Pressure air chamber for ultrahigh-pressure direct-current particle experiment

Abstract

The invention relates to the technical field of photon measurement and observation, in particular to a pressure air chamber for an ultrahigh-pressure direct-current particle experiment, which comprises a pressure air chamber body. According to the pressure air chamber for the ultrahigh-pressure direct-current particle experiment, the internal isolation bin on the inner bottom face of the pressure air chamber body is matched with the electric control type overturning control module, an opening in the upper end of the internal isolation bin can be closed from the inner side and the outer side, and the GIL unit can be isolated from the interior of a high-pressure cavity when replaced; internal pressure relief is avoided, so that energy waste caused by repeated pressurization due to pressure loss is reduced; the electric control type bottom separation cover shell is movably assembled at the opening position of the lower end of the internal isolation bin, pressure in the internal isolation bin can be removed in advance under the condition that a bottom discharging opening is opened, and therefore the safety of the electric control type bottom separation cover shell during disassembly is improved.

Description

Technical Field

[0001] The invention relates to the technical field of photon measurement and observation, in particular to a pressure gas chamber for ultra-high voltage direct current particle experiments. Background Art

[0002] DC gas-insulated power transmission is suitable for high voltage and large capacity occasions. However, due to land restrictions, environmental constraints and future DC development planning, the world urgently needs a new power transmission mode of DC GIS / GIL, and DC GIS / GIL technology has good application prospects. However, the core technology of DC transmission has long been monopolized by foreign companies, and my country's research and development of DC GIS / GIL is still in the exploratory stage. Therefore, my country urgently needs to carry out technical research on DC GIS / GIL.

[0003] At present, based on the DC GIS / GIL application scenario, the charge interaction process of the collision process is analyzed to explore the charging mechanism of moving particles, so as to obtain the charging law of particles at different times and positions during the movement process; the dynamic random behavior of particles is studied, and the dynamic model of different motion modes of particles is established; the full spectrum photon counting technology is used to measure the ionization-microdischarge phenomenon caused by the movement of metal particles; the intrinsic relationship between particle movement and insulator charge accumulation is explored, and the mechanism of the influence of particle behavior on insulation failure is analyzed. The research on particle suppression technology requires the use of a photon measurement system, and the GIL model unit needs to be placed and observed through a pressure chamber. However, the current pressure chamber will cause the internal air pressure to drop rapidly when the GIL model unit is disassembled and replaced after each observation. Each experiment needs to be re-pressurized, which greatly increases the experimental cost and is inconvenient to operate. Summary of the invention

[0004] The technical problem to be solved by the present invention is that the pressure chamber currently used for photon measurement needs to be re-pressurized after the GIL model unit is disassembled and replaced, which greatly increases the experimental cost and is also inconvenient to operate.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a pressure air chamber for ultra-high voltage direct current particle experiments, including a pressure air chamber body, a high-voltage bushing with a high-voltage input power supply installed inside is fixedly installed on the upper surface of the pressure air chamber body, a lateral boosting bushing for an external boosting pump and a lateral observation connecting pipe for an external photon device fixing fixture box are fixedly installed on the side wall of the pressure air chamber body, an internal isolation chamber protruding upward is provided on the inner bottom surface of the pressure air chamber body, an electrically controlled flip control module for installing a GIL unit is movably installed at the upper opening position of the internal isolation chamber, and an electrically controlled bottom separation cover is movably installed on the lower surface of the pressure air chamber body at the lower opening position of the internal isolation chamber.

[0006] The inner side surface of the inner isolation chamber is provided with an inner mounting seat recessed outwards.

[0007] The electrically controlled turnover control module comprises an external closed cover plate, an internal closed cover plate, an arc-shaped fixed bracket, an angle adjustment support rod, a surface lifting guide rail and a GIL unit fixing fixture.

