Special electric heater for invisible coating repairing equipment

Abstract

The utility model relates to the technical field of airplane coating repairing, in particular to a special electric heater for stealth coating repairing equipment, which comprises a heater shell, a handle is fixedly connected to the side face of the heater shell, and a top cover is fixedly hinged to one side, close to the handle, of the top of the heater shell. An air inlet is fixedly formed in the lower half portion of the heater shell, an air outlet is fixedly formed in the left side of the heater shell, an air outlet is fixedly formed in the left side of the heater inner container, an air outlet pipe penetrates through the interior of the air outlet, and the heater inner container is movably connected to the interior of the heater shell. According to the improved special electric heater for the stealth coating repairing equipment, three-section independent temperature control stepped heating is adopted, the heating rate is high, and air outlet temperature control is more accurate; the improved electric heater is of an integrated design and is integrated on the heating bag main machine, the special electric heater is isolated from the air inlet unit and the electric control unit in a heat preservation, heat insulation and sealing mode, and moving and transporting are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of aircraft coating repair, in particular to a special electric heater for stealth coating repair equipment. Background Art

[0002] With the development of my country's aviation industry, various aircraft patterns have emerged in the air in major airlines. The surface coating of aircraft has become the business card of airlines, reflecting the brand concept of airlines. In addition, due to factors such as weather, environment, and air complexity, the surface coating of aircraft will gradually age or fall off over time and also need to be repainted. According to aircraft maintenance requirements, aircrafts are overhauled after a certain number of years of flight. In addition to the old coating, new coatings are sprayed after repairing the defects of the fuselage. Therefore, with the continuous increase in the number of aircraft, the repainting of surface coatings has become the main business of aircraft maintenance companies, and it accounts for an increasing proportion of aircraft maintenance business.

[0003] In the local repair of aircraft coatings, the repaired paint surface needs to be quickly dried with hot air. The air volume and temperature of the hot air directly affect the drying speed of the paint surface. It is crucial that the hot air temperature is constant and not affected by the ambient temperature.

[0004] In the process of realizing the utility model, the inventors found that the prior art had the following problems: most of the electric heaters on the market use single-stage temperature control heating, which has a relatively low heating rate and low efficiency, and will increase electricity costs. The design of single-stage temperature control heating causes the air outlet temperature control of the electric heater to be not precise enough; and some electric heaters have a relatively complex structure, which is not convenient to move and transport. Utility Model Content

[0005] The purpose of the utility model is to provide an electric heater specially used for stealth coating repair equipment, so as to solve the problems in the above-mentioned background technology that most of the electric heaters have a relatively low heating rate, the air outlet temperature control is not precise enough, and some electric heaters have a relatively complex structure and are not convenient to move and transport. To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electric heater dedicated to stealth coating repair equipment, comprising a heater shell, a handle fixedly connected to the side of the heater shell, a top cover fixedly hinged on the side of the top of the heater shell near the handle, an air inlet fixedly opened on the lower half of the heater shell, an air outlet fixedly opened on the left side of the heater shell, a heater liner movably connected to the inside of the heater shell, an air outlet fixedly opened on the left side of the heater liner, an air outlet pipe running through the inside of the air outlet, two handles fixedly connected to the top of the heater liner, a thermal insulation layer fixedly provided between the heater shell and the heater liner, nine U-shaped heating rods included in the heater liner, a temperature sensor fixedly connected between every three of the nine U-shaped heating rods, three heating chambers fixedly provided between the inner wall of the heater liner and an independent space formed by every three U-shaped heating rods, two partitions fixedly connected between the three heating chambers, and a loosening screw is movably connected between the air outlet opened on the heater liner and the air outlet pipe.

[0006] Further preferably, an independent space is formed between every three U-shaped heating rods.

[0007] Further preferably, the air outlet fixedly opened on the left side of the heater shell, the air outlet fixedly opened on the left side of the heater inner tank and the air outlet pipe are coaxial.

[0008] Further preferably, the two partitions are designed to be reversed and are respectively fixedly connected to the top and bottom of the heater inner tank.

