the flue gas in the cooling gas pipe, thereby achieving better cooling effect, and better protecting the temperature sensor and the flue gas detector.

[0016] 2. The flue gas monitoring device for boiler combustion, through the double-layer vortex design of the cooling gas pipe, the extension path of the cooling gas pipe can be extended under the condition of saving space, so that the flue gas passing through the cooling gas pipe can stay in the cooling gas pipe for a longer time, the flue gas can be air-cooled for a longer time, and under the action of the shunt ring plate, a certain heat conduction effect can be achieved, the heat dissipation area is increased, and the cooling effect of the flue gas is better. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure schematic view of the utility model;

[0018] Figure 2 It is a sectional structure schematic view of the utility model;

[0019] Figure 3 It is a structure schematic view of the cooling fan connection of the utility model;

[0020] Figure 4 The structure schematic view of the cooling gas conveying pipe connection of the utility model is shown in the figure.

[0021] Figure 5 The structure schematic view of the utility model A is shown in the figure.

[0022] In the figure: 1, gas outlet pipe; 2, fixed outer ring; 3, cooling gas conveying pipe; 4, cooling fan; 5, first fixed support; 6, gas outlet end pipe; 7, flue gas detector; 8, shunt ring plate; 9, second fixed rod; 10, drive ring sleeve; 11, gas inlet end pipe; 12, linkage ring; 13, connecting rod; 14, drive fan; 15, temperature sensor. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Please refer to Figures 1 to 5The utility model provides a kind of flue gas monitoring device for boiler combustion, including outlet pipe 1, the top end of outlet pipe 1 is fixedly connected with cooling gas pipe 3, its cooling gas pipe 3 is two layers vortex, by the design of double-layer vortex, it can extend the extension path of cooling gas pipe 3 under the condition of saving space, in turn make the flue gas passing through cooling gas pipe 3 can be longer in cooling gas pipe 3 Residual time, so that its flue gas can be longer time air cooling, and cooling gas pipe 3 is fixedly connected with multiple shunt ring plate 8 arranged in layers, by the design of shunt ring plate 8, it can play a certain degree of shunt, avoid the heat exchange between shunt ring plate 8, in turn make the gradually moving flue gas in cooling gas pipe 3 can gradually be cooled, and when flue gas moves to the upper cooling gas pipe 3, the air in its upper layer just enters between shunt ring plate 8, in turn reduce the influence of heat emitted by cooling gas pipe 3 to air, so that its cooling effect is better, its cooling gas pipe 3 passes shunt ring plate 8 in turn, while the top of cooling gas pipe 3 is provided with temperature sensor 15 for detecting temperature and flue gas detector 7 for detecting flue gas, by temperature sensor 15 and flue gas detector 7, flue gas can be detected in real time, the top of cooling gas pipe 3 is provided with driven fan 14 rotatable under the blowing of flue gas, in turn make the flue gas discharged can drive driven fan 14 to rotate, provide power source, its driven fan 14 is connected with cooling fan 4 for blowing cooling gas pipe 3 by linkage, in turn make driven fan 14 can drive cooling fan 4 to rotate, under the rotation of cooling fan 4, cooling gas pipe 3 can be blown.

[0025] Please refer to Figures 1 to 5 The outermost side of cooling gas pipe 3 is fixedly connected with fixed outer ring 2, and shunt ring plate 8 and fixed outer ring 2 are fixedly connected with second fixing rod 9, by the fixation of second fixing rod 9, the fixation between shunt ring plate 8 and second fixing rod 9 is more stable.

[0026] Please refer to Figures 1 to 5 The linkage includes driving ring sleeve 10, linkage ring 12, connecting rod 13, the bottom of driven fan 14 is fixedly connected with connecting rod 13, under the driving of driven fan 14, connecting rod 13 can rotate, and one end of connecting rod 13 is fixedly connected with linkage ring 12, under the driving of connecting rod 13, linkage ring 12 can rotate, the outer side of linkage ring 12 is fixedly connected with driving ring sleeve 10, under the driving of linkage ring 12, driving ring sleeve 10 can rotate, cooling fan 4 is fixedly connected on the outer side of driving ring sleeve 10, under the driving of driving ring sleeve 10, cooling fan 4 can rotate.

[0027] Please refer to Figures 1 to 5, the top end of the cooling gas pipe 3 is fixedly connected with the gas inlet pipe 11, the inner side of the top end of the fixed outer side ring 2 is fixedly connected with a plurality of first fixed supports 5, one end of the first fixed support 5 is fixedly connected with the gas outlet pipe 6, and the gas outlet pipe 6 can be fixed through the connection of the first fixed support 5.

[0028] Please refer to Figures 1 to 5 , the bottom end of the gas outlet pipe 6 and the top end of the gas inlet pipe 11 are movably sleeved with the linkage ring 12, the linkage ring 12 can seal between the gas outlet pipe 6 and the gas inlet pipe 11, so that the flue gas can smoothly enter the gas outlet pipe 6, and the linkage ring 12 can be fixed and rotated, and the driving ring sleeve 10 is movably sleeved on the outside of the gas outlet pipe 6.

