Anti-corrosion auxiliary device for smoke exhaust of boiler

Abstract

The utility model discloses a boiler smoke discharge anticorrosion auxiliary device, and particularly relates to the boiler smoke discharge pipeline field, the boiler smoke discharge anticorrosion auxiliary device comprises a base, a common smoke pipe is supported on the top end of the base, the common smoke pipe is cooperatively connected with a driving mechanism, a drainage pipe is arranged on one side of the bottom end of the common smoke pipe, the common smoke pipe is connected with a smoke discharge pipe, and the smoke discharge pipe is connected with a smoke discharge pipe. A smoke sensor is installed at one end of each smoke exhaust pipe, an opening and closing mechanism is arranged on one side of each smoke sensor, the multiple smoke exhaust pipes are connected to the shared smoke pipe, the heights of the smoke exhaust pipes are different, and a liquid collecting hopper is arranged at the bottom end of the shared smoke pipe. The smoke exhaust pipe connected with the boilers can be automatically opened and closed, so that smoke intercommunication between the boilers is avoided, meanwhile, the smoke exhaust efficiency can be improved, the amount of formed condensate water falling into the shared smoke pipe is reduced, accumulated impurities and condensate water can be automatically and rapidly discharged, accumulation is avoided, and the energy consumption is reduced. Therefore, the anti-corrosion performance of the shared smoke pipe is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler smoke exhaust pipes, and more specifically, to a boiler smoke exhaust anti-corrosion auxiliary device. Background Art

[0002] When one boiler is running, the flue gas enters another standby boiler from the shared flue, generating corrosive condensate, which seriously corrodes the internal components of the standby boiler and endangers the safe operation of the boiler. In addition, since the boiler discharges flue gas after long-term operation, the flue gas rises along the flue to the tail of the flue. After the temperature drops, the moisture in the flue gas forms condensate and flows back to the bottom of the flue, causing long-term water accumulation at the bottom. The condensate absorbs the acid and alkali media of the flue gas, becoming the source of acid and alkali corrosion, causing serious production safety hazards such as corrosion, perforation, and collapse of the flue.

[0003] In the prior art, different flue gas exhaust pipes are connected to a common flue at different heights to avoid interconnection, and condensed water is collected at the bottom of the common flue for discharge, so as to solve the problem of boiler flue gas entering another boiler, ensure the dryness of the common flue, reduce corrosion, and improve the protection effect of the common flue.

[0004] However, there are still certain defects in the prior art. Since there are more solid particle impurities such as dust in the flue gas, when the solid particle impurities gather at the bottom of the common flue with the condensate, it is easy to cause blockage to the bottom discharge port, and it cannot be discharged in time, resulting in the continuous accumulation of condensate at the bottom of the common flue and the water level rising, which may still cause corrosion to the common flue. At the same time, due to the rising water level, it is possible to enter the flue gas exhaust pipe, causing safety hazards. Therefore, a boiler smoke exhaust anti-corrosion auxiliary device is proposed. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a boiler smoke exhaust anti-corrosion auxiliary device to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a boiler smoke exhaust anti-corrosion auxiliary device, comprising a base, the top of the base supports a common smoke pipe, the common smoke pipe is connected to a driving mechanism, a discharge pipe is arranged on one side of the bottom end of the common smoke pipe, the common smoke pipe is connected to a smoke exhaust pipe, a smoke sensor is installed at one end of the smoke exhaust pipe, and an opening and closing mechanism is arranged on one side of the smoke sensor.

[0007] When the boiler connected to the corresponding smoke exhaust pipe is in operation and generates smoke that enters the smoke exhaust pipe, the smoke sensor detects the presence of smoke, causing the opening and closing mechanism to operate and open the smoke exhaust pipe. When the boilers connected to the other smoke exhaust pipes are not in operation, the corresponding smoke exhaust pipe is in a closed state, thereby preventing the generated smoke from entering other boilers. During the smoke exhaust process, when the smoke enters the shared smoke pipe, the driving mechanism operates to improve the smoke exhaust efficiency. At the same time, the particulate impurities and condensed water accumulated at the bottom are automatically discharged to avoid accumulation, thereby ensuring the dryness of the inside of the shared smoke pipe, improving the anti-corrosion performance, and thus increasing the service life of the shared smoke pipe.

