A gas-fired boiler capable of deep dehumidification of flue gas and waste heat recovery

Abstract

The utility model relates to gas boiler technical field especially through the gas boiler of depth dehumidification and waste heat recovery of flue gas, the gas boiler of depth dehumidification and waste heat recovery of flue gas includes boiler shell, the inside upper fixedly connected with steam chamber of boiler shell, the inside lower fixedly connected with combustion chamber of boiler shell, the front side of boiler shell is provided with the opening, the opening is fixedly connected with the hinge, the lower end rotationally connected with sealing cover of hinge, sealing cover is fixedly connected with first handle, the inside steam chamber is provided with dehumidification structure, and dehumidification structure includes steam valve, delivery pipe and steam nozzle, the top of steam chamber is fixedly connected with connecting pipe, the upper end of connecting pipe is fixedly connected with steam valve, the gas boiler of depth dehumidification and waste heat recovery of flue gas provided by the utility model has the advantage that the steam chamber can be dehumidified through the steam nozzle.

Description

Technical Field

[0001] This utility model relates to the field of gas boiler technology, and in particular to a gas boiler that can achieve deep dehumidification of flue gas and waste heat recovery. Background Technology

[0002] A gas-fired boiler, as the name suggests, refers to a boiler that uses gas as fuel, or more specifically, any boiler that uses combustible gas as fuel. Combustible gases used as boiler fuel mainly include natural gas, city gas, coke oven gas, liquefied petroleum gas, and biogas. Depending on the usage scenario and function, the working principle of a gas-fired boiler is to heat water or steam by burning gas, thereby providing heat energy. Specifically, gas enters the boiler combustion chamber through a gas pipeline, is injected into the combustion chamber by an injector, mixes with air, and is ignited by an ignition device to form a flame. The heat generated by the combustion of gas is transferred to water or steam through a heat exchanger inside the boiler, causing it to expand and produce high-temperature, high-pressure steam. The steam is then transported through pipelines to the areas requiring heating, releasing heat to achieve heating. Cold water is drawn into the boiler through a circulating pump, heated to become hot water or steam, and then transported through pipelines to the heating equipment, releasing heat before returning to the boiler for circulation. This process continues continuously to maintain a stable heating supply from the heating equipment. Existing gas-fired boilers typically generate steam by burning the steam chamber in the combustion chamber. The steam is then transported to the area requiring heating via steam pipes. During the steam transport process, a certain amount of water vapor is generated at the gas valve. If the water vapor cannot be discharged or converted in time, it will lead to excessive humidity inside the boiler, which will affect the boiler's thermal efficiency and safety. Furthermore, the heat generated on both sides of the combustion chamber will diffuse, and the excess heat will be wasted.

[0003] Therefore, it is necessary to provide a new type of gas-fired boiler that can solve the above-mentioned technical problems through deep dehumidification of flue gas and waste heat recovery. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a gas-fired boiler that can achieve deep dehumidification of flue gas and waste heat recovery.

[0005] The gas-fired boiler provided by this utility model, which can perform deep dehumidification of flue gas and waste heat recovery, includes: The boiler shell has a steam chamber fixedly connected to the upper part of its interior and a combustion chamber fixedly connected to the lower part of its interior. An opening is provided on the front side of the boiler shell, and a hinge is fixedly connected to the opening. A sealing cover is rotatably connected to the lower end of the hinge, and a first handle is fixedly connected to the sealing cover. The steam chamber is equipped with a dehumidification structure, which includes a steam valve, a conveying pipe, and a steam nozzle. A connecting pipe is fixedly connected to the top of the steam chamber, and a steam valve is fixedly connected to the upper end of the connecting pipe. Conveying pipes are fixedly connected to both sides of the steam valve. Through holes are opened in the top of the boiler shell and the steam chamber. The lower ends of the two sets of conveying pipes pass through the through holes to the inside of the steam chamber, and steam nozzles are fixedly connected to the bottom ends of the two sets of conveying pipes. A conduction plate is fixedly connected to the bottom of the steam chamber, and the upper end of the conduction plate extends into the interior of the steam chamber.

