CN218297502U

CN218297502U - Calibration platform for SF6 online leakage alarm sensor

Info

Publication number: CN218297502U
Application number: CN202222461533.2U
Authority: CN
Inventors: 魏征
Original assignee: Henan Langshuo Electric Power Technology Co ltd; Henan Langshuo Measurement And Testing Co ltd; Bazhou Power Supply Co Of State Grid Xinjiang Electric Power Co ltd
Current assignee: Henan Langshuo Electric Power Technology Co ltd; Henan Langshuo Measurement And Testing Co ltd; Bazhou Power Supply Co Of State Grid Xinjiang Electric Power Co ltd
Priority date: 2022-09-17
Filing date: 2022-09-17
Publication date: 2023-01-13
Anticipated expiration: 2032-09-17

Abstract

SF6 online leakage alarm sensor calibration platform, including workstation, storage device, standard calibration part, actual calibration part, standard calibration part and actual calibration part are connected with the workstation communication respectively, the storage has SF6 gas in the storage device, storage device is connected with standard calibration part, actual calibration part respectively, standard calibration part includes the standard sensor, actual calibration part includes connector, protection casing, the one end of connector with storage device connects, and the other end of connector is equipped with the interface of being connected with the alarm sensor that needs the calibration, the protection casing covers the outside of establishing at the connector. The utility model discloses can judge through the contrast and wait to examine whether the sensor is in good state, realize online check-up.

Description

Calibration platform for SF6 online leakage alarm sensor

Technical Field

The utility model belongs to the technical field of the sensor check-up is surveyed, especially, SF6 leaks alarm sensor check-up platform on line.

Background

SF6 is a non-toxic, tasteless, colorless, odorless and non-combustible synthetic gas, has insulation property and arc extinguishing capability which are incomparable with common dielectric medium, and is widely applied to high-voltage circuit breakers and transformation equipment in the worldwide electric power industry.

In the in-service use in-process, in order to detect the sealed condition of SF6 gas storage position in time, generally need use leakage alarm sensor, when SF6 gas leakage, can detect SF6 gas and send alarm signal under alarm sensor's effect, the staff of being convenient for in time knows. However, in the use process, the sensor generally needs to be checked regularly to ensure a better detection effect, and at present, when the alarm sensor is checked, the sensor in use generally needs to be detached and reinstalled for use after being checked to be qualified, so that the use of equipment can only be stopped during checking, and the working efficiency is influenced. And the work efficiency is affected by the need for disassembly and reinstallation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a SF6 online leakage alarm sensor calibration platform can judge through the contrast whether waiting to examine the sensor and be in good state, has realized online calibration.

The utility model provides a SF6 online leakage alarm sensor calibration platform, its technical scheme who solves technical problem includes workstation, storage device, standard calibration part, actual calibration part, standard calibration part and actual calibration part are connected with the workstation communication respectively, the storage has SF6 gas in the storage device, storage device is connected with standard calibration part, actual calibration part respectively, standard calibration part includes standard sensor, actual calibration part includes connector, protection casing, the one end of connector with storage device connects, and the other end of connector is equipped with the interface of being connected with the alarm sensor that needs the calibration, the outside at the connector is established to the protection casing cover. Through having set up standard check-up part, can regard as the check-up standard, through setting up storage part, can let in equivalent gas to calibration check-up part and actual check-up part simultaneously, and then can carry out the comparison each other better, reach better check-up effect, through setting up the protection casing, can avoid at gaseous leakage, cause gaseous diffusion, through the workstation, can receive standard check-up part and actual check-up part's detected signal simultaneously and carry out the comparison.

Preferably, storage device includes storage jar, air inlet, gas outlet, the air inlet of storage jar is equipped with sealed lid, be equipped with two gas outlets on the lateral wall of storage jar. The gas can be supplemented into the storage tank through the gas inlet, and the standard verification component and the actual verification component can be connected through the two outlets at the same time.

Preferably, one of the air outlets and the standard calibration component are connected through a pipeline, a first valve body is arranged on the pipeline, the other air outlet is connected through a connector through a pipeline, a second valve body is arranged on the pipeline, and flowmeters are arranged on the pipelines respectively. The flow of the gas in the storage tank to the standard verification component and the actual verification component can be conveniently controlled, and the equivalent flow can be conveniently controlled.

