Portable ultrahigh frequency partial discharge sensor fixing device
By designing a portable UHF partial discharge sensor mounting device, which employs a U-shaped handle structure and a limiting device, the stability and adaptability issues of traditional mounting methods are solved, achieving stable sensor fit and rapid detection, thereby improving the reliability and stability of the power system.
Patent Information
- Application Number
- CN202423013199.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-06
AI Technical Summary
Traditional methods for fixing partial discharge sensors suffer from poor stability and inability to adapt to different flange thicknesses and equipment shapes, resulting in large measurement errors and wasted human resources.
A portable UHF partial discharge sensor mounting device was designed. It adopts a connecting arm with a U-shaped handle structure, combined with a limiting device and anti-loosening nut. The sensor is securely attached by bolt tightening, which can adapt to flanges of different thicknesses and equipment shapes.
It improves the robustness and detection efficiency of sensors, reduces reliance on human resources, enables rapid response and fault prevention in partial discharge detection of power equipment, and enhances the reliability and stability of power systems.
Smart Images
Figure CN223692403U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to sensor fixed detection technical field, specifically a portable ultrahigh frequency partial discharge sensor fixing device. BACKGROUND
[0002] Power equipment, as an important part of the power grid, its operation state directly affects the safety and stability of the entire power grid. However, in the long-term operation process of power equipment, partial discharge phenomenon often occurs. Partial discharge is a partial discharge phenomenon occurring inside or on the surface of power equipment, which may not necessarily cause breakdown of the insulating material immediately, but its long-term existence will gradually damage the insulating layer, reduce the insulation performance of the equipment, shorten the service life of the equipment, and even cause serious power accidents in extreme cases. Therefore, it is particularly important to monitor and preventively maintain the partial discharge of power equipment in real time.
[0003] As an important monitoring tool, the ultrahigh frequency partial discharge sensor can efficiently and in real time capture the partial discharge condition of the equipment. Through the capture and analysis of the partial discharge signal, the possible insulation defects or potential fault hazards in the equipment can be discovered in time, so that appropriate preventive measures can be taken to avoid equipment damage and power accidents. The conventional partial discharge test generally uses handheld or stainless steel band binding methods to fix the sensor. However, these methods have certain limitations. The handheld test requires the operator to maintain a fixed posture for a long time, which not only wastes human resources but also is prone to measurement errors; and the stainless steel band binding fixing method will cause unstable fixation due to the differences in flange thickness and equipment shape, and the position of the sensor cannot be conveniently adjusted during the measurement process. SUMMARY
[0004] The utility model aims at providing a portable ultrahigh frequency partial discharge sensor fixing device, which can not only ensure the stability of the sensor and make it adhere to the surface of the equipment, but also adapt to different thicknesses of flanges and equipment shapes to meet the partial discharge detection requirements of different power equipment. The convenient installation and disassembly function of the device helps to improve the detection efficiency, reduce the dependence on human resources, and thus realize the rapid response of power equipment partial discharge detection and the early prevention of faults, thereby greatly improving the reliability and stability of the power system.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a portable ultrahigh frequency partial discharge sensor fixing device, comprising two structurally identical connecting arms, the connecting arms are integrally of open structure and fixedly connected with the object to be measured; the top of the connecting arm is provided with a bolt hole, and a sensor connecting bolt connected with the ultrahigh frequency partial discharge sensor is arranged in the bolt hole.
[0006] Preferably, the connecting arm is a U-shaped handle.
[0007] Preferably, the connecting arm is provided with a limiting device on both sides, and the limiting device is a fixed bolt.
[0008] Preferably, a threaded hole is arranged in the connecting arm, and the fixed bolt is used to fix the connecting arm and the object to be measured by cooperating with the threaded hole.
[0009] Preferably, a lock nut is further arranged, which is arranged on the fixed bolt and cooperates with the connecting arm.
[0010] Preferably, two bolt holes are arranged on each connecting arm.
[0011] Compared with the prior art, the utility model has the beneficial effects that:
[0012] The device not only ensures the stability of the sensor and makes it adhere to the surface of the equipment, but also can adapt to flanges and equipment shapes with different thicknesses and meet the partial discharge detection requirements of different power equipment. The convenient installation and disassembly function of the device helps to improve the detection efficiency, reduce the dependence on human resources, and thus realize the rapid response of power equipment partial discharge detection and the early prevention of faults, thereby greatly improving the reliability and stability of the power system. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0014] Figure 2 It is a reference for the use state of the utility model Figure One .
[0015] Figure 3 It is a reference for the use state of the utility model Figure Two .