[0006] Preferably, a support frame is fixedly connected to the bottom of the boiler shell, which can support the gas boiler.

[0007] Preferably, a water valve is fixedly connected to the upper front side of the boiler shell, the rear side of the water valve is connected to the steam chamber, and a water pipe is fixedly connected to one side of the water valve. Clean water can be added to the gas boiler through the water valve and the water pipe.

[0008] Preferably, a gas valve is fixedly connected to the front side of the boiler shell, the rear side of the gas valve is connected to the combustion chamber, and a gas pipe is fixedly connected to one side of the gas valve. Gas can be added to the gas boiler through the gas valve and the gas pipe.

[0009] Preferably, a steam pipe is fixedly connected to one side of the steam valve, through which steam can be transported.

[0010] Preferably, a repair opening is provided on the rear side of the boiler shell, and repair doors are installed on both sides of the repair opening. A second handle is fixedly connected to the repair door, which allows for convenient maintenance of the gas boiler.

[0011] Preferably, a controller is fixedly connected to the front side of the boiler shell, and a power cord is fixedly connected to one side of the controller. The gas boiler can be operated intuitively through the controller.

[0012] Preferably, the gas valve, water valve, and steam valve are electrically connected to the controller via wires, and the wires can transmit power and control signals to the respective electronic components. Compared with related technologies, the gas-fired boiler provided by this utility model, which can achieve deep dehumidification of flue gas and waste heat recovery, has the following beneficial effects: 1. This utility model can dehumidify the steam chamber through the dehumidification structure. During the operation of the gas boiler, the steam valve can be controlled by the operation controller to deliver steam to the place that needs heating through the steam pipe. The operation controller can also control the steam valve to transmit some of the high-temperature and high-pressure steam through the delivery pipe to the steam nozzle. The steam nozzle will spray the steam from both sides of the steam chamber to the bottom connection of the steam valve, and evaporate the water droplets generated, thereby achieving dehumidification of the steam chamber. 2. This utility model can conduct excess heat generated in the gas chamber through the set conduction plate. During the operation of the gas boiler, the gas is input into the combustion chamber through the gas valve for combustion. The heat dissipated to both sides of the combustion chamber is conducted to the steam chamber through the conduction plate to heat the water, thereby realizing the utilization of the generated waste heat. Attached Figure Description

[0013] Figure 1 A schematic diagram of a preferred embodiment of the gas-fired boiler that can perform deep dehumidification of flue gas and waste heat recovery provided by this utility model; Figure 2 for Figure 1 The diagram shown is a side cross-sectional view of a gas-fired boiler that can achieve deep dehumidification of flue gas and waste heat recovery. Figure 3 for Figure 1 The diagram shown is a front cross-sectional view of a gas-fired boiler that can achieve deep dehumidification of flue gas and waste heat recovery. Numbered in the diagram: 1. Boiler shell; 2. Support frame; 3. Gas valve; 4. Water valve; 5. Steam valve; 6. Hinge; 7. Sealing cover; 8. First handle; 9. Gas pipe; 10. Water pipe; 11. Steam pipe; 12. Delivery pipe; 13. Controller; 14. Wire; 15. Power cord; 16. Connecting pipe; 17. Steam chamber; 18. Combustion chamber; 19. Conductor plate; 20. Steam nozzle; 21. Repair port; 22. Repair door; 23. Second handle. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0015] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0016] Please see Figures 1 to 3 This utility model provides a gas-fired boiler that can perform deep dehumidification and waste heat recovery of flue gas. The gas-fired boiler that can perform deep dehumidification and waste heat recovery of flue gas includes: Boiler shell 1, steam chamber 17 is fixedly connected to the upper part of the interior of boiler shell 1, combustion chamber 18 is fixedly connected to the lower part of the interior of boiler shell 1, an opening is opened on the front side of boiler shell 1, a hinge 6 is fixedly connected to the opening, a sealing cover 7 is rotatably connected to the lower end of the hinge 6, and a first handle 8 is fixedly connected to the sealing cover 7. The steam chamber 17 is equipped with a dehumidification structure, which includes a steam valve 5, a conveying pipe 12, and a steam nozzle 20. A connecting pipe 16 is fixedly connected to the top of the steam chamber 17, and a steam valve 5 is fixedly connected to the upper end of the connecting pipe 16. Conveying pipes 12 are fixedly connected to both sides of the steam valve 5. Through holes are opened at the top of the boiler shell 1 and the steam chamber 17. The lower ends of the two sets of conveying pipes 12 pass through the through holes to the inside of the steam chamber 17, and steam nozzles 20 are fixedly connected to the bottom ends of the two sets of conveying pipes 12. The bottom end of the steam chamber 17 is fixedly connected to the conduction plate 19, and the upper end of the conduction plate 19 extends into the interior of the steam chamber 17.

