Flue gas diversion and distribution device of dust remover

Abstract

The utility model belongs to the technical field of flue gas diversion and distribution, and particularly relates to a flue gas diversion and distribution device of a dust remover, which comprises a spiral volute, a flue gas inlet is arranged on the front side of the spiral volute, an annular flue gas outlet is arranged on the bottom side of the middle of the spiral volute, a plurality of first diversion plates are fixedly connected between the top side and the bottom side of the annular flue gas outlet, and a plurality of second diversion plates are fixedly connected between the top side and the bottom side of the annular flue gas outlet. A plurality of gas purging nozzles are fixedly inserted into the side wall of the spiral volute, compressed air is generated through an air compressor and conveyed to a gas conveying pipe, and therefore the compressed air is controlled to intermittently enter a plurality of connecting pipes through a plurality of pulse valves, and the gas purging nozzles are arranged on the side wall of the spiral volute. Furthermore, dust accumulated in the spiral volute is purged through a plurality of gas purging nozzles, and in order to prevent high-temperature flue gas from burning the pulse valve through the connecting pipes, the plurality of connecting pipes are circularly cooled through a cooling assembly.

Description

TECHNICAL FIELD

[0001] The utility model relates to a flue gas guide distribution technology field, concretely is a dust remover flue gas guide distribution device. BACKGROUND

[0002] The flue gas distributor is a key component in the dust removal system, aiming to improve the dust removal efficiency by optimizing the flue gas flow path. It evenly distributes the flue gas entering the dust remover to the entire filtration area through a series of guide plates and flow regulating devices, avoiding the problem of excessive or insufficient filtration load in local areas due to uneven flue gas flow rate. Reasonable flue gas guide distribution not only reduces the impact and wear of filter bags and other filtration media, but also effectively reduces vortex and dead angles, ensuring that particulate matter in the flue gas is fully captured, thereby improving overall dust removal efficiency and extending equipment service life.

[0003] The existing flue gas distributor gradually forms ash in the flue gas passage after long-term use, which cannot be discharged with the flue gas. When the amount of accumulated ash reaches a certain level, it will affect the flowability of flue gas, leading to increased flue gas flow resistance and affecting dust removal efficiency. Moreover, the existing flue gas distributor has the problem of uneven guide, causing local flow rate to be too high, accelerating filter bag wear, and local flow rate to be too low, easily forming vortex and dead angles, affecting dust removal effect. Therefore, we propose a dust remover flue gas guide distribution device. SUMMARY

[0004] In view of the shortcomings of the prior art, the utility model provides a dust remover flue gas guide distribution device, a plurality of gas purging nozzles are fixedly inserted on the side wall of the spiral volute to purge the dust accumulated in the spiral volute, and the flue gas flowing out between the first sleeve and the heat preservation cylinder is subjected to secondary guide distribution by the secondary guide distribution assembly. Guide plate three and guide plate four are both arranged at an angle to the horizontal direction, which evenly divides the flow while delaying the flow of flue gas, solving the problem in the background.

[0005] In order to achieve the above object, the utility model discloses a dust remover flue gas guide distribution device through the following technical schemes, including spiral volute, the front side of spiral volute is provided with the smoke inlet, the middle bottom of spiral volute is provided with annular smoke outlet, the top side and the bottom side between annular smoke outlet are fixedly connected with a plurality of guide vane no.

[0006] Preferably, the secondary guide distribution assembly includes a second sleeve, the second sleeve is fixedly installed on the heat preservation cylinder by bolts, the inner wall top side of the second sleeve is fixedly connected with a plurality of guide vanes three, the inner wall bottom side of the second sleeve is fixedly connected with a plurality of guide vanes four.

[0007] Preferably, the cooling assembly includes a refrigerator, the refrigerator is arranged on the right side of the spiral volute, a heat exchange sleeve is provided on each of the connecting pipes, a cooling cavity is formed in the heat exchange sleeve, a liquid inlet and a liquid outlet are formed on the top of the heat exchange sleeve, the liquid inlet and the liquid outlet are communicated with the cooling cavity, a liquid inlet pipe and a liquid outlet pipe are fixedly connected with the output end and the input end of the refrigerator, the liquid inlets are fixedly connected with the liquid inlet pipe through pipes, and the liquid outlets are fixedly connected with the liquid outlet pipe through pipes.

[0008] Preferably, the outer surface of the heat exchange sleeve is fixedly connected with a plurality of heat dissipation fins.

[0009] Preferably, the plurality of guide vanes one, the plurality of guide vanes two, the plurality of guide vanes three and the plurality of guide vanes four are equally spaced.

