Structure of four-mode boiler

Abstract

The utility model relates to the technical field of boilers, in particular to a four-mode boiler structure which comprises a boiler body, a smoke outlet and an ash outlet. A smoke outlet is welded to the middle of the top end of the boiler body, and ash discharging openings are formed in the middles of the left side and the right side of the boiler body. The furnace doors are mounted at the lower parts of the left and right sides of the boiler main body and are positioned at the two ends of the hearth; the gas pipes are welded to the middle positions of the inner walls of the front end and the rear end of the boiler body, and a plurality of gas nozzles are evenly welded to the gas pipes in a transverse interval arrangement mode. Through the improvement on the structure, the boiler has the advantages of hearth dry burning prevention function, effective improvement of the service life of the hearth, high heat energy utilization rate, higher practical performance, higher practical value and the like, so that the problems and defects in the prior art and equipment are effectively solved and overcome.

Description

Technical Field

[0001] This utility model relates to the field of boiler technology, and more specifically, to the structure of a four-way boiler. Background Technology

[0002] A boiler continuously releases heat through fuel combustion. The high-temperature flue gas produced by combustion transfers heat to the boiler's heating surfaces through heat transfer, heating the water in the boiler into hot water or generating steam at a certain temperature and pressure, which is then drawn out for use.

[0003] However, some shortcomings have been found in the current boilers after use. For example, the furnace is made of only one layer of refractory bricks, which can easily cause cracking due to long-term dry burning. Furthermore, the heat generated during combustion in the furnace is not effectively utilized, and the direct emission of incompletely burned flue gas can easily cause environmental pollution and heat loss, thus greatly reducing the practical performance.

[0004] In view of this, we have studied and improved the existing problems and provided a four-way boiler structure, aiming to solve the problems and improve its practical value through this technology. Utility Model Content

[0005] The purpose of this utility model is to provide a four-way boiler structure to solve the problems and deficiencies mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides a four-way boiler structure, which is accomplished by the following specific technical means:

[0007] A four-way boiler structure includes: a boiler body, a flue gas outlet, an ash discharge outlet, a furnace door, a gas pipe, a gas nozzle, a furnace, a lower boiler, a return water pump, a baffle plate, an upper boiler, a steam pipe, a furnace eaves, and a water inlet; a flue gas outlet is welded to the middle position of the top of the boiler body, and ash discharge outlets are installed at the middle positions of the left and right sides of the boiler body; the furnace door is installed at the lower part of the left and right sides of the boiler body, and the furnace door is located at both ends of the furnace; the gas pipe is welded to the middle position of the inner wall of the front and rear ends of the boiler body, and the gas pipe is uniformly welded in a horizontally spaced manner. The boiler has multiple gas nozzles; the furnace is welded to the bottom of the boiler body; the lower boiler is welded to the lower part of the boiler body, and a return water pump is installed through the lower boiler and the furnace; the partition is welded to the middle of the boiler body, and the partition is located between the lower boiler and the upper boiler; the upper boiler is welded to the upper part of the boiler body, and steam pipes are welded to the upper parts of the upper boiler and the lower boiler; the grate is distributed in a figure-eight shape and welded to both sides of the inner wall of the top of the boiler body; the water inlet is welded to one end of the furnace, the lower boiler, and the upper boiler.

[0008] As a further optimization of this technical solution, the structure of the four-way boiler of this utility model has a furnace that is rectangular in top view and "U" in side view, and the interior of the furnace is a hollow structure.

[0009] As a further optimization of this technical solution, the partition of the four-way boiler of this utility model is a rectangular wide-mouth structure with a rectangular hole in the middle.

[0010] As a further optimization of this technical solution, the structure of the four-way boiler of this utility model is such that the gas pipe and the gas nozzle are welded into a comb-like structure, and the gas pipe is located on both sides of the lower part of the upper boiler.

[0011] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0012] 1. The present invention relates to a four-way boiler structure, which sets the furnace chamber into a hollow structure that is rectangular when viewed from above and “U”-shaped when viewed from the side. This allows cold water to be added into the furnace chamber to prevent dry burning, thus significantly improving the service life of the furnace chamber and further enhancing the practical performance of the device.

