Boiler flue gas waste heat utilization device

Abstract

The utility model discloses a boiler flue gas waste heat utilization device, specifically related to waste heat utilization technical field, including the tank, the purification tank one side is equipped with the water storage tank, is equipped with the conveying pipe in the water storage tank, is equipped with the mounting mechanism of installation and dismounting to conveying pipe in the water storage tank, and the mounting mechanism includes two first support plates of being equipped in the water storage tank, is equipped with a plurality of first limit board in first support plate top, is equipped with second support plate in first support plate top, is equipped with a plurality of second limit board in second support plate bottom, first limit board and second limit board all with conveying pipe are adapted, and first support plate and first limit board both sides all are equipped with first thread hole. The utility model discloses a mounting mechanism can take out conveying pipe from the water storage tank inside, is convenient for the scale on conveying pipe to clean, improves the heat dissipation efficiency, still can clean the dust on the inner wall of purification tank through the ash removal mechanism, guarantees the tidiness in the purification tank inside.

Description

Technical Field

[0001] This utility model relates to the field of waste heat utilization technology, specifically to a boiler flue gas waste heat utilization device. Background Technology

[0002] Boiler flue gas waste heat recovery device is a special equipment for coal-fired, oil-fired, and gas-fired boilers. It is installed at the boiler flue outlet to recover waste heat from the flue gas to heat domestic water or boiler feedwater.

[0003] For example, Chinese patent application number 202421258078.9 discloses a boiler flue gas waste heat recovery and utilization device, including a housing, a first scraping mechanism, a second scraping mechanism, a dust removal mechanism, a waste heat utilization box, a spiral air guide pipe, and a locking mechanism. The first scraping mechanism is located on the lower side inside the housing, the second scraping mechanism is located above the first scraping mechanism, the dust removal mechanism is located at the upper end inside the housing, the spiral air guide pipe is located inside the waste heat utilization box, and the locking mechanism is located at the door and the front side of the housing. This technical solution uses the first scraping mechanism, which, by pulling handle one in conjunction with scraper one and scraper two, can scrape off the flue gas dust adhering to the side walls and bottom of the housing. By pulling handle two in conjunction with scraper three, dust can be scraped off the rear wall inside the housing, greatly improving cleaning efficiency.

[0004] However, the following problems still exist in this technical solution: the air duct is in the water for a long time, which can easily lead to scale buildup on the outside of the air duct. The scale will affect the heating of the water inside the air duct by the flue gas. Utility Model Content

[0005] The purpose of this utility model is to provide a waste heat utilization device for flue gas. The device can remove the conveying pipe from the water storage tank through the installation mechanism, which facilitates the cleaning of scale on the conveying pipe and improves heat dissipation efficiency. The device can also clean the dust on the inner wall of the purification box through the dust removal mechanism, ensuring the cleanliness of the inside of the purification box, thereby solving the above-mentioned shortcomings in the technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a boiler flue gas waste heat utilization device, including a purification box, a water storage tank on one side of the purification box, a conveying pipe inside the water storage tank, and an installation mechanism for installing and disassembling the conveying pipe inside the water storage tank.

[0007] Preferably, the installation mechanism includes two first support plates located inside the water storage tank. The top of the first support plate is provided with multiple first limiting plates, and the top of the first support plate is provided with a second support plate. The bottom of the second support plate is provided with multiple second limiting plates. Both the first limiting plates and the second limiting plates are adapted to the delivery pipe. The first support plate and the first limiting plates are provided with first threaded holes on both sides. The two connected first threaded holes are internally threaded with the same first bolt for installing and disassembling the delivery pipe.

[0008] Preferably, the top of the water storage tank is provided with a sealing mechanism for sealing the water storage tank. The sealing mechanism includes a sealing cover on the top of the water storage tank, and insertion slots are provided on both sides of the sealing cover and the water storage tank. The insertion slots are adapted to the delivery pipe. Two support plates are provided on both sides of the sealing cover and the water storage tank. The support plates are provided with second threaded holes. The two connected second threaded holes are internally threaded with the same second bolt. The top of the sealing cover is provided with two handles for sealing the water storage tank.

[0009] Preferably, a filter screen and an activated carbon plate are inserted inside the purification box, with the filter screen and activated carbon plate arranged vertically. A door is movably connected to the front of the purification box via a hinge. Both the purification box and the door have insertion holes, and the same insertion rod is inserted into two connected insertion holes for purifying the flue gas.

[0010] Preferably, the purification chamber is equipped with a dust removal mechanism for cleaning dust. The dust removal mechanism includes a dust removal plate located inside the purification chamber, a threaded rod movably connected to the bottom of the purification chamber via a bearing, a fixed plate threadedly connected to the outside of the threaded rod, the top of the fixed plate being fixedly connected to the bottom of the dust removal plate, the rear end of the threaded rod penetrating the purification chamber and extending out of the rear side of the purification chamber, and a motor fixedly installed at the rear end of the threaded rod for cleaning dust.