[0016] In the figure: 1, connecting arm; 2, lock nut; 3, fixed bolt; 4, sensor connecting bolt; 5, ultrahigh frequency partial discharge sensor. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0018] In the description of the utility model, it needs to explain that, the terms "vertical", "upper", "lower", "horizontal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and thus cannot be understood as limiting the utility model.
[0019] In the description of the utility model, it also needs to explain that, unless otherwise explicitly specified and limited, the terms "setting", "mounting", "connecting", "connecting", "welding" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through intermediate medium, it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0020] Reference Figures 1-3 As shown in the utility model provides a kind of portable ultrahigh frequency partial discharge sensor fixing device, including two identical connecting arms 1, the connecting arm 1 is overall open structure and is fixedly connected with the object to be measured;The top of the connecting arm 1 is provided with bolt hole, the sensor connecting bolt 4 connected with ultrahigh frequency partial discharge sensor 5 is arranged in the bolt hole;Sensor connecting bolt 4 is directly connected with ultrahigh frequency partial discharge sensor 5, ensures the installation stability of ultrahigh frequency partial discharge sensor 5, and the position of ultrahigh frequency partial discharge sensor 5 can be adjusted flexibly by sensor connecting bolt 4, so that it is closely attached to the surface of the measured object.
[0021] The connecting arm 1 is a U-shaped handle;The connecting arm with U-shaped handle structure has good stability, can adapt to flanges or measured surfaces of different shapes;Its open structure makes the device easy to disassemble, while reducing the overall weight;The two sides of the connecting arm 1 are provided with limiting devices;Among them, the limiting device is fixed bolt 3;Threaded hole is arranged in the connecting arm 1, and the connecting arm 1 and the object to be measured are fixed by the fixed bolt 3 cooperating with the threaded hole;In the above embodiment, it also includes lock nut 2, the lock nut 2 is installed on the fixed bolt 3 and cooperates with the connecting arm 1;Lock nut 2 and fixed bolt 3 are used in combination, which can effectively prevent loosening caused by vibration during long-term use;At the same time, lock nut 2 plays a locking role, and fixed bolt 3 stably fixes the entire device on the measured surface through the threaded hole on the connecting arm 1;Two bolt holes are arranged on each connecting arm 1.
[0022] In summary, in use, the ultra-high frequency partial discharge sensor 5 is connected with the two connecting arms 1 through the four sensor connecting bolts 4, so as to form a whole. The four locking nuts 2 are screwed into the four fixing bolts 3 respectively to a proper depth, and then the four fixing bolts 3 are screwed into the threaded holes on the two sides of the U-shaped handle respectively. According to the flange thickness of the position to be measured, the distance between the fixing bolts 3 on the two sides of the U-shaped handle is adjusted to be slightly larger than the flange thickness. Then one hand holds the ultra-high frequency partial discharge sensor 5 closely to the flange to be measured, and the other hand uses a tool to tighten the fixing bolts 3, so that the end of the fixing bolt 3 is pressed against the flange to be measured. Then the locking nuts 2 are tightened, and the ultra-high frequency partial discharge sensor 5 is fixed.
[0023] By adjusting the distance between the fixing bolts 3 on the two sides of the U-shaped handle, the device can be applied to different flange thicknesses. The device has strong universality, is fastened by bolts, is convenient to disassemble and assemble, and has high reliability. The device can greatly improve the accuracy of measurement and the efficiency of measurement work.
[0024] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.
Claims
1. A portable ultrahigh frequency partial discharge sensor fixture, comprising: The utility model provides a kind of high-frequency partial discharge sensor fixing device, including two structurally identical connecting arms (1), the connecting arm (1) is open structure as a whole and is fixedly connected with the object to be measured;The top of the connecting arm (1) is provided with a bolt hole, and a sensor connecting bolt (4) connected with a very high frequency partial discharge sensor (5) is arranged in the bolt hole.
2. The portable UHF partial discharge sensor fixation device according to claim 1, characterized in that The connecting arm (1) is a U-shaped handle.
3. The portable UHF partial discharge sensor fixation device of claim 1, wherein, The two sides of the connecting arm (1) are provided with a limiting device; the limiting device is a fixed bolt (3).
4. The portable UHF partial discharge sensor fixation device according to claim 3, characterized in that The connecting arm (1) is provided with a threaded hole, and the fixed bolt (3) is fixed with the object to be measured by cooperating with the threaded hole.
5. The portable UHF partial discharge sensor fixation device according to claim 4, characterized in that It also includes a lock nut (2), which is installed on the fixed bolt (3) and cooperates with the connecting arm (1).
6. The portable UHF partial discharge sensor fixation device of claim 1, wherein, Each connecting arm (1) is provided with two bolt holes.