Environment-friendly boiler

Abstract

The embodiment of the utility model provides a kind of environmental protection boiler, it is related to boiler technical field, to improve the technical problem that insufficient mixing of air and fuel in the boiler in the prior art thus leading to insufficient combustion of fuel.It includes furnace bottom and furnace, furnace bottom includes air supply component and water tank, furnace includes hearth and the steam drum that is arranged to wrap hearth, hearth is provided with fuel, water tank and steam drum are connected by support tube, steam drum is connected with steam output pipeline;Hearth includes water-cooled wall, air inlet support plate and top cover, water-cooled wall is connected with flue gas output pipeline;Air supply component includes air supply box and multiple distribution pipes connected with air supply box, the end of multiple distribution pipes away from air supply box penetrates water tank and extends to the direction of air inlet support plate.The utility model makes that air flow can enter by the lower part of hearth, makes enough disturbance stirring in hearth for air, to reduce the problem that insufficient combustion of fuel due to insufficient mixing of air and fuel.

Description

Technical Field

[0001] This utility model relates to the field of boiler technology, and more specifically, to an environmentally friendly boiler. Background Technology

[0002] Boilers are commonly used in various fields to utilize the chemical energy of fuel to convert water into hot water, saturated steam, or superheated steam.

[0003] Currently, during the combustion of fuel in a boiler, incomplete combustion often occurs due to insufficient mixing of air and fuel, leading to fuel waste, environmental pollution, and boiler damage. Utility Model Content

[0004] The purpose of this utility model is to provide an environmentally friendly boiler to improve the technical problem of incomplete combustion of fuel due to insufficient mixing of air and fuel in the boiler in the prior art.

[0005] The embodiments of this utility model can be implemented as follows: In a first aspect, this utility model provides an environmentally friendly boiler, comprising: Furnace bottom, the furnace bottom including air supply components and water tank; The furnace chamber includes a furnace cavity and a steam drum; multiple support pipes are provided between the steam drum and the water tank, and the two ends of the support pipes are respectively connected to the steam drum and the water tank; the steam drum is connected to a steam output pipe; the furnace cavity includes a water-cooled wall, an air inlet support plate and a top cover, the steam drum is arranged around the water-cooled wall, and the water-cooled wall is connected to a flue gas output pipe; The air supply assembly includes an air supply box and a plurality of distribution pipes connected to the air supply box. The ends of the plurality of distribution pipes away from the air supply box pass through the water tank and extend toward the air intake support plate.

[0006] In an optional embodiment, the air intake support plate is provided with a plurality of air intake holes evenly spaced.

[0007] In an optional embodiment, the air intake hole is circular, rectangular, or polygonal in shape.

[0008] In an optional embodiment, the steam drum is supported on the water tank by a plurality of the support pipes, thereby forming a gap between the steam drum and the water tank.

[0009] In an optional implementation, the height of the gap is , .

[0010] In an optional embodiment, the support tube is an arc-shaped tube, and the arc-shaped portion of the arc-shaped tube bends away from the steam drum.

[0011] In an optional implementation, the number of support tubes is 3-6.

[0012] In an optional embodiment, the air supply assembly further includes a fan, which is connected to the air supply box via an air supply duct.

[0013] In an optional implementation, the water tank is connected to a water inlet pipe.

[0014] In an optional embodiment, the outer cover of the steam drum is provided with a housing, through which the water-cooled wall and the flue gas output pipe are disposed.

[0015] The beneficial effects of the environmentally friendly boiler provided in this embodiment of the invention include: This utility model provides an environmentally friendly boiler, comprising a furnace bottom and a furnace chamber. The furnace bottom includes an air supply assembly and a water tank. The furnace chamber includes a furnace cavity and a steam drum surrounding the furnace cavity. Fuel is disposed within the furnace cavity. The water tank and the steam drum are connected via a support pipe, and the steam drum is connected to a steam output pipe. The furnace cavity includes a water-cooled wall, an air inlet support plate, and a top cover. The water-cooled wall is connected to a flue gas output pipe. The air supply assembly includes an air supply box and multiple distribution pipes connected to the air supply box. The ends of the multiple distribution pipes away from the air supply box pass through the water tank and extend towards the air inlet support plate. This utility model, by providing distribution pipes connected to the air supply box, allows airflow to enter from the lower part of the furnace cavity, fully mixing with the fuel within the furnace cavity and generating sufficient agitation, thereby reducing the problem of incomplete fuel combustion caused by insufficient air-fuel mixing. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A front sectional view of the environmentally friendly boiler provided in this embodiment; Figure 2 This is a schematic diagram of the air intake support plate in the environmentally friendly boiler provided in this embodiment.

