A steam generator auxiliary heating boiler

Abstract

The utility model discloses a kind of auxiliary heating boiler with steam generator, it includes: outer protective tank, the inner surface of outer protective tank is fixedly connected with baffle, baffle's inner surface is inlayed with heating tank, the inside of outer protective tank is provided with heating device, heating device is located below heating tank, the upper surface of heating tank is communicated with steam output pipe, the lateral surface of outer protective tank is fixedly connected with steam generator, the output end of steam generator is communicated with steam output pipe by conveying pipe, the outer wall of heating tank is fixedly connected with spiral heat pipe, by above component, by spiral heat pipe, flue gas waste heat can be transferred to heating tank outer wall, realize flue gas waste heat recovery and improve heating efficiency, reduce heat energy waste, and after flue gas releases heat through heat pipe, discharge temperature will reduce, reduce the influence to environment.

Description

Technical Field

[0001] This utility model relates to the field of boiler technology, and in particular to a boiler with an auxiliary heating steam generator. Background Technology

[0002] Boilers with auxiliary steam generators are widely used in food processing, chemical production, and district heating, primarily to provide stable thermal energy support for production processes or spaces through steam or high-temperature hot water.

[0003] In traditional boilers, the high-temperature flue gas (usually 200~300℃) generated by the heating device (such as the burner) is often directly discharged through the chimney, resulting in a large amount of heat energy being wasted due to insufficient utilization; at the same time, the emission of high-temperature flue gas will also increase the risk of environmental thermal pollution and raise the ambient temperature. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a boiler with an auxiliary heating steam generator, which solves the problems of waste of heat energy and environmental pollution caused by direct discharge of flue gas waste heat in existing boiler devices.

[0005] This utility model also provides a boiler with an auxiliary heating steam generator, comprising: an outer protective tank, a partition fixedly connected to the inner surface of the outer protective tank, a heating tank embedded in the inner surface of the partition, a heating device disposed inside the outer protective tank, the heating device being located below the heating tank, a steam output pipe connected to the upper surface of the heating tank, a steam generator fixedly connected to the side surface of the outer protective tank, the output end of the steam generator being connected to the steam output pipe via a conveying pipe, a coiled heat conduction pipe fixedly connected to the outer wall of the heating tank, the other end of the coiled heat conduction pipe being connected to a flue pipe extending to the outside of the outer protective tank, and multiple air guide pipes connected to the upper surface of the partition, the other end of the air guide pipes being connected to the flue pipe.

[0006] According to the present invention, the auxiliary heating boiler with a steam generator includes a heating device comprising: a burner head and a connector. The burner head is fixedly connected to the inner surface of the outer protective tank and is located below the heating tank. The connector is fixedly connected to the lower surface of the outer protective tank and communicates with the burner head.

[0007] According to the present invention, the auxiliary heating boiler with a steam generator has a water injection pipe connected to the side surface of the heating tank, and the water injection pipe extends to the outside of the outer protective tank.

[0008] According to the present invention, the auxiliary heating boiler with a steam generator has a drain pipe connected to the side surface of the heating tank, and the drain pipe extends to the outside of the outer protective tank.

[0009] According to the auxiliary heating boiler with steam generator described in this utility model, both the water injection pipe and the drain pipe are equipped with switch valves. Beneficial effects

[0010] The auxiliary heating boiler with a steam generator in this technical solution can transport the flue gas during heating to the swirling heat conduction tube through the gas guide pipe, thereby raising the temperature of the swirling heat conduction tube. Subsequently, the waste heat of the flue gas can be transferred to the outer wall of the heating tank through the swirling heat conduction tube, realizing the recovery of waste heat of flue gas, improving heating efficiency, reducing heat energy waste, and reducing the emission temperature of the flue gas after releasing heat through the heat conduction tube, thus reducing the impact on the environment. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a front view of the auxiliary heating boiler with a steam generator according to this utility model; Figure 2 This is a right-side cross-sectional view of the auxiliary heating boiler with a steam generator according to this utility model. Figure 3 This is a front cross-sectional view of the auxiliary heating boiler with a steam generator according to this utility model. Figure 4 The present invention relates to the internal structure of an outer protective tank for an auxiliary heating boiler with a steam generator. Figure 1 ; Figure 5 The present invention relates to the internal structure of an outer protective tank for an auxiliary heating boiler with a steam generator. Figure 2 .

