An air preheater for a thermal power plant with a functional coating of nickel-titanium alloy

Abstract

The utility model discloses a thermal power plant air preheater with nickel titanium alloy function coating belongs to air preheater technical field, a thermal power plant air preheater with nickel titanium alloy function coating includes the shell, a layer nickel titanium alloy function coating covers the shell outside, the heat exchange subassembly is rotationally arranged in the shell, the shell upper and lower sides are provided with the air inlet, the air outlet, the smoke outlet and the smoke inlet respectively with heat exchange subassembly intercommunication, this technical scheme can set up nickel titanium alloy function coating, can prevent the wall thickness thinning of air preheater because of abrasion, reduce the air preheater's air leakage rate, improve equipment overall integrity, and then reduce the maintenance use cost, can reduce the environmental pollution caused by the abrasion problem of air preheater simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of air preheater technology, specifically an air preheater for thermal power plants with a nickel-titanium alloy functional coating. Background Technology

[0002] An air preheater is a device that uses internal heat exchange fins to preheat the air entering the boiler through the flue gas in the boiler's tail flue. It is used to improve the boiler's heat exchange performance and reduce energy consumption. In a pipe air preheater, heat exchange tubes are used to achieve this heat exchange.

[0003] During the use of air preheaters, wear and corrosion are inevitable. Wear and corrosion thin the preheater plates, reducing the device's stability and making it prone to leaks and damage. When leaks occur, fly ash, sulfur dioxide, and other pollutants carried in the internal flue gas can pollute the surrounding environment.

[0004] Therefore, it is necessary to design an air preheater for thermal power plants with a nickel-titanium alloy functional coating. Utility Model Content

[0005] The purpose of this invention is to provide an air preheater for thermal power plants with a nickel-titanium alloy functional coating to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A thermal power plant air preheater with a nickel-titanium alloy functional coating includes a shell, the outer side of which is covered with a nickel-titanium alloy functional coating, and a heat exchange component rotatably disposed inside the shell. An air inlet, an air outlet, a smoke outlet, and a smoke inlet are respectively opened on the upper and lower sides of the shell and are connected to the heat exchange component.

[0008] As a further embodiment of this utility model: the heat exchange assembly includes a smoke layer and an air layer rotatably disposed inside the outer shell, the smoke layer and the air layer being fixedly connected to each other, the smoke layer being connected to the smoke outlet and the smoke inlet respectively, and the air layer being connected to the air inlet and the air outlet respectively.

[0009] As a further embodiment of this utility model: a rotating shaft is rotatably provided at the center of the outer casing, and a smoke layer and an air layer are fixedly installed on the rotating shaft. One end of the rotating shaft extends to the outside of the outer casing and is fixedly connected to the output end of the motor.

[0010] In summary, the beneficial effects of this utility model are as follows: by setting a nickel-titanium alloy functional coating, it is possible to prevent the wall thickness of the air preheater from being reduced due to wear, reduce the air leakage rate of the air preheater, improve the overall integrity of the equipment, thereby reducing maintenance and operating costs, and at the same time reducing environmental pollution caused by air preheater wear. Attached Figure Description

[0011] Figure 1 This is a structural diagram of an air preheater for a thermal power plant with a nickel-titanium alloy functional coating.

[0012] In the diagram: 1. Outer shell; 2. Air inlet; 3. Smoke outlet; 4. Flue; 5. Air duct; 6. Shaft; 7. Air outlet; 8. Motor; 9. Nickel-titanium alloy functional coating; 10. Smoke inlet. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0014] Please see Figure 1 ,like Figure 1 As shown, an air preheater for thermal power plants with a nickel-titanium alloy functional coating includes a shell 1. Specifically, a dust removal device is provided on the shell 1. The outer side of the shell 1 is covered with a nickel-titanium alloy functional coating 9. A heat exchange assembly is rotatably arranged inside the shell 1. The heat exchange assembly includes a smoke layer 4 and an air layer 5 rotatably arranged inside the shell 1. The smoke layer 4 and the air layer 5 are fixedly connected to each other. The smoke layer 4 is connected to the smoke outlet 3 and the smoke inlet 10 respectively. The air layer 5 is connected to the air inlet 2 and the air outlet 7 respectively. A rotating shaft 6 is rotatably arranged at the center of the shell 1. The smoke layer 4 and the air layer 5 are fixedly installed on the rotating shaft 6. One end of the rotating shaft 6 extends to the outside of the shell 1 and is fixedly connected to the output end of the motor 8. The upper and lower sides of the shell 1 are respectively provided with an air inlet 2, an air outlet 7, a smoke outlet 3, and a smoke inlet 10 that are connected to the heat exchange assembly.

[0015] By setting a nickel-titanium alloy functional coating 5, it is possible to prevent the air preheater from thinning due to wear, reduce the air preheater's air leakage rate, improve the overall integrity of the equipment, thereby reducing maintenance and operating costs, and also reducing environmental pollution caused by air preheater wear.

[0016] It should be noted that the above embodiments are only specific and clear descriptions of the technical solutions and features of this application. Solutions or features that are prior art or common knowledge to those skilled in the art will not be described in detail in the above embodiments.

[0017] Furthermore, the technical solutions of this application are not limited to the above embodiments. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An air preheater for thermal power plants with a nickel-titanium alloy functional coating, characterized in that, Includes an outer shell (1), the outer shell (1) is covered with a nickel-titanium alloy functional coating (9), a heat exchange component is rotatably arranged inside the outer shell (1), and an air inlet (2), an air outlet (7), a smoke outlet (3) and a smoke inlet (10) communicating with the heat exchange component are respectively opened on the upper and lower sides of the outer shell (1).

2. The air preheater for thermal power plants with a nickel-titanium alloy functional coating according to claim 1, characterized in that, The heat exchange assembly includes a smoke layer (4) and an air layer (5) rotatably disposed inside the outer shell (1). The smoke layer (4) and the air layer (5) are fixedly connected to each other. The smoke layer (4) is connected to the smoke outlet (3) and the smoke inlet (10) respectively, and the air layer (5) is connected to the air inlet (2) and the air outlet (7) respectively.

3. The air preheater for thermal power plants with a nickel-titanium alloy functional coating according to claim 2, characterized in that, The outer casing (1) is rotatably provided with a rotating shaft (6) at its center position. A smoke layer (4) and a wind layer (5) are fixedly installed on the rotating shaft (6). One end of the rotating shaft (6) extends to the outside of the outer casing (1) and is fixedly connected to the output end of the motor (8).

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