A detection antenna device for high-temperature and high-pressure environments

Abstract

The present invention provides a detection antenna device for high-temperature and high-pressure environments, belonging to the technical field of environmental monitoring. It is connected to an external water supply device and is used to detect the state of materials inside a closed device. It is characterized in that it includes: a housing; a beam scanning antenna, in a plate shape, arranged inside the housing; an antenna cover, arranged on the side of the beam scanning antenna close to the materials for protecting the beam scanning antenna; and a water cooling mechanism, which has a cold plate, a water inlet pipe and a water return pipe. Among them, a part of the water inlet pipe and the water return pipe is arranged inside the housing, and the part arranged outside the housing is connected to the water supply device. The cold plate is arranged on the side of the beam scanning antenna far from the materials, and it has a water flow channel inside that is connected to the water inlet pipe and the water return pipe for cooling the beam scanning antenna. The housing is filled with heat-insulating filler.

Description

Technical Field

[0001] The present invention belongs to the technical field of environmental monitoring, and particularly relates to a detection antenna device that can be used in high-temperature and high-pressure environments. Background Art

[0002] With the development of technology, in harsh enclosed environments such as smelting furnaces, detection antennas are required to perform real-time detection and monitoring of the material state in the enclosed environment. Such detection antennas need to have a wide detection angle range and high-precision signal acquisition capabilities, and the antennas need to accurately collect signals in harsh environments of high temperature, high pressure, and high dust. Level measurement radars can usually only measure the change in the material surface in a fixed direction in front of the radar, while surface measurement radars can collect data at multiple points within a certain area in front of the radar to form a material surface.

[0003] As antennas for surface measurement, the main technical solutions adopted are: mechanical scanning antennas and electronic scanning antennas. The mechanical scanning antenna is realized by adding a servo turntable device behind the antenna with a fixed beam, and the change in the pointing direction of the antenna beam is achieved through the movement of the turntable to obtain surface information in different azimuths; the electronic scanning antenna has two methods: phase scanning and frequency scanning. Generally, a phased array antenna realizes beam scanning by directly changing the phase of each unit antenna in the antenna array, and the electronic scanning antenna with the frequency scanning method realizes beam scanning by indirectly changing the phase of the unit antenna through the change of frequency.

[0004] However, for surface scanning, the antenna plus servo turntable system has temperature limitations. The operating temperature of the servo turntable system is within 50°C, and the required environmental control technology is complex, and the cost of implementing the environmental control device is very high. And the beam scanning antenna also cannot work in high-temperature environments due to its intolerance to high temperatures. Summary of the Invention

[0005] To solve the above problems, the present invention provides a detection antenna device for high-temperature and high-pressure environments, and the present invention adopts the following technical solutions:

[0006] The present invention provides a detection antenna device for high-temperature and high-pressure environments, which is connected to an external water supply device and is used to detect the state of materials inside a closed device. It is characterized in that it includes: a housing; a beam scanning antenna, in a plate shape, arranged inside the housing; an antenna cover, arranged on the side of the beam scanning antenna close to the material, used to protect the beam scanning antenna, and a water cooling mechanism, having a cold plate, a water inlet pipe, and a water return pipe. Among them, a part of the water inlet pipe and the water return pipe is arranged inside the housing, and the part arranged outside the housing is connected to the water supply device. The cold plate is arranged on the side of the beam scanning antenna away from the material, and it has a water flow channel connected to the water inlet pipe and the water return pipe inside, used to cool the beam scanning antenna, and the housing is filled with heat insulation filler.

[0007] The detection antenna device for high-temperature and high-pressure environments provided by the present invention may also have the following characteristics: The housing has a cover and a bottom plate. The cover covers the beam scanning antenna and has an opening facing the material. The bottom plate is installed at the opening and has a through hole matching the radome.

[0008] The detection antenna device for high-temperature and high-pressure environments provided by the present invention may also have the following characteristics: It further includes an antenna cover mounting mechanism provided on the side of the antenna cover close to the material, which has a pressing frame and a supporting member. The pressing frame has a convex edge extending towards the center of the pressing frame for supporting the antenna cover. The supporting member is arranged on the bottom plate on the side of the pressing frame close to the material for supporting the pressing frame.

[0009] The detection antenna device for high-temperature and high-pressure environments provided by the present invention may also have the following characteristics: The periphery of the cold plate is provided with a support plate perpendicular to the beam scanning antenna and extending towards the material direction. The end face of the support plate cooperates with the side face of the convex edge away from the material to tightly press the antenna cover.

