Water-cooling heater

Abstract

The utility model belongs to the technical field of airplane structural strength tests, and relates to a water-cooled heater. The structure comprises a framework supporting barrel section (1) and flow guide strips (5), the framework supporting barrel section (1) comprises an inner barrel and an outer barrel, a first cooling channel is formed between the inner barrel and the outer barrel, and the first cooling channel is connected with a first water inlet and outlet pipe (11) at the end of the framework supporting barrel section (1); the flow guide strips (5) are arc-shaped hollow sections, the arc-shaped flow guide strips (5) define an annular structure, the annular structures are fixed to different axial positions of the outer side of the framework supporting barrel section (1), a second cooling channel is formed in each flow guide strip (5) and connected with a second water inlet and outlet pipe (12) at the end of the framework supporting barrel section (1), and the flow guide strips (5) are connected with a power source through the second water inlet and outlet pipes (12). The quartz lamp tubes (10) are erected on the flow guide strips (5). The cooling effect on the quartz lamp tube is improved, so that the test can be stably carried out for a long time.

Description

Technical Field

[0001] This application belongs to the field of aircraft structural strength testing technology, and specifically relates to a water-cooled heater. Background Technology

[0002] To conduct a thermal strength test on an aircraft engine casing, a stable 550°C thermal load needs to be provided for approximately 5 hours.

[0003] When conducting thermal strength tests on aircraft engine casings, existing heaters are used to provide a 550°C heat load. However, due to the thermal deformation of the heater structure, the quartz lamp used for heating may break and become damaged, making it difficult for the heater to work stably for a long time, resulting in low test efficiency. Utility Model Content

[0004] To solve at least one of the above-mentioned technical problems, this application provides a water-cooled heater, mainly comprising:

[0005] The skeleton support cylinder section includes an inner cylinder and an outer cylinder, and a first cooling channel is formed between the inner cylinder and the outer cylinder. The first cooling channel is connected to a first inlet and outlet water pipe at the end of the skeleton support cylinder section.

[0006] The guide strip is an arc-shaped hollow section. Multiple arc-shaped guide strips form a ring structure. The multiple ring structures are fixed at different axial positions on the outside of the skeleton support cylinder section. A second cooling channel is formed inside the guide strip. The second cooling channel is connected to a second inlet and outlet water pipe at the end of the skeleton support cylinder section. The guide strip is connected to a power source through the second inlet and outlet water pipe to supply power to the quartz lamp tubes installed between the guide strips at different axial positions.

[0007] Preferably, the skeleton support cylinder section has an annular guide strip bracket on its outer ring, the guide strip bracket has a cavity communicating with the first cooling channel, and the guide strip is fixed on the guide strip bracket.

[0008] Preferably, the frame support cylinder is provided with an upper tray and a lower tray at both ends, and the upper tray and the lower tray are used to fix and support the first inlet and outlet water pipe and the second inlet and outlet water pipe.

[0009] Preferably, the upper and lower trays are further provided with power cable fixing posts, which are threaded onto the upper or lower trays. The power cable fixing posts are connected to the power cables and connected to the second inlet and outlet water pipes through the flow-guiding double-hole connecting piece.

[0010] Preferably, the outer arc surface of the guide strip is provided with multiple grooves. After the power terminal of the quartz lamp tube is inserted into the groove, the groove opening is sealed by a screw that matches the thread at the groove opening.

[0011] Preferably, the annular structure enclosed by the guide strips comprises four rings along the axial direction of the skeleton support cylinder segment. Two annular structures are located at the ends of the skeleton support cylinder segment, and the other two annular structures are located in the middle of the skeleton support cylinder segment. The grooves of the guide strips of the two annular structures located in the middle of the skeleton support cylinder segment are staggered in the circumferential direction, so that a first set of quartz lamps is installed between the annular structure located on the left side of the middle and the annular structure at the right end of the skeleton support cylinder segment. Similarly, a second set of quartz lamps is installed between the annular structure located on the right side of the middle and the annular structure at the left end of the skeleton support cylinder segment.

