Switch temperature rise test tool equipment suitable for under pressure condition

Abstract

The utility model provides a switch temperature rise test tool device suitable for a pressure condition, which comprises a main wire inlet unit, the side part of the main wire inlet unit is connected with a switching box through a connecting pipe, the side wall of the switching box is provided with a plurality of branch wire inlet units, and the main wire inlet unit, the connecting pipe, the switching box and the branch wire inlet units form a sealed communication structure; the main incoming line unit, the connecting pipe, the switching box and the branch incoming line units form a sealed communication structure, so that the overall structural design is simple, the explosion-proof valve of the cabinet body can be directly utilized for installation, no additional hole is needed, the installation is convenient, the sealing performance of the product is ensured, the cost is saved, the design of the plurality of branch incoming line units supports the measurement of various products, and the measurement accuracy is improved. And the compatibility of the product is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to high -voltage switchgear measurement, sealing and pressure -resisting structure design field, in particular to a kind of switch temperature rise test tooling equipment suitable for under pressure condition. BACKGROUND

[0002] Switch cabinet as the key equipment in power system, long-term operation due to current load, contact resistance and other factors will produce temperature rise, possibly leading to insulation aging, material deformation, serious time will lead to equipment failure and then cause a series of safety accidents.Under pressure condition, temperature rise characteristics can be different due to pressure change, traditional test method is difficult to simulate pressure environment, mainly have following problems:

[0003] 1, existing temperature rise measurement tooling mostly does not support sealed state measurement, but under normal pressure, cannot restore the heat dissipation condition of closed area in inflatable cabinet, leading to temperature rise data and actual operation condition do not match;

[0004] 2, existing temperature rise measurement tooling temperature measuring point is less, coverage is insufficient;

[0005] 3, existing temperature rise measurement tooling design is complex, installation and disassembly are time-consuming and laborious;

[0006] 4, existing temperature rise measurement tooling needs additional hole when measuring in sealed state, not only increase cost but also have the problem of insufficient pressure resistance ；

[0007] 5, original temperature rise tooling cost is too high, the tooling of same point is tens of thousands of yuan.

[0008] Therefore, there is an urgent need for a switch temperature rise test tooling equipment suitable for under pressure condition, which can solve the above problems. UTILITY MODEL CONTENT

[0009] The utility model aims at providing a switch temperature rise test tooling equipment suitable for under pressure condition to solve the problems existing in the prior art.

[0010] To achieve the above object, the utility model provides the following scheme:

[0011] The utility model provides a switch temperature rise test tooling equipment suitable for under pressure condition, including main incoming line unit, the side of main incoming line unit is connected with the connection of adapter box, the side wall of adapter box is equipped with a plurality of branch incoming line units, main incoming line unit, connection pipe, adapter box and branch incoming line unit form sealed communication structure.

[0012] Preferably, main incoming line unit and branch incoming line unit are equipped with mounting hole.

[0013] Preferably, the main incoming line unit is provided with an annular groove on the outer side, and a sealing ring is arranged in the annular groove.

[0014] Preferably, the connecting pipe is made of 304 stainless steel pipe.

[0015] Preferably, the branch incoming line unit is provided with two.

[0016] Preferably, the branch incoming line unit is provided with an annular groove on the side connected with the adapter box, and a sealing ring is arranged in the annular groove.

[0017] The utility model discloses relative to prior art has obtained following beneficial technical effect:

[0018] The utility model provides a kind of switch temperature rise test tooling equipment suitable for under pressure condition, including main incoming line unit, the side of main incoming line unit is connected with the adapter box by connecting pipe, the side wall of adapter box is equipped with multiple branch incoming line units, and main incoming line unit, connecting pipe, adapter box and branch incoming line unit form sealed communication structure;By main incoming line unit, connecting pipe, adapter box and branch incoming line unit form sealed communication structure, overall structure design is simple, can directly utilize the explosion-proof valve installation of cabinet body itself, need not extra hole, installation is convenient, not only guarantee the sealing property of product, also save cost, the design of multiple branch incoming line units supports the measurement of multiple products, enhances the compatibility of product. DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiments, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0020] Figure 1 The utility model provides the structure schematic drawing of switch temperature rise test tooling equipment suitable for under pressure condition;

[0021] In the drawing: 1, main incoming line unit;2, connecting pipe;3, adapter box;4, branch incoming line unit. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the utility model.

