Sealing air cooling sleeve for condensation section of high-temperature heat pipe

Abstract

The utility model relates to the technical field of high-temperature heat pipe measurement, and discloses a sealing air cooling sleeve for a condensation section of a high-temperature heat pipe, which comprises an L-shaped air cooling sleeve body, three ends of the air cooling sleeve body are respectively and fixedly connected with a first connecting flange plate, and a second connecting flange plate is arranged at the other end of the air cooling sleeve body. A buffer sealing gasket piece is arranged on one side of the first connecting flange plate, a gap between the first connecting flange plate and the flange seal is filled through the high-temperature-resistant graphite metal sealing ring, meanwhile, the flange seal joint can be filled with high-temperature-resistant sealant to supplement the gap, and the high-temperature-resistant sealant and the high-temperature-resistant graphite metal sealing ring are combined to form a sealing layer. Meanwhile, a gap between the high-temperature-resistant graphite metal sealing ring and the flange is reduced by utilizing the buffer sealing gasket, and the stability of the high-temperature-resistant graphite metal sealing ring after installation is improved, so that the sealing effect of the air cooling sleeve is improved, high-temperature gas leakage is reduced, and inlet and outlet gas measurement of experimental measurement is more accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of high-temperature heat pipe measurement, in particular to a sealed air-cooling jacket for a condensation section of a high-temperature heat pipe. Background Art

[0002] A heat pipe is a device that uses the principle of phase change to efficiently transfer heat. High-temperature heat pipes, due to their high operating temperatures and excellent heat transfer performance, are a hot research topic in the field of heat pipes. They have broad application prospects in areas such as thermal protection for hypersonic vehicles, cooling of space nuclear reactors, and utilization of solar energy.

[0003] The steady-state method is a commonly used method to measure the heat transfer performance (equivalent thermal conductivity) of a heat pipe. When using the steady-state method to measure the heat transfer performance of a heat pipe, it is necessary to measure the length of the heat pipe in the heat transfer direction, the temperature difference at both ends in the heat transfer direction, and the heat transferred in the heat transfer direction. The first two parameters are relatively easy to measure and have a high measurement accuracy. For the measurement of heat transfer, there are usually two methods: one is to calculate the heat transfer by subtracting the heat leakage from the input heat, and the other is to calculate the heat transfer by measuring the mass flow rate and temperature change of the cooling medium.

[0004] Conducting high-temperature heat pipe heat transfer limit experiments requires rapid and large-scale adjustment of the cooling capacity of the cold end. The use of high-temperature compressed air can meet the requirements of the heat transfer limit experiment with rapid and large-scale adjustment of the cooling capacity. However, during long-term heat pipe test experiments, due to the high-temperature compressed air conditions, the air cooling jacket is prone to gas leakage, resulting in inaccurate inlet and outlet temperature measurements, and thus unable to accurately reflect the heat transfer capacity of the high-temperature heat pipe. Therefore, we need to propose a sealed air cooling jacket for the condensing section of the high-temperature heat pipe. Utility Model Content

[0005] The purpose of the present utility model is to provide a sealed air-cooling jacket for the condensing section of a high-temperature heat pipe, to improve the sealing performance of the connection end of the air-cooling jacket, to avoid air leakage at the end of the air-cooling jacket during the experiment, thereby affecting the accuracy of temperature measurement, and to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a sealed air-cooling jacket for a high-temperature heat pipe condensing section, comprising an air-cooling jacket body, the air-cooling jacket body being arranged in an L-shape, the three ends of the air-cooling jacket body being fixedly connected with a first connecting flange respectively, a buffer sealing gasket being arranged on one side of the first connecting flange, a high-temperature resistant graphite metal sealing ring being arranged inside the buffer sealing gasket, a flange sealing joint being detachably connected to one side of the first connecting flange, an inlet temperature measuring end being arranged on the outside of the air inlet end of the air-cooling jacket body, an outlet temperature measuring end being arranged on the outside of the air outlet end of the air-cooling jacket body, a high-temperature heat pipe body passing through the flange sealing joint being plugged into the right-angle end of the air-cooling jacket body, and the flange sealing joint being filled with high-temperature resistant sealant.