[0010] The detection antenna device for high-temperature and high-pressure environments provided by the present invention may also have the following characteristics: It further includes a purging mechanism, which has an air inlet pipe for conveying compressed air. The supporting member is provided with air outlets, which are evenly distributed on the periphery of the side of the antenna cover close to the material and are connected to the air inlet pipe to purge the surface of the antenna cover with compressed air.

[0011] The detection antenna device for high-temperature and high-pressure environments provided by the present invention may also have the following characteristics: It further includes a protective pipe sleeve vertically arranged on the side of the housing away from the material and connected to the housing. The water inlet pipe, the water return pipe and the air inlet pipe pass through the protective pipe sleeve and are connected to the water supply device and the external air supply device.

[0012] The detection antenna device for high-temperature and high-pressure environments provided by the present invention may also have the following characteristics: It further includes a reinforcing plate, one end of which is fixedly connected to the outer surface of the housing and the other end is fixedly connected to the outer surface of the protective pipe sleeve.

[0013] The detection antenna device for high-temperature and high-pressure environments provided by the present invention may also have the following characteristics: The reinforcing plate forms an angle of 45° with the surfaces of both the protective pipe sleeve and the housing.

[0014] The detection antenna device for high-temperature and high-pressure environments provided by the present invention may also have the following characteristics: The material of the heat-insulating filler is aerogel.

[0015] Functions and effects of the invention

[0016] The detection antenna device for high-temperature and high-pressure environments provided by the invention is arranged inside a high-temperature closed device and is used to detect the material state inside the closed device. It includes a housing, a beam scanning antenna, an antenna cover, a water-cooling mechanism, and a heat-insulating filler. Among them, the beam scanning antenna can detect multiple point data within a certain area in the high-temperature closed device to form a material surface. The housing in this embodiment serves to carry other components; the cold plate in the water-cooling mechanism is attached to the plate-shaped beam scanning antenna, playing a role in cooling; the heat-insulating filler cooperates with the water-cooling mechanism to reduce the temperature around the antenna, that is, the ambient temperature (several hundred degrees Celsius) inside the high-temperature closed device, to below the operating temperature (120 °C) of the antenna, i.e., the feeding part, ensuring the normal operation of the antenna. And the detection antenna device in this embodiment is also provided with an antenna cover, which can reduce the dust around the antenna and further play a heat-insulating role. The detection antenna device in the embodiment of the present invention can not only scan the material surface in the device, but also has a relatively simple environmental control mechanism and low cost, and is easier to implement compared with the device that requires a servo system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the detection antenna device in the embodiment of the present invention;

[0018] Figure 2 is an embodiment of the present invention Figure 1 partial enlarged schematic diagram of A therein;

[0019] Figure 3 is a partial enlarged three-dimensional view of the detection antenna device in the embodiment of the present invention;

[0020] Figure 4 is a schematic structural diagram of the beam scanning antenna in the embodiment of the present invention;

[0021] Figure 5 is a schematic structural diagram of the antenna cover in the embodiment of the present invention;

[0022] Figure 6 is a three-dimensional schematic diagram of the detection antenna device in the embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following describes the specific embodiments of the present invention with reference to the accompanying drawings and embodiments.

[0024] In the following embodiments, the normal operating temperature range of the beam scanning antenna is: 90 °C to 120 °C

[0025] The temperature inside the smelting furnace where the material is located is approximately: 300 °C to 500 °C

[0026] In the following embodiments, the lower direction in the direction description refers to the direction of the material relative to the detection antenna device.

[0027] <Embodiment>

[0028] This embodiment provides a detection antenna device for a high-temperature and high-pressure environment, which is arranged inside a high-temperature closed device, connected to an external water supply device and a gas supply device, and is used to detect the material state inside the closed device. In this embodiment, the high-temperature closed device is a smelting furnace.

[0029] Figure 1 It is a schematic structural diagram of the detection antenna device according to the embodiment of the present invention.

[0030] As Figure 1 shown, the detection antenna device 100 according to the embodiment of the present invention includes a pipe sleeve 1, a housing 2, a beam scanning antenna 4, an antenna cover mounting mechanism 5, an antenna cover 6, a purging mechanism 7, a water cooling mechanism 8, and a heat insulation filler 9.

[0031] As Figure 1 shown, the pipe sleeve 1 is cylindrical, one end is fixedly connected to the smelting furnace through a flange, the other end is fixedly connected to the housing 2 through a flange, and the pipe sleeve 1 and the housing 2 are in communication with each other. Six reinforcing plates 11 are respectively provided at both ends of the pipe sleeve 1 for strengthening the connection.

