CN218994620U

CN218994620U - SF6 gas density relay calibrator

Info

Publication number: CN218994620U
Application number: CN202223420770.0U
Authority: CN
Inventors: 王志龙
Original assignee: Wuhan Nanluo Electric Co ltd
Current assignee: Wuhan Nanluo Electric Co ltd
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-05-09
Anticipated expiration: 2032-12-13

Abstract

The utility model discloses an SF6 gas density relay calibrator which comprises a calibrator main body and a public joint, wherein an air inlet pipe, an air release pipe and a measuring air pipe are sequentially arranged on the upper side of the front end of the calibrator main body from left to right, an air cylinder is arranged at the left end of the air inlet pipe, the public joint is arranged at the upper end of the measuring air pipe, and a transition joint is arranged at the upper end of the public joint. This SF6 gas density relay check gauge, the device is convenient for carry out quick check-up to the manometer of degree and normal atmospheric temperature when using, be convenient for show pressure under the measured ambient temperature, pressure, ambient temperature under the ambient temperature when 20 ℃, be favorable to improving the degree of automation of equipment, the device is convenient for accomplish the dynamic automatic compensation between pressure, the temperature, the manual gas circuit of having avoided loaded down with trivial details adjusts the operation, the density relay field check-up of most model switches of being convenient for, the device can protect equipment, be favorable to improving the wear-resisting placement performance of equipment, avoid taking place equipment slip when using.

Description

SF6 gas density relay calibrator

Technical Field

The utility model relates to the technical field of electricity, in particular to an SF6 gas density relay calibrator.

Background

The SF6 gas density relay is an important element for monitoring the SF6 gas density change in an SF6 switch body in operation, the performance of the SF6 gas density relay directly influences the operation safety of the SF6 switch, and an instrument for checking the SF6 gas density relay is called an SF6 gas density relay calibrator.

The utility model discloses a SF6 gas density relay check gauge as disclosed in publication No. CN212965313U, comprising a base plate, the middle-end fixedly mounted of bottom plate bottom has the motor, the output of motor runs through the internal face fixedly connected with bull stick of bottom plate bottom middle-end, the top fixedly connected with cylinder of bull stick, the spout has been seted up to the internal surface of cylinder, the middle-end fixed mounting at cylinder top has servo motor, servo motor's output runs through the internal surface fixedly connected with threaded rod of cylinder top middle-end, the bottom swing joint of threaded rod is in the middle-end of spout bottom, the middle-end sliding connection of spout inner chamber has the slider, the internal surface threaded connection of slider is in the surface of threaded rod middle-end. The utility model is provided with the rotating rod, the threaded rod, the sliding block and the sliding groove, achieves the purpose of adjustability, and solves the problem that the conventional SF6 gas density relay calibrator does not have an adjustable function, so that the use requirement of people is not met.

According to the SF6 gas density relay calibrator, supporting legs are arranged in a designated area through mounting holes, a motor is started to work through an external controller, the motor drives a rotating rod to rotate, the rotating rod drives a column to rotate, the column drives a stabilizing plate to rotate, a stabilizing plate drives balls to roll at the left end and the right end of the top of a bottom plate, a servo motor is started to work through the external controller, the servo motor drives a threaded rod to rotate, the threaded rod drives a sliding block to move up and down in an inner cavity of a sliding groove, the sliding block drives a connecting block to move up and down, the connecting block drives a connecting plate to move up and down, a cylinder is started to stretch through the external controller, the cylinder drives a mounting plate to perform vertical fan-shaped adjustment, the mounting plate drives a calibrator body to adjust, and the purpose of adjustability is achieved, but the automation degree of the calibrator is generally needs manual intervention, and complicated manual gas path adjustment operation exists.

Disclosure of Invention

The utility model aims to provide an SF6 gas density relay calibrator, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a SF6 gas density relay check gauge, includes check gauge main part and public joint, the front end upside of check gauge main part has set gradually intake pipe, bleed pipe and measurement trachea from a left side to the right side, and the left end of intake pipe is provided with the gas cylinder, public joint sets up in measuring tracheal upper end, and public joint's upper end is provided with the transition joint.

Furthermore, the common joint and the measuring air pipe are welded, and the common joint and the transition joint are in clamping connection.

