Electric control adjusting module for ultrahigh-pressure direct-current experiment pressure air chamber

Abstract

The invention relates to the technical field of ultrahigh-pressure direct-current test adjustment, in particular to an electronic control adjustment module for an ultrahigh-pressure direct-current test pressure air chamber, which comprises a pressure chamber body applied to an ultrahigh-pressure direct-current test and a fixing clamp box with two built-in photon detection devices. According to the electronic control adjusting module for the ultrahigh-pressure direct-current experiment pressure air chamber, loading and unloading operation is carried out in an isolation mode, internal pressure loss caused by loading and unloading is avoided, the stability of an internal test environment is guaranteed, and energy consumption is reduced; adjustment is carried out in a lateral overturning mode, the structure of the longitudinal storage cylinder can be reduced, overturning adjustment in the pressure chamber body can be facilitated, and layout is more reasonable. The electric control type overturning cover plate is attached to the outer side of the longitudinally-arranged storage barrel through overturning, a strip-shaped longitudinally-arranged opening in the outer side face of the longitudinally-arranged storage barrel is closed, and the internal air tightness of the longitudinally-arranged storage barrel is improved.

Description

Technical Field

[0001] The invention relates to the technical field of ultra-high voltage direct current test regulation, in particular to an electric control regulation module for an ultra-high voltage direct current test pressure chamber. Background Art

[0002] DC gas-insulated power transmission is suitable for high voltage and large capacity applications. Due to land restrictions, environmental constraints and future DC development plans, there is an urgent need for a new power transmission mode, DC GIS / GIL, worldwide. DC GIS / GIL technology has good application prospects.

[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. The current pressure chamber needs to disassemble and replace the GIL model unit after each observation, but the internal air pressure will be lost quickly during the replacement. After each installation, it needs to be re-pressurized, which greatly increases the experimental cost, and it is also inconvenient for the internal operation of the GIL model unit, resulting in a limited observation range. Summary of the invention

[0004] The technical problem to be solved by the present invention is that the current pressure chamber needs to disassemble and replace the GIL model unit after each observation, but the internal air pressure will quickly lose pressure during the replacement. After each installation, it needs to be re-pressurized, which greatly increases the experimental cost. It is also very inconvenient for the internal operation of the GIL model unit, resulting in a limited observation range.

[0005] The technical solution adopted by the present invention to solve its technical problems is: an electrically controlled adjustment module for an ultra-high voltage direct current experimental pressure chamber, comprising a pressure chamber body used for ultra-high voltage direct current testing and a fixed fixture box with two built-in photon detection devices, the pressure chamber body and the observation port of the fixed fixture box being fixedly connected by a flange, a longitudinal storage tube is fixedly installed on one side of the inner bottom surface of the pressure chamber body, a strip-shaped longitudinal opening is opened on the outer side surface of the longitudinal storage tube, an electrically controlled flip cover is movably installed on the outer side of the longitudinal storage tube at the position of the strip-shaped longitudinal opening, an electrically controlled fixture for assembling a GIL unit is installed on the inner side of the electrically controlled flip cover, and the lower end of the pressure chamber body is located at the lower end opening position of the longitudinal storage tube and is movably installed with an embedded bottom sealing cover.

[0006] An embedded pressure regulating valve is fixedly installed on the upper surface of the vertical storage cylinder.

[0007] The upper end of the longitudinal storage tube is located above the strip-shaped longitudinal opening and is fixedly equipped with a top side mounting bracket.

[0008] The electrically controlled flip cover comprises an arc-shaped flip closed cover movably connected to the inner shaft of the top mounting bracket through a top frame, a control frame fixed on the inner side of the arc-shaped flip closed cover, and an inner electrically controlled support rod movably mounted on the inner side of the longitudinal storage tube.

[0009] An embedded adjustment guide rail for installing an electric control fixture is provided on the inner arc surface of the arc-shaped flip-closed cover.

[0010] The electrically controlled fixture comprises an electrically controlled lead screw installed inside an embedded adjustment guide rail, an internally threaded translation block threadedly sleeved on the outside of the electrically controlled lead screw, a bottom locking frame fixedly installed on the outside of the internally threaded translation block via a lateral frame, an electrically controlled assembly adjustment frame movably installed on the inside of the bottom locking frame, and an arc-shaped guide frame fixed on the side wall of the lateral frame.

[0011] The lower end of the pressure chamber body is located at the lower end opening position of the vertical storage tube and is provided with a circular sinking groove.

[0012] A bottom discharge cover is provided on the side wall of the vertical storage cylinder, and an elastic sealing cover plate is elastically assembled at the opening position of the lower end of the bottom discharge cover.

[0013] The inner side surface of the longitudinal storage tube is provided with a plurality of arc-shaped locking grooves connected with the circular sinking groove, the upper surface of the embedded bottom sealing cover plate is provided with a plurality of locking blocks protruding upward, and the side wall of the locking block is provided with an arc-shaped sealing cover plate.

