High-efficiency segmented arc heater

Abstract

The utility model relates to the technical field of arc heaters, and discloses a high-efficiency segmented arc heater, which comprises a suspension section shell, an end line placing device is arranged on the side surface of the suspension section shell, and an adjusting device is arranged on the back surface of the suspension section shell. The adjusting device comprises a front end connecting plate, a thin pipe fitting, an electric arc root, a connecting ball, a vertical rod piece, a vertical plate, a magnetic attraction block, a magnet frame and a supporting plate, and the front end connecting plate is fixedly connected to the front face of the suspension section shell. According to the high-efficiency segmented arc heater, the adjusting device is arranged, a connecting ball on the back face of the adjusting device is pulled to drive the vertical plate to slide in the mode of being attached to the front face of the supporting plate, and a magnetic attraction structure is matched, so that self-locking can be formed after adjustment, and the vertical plate stays at the close or away position; the arc roots of the segmented arc heater need to be adjusted in the heating process, locking can be conducted in time when every two arc roots are close to each other for adjustment, transverse movement is not likely to happen, the heating efficiency is not affected, and the using effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of electric arc heaters, in particular to a high-efficiency segmented electric arc heater. Background Art

[0002] Arc heaters are ground simulation test equipment for aircraft thermal protection structure assessment, used to simulate the thermal environment encountered by aircraft at medium and low altitudes and high speeds. With the development of model missions, the requirements for the operating parameters of arc heaters in aerodynamic thermal ground simulation tests are becoming higher and higher. The current response strategy is mainly to develop high-power arc heating technology.

[0003] The prior art discloses a high-efficiency segmented arc heater with a publication number of CN219145658U, which relates to the field of ground simulation technology for aircraft thermal protection structure assessment, including: a suspension section with an airflow channel inside for restricting the passage of an arc column; an anode located at the upstream end of the suspension section, with the positive arc root of the arc attached inside; a cathode located at the downstream end of the suspension section, with the negative arc root of the arc attached inside; the anode and the cathode are respectively wrapped with coils, and the coils are used to adjust the posture of the arc root. The technical solution of the utility model is to wrap coils around the anode and the cathode, and use the magnetic field generated when power is turned on to generate a Lorentz force on the arc root, help the arc root to rotate tangentially, and adjust the axial position of the arc root at the same time, so that the arc can rotate through the suspension section along the middle of the airflow channel, and contact the inner wall of the airflow channel as little as possible, thereby reducing the energy loss caused by the inner wall surface and cooling water, and effectively improving the thermal efficiency of the arc heater.

[0004] The above-mentioned arc heater utilizes the magnetic field generated when power is turned on to generate Lorentz force on the arc root, thereby helping the arc root to rotate tangentially, and at the same time adjusting the axial position of the arc root to improve the heating efficiency. However, the above-mentioned segmented arc heater needs to adjust the arc root during the heating process so that the arc roots of two arcs are close to each other and cannot be locked in time when adjusted, which easily causes lateral movement and affects the heating efficiency. The effect during use is not good and needs to be improved. Utility Model Content

[0005] The purpose of the utility model is to provide a high-efficiency segmented electric arc heater to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the utility model provides the following technical solutions: a high-efficiency segmented electric arc heater, comprising a suspension segment shell, a side of the suspension segment shell is provided with an end wire placement device, and a back side of the suspension segment shell is provided with an adjustment device.

[0007] The adjusting device includes a front connecting plate, a thin tube, an arc root, a connecting ball, a vertical pole, a vertical plate, a magnetic block, a magnet frame and a support plate. The front connecting plate is fixedly connected to the front side of the suspension section shell, the vertical pole is fixedly connected to the top of the front connecting plate, the thin tube is fixedly connected to the top of the vertical pole, the connecting ball is slidably connected to the surface of the thin tube, the arc root is fixedly connected to the front side of the connecting ball, the vertical plate is fixedly connected to the back side of the connecting ball, the support plate is fixedly connected to the back side of the suspension section shell, the magnet frame is fixedly connected to the front side of the support plate, and the magnetic block is fixedly connected to the top of the vertical plate.

[0008] Preferably, the end wire placement device includes an anode terminal piece, a first end cover plate, a coil tube and a second end cover plate, the anode terminal piece is fixedly connected to the side of the suspension section shell, and the first end cover plate is fixedly connected to the surface of the anode terminal piece.