Further, the right-hand member of transition joint is provided with density relay main part, and the lower extreme of density relay main part is provided with coupling assembling.

Further, the connecting assembly comprises a wiring cabinet and six-core test wires, and the six-core test wires are arranged at the left end of the wiring cabinet.

Further, the rear end of check gauge main part is provided with the protective housing, and the protective housing is the block with check gauge main part and is connected.

Further, the four corners of protective housing all is provided with crashproof arc pad, and crashproof arc pad and protective housing are the bonding.

Further, the rear end of protective housing is provided with the bottom plate, and protective housing and bottom plate are the welding.

Further, the rear end of the bottom plate is provided with wear-resistant protection pads, and the wear-resistant protection pads are provided with four.

The utility model provides an SF6 gas density relay calibrator, which has the following beneficial effects: the device is convenient for carry out quick check-up to the manometer of degree and normal atmospheric temperature, the pressure under the measured ambient temperature of being convenient for, the pressure under the ambient temperature when 20 ℃, ambient temperature is favorable to improving the degree of automation of equipment, the device is convenient for accomplish pressure measurement and 20 ℃ value conversion voluntarily to accomplish the dynamic automatic compensation between pressure, the temperature, avoided loaded down with trivial details manual gas circuit to adjust the operation, be furnished with multiple model transitional joint, the density relay of most model switches need not dismantle can carry out the field check-up, the device can protect equipment, be favorable to improving the wear-resisting placement performance of equipment, avoid taking place equipment slip when using.

1. According to the utility model, through the arrangement of the calibrator main body, the air inlet pipe, the air bottle, the air release pipe, the measuring air pipe, the public joint and the transition joint, after the air inlet pipe and the air release pipe are connected, an operator opens a valve on the air bottle and opens an instrument power supply, and if the pressure gauge calibration operation is required to be executed, the pressure gauge to be calibrated is required to be connected with the public joint on the instrument panel through the transition joint; if the system pressure value correction operation is needed to be executed, the high-precision pressure gauge after measurement and calibration is connected with a public joint on an instrument panel through a transition joint, a normal temperature pressure gauge verification item or a degree pressure gauge verification item is selected by a cursor on a main interface according to the detected requirement, a normal temperature pressure gauge verification program is entered after clicking selection, a pressure target value is correctly set, and then the normal temperature pressure gauge verification interface is entered after clicking determination.

2. According to the utility model, through the arrangement of the air inlet pipe, the air bottle, the air release pipe, the measuring air pipe, the density relay main body, the wiring cabinet and the six-core test wire, an operator uses the connected air path and the circuit of the accessory configured by the instrument, the air inlet pipe is connected with the measuring port of the instrument and the air bottle, the air release pipe is connected with the air outlet, the measuring port of the instrument is connected with the transition joint of the SF6 density relay main body to be detected by the measuring air pipe, the six-core test wire is connected with the corresponding test point on the wiring cabinet, one end of the equipped six-core test wire is connected with the aviation plug signal port on the instrument panel according to the test target, the end with the crocodile clip is respectively butted with the signal socket on the wiring cabinet of the density relay main body according to the test signal, the crocodile clip which is not used is not required to be in contact with other crocodile clips, only the corresponding test signal is required to be connected when one signal is tested, and 'single signal' is selected on the operation interface.

Drawings

FIG. 1 is a schematic diagram showing a cross-sectional front view of an SF6 gas density relay calibrator in accordance with the present utility model;

FIG. 2 is a schematic top sectional view of an SF6 gas density relay calibrator according to the present utility model;

FIG. 3 is an enlarged schematic view of the SF6 gas density relay calibrator shown in FIG. 2 at A;

fig. 4 is a schematic perspective view of an anti-collision arc pad of an SF6 gas density relay calibrator.

In the figure: 1. a calibrator body; 2. an air inlet pipe; 3. a gas cylinder; 4. a gas release pipe; 5. measuring the trachea; 6. a common joint; 7. a transition joint; 8. a density relay body; 9. a connection assembly; 901. a wiring cabinet; 902. a six-core test wire; 10. a protective shell; 11. an anti-collision arc pad; 12. a bottom plate; 13. wear-resistant protection pad.