[0008] Preferably, a plurality of smoke exhaust pipes are connected to the common smoke pipe, and the smoke exhaust pipes are arranged at different heights.

[0009] Preferably, the driving mechanism comprises a first motor, and the first motor is mounted on a base;

[0010] A rotating rod, wherein the bottom end of the rotating rod is connected to the output end of the first motor, and the top end of the rotating rod is coaxially inserted into the common smoke pipe;

[0011] A spiral conveying blade, wherein the spiral conveying blade is arranged at the bottom end of the rotating rod;

[0012] A connecting rod, wherein the connecting rod is arranged at the top end of the spiral conveying blade, and one end of the connecting rod is connected to the rotating rod;

[0013] A scraper, the scraper being mounted on the other end of the connecting rod;

[0014] An exhaust fan is arranged at the top end of the rotating rod.

[0015] Preferably, a liquid collecting hopper is provided at the bottom end of the common smoke pipe, the scraper is slidably connected to the inner wall of the liquid collecting hopper, and the scraper is in a spiral curved structure.

[0016] Preferably, a conveying pipe is provided at the bottom end of the liquid collecting hopper, and one side of the bottom end of the conveying pipe is connected to a discharge pipe, and the spiral conveying blade is arranged in the conveying pipe.

[0017] Preferably, the opening and closing mechanism comprises a second motor, and the second motor is installed outside the smoke exhaust pipe;

[0018] A drive shaft, one end of which is connected to the output end of the second motor, and the other end of which is rotatably inserted into the smoke exhaust pipe;

[0019] A wind shield is arranged in the smoke exhaust pipe and connected to the end of the drive shaft.

[0020] Technical effects and advantages of the utility model:

[0021] 1. Through the arrangement of the first motor, the rotating rod, the spiral conveying blade, the connecting rod, the scraper and the exhaust fan, compared with the prior art, the exhaust fan rotates through the operation of the first motor, so that the smoke entering the common smoke pipe is quickly discharged, the smoke exhaust efficiency is improved, and the time for the smoke to stay at the top of the common smoke pipe is reduced, thereby reducing the amount of condensed water generated entering the common smoke pipe. The connecting rod drives the scraper to rotate. During the rotation of the scraper, the particulate impurities on the inner wall of the liquid collecting bucket are scraped, and when the scraper is in a spiral curved structure, it has a certain diversion effect on the particulate impurities, so that the particulate impurities and condensed water are scraped off in the conveying pipe, avoiding the accumulation of particulate impurities in the liquid collecting bucket to cause blockage. The spiral conveying blade at the bottom rotates, so that the condensed water and particulate impurities entering the conveying pipe are conveyed to the discharge pipe, thereby improving the conveying efficiency;

[0022] 2. Compared with the prior art, by configuring the smoke sensor, the second motor, the drive shaft and the wind shield, the smoke sensor detects the generation of smoke in the smoke exhaust pipe, so that the second motor is operated, thereby causing the drive shaft to drive the wind shield to rotate, so that the wind shield opens the smoke exhaust pipe, thereby allowing the smoke to flow from the smoke exhaust pipe to the common smoke pipe. When the boilers connected to the remaining smoke exhaust pipes are not in operation, the corresponding smoke exhaust pipes are in a closed state, thereby preventing the generated smoke from entering other boilers. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0024] Figure 2 This is a schematic diagram of the internal structure of the common smoke pipe of the utility model.

[0025] Figure 3 It is a structural schematic diagram of the driving mechanism of the utility model.

[0026] Figure 4 It is a structural schematic diagram of the smoke exhaust pipe of the utility model.

[0027] Figure 5 It is a structural schematic diagram of the opening and closing mechanism of the utility model.

