一种微波谐振腔密封观察窗及应用其的设备
By designing a microwave resonant cavity device with a sandwiched sealed threaded sleeve and a sealed observation window, the problems of light transmission, heat insulation and airtight measurement in high-temperature microwave instruments were solved, realizing in-situ detection and temperature measurement in high-temperature environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING XIANGHU SCI & TECH DEV
- Filing Date
- 2025-07-08
- Publication Date
- 2026-07-17
AI Technical Summary
In high-temperature microwave instruments, existing technologies cannot achieve light transmission, high temperature isolation, microwave leakage prevention, and infrared temperature sensor loading for reaction temperature measurement in a closed environment, thus failing to meet the requirements for in-situ detection.
Design a device with a microwave resonant cavity sealed observation window, including a sandwich-sealed threaded sleeve and a sealed observation window. Utilize a double-threaded light-transmitting port and a heat-insulating window, combined with an infrared temperature sensor and in-situ detection and analysis instrument, to achieve light transmission, heat insulation, and airtight measurement.
It enables visualized detection and temperature measurement of the internal reaction of the resonant cavity at a high temperature of 1600℃, meeting the requirements for in-situ detection in a closed environment and avoiding microwave leakage and atmosphere leakage.
Smart Images
Figure CN224520169U_ABST
Abstract
Claims
1. An apparatus with a sealed view port for a microwave resonant cavity, characterized by, It includes an excitation cavity (1), a resonant cavity (2), a cooling cavity (3), and a cutoff tube cover (4). The cooling cavity (3) is fitted outside the resonant cavity (2), and a columnar annular sealed space is formed between the cooling cavity (3) and the resonant cavity (2). The excitation cavity (1) is located on one side of the resonant cavity (2) and is used to install a microwave transmitting device. The cutoff tube cover (4) is located on the other side of the resonant cavity (2) and is opposite to the position of the excitation cavity (1). The cooling cavity (3) and the resonant cavity (2) are provided with corresponding through holes. At the corresponding through hole position between the cooling cavity (3) and the resonant cavity (2), a sandwich sealing threaded sleeve (9) is provided, and a sealing observation window (5) is connected to the sandwich sealing threaded sleeve (9).
2. An apparatus having a sealed view port for a microwave resonant cavity as defined in claim 1, wherein, The through hole of the resonant cavity (2), the through hole of the cooling cavity (3) and the interlayer sealing threaded sleeve (9) are in a concentric state. The interlayer sealing threaded sleeve (9) is a cylindrical barrel with double-end arc surfaces. One end of the arc surface is matched with the outer wall of the resonant cavity (2), and the other end of the arc surface is matched with the inner wall of the cooling cavity (3). Both ends of the arc surface are sealed by welding.
3. An apparatus having a sealed view port for a microwave resonant cavity as defined in claim 2, wherein, The interlayer sealing threaded sleeve (9) is threaded to a sealing observation window (5), and the sealing observation window may be one or more.
4. An apparatus having a sealed view port for a microwave resonant cavity as claimed in any one of claims 1 to 3, wherein, There are three through holes and sealed observation windows (5). The sealed observation window (5) includes a longitudinal observation window and a transverse observation window, wherein there is one longitudinal observation window and two transverse observation windows. The center lines of the two horizontal observation windows coincide, and they are at 90° relative to the vertical observation window.
5. An apparatus having a sealed view port for a microwave resonant cavity as defined in claim 4, wherein, An infrared temperature sensor (6) is installed on the outside of the longitudinal observation window to detect the temperature of the reactants inside the resonant cavity (2); The transmitter and receiver of an in-situ detection and analysis instrument (7) are installed on the outside of one of the horizontal observation windows, and an industrial camera (702) is installed on the outside of the other horizontal observation window. Alternatively, the transmitter of an in-situ detection and analysis instrument or a synchrotron X-ray diffractometer can be installed on the outside of one of the horizontal observation windows, and the receiver can be installed on the outside of the other horizontal observation window.
6. An apparatus having a sealed view port for a microwave resonant cavity as claimed in any one of claims 1 to 3, wherein, Two 3-pin connectors (10) are provided on the outside of the cooling chamber (3). The two 3-pin connectors (10) are respectively sealed and welded to the outer wall (301) of the cooling chamber, and are used for the inlet and outlet of the flowing coolant.
7. An apparatus having a sealed view port for a microwave resonant cavity as claimed in any one of claims 1 to 3, wherein, The top of the stop pipe cover (4) is provided with a stop pipe cover plug (8) with an air outlet. A sealing O-ring (803) is provided at the connection between the stop pipe cover plug (8) with an air outlet and the stop pipe cover (4). The top of the plug (802) of the stop pipe cover plug (8) with an air outlet is provided with an air outlet (801) connected by an external thread pagoda head.
8. A microwave resonant cavity sealed observation window, applied to a device with a microwave resonant cavity sealed observation window as described in any one of claims 1-7, characterized in that: The sealed observation window (5) is mainly a stepped double-threaded light-transmitting opening (506), and also includes: a large-headed external thread (502) located on the outside of the large end of the stepped structure, a light-transmitting opening nut (503) connected to the large-headed external thread (502) on the outside of the large end of the stepped structure, a heat-insulating window plate (504) fixed to the large end of the stepped structure by the light-transmitting opening nut (503), and a small-headed external thread (507) located on the outside of the small end of the stepped structure. The small-end external thread (507) is used to connect the interlayer sealing threaded sleeve (9).
9. A microwave resonant cavity sealed view port as claimed in claim 8, characterised in that: A large-head O-ring (505) is provided between the inner side of the heat-insulating window slab (504) and the double-threaded light-transmitting opening, and a small-head O-ring (508) is provided at the end of the small end of the stepped structure.
10. A microwave resonant cavity sealed view port as claimed in claim 8 or 9 wherein: An air inlet can be provided on the sealed observation window (5) at any position of the microwave resonant cavity. The air inlet is installed on the main body of the sealed observation window (5) and is a threaded pagoda connector (501). It works in conjunction with the plug (8) with the air outlet stop pipe cover to achieve a negative pressure environment inside the resonant cavity.