A GIS expansion joint multi-channel airtight test device

Abstract

The utility model discloses a GIS telescopic joint multichannel air tightness test device, including the bottom plate, the fixed end cover is connected with bottom plate, one side of fixed end cover is equipped with the GIS telescopic joint workpiece of waiting air tightness test through the bolt installation, the interface of being used for connecting the inflation hose is established to the other side of fixed end cover, the mobile end cover is located the top of bottom plate, and GIS telescopic joint workpiece is adapted with mobile end cover, one side of mobile end cover is equipped with the interface of being used for installing GIS telescopic joint channel air tightness pressure detection pressure gauge. The utility model discloses a GIS telescopic joint multichannel air tightness test device carries out air tightness detection to GIS telescopic joint, to guarantee that GIS telescopic joint can play the role of telescopic amount regulation compensation when using subsequently, and can realize simultaneously that multiple workpieces carry out air tightness test, thereby improve GIS telescopic joint air tightness detection efficiency, and then improve the practicality of GIS telescopic joint multichannel air tightness test device.

Description

Technical Field

[0001] This utility model relates to the field of GIS expansion joint technology, specifically a multi-channel airtightness testing device for GIS expansion joints. Background Technology

[0002] Currently, GIS equipment mainly consists of switches, current transformers, disconnect switches, pipeline busbars, outgoing bushings, expansion joints, and other equipment. Among them, the expansion joint of GIS equipment, as an auxiliary device of the pipeline busbar, is mainly used for length adjustment and compensation during the installation of GIS equipment and for compensation for the expansion and contraction of the pipeline busbar due to seasonal and ambient temperature changes after operation.

[0003] Since GIS expansion joints are key components for the self-adaptive adjustment of thermal expansion and contraction of GIS busbars, they have extremely high airtightness requirements. If they fail to compensate for the expansion and contraction during use, the GIS equipment may deform and leak air at the connection points due to expansion and contraction stress. In severe cases, this can lead to insulation breakdown of the GIS equipment. Therefore, it is necessary to conduct airtightness tests on GIS expansion joints. However, traditional GIS expansion joint airtightness testing methods can only test one workpiece at a time, resulting in low testing efficiency. Utility Model Content

[0004] To address the above problems, this utility model provides a simple, convenient, and reliable multi-channel airtightness testing device for GIS expansion joints.

[0005] The technical solution of this utility model is: a multi-channel airtightness testing device for GIS expansion joints, comprising: Base plate; A fixed end cap is connected to the base plate. The GIS expansion joint workpiece to be tested for air tightness is installed on one side of the fixed end cap by bolts. An interface for connecting an inflation hose is provided on the other side of the fixed end cap. A movable end cap is set above the base plate, and the GIS expansion joint workpiece is adapted to the movable end cap. One side of the movable end cap is provided with an interface for installing a pressure gauge for airtight pressure testing of the GIS expansion joint channel. The guide screw is used to connect the fixed end cover and the movable end cover, and the outer surface of the guide screw is threaded with an adjusting nut for adjusting the position of the movable end cover.

[0006] On the other side of the GIS expansion joint workpiece, a pressure block is installed by bolts, and a cavity for placing a sealing rubber ring is formed between the moving end cover and the pressure block. A groove for placing a sealing rubber ring is opened at the gas chamber on the moving end cover, and the pressure block can be installed and fixed by bolts, thereby forming a cavity for placing a sealing rubber ring, and thus achieving the fixation of the sealing rubber ring.

[0007] The base plate has mounting holes at all four corners for installing and fixing the GIS expansion joint multi-channel airtightness testing device. By passing bolts through the mounting holes and screwing them into the reserved holes at the installation position of the GIS expansion joint multi-channel airtightness testing device, the GIS expansion joint multi-channel airtightness testing device can be installed and fixed.

[0008] Two reinforcing blocks are connected to the upper surface of the base plate, and the reinforcing blocks are fixed to the fixed end cover. The reinforcing blocks connected to the base plate and the fixed end cover respectively can provide auxiliary support for the fixed end cover, thereby improving the overall structural strength of the GIS expansion joint multi-channel airtightness test device.

[0009] The upper surface of the base plate is connected to two guide rails, and the bottom surface of the movable end cover is connected to two sliders. The guide rails and sliders are slidably connected. By setting the guide rails and sliders, the movement of the movable end cover can be guided, so that the movable end cover can move stably in the horizontal direction.

[0010] The edges of the multi-channel airtightness testing device for GIS expansion joints are all blunted to prevent sharp points from injuring users, thereby improving the device's protective performance.