[0013] 2. The present invention relates to a four-way boiler structure. By injecting cold water into the furnace, it can not only prevent dry burning, but also heat the cold water and inject it into the boiler to improve thermal efficiency, making it more practical.

[0014] 3. The structure of the four-way boiler of this utility model uses baffles to move the flue gas from the furnace upward and spray natural gas through the gas nozzle, which can perform secondary combustion on the unburned substances in the flue gas, avoiding flue gas pollution to the environment. At the same time, the combustion can heat the upper boiler, further improving thermal efficiency, thus making the device more practical.

[0015] 4. Through structural improvements to the above-mentioned device, this utility model has the function of preventing dry burning of the furnace, effectively improving the service life of the furnace, and has a high thermal energy utilization rate, making it more practical and valuable, thereby effectively solving the problems and shortcomings in the existing technology and equipment. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 This is a front cross-sectional view of the present invention.

[0018] Figure 2This is a side sectional view of the present invention.

[0019] Figure 3 This is a top sectional view of the present invention.

[0020] Figure 4 This is a schematic diagram of the left-side structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the right-side structure of this utility model.

[0022] In the diagram: 1. Boiler body; 2. Flue gas outlet; 3. Ash outlet; 4. Furnace door; 5. Gas pipe; 6. Gas nozzle; 7. Furnace chamber; 8. Lower boiler; 9. Return water pump; 10. Baffle plate; 11. Upper boiler; 12. Steam pipe; 13. Furnace eaves; 14. Water inlet. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Please see Figures 1 to 5 This utility model provides a specific technical implementation scheme for a four-way boiler structure:

[0025] A four-way boiler structure includes: a boiler body 1, a flue gas outlet 2, an ash discharge outlet 3, a furnace door 4, a gas pipe 5, a gas nozzle 6, a furnace 7, a lower boiler 8, a return water pump 9, a baffle plate 10, an upper boiler 11, a steam pipe 12, a furnace eaves 13, and a water inlet 14; the flue gas outlet 2 is welded to the middle position of the top of the boiler body 1, and the ash discharge outlets 3 are installed at the middle positions of the left and right sides of the boiler body 1; the furnace door 4 is installed at the lower part of the left and right sides of the boiler body 1, and the furnace door 4 is located at both ends of the furnace 7; the gas pipes 5 are welded to the middle positions of the front and rear inner walls of the boiler body 1, and the gas pipes 5 are arranged in a horizontally spaced manner. Multiple gas nozzles 6 are uniformly welded; the furnace 7 is welded to the bottom of the boiler body 1; the lower boiler 8 is welded to the lower part of the boiler body 1, and a return water pump 9 is installed through the lower boiler 8 and the furnace 7; the baffle 10 is welded to the middle part of the boiler body 1, and the baffle 10 is located between the lower boiler 8 and the upper boiler 11; the upper boiler 11 is welded to the upper part of the boiler body 1, and a steam pipe 12 is welded to the upper part of the upper boiler 11 and the lower boiler 8; the furnace eaves are distributed in a figure-eight shape and welded to both sides of the inner wall of the top of the boiler body 1; the water inlet 14 is welded to one end of the furnace 7, the lower boiler 8 and the upper boiler 11 respectively.

[0026] Specifically, the furnace 7 is rectangular when viewed from above and "U" shaped when viewed from the side. The interior of the furnace 7 is hollow and the surface is covered with a layer of refractory bricks. Cold water is injected into the furnace 7 through the water inlet 14 to prevent dry burning. After the water is heated, the hot water is discharged into the lower boiler 8 through the return water pump 9 to improve thermal efficiency.

[0027] Specifically, the baffle 10 is a rectangular wide-mouth structure with a rectangular hole in the middle. After collecting the flue gas generated by the combustion of the furnace 7, the baffle 10 is discharged from the rectangular hole in the middle and then used to carry out secondary combustion with the natural gas flame sprayed by the gas nozzle 6, so that the combustion is more complete and the pollution to the environment is reduced.

