Explosion-proof fuel gas steam generator

Abstract

The utility model discloses an explosion-proof fuel oil and gas steam generator which comprises a base, a shell, a water tank, a water injection port, a steam outlet, a first pressure release valve, an oil inlet pipe, a combustion pipe, a combustion head, a second pressure release valve and a smoke return pipe. The water injection port, the first pressure release valve and the steam outlet are all arranged above the water tank, and the oil inlet pipe is connected with the combustion pipe. According to the utility model, through the unique design of the U-shaped combustion tube, the side wall of the water tank can be directly heated in the combustion process, compared with a traditional bottom heating mode, the problem that the water tank is heated unevenly is greatly improved, the steam generator with the U-shaped combustion tube is adopted, the rising speed of the water temperature in the water tank is higher than that of the traditional mode, the heating speed can be greatly increased, and the energy consumption is reduced. And the time required for steam generation is effectively shortened, so that for enterprises needing a large amount of steam supply, the production efficiency can be remarkably improved, and the production cost can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of steam generator technology, and in particular to an explosion-proof fuel gas steam generator. Background Technology

[0002] Fuel-fired steam generators use the heat generated by burning fuel to heat the water in a water tank, thereby producing steam. Existing fuel-fired steam generators typically have a combustion chamber at the bottom of the casing and a water tank above it. Fuel enters the combustion chamber through the fuel inlet pipe and is ignited by an ignition gun. The burning fuel then heats the water in the water tank.

[0003] However, traditional oil and gas steam generators have many shortcomings in structure and function. In terms of heating method, most adopt a simple bottom heating structure, with the combustion area concentrated at the bottom of the water tank. This results in uneven heating of the water in the tank, which not only affects the efficiency of steam generation and prolongs the production cycle, but may also cause energy waste. For example, in some food processing enterprises, due to uneven heating, the water temperature in some areas is too high, while the water temperature in other areas rises slowly, making it impossible for the overall steam output to meet production needs, affecting the processing quality and production progress. In terms of energy utilization, traditional steam generators have a relatively simple method for treating the flue gas generated after combustion, usually directly emitting it into the atmosphere. This not only causes a lot of energy waste, but also increases the operating costs of enterprises, and the energy utilization rate needs to be improved.

[0004] To address these shortcomings, we proposed an explosion-proof fuel gas vapor generator. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an explosion-proof fuel gas vapor generator.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: an explosion-proof fuel gas steam generator, comprising a base, a housing, a water tank, a water inlet, a steam outlet, a first pressure relief valve, an oil inlet pipe, a combustion pipe, a burner head, a second pressure relief valve, and a smoke return pipe. The housing is fixed on the base, the water tank is disposed inside the housing, the water inlet, the first pressure relief valve, and the steam outlet are all disposed above the water tank, the oil inlet pipe is connected to the combustion pipe, the combustion pipe has a U-shaped structure surrounding the water tank, the burner head is disposed on the combustion pipe, the second pressure relief valve is mounted on the housing, one end of the smoke return pipe extends between the housing and the water tank, and the other end of the smoke return pipe is connected to the outer shell.

[0007] Preferably, the combustion tube is used in conjunction with a water tank.

[0008] Preferably, the combustion head is provided in multiple ways, and the multiple combustion heads are equidistantly distributed on the combustion tube.

[0009] Preferably, the other end of the oil inlet pipe is connected to an external fuel tank.

[0010] Preferably, the diameter of the water tank is smaller than the diameter of the shell.

[0011] Preferably, the cross-sectional area of ​​the base is larger than the cross-sectional area of ​​the shell.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention utilizes a unique U-shaped combustion tube design, allowing the sidewalls of the water tank to be directly heated during combustion. Compared to traditional bottom heating methods, this significantly improves the problem of uneven heating of the water tank. The steam generator with the U-shaped combustion tube allows the water temperature inside the tank to rise faster than traditional methods, greatly accelerating the heating speed and effectively shortening the time required for steam generation. For enterprises that require a large supply of steam, this can significantly improve production efficiency and reduce production costs.

