CN218240320U

CN218240320U - Calibration device and high-temperature reactor switching station with same

Info

Publication number: CN218240320U
Application number: CN202221949760.3U
Authority: CN
Inventors: 邢艳平; 原玉; 林罗波; 朱兴文; 徐莹琳; 侯小龙; 李小龙; 徐西家
Original assignee: Huaneng Shandong Shidaobay Nuclear Power Co Ltd
Current assignee: Huaneng Shandong Shidaobay Nuclear Power Co Ltd
Priority date: 2022-07-26
Filing date: 2022-07-26
Publication date: 2023-01-06
Anticipated expiration: 2032-07-26

Abstract

The utility model provides a calibration device and a high temperature reactor switching station with the same, which are used for calibrating a relay of a gas insulated totally-enclosed combined electrical apparatus GIS of the high temperature reactor switching station, and the device comprises a selection switch, a test pipeline, a test gas cylinder, a tester and a test wire; the first end of the selector switch is used for being communicated with a GIS pipeline of the gas insulated totally-enclosed combined electrical apparatus, the second end of the selector switch is used for being communicated with a gas circulation interface of the relay, and the third end of the selector switch is communicated with the test gas cylinder through the test pipeline; the first end of the test wire is connected with the signal transmission interface of the relay, and the second end of the test wire is connected with the tester; wherein the selection switch is capable of selectively conducting the relay with one of the GIS and the test gas cylinder. The utility model discloses can realize not dismantling the relay and can carry out the check-up to it, guarantee equipment safety, improve on-the-spot check-up efficiency.

Description

Calibration device and high-temperature reactor switching station with same

Technical Field

The utility model belongs to the technical field of it is electric, concretely relates to calibration equipment and have its high temperature heap switch station.

Background

The high-temperature gas cooled reactor switching station uses a GIS gas insulated fully-closed combined electrical apparatus. GIS is a metal-enclosed switchgear that uses gas as an insulating medium in whole or in part, rather than air at atmospheric pressure. The high-voltage distribution device is a high-voltage distribution device which comprises a breaker, an isolating switch, an earthing switch, a mutual inductor, a lightning arrester, a bus, a connecting piece, an outgoing line terminal and the like, is totally called gas insulated station, all the devices or parts are enclosed in a metal grounded shell, and SF6 insulating gas with certain pressure is filled in the metal grounded shell, so that the high-voltage distribution device is also called an SF6 totally-enclosed combined electrical appliance and is widely applied to the high-voltage field.

Compared with a conventional open type switch station, the GIS has the advantages that 1, the SF6 gas with excellent insulating property is adopted as an insulating and arc extinguishing medium, so that the size of the switch station can be greatly reduced, and the miniaturization is realized; 2. because the charged part is completely sealed in the inert SF6 gas, the reliability is greatly improved, and the earthquake-resistant performance is excellent; 3. the charged part is sealed in the grounded metal shell, so that electric shock danger does not exist, and the SF6 gas is non-combustible gas, so that fire risk does not exist; 4. because the charged part is sealed by the metal shell, the electromagnetic and electrostatic shielding is realized, the noise is low, the radio interference resistance is strong, and the influence on nearby residents is small.

The tightness is the key of GIS insulation, and SF6 gas leakage can cause a fatal fault of the GIS. The tightness check is therefore performed throughout the use of the GIS. To ensure insulation performance, manufacturers have installed SF6 density relays on the housing, constantly monitoring the internal pressure, and requiring periodic inspection of the relays.

The prior art has at least the following problems:

the SF6 density relay is arranged on the GIS shell, needs to be dismounted for verification during detection, and is easy to cause poor sealing at the interface after being dismounted for many times, thereby causing SF6 gas leakage.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least, provide a calibration equipment and have its high temperature heap switch station.