[0028] The accompanying drawings are marked as follows: 1. base; 2. common smoke pipe; 3. driving mechanism; 301. first motor; 302. rotating rod; 303. spiral conveying blade; 304. connecting rod; 305. scraper; 306. exhaust fan; 4. exhaust pipe; 5. exhaust pipe; 6. smoke sensor; 7. opening and closing mechanism; 701. second motor; 702. driving shaft; 703. wind shield; 8. liquid collecting bucket; 9. conveying pipe. DETAILED DESCRIPTION

[0029] 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.

[0030] As attached Figure 1-5 A boiler smoke exhaust anti-corrosion auxiliary device shown in the figure includes a base 1, a common smoke pipe 2 is supported on the top of the base 1, the common smoke pipe 2 is connected with a driving mechanism 3, a discharge pipe 4 is arranged on one side of the bottom end of the common smoke pipe 2, the common smoke pipe 2 is connected with a smoke exhaust pipe 5, a smoke sensor 6 is installed at one end of the smoke exhaust pipe 5, an opening and closing mechanism 7 is arranged on one side of the smoke sensor 6, a plurality of smoke exhaust pipes 5 are connected to the common smoke pipe 2, and the heights of the smoke exhaust pipes 5 are different.

[0031] In specific implementation, when the boiler connected to the corresponding smoke exhaust pipe 5 is in operation and generates smoke that enters the smoke exhaust pipe 5, the smoke sensor 6 detects the presence of smoke, causing the opening and closing mechanism 7 to operate to open the smoke exhaust pipe 5. When the boilers connected to the remaining smoke exhaust pipes 5 are not in operation, the corresponding smoke exhaust pipe 5 is in a closed state, thereby preventing the generated smoke from entering other boilers. During the smoke exhaust process, when the smoke enters the common smoke pipe 2, the driving mechanism 3 operates to improve the smoke exhaust efficiency. At the same time, the particulate impurities and condensed water accumulated at the bottom are automatically discharged to avoid accumulation, thereby ensuring the dryness of the inside of the common smoke pipe 2, improving the anti-corrosion performance, and thus increasing the service life of the common smoke pipe 2.

[0032] As attached Figure 3 As shown, the driving mechanism 3 includes a first motor 301, and the first motor 301 is installed on the base 1;

[0033] A rotating rod 302, wherein the bottom end of the rotating rod 302 is connected to the output end of the first motor 301, and the top end of the rotating rod 302 is coaxially inserted into the common smoke pipe 2;

[0034] A spiral conveying blade 303, wherein the spiral conveying blade 303 is arranged at the bottom end of the rotating rod 302;

[0035] A connecting rod 304, wherein the connecting rod 304 is disposed at the top of the spiral conveying blade 303, and one end of the connecting rod 304 is connected to the rotating rod 302;

[0036] A scraper 305, wherein the scraper 305 is mounted on the other end of the connecting rod 304;

[0037] The exhaust fan 306 is disposed at the top of the rotating rod 302 .

[0038] A liquid collecting hopper 8 is disposed at the bottom end of the common smoke pipe 2, and the scraper 305 is slidably connected to the inner wall of the liquid collecting hopper 8, and the scraper 305 is in a spiral curved structure.

[0039] A conveying pipe 9 is disposed at the bottom of the liquid collecting hopper 8 , and one side of the bottom of the conveying pipe 9 is connected to the discharge pipe 4 , and the spiral conveying blade 303 is disposed in the conveying pipe 9 .

[0040] In a specific implementation, the exhaust fan 306 rotates by operating the first motor 301, thereby quickly exhausting the smoke entering the common smoke pipe 2, improving the smoke exhaust efficiency, and reducing the time the smoke stays at the top of the common smoke pipe 2, thereby reducing the amount of condensed water entering the common smoke pipe 2;

[0041] The connecting rod 304 drives the scraper 305 to rotate. During the rotation of the scraper 305, the granular impurities on the inner wall of the liquid collecting bucket 8 are scraped. When the scraper 305 is in a spiral curved structure, it has a certain diversion effect on the granular impurities, so that the granular impurities and condensed water are scraped off in the conveying pipe 9, avoiding the accumulation of granular impurities in the liquid collecting bucket 8 to cause blockage.

