Intelligent monitoring system based on density meter and SF6 digital density meter
By designing a triple-seal structure on the SF6 digital density meter, the problem of poor sealing performance was solved, achieving higher sealing performance and measurement accuracy, and enhancing the reliability and durability of the equipment.
Patent Information
- Application Number
- CN202411752431.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2044-12-02
AI Technical Summary
The existing SF6 digital density meters have a simple sealing design, resulting in poor sealing performance, leakage risk, and affecting measurement accuracy and safety.
It adopts a triple sealing structure, including a lowering component, a pressing component, and a clamping component. Multiple seals are formed through spiral lifting, expansion, and pressing. Combined with rubber and plastic connectors, the sealing effect is enhanced.
It effectively prevents SF6 gas leakage, improves sealing and structural strength, ensures measurement stability and accuracy, and enhances equipment reliability and durability.
Smart Images

Figure CN119574374B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of SF6 digital density table technology, specifically relating to an intelligent monitoring system based on a density table and an SF6 digital density table. Background Technology
[0002] The SF6 digital density meter is installed on the three-way valve of the GIS to monitor the SF6 gas density in real time. The data is then uploaded to the intelligent edge IoT agent in real time via RS485 / LORA transmission. The intelligent edge IoT agent stores, displays, and processes the received data.
[0003] The SF6 digital density meters currently in use have a rather rudimentary sealing design, relying solely on a single sealing ring to achieve an overall sealing effect. This design is not only structurally simplistic, lacking the necessary redundancy and complexity to cope with diverse working environments and potential sealing challenges, but also often fails to deliver satisfactory sealing performance in practical applications.
[0004] Due to the simplicity of the sealing structure, SF6 digital density meters have a high risk of leakage during use. If the sealing ring is damaged or loosened due to aging, wear, or improper installation, SF6 gas may leak. This not only affects the measurement accuracy and stability of the density meter but may also pose a potential threat to the surrounding environment and personnel safety. Summary of the Invention
[0005] The purpose of this invention is to provide an intelligent monitoring system based on a density table and an SF6 digital density table, so as to solve the problem of insufficient sealing effect of the SF6 digital density table mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: an SF6 digital density meter, comprising a meter body, a wireless transmission block connected to the side of the meter body, which transmits the data collected by the meter body in actual use; a connecting pipe connected to the bottom of the meter body, which connects to the external structure being detected; and a sealing assembly, which consists of a pressing member, a clamping member, and a pressing member. The pressing member is screwed onto the connecting pipe in a spiral lifting manner, pressing down to achieve a first layer of sealing between the connecting pipe and the port of the connected device; the clamping member is fixed in the middle region of the connecting pipe, and its circumference extends outward from the connecting pipe, clamping against the inner wall of the connection port of the external device, thus achieving a second layer of sealing; the pressing member is located at the bottom end face of the connecting pipe and clamps against the bottom end face of the connecting pipe, thus forming a third layer of sealing. The triple sealing improves the sealing performance after connection and prevents leakage.
[0007] As a preferred technical solution of the present invention, the pressing component includes a tightening ring, the inner wall of which is threadedly connected to the outer wall of the connecting pipe. The threaded connection between the two is not shown in the figure. Since this structure is prior art, it will not be described in detail. The bottom of the tightening ring is also connected to a retaining ring. During installation, the retaining ring is used to achieve a tight seal at the interface with the external equipment.
[0008] As a preferred technical solution of the present invention, the top of the abutment ring is also fixed with a connecting post at an equal angle, and the bottom end face of the tightening ring is provided with a hole for the connecting post to be inserted with interference fit, so as to achieve a stable connection between the two. The connecting post and the abutment ring are made of rubber, while the tightening ring is made of plastic. All three have the function of deformation, thereby achieving normal assembly and sealing.
[0009] As a preferred technical solution of the present invention, an annular groove is provided in the middle section of the threaded area connecting the connecting pipe to the external device. The abutting member includes a sealing ring fitted in the annular groove. The sealing ring has a vertical part and an inclined part. The inner wall of the vertical part fits against the inner wall of the annular groove, and multiple locking rings are fitted on the outer surface of the vertical part. The locking rings abut against the sealing ring, thereby improving the stability of the installation position of the sealing ring. The inclined part gradually expands and tilts from the bottom to the top of the connecting pipe. In the connection between the connecting pipe and the external device, a tight seal is achieved in the middle of the connection area, while ensuring that the normal threaded connection is not affected.
[0010] As a preferred technical solution of the present invention, the bottom end of the connecting pipe is provided with a flared groove with an isosceles trapezoidal longitudinal section, and a bottom ring is inserted into the flared groove. The third seal is achieved by the bottom ring abutting against the interface of the external equipment.
[0011] As a preferred technical solution of the present invention, a protective mirror is installed on the inner side of the front surface of the watch body. An installation shaft is installed at the center of the protective mirror. A scraper that rotates around the axis is sleeved on the installation shaft. The scraper is in contact with the surface of the protective mirror. The surface of the protective mirror is cleaned by rotating the scraper.