An aspect of the utility model provides a calibration equipment. A relay for verifying gas insulated totally enclosed switchgear GIS of high temperature reactor switching station, verifying attachment includes: the device comprises a selection switch, a test pipeline, a test gas cylinder, a tester and a test wire; the first end of the selector switch is used for being communicated with a GIS pipeline of the gas insulated totally-enclosed combined electrical apparatus, the second end of the selector switch is used for being communicated with a gas circulation interface of the relay, and the third end of the selector switch is communicated with the test gas cylinder through the test pipeline; the first end of the test wire is connected with the signal transmission interface of the relay, and the second end of the test wire is connected with the tester; wherein the selection switch is capable of selectively conducting the relay with one of the GIS and the test gas cylinder.

Optionally, the selection switch adopts a three-way valve.

Optionally, when the GIS normal operation signal is received, the selection switch connects the relay with the GIS.

Optionally, when a verification signal is received, the selection switch connects the relay with the test gas cylinder.

Optionally, the apparatus further comprises: and the stop valve is arranged on the test pipeline.

Optionally, when the verification signal is received, the cut-off valve is opened. Another aspect of the utility model provides a high temperature reactor switch station. The high temperature reactor switchyard includes: the checking device, the gas insulated totally-enclosed combined electrical apparatus GIS and the relay are described above; the selection switch is respectively communicated with the GIS pipeline, a gas circulation interface of the relay and the test gas cylinder; and the signal transmission interface of the relay is connected with the tester through the test wire.

The utility model discloses among the calibration equipment, through the selector switch under the prerequisite of not dismantling the relay, accomplish the check-up work to the relay, the utility model discloses a calibration equipment simple structure, the practicality is strong, can guarantee equipment safety, has greatly improved on-the-spot check-up efficiency.

Drawings

Fig. 1 is a schematic structural diagram of the calibration apparatus of the present invention.

In the figure:

100. a selector switch; 200. testing the pipeline; 300. testing the gas cylinder; 400. a tester; 500. a test line; 600. a GIS; 700. a relay.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, a calibration apparatus for calibrating a relay 700 of a gas insulated switchgear GIS600 of a high temperature stack switching station, includes: the test device comprises a selection switch 100, a test pipeline 200, a test gas cylinder 300, a tester 400 and a test line 500; the first end of the selector switch 100 is communicated with a gas insulated totally-enclosed combined electrical apparatus GIS600 pipeline, the second end of the selector switch 100 is communicated with a gas circulation interface of the relay 700, and the third end of the selector switch 100 is communicated with the test gas cylinder 300 through the test pipeline 200; a first end of the test wire 500 is connected with the signal transmission interface of the relay 700, and a second end of the test wire 500 is connected with the tester 400; wherein the selection switch 100 is capable of selectively conducting the relay 700 with one of the GIS600 and the test gas cylinder 300.

Specifically, the utility model discloses a calibration equipment passes through selector switch 100 can with relay 700 selectively with GIS600 with one among the experimental gas cylinder 300 switches on, realizes relay 700 monitoring GIS600 internal pressure and on-the-spot check-up relay 700's arbitrary switching, during the calibration equipment was applied to relay 700's of high temperature gas cooled reactor switching station, through on-the-spot check-up test many times, the proof the utility model discloses a calibration equipment has good practicality, and the check-up process guarantees equipment safety, very big improvement on-the-spot check-up work efficiency moreover.

It should be noted that, because the GIS is filled with SF6 insulating gas under a certain pressure, the sealing performance is critical for the GIS insulation, and SF6 gas leakage may cause a fatal failure of the GIS. In order to ensure the insulation performance, the GIS shell of the gas insulated totally-enclosed combined electrical appliance is provided with a relay, the relay constantly monitors the pressure inside the GIS and regularly checks the relay to ensure the normal work of the relay. Generally, when the relay is detected, the relay needs to be detached for verification, multiple times of detachment easily causes the poor sealing of the interface of the relay, and SF6 gas leakage is caused, by adopting the verification device in the embodiment, the relay is selectively conducted with one of the GIS and the test gas cylinder through the selection switch, the verification work of the relay can be completed on the premise of not detaching the relay, the detachment of the relay is avoided, the equipment safety is ensured, and the field verification work efficiency is improved; the checking device of the embodiment has the advantages of simple structure, convenience in assembly, simple and easy operation of the checking method and wide applicability.