[0018] Icons: 100 - Furnace bottom; 110 - Air supply assembly; 111 - Air supply box; 112 - Distribution pipe; 113 - Blower; 120 - Water tank; 200-Furnace chamber; 210-Furnace lining; 211-Water-cooled wall; 212-Inlet support plate; 2121-Inlet hole; 213-Top cover; 220-Steam drum; 300-Support tube; 400 - Housing; A1 - Steam output pipe; A2 - Flue gas output pipe; B1 - Air supply duct; B2 - Water inlet duct. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they 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.

[0023] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0024] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0025] In existing technologies, boilers are used in various technical fields, such as thermal power, industrial processes, and heating and domestic use. Essentially, they are devices used to achieve energy conversion. For example, in the heating and domestic use sector, boilers are typically used to utilize the chemical energy of fuel to convert water into hot water, saturated steam, or superheated steam.

[0026] Currently, fuel combustion in boilers can be incomplete due to various reasons, such as insufficient air, poor fuel properties, inadequate mixing of air and fuel, or insufficient ambient temperature in the furnace.

[0027] The issue of air-fuel mixing refers specifically to insufficient mixing and disturbance of the airflow entering the combustion chamber, resulting in inadequate contact between fuel and air.

[0028] Incomplete combustion of fuel can lead to problems such as fuel waste, environmental pollution, and damage to boilers.

[0029] The following describes in detail the overall structure, working principle, and technical effects of the environmentally friendly boiler provided by this utility model through embodiments and in conjunction with the accompanying drawings.

[0030] Example: This embodiment provides an environmentally friendly boiler that can be applied to multiple technical fields such as thermal power, process engineering, and heating and living, and is used to utilize the chemical energy of fuel to convert water or other working fluids into hot water, saturated steam or superheated steam.

[0031] Please see Figure 1 This embodiment provides an environmentally friendly boiler, including a furnace bottom 100 and a furnace chamber 200 disposed above the furnace bottom 100. The furnace chamber 200 is configured to hold fuel and water for absorbing the heat energy of fuel combustion; the furnace bottom 100 includes an air supply assembly 110 and a water tank 120, and is configured to supply the furnace chamber 200 with the air required for water and fuel.

[0032] In this embodiment, the furnace chamber 200 includes a furnace 210 and a steam drum 220 surrounding the furnace 210; multiple support pipes 300 are provided between the steam drum 220 and the water tank 120, with both ends of the support pipes 300 connected to the steam drum 220 and the water tank 120 respectively, and supporting the steam drum 220 and the water tank 120 vertically. The steam drum 220 is connected to a steam output pipe A1; the furnace 210 includes a water-cooled wall 211, an air inlet support plate 212, and a top cover 213, with the steam drum 220 surrounding the water-cooled wall 211, and the water-cooled wall 211 connected to a flue gas output pipe A2. Figure 1 (The arrow inside the flue gas output pipe A2 indicates the direction of flue gas flow); the air supply assembly 110 includes an air supply box 111 and a plurality of distribution pipes 112 connected to the air supply box 111. One end of the plurality of distribution pipes 112 away from the air supply box 111 passes through the water tank 120 and extends toward the air intake support plate 212.

[0033] The environmentally friendly boiler provided in this embodiment has a distribution pipe 112 connected to the air supply box 111, which allows airflow to enter from the bottom of the furnace 210 and mix fully with the fuel in the furnace 210, generating sufficient agitation and stirring, thereby reducing the problem of incomplete fuel combustion caused by insufficient mixing of air and fuel.

[0034] Please continue reading. Figure 1 In the height direction of the boiler, the furnace chamber 200 is located above the furnace bottom 100, which includes an air supply assembly 110 and a water tank 120; therefore, in this embodiment, the water and air supplied to the boiler are transmitted from bottom to top.