[0014] The design of the flue gas return pipe in this invention enables the secondary use of the exhaust gas. The high-temperature flue gas generated during combustion enters the heating zone inside the combustion chamber through the flue gas return pipe during the exhaust process, transferring the waste heat to the water in the water tank. This design can significantly improve the energy utilization rate of the steam generator, effectively reduce energy waste, and lower the energy consumption costs of enterprises. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the external structure of the explosion-proof fuel gas vapor generator proposed in this utility model;

[0017] Figure 2 This is a cross-sectional view of the explosion-proof fuel gas vapor generator proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the water tank, combustion tube, and burner head.

[0019] Legend:

[0020] 1. Base; 2. Housing; 3. Water tank; 4. Water inlet; 5. Steam outlet; 6. First pressure relief valve; 7. Oil inlet pipe; 8. Combustion pipe; 9. Combustion head; 10. Second pressure relief valve; 11. Smoke return pipe. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0023] Please refer to Figure 1-3 An explosion-proof fuel gas steam generator includes a base 1, a housing 2, a water tank 3, a water inlet 4, a steam outlet 5, a first pressure relief valve 6, an oil inlet pipe 7, a combustion pipe 8, a burner head 9, a second pressure relief valve 10, and a return smoke pipe 11. The housing 2 is fixed to the base 1, the water tank 3 is disposed inside the housing 2, the water inlet 4, the first pressure relief valve 6, and the steam outlet 5 are all located above the water tank 3, the oil inlet pipe 7 is connected to the combustion pipe 8, the combustion pipe 8 has a U-shaped structure surrounding the water tank 3, the burner head 9 is disposed on the combustion pipe 8, the second pressure relief valve 10 is installed on the housing 2, and one end of the return smoke pipe 11 extends between the housing 2 and the water tank 3, while the other end of the return smoke pipe 11 is connected to the outer casing 1.

[0024] Before use, inject an appropriate amount of water into the water tank 3 through the water inlet 4. This is the basis for steam generation. The water stored in the water tank 3 provides the material source for subsequent steam generation. Fuel oil or gas enters the combustion tube 8 through the oil inlet pipe 7 and is ignited by the burner head 9. The burner head 9 provides the ignition source for the fuel combustion, allowing the fuel to burn completely in the combustion tube 8. The combustion tube 8 has a U-shaped structure that surrounds the water tank 3. This design allows the heat generated by combustion to be quickly and evenly transferred to the side wall of the water tank 3, making the water in the water tank 3 more evenly heated and accelerating the heating rate. Compared with the traditional bottom heating method, it greatly shortens the time required for steam generation. The water in the water tank 3 heats up under the heat transferred by the combustion tube 8, and steam is generated after reaching the boiling point. The steam is discharged through the steam outlet 5 and can be used for various production or domestic purposes, such as the steam needs of food processing, textile printing and dyeing industries. During operation, the first pressure relief valve 6 and the second pressure relief valve 10 play a crucial role. The first pressure relief valve 6 is installed on the water tank 3. When the pressure in the water tank 3 is too high, it will automatically open to relieve pressure and prevent the water tank 3 from being dangerous due to excessive pressure. The second pressure relief valve 10 is installed on the combustion tube 8. When the pressure in the combustion tube 8 rises abnormally, it will open in time to relieve pressure and ensure the safety of the combustion tube 8, avoiding safety accidents such as explosions caused by pressure problems. The high-temperature flue gas generated by combustion is discharged through the combustion tube 8 and enters the return flue pipe 11. One end of the return flue pipe 11 is connected to the combustion tube 8, and the other end is connected to the heating area of ​​the water tank 3. During the flow of the high-temperature flue gas in the return flue pipe 11, the residual heat is transferred to the water in the water tank 3, realizing the secondary use of the flue gas. This design greatly improves the energy utilization rate of the steam generator, reduces energy waste, and lowers the energy consumption cost of enterprises.

[0025] In this implementation plan: the combustion tube 8 is used in conjunction with the water tank 3.

[0026] Specifically, this ensures the heating effect and efficiency of the water in water tank 3.

[0027] In this embodiment, there are multiple burner heads 9, and the multiple burner heads 9 are equidistantly distributed on the combustion tube 8.

[0028] Specifically, it improves the heating effect of the water in water tank 3, making the water heated more evenly.

[0029] In this implementation plan: the other end of the oil inlet pipe 7 is connected to an external fuel tank.