[0009] Preferably, the magnetic block is slidably connected to the bottom of the magnet frame, and the magnetic block is magnetically connected to the surface of the magnet frame.

[0010] Preferably, the arc root is slidably connected to the surface of the suspension section shell, and pulling the arc root on the right side of the corresponding position directly pulls the connecting ball on the back side to drive the vertical plate to slide against the front side of the support plate, so that the arc root stays at a close or far position to realize the adjustment function.

[0011] Preferably, one end of the coil tube away from the side of the first end cover plate is connected to the left side of the second end cover plate.

[0012] Preferably, the coil tube is fixedly connected to the side of the first end cover plate, and the second end cover plate is fixedly connected to the surface of the anode terminal piece. The first end cover plate and the second end cover plate serve to connect the supporting coil tube, thereby further improving the thermal efficiency of the arc heater.

[0013] Preferably, the number of the front end connecting plates and the number of the vertical poles are both two, and the two front end connecting plates and the vertical poles are symmetrically distributed on the left and right sides of the front side of the suspension section shell.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The high-efficiency segmented arc heater is provided with an adjustment device. The connecting ball on the back is pulled to drive the vertical plate to slide against the front of the support plate. With the magnetic structure, it can form a self-locking after adjustment, so that it stays in a close or far position. When the segmented arc heater needs to adjust the arc roots during the heating process, the arc roots of the two arcs can be locked in time when they are close to each other, and it is not easy to move sideways to affect the heating efficiency. The effect is good when used.

[0016] 2. The high-efficiency segmented arc heater is provided with an end wire placement device. When in use, coils are wound around the anode and cathode. The magnetic field generated when power is turned on generates a Lorentz force on the arc root, which helps the arc root to rotate tangentially. The first end cover plate and the second end cover plate serve to connect the load-bearing coil tube, further improving the thermal efficiency of the arc heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional front view structure of the utility model;

[0018] Figure 2 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0019] Figure 3 This is a schematic diagram of the overall three-dimensional side view structure of the utility model;

[0020] Figure 4 For this utility model Figure 3 Enlarged structural diagram at B in the middle.

[0021] In the figure: 1. suspension section shell; 2. end line placement device; 201. anode terminal; 202. first end cover; 203. coil tube; 204. second end cover; 3. adjustment device; 301. front end connecting plate; 302. thin tube; 303. arc root; 304. connecting ball; 305. vertical rod; 306. vertical plate; 307. magnetic block; 308. magnet frame; 309. support plate. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-4 , the utility model provides the following technical solutions:

[0024] A high-efficiency segmented electric arc heater comprises a suspension segment shell 1, a side surface of the suspension segment shell 1 is provided with an end wire placement device 2, and a back surface of the suspension segment shell 1 is provided with an adjustment device 3.

[0025] The adjusting device 3 includes a front connecting plate 301, a thin tube 302, an arc root 303, a connecting ball 304, a vertical rod 305, a vertical plate 306, a magnetic block 307, a magnet frame 308 and a support plate 309. The front connecting plate 301 is fixedly connected to the front side of the suspension section shell 1, the vertical rod 305 is fixedly connected to the top of the front connecting plate 301, the thin tube 302 is fixedly connected to the top of the vertical rod 305, the connecting ball 304 is slidably connected to the surface of the thin tube 302, the arc root 303 is fixedly connected to the front side of the connecting ball 304, the vertical plate 306 is fixedly connected to the back side of the connecting ball 304, the support plate 309 is fixedly connected to the back side of the suspension section shell 1, and the magnet frame 308 is fixedly connected On the front side of the support plate 309, the magnetic block 307 is fixedly connected to the top of the vertical plate 306. The number of the front connecting plate 301 and the vertical rod 305 are both two. The two front connecting plates 301 and the vertical rod 305 are symmetrically distributed on the left and right sides of the front side of the suspension section shell 1. The magnetic block 307 is slidably connected to the bottom of the magnet frame 308. The magnetic block 307 is magnetically connected to the surface of the magnet frame 308. The arc root 303 is slidably connected to the surface of the suspension section shell 1. Pull the arc root 303 on the right side of the corresponding position, and directly pull the connecting ball 304 on the back side to drive the vertical plate 306 to slide against the front side of the support plate 309, so that the arc root 303 stays at a close or far position to realize the adjustment function.

