Engine using floatable sealing pressure and temperature probe

Abstract

The invention discloses an engine using a floatable sealing pressure and temperature probe, and relates to the technical field of pressure and temperature probes. In order to solve the problem that an existing pressure and temperature probe is dislocated in a high-temperature working environment, the following technical scheme is provided: the pressure and temperature probe comprises an outer box, an inner box and a pressure and temperature probe, and the top of the inner box is provided with an inner box mounting seat; the pressure and temperature probe comprises a floating ring, a mounting screw and a pressure and temperature probe, a sealing ring mounting groove is formed in a spherical structure of the mounting screw, an elastic metal sealing ring in sealing fit with an inner cylindrical surface of the floating ring is mounted in the sealing ring mounting groove, and the floating ring, the elastic metal sealing ring and the mounting screw form a floating sealing structure. The floating ring is mounted in the mounting hole of the outer culvert casing; and the pressure and temperature probe is arranged in the mounting through hole of the inner culvert casing mounting seat. The operation efficiency and reliability of the engine are improved, and powerful support is provided for monitoring and maintenance of the engine.

Description

Technical Field

[0001] The invention relates to the technical field of pressure and temperature probes, and in particular to an engine using a floating sealed pressure and temperature probe. Background Art

[0002] The compressor of a turbofan engine is a double-duct compressor consisting of two ducts, the inner duct and the outer duct. The outer duct casing of the whole ring and the inner duct of the whole ring form the outer duct channel, and the inner duct of the whole ring and the inner duct of the whole ring form the inner duct channel. The pressure and temperature probe is usually fixed on the inner duct in the form of an embedded probe (such as Figure 1 As shown), the pressure and temperature are led out of the engine outer casing through a pipeline. With this structural form, if the pressure and temperature probe is damaged during use or testing, it is difficult to replace the pressure and temperature probe because the engine outer casing and the outer casing inner casing are not easy to disassemble.

[0003] At the same time, in the actual operation of the turbofan engine, the air flow temperature of the inner flow passage is much higher than that of the outer flow passage, which causes the inner and outer casings to shift due to the difference in thermal deformation. If an external pressure and temperature probe without a floating structure (such as Figure 2 As shown in the figure, in a high-temperature working environment, the inner and outer casings may be misaligned due to the difference in thermal deformation, which may cause the pressure and temperature probe to be easily deformed or damaged during use, thus reducing the product reliability. Summary of the invention

[0004] The object of the present invention is to provide an engine using a floating sealed pressure and temperature probe to solve the problem that the existing external plug-in pressure and temperature probe has a misalignment problem due to the difference in thermal deformation between the inner and outer casings in a high temperature working environment.

[0005] The technical solution of the present invention to solve the above technical problems is as follows: An engine using a floating sealed pressure and temperature probe comprises: an outer casing, an inner casing and a pressure and temperature probe, wherein an inner casing mounting seat is provided on the top of the inner casing; The pressure and temperature probe includes a floating ring arranged at the top, a mounting screw sleeved inside the floating ring, and a pressure and temperature probe connected to the bottom of the mounting screw. A sealing ring mounting groove is opened on the spherical structure of the mounting screw. An elastic metal sealing ring that seals with the inner cylindrical surface of the floating ring is installed in the sealing ring mounting groove. The floating ring, the elastic metal sealing ring and the mounting screw form a floating sealing structure. The floating ring is installed in the mounting hole of the outer casing, and the pressure and temperature probe is arranged in the mounting through hole of the inner casing mounting seat. Preferably, a pressure plate with clearance fit is provided on the top of the floating ring. Preferably, an internal pipeline is provided inside the pressure and temperature probe, an output connector is provided on the top of the pressure and temperature probe, the internal pipeline of the probe is connected to the output connector, and the pressure sensed by the pressure and temperature probe is led to the outside of the engine through the internal pipeline of the probe and the output connector respectively. Preferably, the mounting screw is threadedly connected to the inner casing mounting seat. Preferably, the pressure and temperature probe is provided with a spherical structure, the inner casing mounting seat is provided with a conical structure, and the spherical structure on the pressure and temperature probe is sealingly connected with the conical structure on the inner casing mounting seat.