[0017] It should be noted that during the operation of the gas boiler, the steam valve 5 can be controlled by the operating controller 10 to deliver steam through the steam pipe to the place that needs heating. The operating controller 10 controls the steam valve 5 to transmit some of the high-temperature and high-pressure steam through the conveying pipe 12 to the steam nozzle 20. The steam nozzle 20 sprays steam from both sides of the steam chamber 17 to the bottom connection of the steam valve 5, evaporating the water droplets generated, thereby dehumidifying the steam chamber. During the operation of the gas boiler, the gas is input into the combustion chamber 18 through the gas valve 3 for combustion. The heat emitted to both sides of the combustion chamber 18 is conducted to the inside of the steam chamber 17 through the conduction plate 19 to heat the clean water, thereby realizing the utilization of the generated waste heat.

[0018] In the embodiments of this utility model, please refer to Figure 1 and Figure 3 The bottom of the boiler shell 1 is fixedly connected to a support frame 2, which can support the gas boiler.

[0019] In the embodiments of this utility model, please refer to Figure 1 and Figure 3 A water valve 4 is fixedly connected to the upper front side of the boiler shell 1. The rear side of the water valve 4 is connected to the steam chamber 17. A water pipe 10 is fixedly connected to one side of the water valve 4. Clean water can be added to the gas boiler through the water valve 4 and the water pipe 10.

[0020] In the embodiments of this utility model, please refer to Figure 1 and Figure 3 A gas valve 3 is fixedly connected to the front side of the boiler shell 1. The rear side of the gas valve 3 is connected to the combustion chamber 18. A gas pipe 9 is fixedly connected to one side of the gas valve 3. Gas can be added to the gas boiler through the gas valve 3 and the gas pipe 9.

[0021] In the embodiments of this utility model, please refer to Figure 1 and Figure 3 A steam pipe 11 is fixedly connected to one side of the steam valve 5, through which steam can be transported.

[0022] In the embodiments of this utility model, please refer to Figure 1 and Figure 3 A repair port 21 is provided on the rear side of the boiler shell 1. Repair doors 22 are installed on both sides of the repair port 21. A second handle 23 is fixedly connected to the repair door 22. The gas boiler can be easily maintained through the repair door 22.

[0023] In the embodiments of this utility model, please refer to Figure 1 and Figure 3 A controller 13 is fixedly connected to the front side of the boiler shell 1, and a power cord 15 is fixedly connected to one side of the controller 13. The gas boiler can be operated intuitively through the controller 13.

