Novel boiler energy-saving equipment

Abstract

The utility model discloses novel boiler energy-saving equipment, and belongs to the technical field of boiler equipment. Comprising a preheating box and an outer furnace body, the upper end of a combustion chamber is connected with a flue, the top end of the flue extends out of the outer furnace body, one end of the flue is connected with a filter and a heat accumulator, the side face of the heat accumulator is connected with an air inlet pipe and an air outlet pipe, the upper portion of the preheating box is connected with a feeding hopper, and the side face of the preheating box is connected with a fuel nozzle. The lower end of the preheating box is connected with a discharging pipe, the lower end of the discharging pipe is connected to the side face of the combustion chamber through a discharging pipe, and one end of an air outlet pipe is connected to the side face of the preheating box. The preheating box is arranged, coal entering the preheating box is preheated through smoke waste heat exhausted by the combustion chamber, fuel is sprayed to the surface of the coal in the preheating process, the coal can be fully combusted after entering the combustion chamber, the combustion efficiency is greatly improved, and energy conservation and environmental protection are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler equipment, in particular to novel boiler energy-saving equipment. Background Art

[0002] China is the world's largest coal producer and consumer. Coal is China's main primary energy source and an important pillar of the national economy. Coal with a low degree of coalification has a high volatile content. If the combustion conditions are not appropriate, coal with a high volatile content is prone to produce unburned carbon particles, commonly known as "black smoke"; and produces more pollutants such as carbon monoxide, polycyclic aromatic hydrocarbons, and aldehydes, which reduces thermal efficiency and pollutes the environment.

[0003] In the prior art, coal is burned in boiler energy-saving equipment and the circulating water therein is heated by utilizing the heat energy. However, the prior art energy-saving equipment has the following disadvantages: (1) the coal entering the combustion chamber is generally burned directly, so that the coal cannot be fully burned in the boiler, which not only wastes a large amount of coal resources but also causes great pollution to the environment; (2) the flue gas after combustion is filtered and then directly discharged, and the heat of the flue gas cannot be fully utilized. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a novel boiler energy-saving device.

[0005] The utility model is realized by the following technical solutions:

[0006] A novel boiler energy-saving device comprises a preheating box and an outer furnace body, wherein a combustion chamber is arranged inside the outer furnace body, an inner furnace body is arranged inside the combustion chamber, the inner furnace body and the outer furnace body are connected via a connecting pipe, a water inlet pipe is connected to the side of the inner furnace body, a water outlet pipe is connected to the outer side of the outer furnace body, a flue is connected to the upper end of the combustion chamber, the top end of the flue extends to the outside of the outer furnace body, a filter and a heat storage body are respectively connected to one end of the flue, an air inlet pipe and an air outlet pipe are connected to the side of the heat storage body, a feed hopper is connected to the top of the preheating box, a fuel nozzle is connected to the side of the preheating box, a discharge pipe is connected to the lower end of the preheating box, the lower end of the discharge pipe is connected to the side of the combustion chamber via a feed pipe, and one end of the air outlet pipe is connected to the side of the preheating box.

[0007] A sieve plate is provided inside the preheating box.

[0008] The sieve plate is connected to the inner wall of the preheating box at an angle.

[0009] The angle between the sieve plate and the horizontal plane is 30-60°.

[0010] The angle between the sieve plate and the horizontal plane is 30°.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model is provided with a preheating box, which utilizes the waste heat of the smoke exhausted from the combustion chamber to preheat the coal entering the preheating box, and sprays fuel on the surface of the coal during the preheating process, so that it can be fully burned after entering the combustion chamber, which greatly improves the combustion efficiency, saves energy and is environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model.

[0014] In the figure: 1. feed hopper; 2. preheating box; 3. sieve plate; 4. fuel nozzle; 5. discharge pipe; 6. down pipe; 7. outer furnace body; 8. inner furnace body; 9. air inlet pipe; 10. connecting pipe; 11. combustion chamber; 12. water inlet pipe; 13. water outlet pipe; 14. flue; 15. filter; 16. heat storage body; 17. air outlet pipe. DETAILED DESCRIPTION

[0015] The utility model is further described below in conjunction with the accompanying drawings:

[0016] As shown in the attached figure of the instruction manual Figure 1 As shown, a novel boiler energy-saving device comprises a preheating box 2 and an outer furnace body 7, wherein a combustion chamber 11 is arranged inside the outer furnace body 7, wherein an inner furnace body 8 is arranged inside the combustion chamber 11, wherein the inner furnace body 8 is connected to the outer furnace body 7 via a connecting pipe 10, wherein a water inlet pipe 12 is connected to the side of the inner furnace body 8, wherein a water outlet pipe 13 is connected to the outer side of the outer furnace body 7, wherein a flue 14 is connected to the upper end of the combustion chamber 11, wherein the top end of the flue 14 extends to the outside of the outer furnace body 7, wherein a filter 15 and a heat storage body 16 are respectively connected to one end of the flue 14, wherein an air inlet pipe 9 and an air outlet pipe 17 are connected to the side of the heat storage body 16, wherein a feed hopper 1 is connected to the top of the preheating box 2, wherein a fuel nozzle 4 is connected to the side of the preheating box 2, wherein a discharge pipe 5 is connected to the lower end of the preheating box 2, wherein the lower end of the discharge pipe 5 is connected to the side of the combustion chamber 11 via a feeder pipe 6, wherein one end of the air outlet pipe 17 is connected to the side of the preheating box 2.

