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Spring absorber and vibration-resistant sulfur hexafluoride gas density relay

A technology of sulfur hexafluoride gas and spring shock absorbers, which is applied in the field of spring shock absorbers, can solve the problems that spring shock absorbers cannot be applied, affect the safe operation of the power grid, and cannot guarantee the reliable and safe operation of sulfur hexafluoride electrical products.

Inactive Publication Date: 2016-06-29
SHANGHAI ROYE ELECTRICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The arc extinguishing medium and insulating medium of sulfur hexafluoride electrical products are sulfur hexafluoride gas, and air leakage cannot occur. If there is air leakage, the reliable and safe operation of sulfur hexafluoride electrical products cannot be guaranteed.
However, the density relay is basically used outdoors, and the rubber of the rubber shock absorber will age under the action or influence of oxidation, ozone, ultraviolet rays, high temperature, light, mechanical stress, moisture, etc., and there will be cracks on the surface of the rubber. The density relay is damaged due to cracks and cannot be used at all
Or the rubber is hardened, and the rubber shock absorber cannot achieve the vibration reduction effect
In addition, the two inserts of the rubber shock absorber are bonded together with the rubber with an adhesive. During the vulcanization process, due to the high process requirements, if the adhesive is not applied evenly or is polluted, the bond will not be firm. , the inserts will fall off during use, and the density relay will be damaged, so it cannot be used at all, which seriously affects the safe operation of the power grid
[0005] In the prior art, ordinary spring dampers cannot be applied to gas density relays, and how to design and manufacture spring dampers suitable for use in gas density relays is in front of people, so innovation is needed to develop a A spring shock absorber suitable for use on a gas density relay, or a gas density relay with a spring shock absorber has been developed to improve its anti-vibration performance, that is, a gas density relay with good anti-vibration performance

Method used

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  • Spring absorber and vibration-resistant sulfur hexafluoride gas density relay
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  • Spring absorber and vibration-resistant sulfur hexafluoride gas density relay

Examples

Experimental program
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Effect test

Embodiment 1

[0065] See Figure 1 to Figure 3 And combine Figure 4 , The present invention, namely the anti-vibration type sulfur hexafluoride gas density relay, includes a relay case 1, a joint 2, and the relay case 1 includes a signal generator 3, a movement 4, a pressure sensing element 5, a temperature compensation element 6, The fixed plate 7 corresponds to the adjusting rod 8, the connecting rod 9, the beam 10, and the pipe 11 of the signal generator 3. There are also a dial 12, a pointer 13, and a printed board 18 in the housing 1. The pointer 13 is fixed on the movement 4 , The dial 12 is fixed on the movement 4, one end of the pressure-sensitive element 5 is welded to the base 20 communicating with the joint 2 in the gas path, and the other end is welded to the end seat 21, and the end seat 21 is connected to the temperature compensation element 6 In this embodiment, the signal generator 3 is a micro switch, or a magnetic-assisted electrical contact, and the photosensitive element...

Embodiment 2

[0078] Such as Figure 5 Shown and combined Image 6 , An anti-vibration type sulfur hexafluoride gas density relay of the present invention, the outer shape joint is a radial structure. Since the joint 2 is fixed on the chassis 15, the closest effective distance between the lower side of the chassis 15 and the lower side of the shell is represented by H, and H is greater than 2.3mm. When the joint 2 vibrates, the vibration is transmitted through the spring damper 17. To the shell 1, at this time, when the vibration is caused by the outside, the vibration affected by the joint 2 is first transmitted to the chassis 15, and the chassis 15 is transmitted to the spring shock absorber 17, and the spring shock absorber 17 undergoes buffering and vibration absorption, and then greatly It alleviates the vibration that affects the shell. In this way, the shock absorber greatly alleviates the vibration that affects the shell. At the same time, since the closest effective distance between ...

Embodiment 3

[0080] Such as Figure 7 As shown, the spring damper of an anti-vibration type sulfur hexafluoride gas density relay of the present invention includes two fixing seats 171, 172 and a spring 173, and the fixing seats 171, 172 are There is a groove, the groove is a thread shape, and the groove on the fixing seat is a T-shaped thread. One end of the spring 173 is installed in the groove 177 of one fixing seat 171, and the other end of the spring 173 is installed in the groove 177 of the other fixing seat 172. The two fixing seats have a proper gap to allow the spring to compress or extend.

[0081] The fixing base 171 includes a fixing base body 1711 and a limiting portion 1712. The fixing base body 1711 is cylindrical, and the groove 177 is provided on the outside of the fixing base body 1711. The limiting portion 1712 is the One end of the fixing base body 1711 extends outward. The fixing seat 172 includes a fixing seat body 1721 and a limiting portion 1722. The fixing seat body ...

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Abstract

The invention relates to a vibration-resistant sulfur hexafluoride gas density relay. A relay body comprises a shell and a conduit; the relay further comprises a base plate and a spring absorber; the spring absorber is arranged between the base plate and the shell; a connector is fixed on the base plate; one end of the conduit is in airtight connection with the connector and the other end is in airtight connection inside the shell. The vibration-resistant sulfur hexafluoride gas density relay has the advantage of vibration resistance, is free from filling of silicone oil, and therefore completely overcomes the problem of oil leakage and can be applied to sulfur hexafluoride electric equipment very well; in addition, the relay is capable of timely sending out an alarm signal and a locking signal in case of gas leakage, thereby playing a role in guaranteeing power safety.

Description

Technical field [0001] The invention relates to a gas density relay and a vibration damping device thereof, in particular to an anti-vibration type sulfur hexafluoride gas density relay and a spring shock absorber used in the anti-vibration type sulfur hexafluoride gas density relay. Background technique [0002] Sulfur hexafluoride electrical products have been widely used in the power sector, industrial and mining enterprises, and promote the rapid development of the power industry. Ensuring the reliable and safe operation of SF6 electrical products has become one of the important tasks of the power sector. The arc extinguishing medium and insulating medium of SF6 electrical products are sulfur hexafluoride gas, and gas leakage cannot occur. If gas leakage occurs, the reliable and safe operation of sulfur hexafluoride electrical products cannot be guaranteed. Therefore, it is very necessary to monitor the density of sulfur hexafluoride electrical products. [0003] The current ...

Claims

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Application Information

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IPC IPC(8): H01H35/26H01H1/50
CPCH01H35/26H01H1/50
Inventor 金海勇郝彩侠王恩林贺兵朱月明
Owner SHANGHAI ROYE ELECTRICAL CO LTD
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