Preferably, the first valve body and the second valve body are both one-way valves. Avoiding the reverse flow of gas.

Preferably, the interface on the connector is a threaded connection structure. The connector is convenient to be connected with the sensor to be detected, and the sealing effect is ensured.

Preferably, the one end of protection casing is open structure and is equipped with the toper cover, the toper cover is flexible material, the one end suit of protection casing on the outer fringe of connector and with between the connector sealing connection.

Preferably, a negative pressure absorption part is arranged on the side wall of the protective cover. The leaked gas can be absorbed.

Preferably, a display screen is arranged on the workbench. Facilitating the visual display of the received detection signal.

Preferably, the workbench is connected with the standard sensor through a first communication cable, a second communication cable is connected to the workbench, and the other end of the second communication cable is used for connecting the alarm sensor to be detected.

Preferably, the workbench is provided with a positioning frame for fixing the standard calibration component. The standard calibration component is convenient to store and fix when not in use, and the overall size is reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the protective cover of the present invention;

fig. 3 is a schematic diagram of the state of the standard calibration component installed on the positioning frame.

In the figure: 1. a work table; 2. storing the tank; 3. an air inlet; 4. an air outlet; 5. a connector; 6. a protective cover; 7. a first valve body; 8. a second valve body; 9. a conical sleeve; 10. a negative pressure absorbing member; 11. a positioning frame; 12. a first communication cable; 13. a second communication cable; 14. a standard verification component; 15. a display screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

An SF6 online leakage alarm sensor calibration platform is shown in figures 1-3 and comprises a workbench 1, a storage device, a standard calibration component 14 and an actual calibration component, wherein the standard calibration component 14 and the actual calibration component are respectively in communication connection with the workbench 1, so that during actual calibration, the standard calibration component 14 and the actual calibration component can transmit detection signals to the workbench 1 for comparison and display, SF6 gas is stored in the storage device, the storage device is respectively connected with the standard calibration component 14 and the actual calibration component, the storage device can simultaneously introduce gas into the standard calibration component 14 and the actual calibration component, and the same detection environment is created, wherein the standard calibration component 14 comprises a standard sensor, the standard sensor is used as a calibration standard, a standard value is provided, and the sensor to be detected can be better calibrated.

The utility model discloses in, the actual check-up part includes connector 5, protection casing 6, the one end of connector 5 with storage device connects, and the other end of connector 5 is equipped with the interface of being connected with the alarm sensor who needs the check-up, 6 covers of protection casing are established in the outside of connector 5. The utility model is provided with the standard checking component 14 which can be used as a checking standard, and when checking, the same amount of the same gas is introduced into the calibration checking component and the actual checking component at the same time, and the calibration checking component and the actual checking component are compared with each other, so that a better checking effect is achieved; through setting up protection casing 6, can avoid at gaseous leakage, cause gaseous diffusion, through workstation 1, can receive standard verification component 14 and actual verification component's detected signal simultaneously and compare.

The utility model discloses one of them embodiment of storage device includes storage jar 2, air inlet 3, gas outlet 4, storage jar 2's air inlet 3 is equipped with sealed lid, be equipped with two gas outlets 4 on the lateral wall of storage jar 2. The gas can be supplemented into the storage tank 2 through the gas inlet 3, and the standard verification component 14 and the actual verification component can be simultaneously connected through the two outlets.

In order to guarantee at the check-up in-process, let in gas to standard check-up part 14 and actual check-up part and carry out the control of waiting more preferably, the utility model discloses in, one of them be equipped with first valve body 7 through pipe connection and on the pipeline between gas outlet 4 and the standard check-up part 14, another gas outlet 4 has connector 5 to connect through the pipeline and is equipped with second valve body 8 on the pipeline, be equipped with flowmeter (not shown in the figure) on the pipeline respectively. The control of the flow of the gas in the storage tank 2 to the standard verification component 14 and the actual verification component and the control of the equivalent flow are facilitated, so that various variables can be controlled, and the verification accuracy can be improved.

In order to avoid the palirrhea of gas, the utility model discloses first valve body 7 and second valve body 8 are the check valve. Avoiding the reverse flow of gas. The interface on the connector 5 is a threaded connection structure. The connector 5 is convenient to be connected with a sensor to be measured, and good sealing effect can be guaranteed due to the design of the threaded structure.