[0032] The housing 2 is cuboid-shaped and has a cover shell 21, a bottom plate 22, and a bracket 23. The cover shell 21 is connected to the pipe sleeve 1 and is provided with an opening facing the material, and the bottom plate 22 is fixedly installed at the opening.

[0033] Figure 2 It is of the embodiment of the present invention Figure 1 partial enlarged schematic diagram of A in Figure 3 It is a partial enlarged three-dimensional diagram of the detection antenna device according to the embodiment of the present invention.

[0034] Among them, as Figure 2 shown, a bracket 23 is provided in the housing 2, a through hole matching the antenna cover 6 is provided on the bottom plate 22, and a bottom plate convex part 221 perpendicular to the bottom plate 22 and extending upward, that is, in the direction of the cover shell 11, is provided on the through hole.

[0035] The detection antenna device 100 of this embodiment is also provided with a reinforcing plate 3. One end of the reinforcing plate 3 is fixedly connected to the surface of the pipe sleeve 1, and the other end is fixedly connected to the surface of the housing 2, for strengthening the connection between the pipe sleeve 1 and the housing 2. Both ends of the reinforcing plate 3 are fixedly connected to the surfaces of the pipe sleeve 1 and the cover shell 21 respectively and both ends are at 45° to the surface.

[0036] Figure 4 It is a schematic structural diagram of the beam scanning antenna according to the embodiment of the present invention.

[0037] As Figure 4As shown, the beam scanning antenna 4 is plate-shaped, and a microwave patch array antenna, a metal ground plane, and a waveguide layer are arranged in sequence from top to bottom.

[0038] Among them, the microwave patch array antenna is printed on a microwave dielectric board. The metal ground plane in the middle layer is shared by the microwave patch array antenna and the waveguide layer. The waveguide layer in the lower layer adopts a waveguide narrow-side serpentine structure, and the microwave patch array antenna is coupled and fed through the gap of the metal ground plane. Four mounting holes are provided at the four corners of the beam scanning antenna 4 for connection.

[0039] As Figures 1 to 3 shown, the radome mounting mechanism 5 has a pressing frame 51 and a supporting member 52.

[0040] The supporting member 52 is arranged on the outer peripheral side of the bottom plate convex portion 221 and is in close contact with the bottom plate convex portion 221, and extends perpendicular to the bottom plate 22 in a direction away from the bottom plate 22, that is, it is arranged above the bottom plate 22. The length of the supporting member 52 in the direction perpendicular to the bottom plate 22 is greater than the length of the bottom plate convex portion 221 in this direction. The pressing frame 51 is arranged on the supporting member 52 and has a pressing frame convex edge extending towards the center of the pressing frame 51. The surface of the pressing frame convex edge away from the bottom plate 22 is a supporting surface for supporting the radome 6.

[0041] Figure 5 It is a schematic structural diagram of the radome of the embodiment of the present invention.

[0042] As Figure 2 and Figure 5 shown, the radome 6 is plate-shaped, and the four corners are rounded, which matches the shape and size of the beam scanning antenna 4 and is arranged on the supporting surface of the pressing frame convex edge. The material used for the radome 6 is a heat-insulating material, which is used to protect the beam scanning antenna 4 and prevent dust and external heat from affecting the normal operation of the beam scanning antenna 4.

[0043] As Figures 1 to 3 shown, the purging mechanism 7 has an air outlet 71 and an air inlet pipe 72.

[0044] The air outlets 71 are evenly distributed on the side of the supporting member 52 facing the radome 6 near the bottom plate 22, that is, the peripheral side below the radome 6. The air inlet pipe 72 is externally connected to a gas supply device and passes through the pipe sleeve 1 and extends into the housing 2 and is connected to the air outlets 71. The air inlet pipe 72 conveys compressed air to the air outlets 71, and the air outlets 71 blow out gas to purge the surface of the radome 6, blowing away the dust on the surface of the radome 6 and cooling the radome 6. In this embodiment, the gas supply device is a compressed air inflator pump.

[0045] Figure 6 It is a three-dimensional schematic diagram of the detection antenna device of the embodiment of the present invention.

[0046] As Figures 1 to 3 andFigure 6 As shown, a water cooling mechanism 8 is disposed inside the housing 2 and includes a cold plate 81, a water inlet pipe 82, and a water return pipe 83 ( Figure 1 not shown in the figure) for cooling the beam scanning antenna 4.

[0047] In this embodiment, the cold plate 81 has a connecting plate 811, a support plate 812 extending downward from the periphery of the connecting plate 811, and a top plate 813 fixedly connected above the connecting plate 811. The end face of the support plate 812 cooperates with the supporting surface of the radome mounting mechanism 5 to press the radome 6. The beam scanning antenna 4 is fixedly connected to one side of the connecting plate 811 facing the bottom plate 22, that is, the side of the cold plate body facing downward, and a heat conductive silicone grease with a high heat conductivity coefficient is applied to the side of the connecting plate 811 for connection.

