Air preheater of heating boiler

Abstract

The utility model relates to the technical field of air preheaters of heating boilers, in particular to an air preheater of a heating boiler, which is characterized in that dust in air is filtered by starting an air inlet mechanism, the filtered dust is discharged into a heat exchange mechanism, and the air discharged by the air inlet mechanism is heated through heat dissipation of a heat dissipation mechanism. Hot air is discharged into the heat supply boiler by starting the discharging mechanism to preheat the heat supply boiler, the inner wall of the heat dissipation mechanism is cleaned by starting the cleaning mechanism, the heat dissipation function of the heat dissipation mechanism is prevented from being affected, and the practicability of the equipment is improved; comprising a smoke inlet mechanism; the smoke inlet mechanism is installed at the top end of the heat exchange mechanism, the heat dissipation mechanism is installed in the heat exchange mechanism, the air inlet mechanism is installed on the right side of the heat exchange mechanism, the exhaust mechanism is installed on the left side of the heat exchange mechanism, and the cleaning mechanism is installed at the top end of the heat exchange mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of air preheaters for heating boilers, and particularly relates to an air preheater for a heating boiler. Background Art

[0002] A heating boiler is a device used to provide steam or hot water for industrial and agricultural production, heating, and daily life; the heating boiler generates heat energy by burning fuel, transfers this heat energy to the water in the boiler, heats the water and converts it into steam or hot water, and then transports it to the places where heating is required through pipelines; such boilers play an important role in aspects such as winter heating, heating in industrial production, and steam supply.

[0003] For example, in a class of existing technologies represented by the air preheater for a heating boiler disclosed in the utility model patent with the application number 202222380468.0, its main structure includes a filter box, a flue connecting pipe, a filter element, a preheating box, a top cover, heat dissipation pipes, etc., and realizes the air preheating of the heating boiler through the cooperation of structures such as the filter box, the flue connecting pipe, the filter element, the preheating box, the top cover, and the heat dissipation pipes.

[0004] Although the dust in the flue gas is filtered in the above patent, due to the long-term operation of the equipment, dirt may still adhere to the inner wall of the heat dissipation pipe, thereby affecting the function of the heat dissipation pipe, and when the cold air is discharged into the equipment for heat exchange, the dust in the air may cause the inner wall of the equipment to be dirty. Content of the Utility Model

[0005] To solve the above technical problems, the utility model provides an air preheater for a heating boiler, which filters the dust in the air by starting an air intake mechanism, discharges it into a heat exchange mechanism after filtration, dissipates heat through a heat dissipation mechanism, heats the air discharged by the air intake mechanism, discharges the hot air into the heating boiler for preheating by starting an exhaust mechanism, and cleans the inner wall of the heat dissipation mechanism by starting a cleaning mechanism to avoid affecting its heat dissipation function and improve the practicability of the equipment.

[0006] An air preheater for a heating boiler of the utility model includes a smoke inlet mechanism; it also includes a heat dissipation mechanism, a heat exchange mechanism, an air inlet mechanism, an exhaust mechanism and a cleaning mechanism. The smoke inlet mechanism is installed at the top of the heat exchange mechanism, the heat dissipation mechanism is installed inside the heat exchange mechanism, the air inlet mechanism is installed on the right side of the heat exchange mechanism, the exhaust mechanism is installed on the left side of the heat exchange mechanism, and the cleaning mechanism is installed at the top of the heat exchange mechanism; the flue gas discharged from the heating boiler is discharged into the smoke inlet mechanism, and the dust and particulate matters in the flue gas are blocked and filtered through the smoke inlet mechanism, so that the flue gas is discharged into the heat dissipation mechanism. The heat dissipation mechanism dissipates heat in the heat exchange mechanism. By starting the air inlet mechanism, the dust in the air is filtered, and after filtering, it is discharged into the heat exchange mechanism. After being dissipated by the heat dissipation mechanism, the air discharged from the air inlet mechanism is heated. When the air is heated to a certain temperature, the hot air is discharged into the heating boiler through starting the exhaust mechanism to preheat it. By starting the cleaning mechanism, the inner wall of the heat dissipation mechanism is cleaned to avoid affecting its heat dissipation function and improve the practicability of the equipment.

