Novel boiler

Abstract

The utility model relates to the technical field of boiler equipment, in particular to a novel boiler. The boiler comprises a boiler shell and supporting legs fixed to the two ends of the bottom of the boiler shell, a water storage inner cavity is formed in the inner side of the boiler shell, an exhaust port is fixed to the top of the boiler shell, and a negative pressure combustion mechanism is assembled on the inner side of the boiler shell. By means of the structural design of the negative pressure combustion mechanism and the liquid level control mechanism, the problem that danger is generated due to the fact that flames of a traditional boiler are combusted upwards through combustion supporting of a draught fan is solved, the problems of outward fire spitting, outward smoke discharging and outward ash fleeing are avoided, some unnecessary fire accidents can be effectively avoided, and the energy-saving and environment-friendly effects are achieved. And meanwhile, the personal safety and property safety of a user are protected to the maximum extent, so that the advantages of no waste of hot water, fuel saving, high steam temperature, low temperature of tail smoke of a smoke pipe, full combustion, no smoke and high heat energy utilization rate are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler equipment, in particular to a new type of boiler. Background Art

[0002] A boiler is a kind of energy conversion equipment. The energy input to the boiler is in the form of chemical energy in the fuel, electrical energy, thermal energy of high-temperature flue gas, etc. After conversion by the boiler, it outputs steam, high-temperature water or organic heat carrier with a certain amount of thermal energy. The hot water or steam generated in the boiler can directly provide the required thermal energy for industrial production and people's lives, or it can be converted into mechanical energy through a steam power device, or the mechanical energy can be converted into electrical energy through a generator.

[0003] At present, steam boilers are suitable for the following industries:

[0004] Pharmaceutical industry. The pharmaceutical industry is a major industry field that frequently uses steam boilers in the manufacturing industry. Generally speaking, hospitals and pharmaceuticals need to use them. Hospitals mostly use steam to effectively disinfect various medical machines or wards, and the pharmaceutical industry can not only effectively dry and disinfect, but also use steam boilers for decoction processing.

[0005] Food processing field. Steam boilers are often used to assist in food processing, especially in biscuit, bread or meat processing factories. Steam boilers can effectively sterilize, dry, mature and distill food during food processing, allowing various foods to be effectively processed into finished products under the influence of high-temperature steam heat.

[0006] Other processing areas. Steam boilers are often used to assist in food processing, especially in biscuit, bread or meat processing factories. Steam boilers can be used to effectively sterilize, dry, mature and distill food during food processing, allowing various foods to be effectively processed under the influence of high-temperature steam heat. It is mainly used for heating bread baking equipment, biscuit baking equipment, candy production equipment, grain drying equipment, edible oil pressing and refining equipment, distillation pots, autoclaves, and conveyor belt dryers.

[0007] In the food industry, high-temperature steam is used to cook, dry, and disinfect food; pharmaceutical companies need a large amount of steam to sterilize and disinfect raw materials, equipment, and equipment at high temperatures, and to provide heat in the drying, cooling, tableting, and granulation stages; school and hotel boilers are configured with steam or hot water boilers, which are heated by plate heat exchangers and sanitary hot water by volumetric heat exchangers; in the rubber industry, thermal oil furnaces are also used for heating and heat preservation of calendering, extrusion, kneading, mixing, vulcanization molding, injection molding machines, glue mixers, conveyor belt dryers, screw extruders, and molds. In addition, industrial boilers are required to provide heat support in the papermaking, heating, cable industry, brewing, chemical, feed, tobacco, printing and dyeing, and nonferrous metal industries. In the construction and building materials industry, this type of steam boiler is mainly used for drying gypsum boards, solidification protection and prefabrication of concrete components, tile molding, drying of decorative materials, and heating of roofing felt production lines. In road construction projects, it is mainly used for heating and dissolving asphalt, heating and heat preservation of asphalt storage tanks, asphalt concrete, and emulsified asphalt. In metallurgy, mechanical processing and foundry industries, it is mainly used for heating metal degreasing tanks, Dewar tanks, pickling tanks, cleaning tanks, electroplating tanks, Luyang plate oxidation tanks, electrode manufacturing, shower heat treatment equipment, phosphate treatment equipment, baking room, sand core drying, varnish spraying and drying, and assembly processing equipment.