[0012] As a preferred technical solution of the present invention, the scraper has a groove on the side facing the protective mirror, and a sponge is inserted into the groove to achieve cleaning and wiping.
[0013] This invention also discloses an intelligent monitoring system based on a density table, including an SF6 digital density table. The intelligent monitoring system includes a main control terminal and components connected to the main control terminal.
[0014] The automatic calibration module automatically calibrates the SF6 digital density meter according to preset parameters to ensure the accuracy of the measurement results.
[0015] The data recording module receives the detection data from the SF6 digital density table, records the monitoring data synchronously, and stores it in the internal storage or on the cloud server.
[0016] The intelligent early warning module intelligently analyzes the monitoring data based on preset thresholds, and automatically triggers an early warning or alarm mechanism when the data exceeds the threshold.
[0017] The data analysis module performs in-depth analysis of the monitoring data from the SF6 digital density table, extracts valuable information, and presents it visually through charts and reports.
[0018] The remote monitoring module enables real-time monitoring and control of the monitoring system via a remote network, including viewing real-time data and adjusting monitoring parameters.
[0019] Compared with the prior art, the beneficial effects of the present invention are:
[0020] Through the designed sealing components, multiple independent yet collaborative sealing layers are formed in key areas of the SF6 digital density meter. These sealing layers not only effectively prevent SF6 gas leakage but also provide additional safety protection when faced with external interference such as pressure and temperature changes. Furthermore, the multi-layered sealing design enhances the overall structural strength of the SF6 digital density meter, enabling it to maintain excellent sealing performance and measurement accuracy even in harsh working environments such as vibration and impact. This design not only improves the reliability and durability of the SF6 digital density meter but also provides users with more stable and accurate measurement results. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of the present invention;
[0022] Figure 2 This is a cross-sectional view of the connection between the connecting pipe and the sealing assembly of the present invention;
[0023] Figure 3 For the present invention Figure 2 Enlarged view of region A in the middle;
[0024] Figure 4 This is a schematic diagram of the structure of the present invention with the protective goggles removed;
[0025] Figure 5 This is a system diagram of the present invention.
[0026] In the picture:
[0027] 100. Meter body; 101. Wireless transmission block; 102. Connecting pipe; 103. Ring groove; 104. Flared groove;
[0028] 200. Tightening ring; 201. Sealing ring; 202. Connecting post; 203. Abutment ring; 204. Locking ring; 205. Bottom ring;
[0029] 300. Protective goggles; 301. Scraper; 302. Mounting shaft. Detailed Implementation
[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0031] Please see Figures 1 to 5 This invention provides a technical solution: an SF6 digital density table, comprising...
[0032] The meter body 100 has a wireless transmission block 101 connected to its side. In actual use, the data collected by the meter body 100 is transmitted through the wireless transmission block 101. The bottom of the meter body 100 is also connected to a connecting tube 102, which is used to connect to the external structure being detected.
[0033] Also includes
[0034] The sealing assembly consists of a pressing member, a stop member, and a clamping member, wherein...
[0035] The pressing component is sleeved on the connecting pipe 102 in a spiral lifting manner. By pressing down, the connecting pipe 102 is pressed tightly against the port of the connecting equipment, thus achieving the first layer of sealing.
[0036] The clamping member is fixed in the middle region of the connecting pipe 102. The clamping member extends outward from the connecting pipe 102 around its perimeter. The extended portion abuts against the inner wall region of the external equipment connection port, thereby achieving a second layer of sealing.
[0037] The clamping element is located at the bottom end face of the connecting pipe 102 and abuts against the bottom end face of the connecting pipe 102, thereby forming a third seal. The triple seal improves the sealing performance after connection and prevents leakage.
[0038] In this embodiment, the pressing component includes a tightening ring 200, the inner wall of which is threadedly connected to the outer wall of the connecting pipe 102. The threaded connection between the two is not shown in the figure. Since this structure is existing technology, it will not be described in detail. The bottom of the tightening ring 200 is also connected to a retaining ring 203. During installation, the retaining ring 203 is used to achieve a tight seal at the interface with the external equipment.
[0039] In this embodiment, the top of the abutment ring 203 is also fixed with a connecting post 202 at an equal angle, and the bottom end face of the tightening ring 200 is provided with a hole for the connecting post 202 to be inserted through an interference fit, so as to achieve a stable connection between the two. The connecting post 202 and the abutment ring 203 are made of rubber, while the tightening ring 200 is made of plastic. All three have the function of deformation, thereby achieving normal assembly and sealing.
[0040] In this embodiment, an annular groove 103 is provided in the middle section of the threaded area where the connecting pipe 102 connects to the external device. The abutting component includes a sealing ring 201 fitted in the annular groove 103. The sealing ring 201 has a vertical part and an inclined part. The inner wall of the vertical part fits against the inner wall of the annular groove 103, and a plurality of locking rings 204 are fitted on the outer surface of the vertical part. The locking rings 204 abut against the sealing ring 201 to improve the stability of the installation position of the sealing ring 201. The inclined part gradually expands and tilts from the bottom to the top of the connecting pipe 102. In the port connection between the connecting pipe 102 and the external device, a tight seal is achieved in the middle of the connection area, while ensuring that the normal threaded connection is not affected.