[0007] Preferably, the smoke inlet mechanism includes a smoke inlet pipe, a filter box, a first blocking net, a first filter element and a first air pump. The output end of the smoke inlet pipe is connected to the input end of the filter box. The first blocking net and the first filter element are both installed inside the filter box. The first filter element is located on the left side of the first blocking net. The output end of the filter box is connected to the smoke suction port of the first air pump. The smoke exhaust port of the first air pump is connected to the heat dissipation mechanism; by starting the first air pump, the flue gas is discharged into the filter box through the smoke inlet pipe. The first blocking net blocks the large particle impurities in the flue gas, and the first filter element filters the small particle impurities in the flue gas, so that the flue gas is discharged into the heat dissipation mechanism through the first air pump, improving the practicability of the equipment.

[0008] Preferably, the heat dissipation mechanism includes a tee pipe, a heat dissipation pipe, a plurality of heat absorption wire pipes and a smoke exhaust pipe. The tee pipe is provided with a plurality of input ends, and valves are respectively arranged on the plurality of input ends of the tee pipe. One input end of the tee pipe is connected to the smoke exhaust port of the first air pump. The output end of the tee pipe is connected to the input end of the heat dissipation pipe. A plurality of heat absorption wire pipes are arranged on the heat dissipation pipe. The output end of the heat dissipation pipe is connected to the input end of the smoke exhaust pipe. A valve is arranged on the smoke exhaust pipe; the flue gas is discharged into the heat dissipation pipe through the tee pipe. The plurality of heat absorption wire pipes respectively increase the heat absorption capacity of the heat dissipation pipe, improve the heat absorption force of the heat dissipation pipe for the flue gas, and the flue gas is discharged through the smoke exhaust pipe, improving the practicability of the equipment.

[0009] Preferably, the heat exchange mechanism includes a heat exchange box, a first pipeline, a second pipeline and a plurality of support columns. The output end of the first pipeline is connected to the right side wall of the heat exchange box. The input end of the second pipeline is connected to the left side wall of the heat exchange box. Valves are arranged on both the second pipeline and the support columns. The bottom end of the heat exchange box is installed on the top ends of the plurality of support columns; the cold air is discharged into the heat exchange box through the first pipeline for heat exchange, and the heat-exchanged air is discharged into the heating boiler through the second pipeline. The plurality of support columns respectively support the heat exchange box, improving the practicability of the equipment.

[0010] Preferably, the intake mechanism includes an intake hopper, a second barrier net, a third pipe, a second filter element, a second air pump, a support base, and a first bracket. The second barrier net is installed on the inner wall of the intake hopper. The output end of the intake hopper is connected to the input end of the third pipe. The second filter element is installed on the inner wall of the third pipe. The output end of the third pipe is connected to the input end of the second air pump. The bottom ends of the second air pump and the support base are both installed on the top end of the first bracket. The third pipe is installed on the top end of the support base. By starting the second air pump, air is discharged into the third pipe through the second filter element. The second barrier net blocks impurities in the air, and the second filter element filters small particulate impurities in the air, enabling the filtered air to enter the heat exchange mechanism. The support base supports the third pipe, and the first bracket supports the second air pump and the support base, improving the practicality of the device.

[0011] Preferably, the discharge mechanism includes a second bracket, a third air pump, and a fourth pipe. The bottom end of the third air pump is installed on the top end of the second bracket. The input end of the third air pump is connected to the output end of the second pipe. The output end of the third air pump is connected to the input end of the fourth pipe. The second bracket supports the third air pump. By starting the third air pump, the hot air in the heat exchange box is discharged into the third air pump through the second pipe and then discharged into the heating boiler through the fourth pipe for preheating, improving the practicality of the device.