[0010] Preferably, the guide vanes three and the guide vanes four are arranged at an angle with the horizontal direction.

[0011] The utility model provides a dust remover flue gas guide distribution device, compared with prior art has the following beneficial effects:

[0012] 1. The dust collector flue gas guide distribution device, a plurality of gas purging nozzles are fixedly inserted on the side wall of the spiral volute, compressed air is generated by the air compressor and delivered to the gas delivery pipe, so that the compressed gas intermittently enters a plurality of connecting pipes through a plurality of pulse valves, and then the dust accumulated in the spiral volute is purged through a plurality of gas purging nozzles, and in order to avoid the high-temperature flue gas from scalding the pulse valve through the connecting pipe, the connecting pipes are circulated and cooled by the cooling assembly.

[0013] 2. The dust collector flue gas guide distribution device, the flue gas is evenly divided into the space between the first sleeve and the heat preservation cylinder through a plurality of guide plates one from the annular smoke outlet of the spiral volute, and then is guided and distributed through a plurality of guide plates two, the flue gas flowing out of the space between the first sleeve and the heat preservation cylinder is guided and distributed again through a secondary guide distribution assembly, and the guide plate three and the guide plate four are arranged at an angle with the horizontal direction, so that the flue gas flow is delayed while being evenly divided and guided, and the flue gas flow rate is prevented from being too fast. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a front view structural schematic diagram of the main body of the utility model;

[0015] Figure 2 It is a top view structural schematic diagram of the main body of the utility model;

[0016] Figure 3 It is a front view cross-sectional structural schematic diagram of the main body of the utility model;

[0017] Figure 4 It is a second sleeve internal structure schematic diagram of the utility model;

[0018] Figure 5 It is a heat exchange sleeve cross-sectional structural schematic diagram of the utility model.

[0019] In the figure: 1, spiral volute; 2, smoke inlet; 3, gas delivery pipe; 4, air compressor; 5, refrigerating machine; 6, liquid inlet pipe; 7, liquid outlet pipe; 8, heat preservation cylinder; 9, gas purging nozzle; 10, connecting pipe; 11, pulse valve; 12, annular smoke outlet; 13, first sleeve; 14, guide plate one; 15, guide plate two; 16, second sleeve; 17, guide plate three; 18, guide plate four; 19, heat exchange sleeve; 20, cooling cavity; 21, liquid inlet; 22, liquid outlet; 23, heat dissipation fin. DETAILED DESCRIPTION

[0020] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts under the premise that no creative efforts are made, belong to the scope of protection of the present application.

[0021] Please refer to Figures 1-5 The utility model provides a technical scheme: a dust remover flue gas guide distribution device, including spiral volute 1, spiral volute 1's front side is provided with the smoke inlet 2, spiral volute 1's middle part bottom side is provided with annular smoke outlet 12, and the top side and bottom side between annular smoke outlet 12 are fixedly connected with a plurality of guide plates one 14, and spiral volute 1's middle part is fixedly installed with the heat preservation cylinder 8 above annular smoke outlet 12, and the bottom side of spiral volute 1 is fixedly connected with the first sleeve 13, and the inner wall of first sleeve 13 is fixedly connected with a plurality of guide plates two 15, and the outer wall of heat preservation cylinder 8 and the inner wall of first sleeve 13 are provided with secondary guide distribution assembly, and the sidewall of spiral volute 1 is fixedly inserted with a plurality of gas purging spray heads 9, and the input end of a plurality of gas purging spray heads 9 is fixedly communicated with the connecting pipe 10, and the input end of a plurality of connecting pipes 10 is fixedly communicated with pulse valve 11, and the right side of spiral volute 1 is provided with air compressor 4, and the output end of air compressor 4 is fixedly communicated with gas delivery pipe 3, and the input end of a plurality of pulse valves 11 is fixedly communicated on gas delivery pipe 3 through pipeline, and cooling assembly is also installed around spiral volute 1.

[0022] The dust remover flue gas guide distribution device uses, high temperature flue gas enters the inside of spiral volute 1 from smoke inlet 2, then is divided into the between first sleeve 13 and heat preservation cylinder 8 through a plurality of guide plates one 14 at annular smoke outlet 12, heat preservation cylinder 8 avoids the heat overflow of high temperature flue gas, and the flue gas between first sleeve 13 and heat preservation cylinder 8 then is guided and distributes through a plurality of guide plates two 15, then the flue gas that flows out between first sleeve 13 and heat preservation cylinder 8 carries out multiple guide distribution and delays flue gas flow through secondary guide distribution assembly, because the dust that will be accumulated in spiral volute 1 after long time use affects flue gas flow, the compressed air generated through air compressor 4 is delivered to gas delivery pipe 3, and the compressed air in gas delivery pipe 3 controls the intermittent entry of compressed gas in a plurality of connecting pipes 10 through a plurality of pulse valves 11, and then the compressed air in a plurality of connecting pipes 10 is blown through a plurality of gas purging spray heads 9 to the dust accumulated in spiral volute 1, and in order to avoid high temperature flue gas to scald pulse valve 11 through connecting pipe 10, a plurality of connecting pipes 10 are circulated and cooled through cooling assembly.