[0008] The inner side surface of the internal isolation chamber has an inwardly bent internal sealing shrinking frame at the upper and lower opening positions, and the internal closed cover plate is movably assembled with the lower surface of the internal sealing shrinking frame at the upper opening through a lateral bracket.

[0009] The outer closed cover plate is fixedly connected to the inner closed cover plate by an arc-shaped fixed bracket, the cylinder end of the angle adjustment strut is movably mounted in the inner mounting seat by an axis, the protruding end of the angle adjustment strut is movably assembled with the lower surface of the inner closed cover plate, and the surface lifting guide rail is fixedly mounted on the upper surface of the inner closed cover plate.

[0010] The internal sealing shrinkage frame at the lower opening of the internal isolation chamber is provided with three bottom notches for loading and unloading the electric-controlled bottom separation cover.

[0011] The side wall of the internal isolation chamber is provided with a lateral air guide cover at the connection end of the pressure air chamber body, and a lateral pressure relief valve is elastically mounted at the outer opening position of the lateral air guide cover.

[0012] A lateral pressure relief port communicating with the interior of the lateral air guide cover is provided on the side wall of the internal isolation chamber.

[0013] The electrically controlled bottom separation cover comprises a bottom sealing cover plate, an inner regulating motor fixedly mounted on one side of an inner isolation chamber, a top mounting block fixed on the upper surface of the bottom sealing cover plate, a lateral locking block fixed on the outer arc surface of the top mounting block, and an arc-shaped closing cover plate.

[0014] The surface lifting guide rail includes a transverse guide rail fixed on the upper surface of the internal closed cover plate and an electrically controlled adjusting screw installed inside the transverse guide rail. The GIL unit fixing fixture is slidably assembled with the transverse guide rail through an internal threaded assembly block that is sleeved on the outside of the electrically controlled adjusting screw rod.

[0015] The beneficial effects of the present invention are:

[0016] (1) The pressure chamber for ultra-high voltage direct current particle experiments of the present invention is equipped with an electrically controlled flip control module in the internal isolation chamber on the inner bottom surface of the pressure chamber body, and the upper end opening of the internal isolation chamber can be closed from the inside and the outside respectively, so that the GIL unit can be isolated from the inside of the high-voltage chamber when it is replaced, thereby avoiding internal pressure relief and reducing energy waste caused by repeated pressurization due to pressure loss;

[0017] (2) An electrically controlled bottom separation cover is movably mounted at the lower opening of the internal isolation bin, so that the pressure in the internal isolation bin can be pre-discharged when the bottom discharge port is opened, thereby improving the safety of the electrically controlled bottom separation cover during disassembly;

[0018] (3) The electronically controlled flip control module and the electronically controlled bottom separation cover are controlled by electronic control, which saves time and effort, and the structural adjustment is more stable;

[0019] (4) The use of an electrically controlled flip control module can not only close the upper opening of the internal isolation chamber, but also adjust the height of the GIL unit, thereby facilitating the adjustment of the position of the GIL unit and the distance from the observation mechanism, so that it can be applied to detection units of different specifications and has a wider range of applications;

[0020] (5) The inner side of the internal isolation chamber is provided with an inwardly bent internal sealing shrinkage frame at the upper and lower opening positions, which can increase the assembly area, improve assembly stability and sealing;

[0021] (6) The entire adjustment process is completed completely internally, and the internal pressure will not be affected by the adjustment, thereby reducing the energy consumption of the experimental process and reducing the testing cost;

[0022] (7) The internal isolation chamber can not only be used for isolation loading and unloading, but also serve as an internal support, making the observation process more stable and the data more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0024] Figure 1 It is a structural schematic diagram of the present invention.

[0025] Figure 2 It is a schematic diagram of the internal structure of the present invention.

[0026] Figure 3 It is a schematic diagram of the assembly of the electrically controlled bottom separation cover of the present invention.