[0012] Preferably, the cleaning mechanism includes a fifth pipe and a cleaning pump. The output end of the fifth pipe is connected to the input end of the cleaning pump. The output end of the cleaning pump is connected to the other input end of the tee. The input end of the fifth pipe is connected to the output end of the cleaning liquid. By starting the cleaning pump, the cleaning liquid is discharged into the tee through the cleaning pump to clean the inner wall of the heat dissipation pipe, improving the practicality of the device.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: The flue gas discharged from the heating boiler is discharged into the smoke inlet mechanism. The smoke inlet mechanism blocks and filters substances such as dust and particulate matter in the flue gas, enabling the flue gas to be discharged into the heat dissipation mechanism. The heat dissipation mechanism dissipates heat in the heat exchange mechanism. By starting the intake mechanism, dust in the air is filtered and then discharged into the heat exchange mechanism. After being dissipated by the heat dissipation mechanism, the air discharged from the intake mechanism is heated. When the air is heated to a certain temperature, by starting the discharge mechanism, the hot air is discharged into the heating boiler for preheating. By starting the cleaning mechanism, the inner wall of the heat dissipation mechanism is cleaned to avoid affecting its heat dissipation function and improve the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the axonometric sectional view of the present utility model;

[0015] Figure 2 is the front sectional view of the smoke inlet mechanism of the present utility model;

[0016] Figure 3 Is an axonometric schematic diagram of the heat dissipation mechanism of the present utility model;

[0017] Figure 4 Is an axonometric sectional view of the heat exchange mechanism of the present utility model;

[0018] Figure 5 Is a front sectional view of the air intake mechanism of the present utility model;

[0019] Figure 6 Is an axonometric schematic diagram of the discharge mechanism of the present utility model;

[0020] Figure 7 Is an axonometric schematic diagram of the cleaning mechanism of the present utility model.

[0021] Reference numerals in the drawings: 01, smoke inlet mechanism; 11, smoke inlet pipe; 12, filter box; 13, first blocking net; 14, first filter element; 15, first air pump; 02, heat dissipation mechanism; 21, tee pipe; 22, heat dissipation pipe; 23, heat absorption wire pipe; 24, smoke exhaust pipe; 03, heat exchange mechanism; 31, heat exchange box; 32, first pipe; 33, second pipe; 34, support column; 04, air intake mechanism; 41, air intake hopper; 42, second blocking net; 43, third pipe; 44, second filter element; 45, second air pump; 46, support seat; 47, first bracket; 05, discharge mechanism; 51, second bracket; 52, third air pump; 53, fourth pipe; 06, cleaning mechanism; 61, fifth pipe; 62, cleaning pump. Detailed implementation manners

[0022] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present utility model more thorough and comprehensive.

[0023] Embodiment 1

[0024] As Figure 1 shown, a heat supply boiler air preheater includes a smoke inlet mechanism 01; it further includes a heat dissipation mechanism 02, a heat exchange mechanism 03, an air intake mechanism 04, a discharge mechanism 05 and a cleaning mechanism 06. The smoke inlet mechanism 01 is installed at the top of the heat exchange mechanism 03, the heat dissipation mechanism 02 is installed inside the heat exchange mechanism 03, the air intake mechanism 04 is installed on the right side of the heat exchange mechanism 03, the discharge mechanism 05 is installed on the left side of the heat exchange mechanism 03, and the cleaning mechanism 06 is installed at the top of the heat exchange mechanism 03;

[0025] The flue gas discharged from the heating boiler is discharged into the smoke inlet mechanism 01. The smoke inlet mechanism 01 blocks and filters substances such as dust and particulate matter in the flue gas, so that the flue gas is discharged into the heat dissipation mechanism 02. The heat dissipation mechanism 02 dissipates heat in the heat exchange mechanism 03. By starting the air inlet mechanism 04, the dust in the air is filtered, and after filtration, it is discharged into the heat exchange mechanism 03. After being dissipated by the heat dissipation mechanism 02, the air discharged from the air inlet mechanism 04 is heated. When the air is heated to a certain temperature, by starting the discharge mechanism 05, the hot air is discharged into the heating boiler to preheat it. By starting the cleaning mechanism 06, the inner wall of the heat dissipation mechanism 02 is cleaned to avoid affecting its heat dissipation function and improve the practicability of the equipment;