[0007] Preferably, the flange sealing joint includes a second connecting flange, one side of the second connecting flange is fixedly connected to a connector, one side of the connector is provided with a glue injection tube, and a high-temperature resistant sealant filling cavity is opened inside the connector.

[0008] Preferably, the buffer sealing gasket includes two groups of high-temperature resistant rubber gaskets, and the opposite sides of the two groups of high-temperature resistant rubber gaskets are provided with sealing ring grooves for embedding high-temperature resistant graphite metal sealing rings, and the inner diameter of the high-temperature resistant rubber gasket is larger than the inner diameter of the high-temperature resistant graphite metal sealing ring.

[0009] Preferably, multiple groups of first positioning blocks are fixedly connected to one side of the first connecting flange, and multiple groups of second positioning blocks are fixedly connected to the other side of the second connecting flange. Positioning holes for plugging the first positioning blocks and the second positioning blocks are provided on opposite sides of the two groups of high-temperature resistant rubber gaskets.

[0010] Preferably, a plurality of first through holes are provided on one side of the first connecting flange, and a second through hole corresponding to the plurality of first through holes is provided on one side of the second connecting flange.

[0011] Preferably, the outer diameter of the high-temperature resistant rubber gasket is the same as the outer diameter of the first connecting flange, and the inner diameter of the high-temperature resistant rubber gasket is larger than the outer diameter of the high-temperature heat pipe body.

[0012] Preferably, the air cooling jacket body is a stainless steel sleeve, one end of the air cooling jacket body close to the inlet temperature measuring end is the high temperature gas inlet, and one end of the air cooling jacket body close to the outlet temperature measuring end is the high temperature gas outlet.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The utility model mainly cooperates among the air-cooling sleeve body, the flange sealing joint, the high-temperature resistant graphite metal sealing ring and the buffer sealing gasket. The high-temperature resistant graphite metal sealing ring fills the gap between the first connecting flange and the flange seal. At the same time, the flange sealing joint can be filled with high-temperature resistant sealant to supplement the gap, and combined with the high-temperature resistant graphite metal sealing ring to form a sealing layer. At the same time, the buffer sealing gasket is used to reduce the gap between the high-temperature resistant graphite metal sealing ring and the flange, and the stability of the high-temperature resistant graphite metal sealing ring after installation is improved, thereby improving the sealing effect of the air-cooling sleeve, reducing high-temperature gas leakage, and making the inlet and outlet gas measurements of the experimental measurement more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the buffer sealing gasket of the present utility model;

[0017] Figure 3 This is a schematic structural diagram of the flange sealing joint of the present invention.

[0018] In the figure: 1. Air cooling jacket body; 2. Inlet temperature measuring end; 3. Outlet temperature measuring end; 4. First connecting flange; 41. First positioning block; 5. Flange sealing joint; 51. Second connecting flange; 52. Connector; 53. High-temperature resistant sealant filling cavity; 54. Glue injection tube; 55. Second positioning block; 6. High-temperature heat pipe body; 7. High-temperature resistant graphite metal sealing ring; 8. Buffer sealing gasket; 81. High-temperature resistant rubber gasket; 82. Sealing ring slot; 83. Positioning hole. DETAILED DESCRIPTION

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

[0020] See also Figure 1-3The utility model provides a technical solution: a sealed air-cooling jacket for the condensing section of a high-temperature heat pipe, comprising an air-cooling jacket body 1, the air-cooling jacket body 1 being arranged in an L shape, the three ends of the air-cooling jacket body 1 being fixedly connected with a first connecting flange 4 respectively, a buffer sealing gasket 8 being arranged on one side of the first connecting flange 4, a high-temperature resistant graphite metal sealing ring 7 being arranged inside the buffer sealing gasket 8, a flange sealing joint 5 being detachably connected to one side of the first connecting flange 4, an inlet temperature measuring end 2 being arranged on the outside of the air inlet end of the air-cooling jacket body 1, an outlet temperature measuring end 3 being arranged on the outside of the air outlet end of the air-cooling jacket body 1, a high-temperature heat pipe body 6 which passes through the flange sealing joint 5 being plugged into the right-angle end of the air-cooling jacket body 1, and the flange sealing joint 5 being filled with high-temperature resistant sealant.