[0014] An annular adjustment groove for installing an electric control assembly adjustment frame is provided on the inner arc surface of the bottom locking frame. The electric control assembly adjustment frame includes an adjustment motor fixedly installed on the side wall of the bottom locking frame, an internal adjustment ring slidably installed in the annular adjustment groove, an internal limit frame fixed on the side wall of the internal adjustment ring, an arc-shaped assembly strip fixed on the inner side surface of the internal adjustment ring, and a built-in adjustment gear.

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

[0016] (1) The electronically controlled regulating module for an ultra-high voltage direct current experimental pressure chamber of the present invention performs loading and unloading operations in an isolated manner, thereby preventing internal pressure loss due to loading and unloading, thereby ensuring the stability of the internal test environment and reducing energy consumption;

[0017] (2) The sideways flipping method is adopted for adjustment, which not only reduces the structure of the vertical storage cylinder, but also facilitates flipping and adjustment inside the pressure chamber body, making the layout more reasonable;

[0018] (3) The electrically controlled flip cover is flipped and attached to the outside of the longitudinal storage tube, closing the strip-shaped longitudinal opening on the outer surface of the longitudinal storage tube, thereby improving the internal airtightness of the longitudinal storage tube;

[0019] (4) An electric control fixture for assembling the GIL unit is installed on the inner side of the arc-shaped flip closed cover, which can not only control the translation and rotation of the GIL unit at the upper end of the vertical storage tube, but also greatly improve the test accuracy and range;

[0020] (5) An embedded bottom sealing cover plate is movably installed inside the circular sinking groove at the lower end of the pressure chamber body. By rotating the embedded bottom sealing cover plate, not only the opening at the lower end of the vertical storage cylinder can be closed, but also the pressure in the vertical storage cylinder can be adjusted in advance, thereby improving the safety of loading and unloading;

[0021] (6) The electric control fixture adopts a quick separation structure design, which can greatly reduce the difficulty of loading and unloading;

[0022] (7) By installing an embedded pressure regulating valve on the upper surface of the longitudinal storage cylinder, the connection state between the longitudinal storage cylinder and the pressure chamber body can be freely adjusted, thereby reducing the difficulty and cost of flipping the electrically controlled flip cover. 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 partial schematic diagram of the electrically controlled flip cover in the closed state in the present invention.

[0027] Figure 4 It is a partial schematic diagram of the electrically controlled flip cover in the present invention in the unfolded state.

[0028] Figure 5 It is a schematic diagram of the internal structure of the electric control clamp in the present invention. DETAILED DESCRIPTION

[0029] 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.

[0030] 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.

[0031] Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The electronically controlled regulating module for an ultra-high voltage direct current experimental pressure gas chamber shown in the figure comprises a pressure chamber body 1 applied to ultra-high voltage direct current test and a fixed fixture box 2 with two built-in photon detection devices, the two photon detection devices are integrated in a fixed fixture box 2 with a flange, and the probe power supply and signal acquisition are interconnected with external devices through a transfer line. The fixed fixture box 2 is closely connected to the pressure chamber body 1 through a flange, and is isolated from the internal air pressure of the pressure chamber body 1 through a quartz glass window. The pressure chamber body 1 and the observation port of the fixed fixture box 2 are fixedly connected through a flange, a vertical storage cylinder 3 is fixedly installed on one side of the inner bottom surface of the pressure chamber body 1, and a strip-shaped vertical opening 4 is opened on the outer surface of the vertical storage cylinder 3, and an electronically controlled flip cover plate 5 is movably installed on the outer side of the vertical storage cylinder 3 at the position of the strip-shaped vertical opening 4, and an electronically controlled fixture 7 for assembling a GIL unit 6 is installed on the inner side of the electronically controlled flip cover plate 5, and the particles to be tested are placed inside the cavity of the GIL unit 6, and the GIL unit 6 is fixed in the pressure chamber body 1, and 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 the fault characteristic fingerprint library. The lower end of the pressure chamber body 1 is located at the lower end opening position of the vertical storage tube 3 and is movably equipped with an embedded bottom sealing cover plate 8.

[0032] An embedded pressure regulating valve 9 is fixedly mounted on the upper surface of the vertical storage tube 3 .

[0033] A top mounting bracket 10 is fixedly mounted on the upper end of the vertical storage tube 3 above the strip-shaped vertical opening 4 .

[0034] In order to cooperate with the flip adjustment, the electrically controlled flip cover 5 includes an arc-shaped flip closing cover 51 movably connected to the inner axis of the top side mounting bracket 10 through a top frame, a control frame 52 fixed on the inner side of the arc-shaped flip closing cover 51, and an inner electrically controlled support rod 53 movably installed on the inner side of the longitudinal storage tube 3.