Illustratively, as shown in fig. 1, the selector switch 100 is a three-way valve.

In this embodiment, a three-way valve is selected as the selection switch 100, and the three-way valve has a simple structure, is convenient to operate, and has low cost.

For example, when the GIS600 normal operation signal is received, the selection switch 100 conducts the relay 700 and the GIS 600.

Illustratively, upon receiving a verification signal, the selection switch 100 conducts the relay 700 with the test gas cylinder 300.

Specifically, the selection switch 100 connects the relay 700 to the GIS600, and the relay 700 can monitor the internal pressure of the GIS600 in real time; when a verification signal is received, the connection channel between the relay 700 and the GIS600 is closed, the selection switch 100 conducts the relay 700 and the test gas cylinder 300, the relay 700 is inflated through the test gas cylinder 300, and the relay 700 is verified through the special tester 400.

In this embodiment, the selection switch switches on the relay and the GIS or the relay and the test gas cylinder, and the operation is convenient.

Illustratively, as shown in fig. 1, the apparatus further includes: a shut-off valve disposed in the test line 200.

Illustratively, the shutoff valve is opened upon receipt of a verification signal.

Specifically, the gas filling process of the test gas cylinder 300 can be controlled by the stop valve, and the flow rate of the gas filling process of the test gas cylinder 300 can also be adjusted by the stop valve. The stop valve is simple and convenient to operate.

Illustratively, another aspect of the present invention provides a high temperature stack switchyard, comprising: the checking device, the gas insulated totally-enclosed combined electrical apparatus GIS600 and the relay 700 are arranged as described above; the selection switch 100 is respectively communicated with the GIS600 pipeline, a gas circulation interface of the relay 700 and the test gas cylinder 300; the signal transmission interface of the relay 700 is connected to the tester 400 through the test line 500.

Specifically, the relay 700 may be an SF6 density relay 700, the test gas cylinder 300 is filled with SF6 gas, and the tester 400 is a test device specially used for testing the SF6 density relay 700. The high temperature reactor switching station in this embodiment the relay with set up the select switch between the GIS, not dismantling under the prerequisite of relay, it is right to realize the check-up of relay, guarantee the safety of switching station, greatly improved the work efficiency of on-the-spot check-up.

It is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and scope of the invention, and such modifications and improvements are also considered to be within the scope of the invention.

Claims

1. The utility model provides a calibration equipment for the relay of the totally closed combined electrical apparatus GIS of gas insulation of check-up high temperature reactor switchyard, its characterized in that, calibration equipment includes: the device comprises a selection switch, a test pipeline, a test gas cylinder, a tester and a test wire;

the first end of the selector switch is used for being communicated with a GIS pipeline of the gas insulated totally-enclosed combined electrical apparatus, the second end of the selector switch is used for being communicated with a gas circulation interface of the relay, and the third end of the selector switch is communicated with the test gas cylinder through the test pipeline; the first end of the test wire is connected with the signal transmission interface of the relay, and the second end of the test wire is connected with the tester; wherein the content of the first and second substances,

the selection switch is capable of selectively conducting the relay with one of the GIS and the test gas cylinder.

2. The device of claim 1, wherein the selector switch is a three-way valve.

3. The device of claim 1, wherein the selection switch conducts the relay with the GIS upon receiving the GIS normal operation signal.

4. The apparatus of claim 3, wherein the selector switch conducts the relay with the test cylinder upon receipt of a verification signal.

5. The apparatus of any one of claims 1 to 4, further comprising: and the stop valve is arranged on the test pipeline.

6. The apparatus of claim 5, wherein the shut-off valve is opened upon receipt of a verification signal.

7. A high temperature stack switchyard, characterized in that the high temperature stack switchyard comprises: the checking device, the gas insulated fully enclosed switchgear GIS and the relay according to any one of claims 1 to 6;

the selection switch is respectively communicated with the GIS pipeline, a gas circulation interface of the relay and the test gas cylinder;

and the signal transmission interface of the relay is connected with the tester through the test wire.