[0028] Specifically, the gas pipe 5 and the gas nozzle 6 are welded into a comb-like structure, and the gas pipe 5 is located on both sides of the lower part of the upper boiler 11. The gas pipe 5 can be connected to natural gas, so that the gas nozzle 6 can perform secondary combustion on the flue gas rising below. At the same time, the combustion also heats the upper boiler 11, improving the steam thermal energy efficiency.

[0029] Specific implementation steps:

[0030] When using this device, first, cold water is added to the furnace 7, the lower boiler 8, and the upper boiler 11. Then, biomass fuel is added to the furnace 7 through the furnace door 4 to start combustion and heating. After the hot water in the furnace 7 is heated, it can be added to the lower boiler 8 through the return water pump 9 to improve the thermal efficiency of the steam. During this period, cold water is injected into the furnace 7 to prevent dry burning. The flue gas will be used for secondary combustion with natural gas through the gas nozzle 6 to make the impurities in the flue gas burn more completely. At the same time, the upper boiler 11 is heated, which also improves the thermal efficiency of the steam. Finally, the flue gas is discharged from the exhaust port 2.

[0031] In summary, this four-way boiler structure, by setting the furnace to a hollow structure with a rectangular shape when viewed from above and a "U" shape when viewed from the side, allows for the addition of cold water into the furnace to prevent dry burning, significantly extending the furnace's service life and further enhancing the device's practicality. Injecting cold water into the furnace not only prevents dry burning but also allows the heated cold water to be injected into the lower boiler, improving thermal efficiency and enhancing its practical value. Furthermore, by using baffles to move the flue gas from the furnace upwards and expelling it through gas nozzles as natural gas, unburned substances in the flue gas can undergo secondary combustion, preventing environmental pollution. Simultaneously, the combustion process heats the upper boiler, further improving thermal efficiency and thus enhancing the device's practicality, solving the problems existing in the prior art.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A structure for a four-way boiler, comprising: The boiler body (1), flue gas outlet (2), ash outlet (3), furnace door (4), gas pipe (5), gas nozzle (6), furnace (7), lower boiler (8), return water pump (9), partition (10), upper boiler (11), steam pipe (12), furnace eaves (13), and water inlet (14) are characterized in that: a flue gas outlet (2) is welded to the middle position of the top of the boiler body (1), and an ash outlet (3) is installed at the middle position of the left and right sides of the boiler body (1); the furnace door (4) is installed at the lower position of the left and right sides of the boiler body (1), and the furnace door (4) is located at both ends of the furnace (7); the gas pipe (5) is welded to the middle position of the front and rear inner walls of the boiler body (1), and multiple gas pipes (5) are evenly welded in a horizontally spaced manner. The gas nozzle (6) is located at the bottom of the boiler body (1); the furnace (7) is welded to the bottom of the boiler body (1); the lower boiler (8) is welded to the lower part of the boiler body (1), and a return water pump (9) is installed between the lower boiler (8) and the furnace (7); the partition (10) is welded to the middle part of the boiler body (1), and the partition (10) is located between the lower boiler (8) and the upper boiler (11); the upper boiler (11) is welded to the upper part of the boiler body (1), and a steam pipe (12) is welded to the upper part of the upper boiler (11) and the lower boiler (8); the eaves are distributed in a figure-eight shape and welded to both sides of the inner wall of the top of the boiler body (1); the water inlet (14) is welded to one end of the furnace (7), the lower boiler (8), and the upper boiler (11).

2. The structure of a four-way boiler according to claim 1, characterized in that: The furnace chamber (7) is rectangular when viewed from above and "U" shaped when viewed from the side, and the interior of the furnace chamber (7) is hollow.

3. The structure of a four-way boiler according to claim 1, characterized in that: The partition (10) is a rectangular wide-mouth structure with a rectangular hole in the middle.

4. The structure of a four-way boiler according to claim 1, characterized in that: The gas pipe (5) is welded to the gas nozzle (6) into a comb-like structure, and the gas pipe (5) is located on both sides of the lower part of the upper boiler (11).

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