Detailed Description

As shown in fig. 1, an SF6 gas density relay calibrator comprises a calibrator main body 1 and a common connector 6, wherein an air inlet pipe 2, an air release pipe 4 and a measuring air pipe 5 are sequentially arranged on the upper side of the front end of the calibrator main body 1 from left to right, a gas cylinder 3 is arranged at the left end of the air inlet pipe 2, the common connector 6 is arranged at the upper end of the measuring air pipe 5, a transition connector 7 is arranged at the upper end of the common connector 6, the common connector 6 is welded with the measuring air pipe 5, the common connector 6 is in clamping connection with the transition connector 7, after a gas path is connected through the air inlet pipe 2 and the air release pipe 4, an operator opens a valve on the gas cylinder 3, opens a power supply of the calibrator, and if a manometer calibration operation is required to be performed, the manometer to be calibrated is required to be connected with the common connector 6 on a faceplate of the calibrator through the transition connector 7; if the system pressure value correction operation is needed to be executed, the high-precision pressure gauge after measurement and calibration is connected with the public joint 6 on the instrument panel through the transition joint 7, the normal temperature pressure gauge verification item or the 20-degree pressure gauge verification item is selected by a cursor on the main interface according to the detected requirement, the normal temperature pressure gauge verification program is entered after clicking selection, the normal temperature pressure gauge verification interface is entered after the pressure target value is correctly set, the 20-degree pressure gauge verification operation flow is exactly the same as the normal temperature pressure gauge, only the difference is made on the interface, the device is convenient for quickly verifying the pressure gauge at 20 degrees and normal temperature, and the device is convenient for displaying the pressure at the measured environment temperature, the pressure at the environment temperature at 20 degrees and the environment temperature, thereby being beneficial to improving the automation degree of equipment.

As shown in fig. 1-4, the right end of the transition joint 7 is provided with a density relay main body 8, the lower end of the density relay main body 8 is provided with a connecting component 9, the connecting component 9 comprises a wiring cabinet 901 and a six-core test line 902, the left end of the wiring cabinet 901 is provided with the six-core test line 902, an operator uses a well-connected gas circuit and a circuit of an accessory configured by an instrument to connect an instrument measuring port of the air inlet pipe 2 with a gas cylinder 3, a gas discharge pipe 4 is connected with a gas outlet, the measuring port of the measuring gas pipe 5 is connected with the transition joint 7 of the SF6 density relay main body 8 to be detected, the six-core test line 902 is connected with a corresponding test point on the wiring cabinet 901, one end of the equipped six-core test line 902 is connected with an aerial insertion signal port on an instrument panel according to a test target, the end with a crocodile clip is respectively butted with a signal socket on the wiring cabinet 901 of the density relay main body 8 according to a test signal, the unused crocodile clamp is idle and is not in contact with other crocodile clamps, only corresponding test signals are needed to be connected when one signal is tested, a single signal is selected on an operation interface, the system can automatically identify, the device is convenient for automatically completing pressure measurement and 20 ℃ value conversion, thereby completing dynamic automatic compensation between pressure and temperature, avoiding complicated manual gas path adjustment operation, being provided with a plurality of types of transition joints 7, density relays of most types of switches can be used for on-site verification without disassembly, the rear end of the calibrator main body 1 is provided with a protective shell 10, the protective shell 10 is in clamping connection with the calibrator main body 1, four corners of the protective shell 10 are provided with anti-collision arc pads 11, the anti-collision arc pads 11 are bonded with the protective shell 10, the rear end of the protective shell 10 is provided with a bottom plate 12, the protective shell 10 and the bottom plate 12 are welded, the rear end of bottom plate 12 is provided with wear-resisting protection pad 13, and wear-resisting protection pad 13 is provided with four, operating personnel is arc protective housing 10 in the external connection four corners of check gauge main part 1, and with crashproof arc pad 11 and protective housing 10 are connected, then be connected with the bottom plate 12 of certain thickness with the rear end of protective housing 10, then wrap up wear-resisting protection pad 13 with the rear end four corners of bottom plate 12, place wear-resisting protection pad 13 on the desktop during the use, wear-resisting protection pad 13 contacts with the desktop, keep the stability of equipment, the device can protect equipment, be favorable to improving the wear-resisting placement performance of equipment, avoid taking place the equipment slip when using.