[0006] The present invention has the following beneficial effects: Improve measurement accuracy: Through the cooperation of the floating ring, the elastic metal sealing ring and the mounting screw, a floating sealing structure is formed. This structure can adapt to the tiny displacement or vibration that may occur inside the engine, ensuring that the pressure and temperature probe maintains a stable position during the measurement process, thereby improving the measurement accuracy.

[0007] The spherical surface and conical surface match: The spherical surface structure on the pressure and temperature probe matches the conical surface structure on the inner casing mounting seat, which can adapt to the slight deformation that may occur inside the engine. This design allows the pressure and temperature probe to fit tightly on the inner casing mounting seat, improving the accuracy of the measurement.

[0008] Enhanced sealing performance: The elastic metal sealing ring is compressed and fits tightly on the inner cylindrical surface of the floating ring, forming a reliable sealing barrier. It can effectively prevent medium leakage and ensure the normal operation of the engine. The floating ring can float radially to a certain extent, which improves the sealing performance and can adapt to the slight deformation or vibration that may occur inside the engine, thereby enhancing the reliability of the seal. This design not only improves the accuracy of the measurement, but also prevents sealing failure or measurement errors caused by vibration or displacement.

[0009] Easy to install and maintain: The pressure and temperature probe is installed by threaded connection, which can be completed without complicated tools or equipment. At the same time, the threaded connection also has good self-locking performance, which can prevent the pressure and temperature probe from loosening or falling off during engine operation to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 and Figure 2 It is a schematic diagram of the background technology structure; Figure 3 This is a schematic diagram of the overall structure of an engine using a floatable sealed pressure and temperature probe according to the present invention; Figure 4 This is a schematic diagram of the structure of a pressure and temperature probe of an engine using a floating sealed pressure and temperature probe of the present invention; Figure 5 A cross-sectional view of the structure of a pressure and temperature probe of an engine using a floating sealed pressure and temperature probe of the present invention; Figures 3 to 5 The reference numerals shown in the figure represent respectively: 1. outer casing; 2. pressure and temperature probe; 3. inner casing mounting base; 4. inner casing; 5. output connector; 6. floating ring; 7. mounting screw; 8. pressure and temperature probe; 9. internal pipeline of probe; 10. elastic metal sealing ring; 11. pressure plate. DETAILED DESCRIPTION

[0011] The technical solution of the present invention is described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments 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 those skilled in the art without creative work are within the scope of protection of the present invention.

[0012] This embodiment provides an engine using a floating sealed pressure and temperature probe, whose structural design and working principle can ensure that during the operation of the engine, the pressure and temperature probe can stably and accurately measure and transmit pressure data while maintaining good sealing performance. The following is a detailed description of the specific implementation of the engine and its pressure and temperature probe.

[0013] Reference Figure 3 The engine of this embodiment mainly includes key components such as an outer casing 1, an inner casing 4, and a pressure and temperature probe 2. Among them, the inner casing 4 is the core part of the engine, and the top of the inner casing 4 is designed with an inner casing mounting seat 3 for mounting and fixing the pressure and temperature probe 2. The outer casing 1 is surrounded by the outer casing 4 to form the outer shell of the engine.

[0014] Reference Figure 4 The pressure and temperature probe 2 is a key component in this embodiment. Its unique structural design can ensure accurate pressure measurement data when the engine is running. The pressure and temperature probe 2 is mainly composed of a floating ring 6, a mounting screw 7, a pressure and temperature probe 8 and other parts. The floating ring 6 is arranged on the top of the pressure and temperature probe 2, and its function is to provide a supporting surface for a floating seal to adapt to the slight displacement or vibration that may occur during the operation of the engine. The material of the floating ring 6 is preferably a high-strength, corrosion-resistant alloy material to ensure that it has sufficient strength and durability during use.

[0015] Reference Figure 4-5The mounting screw 7 is sleeved inside the floating ring 6 and forms a matching relationship with the floating ring 6. The bottom of the mounting screw 7 is connected to the pressure and temperature probe 8, which is used to fix the pressure and temperature probe 8 inside the engine and transmit pressure data. A sealing ring mounting groove is provided on the spherical structure of the mounting screw 7, and the mounting groove is used to install an elastic metal sealing ring 10. The elastic metal sealing ring 10 is a high-performance sealing element, and its material is preferably a metal alloy with excellent elasticity and corrosion resistance. During the installation process, the elastic metal sealing ring 10 is compressed and tightly fits on the inner cylindrical surface of the floating ring 6 to form a reliable sealing barrier. The design of this floating sealing structure enables the pressure and temperature probe 2 to maintain stable sealing performance during engine operation to prevent medium leakage.