[0023] The secondary flow guide distribution assembly comprises a second sleeve 16 fixedly installed on the heat preservation cylinder 8 by bolts, the inner wall top side of the second sleeve 16 is fixedly connected with a plurality of flow guide plates three 17, and the inner wall bottom side of the second sleeve 16 is fixedly connected with a plurality of flow guide plates four 18. The flue gas flowing out from between the first sleeve 13 and the heat preservation cylinder 8 flows into the space between the second sleeve 16 and the heat preservation cylinder 8, and is distributed by the plurality of flow guide plates three 17 and the plurality of flow guide plates four 18, so that the uniform distribution of the flue gas is improved and the flue gas flow rate is reduced.

[0024] The cooling assembly comprises a refrigerating machine 5 arranged on the right side of the spiral volute 1, a plurality of connecting pipes 10 are each sleeved with a heat exchange sleeve 19, the heat exchange sleeve 19 is internally provided with a cooling cavity 20, the top sides of the heat exchange sleeve 19 are respectively provided with liquid inlet ports 21 and liquid outlet ports 22, the liquid inlet ports 21 and the liquid outlet ports 22 are in communication with the cooling cavity 20, the output end and the input end of the refrigerating machine 5 are fixedly communicated with a liquid inlet pipe 6 and a liquid outlet pipe 7, the plurality of liquid inlet ports 21 are fixedly communicated with the liquid inlet pipe 6 through pipelines, and the plurality of liquid outlet ports 22 are fixedly communicated with the liquid outlet pipe 7 through pipelines. The connecting pipe 10 is directly contacted with the heat exchange sleeve 19, the heat of the connecting pipe 10 is absorbed by the cooling liquid in the cooling cavity 20, the cooling liquid absorbing the heat flows out from the liquid outlet ports 22 into the liquid outlet pipe 7, and then returns to the refrigerating machine 5 to be cooled again, the cooling liquid cooled again flows out from the liquid inlet pipe 6 and returns to the cooling cavity 20 in the heat exchange sleeve 19 from the liquid inlet ports 21, so that the connecting pipe 10 is circularly cooled.

[0025] The outer surface of the heat exchange sleeve 19 is fixedly connected with a plurality of heat dissipation fins 23, so as to improve the heat exchange efficiency between the cooling liquid in the cooling cavity 20 and the outside.

[0026] The plurality of flow guide plates one 14, the plurality of flow guide plates two 15, the plurality of flow guide plates three 17 and the plurality of flow guide plates four 18 are evenly distributed, so that the flue gas is uniformly distributed after passing through.

[0027] The flow guide plates three 17 and the flow guide plates four 18 are arranged at an angle with the horizontal direction, so that the flow path of the flue gas is increased when the flue gas passes through the flow guide plates three 17 and the flow guide plates four 18, and the flow speed is slowed down.

[0028] Working principle: when the dust remover flue gas guide distribution device is used, high-temperature flue gas enters the inside of the spiral volute 1 from the smoke inlet 2, then is uniformly distributed through a plurality of guide plates one 14 into the space between the first sleeve 13 and the heat preservation cylinder 8 through the annular smoke outlet 12, the heat preservation cylinder 8 avoids the heat overflow of the high-temperature flue gas, the flue gas between the first sleeve 13 and the heat preservation cylinder 8 is then guided and distributed through a plurality of guide plates two 15, then the flue gas flowing out from the first sleeve 13 and the heat preservation cylinder 8, part of which flows into the space between the second sleeve 16 and the heat preservation cylinder 8, is guided and distributed through a plurality of guide plates three 17 and a plurality of guide plates four 18, thereby improving the uniform distribution of the flue gas, and since the guide plates three 17 and the guide plates four 18 are both arranged at an angle with the horizontal direction, the flow path of the flue gas is increased when the flue gas passes through the guide plates three 17 and the guide plates four 18, and the flow speed is delayed;