[0012] Preferably, the two annular guide strips located in the middle of the skeleton support cylinder section are connected to the second inlet and outlet water pipes through hollow external thread rods. The second inlet and outlet water pipes are also hollow external thread rods. The two hollow external thread rods are connected by a long nut with an internal thread through hole, and are electrically connected by a double-hole cross-connecting piece for guiding flow.

[0013] Preferably, the hollow external threaded rod is fitted with an insulating terminal when passing through the guide bar bracket, the upper tray, and the lower tray.

[0014] This application improves the cooling effect on quartz lamps, enabling heating tests to run stably for extended periods. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the water-cooled heater of this application.

[0016] Figure 2 This application Figure 1 A cross-sectional view of the cooling channel structure of the skeleton support cylinder section in the embodiment shown.

[0017] Figure 3 This is a schematic diagram of the guide bar structure.

[0018] Among them, 1-frame support cylinder section, 2-flow guide strip bracket, 3-upper tray, 4-lower tray, 5-flow guide strip, 6-long nut with internal thread through hole, 7-flow guide double hole bridging connecting piece, 8-flow guide double hole connecting piece, 9-power cable fixing post, 10-quartz lamp tube, 11-first inlet and outlet water pipe, 12-second inlet and outlet water pipe, 13-insulating terminal. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, not all, of the embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0020] This application provides a water-cooled heater, such as Figures 1 to 3 As shown, it mainly includes:

[0021] The skeleton support cylinder section 1 includes an inner cylinder and an outer cylinder, and a first cooling channel is formed between the inner cylinder and the outer cylinder. The first cooling channel is connected to a first inlet and outlet water pipe 11 at the end of the skeleton support cylinder section 1.

[0022] The guide strip 5 is an arc-shaped hollow section. Multiple arc-shaped guide strips 5 form a ring structure. The multiple ring structures are fixed at different axial positions on the outside of the skeleton support cylinder section 1. A second cooling channel is formed inside the guide strip 5. The second cooling channel is connected to a second inlet and outlet water pipe 12 at the end of the skeleton support cylinder section 1. The guide strip 5 is connected to a power source through the second inlet and outlet water pipe 12 to supply power to the quartz lamp tube 10 installed between the guide strips 5 at different axial positions.

[0023] This application provides two cooling channels. The first cooling channel is used to cool the entire frame support cylinder section 1. (Refer to...) Figure 1 Cooling water is introduced into the first inlet / outlet pipe 11 at the end. The second cooling channel cools the guide strip 5 supporting the quartz lamp tube 10. Cooling water is introduced into the second inlet / outlet pipe 12 at the end. In addition, the second inlet / outlet pipe 12 not only needs to provide a cooling channel, but also needs to be conductive to heat the quartz lamp tube 10. Therefore, the second inlet / outlet pipe 12 needs to be connected to a power source.

[0024] The result of guide strip 5 is as follows Figure 3 As shown, its radius is typically 45°, 60°, or 90°. For example, when the radius is 90°, Figure 1In the middle, four guide strips 5 enclose a ring structure, each guide strip having a separate cooling water passage. Along the axial direction of the skeleton support cylinder section 1, multiple ring structures can be set, usually in even numbers. Every two ring structures form a pair, on which a quartz lamp tube 10 is mounted. This pair of ring structures provides the positive and negative terminals for the quartz lamp tube 10 to be energized. When the quartz lamp tube 10 is energized, it emits light and heat to achieve thermal load loading.

[0025] In some alternative embodiments, the skeleton support cylinder segment 1 is provided with an annular guide strip bracket 2 on its outer ring, the guide strip bracket 2 having a cavity communicating with the first cooling channel, and the guide strip 5 is fixed on the guide strip bracket 2.

[0026] In this embodiment, reference Figure 1 The internal cavities of the skeleton support cylinder section 1 and the guide strip bracket 2 are connected by through holes. There are multiple through holes, which are distributed circumferentially along the outer cylinder section of the skeleton support cylinder section 1. The guide strip bracket 2 is provided with a slot for installing the guide strip 5.