[0042] The spiral conveying blade 303 at the bottom rotates, so that the condensed water and particulate impurities entering the conveying pipe 9 are conveyed to the discharge pipe 4, thereby improving the conveying efficiency.

[0043] As attached Figure 4 and Figure 5 As shown, the opening and closing mechanism 7 includes a second motor 701, and the second motor 701 is installed outside the smoke exhaust pipe 5;

[0044] A driving shaft 702, one end of which is connected to the output end of the second motor 701, and the other end of which is rotatably inserted into the smoke exhaust pipe 5;

[0045] The wind shield 703 is arranged in the smoke exhaust pipe 5 and connected to the end of the driving shaft 702 .

[0046] During specific implementation, the smoke sensor 6 detects the generation of smoke in the smoke exhaust pipe 5, causing the second motor 701 to operate, thereby causing the drive shaft 702 to drive the wind shield 703 to rotate, so that the wind shield 703 opens the smoke exhaust pipe 5, thereby allowing the smoke to flow from the smoke exhaust pipe 5 to the common smoke pipe 2.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A boiler exhaust anti-corrosion auxiliary device, comprising a base (1), characterized in that: The top of the base (1) supports a common smoke pipe (2), the common smoke pipe (2) is connected to a driving mechanism (3), a discharge pipe (4) is arranged on one side of the bottom of the common smoke pipe (2), the common smoke pipe (2) is connected to a smoke exhaust pipe (5), a smoke sensor (6) is installed at one end of the smoke exhaust pipe (5), and an opening and closing mechanism (7) is arranged on one side of the smoke sensor (6).

2. A boiler exhaust anti-corrosion auxiliary device according to claim 1, characterized in that: A plurality of smoke exhaust pipes (5) are connected to the common smoke pipe (2), and the heights of the smoke exhaust pipes (5) are different.

3. A boiler exhaust anti-corrosion auxiliary device according to claim 2, characterized in that: The driving mechanism (3) comprises a first motor (301), wherein the first motor (301) is mounted on the base (1); A rotating rod (302), wherein the bottom end of the rotating rod (302) is connected to the output end of the first motor (301), and the top end of the rotating rod (302) is coaxially inserted into the common smoke pipe (2); A spiral conveying blade (303), wherein the spiral conveying blade (303) is arranged at the bottom end of the rotating rod (302); A connecting rod (304), wherein the connecting rod (304) is arranged at the top end of the spiral conveying blade (303), and one end of the connecting rod (304) is connected to the rotating rod (302); A scraper (305), wherein the scraper (305) is mounted on the other end of the connecting rod (304); An exhaust fan (306), wherein the exhaust fan (306) is arranged at the top end of the rotating rod (302).

4. A boiler exhaust anti-corrosion auxiliary device according to claim 3, characterized in that: A liquid collecting hopper (8) is provided at the bottom end of the common smoke pipe (2), the scraper (305) is slidably connected to the inner wall of the liquid collecting hopper (8), and the scraper (305) is in a spiral curved structure.

5. A boiler exhaust anti-corrosion auxiliary device according to claim 4, characterized in that: A conveying pipe (9) is provided at the bottom end of the liquid collecting hopper (8), and one side of the bottom end of the conveying pipe (9) is connected to the discharge pipe (4), and the spiral conveying blade (303) is arranged in the conveying pipe (9).

6. A boiler exhaust anti-corrosion auxiliary device according to claim 5, characterized in that: The opening and closing mechanism (7) comprises a second motor (701), and the second motor (701) is installed outside the smoke exhaust pipe (5); A driving shaft (702), one end of the driving shaft (702) being connected to the output end of the second motor (701), and the other end of the driving shaft (702) being rotatably inserted into the smoke exhaust pipe (5); A wind shield (703), wherein the wind shield (703) is arranged in the smoke exhaust pipe (5) and connected to the end of the driving shaft (702).

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