[0011] Preferably, an air inlet pipe is connected to one side of the bottom of the purification box, and an air outlet pipe is connected to one side of the top of the purification box. The air outlet pipe is connected to the conveying pipe by a third bolt for conveying flue gas.

[0012] Preferably, the top of the sealing cap is connected to a water inlet pipe, and one side of the water storage tank is connected to a water outlet pipe for water discharge.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows: 1. Rotate the first bolt to unscrew it from the first threaded hole, then pull the second support plate to move it away from the top of the first support plate. Pull the delivery pipe to remove it from the water tank, making it easier to clean the scale on the delivery pipe and improve heat dissipation efficiency. 2. Start the motor. The motor can drive the threaded rod to rotate. The rotation of the threaded rod drives the fixed plate to move. The movement of the fixed plate can drive the cleaning plate to move. The cleaning plate can clean the dust on the inner wall of the purification box, ensuring the cleanliness of the inside of the purification box. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 This is a front view of the present invention; Figure 2 This is a rear view of the present invention; Figure 3 This is a schematic diagram of the internal structure of the purification box and water storage tank of this utility model; Figure 4 This is a cross-sectional view of the water storage tank of this utility model; Figure 5 This is a schematic diagram of the dust removal mechanism of this utility model; Figure 6 This is a schematic diagram of the sealing mechanism of this utility model; Figure 7 This is a schematic diagram of the installation mechanism of this utility model.

[0016] Explanation of reference numerals in the attached figures: 1. Purification box; 2. Water storage tank; 3. Delivery pipe; 4. Installation mechanism, 401 First support plate, 402 First limiting plate, 403 Second support plate, 404 Second limiting plate, 405 First threaded hole, 406 First bolt; 5. Sealing mechanism, 501. Sealing cover, 502. Insertion groove, 503. Support plate, 504. Second threaded hole, 505. Second bolt, 506. Handle; 6 filter screens, 7 activated carbon plates; 8. Dust removal mechanism, 801 dust removal plate, 802 threaded rod, 803 fixing plate, 804 motor; 9. Box door, 10. Plug hole, 11. Plug rod, 12. Air outlet pipe, 13. Air inlet pipe, 14. Water inlet pipe, 15. Third bolt, 16. Water outlet pipe. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0018] This utility model provides, for example Figure 1-7The boiler flue gas waste heat utilization device shown includes a purification box 1, a water storage tank 2 on one side of the purification box 1, a conveying pipe 3 inside the water storage tank 2, an installation mechanism 4 for installing and disassembling the conveying pipe 3 inside the water storage tank 2, a filter screen 6 inserted inside the purification box 1, and an activated carbon plate 7 inserted inside the purification box 1. The filter screen 6 and the activated carbon plate 7 are arranged vertically. like Figure 1-7 As shown, the front of the purification box 1 is connected to the door 9 by a hinge. Both the purification box 1 and the door 9 are provided with insertion holes 10. The same insertion rod 11 is inserted into the two connected insertion holes 10. The bottom side of the purification box 1 is connected to the air inlet pipe 13, and the top side of the purification box 1 is connected to the air outlet pipe 12. The air outlet pipe 12 is connected to the delivery pipe 3 by a third bolt 15. The flue gas enters the purification chamber 1 through the inlet pipe 13. The flue gas easily generates dust on the inner wall of the purification chamber 1. The filter screen 6 inside the purification chamber 1 can filter the impurities in the flue gas, and the activated carbon plate 7 can adsorb the harmful substances in the flue gas to prevent the flue gas from polluting the surrounding environment. The flue gas enters the delivery pipe 3 through the outlet pipe 12. Water is poured into the water storage tank 2 through the water inlet pipe 14. The heat emitted by the delivery pipe 3 is used to heat the water and utilize the flue gas. The heated water can be discharged through the water outlet pipe 16.

[0019] like Figure 4 , 6 As shown in Figure 7, the installation mechanism 4 includes two first support plates 401 located inside the water storage tank 2. The top of the first support plate 401 is provided with multiple first limiting plates 402, the top of the first support plate 401 is provided with a second support plate 403, and the bottom of the second support plate 403 is provided with multiple second limiting plates 404. The first limiting plates 402 and the second limiting plates 404 are both adapted to the conveying pipe 3. The first support plate 401 and the first limiting plate 402 are provided with first threaded holes 405 on both sides, and the two connected first threaded holes 405 are threaded with the same first bolt 406. like Figure 6 As shown, the top of the water storage tank 2 is provided with a sealing mechanism 5 to seal the water storage tank 2. The sealing mechanism 5 includes a sealing cover 501 on the top of the water storage tank 2. Both the sealing cover 501 and the water storage tank 2 are provided with insertion slots 502. The insertion slots 502 are adapted to the delivery pipe 3. Both the sealing cover 501 and the water storage tank 2 are provided with two support plates 503. The support plates 503 are provided with second threaded holes 504. The two connected second threaded holes 504 are internally threaded with the same second bolt 505. The top of the sealing cover 501 is provided with two handles 506. The top of the sealing cover 501 is connected to the water inlet pipe 14. The side of the water storage tank 2 is connected to the water outlet pipe 16. Rotate the second bolt 505 to unscrew it from the second threaded hole 504. Then pull the handle 506 to remove the sealing cover 501 from the top of the water tank 2. Next, rotate the first bolt 406 to unscrew it from the first threaded hole 405. Then pull the second support plate 403 to remove it from the top of the first support plate 401. Unscrew the third bolt 15 from the air outlet pipe 12 and the conveying pipe 3. Pull the conveying pipe 3 to remove it from the water tank 2, making it easier to clean the scale on the conveying pipe 3 and improve heat dissipation efficiency.