[0030] Specifically, ensure the normal operation of the steam generator.

[0031] In this implementation plan: the diameter of the water tank 3 is smaller than the diameter of the shell 2.

[0032] Specifically, this allows the water tank 3 to be installed inside the housing 2.

[0033] In this embodiment, the cross-sectional area of ​​the base 1 is greater than the cross-sectional area of ​​the shell 2.

[0034] Specifically, increasing the grounding area makes the system more stable during use.

[0035] Working Principle: During use, an appropriate amount of water is injected into the water tank 3 through the water inlet 4. This is the basis for steam generation; the water stored in the tank 3 provides the material source for subsequent steam generation. Fuel oil or natural gas enters the combustion tube 8 through the oil inlet pipe 7 and is ignited by the burner head 9. The burner head 9 provides the ignition source for fuel combustion, ensuring complete combustion within the combustion tube 8. The combustion tube 8 has a U-shaped structure surrounding the water tank 3. This design allows the heat generated by combustion to be quickly and evenly transferred to the side walls of the water tank 3, resulting in more uniform heating of the water and accelerating the heating rate. Compared to traditional bottom heating methods, this significantly shortens the time required for steam generation. The water in the tank 3 heats up under the heat transferred by the combustion tube 8, reaching its boiling point to produce steam. The steam is discharged through the steam outlet 5 and can be used for various production or domestic applications, such as the steam needs of food processing and textile printing and dyeing industries. Throughout the operation, the first pressure relief valve 6 and the second pressure relief valve 10 play crucial roles. The first pressure relief valve 6 is installed on the water tank 3. When the pressure inside the water tank 3 is too high, it will automatically open to relieve pressure and prevent the water tank 3 from becoming dangerous due to excessive pressure. The second pressure relief valve 10 is installed on the combustion tube 8. When the pressure inside the combustion tube 8 rises abnormally, it will open in time to relieve pressure and ensure the safety of the combustion tube 8, avoiding safety accidents such as explosions caused by pressure problems. The high-temperature flue gas generated by combustion is discharged through the combustion tube 8 and enters the return flue pipe 11. One end of the return flue pipe 11 is connected to the combustion tube 8, and the other end is connected to the heating area of ​​the water tank 3. During the flow of the high-temperature flue gas in the return flue pipe 11, the residual heat is transferred to the water in the water tank 3, realizing the secondary use of the flue gas. This design greatly improves the energy utilization rate of the steam generator, reduces energy waste, and lowers the energy consumption costs of enterprises.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An explosion-proof fuel gas steam generator, comprising a base (1), a housing (2), a water tank (3), a water inlet (4), a steam outlet (5), a first pressure relief valve (6), an oil inlet pipe (7), a combustion pipe (8), a burner head (9), a second pressure relief valve (10), and a smoke return pipe (11), characterized in that, The housing (2) is fixed on the base (1), the water tank (3) is set inside the housing (2), the water inlet (4), the first pressure relief valve (6) and the steam outlet (5) are all set above the water tank (3), the oil inlet pipe (7) is connected to the combustion pipe (8), the combustion pipe (8) is U-shaped and surrounds the water tank (3), the burner head (9) is set on the combustion pipe (8), the second pressure relief valve (10) is installed on the housing (2), one end of the return smoke pipe (11) extends between the housing (2) and the water tank (3), and the other end of the return smoke pipe (11) is connected to the outer shell (1).

2. The explosion-proof fuel gas vapor generator according to claim 1, characterized in that, The combustion tube (8) is used in conjunction with the water tank (3).

3. The explosion-proof fuel gas vapor generator according to claim 1, characterized in that, The combustion head (9) is provided in multiple ways, and the multiple combustion heads (9) are equidistantly distributed on the combustion tube (8).

4. The explosion-proof fuel gas vapor generator according to claim 1, characterized in that, The other end of the oil inlet pipe (7) is connected to an external fuel tank.

5. The explosion-proof fuel gas vapor generator according to claim 1, characterized in that, The diameter of the water tank (3) is smaller than the diameter of the shell (2).

6. The explosion-proof fuel gas vapor generator according to claim 1, characterized in that, The cross-sectional area of ​​the base (1) is greater than that of the shell (2).

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