[0029] After long-term use, dust will accumulate in the inside of the spiral volute 1, affecting the flue gas flow, compressed air is generated by the air compressor 4 and delivered to the gas delivery pipe 3, the compressed air in the gas delivery pipe 3 controls the intermittent entry of compressed gas into a plurality of connecting pipes 10 through a plurality of pulse valves 11, and then the compressed air in the plurality of connecting pipes 10 blows away the dust accumulated in the spiral volute 1 through a plurality of gas purging nozzles 9, and in order to avoid the high-temperature flue gas scalding the pulse valves 11 through the connecting pipes 10, the connecting pipes 10 are directly contacted with the heat exchange sleeve 19, the heat of the connecting pipes 10 is absorbed by the cooling liquid in the cooling cavity 20, the cooling liquid absorbing heat flows out from the liquid outlet 22 into the liquid outlet pipe 7, thereby returning to the refrigerating machine 5 to be cooled again, the cooling liquid cooled again flows out from the liquid inlet pipe 6 and returns to the cooling cavity 20 in the heat exchange sleeve 19 from the liquid inlet 21, realizing the circulating cooling of the connecting pipes 10, and a plurality of heat dissipation fins 23 are fixedly connected to the outer surface of the heat exchange sleeve 19, improving the heat exchange efficiency between the cooling liquid in the cooling cavity 20 and the outside.

[0030] It should be noted that, in this text, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0031] Although the embodiments of the present application 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 these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A dust precipitator flue gas flow guiding distribution device comprising a spiral volute (1), characterized in that: The front side of the spiral volute (1) is provided with a smoke inlet (2), the middle bottom side of the spiral volute (1) is provided with an annular smoke outlet (12), a plurality of guide plates (14) are fixedly connected between the top side and the bottom side of the annular smoke outlet (12), a heat preservation cylinder (8) is fixedly installed above the middle part of the spiral volute (1) and above the annular smoke outlet (12), a first sleeve (13) is fixedly connected to the bottom side of the spiral volute (1), a plurality of guide plates (15) are fixedly connected to the inner wall of the first sleeve (13), a secondary flow distribution assembly is arranged between the outer wall of the heat preservation cylinder (8) and the inner wall of the first sleeve (13), a plurality of gas purging nozzles (9) are fixedly inserted into the side wall of the spiral volute (1), the input ends of the plurality of gas purging nozzles (9) are fixedly communicated with connecting pipes (10), the input ends of the plurality of connecting pipes (10) are fixedly communicated with pulse valves (11), an air compressor (4) is arranged on the right side of the spiral volute (1), the output end of the air compressor (4) is fixedly communicated with a gas conveying pipe (3), the input ends of the plurality of pulse valves (11) are fixedly communicated with the gas conveying pipe (3) through pipes, and a cooling assembly is further installed around the spiral volute (1).

2. A flue gas flow guiding and distributing device for a dust precipitator according to claim 1, characterized in that The secondary flow distribution assembly comprises a second sleeve (16), the second sleeve (16) is fixedly installed on the heat preservation cylinder (8) through bolts, a plurality of guide plates (17) are fixedly connected to the top side of the inner wall of the second sleeve (16), and a plurality of guide plates (18) are fixedly connected to the bottom side of the inner wall of the second sleeve (16).

3. A flue gas flow guiding and distributing device for a dust precipitator according to claim 1, characterized in that The cooling assembly comprises a refrigerating machine (5), the refrigerating machine (5) is arranged on the right side of the spiral volute (1), heat exchange sleeves (19) are arranged on the plurality of connecting pipes (10), a cooling cavity (20) is formed in the inside of each heat exchange sleeve (19), liquid inlets (21) and liquid outlets (22) are formed in the top sides of the two sides of each heat exchange sleeve (19), the liquid inlets (21) and the liquid outlets (22) are in communication with the cooling cavities (20), an inlet pipe (6) and an outlet pipe (7) are fixedly communicated with the output end and the input end of the refrigerating machine (5), the plurality of liquid inlets (21) are fixedly communicated with the inlet pipe (6) through pipes, and the plurality of liquid outlets (22) are fixedly communicated with the outlet pipe (7) through pipes.

4. A flue gas flow guiding and distributing device for a dust precipitator according to claim 3, characterized in that A plurality of heat dissipation fins (23) are fixedly connected to the outer surface of each heat exchange sleeve (19).

5. A flue gas flow guiding and distributing device for a dust precipitator according to claim 2, characterized in that The plurality of guide plates (14), the plurality of guide plates (15), the plurality of guide plates (17) and the plurality of guide plates (18) are evenly distributed.

6. A flue gas flow guiding and distributing device for a dust precipitator according to claim 2, characterized in that The guide plates (17) and the guide plates (18) are arranged at an angle with the horizontal direction.

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