[0041] In this embodiment, the bottom end of the connecting pipe 102 is provided with a flared groove 104 with an isosceles trapezoidal longitudinal section. A bottom ring 205 is inserted into the flared groove 104, and a third seal is achieved by the bottom ring 205 abutting against the interface of the external equipment.
[0042] In this embodiment, a protective mirror 300 is installed on the inner side of the front surface of the watch body 100. A mounting shaft 302 is installed at the center of the protective mirror 300. A scraper 301 that rotates around the axis is sleeved on the mounting shaft 302. The scraper 301 is in contact with the surface of the protective mirror 300. The surface of the protective mirror 300 is cleaned by rotating the scraper 301.
[0043] In this embodiment, the scraper 301 has a groove on the side facing the protective mirror 300, and a sponge is placed in the groove to achieve cleaning and wiping.
[0044] This invention also discloses an intelligent monitoring system based on a density table, including an SF6 digital density table. The intelligent monitoring system includes a main control terminal and components connected to the main control terminal.
[0045] The automatic calibration module automatically calibrates the SF6 digital density meter according to preset parameters to ensure the accuracy of the measurement results.
[0046] The data recording module receives the detection data from the SF6 digital density table, records the monitoring data synchronously, and stores it in the internal storage or on the cloud server.
[0047] The intelligent early warning module intelligently analyzes the monitoring data based on preset thresholds, and automatically triggers an early warning or alarm mechanism when the data exceeds the threshold.
[0048] The data analysis module performs in-depth analysis of the monitoring data from the SF6 digital density table, extracts valuable information, and presents it visually through charts and reports.
[0049] The remote monitoring module enables real-time monitoring and control of the monitoring system via a remote network, including viewing real-time data and adjusting monitoring parameters.
[0050] Although embodiments of the invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An SF6 digital density gauge, comprising a gauge body (100) connected with a wireless transmission block (101) at the side of the gauge body (100); characterized in that further comprising a sealing assembly, which is composed of a pressing-down piece, a pressing piece and a pressing piece, wherein the pressing-down piece is sleeved on the connecting pipe (102) in a spiral lifting manner; the pressing piece is fixed at the middle area of the connecting pipe (102), and the periphery of the pressing piece expands towards the outside of the connecting pipe (102); the pressing piece is at the bottom end face of the connecting pipe (102) and abuts against the bottom end face of the connecting pipe (102); the pressing-down piece comprises a tightening ring (200), the inner wall of the tightening ring (200) is threadedly connected with the outer wall of the connecting pipe (102), and the bottom of the tightening ring (200) is further connected with a pressing ring (203); the top of the pressing ring (203) is further fixed with a connecting column (202) at equal angles, the bottom end face of the tightening ring (200) is provided with a hole for the connecting column (202) to be inserted with interference, the connecting column (202) and the pressing ring (203) are rubber members, and the tightening ring (200) is a plastic member; the middle section of the threaded area where the connecting pipe (102) is connected with the external device is provided with a ring groove (103), and the pressing piece comprises a sealing rubber ring (201) sleeved at the ring groove (103), the sealing rubber ring (201) has a vertical part and an inclined part, the inner wall of the vertical part is fitted with the inner wall of the ring groove (103), and a plurality of locking rings (204) are sleeved on the outer surface of the vertical part, the locking ring (204) abuts against the sealing rubber ring (201), and the inclined part gradually expands and inclines from the bottom to the top of the connecting pipe (102); the bottom end of the connecting pipe (102) is provided with an expanding groove (104) with an isosceles trapezoidal longitudinal section, and a bottom ring (205) is inserted into the expanding groove (104); the front surface of the gauge body (100) is provided with a protective mirror (300), the center position of the protective mirror (300) is provided with a mounting shaft (302), the mounting shaft (302) is sleeved with a scraper (301) rotating around its axis, and the scraper (301) is fitted with the surface of the protective mirror (300); the side of the scraper (301) towards the protective mirror (300) is provided with a groove, and a sponge is inserted into the groove.
2. A density table based intelligent monitoring system comprising the SF6 digitized density table as claimed in claim 1, characterized in that: The intelligent monitoring system comprises a master control terminal, and an automatic calibration module, which automatically calibrates the SF6 digital density gauge according to the preset parameters to ensure the accuracy of the measurement results; a data recording module, which receives the detection data of the SF6 digital density gauge and synchronously records the monitoring data, and stores it in the internal storage or the cloud server; an intelligent early warning module, which intelligently analyzes the monitoring data according to the preset threshold value, and automatically triggers the early warning or alarm mechanism when the data exceeds the threshold value; a data analysis module, which deeply analyzes the monitoring data of the SF6 digital density gauge, extracts valuable information, and visually displays it in the form of charts or reports. Remote monitoring module, real-time monitoring and control of the monitoring system through a remote network, including viewing real-time data and adjusting monitoring parameters.
Citation Information
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