[0011] In operation, this utility model utilizes a multi-channel airtightness testing device for GIS expansion joints to test their airtightness, ensuring that the GIS expansion joints can play a role in adjusting and compensating for expansion and contraction during subsequent use. It can also perform airtightness tests on multiple workpieces simultaneously, thereby improving the efficiency of airtightness testing for GIS expansion joints and thus enhancing the practicality of the multi-channel airtightness testing device for GIS expansion joints.

[0012] By setting pressure blocks, the sealing rubber ring can be easily fixed, thus ensuring the sealing performance during the airtightness test of the GIS expansion joint. By setting mounting holes, the multi-channel airtightness testing device for the GIS expansion joint can be easily installed and fixed. By setting reinforcing blocks, the fixed end cover can be auxiliaryly supported, thereby improving the overall structural strength of the multi-channel airtightness testing device for the GIS expansion joint. By setting guide rails and sliders, the movement of the moving end cover can be guided, so that the moving end cover can move stably in the horizontal direction. Attached Figure Description

[0013] Figure 1 This is a front view of the three-dimensional structure of this utility model; Figure 2 This is a right-side view of the three-dimensional structure of this utility model; Figure 3 This is a left-side view of the three-dimensional structure of this utility model; Figure 4 This is a three-dimensional structural cross-sectional view of the present invention; Figure 5 This is a schematic diagram showing the connection between the GIS expansion joint workpiece and the movable end cap structure of this utility model; In the diagram: 1. Base plate; 2. Fixed end cap; 3. GIS expansion joint workpiece; 4. Moving end cap; 5. Guide screw; 6. Pressure block; 7. Mounting hole; 8. Reinforcing block; 9. Guide rail; 10. Slider. Detailed Implementation

[0014] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0015] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," "right," "vertical," "horizontal," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] like Figure 1-5 As shown, this utility model provides a multi-channel airtightness testing device for GIS expansion joints, including a base plate 1, a fixed end cover 2, a GIS expansion joint workpiece 3, a movable end cover 4, and a guide screw 5.

[0018] The upper surface of the base plate 1 is connected to a fixed end cap 2. The GIS expansion joint workpiece 3 to be tested for air tightness is installed on one side of the fixed end cap 2 by bolts. The other side of the fixed end cap 2 is provided with an interface for connecting an inflation hose.

[0019] The GIS expansion joint workpiece 3 can be installed on one side of the fixed end cover 2 using bolts, and the interface on the other side of the fixed end cover 2 can be used to easily connect with the inflation hose, so that the gas transmitted from the inflation hose can be delivered to the GIS expansion joint workpiece 3.

[0020] Two reinforcing blocks 8 are connected to the upper surface of the base plate 1, and the reinforcing blocks 8 are fixed to the fixed end cover 2. The reinforcing blocks 8, which are connected to the base plate 1 and the fixed end cover 2 respectively, can provide auxiliary support for the fixed end cover 2, thereby improving the overall structural strength of the GIS expansion joint multi-channel airtightness test device.

[0021] The base plate 1 has mounting holes 7 at each of its four corners for installing and fixing the GIS expansion joint multi-channel airtightness testing device. By passing the bolts through the mounting holes 7 and screwing them into the reserved holes at the installation position of the GIS expansion joint multi-channel airtightness testing device, the GIS expansion joint multi-channel airtightness testing device can be installed and fixed.

[0022] A movable end cover 4 and a guide screw 5 are provided on the top of the base plate 1. The GIS expansion joint workpiece 3 is adapted to the movable end cover 4. One side of the movable end cover 4 is provided with an interface for installing a pressure gauge for airtightness testing of the GIS expansion joint channel. The guide screw 5 is used to connect the fixed end cover 2 and the movable end cover 4. The outer surface of the guide screw 5 is threaded with an adjusting nut for adjusting the position of the movable end cover 4.

[0023] The mobile end cover 4 has an independent gas chamber, and the gas chamber has an interface for installing a pressure gauge to detect the air tightness pressure of the GIS expansion joint channel, so that the pressure gauge can be installed to detect the air pressure inside the gas chamber.

[0024] The movable end cover 4 can pass through the pre-drilled holes on both the fixed end cover 2 and the movable end cover 4. The position of the movable end cover 4 can be adjusted by rotating the adjusting nut, so that the GIS expansion joint workpiece 3 and the movable end cover 4 can be connected to form a sealed chamber.