[0026] As Figure 2 shown, the smoke inlet mechanism 01 includes a smoke inlet pipe 11, a filter box 12, a first blocking net 13, a first filter element 14 and a first air pump 15. The output end of the smoke inlet pipe 11 is connected to the input end of the filter box 12. Both the first blocking net 13 and the first filter element 14 are installed inside the filter box 12. The first filter element 14 is located on the left side of the first blocking net 13. The output end of the filter box 12 is connected to the smoke suction port of the first air pump 15. The smoke exhaust port of the first air pump 15 is connected to the heat dissipation mechanism 02;

[0027] By starting the first air pump 15, the flue gas is discharged into the filter box 12 through the smoke inlet pipe 11. The first blocking net 13 blocks the large particle impurities in the flue gas, and the first filter element 14 filters the small particle impurities in the flue gas, so that the flue gas is discharged into the heat dissipation mechanism 02 through the first air pump 15, improving the practicability of the equipment;

[0028] Embodiment 2

[0029] As Figures 3 to 6As shown in the figure, on the basis of Embodiment 1, it further includes a heat dissipation mechanism 02, a heat exchange mechanism 03, an air intake mechanism 04, and an exhaust mechanism 05. The heat dissipation mechanism 02 includes a tee pipe 21, a heat dissipation pipe 22, a plurality of heat absorption wire pipes 23, and a smoke exhaust pipe 24. The tee pipe 21 is provided with a plurality of input ends, and valves are respectively arranged on the plurality of input ends of the tee pipe 21. One input end of the tee pipe 21 is connected to the smoke exhaust port of the first air pump 15, the output end of the tee pipe 21 is connected to the input end of the heat dissipation pipe 22, a plurality of heat absorption wire pipes 23 are arranged on the heat dissipation pipe 22, the output end of the heat dissipation pipe 22 is connected to the input end of the smoke exhaust pipe 24, and a valve is arranged on the smoke exhaust pipe 24; the heat exchange mechanism 03 includes a heat exchange box 31, a first pipe 32, a second pipe 33, and a plurality of support columns 34. The output end of the first pipe 32 is connected to the right side wall of the heat exchange box 31, the input end of the second pipe 33 is connected to the left side wall of the heat exchange box 31, and valves are arranged on both the second pipe 33 and the support columns 34. The bottom end of the heat exchange box 31 is installed on the top ends of the plurality of support columns 34; the air intake mechanism 04 includes an air intake hopper 41, a second blocking net 42, a third pipe 43, a second filter element 44, a second air pump 45, a support seat 46, and a first bracket 47. The second blocking net 42 is installed on the inner wall of the air intake hopper 41, the output end of the air intake hopper 41 is connected to the input end of the third pipe 43, the second filter element 44 is installed on the inner wall of the third pipe 43, the output end of the third pipe 43 is connected to the input end of the second air pump 45, the bottom ends of the second air pump 45 and the support seat 46 are both installed on the top end of the first bracket 47, and the third pipe 43 is installed on the top end of the support seat 46; the exhaust mechanism 05 includes a second bracket 51, a third air pump 52, and a fourth pipe 53. The bottom end of the third air pump 52 is installed on the top end of the second bracket 51, the input end of the third air pump 52 is connected to the output end of the second pipe 33, and the output end of the third air pump 52 is connected to the input end of the fourth pipe 53;