[0027] In some alternative embodiments, the two ends of the frame support cylinder 1 are respectively provided with an upper tray 3 and a lower tray 4, which are used to fix and support the first inlet / outlet water pipe 11 and the second inlet / outlet water pipe 12.

[0028] In some optional embodiments, the upper tray 3 and the lower tray 4 are further provided with power cable fixing posts 9. The power cable fixing posts 9 are threadedly connected to the upper tray 3 or the lower tray 4. The power cable fixing posts 9 are connected to the power cable and connected to the second inlet and outlet water pipes 12 through the flow guide double hole connecting piece 8.

[0029] refer to Figure 1 The upper tray 3 and the lower tray 4 are mainly for supporting the two water inlet pipes and the power cable fixing post 9. The power cable fixing post 9 is solid and has external threads to connect the upper tray 3 and the lower tray 4. The power cable fixing post 9 can prevent the second water inlet and outlet pipe 12 connected to the guide strip 5 from being damaged by the power cable.

[0030] The upper pallet 3 and the lower pallet 4 are also equipped with double lugs for lifting, installation or transportation.

[0031] In some alternative implementations, refer to Figure 1 and Figure 3 The outer arc surface of the guide strip 5 is provided with multiple grooves. After the power terminal of the quartz lamp tube 10 is inserted into the groove, the groove opening is sealed by a screw that matches the thread at the groove opening.

[0032] In some alternative embodiments, the annular structure enclosed by the guide strips 5 includes four ring structures along the axial direction of the skeleton support cylinder section 1. Two ring structures are located at the ends of the skeleton support cylinder section 1, and the other two ring structures are located in the middle of the skeleton support cylinder section 1. The grooves of the guide strips 5 of the two annular structures located in the middle of the skeleton support cylinder section 1 are staggered in the circumferential direction, so that a first set of quartz lamp tubes 10 is installed between the annular structure located on the left side of the middle and the annular structure at the right end of the skeleton support cylinder section 1. Similarly, a second set of quartz lamp tubes 10 is installed between the annular structure located on the right side of the middle and the annular structure at the left end of the skeleton support cylinder section 1.

[0033] refer to Figure 1 From left to right, a set of quartz lamps is installed between the first and third ring structures, and another set of quartz lamps is installed between the second and fourth ring structures.

[0034] In some alternative embodiments, the two annular guide strips 5 located in the middle of the skeleton support cylinder section 1 are connected to the second inlet and outlet water pipes 12 through hollow external thread rods. The second inlet and outlet water pipes 12 are also hollow external thread rods. The two hollow external thread rods are connected through the internal thread through hole long nut 6, and are electrically connected through the guide double hole bridging connecting piece 7.

[0035] In this embodiment, the second inlet / outlet pipe 12 is typically a hollow externally threaded rod, and as shown in the example... Figure 3 As shown, it is usually fixed on the guide strip 5, for Figure 1 The guide strips 5 at both ends of the skeleton support cylinder section 1 shown have hollow external threaded rods that pass through the guide strip bracket 2 and the upper tray 3 and lower tray 4, directly serving as the second inlet / outlet water pipe 12, which can be connected to the power cable fixing post 9. However, the hollow external threaded rods on the guide strips 5 in the middle of the skeleton support cylinder section 1 are not long enough to extend to the upper tray 3 and lower tray 4 of the skeleton support cylinder section 1. Therefore, multiple hollow external threaded rods are also fixed on the upper tray 3 and lower tray 4, and they are connected to the hollow external threaded rods on the guide strips 5. They are connected by internally threaded through-hole long nuts 6. At the same time, in order to solve the problem of poor conductivity of the internally threaded through-hole long nuts 6, a current path is achieved between the hollow external threaded rods at both ends of the internally threaded through-hole long nuts 6 through a double-hole bridging connector 7. In addition, in terms of improving conductivity, the guide strips 5, internally threaded through-hole long nuts 6, double-hole bridging connectors 7 and 8, and power cable fixing posts 9 of this application are all made of brass. In addition, the heater frame is made of carbon steel.