[0020] like Figure 5 As shown, the purification box 1 is equipped with a dust removal mechanism 8 for cleaning dust. The dust removal mechanism 8 includes a dust removal plate 801 located inside the purification box 1. A threaded rod 802 is movably connected to the bottom of the purification box 1 via a bearing. A fixing plate 803 is threadedly connected to the outside of the threaded rod 802. The top of the fixing plate 803 is fixedly connected to the bottom of the dust removal plate 801. The rear end of the threaded rod 802 passes through the purification box 1 and extends out of the rear side of the purification box 1. A motor 804 is fixedly installed at the rear end of the threaded rod 802. Pull the plug rod 11 to pull it out from the plug hole 10. Rotate the door 9 to move it away from the front of the purification box 1. Start the motor 804. The motor 804 can drive the threaded rod 802 to rotate. The rotation of the threaded rod 802 drives the fixed plate 803 to move. The movement of the fixed plate 803 can drive the cleaning plate 801 to move. The cleaning plate 801 can clean the dust on the inner wall of the purification box 1 to ensure the cleanliness of the inside of the purification box 1. The cleaned dust and filtered impurities fall on the top of the cleaning plate 801. The cleaning plate 801 is removed from the inside of the purification box 1 to clean the dust and impurities.

[0021] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, 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 flue gas waste heat utilization device, comprising a purification box (1), characterized in that: The purification box (1) is provided with a water storage tank (2) on one side, and a conveying pipe (3) is provided inside the water storage tank (2). The water storage tank (2) is provided with an installation mechanism (4) for installing and disassembling the conveying pipe (3). The installation mechanism (4) includes two first support plates (401) located inside the water storage tank (2). The top of the first support plate (401) is provided with multiple first limiting plates (402). The top of the first support plate (401) is provided with a second support plate (403). The bottom of the second support plate (403) is provided with multiple second limiting plates (404). The first limiting plate (402) and the second limiting plate (404) are both adapted to the conveying pipe (3). The first support plate (401) and the first limiting plate (402) are provided with first threaded holes (405) on both sides. The two connected first threaded holes (405) are internally threaded with the same first bolt (406).

2. The boiler flue gas waste heat utilization device according to claim 1, characterized in that: The top of the water storage tank (2) is provided with a sealing mechanism (5) to seal the water storage tank (2); The sealing mechanism (5) includes a sealing cover (501) on the top of the water tank (2). Both the sealing cover (501) and the water tank (2) have insertion slots (502) on both sides. The insertion slots (502) are adapted to the delivery pipe (3). Both the sealing cover (501) and the water tank (2) have two support plates (503) on both sides. The support plates (503) have second threaded holes (504). The two connected second threaded holes (504) are internally threaded with the same second bolt (505). The top of the sealing cover (501) has two handles (506).

3. The boiler flue gas waste heat utilization device according to claim 1, characterized in that: The purification box (1) is equipped with a filter screen (6) and an activated carbon plate (7). The filter screen (6) and the activated carbon plate (7) are arranged vertically. The front of the purification box (1) is connected to a door (9) via a hinge. Both the purification box (1) and the door (9) are provided with insertion holes (10). The two connected insertion holes (10) are connected to the same insertion rod (11).

4. The boiler flue gas waste heat utilization device according to claim 1, characterized in that: The purification box (1) is equipped with a dust removal mechanism (8) for cleaning dust. The dust removal mechanism (8) includes a dust removal plate (801) disposed inside the purification box (1). A threaded rod (802) is movably connected to the bottom of the purification box (1) via a bearing. A fixing plate (803) is threadedly connected to the outside of the threaded rod (802). The top of the fixing plate (803) is fixedly connected to the bottom of the dust removal plate (801). The rear end of the threaded rod (802) passes through the purification box (1) and extends out of the rear side of the purification box (1). A motor (804) is fixedly provided at the rear end of the threaded rod (802).

5. A boiler flue gas waste heat utilization device according to claim 1, characterized in that: The bottom side of the purification box (1) is connected to an air inlet pipe (13), and the top side of the purification box (1) is connected to an air outlet pipe (12). The air outlet pipe (12) and the delivery pipe (3) are connected by a third bolt (15).

6. The boiler flue gas waste heat utilization device according to claim 2, characterized in that: The top of the sealing cover (501) is connected to a water inlet pipe (14), and the side of the water storage tank (2) is connected to a water outlet pipe (16).

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