[0016] The floating ring 6 not only plays a supporting and sealing role, but also realizes a clearance fit with the mounting hole through its unique structural design. A clearance fit pressure plate 11 is provided on the top of the floating ring 6. The function of the pressure plate 11 is to axially position the floating ring 6 to prevent it from axial displacement during the operation of the engine. At the same time, the clearance fit between the pressure plate 11 and the floating ring 6 enables the floating ring 6 to float radially to a certain extent to adapt to the slight deformation or vibration that may occur inside the engine. This design not only improves the sealing performance of the pressure and temperature probe 2, but also enhances its adaptability and stability.

[0017] Reference Figure 5 The pressure and temperature probe 2 is provided with an internal probe pipeline 9, which is used to transmit the pressure sensed by the pressure and temperature probe 8 to the outside of the engine. At the top of the pressure and temperature probe 2, an output connector 5 is provided, and the nozzle is connected to the internal probe pipeline 9. When the pressure and temperature probe 8 senses the pressure inside the engine, the pressure is transmitted to the output connector 5 through the internal probe pipeline 9, and finally led to the outside of the engine for monitoring and analysis. This design enables the pressure and temperature probe 2 to measure the pressure data inside the engine in real time and accurately, providing strong support for the operation monitoring and maintenance of the engine.

[0018] During the installation process, the installation screw 7 and the inner casing mounting seat 3 are connected by thread. This connection method is not only simple and easy, but also has high connection strength and stability. By adjusting the tightness of the threaded connection, the pressure and temperature probe 2 can be accurately installed and positioned. At the same time, the threaded connection also has good self-locking performance, which can prevent the pressure and temperature probe 2 from loosening or falling off during the operation of the engine to a certain extent.

[0019] As the core component of the pressure and temperature probe 2, the design of the pressure and temperature probe 8 is also crucial. A spherical structure is provided on the pressure and temperature probe 8, and the spherical structure cooperates with the conical structure on the inner casing mounting seat 3 to form a reliable sealing connection. This cooperation between the spherical surface and the conical surface not only has good sealing performance, but also can adapt to the slight deformation or vibration that may occur inside the engine. At the same time, the design of the spherical structure also enables the pressure and temperature probe 8 to automatically adjust its position during the installation process to ensure a close fit with the inner casing mounting seat 3.

[0020] During the operation of the engine, the working principle of the pressure and temperature probe 2 is as follows: when the engine is working, the internal air flow medium acts on the pressure and temperature probe 8. The pressure and temperature probe 8 converts the pressure and temperature sensed into electrical signals or other forms of signals, and transmits them to the output connector 5 through the probe internal pipeline 9. Finally, the signal is led to the outside of the engine for monitoring and analysis. Since the pressure and temperature probe 2 adopts a floating sealing structure and a matching method of a spherical surface and a conical surface, it can maintain stable sealing performance and measurement accuracy during the operation of the engine.

[0021] In specific implementation, the engine and the pressure and temperature probe of this embodiment can be assembled and debugged according to the following steps: First, install the floating ring 6 in the mounting hole of the outer casing 1 and ensure that there is a clearance fit between it and the mounting hole. Then, install the elastic metal sealing ring 10 in the sealing ring mounting groove of the mounting screw 7, and insert the mounting screw 7 into the interior of the floating ring 6. Next, connect the pressure and temperature probe 8 to the bottom of the mounting screw 7 and ensure that it matches the conical surface structure on the inner casing mounting seat 3. At this time, the pressure and temperature probe 2 can be accurately installed and positioned by adjusting the threaded connection tightness of the mounting screw 7.

[0022] After assembly, the pressure and temperature probe 2 needs to be debugged and calibrated. First, the measurement accuracy and stability of the pressure and temperature probe 2 can be checked by applying a known pressure and temperature to the inside of the engine. Then, the output signal of the pressure and temperature probe 2 at different pressures and temperatures is observed and recorded to ensure that it can correctly reflect the changes in the pressure and temperature inside the engine. If the pressure and temperature probe 2 is found to have measurement errors or instability, it can be corrected by adjusting its installation position or replacing the sealing element.