[0021] The flange sealing joint 5 includes a second connecting flange 51, one side of the second connecting flange 51 is fixedly connected to a connecting head 52, a glue injection tube 54 is provided on one side of the connecting head 52, and a high-temperature resistant sealant filling cavity 53 is opened inside the connecting head 52. The high-temperature resistant filling glue is conveniently filled into the first connecting flange 4, the second connecting flange 51 and the high-temperature resistant graphite metal sealing ring 7 through the glue injection tube 54, thereby improving the sealing and preventing high-temperature gas leakage.

[0022] The buffer sealing gasket 8 includes two groups of high-temperature resistant rubber gaskets 81. The opposite sides of the two groups of high-temperature resistant rubber gaskets 81 are provided with sealing ring grooves 82 for the high-temperature resistant graphite metal sealing ring 7 to be embedded. The inner diameter of the high-temperature resistant rubber gasket 81 is larger than the inner diameter of the high-temperature resistant graphite metal sealing ring 7. The sealing ring grooves 82 are used to facilitate the positioning of the high-temperature resistant graphite metal sealing ring 7. At the same time, the glue injection tube 54 is used to facilitate the filling of high-temperature resistant sealant into the gaps to improve the sealing performance.

[0023] Multiple groups of first positioning blocks 41 are fixedly connected to one side of the first connecting flange 4, and multiple groups of second positioning blocks 55 are fixedly connected to the other side of the second connecting flange 51. Positioning holes 83 for the first positioning blocks 41 and the second positioning blocks 55 to be inserted are provided on the opposite side of the two groups of high-temperature resistant rubber gaskets 81. The first positioning blocks 41 and the second positioning blocks 55 are used to conveniently and quickly position the high-temperature resistant rubber gaskets 81, thereby improving the installation stability of the high-temperature resistant graphite metal sealing ring 7.

[0024] Multiple groups of first through holes are opened on one side of the first connecting flange 4, and second through holes corresponding to the multiple groups of first through holes are opened on one side of the second connecting flange 51. The first through holes and the second through holes are conveniently used to fix the first connecting flange 4 and the second connecting flange 51 with external connecting bolts, thereby improving the stability of the connection.

[0025] The outer diameter of the high-temperature resistant rubber gasket 81 is the same as the outer diameter of the first connecting flange 4, and the inner diameter of the high-temperature resistant rubber gasket 81 is larger than the outer diameter of the high-temperature heat pipe body 6. The high-temperature resistant rubber gasket 81 buffers the pressure during the installation of the high-temperature resistant graphite metal sealing ring 7, thereby improving the service life of the high-temperature resistant graphite metal sealing ring 7.

[0026] The air cooling jacket body 1 is a stainless steel sleeve. The end of the air cooling jacket body 1 close to the inlet temperature measuring end 2 is the high-temperature gas inlet, and the end of the air cooling jacket body 1 close to the outlet temperature measuring end 3 is the high-temperature gas outlet. The material used for the air cooling jacket body 1 is 316 stainless steel, which can withstand higher temperatures and has a longer service life.