[0017] A sieve plate 3 is provided inside the preheating box 2 .

[0018] The sieve plate 3 is connected to the inner wall of the preheating box 2 at an angle.

[0019] The sieve plate 3 is at an angle of 30-60° to the horizontal plane.

[0020] The sieve plate 3 forms an angle of 30° with the horizontal plane.

[0021] Example

[0022] A novel boiler energy-saving device comprises a preheating box 2 and an outer furnace body 7, wherein a combustion chamber 11 is arranged inside the outer furnace body 7, an inner furnace body 8 is arranged inside the combustion chamber 11, the inner furnace body 8 is connected to the outer furnace body 7 via a connecting pipe 10, a water inlet pipe 12 is connected to the side of the inner furnace body 8, a water outlet pipe 13 is connected to the outer side of the outer furnace body 7, a flue 14 is connected to the upper end of the combustion chamber 11, the top of the flue 14 extends to the outside of the outer furnace body 7, a filter 15 and a heat storage body 16 are respectively connected to one end of the flue 14, an air inlet pipe 9 and an air outlet pipe 17 are connected to the side of the heat storage body 16, a feed hopper 1 is connected to the top of the preheating box 2, a fuel nozzle 4 is connected to the side of the preheating box 2, a discharge pipe 5 is connected to the lower end of the preheating box 2, the lower end of the discharge pipe 5 is connected to the side of the combustion chamber 11 via a feed pipe 6, and one end of the air outlet pipe 17 is connected to the side of the preheating box 2.

[0023] A sieve plate 3 is provided inside the preheating box 2 .

[0024] The sieve plate 3 is connected to the inner wall of the preheating box 2 at an angle, and the angle between the sieve plate 3 and the horizontal plane is 30°.

[0025] In this embodiment, coal enters the interior of the preheating box 2 from the feed hopper 1, and the heat in the heat storage body 16 enters the interior of the preheating box 2 from the air outlet pipe 17 to preheat the coal. At the same time, the fuel nozzle 4 sprays fuel on the surface of the coal. The preheated coal enters the combustion chamber 11 from the discharge pipe 5 through the down pipe 6 to be burned. The water to be heated is introduced into the inner furnace body 8 from the water inlet pipe 12. The heated water enters the outer furnace body 7 from the connecting pipe 10 and is discharged from the water outlet pipe 13 for utilization.

[0026] The flue gas after combustion is discharged from the flue 14, filtered by the filter 15 in turn, and then passes through the heat storage body 16 to retain the heat in the flue gas in the heat storage body 16. The heat in the heat storage body 16 enters the interior of the preheating box 2 from the air outlet pipe 17 under the action of the wind entering the air inlet pipe 9 to preheat the coal; the waste heat of the flue gas discharged from the combustion chamber is used to preheat the coal entering the preheating box, and fuel is sprayed on the surface of the coal during the preheating process. After entering the combustion chamber, it can be fully burned, which greatly improves the combustion efficiency, saves energy and is environmentally friendly.

[0027] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0029] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated 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 the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0030] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. All equivalent changes and modifications to the shapes, structures, features and spirits described in the claims of the present invention should be included in the claims of the present invention.

Claims

1. A new type of boiler energy-saving equipment, characterized by: The invention comprises a preheating box (2) and an outer furnace body (7), wherein a combustion chamber (11) is arranged inside the outer furnace body (7), an inner furnace body (8) is arranged inside the combustion chamber (11), the inner furnace body (8) and the outer furnace body (7) are connected via a connecting pipe (10), a water inlet pipe (12) is connected to the side of the inner furnace body (8), a water outlet pipe (13) is connected to the outer side of the outer furnace body (7), a flue (14) is connected to the upper end of the combustion chamber (11), the top end of the flue (14) extends to the outside of the outer furnace body (7), and the flue (14) is connected to the outer side of the outer furnace body (7). One end of the channel (14) is respectively connected to a filter (15) and a heat storage body (16); the side of the heat storage body (16) is connected to an air inlet pipe (9) and an air outlet pipe (17); the top of the preheating box (2) is connected to a feed hopper (1); the side of the preheating box (2) is connected to a fuel nozzle (4); the lower end of the preheating box (2) is connected to a discharge pipe (5); the lower end of the discharge pipe (5) is connected to the side of the combustion chamber (11) through a feed pipe (6); and one end of the air outlet pipe (17) is connected to the side of the preheating box (2).

2. The new boiler energy-saving equipment according to claim 1 is characterized in that: A sieve plate (3) is provided inside the preheating box (2).

3. The new boiler energy-saving equipment according to claim 2 is characterized in that: The sieve plate (3) is connected to the inner wall of the preheating box (2) at an angle.

4. The new boiler energy-saving equipment according to claim 2 is characterized in that: The screen plate (3) is at an angle of 30-60° to the horizontal plane.

5. The new boiler energy-saving equipment according to claim 2 is characterized in that: The sieve plate (3) forms an angle of 30° with the horizontal plane.

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