[0035] Specifically, the water-cooled wall 211, the air intake support plate 212, and the top cover 213 together define a combustion chamber for placing fuel, in which the fuel can be burned.

[0036] In some embodiments, the fuel may be selected from various fuels such as anthracite, and no limitation is made herein.

[0037] To ensure complete combustion of fuel in the combustion chamber, in this embodiment, the air supply assembly 110 includes an air supply box 111, multiple distribution pipes 112 connected to the air supply box 111, and a blower 113. The ends of the multiple distribution pipes 112 away from the air supply box 111 pass through the water tank 120 and extend towards the air intake support plate 212. The blower 113 is connected to the air supply box 111 via an air supply duct B1. Air is blown into the air supply box 111 by the blower 113, then distributed to the air intake support plate 212 by the multiple distribution pipes 112, and finally enters the combustion chamber from the air intake support plate 212 to mix with the fuel. Figure 1 The arrows inside the central air supply box 111 and the distribution pipe 112 indicate the direction of air flow.

[0038] On the one hand, the air enters the combustion chamber from bottom to top, which can fully agitate and stir the fuel, so that the air and fuel can be fully mixed, thereby reducing the problem of incomplete combustion caused by insufficient air and fuel mixing; on the other hand, the air can be evenly distributed through multiple distribution pipes 112, so that it can enter the combustion chamber evenly through the intake support plate 212, which can further improve the air-fuel mixing effect.

[0039] Please see Figure 2 In this embodiment, the air intake support plate 212 is connected to the bottom of the water-cooled wall 211, serving to support the fuel on one hand and to allow air to flow in on the other.

[0040] Specifically, the intake support plate 212 has multiple air intake holes 2121, through which air can enter the combustion chamber and mix with the fuel.

[0041] In some embodiments, the shape of the air inlet 2121 can be circular, rectangular or polygonal.

[0042] For example, the air inlet 2121 is circular in shape.

[0043] Please continue reading. Figure 1 In this embodiment, a top cover 213 is provided at the end of the water-cooled wall 211 away from the air intake support plate 212. The top cover 213 is detachably installed on the water-cooled wall 211, and personnel can put fuel into the combustion chamber or clean slag through the top cover 213.

[0044] In this embodiment, the steam drum 220 is arranged around the water-cooled wall 211. The steam drum 220 is supported on the water tank 120 by multiple support pipes 300. At the same time, the support pipes 300 are hollow structures and can connect the steam drum 220 and the water tank 120 simultaneously.

[0045] Furthermore, water tank 120 is connected to water inlet pipe B2.

[0046] Understandably, the steam drum 220 contains water that directly receives heat from the combustion chamber. At the same time, since the steam drum 220 is connected to the water tank 120 through the support pipe 300, when the steam drum 220 needs to be replenished with water, water can be added to the water tank 120 through the water inlet pipe B2. The replenished water enters the steam drum 220 through the support pipe 300. Figure 1 The arrow inside the central support pipe 300 indicates the direction of the replenishment water flow.

[0047] Furthermore, the support tube 300 is an arc-shaped tube, and the number of them is 3-6.

[0048] In one specific embodiment, the arc-shaped portion of the arc-shaped tube bends away from the steam drum 220, and the number of support tubes 300 is four, with the four support tubes 300 evenly arranged circumferentially on the outer edge of the steam drum 220.

[0049] In this embodiment, the steam drum 220 is supported on the water tank 120 by the aforementioned support pipe 300, thereby forming a gap between the steam drum 220 and the water tank 120.

[0050] In some embodiments, the height of the above-mentioned gap is , .

[0051] For example, the height of the above-mentioned gap It is 3cm.

[0052] In actual operation, air is blown into the air supply box 111 by the fan 113, and then distributed to the air intake support plate 212 by multiple distribution pipes 112. Finally, the air enters the combustion chamber through the air intake support plate 212 and mixes with the fuel. Since the end of the combustion chamber away from the air intake support plate 212 is closed by the top cover 213, the fuel combustion flame in the combustion chamber can enter the gap through the air intake support plate 212 and act on the upper surface of the water tank 120, thereby preheating the water in the water tank 120. This allows for the utilization of some heat loss, improving boiler efficiency and significantly saving fuel.