[0027] When in use, high-temperature gas is introduced into the flange sealing joint 5 of the air-cooling jacket body 1 near the inlet temperature measuring end 2, and the high-temperature heat pipe body 6 is inserted into the end of the air-cooling jacket body 1 opposite to the air inlet end to facilitate temperature measurement experiments. At the same time, the high-temperature gas is discharged through the end of the air-cooling jacket body 1 near the outlet temperature measuring end 3. The inlet temperature measuring end 2 is connected to an external temperature measuring device, which is convenient for monitoring the temperature of the high-temperature gas entering the air-cooling jacket body 1. At the same time, the high-temperature gas is discharged after heat exchange with the high-temperature heat pipe body 6, and the temperature is monitored by the external temperature measuring device connected to the outlet temperature measuring end 3. The cooling effect of the high-temperature heat pipe body 6 is detected by the temperature difference. At the same time, the ends of the air-cooling jacket body 1 are sealed by high-temperature resistant graphite metal sealing rings 7, and high-temperature resistant sealant is filled between the high-temperature resistant graphite metal sealing ring 7 and the first connecting flange 4 and the second connecting flange 51, thereby filling the gap between the first connecting flange 4 and the second connecting flange 51, further improving the sealing effect, thereby preventing high-temperature gas leakage and improving the accuracy of the experimental results.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealed air cooling jacket for a high-temperature heat pipe condensing section, comprising an air cooling jacket body (1), characterized in that: The air cooling sleeve body (1) is arranged in an L-shape, and the three ends of the air cooling sleeve body (1) are respectively fixedly connected with a first connecting flange (4), a buffer sealing gasket (8) is arranged on one side of the first connecting flange (4), and a high-temperature resistant graphite metal sealing ring (7) is arranged inside the buffer sealing gasket (8), and a flange sealing joint (5) is detachably connected to one side of the first connecting flange (4), an inlet temperature measuring end (2) is arranged on the outside of the air inlet end of the air cooling sleeve body (1), and an outlet temperature measuring end (3) is arranged on the outside of the air outlet end of the air cooling sleeve body (1), and a high-temperature heat pipe body (6) that passes through the flange sealing joint (5) is inserted at the right-angle end of the air cooling sleeve body (1), and the flange sealing joint (5) is filled with high-temperature resistant sealant.

2. The sealed air cooling jacket for the condensing section of a high-temperature heat pipe according to claim 1, characterized in that: The flange sealing joint (5) comprises a second connecting flange (51), one side of the second connecting flange (51) is fixedly connected to a connecting head (52), a glue injection tube (54) is provided on one side of the connecting head (52), and a high-temperature resistant sealant filling cavity (53) is provided inside the connecting head (52).

3. The sealed air cooling jacket for the condensing section of a high-temperature heat pipe according to claim 2, characterized in that: The buffer sealing gasket (8) comprises two groups of high-temperature resistant rubber gaskets (81), and opposite sides of the two groups of high-temperature resistant rubber gaskets (81) are provided with sealing ring grooves (82) for embedding the high-temperature resistant graphite metal sealing ring (7), and the inner diameter of the high-temperature resistant rubber gasket (81) is larger than the inner diameter of the high-temperature resistant graphite metal sealing ring (7).

4. The sealed air cooling jacket for the condensing section of a high-temperature heat pipe according to claim 3, characterized in that: One side of the first connecting flange (4) is fixedly connected to a plurality of first positioning blocks (41), and the other side of the second connecting flange (51) is fixedly connected to a plurality of second positioning blocks (55). Positioning holes (83) for plugging the first positioning blocks (41) and the second positioning blocks (55) are provided on opposite sides of the two groups of high-temperature resistant rubber washers (81).

5. The sealed air cooling jacket for the condensing section of a high-temperature heat pipe according to claim 4, characterized in that: One side of the first connecting flange (4) is provided with a plurality of first through holes, and one side of the second connecting flange (51) is provided with second through holes corresponding to the plurality of first through holes.

6. The sealed air cooling jacket for the condensing section of a high-temperature heat pipe according to claim 5, characterized in that: The outer diameter of the high-temperature resistant rubber gasket (81) is the same as the outer diameter of the first connecting flange (4), and the inner diameter of the high-temperature resistant rubber gasket (81) is larger than the outer diameter of the high-temperature heat pipe body (6).

7. The sealed air cooling jacket for the condensing section of a high-temperature heat pipe according to claim 6, characterized in that: The air cooling sleeve body (1) is a stainless steel sleeve, one end of the air cooling sleeve body (1) close to the inlet temperature measuring end (2) is a high-temperature gas inlet, and one end of the air cooling sleeve body (1) close to the outlet temperature measuring end (3) is a high-temperature gas outlet.

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