[0008] At present, the current boilers are all flame-upward combustion mode, and adding fuel makes the temperature very high, which poses a risk of scalding and burns to operators. The existing boilers on the market are basically not very perfect in steam drying, and the steam humidity is high. A lot of evaporated gas needs to be used in a steam water separator, and conventional steam water separators separate steam and water and then the gas is used, but the excess water is discharged through the steam trap, wasting the heat energy of hot water. For this reason, we propose a new type of boiler. Utility Model Content

[0009] The purpose of the utility model is to provide a new type of boiler to solve the problems raised in the above background technology.

[0010] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0011] A novel boiler comprises a boiler shell and supporting feet fixed at both ends of the bottom of the boiler shell, a water storage cavity is arranged on the inner side of the boiler shell, a discharge port is fixed on the top of the boiler shell, a negative pressure combustion mechanism is equipped on the inner side of the boiler shell, and the negative pressure combustion mechanism comprises a first ash cleaning port, a furnace door, a through pipe, a second ash cleaning port, a first fuel port, a first combustion chamber, a second combustion chamber, a second fuel port and an auxiliary combustion assembly, two first ash cleaning ports are fixed in the middle of the inner side of the boiler shell, a plurality of through pipes are evenly fixed at the bottom of the first ash cleaning port, two second ash cleaning ports are fixed at the bottom of the inner side of the boiler shell, the second ash cleaning ports are fixed to the through pipes, one end of the second ash cleaning port and the first ash cleaning port are both provided with a furnace door, a first combustion chamber and a second combustion chamber are fixed at one end of the boiler shell, the inner sides of the first combustion chamber and the second combustion chamber are both connected with the through pipe, the first combustion chamber and the second combustion chamber are fixed in an integrated manner, a first fuel port is arranged on the top of the first combustion chamber, a second fuel port is arranged at one end of the first combustion chamber, and an auxiliary combustion assembly is equipped on the top of the boiler shell.

[0012] Preferably, the auxiliary combustion assembly includes a negative pressure fan and a vertical pipe, a negative pressure fan is fixed to one end of the top of the boiler casing, a vertical pipe is fixed to the input end of the negative pressure fan, the vertical pipe is fixed to the inner side of the boiler casing, a connecting box is fixed to the bottom of the vertical pipe, and a plurality of through pipes are also evenly fixed to the bottom of the connecting box.

[0013] Preferably, a pressure gauge is fixed on the top of the boiler shell and close to the discharge port.

[0014] Preferably, a cover plate is provided on the top of the first fuel port.

[0015] Preferably, a liquid level control mechanism is installed on one side of the boiler shell, and the liquid level control mechanism is used to control the liquid level in the water storage cavity.

[0016] Preferably, the liquid level control mechanism includes an automatic constant pressure water inlet auxiliary water tank, a connecting pipe, a float and a water inlet. The automatic constant pressure water inlet auxiliary water tank is fixed on one side of the boiler shell, and connecting pipes are fixed on the top and bottom of the automatic constant pressure water inlet auxiliary water tank. One end of the connecting pipe passes through the boiler shell and is connected with the water storage cavity. A float is arranged on the inner side of the automatic constant pressure water inlet auxiliary water tank, and a water inlet is arranged at one end of the automatic constant pressure water inlet auxiliary water tank.

[0017] Preferably, a safety valve is fixed on the top of the boiler shell and at a position away from the discharge port.

[0018] Preferably, a first steam-water separation baffle and a second steam-water separation baffle are fixed to the top of the inner side of the water storage cavity, and one end of the first steam-water separation baffle and the second steam-water separation baffle are both inclined downward.

[0019] It can be seen without a doubt that the above-mentioned technical solution of the present application can definitely solve the technical problem to be solved by the present application.

