Horizontal boiler with heat preservation and insulation layer

Abstract

The utility model relates to the technical field of boiler equipment, and discloses a horizontal boiler with a heat insulation layer, which comprises a boiler body, and the outer surface of the boiler body is covered with the heat insulation layer; the heat insulation layer comprises an aerogel layer covering the outer surface of the boiler body, an arc-shaped plate covering the outer side of the aerogel layer and a heat insulation support used for connecting the outer surface of the boiler body and the arc-shaped plate. The boiler has the advantages that the aerogel layer is arranged on the outer surface of the boiler body and used for guaranteeing heat insulation and heat preservation of the boiler body; the boiler body and the arc-shaped plate are connected through the heat insulation support, the connection stability of the heat insulation layer is guaranteed, meanwhile, the heat insulation support serves as a thickness reference when aerogel is sprayed, and the thickness of the aerogel layer is conveniently controlled; and the arc-shaped plate is used for reinforcing the heat insulation layer and isolating the contact between air and the aerogel layer.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler equipment, in particular to a horizontal boiler with a thermal insulation layer. Background Art

[0002] A boiler is an energy conversion device that inputs chemical energy or electrical energy of fuel into the boiler and outputs steam, high-temperature water or organic heat carrier with a certain amount of thermal energy through the boiler. The boiler consists of two parts: a pot and a furnace. The pot refers to a water container heated on fire, and the furnace refers to a place where fuel is burned. The hot water or steam generated in the boiler can directly provide the required thermal energy for industrial production and people's lives, or it can be converted into mechanical energy through a steam power device, or the mechanical energy can be converted into electrical energy through a generator.

[0003] However, the furnace body of a traditional boiler usually uses semi-rigid insulation materials, such as composite alumina bricks and alumina comb plates. During long-term use of the boiler, vibration, thermal expansion, stretching and extrusion will cause the semi-rigid insulation materials to crack, resulting in a large loss of heat. At the same time, the inner surface of the furnace body is heated during the heating process, which will cause the temperature of the outer surface of the furnace body to rise sharply, which may pose a risk of scalding.

[0004] In the patent literature, for example, the utility model of the authorization announcement number CN215570381U, entitled A gas boiler support with high heat conversion rate, discloses a gas boiler support with high heat conversion rate, including a boiler body, an aerogel felt layer is arranged on the outer surface of the inner wall of the boiler body, an asbestos layer is arranged on the inner surface of the aerogel felt layer, and the outer surface of the boiler body is insulated by the aerogel felt layer and the asbestos layer. However, in the implementation of this technical solution, two layers of thermal insulation layers need to be arranged on the outer wall of the boiler, and the thickness of the thermal insulation layers is difficult to control. At the same time, the asbestos layer is harmful to the human body and is not conducive to construction. Summary of the invention

[0005] In order to overcome the heat loss and scalding risks that may exist in the boilers in the prior art, the utility model proposes a horizontal boiler with a heat preservation and insulation layer, and its detailed technical solution is as follows:

[0006] A horizontal boiler with a thermal insulation layer comprises a boiler body, the outer surface of the boiler body is covered with a thermal insulation layer; the thermal insulation layer comprises an aerogel layer covering the outer surface of the boiler body, an arc plate covering the outside of the aerogel layer, and an insulation support for connecting the outer surface of the boiler body and the arc plate.

[0007] Furthermore, the thermal insulation support is a rectangular strip structure, which is welded and fixed along the length direction of the outer surface of the boiler body; the thickness of the aerogel layer is consistent with the height of the thermal insulation support.

[0008] Furthermore, the arc plate is a curved panel with an arc shape and a flat surface.

[0009] Furthermore, it also includes a burner located at the front end of the boiler body, an energy-saving device and a chimney located above the boiler body; the fuel gas is ignited by the burner and burns in the boiler body to generate high-temperature flue gas, and the high-temperature flue gas enters the energy-saving device through the boiler body and is then discharged from the chimney connected to the energy-saving device.

[0010] Furthermore, the boiler body includes a hollow cylindrical shell, a combustion chamber embedded in the shell, a convection smoke pipe fixedly arranged inside the shell for connecting the combustion chamber and the energy-saving device, and a heat insulation layer located on the outer surface of the shell.

[0011] The beneficial effects of the utility model are as follows: the utility model provides an aerogel layer on the outer surface of the boiler body to ensure the thermal insulation of the boiler body; provides a thermal insulation support to connect the boiler body and the arc plate to ensure the connection stability of the thermal insulation layer, and at the same time the thermal insulation support is used as a thickness reference when spraying aerogel, so as to facilitate the control of the thickness of the aerogel layer; the arc plate is used to reinforce the thermal insulation layer and at the same time cut off the contact between air and the aerogel layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a horizontal boiler of the utility model.

[0013] Figure 2 It is a structural schematic diagram of a boiler body of the utility model.

[0014] Figure 3 It is a structural schematic diagram of the thermal insulation layer of the utility model.