[0009] Further preferably, the outside of each of the three heating chambers is filled with industrial thermal insulation cotton for insulation.

[0010] Further preferably, three U-shaped fin heating rods and one temperature-controlling thermocouple are evenly distributed in each of the three heating chambers.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] In the utility model, the dedicated electric heater adopts three-stage independent temperature control step heating, with high heating rate and more accurate air outlet temperature control; the dedicated electric heater cavity is a rectangular parallelepiped, and the interior is divided into three heating cavities by a baffle. Three U-shaped fin heating rods and a temperature control thermocouple are evenly distributed in each cavity. The temperature of the air point can be stable and adjustable through a special program temperature control; the utility model is an integrated design, and the dedicated electric heater is integrated into the heating package host. The dedicated electric heater is isolated from the air intake unit and the electrical control unit by heat preservation, insulation and sealing. The structure is compact and light, and it is easy to move and transport. At the same time, the upper cover of the heater is detachable for easy maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the main internal structure of the utility model;

[0015] Figure 3 For this utility model Figure 1 A in the figure is an enlarged structural diagram.

[0016] In the figure: 1. Heater shell; 2. Handle; 3. Top cover; 4. Heater liner; 5. Carrying handle; 6. Heating rod; 7. Temperature sensor; 8. Partition; 9. Heating chamber; 10. Thermal insulation layer; 11. Air inlet; 12. Air outlet; 13. Air outlet duct; 14. Anti-loosening screw. DETAILED DESCRIPTION

[0017] 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 technical personnel in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figures 1 to 3The utility model provides a technical solution: an electric heater for stealth coating repair equipment, comprising a heater shell 1, a handle 2 is fixedly connected to the side of the heater shell 1, a top cover 3 is fixedly hinged on the top of the heater shell 1 near the handle 2, an air inlet 11 is fixedly opened on the lower half of the heater shell 1, an air outlet 12 is fixedly opened on the left side of the heater shell 1, a heater liner 4 is movably connected inside the heater shell 1, an air outlet 12 is fixedly opened on the left side of the heater liner 4, an air outlet 13 is passed through the air outlet 12, and the heater Two handles 5 are fixedly connected to the top of the inner tank 4, a thermal insulation layer 10 is fixedly provided between the heater shell 1 and the heater inner tank 4, the heater inner tank 4 includes nine U-shaped heating rods 6, a temperature sensor 7 is fixedly connected between every three of the nine U-shaped heating rods 6, three heating chambers 9 are fixedly provided between the inner wall of the heater inner tank 4 and an independent space formed by every three U-shaped heating rods 6, two partitions 8 are fixedly connected between the three heating chambers 9, and a movable threaded connection between the air outlet 12 opened on the heater shell 1 and the air outlet pipe 13 is provided with a locking screw 14.

[0019] In this embodiment, Figure 1 As shown, an independent space is formed between every three U-shaped heating rods 6, that is, three-stage independent temperature-controlled stepped heating is adopted, the heating rate is high, and the air outlet temperature control is more precise.

[0020] In this embodiment, Figure 1 As shown, the air outlet 12 fixedly opened on the left side of the heater housing 1 , the air outlet 12 fixedly opened on the left side of the heater inner tank 4 and the air outlet pipe 13 are coaxial.

[0021] In this embodiment, Figure 3 As shown, the two partitions 8 are of reverse design and are respectively fixedly connected to the top and bottom of the heater inner tank 4, and the electric heater cavity is a rectangular parallelepiped, which is divided into three heating chambers 9 by baffles. The reverse design between the two partitions 8 can make the air sucked into the heating chamber 9 flow in an S shape. Because all the heating rods 6 are covered with heat dissipation fins, the heating efficiency of the gas is very high.

[0022] In this embodiment, Figure 1 As shown, the outside of each of the three heating chambers 9 is filled with industrial thermal insulation cotton for insulation, so that when the air is heated in the heating chamber 9, it plays a double insulation role from outside the heating chamber 9, so as to ensure that the electric heater dedicated to the stealth coating repair equipment has a better insulation effect.