[0020] At the same time, through the above technical solutions, the utility model has at least the following beneficial effects:

[0021] The utility model solves the problem of the danger of the traditional boiler flame burning upward with the help of the fan through the structural design of the negative pressure combustion mechanism and the liquid level control mechanism, avoids the problems of outward flame, outward smoke and outward ash leakage, can effectively avoid some unnecessary fire accidents, and at the same time protect the personal safety and property safety of the users to the greatest extent, thereby achieving the advantages of no waste of hot water, fuel saving, high steam temperature, low smoke temperature of the smoke pipe tail, full combustion without smoke, and high thermal energy utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

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

[0024] Figure 2 It is a schematic diagram of the cutaway structure of the boiler shell of the utility model;

[0025] Figure 3 It is a schematic diagram of the connection structure between the boiler shell and the automatic constant pressure water inlet auxiliary water tank of the utility model;

[0026] Figure 4 It is a schematic diagram of the cutaway structure of the automatic constant pressure water inlet auxiliary water tank of the utility model.

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] In the figure: 1. boiler shell; 2. supporting feet; 3. water storage cavity; 4. discharge port; 5. first ash cleaning port; 6. furnace door; 7. through pipe; 8. second ash cleaning port; 9. negative pressure fan; 10. vertical pipe; 11. pressure gauge; 12. first fuel port; 13. cover plate; 14. automatic constant pressure water inlet auxiliary water tank; 15. connecting pipe; 16. float; 17. safety valve; 18. first combustion chamber; 19. second combustion chamber; 20. water inlet; 21. second fuel port; 22. first steam-water separation baffle; 23. second steam-water separation baffle. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0030] Example 1

[0031] Reference Figure 1-2 A novel boiler comprises a boiler shell 1, and support legs 2 fixed at both ends of the bottom of the boiler shell 1, a water storage cavity 3 is arranged on the inner side of the boiler shell 1, a discharge port 4 is fixed on the top of the boiler shell 1, and a negative pressure combustion mechanism is arranged on the inner side of the boiler shell 1, and the negative pressure combustion mechanism comprises a first ash cleaning port 5, a furnace door 6, a through pipe 7, a second ash cleaning port 8, a first fuel port 12, a first combustion chamber 18, a second combustion chamber 19, a second fuel port 21 and an auxiliary combustion assembly, two first ash cleaning ports 5 are fixed in the middle of the inner side of the boiler shell 1, and a plurality of through pipes 7 are evenly fixed on the bottom of the first ash cleaning port 5. Tube 7, two second ash cleaning ports 8 are fixed to the bottom of the inner side of the boiler shell 1, and the second ash cleaning ports 8 are fixed to the through pipe 7, and one end of the second ash cleaning port 8 and the first ash cleaning port 5 are provided with a furnace door 6, and a first combustion chamber 18 and a second combustion chamber 19 are fixed to one end of the boiler shell 1, and the inner sides of the first combustion chamber 18 and the second combustion chamber 19 are connected to the through pipe 7, and the first combustion chamber 18 and the second combustion chamber 19 are fixed in one piece, and a first fuel port 12 is provided at the top of the first combustion chamber 18, and a second fuel port 21 is provided at one end of the first combustion chamber 18, and an auxiliary combustion component is assembled on the top of the boiler shell 1.

[0032] The auxiliary combustion component includes a negative pressure fan 9 and a vertical pipe 10. The negative pressure fan 9 is fixed at one end of the top of the boiler shell 1, and the vertical pipe 10 is fixed at the input end of the negative pressure fan 9. The vertical pipe 10 is fixed to the inner side of the boiler shell 1, and a connecting box is fixed at the bottom of the vertical pipe 10. A plurality of through pipes 7 are also evenly fixed at the bottom of the connecting box. When the negative pressure fan 9 is started, the input end of the negative pressure fan 9 draws out the air in the vertical pipe 10, so that the through pipe 7, the first combustion chamber 18 and the second combustion chamber 19 generate negative air pressure to achieve negative pressure combustion. Through the setting of the through pipe 7, the first combustion chamber 18, the second combustion chamber 19, the through pipe 7 and the vertical pipe 10 form a complete passage, which is convenient for the firepower to be downwardly negative pressure combustion.

[0033] A pressure gauge 11 is fixed on the top of the boiler shell 1 and near the discharge port 4. The pressure gauge 11 is arranged to facilitate monitoring of the inner pressure of the water storage cavity 3 and to facilitate opening or closing the discharge port 4 as needed.

[0034] A cover plate 13 is provided on the top of the first fuel port 12. After the cover plate 13 is opened, when negative pressure combustion is performed in the first combustion chamber 18 and the second combustion chamber 19, external air enters through the first fuel port 12 to supply air.