[0015] in:

[0016] 100—Boiler body; 200—Burner; 300—Energy-saving device; 400—Chimney;

[0017] 110 - boiler shell; 120 - combustion chamber; 130 - thermal insulation layer; 140 - convection smoke pipe;

[0018] 131 - aerogel layer; 132 - curved plate; 133 - thermal insulation support. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] A horizontal boiler with a thermal insulation layer, such as Figure 1 As shown, it is a fire tube horizontal boiler, including a boiler body 100, a burner 200, an energy-saving device 300 and a chimney 400. The gas is ignited by the burner 200 and burns in the boiler body 100. The high-temperature flue gas generated enters the energy-saving device 300 at the rear through the convection smoke pipe in the boiler body 100 and is discharged through the chimney 400. Figure 1 In the embodiment, the burner 200 is located at the front end of the boiler body 100 , and the energy-saving device 300 is connected to the chimney 400 and is located above the boiler body 100 .

[0021] The structure of the boiler body 100 is as follows: Figure 2 As shown, it includes a hollow cylindrical boiler shell 110, a combustion chamber 120 embedded in the boiler shell 110, a convection smoke pipe 140 fixedly arranged inside the boiler shell 110 for connecting the combustion chamber 120 and the energy-saving device 300, and a heat insulation layer 130 located on the outer surface of the boiler shell 110. The combustion chamber 120 is an irregular columnar structure for gas combustion. A closed accommodation space for water is formed between the outer wall of the combustion chamber 120 and the inner wall of the boiler shell 110. Heat is transferred to the water inside the boiler shell 110 through the outer wall of the combustion chamber 120. The combustion system of the fire tube horizontal boiler is arranged in the boiler shell 110, so that the inner wall and internal components of the boiler shell 110 are directly heated. Therefore, during the heating process, the outer wall of the boiler shell 110 will heat up rapidly due to heat conduction.

[0022] The structure of the heat insulation layer 130 is as follows: Figure 3As shown, it includes an aerogel layer 131 covering the outer surface of the pot shell 110, an arc plate 132 covering the outer side of the aerogel layer 131, and a heat insulation support 133 for connecting the outer wall of the pot shell 110 and the arc plate 132. During construction, the heat insulation support 133 can be welded and fixed to the outer wall of the pot shell 110, and the aerogel layer 131 is evenly coated on the outer wall of the pot shell 110 between the two heat insulation supports 133. The thickness of the aerogel layer 131 is as consistent as possible with the height of the heat insulation support 133, and then the arc plate 132 is connected to the heat insulation support 133 through a connector. When the aerogel layer is coated, the thickness of the aerogel layer 131 can be guaranteed to a certain extent due to the presence of the heat insulation support 133 as a reference. Since aerogel can absorb and isolate oxygen and water vapor in the air and reduce corrosion on the outer surface of the pot shell 110, the arc plate 132 is mainly used to reinforce the heat insulation layer 130 and isolate the contact between the aerogel layer 131 and the air. The heat-insulating support 133 is a rectangular strip structure, which is welded and fixed along the length direction of the outer wall of the pot shell 110. The arc plate 132 is a curved panel with an arc shape and a flat surface. The aerogel layer 131 can be made by spraying aerogel heat-insulating paint. During the construction process, it can be applied by brush or high-pressure spray gun. When spraying by machine, it needs to be diluted with clean water, and the dilution ratio is within 10%; at least two coats are required when brushing, and the second coat needs to be at least 2 hours apart. After brushing, it needs to be left to stand for at least 24 hours.

[0023] The boiler body 100 is also provided with a water inlet and a steam outlet (not marked in the drawings). The water inlet is used to replenish water in the boiler body 100. After combustion by the burner 200, the boiler body 100 is filled with saturated water and saturated steam, and the saturated steam is discharged through the steam outlet.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A horizontal boiler with a thermal insulation layer, comprising a boiler body, It is characterized in that The outer surface of the boiler body is covered with a heat insulation layer; the heat insulation layer includes an aerogel layer covering the outer surface of the boiler body, an arc plate covering the outside of the aerogel layer, and a heat insulation support for connecting the outer surface of the boiler body and the arc plate.

2. The horizontal boiler with thermal insulation layer according to claim 1, It is characterized in that The thermal insulation support is a rectangular strip structure and is welded and fixed along the length direction of the outer surface of the boiler body; the thickness of the aerogel layer is consistent with the height of the thermal insulation support.

3. The horizontal boiler with thermal insulation layer according to claim 1, It is characterized in that The arc plate is a curved panel with an arc shape and a flat surface.

4. A horizontal boiler with a thermal insulation layer according to any one of claims 1 to 3, It is characterized in that The horizontal boiler is a fire tube horizontal boiler, and also includes a burner located at the front end of the boiler body, an energy-saving device and a chimney located above the boiler body; the fuel gas is ignited by the burner and burns in the boiler body to generate high-temperature flue gas, and the high-temperature flue gas enters the energy-saving device through the boiler body and is then discharged from the chimney connected to the energy-saving device.

5. The horizontal boiler with thermal insulation layer according to claim 4, It is characterized in that The boiler body includes a hollow cylindrical shell, a combustion chamber embedded in the shell, a convection smoke pipe fixedly arranged inside the shell for connecting the combustion chamber and the energy-saving device, and a heat insulation layer located on the outer surface of the shell.

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