[0023] The purpose of this invention is to provide a switch temperature rise testing fixture suitable for pressure conditions, in order to solve the problems existing in the prior art.

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Example 1:

[0026] This embodiment provides a fixture for testing the temperature rise of switches under pressure conditions, such as... Figure 1 As shown, it includes a main incoming line unit 1. The side of the main incoming line unit 1 is connected to the adapter box 3 through a connecting pipe 2. The side wall of the adapter box 3 is provided with multiple branch incoming line units 4. The main incoming line unit 1, the connecting pipe 2, the adapter box 3 and the branch incoming line units 4 form a sealed and connected structure, thereby simulating the thermal convection conditions of the confined space inside the ring main unit and improving the realism of the test.

[0027] In one implementation, both the main incoming line unit 1 and the branch incoming line unit 4 have flange-like structures with mounting holes evenly distributed around them, which facilitates connection and installation.

[0028] As one implementation method, the main incoming line unit 1 is provided with an annular groove on the outside and a sealing ring is provided in the annular groove. During installation, the main incoming line unit 1 can be directly embedded into the explosion-proof valve hole of the ring main unit without additional drilling, maintaining the original sealing of the cabinet, realizing the quick installation and disassembly of the tooling, and improving testing efficiency. By setting the annular groove and sealing ring, the sealing between the main incoming line unit 1 and the cabinet can be guaranteed.

[0029] As one implementation method, the connecting pipe 2 is made of 304 stainless steel. Using 304 stainless steel pipe is more reliable than ordinary metal pipe or plastic pipe, and it is not easy to deform or rust.

[0030] As one implementation method, there are two branch line entry units 4, which can be equipped with 60 temperature measuring thermocouples to cover more points in the cabinet. Of course, in actual use, multiple branch line entry units, such as three or four, can be used to adapt to different usage needs.

[0031] As one implementation method, the side where the sub-inlet unit 4 connects to the adapter box 3 is provided with an annular groove, and a sealing ring is provided in the annular groove, also for the purpose of improving sealing.

[0032] This utility model provides a switch temperature rise testing fixture suitable for pressure conditions, which can be widely used in the design of pressurized power equipment such as gas-insulated ring main units and GIS switches; it can be used for temperature rise testing of pressurized power equipment before it leaves the factory to ensure compliance with national standards; it can also be used in periodic inspections after the equipment is put into operation to assess the temperature rise changes after long-term operation and prevent overheating failures.

[0033] The principles and implementation modes of the present application are described by using specific examples, and the above examples are only used to help understand the method and core idea of the present application; meanwhile, for those skilled in the art, the specific implementation modes and application ranges will be changed according to the idea of the present application. In conclusion, the content of the specification should not be understood as a limitation of the present application.

Claims

1. A switch temperature rise test tooling device suitable for use under pressure conditions, characterized by: The utility model relates to a main incoming line unit, the side of main incoming line unit is connected with the connection pipe of adapter box, the sidewall of adapter box is equipped with a plurality of branch incoming line units, main incoming line unit, connection pipe, adapter box and branch incoming line unit form sealed communication structure.

2. The switch temperature rise test tooling apparatus suitable for use under pressure conditions of claim 1, wherein: The main incoming line unit and the branch incoming line unit are both provided with mounting holes.

3. The switch temperature rise test tooling apparatus for use under pressure conditions of claim 1, wherein: The outer side of the main incoming line unit is provided with an annular groove, and a sealing ring is arranged in the annular groove.

4. The switch temperature rise test tooling apparatus for use under pressure conditions of claim 1, wherein: The connection pipe is made of 304 stainless steel pipe.

5. The switch temperature rise test tooling apparatus for use under pressure conditions of claim 1, wherein: The branch incoming line unit is provided with two.

6. The switch temperature rise test tooling apparatus for use under pressure conditions of claim 1, wherein: The side surface of the branch incoming line unit connected with the adapter box is provided with an annular groove, and a sealing ring is arranged in the annular groove.

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