[0053] In order to achieve heat preservation of the steam drum 220 and avoid direct contact between the steam drum 220 and the external environment, in this embodiment, the steam drum 220 is covered by a shell 400, and the water-cooled wall 211 and the flue gas output pipe A2 are arranged through the shell 400.

[0054] The environmentally friendly boiler provided by this utility model has the following specific working process: First, the operator loads fuel into the combustion chamber by opening the top cover 213; the required amount of water for the boiler is injected into the water tank 120 and the steam drum 220 through the water inlet pipe B2; the fuel is then ignited and the top cover 213 is closed; the blower 113 is turned on, and air is blown into the air supply box 111 by the blower 113, and then distributed to the air intake support plate 212 by multiple distribution pipes 112, and finally enters the combustion chamber through the air intake support plate 212 to mix with the fuel; the water in the steam drum 220 comes into contact with the water-cooled wall 211 and absorbs heat from the combustion chamber, and finally forms steam, which is output through the steam output pipe A1.

[0055] The environmentally friendly boiler provided by this utility model has at least the following beneficial effects: First, by providing a distribution pipe 112 connected to the air supply box 111, the air is first distributed through the distribution pipe 112, and then evenly enters the combustion chamber through the intake support plate 212 to improve the mixing effect of air and fuel.

[0056] Secondly, air is blown into the combustion chamber from bottom to top and fully mixed with the fuel, generating sufficient agitation and mixing. This reduces the problem of incomplete combustion caused by insufficient air-fuel mixing, thereby reducing environmental pollution and other environmental problems caused by incomplete combustion.

[0057] Third, the fuel combustion flame in the combustion chamber can enter the gap through the air intake support plate 212 and act on the upper surface of the water tank 120, thereby preheating the water in the water tank 120, and thus utilizing part of the heat loss to improve boiler efficiency and significantly save fuel.

[0058] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. An environmentally friendly boiler, characterized in that, include: The furnace bottom (100) includes an air supply assembly (110) and a water tank (120). A furnace chamber (200) includes a furnace chamber (210) and a steam drum (220); a plurality of support pipes (300) are provided between the steam drum (220) and the water tank (120), and the two ends of the support pipes (300) are respectively connected to the steam drum (220) and the water tank (120); the steam drum (220) is connected to a steam output pipe (A1); the furnace chamber (210) includes a water-cooled wall (211), an air inlet support plate (212) and a top cover (213), the steam drum (220) is arranged around the water-cooled wall (211), and the water-cooled wall (211) is connected to a flue gas output pipe (A2); The air supply assembly (110) includes an air supply box (111) and a plurality of distribution pipes (112) communicating with the air supply box (111). The ends of the plurality of distribution pipes (112) away from the air supply box (111) pass through the water tank (120) and extend toward the air intake support plate (212).

2. The environmentally friendly boiler according to claim 1, characterized in that, The air intake support plate (212) is provided with a plurality of air intake holes (2121) evenly distributed.

3. The environmentally friendly boiler according to claim 2, characterized in that, The air inlet (2121) is circular, rectangular or polygonal in shape.

4. The environmentally friendly boiler according to claim 1, characterized in that, The steam drum (220) is supported on the water tank (120) by a plurality of the support pipes (300), thereby forming a gap between the steam drum (220) and the water tank (120).

5. The environmentally friendly boiler according to claim 4, characterized in that, The height of the gap is , .

6. The environmentally friendly boiler according to claim 1, characterized in that, The support tube (300) is an arc-shaped tube, and the arc-shaped portion of the arc-shaped tube bends away from the steam drum (220).

7. The environmentally friendly boiler according to claim 1, characterized in that, The number of support tubes (300) is 3-6.

8. The environmentally friendly boiler according to claim 1, characterized in that, The air supply assembly (110) also includes a fan (113), which is connected to the air supply box (111) via an air supply duct (B1).

9. The environmentally friendly boiler according to claim 1, characterized in that, The water tank (120) is connected to a water inlet pipe (B2).

10. The environmentally friendly boiler according to claim 1, characterized in that, The steam drum (220) is covered by a shell (400), and the water-cooled wall (211) and the flue gas output pipe (A2) are arranged through the shell (400).

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