[0012] Legend: 1. Delivery pipe; 2. Steam generator; 3. Outer protective tank; 4. Steam output pipe; 5. Water injection pipe; 6. Switch valve; 7. Baffle plate; 8. Smoke exhaust pipe; 9. Heating tank; 10. Drain pipe; 11. Flame head; 12. Connector; 13. Coiled heat conduction pipe; 14. Gas guide pipe. Detailed Implementation

[0013] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0014] Reference Figure 1-5This utility model embodiment provides a boiler with an auxiliary heating unit and a steam generator, comprising: an outer protective tank 3, a partition 7 fixedly connected to the inner surface of the outer protective tank 3, a heating tank 9 embedded in the inner surface of the partition 7, a heating device disposed inside the outer protective tank 3, the heating device being located below the heating tank 9, and a steam output pipe 4 communicating with the upper surface of the heating tank 9. The partition 7 separates the internal space of the outer protective tank 3, placing the heating tank 9 in the center position, which facilitates the heating device to directly heat its bottom, while the steam output pipe 4 enables steam output. Considering the need to connect the steam generator 2 to the steam output pipe 4 to achieve mixed output of auxiliary heat steam, the steam generator 2 is fixedly connected to the side surface of the outer protective tank 3. The output end of the steam generator 2 is connected to the steam output pipe 4 through the conveying pipe 1. The steam generator 2 is connected to the steam output pipe 4 through the conveying pipe. The auxiliary heat steam is mixed with the main steam and then output in a unified manner to increase the total steam volume. The steam generator 2 is specifically composed of a water tank, heating elements (such as electric heating tubes and burners), a steam outlet, a control system, and a safety valve. The heating elements rapidly heat the water in the water tank to the boiling point to generate steam, which is then output through the steam outlet. The steam generator is a mature technology that is well-known to people in this field, so its specific structure and working principle will not be described in detail in this article.

[0015] Considering the need to recover waste heat from flue gas to heat the outer wall of the heating tank 9 and improve thermal efficiency, a coiled heat-conducting pipe 13 is fixedly connected to the outer wall of the heating tank 9. The other end of the coiled heat-conducting pipe 13 is connected to the exhaust pipe 8, which extends to the outside of the outer protective tank 3. Multiple air guide pipes 14 are connected to the upper surface of the partition 7. The other end of the air guide pipe 14 is connected to the exhaust pipe 8. The coiled heat-conducting pipe 13 is attached to the outer wall of the heating tank 9. After the flue gas is introduced through the air guide pipe 14, it releases heat to heat the tank body, reduce the exhaust temperature, and recover waste heat.

[0016] In summary, the improvement of this embodiment lies in: When the heating device is heating, the flue gas can be transported to the spiral heat conduction tube 13 through the gas guide pipe 14, so that the spiral heat conduction tube 13 is heated. Then, the waste heat of the flue gas can be transferred to the outer wall of the heating tank 9 through the spiral heat conduction tube 13, so as to realize the recovery of waste heat of flue gas, improve heating efficiency, reduce heat energy waste, and reduce the emission temperature after the flue gas releases heat through the spiral heat conduction tube 13, thus reducing the impact on the environment.

[0017] Based on the above, other structures also need to be disclosed in detail, such as: Reference Figure 2Considering the need for a burner structure to directly heat the bottom of the tank, the heating device includes: a burner head 11 and a connector 12. The burner head 11 is fixedly connected to the inner surface of the outer protective tank 3, and is located below the heating tank 9. The connector 12 is fixedly connected to the lower surface of the outer protective tank 3 and communicates with the burner head 11. The burner head 11 is connected to an external gas supply pipeline through the connector 12, directly spraying flames onto the bottom of the heating tank 9 to achieve rapid heating. Reference Figure 2 Considering the need to inject water into the heating tank 9 to generate steam, a water injection pipe 5 is connected to the side surface of the heating tank 9. The water injection pipe 5 extends to the outside of the outer protective tank 3 and is connected to an external water source to inject water into the heating tank 9, providing raw materials for steam generation.