In order to play better sealed effect, the utility model discloses in, the one end of protection casing 6 is open structure and is equipped with conical sleeve 9, and conical sleeve 9 is flexible material, the one end suit of protection casing 6 in the outer fringe of connector 5 and with connector 5 between sealing connection. When the sensor is used, one end of the opening of the protective cover 6 can be covered on the outer side of the sensor to be detected, the periphery of the sensor to be detected can be conveniently sealed through the flexible structure, and the checking effect is improved. Wherein, the side wall of the protective cover 6 is provided with a negative pressure absorbing part 10 which can absorb the leaked gas and reduce the gas leakage problem caused by poor sealing effect.

The utility model discloses in, be equipped with display screen 15 on workstation 1. The received detection signal is conveniently and visually displayed, and workers can see the standard verification component 14 and the interpolation value actually detected by the actual verification component conveniently, so that a better verification effect is achieved.

The utility model discloses in, be connected through first communication cable 12 between workstation 1 and the standard sensor, be connected with second communication cable 13 on the workstation 1, the other end of second communication cable 13 is used for connecting the alarm sensor who detects the detection, when not checking up the operation, second communication cable 13 and first communication cable 12 can be torn open and deposit, when needs check up, be connected the both ends of first communication cable 12 with workstation 1 and standard check up part 14 respectively, second communication cable is connected with workstation 1 and actual check up part, and be connected the interface one end of connector 5 with the sensor that awaits measuring, and then can let in the detection position of the sensor that awaits measuring with the gas in the storage jar 2 better, carry out the contrast that detects the structure through standard check up part 14 and actual check up part, and then reach the check up effect.

In order to facilitate carrying and storage of the whole device, the utility model discloses be equipped with the locating rack 11 that is used for fixed standard calibration part 14 on workstation 1. The standard verification component 14 is convenient to store and fix when not in use, and the overall size is reduced.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims

The calibration platform for the SF6 online leakage alarm sensor is characterized by comprising a workbench (1), a storage device, a standard calibration component (14) and an actual calibration component, wherein the standard calibration component (14) and the actual calibration component are respectively in communication connection with the workbench (1), SF6 gas is stored in the storage device, the storage device is respectively connected with the standard calibration component (14) and the actual calibration component, the standard calibration component (14) comprises a standard sensor, the actual calibration component comprises a connector (5) and a protective cover (6), one end of the connector (5) is connected with the storage device, the other end of the connector (5) is provided with an interface connected with the alarm sensor to be calibrated, and the protective cover (6) covers the outside of the connector (5).
2. SF6 online leakage alarm sensor verification platform as per claim 1, wherein said storage means comprises a storage tank (2), an air inlet (3), an air outlet (4), said air inlet (3) of storage tank (2) is provided with a sealing cover, and said side wall of storage tank (2) is provided with two air outlets (4).
3. The SF6 online leakage alarm sensor verification platform of claim 2, wherein one of the outlets (4) is connected to the standard verification component (14) through a pipe and is provided with a first valve body (7), the other outlet (4) is connected through a pipe and is provided with a connector (5) and is provided with a second valve body (8), and the pipes are respectively provided with a flowmeter.
4. The SF6 online leak alarm sensor verification platform of claim 3, wherein the first valve body (7) and the second valve body (8) are both one-way valves.
5. The SF6 online leakage alarm sensor verification platform of claim 1, wherein an interface on said connector (5) is a threaded connection.
6. The SF6 online leakage alarm sensor calibration platform of claim 1, wherein one end of the shield (6) is open and provided with a tapered sleeve (9), the tapered sleeve (9) is made of a flexible material, and one end of the shield (6) is sleeved on the outer edge of the connector (5) and is hermetically connected with the connector (5).
7. The SF6 online leak alarm sensor verification platform of claim 6, wherein a negative pressure absorbing member (10) is provided on a sidewall of the shield (6).
8. The SF6 online leak alarm sensor verification platform of claim 1, wherein a display screen (15) is provided on said table (1).
9. The SF6 online leakage alarm sensor verification platform of claim 1, wherein the workbench (1) is connected with a standard sensor through a first communication cable (12), a second communication cable (13) is connected to the workbench (1), and the other end of the second communication cable (13) is used for connecting an alarm sensor to be detected.
10. The SF6 online leak alarm sensor verification platform of claim 1, wherein a locating rack (11) for fixing standard verification components (14) is provided on the table (1).