[0048] The water inlet pipe 82 and the water return pipe 83 are externally connected to a water supply device, such as Figure 1 and Figure 6 as shown, pass through the pipe sleeve 1 and extend into the housing 2, and are connected to a water flow channel provided inside the cold plate 81 for cooling water to flow through. An inlet and an outlet are provided on the side of the cold plate 81. The water inlet pipe 82 is connected to the water flow channel through the inlet, and the water return pipe 83 is connected to the water flow channel through the outlet. Cooling water can flow into the water flow channel through the water inlet pipe 82 and then flow out from the water return pipe 83 after passing through the water flow channel. In this embodiment, the temperature inside the detection antenna device 100 can be controlled by adjusting the flow rate of the cooling water.

[0049] As Figure 1 shown, the housing 2 is filled with a heat insulating filler 9. That is to say, the gaps between the housing 2 and the cold plate 81, the water inlet pipe 82, the water return pipe 83, and the air inlet pipe 72 and the housing 2, that is, the remaining space of the cavity of the housing 2, are filled with the heat insulating filler 9.

[0050] The material of the heat insulating filler 9 in this embodiment is aerogel, which is used for heat insulation and can keep the temperature inside the detection antenna device 100 within the temperature range required for the normal operation of the beam scanning antenna 4.

[0051] In this embodiment, as Figure 6 shown, the detection antenna device 100 further includes a cable pipe 10. One end of the cable pipe 10 is connected to an external power supply device, and the other end passes through the pipe sleeve 1 and is connected to the internal components of the housing 2.

[0052] Functions and Effects of the Embodiment

[0053] The detection antenna device for high-temperature and high-pressure environments provided by the embodiments of the present invention is arranged inside a high-temperature closed device and is used to detect the material state inside the closed device. It includes a housing, a beam scanning antenna, an antenna cover, a water cooling mechanism, and a heat insulation filler. Among them, the beam scanning antenna can detect multiple point data within a certain area in the high-temperature closed device to form a material surface. The housing in this embodiment serves to carry other components; the cold plate in the water cooling mechanism is attached to the plate-shaped beam scanning antenna to play a role in cooling; the heat insulation filler cooperates with the water cooling mechanism to reduce the temperature around the antenna, that is, the ambient temperature (several hundred degrees Celsius) inside the high-temperature closed device, to below the operating temperature (120 °C) of the antenna, i.e., the feeding part, ensuring the normal operation of the antenna. And the detection antenna device in this embodiment is also provided with an antenna cover, which can reduce the dust around the antenna and further play a role in heat insulation. The detection antenna device of the embodiments of the present invention can not only scan the material surface in the device, but also has a relatively simple environmental control mechanism and low cost, and is easier to implement compared to devices that require a servo system.

[0054] Furthermore, the detection antenna device provided in this embodiment is also provided with a purging mechanism. The purging mechanism is arranged on the circumferential side of the antenna cover away from the antenna, and is used to purge the surface of the antenna cover. It can not only prevent the accumulated dust on the outer surface of the antenna cover from affecting wave transmission, but also further reduce the temperature to ensure the operating environment temperature of the beam scanning antenna.

[0055] Furthermore, the detection antenna device provided in this embodiment is also provided with a protective pipe sleeve, which is used to connect the high-temperature closed device and the housing, and can also protect and introduce the water inlet pipe, water return pipe, and air inlet pipe for the water cooling mechanism and the purging mechanism communicating with the outside into the housing for the transmission of cooling water and purging gas.

[0056] Furthermore, a reinforcing plate is also arranged between the housing and the protective pipe sleeve in this embodiment, which is used to strengthen the connection between the housing and the protective pipe sleeve.

[0057] Furthermore, the material of the heat insulation filler in this embodiment is aerogel. Aerogel is a heat insulation material mostly used in the aerospace field, with a low thermal conductivity and good heat insulation performance, which can keep the temperature inside the housing at the applicable temperature of the antenna.

[0058] Furthermore, an antenna cover installation mechanism is also provided in this embodiment, which is used to fix the antenna cover. The antenna cover installation mechanism has a pressing frame and a supporting member. The pressing frame and the antenna cover are arranged on the supporting member. The height of the supporting member is greater than the bottom convex part of the bottom plate through hole, and the air outlet of the purging mechanism is arranged on the part of the supporting part higher than the bottom convex part, so that the purging gas arranged below the antenna cover can be directly discharged.