[0027] Figure 4 It is a partial schematic diagram of the electric-controlled flip control module of the present invention. DETAILED DESCRIPTION

[0028] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Figure 1 , Figure 2 , Figure 3 and Figure 4 A pressure chamber for ultra-high voltage direct current particle experiments shown in the figure comprises a pressure chamber body 1, a high voltage bushing 2 with a high voltage input power source installed inside is fixedly mounted on the upper surface of the pressure chamber body 1, a lateral boosting bushing 3 for an external boosting pump and a lateral observation connecting pipe 4 for an external photon device fixing fixture box are fixedly mounted on the side wall of the pressure chamber body 1, an upwardly protruding internal isolation chamber 5 is provided on the inner bottom surface of the pressure chamber body 1, an electrically controlled flip control module 7 for installing a GIL unit 6 is movably mounted at the upper end opening position of the internal isolation chamber 5, and an electrically controlled bottom separation cover 8 is movably mounted on the lower surface of the pressure chamber body 1 at the lower end opening position of the internal isolation chamber 5.

[0031] Two photon detection devices are integrated in a photon device fixing fixture box with a flange, and the probe power supply and signal acquisition are interconnected with external devices through adapter cables. The photon device fixing fixture box is tightly connected to the lateral observation connecting tube 4 through a flange, and is isolated from the internal air pressure of the pressure chamber body 1 through a quartz glass window. The particles to be tested are placed inside the GIL unit 6, and the GIL unit 6 is fixed in the pressure chamber body 1 through an electrically controlled flip control module 7, which is introduced by an external high-voltage power supply. The characteristic signals such as the number of photons, luminous intensity, partial discharge amplitude, discharge phase, and discharge repetition rate of different samples under the operating electric field in the same time dimension are measured and recorded, and stored in a fault feature fingerprint library.

[0032] In order to cooperate with embedded installation, the inner side surface of the internal isolation compartment 5 is provided with an inner mounting seat 9 which is recessed outwards.

[0033] In order to cooperate with the electric-controlled flip adjustment, the electric-controlled flip control module 7 includes an external closed cover 71, an internal closed cover 72, an arc-shaped fixed bracket 73, an angle adjustment support rod 74, a surface lifting guide rail 75 and a GIL unit fixing fixture 76.

[0034] The angle between the outer closed cover plate 71 and the inner closed cover plate 72 is 90 degrees, and a reflective lens is pasted on the surface of the outer closed cover plate 71 adjacent to the GIL unit fixing fixture 76 to improve the observation range.

[0035] In order to enhance the internal supporting force and sealing performance, the inner side surface of the internal isolation chamber 5 has an inwardly bent internal sealing shrinking frame 51 at the upper and lower opening positions, and the internal closed cover plate 72 is movably assembled with the lower surface of the internal sealing shrinking frame 51 at the upper opening through a lateral bracket.

[0036] In order to cooperate with the angle adjustment, the external closed cover plate 71 and the internal closed cover plate 72 are fixedly connected by an arc-shaped fixed bracket 73, and the cylinder end of the angle adjustment strut 74 is movably installed in the internal mounting seat 9 through an axis, and the protruding end of the angle adjustment strut 74 is movably assembled with the lower surface of the internal closed cover plate 72, and the surface lifting guide rail 75 is fixedly installed on the upper surface of the internal closed cover plate 72.

[0037] The angle adjustment support rod 74 controls the inner closed cover plate 72 to be flipped and adjusted by telescoping, so that when the inner closed cover plate 72 flips upward, the outer closed cover plate 71 also flips upward synchronously.

[0038] In order to facilitate loading and unloading, the internal sealing shrinkage frame 51 at the lower end opening of the internal isolation chamber 5 has three bottom notches 52 for loading and unloading the electric-controlled bottom separation cover 8.

[0039] In order to avoid danger when opening, the side wall of the internal isolation chamber 5 is provided with a lateral air guide cover 53 at the connection end of the pressure air chamber body 1, and a lateral pressure relief valve 54 is elastically installed at the outer opening position of the lateral air guide cover 53.