[0026] The end wire placement device 2 includes an anode terminal piece 201, a first end cover plate 202, a coil tube 203 and a second end cover plate 204. The anode terminal piece 201 is fixedly connected to the side of the suspension section shell 1, and the first end cover plate 202 is fixedly connected to the surface of the anode terminal piece 201. One end of the coil tube 203 away from the side of the first end cover plate 202 is connected to the left side of the second end cover plate 204. The coil tube 203 is fixedly connected to the side of the first end cover plate 202, and the second end cover plate 204 is fixedly connected to the surface of the anode terminal piece 201. The first end cover plate 202 and the second end cover plate 204 serve to connect the load-bearing coil tube 203, thereby further improving the thermal efficiency of the arc heater.

[0027] When in use, the position of the arc root 303 can be adjusted according to the use requirements, so that the adjacent arc roots 303 can be close to or away from each other to change the heating efficiency. When they need to be close to each other, the arc root 303 on the right side of the corresponding position is pulled, and the connecting ball 304 on the back side is directly pulled to drive the vertical plate 306 to slide against the front of the support plate 309, and the magnetic block 307 slides synchronously with the top of the vertical plate 306, and the magnetic block 307 slides against the bottom of the magnet frame 308 and is magnetically connected to the magnet frame 308, so it can form a self-locking after adjustment to make it stay. In the close or far position, the segmented arc heater needs to adjust the arc root during the heating process so that the arc roots can be locked in time when they are close to each other and are not easy to move horizontally to affect the heating efficiency. The effect is good when in use, and an end wire placement device 2 is provided on the side of the suspension section shell 1. When in use, coils are wound around the anode and the cathode, and the magnetic field generated when power is turned on generates a Lorentz force on the arc root to help the arc root rotate tangentially. The first end cover plate 202 and the second end cover plate 204 serve to connect the load-bearing coil tube 203, further improving the thermal efficiency of the arc heater.

[0028] Although the 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 high-efficiency segmented electric arc heater, comprising a suspension segment housing (1), characterized in that: An end line placement device (2) is provided on the side of the suspension section housing (1), and an adjustment device (3) is provided on the back of the suspension section housing (1); The regulating device (3) comprises a front connecting plate (301), a thin tube (302), an arc root (303), a connecting ball (304), a vertical rod (305), a vertical plate (306), a magnetic block (307), a magnet frame (308) and a supporting plate (309), wherein the front connecting plate (301) is fixedly connected to the front side of the suspension section housing (1), the vertical rod (305) is fixedly connected to the top of the front connecting plate (301), and the thin tube (302) is fixedly connected to the vertical rod ( The connecting ball (304) is slidably connected to the surface of the thin tube (302), the arc root (303) is fixedly connected to the front of the connecting ball (304), the vertical plate (306) is fixedly connected to the back of the connecting ball (304), the support plate (309) is fixedly connected to the back of the suspension section shell (1), the magnet frame (308) is fixedly connected to the front of the support plate (309), and the magnetic attraction block (307) is fixedly connected to the top of the vertical plate (306).

2. A high efficiency segmented arc heater according to claim 1, characterized in that: The end wire placement device (2) comprises an anode terminal piece (201), a first end cover plate (202), a coil tube (203) and a second end cover plate (204); the anode terminal piece (201) is fixedly connected to a side surface of a suspension section shell (1); and the first end cover plate (202) is fixedly connected to a surface of the anode terminal piece (201).

3. A high-efficiency segmented arc heater according to claim 1, characterized in that: The magnetic block (307) is slidably connected to the bottom of the magnet frame (308), and the magnetic block (307) is magnetically connected to the surface of the magnet frame (308).

4. A high-efficiency segmented arc heater according to claim 1, characterized in that: The electric arc root (303) is slidably connected to the surface of the suspension section shell (1).

5. A high-efficiency segmented arc heater according to claim 2, characterized in that: One end of the coil tube (203) away from the side of the first end cover plate (202) is connected to the left side of the second end cover plate (204).

6. A high-efficiency segmented arc heater according to claim 2, characterized in that: The coil tube (203) is fixedly connected to the side surface of the first end cover plate (202), and the second end cover plate (204) is fixedly connected to the surface of the anode terminal (201).

7. A high efficiency segmented arc heater according to claim 1, characterized in that: The number of the front end connection plates (301) and the vertical pole members (305) is two each, and the two front end connection plates (301) and the vertical pole members (305) are symmetrically distributed on the left and right sides of the front side of the suspension section housing (1).

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