[0059] The above embodiments are only used to illustrate the specific implementation manners of the present invention, and the present invention is not limited to the description scope of the above embodiments.

[0060] In this embodiment, the cold plate has a top plate, a connecting plate, and a supporting plate. In other embodiments, it may also be plate-shaped. A supporting platform is provided between the cold plate and the radome to isolate the antenna from the external space.

[0061] In this embodiment, the detection antenna device has a radome mounting mechanism for mounting the radome, which has a pressing frame and a supporting member. In other embodiments, the radome mounting mechanism may not have a pressing frame or may adopt other structures. If the pressing frame is not provided, the size of the radome should be correspondingly increased and it is directly arranged between the cold plate and the supporting member.

[0062] In this embodiment, the material of the heat-insulating filler is aerogel. In other embodiments, as long as it can reduce the high temperature in the high-temperature sealing device to the applicable temperature of the antenna, other high-molecular heat-insulating materials can also be selected.

Claims

1. A detection antenna device for high temperature and high pressure environment, arranged inside a high temperature closed device, connected to an external water supply device, for detecting the state of the material inside the closed device, It is characterized in that include: case; A beam scanning antenna, in a plate shape, is disposed inside the housing; a radome, which is in the shape of a plate and made of a heat-insulating material, and is disposed on a side of the beam scanning antenna close to the material to protect the beam scanning antenna; and The water cooling mechanism is arranged inside the shell and comprises a cold plate, a water inlet pipe and a water return pipe. The beam scanning antenna comprises a microwave patch array antenna, a metal ground plate and a waveguide layer arranged in sequence from top to bottom, and the waveguide layer couples and feeds the microwave patch array antenna through the gap of the metal ground plate. A portion of the water inlet pipe and the water return pipe is arranged inside the shell, and a portion arranged outside the shell is connected to the water supply device. The cold plate is arranged on the side of the beam scanning antenna away from the material and is in close contact with the beam scanning antenna. The cold plate has a water flow channel connected to the water inlet pipe and the water return pipe, and is used to cool the beam scanning antenna. The gaps between the shell and the cold plate, the water inlet pipe and the water return pipe are filled with a heat-insulating filler, which is aerogel.

2. The detection antenna device for high temperature and high pressure environment according to claim 1, characterized in that: in, The housing comprises a cover shell and a bottom plate. The cover shell covers the beam scanning antenna and has an opening facing the material. The bottom plate is installed at the opening and has a through hole matching the antenna cover.

3. The detection antenna device for high temperature and high pressure environment according to claim 2, It is characterized in that Also includes: The radome mounting mechanism is arranged on a side of the radome close to the material and has a pressing frame and a supporting member. The pressing frame has a convex edge extending toward the center of the pressing frame for supporting the radome. The supporting member is arranged on the bottom plate, located on a side of the pressing frame close to the material, and is used for supporting the pressing frame.

4. The detection antenna device for high temperature and high pressure environment according to claim 3, characterized in that: in, The periphery of the cold plate is provided with a support plate which is perpendicular to the beam scanning antenna and extends in the direction of the material. The end surface of the support plate cooperates with the side of the convex edge away from the material to press the antenna cover tightly. The cold plate also has a connecting plate and a top plate fixed above the connecting plate. The beam scanning antenna is fixed on a surface of the connecting plate facing the bottom plate, and a surface of the connecting plate used for connection is coated with thermal conductive silicone grease with high thermal conductivity.

5. The detection antenna device for high temperature and high pressure environment according to claim 3, It is characterized in that Also includes: A purge mechanism having an air inlet pipe for delivering compressed air, The supporting member is provided with air outlets which are evenly distributed around a side of the antenna cover close to the material and are connected to the air inlet pipe so as to use the compressed air to blow the surface of the antenna cover.

6. The detection antenna device for high-temperature and high-pressure environment according to claim 5, characterized in that, further comprising: a protective pipe sleeve, vertically arranged on the side of the housing away from the material and communicating with the housing, the water inlet pipe, the water return pipe and the air inlet pipe pass through the protective pipe sleeve and communicate with the water supply device and the external air supply device.

7. The detection antenna device for high-temperature and high-pressure environment according to claim 6, characterized in that, further comprising: a reinforcing plate, one end fixedly connected to the outer surface of the housing and the other end fixedly connected to the outer surface of the protective pipe sleeve.

8. The detection antenna device for high-temperature and high-pressure environment according to claim 7, characterized in that: wherein, the reinforcing plate forms an angle of 45° with the surfaces of both the protective pipe sleeve and the housing.

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