[0040] In order to facilitate lateral pressure relief, a lateral pressure relief port 55 communicating with the interior of the lateral air guide cover 53 is provided on the side wall of the internal isolation chamber 5 .

[0041] In order to cooperate with the electrically controlled opening and closing, the electrically controlled bottom separation cover 8 includes a bottom sealing cover plate 81, an inner adjusting motor 82 fixedly mounted on one side of the internal isolation chamber 5, a top mounting block 83 fixed on the upper surface of the bottom sealing cover plate 81, a lateral locking block 84 fixed on the outer arc surface of the top mounting block 83, and an arc-shaped closing cover plate 85.

[0042] The outer arc surface of the bottom sealing cover plate 81 has an adjustment tooth surface, and the lower end adjustment shaft of the inner adjustment motor 82 is meshed with the adjustment tooth surface through the bottom side gear. The inner adjustment motor 82 is started to drive the bottom sealing cover plate 81 to flip, thereby controlling the lateral locking block 84 to rotate from the bottom notch 52 position to the internal sealing shrink frame 51, thereby achieving the purpose of rotation locking.

[0043] For the convenience of control, a bottom handle is also installed on the lower surface of the bottom sealing cover plate 81. When the inner regulating motor 82 controls the bottom sealing cover plate 81 to rotate and separate, the arc-shaped closed cover plate 85 is first controlled to separate from the lateral pressure relief port 55, and the internal pressure of the internal isolation chamber 5 is discharged from the lateral pressure relief valve 54 position of the outer opening of the lateral air guide cover 53 without affecting the discharge port. Then, when the arc-shaped closed cover plate 85 is completely separated from the lateral pressure relief port 55, the lateral locking block 84 is moved to the bottom notch 52 position, and the bottom sealing cover plate 81 can be normally disassembled. Unloading is also safer; similarly, during installation, the bottom sealing cover plate 81 is first inserted from bottom to top into the sinking groove on the lower surface of the pressure chamber body 1, and then the adjusting tooth surface of the outer arc surface of the bottom sealing cover plate 81 is meshed with the bottom side gear and the adjusting tooth surface on the lower end adjusting shaft of the inner side adjusting motor 82, and then the inner side adjusting motor 82 is started. The inner side adjusting motor 82 first controls the lateral locking block 84 to rotate from the bottom notch 52 position to the internal sealing shrinkage frame 51, and then the arc-shaped closing cover plate 85 completely closes the lateral pressure relief port 55.

[0044] In order to cooperate with translation and lifting adjustment, the surface lifting guide rail 75 includes a transverse guide rail 751 fixed on the upper surface of the internal closed cover 72 and an electric control adjustment screw rod 752 installed inside the transverse guide rail 751. The GIL unit fixing clamp 76 is slidably assembled with the transverse guide rail 751 by means of an internal threaded assembly block that is sleeved on the outside of the electric control adjustment screw rod 752.

[0045] The electrically controlled adjusting screw 752 drives the internal thread assembly block to move inside the horizontal guide rail 751 by rotating, thereby driving the mounting bracket outside the internal thread assembly block and the GIL unit fixing clamp 76 located at the end of the mounting bracket to move. The purpose of the GIL unit fixing clamp 76 is to fix the GIL unit, and at the same time, it can be electrically controlled to rotate and adjust along the mounting bracket. The adjustment method is to set an adjusting motor inside the mounting bracket, and control the rotation angle of the GIL unit fixing clamp 76 by adjusting the rotation of the motor.