[0030] The flue gas is discharged into the heat dissipation pipe 22 through the tee pipe 21. The plurality of heat absorption wire pipes 23 respectively increase the heat absorption capacity of the heat dissipation pipe 22, improve the heat absorption force of the heat dissipation pipe 22 for the flue gas, and the flue gas is discharged through the smoke exhaust pipe 24. The cold air is discharged into the heat exchange box 31 through the first pipe 32 for heat exchange, and the heat-exchanged air is discharged into the heating boiler through the second pipe 33. The plurality of support columns 34 respectively support the heat exchange box 31. By starting the second air pump 45, the air is discharged into the third pipe 43 through the second filter element 44. The second blocking net 42 blocks the impurities in the air, and the second filter element 44 filters the small particle impurities in the air, so that the filtered air enters the heat exchange mechanism 03. The support seat 46 supports the third pipe 43, the first bracket 47 supports the second air pump 45 and the support seat 46, and the second bracket 51 supports the third air pump 52. By starting the third air pump 52, the hot air in the heat exchange box 31 is discharged into the third air pump 52 through the second pipe 33 and is discharged into the heating boiler through the fourth pipe 53 for preheating, improving the practicability of the equipment.

[0031] Example 3

[0032] As Figure 7 shown, on the basis of Example 1, it further includes a cleaning mechanism 06. The cleaning mechanism 06 includes a fifth pipeline 61 and a cleaning pump 62. The output end of the fifth pipeline 61 is connected to the input end of the cleaning pump 62, and the output end of the cleaning pump 62 is connected to the other input end of the three-way pipe 21;

[0033] The input end of the fifth pipeline 61 is connected to the output end of the cleaning liquid. By starting the cleaning pump 62, the cleaning liquid is discharged into the three-way pipe 21 through the cleaning pump 62 to clean the inner wall of the heat dissipation pipe 22, improving the practicability of the equipment.

[0034] As Figures 1 to 1 shown, for a heat supply boiler air preheater of the present utility model, when it works, first, by starting the first air pump 15, the flue gas is discharged into the filtering box 12 through the smoke inlet pipe 11. The first blocking net 13 blocks large particle impurities in the flue gas, and the first filter element 14 filters small particle impurities in the flue gas, so that the flue gas is discharged into the heat dissipation mechanism 02 through the first air pump 15. Then the flue gas is discharged into the heat dissipation pipe 22 through the three-way pipe 21. Multiple heat absorption wire pipes 23 respectively increase the heat absorption capacity of the heat dissipation pipe 22, improving the heat absorption force of the heat dissipation pipe 22 for the flue gas. The flue gas is discharged through the exhaust pipe 24. After that, the cold air is discharged into the heat exchange box 31 through the first pipeline 32 for heat exchange. The heat-exchanged air is discharged into the heat supply boiler through the second pipeline 33. Multiple support columns 34 respectively support the heat exchange box 31. Then, by starting the second air pump 45, the air is discharged into the third pipeline 43 through the second filter element 44. The second blocking net 42 blocks impurities in the air, and the second filter element 44 filters small particle impurities in the air, so that the filtered air enters the heat exchange mechanism 03. The support seat 46 supports the third pipeline 43, and the first support 47 supports the second air pump 45 and the support seat 46. After that, the second support 51 supports the third air pump 52. By starting the third air pump 52, the hot air in the heat exchange box 31 is discharged into the third air pump 52 through the second pipeline 33 and is discharged into the heat supply boiler through the fourth pipeline 53 for preheating. Finally, the input end of the fifth pipeline 61 is connected to the output end of the cleaning liquid. By starting the cleaning pump 62, the cleaning liquid is discharged into the three-way pipe 21 through the cleaning pump 62 to clean the inner wall of the heat dissipation pipe 22, improving the practicability of the equipment.

[0035] The first air pump 15, the second air pump 45, the third air pump 52 and the cleaning pump 62 of the present utility model are purchased on the market. Those skilled in the industry only need to install and operate them according to the attached operation manuals, without the need for creative labor from those skilled in the art.

[0036] The main functions achieved by the present utility model are as follows: By starting the intake mechanism 04, the dust in the air is filtered, and after filtration, it is discharged into the heat exchange mechanism 03. After being cooled by the heat dissipation mechanism 02, the air discharged from the intake mechanism 04 is heated. By starting the discharge mechanism 05, the hot air is discharged into the heating boiler for preheating. By starting the cleaning mechanism 06, the inner wall of the heat dissipation mechanism 02 is cleaned to avoid affecting its heat dissipation function and improve the practicability of the equipment.