[0023] In this embodiment, Figure 1As shown, a U-shaped fin heating rod 6 and a temperature-controlled thermocouple are evenly distributed in each of the three heating chambers 9. The U-shaped fin heating rod 6 can be used to heat the flowing air, which is beneficial for quickly drying the paint surface of the equipment after repair. The temperature-controlled thermocouple can control the temperature through a special program, which is convenient for adjusting the temperature stability of the gas use point.

[0024] The use method and advantages of the utility model: The working process of the electric heater specially used for stealth coating repair equipment is as follows:

[0025] like Figure 1 , Figure 2 and Figure 3 As shown, first, the user stands next to the equipment that needs to have a local repair of the coating, takes out the electric heater dedicated to the stealth coating repair equipment and prepares to start the work of quickly hot air drying the repaired equipment paint surface. It should be noted that the staff needs to hold the handle 2 with both hands to move the heater, and then place the equipment stably on the platform to ensure that it will not shake. The staff opens the top cover 3, firmly grasps the handle 5 with both hands, lifts the heater liner 4, and gently puts the heater liner 4 into the heater shell 1 from the opened top cover 3. Since the heater liner 4 is fragile, it must be done with caution. In this process, it should be noted that the staff should open the heating The air inlet and outlet 12 on the inner tank 4 and the air inlet and outlet 12 opened on the heater shell 1 are aligned respectively to facilitate the next step of installation. Then the staff takes out the air inlet and outlet ducts 13 with sizes matching the air inlet and outlet 12, inserts them from the air inlet and outlet 12, and then uses the anti-loosening screws 14 to install them in the corresponding positions, so that the air outlet duct 13 and the heater shell 1 are movably connected through the anti-loosening screws 14, and the air inlet duct and the heater shell 1 are also movably connected through the anti-loosening screws 14. Finally, after the special electric heater for stealth coating repair equipment is aligned with the coating equipment that needs to be repaired, the power is turned on. The power will drive the heater to work and start local repair.

[0026] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An electric heater for stealth coating repair equipment, comprising a heater housing (1), characterized in that: A handle (2) is fixedly connected to the side of the heater shell (1); a top cover (3) is fixedly hinged on the top of the heater shell (1) near the handle (2); an air inlet (11) is fixedly provided on the lower half of the heater shell (1); an air outlet (12) is fixedly provided on the left side of the heater shell (1); a heater liner (4) is movably connected to the interior of the heater shell (1); an air outlet (12) is fixedly provided on the left side of the heater liner (4); an air outlet pipe (13) runs through the interior of the air outlet (12); two handles (5) are fixedly connected to the top of the heater liner (4); A heat preservation and insulation layer (10) is fixedly provided between the heater shell (1) and the heater inner shell (4); the heater inner shell (4) includes nine U-shaped heating rods (6); a temperature sensor (7) is fixedly connected between every three of the nine U-shaped heating rods (6); three heating chambers (9) are fixedly provided between the inner wall of the heater inner shell (4) and an independent space formed by every three U-shaped heating rods (6); two partitions (8) are fixedly connected between the three heating chambers (9); and a locking screw (14) is provided in a movable threaded connection between the air outlet (12) provided on the heater shell (1) and the air outlet pipe (13).

2. The electric heater for stealth coating repair equipment according to claim 1 is characterized in that: An independent space is formed between every three U-shaped heating rods (6).

3. The electric heater for stealth coating repair equipment according to claim 1 is characterized in that: The air outlet (12) fixedly opened on the left side of the heater shell (1), the air outlet (12) fixedly opened on the left side of the heater inner tank (4) and the air outlet pipe (13) are coaxial.

4. The electric heater for stealth coating repair equipment according to claim 1 is characterized in that: The two partitions (8) are designed in reverse and are respectively fixedly connected to the top and bottom of the heater inner tank (4).

5. The electric heater for stealth coating repair equipment according to claim 2 is characterized in that: The outside of each of the three heating chambers (9) is filled with industrial thermal insulation cotton for thermal insulation.

6. The electric heater for stealth coating repair equipment according to claim 1 is characterized by: Three U-shaped fin heating rods (6) and a temperature-controlling thermocouple are evenly distributed in each of the three heating chambers (9).

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