In summary, when the SF6 gas density relay calibrator is used, firstly, an operator connects a protective shell 10 with arc four corners outside a calibrator main body 1, connects an anti-collision arc pad 11 with the protective shell 10, then connects the rear end of the protective shell 10 with a bottom plate 12 with a certain thickness, wraps the four corners of the rear end of the bottom plate 12 with a wear-resistant protection pad 13, places the wear-resistant protection pad 13 on a tabletop when in use, contacts the wear-resistant protection pad 13 with the tabletop, keeps the stability of equipment, opens a valve on a gas cylinder 3 after a gas channel is connected through a gas inlet pipe 2 and a gas release pipe 4, opens a power supply of the calibrator, and if the calibration operation of the manometer is required to be executed, the manometer to be calibrated is required to be connected with a public joint 6 on the instrument panel through a transition joint 7; if the system pressure value correction operation is required to be executed, the high-precision pressure gauge after metering calibration is required to be connected with a public joint 6 on an instrument panel through a transition joint 7, a normal temperature pressure gauge verification item or a 20-degree pressure gauge verification item is selected by a cursor on a main interface according to the detected requirement, a normal temperature pressure gauge verification program is entered after clicking selection, a pressure target value is correctly set, a normal temperature pressure gauge verification interface is entered after clicking determination, the 20-degree pressure gauge verification operation flow is completely the same as that of the normal temperature pressure gauge, only the difference is made on the interface, an operator uses a connected gas path and a line of accessories configured by the instrument, an air inlet pipe 2 is connected with an instrument measuring port and a gas cylinder 3, a gas release pipe 4 is connected with a gas outlet, a measuring port of an instrument 5 is connected with a transition joint 7 of an SF6 density relay main body 8 to be detected, a six-core test line 902 is connected with a corresponding test point on a wiring cabinet 901, one end of the equipped six-core test line 902 is connected with a signal inserting port on the instrument panel according to a test target, the head of a pilot signal clamp is respectively connected with a signal socket on the wiring cabinet main body 8 according to the test signal, the pilot signal is not required to contact the signal, and the signal is not required to be contacted with the signal clamp 6 automatically, and the signal is required to be contacted with the signal clamp automatically, and the signal is not required to be detected by the signal clamp 6 when the signal is in the test interface is in a test mode.

Claims

1. The utility model provides a SF6 gas density relay check gauge, includes check gauge main part (1) and public joint (6), its characterized in that, front end upside of check gauge main part (1) has set gradually intake pipe (2), bleed pipe (4) and measurement trachea (5) from a left side to the right side, and the left end of intake pipe (2) is provided with gas cylinder (3), public joint (6) set up in the upper end of measurement trachea (5), and the upper end of public joint (6) is provided with transition joint (7).

2. The SF6 gas density relay calibrator according to claim 1, wherein the common connector (6) is welded to the measuring gas pipe (5), and the common connector (6) is in snap connection with the transition connector (7).

3. The SF6 gas density relay calibrator according to claim 1, wherein the right end of the transition joint (7) is provided with a density relay body (8), and the lower end of the density relay body (8) is provided with a connecting component (9).

4. A SF6 gas density relay calibrator according to claim 3, characterized in that the connection assembly (9) comprises a junction box (901) and a six-core test wire (902), and that the left end of the junction box (901) is provided with a six-core test wire (902).

5. The SF6 gas density relay calibrator according to claim 1, wherein a protective shell (10) is arranged at the rear end of the calibrator main body (1), and the protective shell (10) is in clamping connection with the calibrator main body (1).

6. The SF6 gas density relay calibrator according to claim 5, wherein anti-collision arc pads (11) are arranged at four corners of the protective shell (10), and the anti-collision arc pads (11) are bonded with the protective shell (10).

7. The SF6 gas density relay calibrator according to claim 5, wherein a bottom plate (12) is arranged at the rear end of the protective shell (10), and the protective shell (10) and the bottom plate (12) are welded.

8. The SF6 gas density relay calibrator according to claim 7, wherein the rear end of the base plate (12) is provided with wear-resistant protection pads (13), and the wear-resistant protection pads (13) are provided with four.