CN213542070U

CN213542070U - Inflation valve cock for sulfur hexafluoride switchgear

Info

Publication number: CN213542070U
Application number: CN202022573362.3U
Authority: CN
Inventors: 徐毅; 资永新; 杨希江
Original assignee: YUNNAN YUNKAI ELECTRIC CO Ltd
Current assignee: YUNNAN YUNKAI ELECTRIC CO Ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-06-25
Anticipated expiration: 2030-11-10

Abstract

The utility model discloses an inflation valve cock for sulfur hexafluoride switchgear, set up four exhaust holes on the inflation valve cock, inflation valve cock lower extreme is big cylinder, and the upper end is the hexagonal body, big cylindrical central point puts and sets up a little cylinder, and big cylindrical surface sets up the screw thread, and little cylinder is connected with the inflation valve case. Before the pipe orifice of the inflating device is not connected with the inflating interface of the sulfur hexafluoride switch equipment, the valve of the gas cylinder is opened, the pressure reducer is opened, the pressure of the low-pressure side is 0.03-0.05 MPa, then the valve core of the inflating self-sealing valve on the inflating device is jacked open by the cock, and the gas is discharged for 10-15 seconds, so that most of moisture and fine impurities in the inflating pipe of the inflating device can be taken away. The utility model discloses convenient to use can bleed fast and be favorable to protecting the case.

Description

Inflation valve cock for sulfur hexafluoride switchgear

Technical Field

The utility model relates to a switchgear technical field is a gas charging valve cock for sulfur hexafluoride switchgear particularly.

Background

At present, sulfur hexafluoride gas-filled switchgear is widely applied to power transmission and transformation networks. Before the switch equipment is used, sulfur hexafluoride gas needs to be filled, and fine impurities and moisture are prone to remaining in the pipe of the inflation device, therefore, before the pipe orifice of the inflation device is not connected with the inflation interface of the sulfur hexafluoride switch equipment, the valve of the gas cylinder needs to be opened firstly, and the gas cylinder is deflated for 10-15 seconds, so that most of moisture and fine impurities in the inflation pipe of the inflation device are flushed away, and the moisture and the impurities in the gas filled into the switch equipment are guaranteed not to exceed the standard. However, in the installation site of the switch equipment, no special flushing device is used for jacking the valve core of the inflatable self-sealing valve, and site workers randomly adopt a sharp tool to jack the valve core to damage the sealing surface of the valve core, so that the air leakage caused by poor sealing is caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an inflation valve cock for sulfur hexafluoride switchgear to the not enough that exists among the above-mentioned prior art.

The technical scheme of the utility model is that:

the sulfur hexafluoride switch equipment inflation valve cock is characterized in that four exhaust holes are formed in the inflation valve cock, the lower end of the inflation valve cock is a large cylinder, the upper end of the inflation valve cock is a hexagonal body, a small cylinder is arranged at the center of the large cylinder, threads are arranged on the surface of the large cylinder, and the small cylinder is connected with a valve core of the inflation valve.

Further, the material of the cock of the inflation valve is brass.

The principle of the utility model is that, before the aerating device mouth of pipe not aerify interface connection with sulfur hexafluoride switchgear, must open the gas cylinder valve earlier, open the pressure reducer again, make low pressure lateral pressure be 0.03~0.05MPa, then with the cock aerify on with aerating device from sealing valve case and back open, gassing 10~15 seconds, handle like this and can take away most moisture and fine debris in the aerating device gas tube.

The utility model has the main advantages that: convenient to use, can deflate fast and be favorable to protecting the case.

Drawings

In order to more clearly illustrate the embodiment of the bearing type vertical seismic isolation gap device or the technical scheme in the prior art, the drawings needed to be used in the description of the embodiment or the prior art are briefly introduced below, the drawings in the following description are only some embodiments of the invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative work.

Fig. 1 is a schematic view of the installation of the utility model in daily position.

Fig. 2 is the installation schematic diagram of the working position of the present invention.

Fig. 3 is a schematic front structural view of the present invention.

Fig. 4 is a schematic top view of the present invention.

In the figure: 1-an inflation valve cock, 2-an inflation valve core, 3-an inflation valve, 4-an air pipe, 5-a large cylinder, 6-a small cylinder, 7-a hexagonal body and 8-an exhaust hole.

Detailed Description

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

Unless otherwise defined, technical or scientific terms used in the embodiments of the present application should have the ordinary meaning as understood by those having ordinary skill in the art. The use of "first," "second," and similar terms in the present embodiments does not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. "Upper," "lower," "left," "right," "lateral," "vertical," and the like are used solely in relation to the orientation of the components in the figures, and these directional terms are relative terms that are used for descriptive and clarity purposes and that can vary accordingly depending on the orientation in which the components in the figures are placed.

Referring to fig. 3-4, the embodiment of the utility model provides a sulfur hexafluoride switchgear is with inflation valve cock sets up four exhaust holes 8 on the

inflation valve cock

1, 1 lower extreme of inflation valve cock is big cylinder 5, and the upper end is hexagonal body 7, the central point of big cylinder 5 puts and sets up a

little cylinder

6, and 5 surfaces of big cylinder set up the screw thread, and little cylinder 6 is connected with inflation valve case 2.

The material of the charging valve cock 1 is brass.

As shown in fig. 1-2, the specific working process of the embodiment of the present invention is: at first before 4 mouths of tubes of aerating device trachea do not aerify the interface connection with sulfur hexafluoride switchgear, open 3 gas cylinder valves of inflation valve, open the pressure reducer again, make low pressure side pressure be 0.03~0.05MPa, then use the utility model discloses a 1 dextrorotation of inflation valve cock backs up 2 of the last inflation valve case of aerating device, and gassing 10~15 seconds. Most of moisture and fine impurities in the inflation air pipe 4 of the inflation device can be taken away through the treatment, when the deflation is finished, the left-handed inflation valve cock 1 enables the valve core 2 of the inflation valve to return, but the inflation valve cock 1 is still arranged on the valve core 2 of the inflation valve.

The above description is only exemplary of the present invention and should not be taken as limiting the invention, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A sulfur hexafluoride switch equipment inflation valve cock is characterized in that: the four exhaust holes are formed in the inflation valve cock, the lower end of the inflation valve cock is a large cylinder, the upper end of the inflation valve cock is a hexagonal body, a small cylinder is arranged at the center of the large cylinder, threads are arranged on the surface of the large cylinder, and the small cylinder is connected with a valve core of the inflation valve.

2. A sulfur hexafluoride switchgear inflation valve cock as claimed in claim 1, wherein: the material of the cock of the inflation valve is brass.