[0024] In the embodiments of this utility model, please refer to Figure 1 and Figure 3 Gas valve 3, water valve 4 and steam valve 5 are electrically connected to controller 13 via wire 14. Power and control signals can be transmitted to each electronic component via the wire 14. The working principle of the gas-fired boiler that can deeply dehumidify flue gas and recover waste heat provided by this utility model is as follows: When in use, first connect the power cord 15 to the external power source. During the operation of the gas boiler, the steam valve 5 can be controlled by the operating controller 10 to deliver steam through the steam pipe to the place that needs heating. The operating controller 10 controls the steam valve 5 to transmit some of the high-temperature and high-pressure steam through the conveying pipe 12 to the steam nozzle 20. The steam nozzle 20 sprays steam from both sides of the steam chamber 17 to the bottom connection of the steam valve 5, evaporating the water droplets and thus dehumidifying the steam chamber. During the operation of the gas boiler, the gas is input into the combustion chamber 18 through the gas valve 3 for combustion. The heat radiated to both sides of the combustion chamber 18 is conducted to the inside of the steam chamber 17 through the conduction plate 19 to heat the water, thus realizing the utilization of the generated waste heat. The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A gas-fired boiler capable of deep dehumidification and waste heat recovery of flue gas, characterized in that, include: Boiler shell (1), a steam chamber (17) is fixedly connected to the upper part of the boiler shell (1), a combustion chamber (18) is fixedly connected to the lower part of the boiler shell (1), an opening is provided on the front side of the boiler shell (1), a hinge (6) is fixedly connected to the opening, a sealing cover (7) is rotatably connected to the lower end of the hinge (6), and a first handle (8) is fixedly connected to the sealing cover (7). The steam chamber (17) is equipped with a dehumidification structure, which includes a steam valve (5), a conveying pipe (12), and a steam nozzle (20). A connecting pipe (16) is fixedly connected to the top of the steam chamber (17), and a steam valve (5) is fixedly connected to the upper end of the connecting pipe (16). The conveying pipes (12) are fixedly connected to both sides of the steam valve (5). A through hole is opened at the top of the boiler shell (1) and the steam chamber (17). The lower ends of the two sets of conveying pipes (12) pass through the through hole to the inside of the steam chamber (17). The bottom ends of the two sets of conveying pipes (12) are fixedly connected to the steam nozzle (20). The bottom end of the steam chamber (17) is fixedly connected to the conductive plate (19), and the upper end of the conductive plate (19) extends into the interior of the steam chamber (17).

2. The gas-fired boiler with deep dehumidification and waste heat recovery of flue gas according to claim 1, characterized in that, The bottom of the boiler shell (1) is fixedly connected to a support frame (2).

3. The gas-fired boiler with deep dehumidification and waste heat recovery of flue gas as described in claim 1, characterized in that, A water valve (4) is fixedly connected to the upper front side of the boiler shell (1). The rear side of the water valve (4) is connected to the steam chamber (17). A water pipe (10) is fixedly connected to one side of the water valve (4).

4. The gas-fired boiler with deep dehumidification and waste heat recovery of flue gas according to claim 3, characterized in that, A gas valve (3) is fixedly connected to the front side of the boiler shell (1), and the rear side of the gas valve (3) is connected to the combustion chamber (18). A gas pipe (9) is fixedly connected to one side of the gas valve (3).

5. The gas-fired boiler with deep dehumidification and waste heat recovery of flue gas according to claim 1, characterized in that, A steam pipe (11) is fixedly connected to one side of the steam valve (5).

6. The gas-fired boiler with deep dehumidification and waste heat recovery of flue gas according to claim 1, characterized in that, A repair opening (21) is provided on the rear side of the boiler shell (1), and repair doors (22) are installed on both sides of the repair opening (21). A second handle (23) is fixedly connected to the repair door (22).

7. The gas-fired boiler with deep dehumidification and waste heat recovery of flue gas according to claim 4, characterized in that, A controller (13) is fixedly connected to the front side of the boiler shell (1), and a power cord (15) is fixedly connected to one side of the controller (13).

8. The gas-fired boiler with deep dehumidification and waste heat recovery of flue gas according to claim 7, characterized in that, The gas valve (3), water valve (4) and steam valve (5) are electrically connected to the controller (13) via wires (14).

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