[0046] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A pressure chamber for ultra-high voltage direct current particle experiments, comprising a pressure chamber body (1), characterized in that: The upper surface of the pressure chamber body (1) is fixedly equipped with a high-voltage bushing (2) with a high-voltage input power supply installed inside, and the side wall of the pressure chamber body (1) is fixedly equipped with a lateral boosting bushing (3) for an external boosting pump and a lateral observation connecting pipe (4) for an external photon device fixing fixture box. The inner bottom surface of the pressure chamber body (1) is provided with an upwardly protruding internal isolation chamber (5), and the upper end opening position of the internal isolation chamber (5) is movably equipped with an electrically controlled flip control module (7) for installing a GIL unit (6), and the lower surface of the pressure chamber body (1) is located at the lower end opening position of the internal isolation chamber (5) and is movably equipped with an electrically controlled bottom separation cover (8).

2. The pressure chamber for ultra-high voltage direct current particle experiment according to claim 1 is characterized by: The inner side surface of the inner isolation chamber (5) is provided with an inner mounting seat (9) which is recessed outwards.

3. The pressure gas chamber for ultra-high voltage direct current particle experiment according to claim 2 is characterized by: The electrically controlled turnover control module (7) comprises an external closed cover plate (71), an internal closed cover plate (72), an arc-shaped fixed bracket (73), an angle adjustment support rod (74), a surface lifting guide rail (75) and a GIL unit fixing fixture (76).

4. The pressure gas chamber for ultra-high voltage direct current particle experiment according to claim 3 is characterized by: The inner side surface of the internal isolation chamber (5) is provided with an inwardly bent internal sealing shrinkage frame (51) at the upper and lower opening positions, and the internal closing cover plate (72) is movably assembled with the lower surface of the internal sealing shrinkage frame (51) with the upper opening via a lateral bracket.

5. The pressure chamber for ultra-high voltage direct current particle experiment according to claim 4 is characterized by: The outer closed cover plate (71) and the inner closed cover plate (72) are fixedly connected via an arc-shaped fixed bracket (73); the cylinder end of the angle adjustment support rod (74) is movably mounted in the inner mounting seat (9) via an axis; the protruding end of the angle adjustment support rod (74) is movably assembled with the lower surface of the inner closed cover plate (72); and the surface lifting guide rail (75) is fixedly mounted on the upper surface of the inner closed cover plate (72).

6. The pressure gas chamber for ultra-high voltage direct current particle experiment according to claim 4, characterized in that: The internal sealing shrinkage frame (51) at the lower opening of the internal isolation chamber (5) is provided with three bottom notches (52) for loading and unloading the electrically controlled bottom separation cover (8).

7. The pressure gas chamber for ultra-high voltage direct current particle experiment according to claim 1 is characterized by: The side wall of the internal isolation chamber (5) is provided with a lateral air guide cover (53) at the connection end of the pressure air chamber body (1), and a lateral pressure relief valve (54) is elastically mounted at the outer opening position of the lateral air guide cover (53).

8. The pressure gas chamber for ultra-high voltage direct current particle experiment according to claim 7 is characterized by: A lateral pressure relief port (55) communicating with the interior of the lateral air guide cover (53) is provided on the side wall of the internal isolation chamber (5).

9. The pressure gas chamber for ultra-high voltage direct current particle experiment according to claim 1, characterized in that: The electrically controlled bottom separation housing (8) comprises a bottom sealing cover plate (81), an inner regulating motor (82) fixedly mounted on one side of the inner isolation chamber (5), a top mounting block (83) fixed on the upper surface of the bottom sealing cover plate (81), a lateral locking block (84) fixed on the outer arc surface of the top mounting block (83), and an arc-shaped closing cover plate (85).

10. The pressure gas chamber for ultra-high voltage direct current particle experiment according to claim 3, characterized in that: The surface lifting guide rail (75) comprises a transverse guide rail (751) fixed on the upper surface of the internal closed cover plate (72) and an electrically controlled adjusting screw rod (752) installed inside the transverse guide rail (751); the GIL unit fixing fixture (76) is slidably assembled with the transverse guide rail (751) by being sleeved on the outer side of the electrically controlled adjusting screw rod (752) through an internal threaded assembly block.

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