[0023] In addition, in order to ensure that the pressure and temperature probe 2 maintains good performance during long-term use, it is also necessary to perform regular maintenance and care on it. Specifically, the pressure and temperature probe 2 can be cleaned and inspected regularly to remove dirt and impurities on its surface. At the same time, it is also necessary to check the wear of sealing components such as the elastic metal sealing ring 10, and replace severely worn components in a timely manner. In addition, the pressure and temperature probe 2 can also be calibrated and verified regularly to ensure that its measurement accuracy and stability meet the design requirements.

[0024] In the specific application process, the engine and its pressure and temperature probe of this embodiment can be widely used in various types of aircraft engines and gas turbines. For example, by installing the pressure and temperature probe 2 in key parts such as the air intake, combustion chamber, and turbine of an aircraft engine, the pressure changes inside the engine can be monitored in real time, providing strong support for the operation monitoring and maintenance of the engine. At the same time, since this embodiment adopts a floating seal structure and a matching method of a spherical surface and a conical surface, it can adapt to the complex working environment inside the engine and the high measurement accuracy required.

[0025] In addition, the engine and its pressure and temperature probe of this embodiment can also be customized and optimized according to specific needs. For example, the length, diameter and other parameters of the pressure and temperature probe 2 can be adjusted according to the model and specifications of the engine to meet different measurement requirements. At the same time, according to the specific measurement requirements, the appropriate sensor type and signal processing circuit can be selected to improve the measurement accuracy and stability.

[0026] In summary, this embodiment provides an engine using a floating sealed pressure and temperature probe, which has a unique structural design and a reliable working principle, and can measure the pressure data inside the engine in real time and accurately, while maintaining good sealing performance. By adopting a floating sealing structure and the matching method of the spherical surface and the conical surface, this embodiment can adapt to the complex working environment and high measurement accuracy requirements inside the engine, and provide strong support for the operation monitoring and maintenance of the engine. At the same time, this embodiment also has broad application prospects and customization possibilities, and can be customized and optimized according to specific needs to meet the measurement needs of different fields and industries.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An engine using a floatable sealed pressure and temperature probe, characterized in that: include: An outer casing (1), an inner casing (4), and a pressure and temperature probe (2), wherein the top of the inner casing (4) is provided with an inner casing mounting seat (3); The pressure and temperature probe (2) comprises a floating ring (6) arranged at the top, a mounting screw (7) sleeved inside the floating ring (6), and a pressure and temperature probe (8) connected to the bottom of the mounting screw (7); a sealing ring mounting groove is provided on the spherical structure of the mounting screw (7); an elastic metal sealing ring (10) is installed in the sealing ring mounting groove and is sealed with the inner cylindrical surface of the floating ring (6); the floating ring (6), the elastic metal sealing ring (10) and the mounting screw (7) form a floating sealing structure; the floating ring (6) is installed in the mounting hole of the outer casing (1); and the pressure and temperature probe (8) is arranged in the mounting through hole of the inner casing mounting seat (3).

2. The engine using a floatable seal pressure and temperature probe according to claim 1, characterized in that: A pressure plate (11) with a clearance fit is provided on the top of the floating ring (6).

3. The engine using a floatable seal pressure and temperature probe according to claim 1, characterized in that: A probe internal pipeline (9) is provided inside the pressure and temperature probe (2), an output connector (5) is provided at the top of the pressure and temperature probe (2), the probe internal pipeline (9) is in communication with the output connector (5), and the pressure and temperature sensed by the pressure and temperature probe (8) are respectively led to the outside of the engine through the probe internal pipeline (9) and the output connector (5).

4. The engine using a floatable seal pressure and temperature probe according to claim 1, characterized in that: The mounting screw (7) is threadedly connected to the inner casing mounting seat (3).

5. The engine using a floatable seal pressure and temperature probe according to claim 1, characterized in that: The pressure and temperature probe (8) is provided with a spherical structure, and the inner casing mounting seat (3) is provided with a conical structure. The spherical structure on the pressure and temperature probe (8) is sealingly connected to the conical structure on the inner casing mounting seat (3).

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