[0035] A safety valve 17 is fixed at the top of the boiler shell 1 and at a position away from the discharge port 4. A first steam-water separation baffle 22 and a second steam-water separation baffle 23 are fixed at the top of the inner side of the water storage cavity 3. One end of the first steam-water separation baffle 22 and the second steam-water separation baffle 23 are both tilted downward. The first steam-water separation baffle 22 and the second steam-water separation baffle 23 are tilted to allow the water in the steam to fall naturally under the influence of gravity, thereby achieving a steam-water separation effect.

[0036] Example 2

[0037] Embodiment 1 is further optimized, specifically, as Figure 3-4 As shown, a liquid level control mechanism is installed on one side of the boiler shell 1, and the liquid level control mechanism is used to control the liquid level in the water storage cavity 3.

[0038] The liquid level control mechanism includes an automatic constant pressure water inlet auxiliary water tank 14, a connecting pipe 15, a float 16 and a water inlet 20. The automatic constant pressure water inlet auxiliary water tank 14 is fixed on one side of the boiler shell 1. The top and bottom of the automatic constant pressure water inlet auxiliary water tank 14 are fixed with connecting pipes 15. One end of the connecting pipe 15 passes through the boiler shell 1 and is connected with the water storage cavity 3. A float 16 is arranged on the inner side of the automatic constant pressure water inlet auxiliary water tank 14, and a water inlet 20 is arranged at one end of the automatic constant pressure water inlet auxiliary water tank 14. By utilizing the buoyancy principle of water, the float 16 rises when the liquid level is high and falls when the liquid level is low through a water pump or pressurized tap water, so as to realize automatic control of the water intake, realize precise control of the amount of water to be replenished according to the lack of water, and realize that the water intake will not affect the steam output. In terms of energy saving, more than 68% of thermal energy can be saved compared with traditional boilers.

[0039] From the above, we can know that:

[0040] The utility model is aimed at the following technical problems: Currently, current boilers all use an upward flame combustion mode, and adding fuel makes the temperature very high, which poses a risk of scalding and burns to operators. Existing boilers on the market are basically not very perfect in terms of steam drying, and the steam humidity is high. A lot of evaporated gas needs to be used in a steam-water separator, and conventional steam-water separators separate steam and water and then the gas is utilized, but the excess water is drained through the steam trap, wasting the thermal energy of the hot water; the technical solutions of the above embodiments are adopted. At the same time, the implementation process of the above technical solution is:

[0041] When in use, fuel is added through the first fuel port 12 and the second fuel port 21 for combustion, and then the negative pressure fan 9 is started. The input end of the negative pressure fan 9 draws out the air in the vertical pipe 10, so that the through pipe 7, the first combustion chamber 18 and the second combustion chamber 19 generate negative air pressure, so that the firepower is downward, and negative pressure combustion is achieved. At the same time, the heat generated in the first combustion chamber 18 and the second combustion chamber 19 is transmitted to the through pipe 7, so that the water on the outside of the through pipe 7 is heated and the subsequently generated steam rises upward, and after encountering the first steam-water separation baffle 22 and the second steam-water separation baffle 23, the first steam-water separation baffle 22 and the second steam-water separation baffle 23 are tilted to allow the moisture in the steam to fall naturally under the influence of gravity, thereby achieving a steam-water separation effect, allowing the moisture to be retained in the water storage cavity 3 for secondary utilization, thereby achieving an energy-saving effect. At the same time, the tail smoke passes through the vertical pipe 10 and is finally discharged through the output end of the negative pressure fan 9.

[0042] Since the device is small in size, the volume of the same evaporation capacity is only 1 / 4 of that of a traditional boiler. By using multi-tube return heating, the combustion temperature of the combustion material can be increased by 80% again after secondary heating. This design solves the problem of insufficient calorific value of burning firewood and other fuels with lower calorific value than coal. The connection between the first combustion chamber 18 and the second combustion chamber 19 can more than double the calorific value of some low calorific value fuels such as wood corn cob particles. At the same time, some moist fuel can be put in, and burned while drying, so that some waste materials can be turned into treasure, energy saving can be achieved, and safety is higher.