[0036] In some alternative implementations, such as Figure 1 As shown, the hollow external threaded rod is fitted with an insulating terminal 13 when passing through the guide bar bracket 2, the upper tray 3, and the lower tray 4 to achieve insulation.

[0037] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A water-cooled heater, characterized in that, include: The skeleton support cylinder section (1) includes an inner cylinder and an outer cylinder, and a first cooling channel is formed between the inner cylinder and the outer cylinder. The first cooling channel is connected to a first inlet and outlet water pipe (11) at the end of the skeleton support cylinder section (1). The guide strip (5) is an arc-shaped hollow section. Multiple arc-shaped guide strips (5) form a ring structure. Multiple ring structures are fixed at different axial positions on the outside of the skeleton support cylinder section (1). A second cooling channel is formed inside the guide strip (5). The second cooling channel is connected to a second inlet and outlet water pipe (12) at the end of the skeleton support cylinder section (1). The guide strip (5) is connected to a power source through the second inlet and outlet water pipe (12) to supply power to the quartz lamp tube (10) erected between the guide strips (5) at different axial positions.

2. The water-cooled heater as described in claim 1, characterized in that, The skeleton support cylinder section (1) has an annular guide strip bracket (2) on its outer ring. The guide strip bracket (2) has a cavity that connects to the first cooling channel. The guide strip (5) is fixed on the guide strip bracket (2).

3. The water-cooled heater as described in claim 2, characterized in that, The frame support cylinder section (1) is provided with an upper tray (3) and a lower tray (4) at both ends, and the upper tray (3) and the lower tray (4) are used to fix and support the first inlet and outlet water pipe (11) and the second inlet and outlet water pipe (12).

4. The water-cooled heater as described in claim 3, characterized in that, The upper tray (3) and lower tray (4) are also provided with power cable fixing posts (9). The power cable fixing posts (9) are connected to the upper tray (3) or lower tray (4) by threads. The power cable fixing posts (9) are connected to the power cable and connected to the second inlet and outlet water pipes (12) through the flow guide double hole connecting piece (8).

5. The water-cooled heater as described in claim 4, characterized in that, The outer arc surface of the guide strip (5) is provided with multiple grooves. After the power terminal of the quartz lamp tube (10) is inserted into the groove, the groove opening is sealed by a screw that matches the thread at the groove opening.

6. The water-cooled heater as described in claim 5, characterized in that, The annular structure enclosed by the guide strips (5) includes four ring structures along the axial direction of the skeleton support cylinder section (1). Two of the ring structures are located at the ends of the skeleton support cylinder section (1), and the other two ring structures are located in the middle of the skeleton support cylinder section (1). The grooves of the guide strips (5) of the two annular structures located in the middle of the skeleton support cylinder section (1) are staggered in the circumferential direction so that the first set of quartz lamp tubes (10) is installed between the annular structure located on the left side of the middle and the annular structure at the right end of the skeleton support cylinder section (1). Similarly, the second set of quartz lamp tubes (10) is installed between the annular structure located on the right side of the middle and the annular structure at the left end of the skeleton support cylinder section (1).

7. The water-cooled heater as described in claim 6, characterized in that, The two annular guide strips (5) located in the middle of the skeleton support cylinder section (1) are connected to the second inlet and outlet water pipes (12) through hollow external thread rods. The second inlet and outlet water pipes (12) are also hollow external thread rods. The two hollow external thread rods are connected through the internal thread through hole long nut (6) and electrically connected through the guide double hole bridging connecting piece (7).

8. The water-cooled heater as described in claim 7, characterized in that, The hollow external threaded rod is fitted with an insulating terminal (13) when it passes through the guide bar bracket (2), the upper tray (3), and the lower tray (4).

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