[0018] Reference Figure 2 Considering the need to drain the water from the heating tank 9, a drain pipe 10 is connected to the side surface of the heating tank 9. The drain pipe 10 extends to the outside of the outer protective tank 3 and is used to drain the water from the tank.

[0019] Reference Figure 2 Considering the need to control the flow rate and switching of water injection and drainage, both the water injection pipe 5 and the drainage pipe 10 are equipped with a switch valve 6. The switch valve 6 can accurately adjust the water injection and drainage flow rate to ensure stable water level and system safety.

[0020] Working principle: External gas is delivered to the burner head 11 through connector 12. The burner head 11 is located below the heating tank 9 and sprays flames directly to heat the bottom of the heating tank 9 quickly, causing the water in the tank to evaporate and generate steam. The steam is output through the steam output pipe 4 above. At the same time, the high-temperature flue gas generated by the combustion of the heating device is introduced into the spiral heat conduction pipe 13 through the gas guide pipe 14. The spiral heat conduction pipe 13 is tightly attached to the outer wall of the heating tank 9. The flue gas flows in the pipe and releases heat to heat the outer wall of the heating tank 9, realizing the recovery and utilization of the waste heat of the flue gas. The cooled flue gas is discharged through the exhaust pipe 8, and the emission temperature is significantly reduced. In addition, the steam generator 2, as an auxiliary heating device, injects the generated steam into the steam output pipe 4 through the delivery pipe 1, mixes it with the main steam, and outputs it in a unified manner to increase the total steam volume; Water injection pipe 5 connects to an external water source to inject water into heating tank 9, and drain pipe 10 is used to discharge water from the tank. Switch valve 6 precisely controls the injection and drainage flow to maintain a stable water level. Thus, while achieving efficient waste heat recovery from flue gas to improve heating efficiency and reduce heat waste, the triple mechanism of main heating and auxiliary heating of steam generator and main flue gas recovery and utilization not only improves the overall thermal efficiency but also reduces the impact of emission temperature on the environment, meeting the demand for stable heating.

[0021] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A steam generator auxiliary heating boiler comprising: An outer protective tank (3) has a partition (7) fixedly connected to its inner surface. A heating tank (9) is inlaid on the inner surface of the partition (7). A heating device is installed inside the outer protective tank (3) and is located below the heating tank (9). A steam output pipe (4) is connected to the upper surface of the heating tank (9). A steam generator (2) is fixedly connected to the side surface of the outer protective tank (3). The output end of the steam generator (2) is connected to the steam output pipe (4) through a conveying pipe (1). The outer protective tank (3) is characterized by the following features: The outer wall of the heating tank (9) is fixedly connected to a spiral heat conduction pipe (13), and the other end of the spiral heat conduction pipe (13) is connected to a smoke exhaust pipe (8). The smoke exhaust pipe (8) extends to the outside of the outer protective tank (3). The upper surface of the partition (7) is connected to multiple air guide pipes (14), and the other end of the air guide pipe (14) is connected to the smoke exhaust pipe (8).

2. The auxiliary-fired boiler with steam generator according to claim 1, characterized in that, The heating device includes: a flame head (11) and a connector (12). The flame head (11) is fixedly connected to the inner surface of the outer protective tank (3). The flame head (11) is located below the heating tank (9). The connector (12) is fixedly connected to the lower surface of the outer protective tank (3). The connector (12) is connected to the flame head (11).

3. The auxiliary-fired boiler with steam generator according to claim 1, characterized in that, The side surface of the heating tank (9) is connected to a water injection pipe (5), which extends to the outside of the outer protective tank (3).

4. The auxiliary-fired boiler with steam generator according to claim 1, characterized in that, The side surface of the heating tank (9) is connected to a drain pipe (10), which extends to the outside of the outer protective tank (3).

5. The auxiliary-fired boiler with steam generator according to claim 3, characterized in that, Both the water injection pipe (5) and the drain pipe (10) are equipped with switch valves (6).

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