[0043] Through the above configuration, the present application can certainly solve the above technical problems and achieve the following technical effects:

[0044] The utility model solves the problem of the danger of the traditional boiler flame burning upward with the help of the fan through the structural design of the negative pressure combustion mechanism and the liquid level control mechanism, avoids the problems of outward flame, outward smoke and outward ash leakage, can effectively avoid some unnecessary fire accidents, and at the same time protect the personal safety and property safety of the users to the greatest extent, thereby achieving the advantages of no waste of hot water, fuel saving, high steam temperature, low smoke temperature of the smoke pipe tail, full combustion without smoke, and high thermal energy utilization rate.

[0045] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A new type of boiler, characterized in that: The invention comprises a boiler shell (1) and supporting legs (2) fixed at both ends of the bottom of the boiler shell (1); a water storage cavity (3) is arranged on the inner side of the boiler shell (1); a discharge port (4) is fixed on the top of the boiler shell (1); a negative pressure combustion mechanism is arranged on the inner side of the boiler shell (1); the negative pressure combustion mechanism comprises a first ash cleaning port (5), a furnace door (6), a through pipe (7), a second ash cleaning port (8), a first fuel port (12), a first combustion chamber (18), a second combustion chamber (19), a second fuel port (21) and an auxiliary combustion assembly; two first ash cleaning ports (5) are fixed in the middle of the inner side of the boiler shell (1); a plurality of through pipes (7) are evenly distributed and fixed at the bottom of the first ash cleaning port (5); Two second ash cleaning ports (8) are fixed at the bottom of the inner side of the shell (1), and the second ash cleaning ports (8) are fixed to the through pipe (7). One end of the second ash cleaning ports (8) and the first ash cleaning ports (5) are provided with furnace doors (6). A first combustion chamber (18) and a second combustion chamber (19) are fixed to one end of the boiler shell (1), and the inner sides of the first combustion chamber (18) and the second combustion chamber (19) are connected to the through pipe (7). The first combustion chamber (18) and the second combustion chamber (19) are fixed in one piece, and a first fuel port (12) is provided at the top of the first combustion chamber (18), and a second fuel port (21) is provided at one end of the first combustion chamber (18). An auxiliary combustion component is installed at the top of the boiler shell (1).

2. A novel boiler according to claim 1, characterized in that: The auxiliary combustion assembly comprises a negative pressure fan (9) and a vertical pipe (10); the negative pressure fan (9) is fixed to one end of the top of the boiler shell (1); the vertical pipe (10) is fixed to the input end of the negative pressure fan (9); the vertical pipe (10) is fixed to the inner side of the boiler shell (1); a connection box is fixed to the bottom of the vertical pipe (10); and a plurality of through pipes (7) are also evenly distributed and fixed to the bottom of the connection box.

3. A novel boiler according to claim 1, characterized in that: A pressure gauge (11) is fixed on the top of the boiler shell (1) and at a position close to the discharge port (4).

4. A novel boiler according to claim 1, characterized in that: A cover plate (13) is provided on the top of the first fuel port (12).

5. A novel boiler according to claim 1, characterized in that: A liquid level control mechanism is installed on one side of the boiler shell (1), and the liquid level control mechanism is used to control the liquid level in the water storage cavity (3).

6. A novel boiler according to claim 5, characterized in that: The liquid level control mechanism comprises an automatic constant pressure water inlet auxiliary water tank (14), a connecting pipe (15), a float (16) and a water inlet (20); the automatic constant pressure water inlet auxiliary water tank (14) is fixed on one side of the boiler shell (1); the connecting pipe (15) is fixed on the top and bottom of the automatic constant pressure water inlet auxiliary water tank (14); one end of the connecting pipe (15) passes through the boiler shell (1) and is connected to the water storage cavity (3); a float (16) is arranged on the inner side of the automatic constant pressure water inlet auxiliary water tank (14); and the water inlet (20) is arranged on one end of the automatic constant pressure water inlet auxiliary water tank (14).

7. A novel boiler according to claim 3, characterized in that: A safety valve (17) is fixed at the top of the boiler shell (1) and at a position away from the discharge port (4).

8. A novel boiler according to claim 1, characterized in that: A first steam-water separation baffle (22) and a second steam-water separation baffle (23) are fixed to the top of the inner side of the water storage cavity (3), and one end of each of the first steam-water separation baffle (22) and the second steam-water separation baffle (23) is inclined downward.

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