[0029] Please refer to Figures 1 to 5 , the temperature sensor 15 and the flue gas detector 7 are installed on the inner wall of the gas outlet pipe 6, so as to monitor the flue gas, and the driving fan 14 is installed in the gas outlet pipe 6, so that the flowing flue gas can smoothly drive the driving fan 14 to rotate.

[0030] In summary, the flue gas monitoring device for boiler combustion is used, the flue gas enters the cooling gas pipe 3 through the gas outlet pipe 1, then enters the gas inlet pipe 11, and is discharged through the gas outlet pipe 6, when the flue gas passes through the driving fan 14, under the push of the airflow, the driving fan 14 can rotate, then the linkage ring 12 is driven to rotate by the connecting rod 13, under the driving of the linkage ring 12, the driving ring sleeve 10 can rotate, under the driving of the driving ring sleeve 10, the cooling fan 4 can rotate, under the action of the rotating cooling fan 4, air can be blown between the shunt ring plates 8, the air can cool the cooling gas pipe 3, and under the heat conduction effect of the cooling gas pipe 3 and the shunt ring plates 8, the flue gas can be effectively cooled.

[0031] In the description of the utility model, it is necessary to explain that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance, in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements inside. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes the elements inherent in such process, method, article or device.

[0032] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A device for monitoring the flue gases of a boiler combustion, comprising an outlet pipe (1), characterized in that: The top end of the air outlet pipe (1) is fixedly connected with a cooling gas conveying pipe (3), the cooling gas conveying pipe (3) is in a two-layer vortex shape, a plurality of shunt ring plates (8) are fixedly connected on the cooling gas conveying pipe (3) in a layered manner, the cooling gas conveying pipe (3) sequentially passes through the shunt ring plates (8), and the top end of the cooling gas conveying pipe (3) is provided with a temperature sensor (15) for detecting temperature and a flue gas detector (7) for detecting flue gas, the top end of the cooling gas conveying pipe (3) is provided with a driven fan (14) which can rotate under the blowing of flue gas, and the driven fan (14) is connected with a cooling fan (4) which can blow air to the cooling gas conveying pipe (3) through a linkage.

2. A flue gas monitoring device for boiler combustion as claimed in claim 1, wherein: The outermost side of the cooling gas conveying pipe (3) is fixedly connected with a fixed outer ring (2), and the shunt ring plates (8) and the fixed outer ring (2) are jointly fixedly connected with a second fixing rod (9).

3. A flue gas monitoring device for boiler combustion as claimed in claim 1, wherein: The linkage comprises a driving ring sleeve (10), a linkage ring (12) and a connecting rod (13), and the bottom end of the driven fan (14) is fixedly connected with the connecting rod (13).

4. A flue gas monitoring device for boiler combustion as claimed in claim 3 wherein: One end of the connecting rod (13) is fixedly connected with the linkage ring (12), and the outer side of the linkage ring (12) is fixedly connected with the driving ring sleeve (10).

5. A flue gas monitoring device for boiler combustion as claimed in claim 4 wherein: The cooling fan (4) is fixedly connected to the outer side of the driving ring sleeve (10), and the cooling fan (4) is above all the shunt ring plates (8).

6. A flue gas monitoring device for boiler combustion as claimed in claim 2, wherein: A plurality of first fixing supports (5) are fixedly connected to the inner side of the top end of the fixed outer ring (2), and one end of each first fixing support (5) is fixedly connected with an air outlet end pipe (6).

7. A flue gas monitoring device for boiler combustion as claimed in claim 6 wherein: The top end of the cooling gas conveying pipe (3) is fixedly connected with an air inlet end pipe (11), and the air outlet end pipe (6) and the air inlet end pipe (11) are both above the middle shunt ring plate (8).

8. A flue gas monitoring device for boiler combustion as claimed in claim 7, wherein: The bottom end of the air outlet end pipe (6) and the top end of the air inlet end pipe (11) are movably sleeved with the linkage ring (12), and the driving ring sleeve (10) is movably sleeved on the outer side of the air outlet end pipe (6).

9. A flue gas monitoring device for boiler combustion as claimed in claim 8, wherein: The air outlet end pipe (6) is above the air inlet end pipe (11), the air outlet end pipe (6) and the air inlet end pipe (11) are connected through the linkage ring (12), and the linkage ring (12) can seal the gap between the air outlet end pipe (6) and the air inlet end pipe (11).

10. A flue gas monitoring device for boiler combustion as claimed in claim 6 wherein: The temperature sensor (15) and the flue gas detector (7) are installed on the inner wall of the air outlet end pipe (6), and the driven fan (14) is installed in the air outlet end pipe (6).

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