[0037] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A heating boiler air preheater, comprising a smoke inlet mechanism (01); characterized in that: The smoke inlet mechanism (01) is installed at the top of the heat exchange mechanism (03), the smoke inlet mechanism (02) is installed inside the heat exchange mechanism (03), the smoke inlet mechanism (04) is installed on the right side of the heat exchange mechanism (03), the smoke inlet mechanism (05) is installed on the left side of the heat exchange mechanism (03), and the smoke inlet mechanism (06) is installed at the top of the heat exchange mechanism (03).

2. The air preheater for a heating boiler according to claim 1, characterized in that: The smoke inlet mechanism (01) comprises a smoke inlet pipe (11), a filter box (12), a first blocking net (13), a first filter element (14) and a first air pump (15); the output end of the smoke inlet pipe (11) is connected to the input end of the filter box (12); the first blocking net (13) and the first filter element (14) are both installed inside the filter box (12); the first filter element (14) is located on the left side of the first blocking net (13); the output end of the filter box (12) is connected to the inhalation port of the first air pump (15); and the smoke exhaust port of the first air pump (15) is connected to the heat dissipation mechanism (02).

3. The air preheater for a heating boiler according to claim 2, characterized in that: The heat dissipation mechanism (02) comprises a three-way pipe (21), a heat dissipation pipe (22), a plurality of heat-absorbing wire pipes (23) and a smoke exhaust pipe (24). The three-way pipe (21) is provided with a plurality of input ends. Valves are respectively provided on the plurality of input ends of the three-way pipe (21). One input end of the three-way pipe (21) is connected to the smoke exhaust port of the first air pump (15). The output end of the three-way pipe (21) is connected to the input end of the heat dissipation pipe (22). The heat dissipation pipe (22) is provided with a plurality of heat-absorbing wire pipes (23). The output end of the heat dissipation pipe (22) is connected to the input end of the smoke exhaust pipe (24). The smoke exhaust pipe (24) is provided with a valve.

4. The air preheater for a heating boiler according to claim 1, characterized in that: The heat exchange mechanism (03) comprises a heat exchange box (31), a first pipe (32), a second pipe (33) and a plurality of support columns (34); the output end of the first pipe (32) is connected to the right side wall of the heat exchange box (31); the input end of the second pipe (33) is connected to the left side wall of the heat exchange box (31); valves are provided on the second pipe (33) and the support columns (34); and the bottom end of the heat exchange box (31) is mounted on the top ends of the plurality of support columns (34).

5. The air preheater for a heating boiler according to claim 1, characterized in that: The air intake mechanism (04) comprises an air intake hopper (41), a second blocking net (42), a third pipeline (43), a second filter element (44), a second air pump (45), a support seat (46) and a first bracket (47). The second blocking net (42) is mounted on the inner wall of the air intake hopper (41), the output end of the air intake hopper (41) is connected to the input end of the third pipeline (43), the second filter element (44) is mounted on the inner wall of the third pipeline (43), the output end of the third pipeline (43) is connected to the input end of the second air pump (45), the bottom ends of the second air pump (45) and the support seat (46) are both mounted on the top end of the first bracket (47), and the third pipeline (43) is mounted on the top end of the support seat (46).

6. The air preheater for a heating boiler according to claim 4, characterized in that: The discharge mechanism (05) comprises a second bracket (51), a third air pump (52) and a fourth pipeline (53), wherein the bottom end of the third air pump (52) is mounted on the top end of the second bracket (51), the input end of the third air pump (52) is connected to the output end of the second pipeline (33), and the output end of the third air pump (52) is connected to the input end of the fourth pipeline (53).

7. The air preheater for a heating boiler according to claim 3, characterized in that: The cleaning mechanism (06) comprises a fifth pipeline (61) and a cleaning pump (62), wherein the output end of the fifth pipeline (61) is connected to the input end of the cleaning pump (62), and the output end of the cleaning pump (62) is connected to the other input end of the three-way pipe (21).

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