[0025] On the other side of the GIS expansion joint workpiece 3, a pressure block 6 is bolted on, and a cavity for placing a sealing rubber ring is formed between the movable end cover 4 and the pressure block 6. (See [reference]). Figure 4 It can be seen that the gas chamber on the movable end cover 4 has a groove for placing the sealing rubber ring, and the pressure block 6 can be installed and fixed by bolts, thereby forming a chamber for placing the sealing rubber ring, and thus fixing the sealing rubber ring.

[0026] Two guide rails 9 are connected to the upper surface of the base plate 1, and two sliders 10 are connected to the bottom surface of the movable end cover 4. The guide rails 9 and sliders 10 are slidably connected. By setting the guide rails 9 and sliders 10, the movement of the movable end cover 4 can be guided, so that the movable end cover 4 can move stably in the horizontal direction, thereby improving the stability during the airtightness test of the GIS expansion joint.

[0027] The edges and corners of the GIS expansion joint multi-channel airtightness testing device are all blunted to prevent the sharp parts of the device from injuring users, thereby improving the device's protective performance.

[0028] When using the multi-channel airtightness testing device for GIS expansion joints, the sealing rubber ring can be placed in the groove opened in the gas chamber on the moving end cover 4. Then, the pressure block 6 is installed and fixed with bolts to fix the sealing rubber ring. Then, the GIS expansion joint workpiece 3 is installed and fixed with bolts. Then, the guide screw 5 passes through the reserved holes on the fixed end cover 2 and the moving end cover 4. Then, rotating the adjusting nut allows the GIS expansion joint workpiece 3 to gradually slide into the gas chamber on the moving end cover 4 and achieve sealing. At the same time, as the sealing rubber ring gradually slides into the gas chamber on the moving end cover 4, it can gradually be fitted onto the outer surface of the GIS expansion joint workpiece 3, thereby further improving the sealing performance when the GIS expansion joint workpiece 3 and the moving end cover 4 are connected. Then, the inflation hose is connected to the interface on the other side of the fixed end cover 2, and the gas is delivered to the GIS expansion joint workpiece 3 through the inflation hose. The pressure gauge installed on the gas chamber of the movable end cover 4 is used to detect the air pressure inside the chamber formed by the GIS expansion joint workpiece 3 and the movable end cover 4. At the same time, the air pressure data is recorded and compared at regular intervals to judge the airtightness performance of the GIS expansion joint.

[0029] Regarding the information disclosed in this case, the following points need to be clarified: (1) The accompanying drawings of the embodiments disclosed in this case only involve the structures involved in the embodiments disclosed in this case. Other structures can refer to the general design. (2) Where there is no conflict, the embodiments and features disclosed in this case can be combined with each other to obtain new embodiments; The above are merely specific embodiments disclosed in this case, but the scope of protection of this disclosure is not limited thereto. The scope of protection disclosed in this case shall be determined by the scope of protection of the claims.

Claims

1. A multi-channel airtightness testing device for GIS expansion joints, characterized in that: include: Base plate (1); The fixed end cap (2) is connected to the base plate (1). The GIS expansion joint workpiece (3) to be tested for air tightness is installed on one side of the fixed end cap (2) by bolts. The other side of the fixed end cap (2) is provided with an interface for connecting the air-filled hose. The movable end cap (4) is set above the base plate (1), and the GIS expansion joint workpiece (3) is adapted to the movable end cap (4). One side of the movable end cap (4) is provided with an interface for installing a pressure gauge for airtight pressure testing of the GIS expansion joint channel. The guide screw (5) is used to connect the fixed end cover (2) and the movable end cover (4), and the outer surface of the guide screw (5) is threaded with an adjusting nut for adjusting the position of the movable end cover (4).

2. The multi-channel airtightness testing device for GIS expansion joints according to claim 1, characterized in that: The other side of the GIS expansion joint workpiece (3) is bolted with a pressure block (6), and a cavity for placing a sealing rubber ring is formed between the movable end cover (4) and the pressure block (6).

3. The multi-channel airtightness testing device for GIS expansion joints according to claim 1, characterized in that: Mounting holes (7) are provided at all four corners of the base plate (1).

4. The multi-channel airtightness testing device for GIS expansion joints according to claim 1, characterized in that: The upper surface of the base plate (1) is connected to two reinforcing blocks (8), and the reinforcing blocks (8) are connected to the fixed end cap (2).

5. The multi-channel airtightness testing device for GIS expansion joints according to claim 1, characterized in that: The upper surface of the base plate (1) is connected to two guide rails (9), and the bottom surface of the movable end cover (4) is connected to two sliders (10), and the guide rails (9) and sliders (10) are slidably connected.

Images