[0035] The cylinder end of the inner electric control support rod 53 is movably assembled with the inner wall of the longitudinal storage tube 3, and the extended end of the inner electric control support rod 53 is movably assembled with the control frame 52. The inner electric control support rod 53 controls the arc-shaped flip closing cover plate 51 to be movably assembled along the top side mounting bracket 10 by telescoping.

[0036] In the closed state, the arc-shaped flip closed cover plate 51 flips downward to close the strip-shaped vertical opening 4, and at this time the pressure chamber body 1 and the vertical storage tube 3 are in an isolated state; in the open state, the arc-shaped flip closed cover plate 51 flips upward, and at this time the electrically controlled flip cover plate 5 controls the GIL unit 6 to be set horizontally, facing the observation port of the fixed fixture box 2, and at this time the photon detection device can observe the internal storage port of the GIL unit 6.

[0037] In order to cooperate with the inner translation, an embedded adjustment guide rail 54 for installing the electric control fixture 7 is provided on the inner arc surface of the arc-shaped flip closing cover plate 51 .

[0038] In order to cooperate with the electric control adjustment translation, the electric control clamp 7 includes an electric control screw 71 installed inside the embedded adjustment guide rail 54, an internal thread translation block 72 threadedly sleeved on the outside of the electric control screw 71, a bottom locking frame 74 fixedly installed on the outside of the internal thread translation block 72 through a lateral frame 73, an electric control assembly adjustment frame 75 movably installed on the inside of the bottom locking frame 74, and an arc-shaped guide frame 76 fixed on the side wall of the lateral frame 73.

[0039] The electric control screw 71 drives the internal thread translation block 72 to translate along the embedded adjustment guide rail 54 by rotating, and then drives the entire lateral frame 73, the bottom locking frame 74, the electric control assembly adjustment frame 75 and the arc guide frame 76 to translate, so that it can translate close to the observation port position of the fixed fixture box 2, thereby improving the observation accuracy of the photon detection device inside the fixed fixture box 2.

[0040] In order to cooperate with the bottom assembly and sealing, a circular sinking groove 11 is opened at the lower end of the pressure chamber body 1 and located at the lower end opening of the vertical storage tube 3.

[0041] In order to cooperate with the pre-lateral pressure relief, a bottom discharge cover 12 is provided on the side wall of the vertical storage tube 3 , and an elastic sealing cover plate 13 is elastically assembled at the opening position of the lower end of the bottom discharge cover 12 .

[0042] In order to cooperate with lateral installation and limiting, and at the same time to control the opening and closing of the bottom side unloading cover 12 connecting port during rotation, three arc-shaped locking grooves 14 connected to the circular sinking groove 11 are opened on the inner side surface of the longitudinal storage cylinder 3, and the upper surface of the embedded bottom sealing cover plate 8 has three upwardly protruding locking blocks 15, and the side wall of the locking block 15 is provided with an arc-shaped sealing cover plate 16.

[0043] When the embedded bottom sealing cover plate 8 rotates inside the circular sinking groove 11, the arc-shaped sealing cover plate 16 will first open the connecting port between the bottom side unloading cover 12 and the longitudinal storage cylinder 3. At this time, the pressure inside the longitudinal storage cylinder 3 will be released in advance, avoiding the dangerous situation caused by the difficulty in unloading and rapid popping open of the embedded bottom sealing cover plate 8 due to the high internal air pressure.

[0044] The lower end opening of the arc-shaped locking groove 14 is connected to the interior of the circular sinking groove 11, and the embedded bottom sealing cover plate 8 is inserted into the lower end opening of the arc-shaped locking groove 14 through the arc-shaped sealing cover plate 16, and then the arc-shaped sealing cover plate 16 is horizontally inserted into the installation slot on one side of the arc-shaped locking groove 14 by rotating the embedded bottom sealing cover plate 8, thereby fixing the embedded bottom sealing cover plate 8 inside the circular sinking groove 11.

[0045] In order to cooperate with the electric control rotation adjustment, an annular adjustment groove for installing the electric control assembly adjustment frame 75 is opened on the inner arc surface of the bottom locking frame 74. The electric control assembly adjustment frame 75 includes an adjustment motor 751 fixedly installed on the side wall of the bottom locking frame 74, an internal adjustment ring 752 slidably installed in the annular adjustment groove, an internal limit frame 753 fixed on the side wall of the internal adjustment ring 752, an arc-shaped assembly strip 754 fixed on the inner side surface of the internal adjustment ring 752 and a built-in adjustment gear 755.

[0046] The built-in adjusting gear 755 is axially fixed on the adjusting shaft of the adjusting motor 751. The adjusting motor 751 drives the built-in adjusting gear 755 to rotate, thereby synchronously controlling the internal adjusting ring 752 to rotate. The operator inserts the bottom of the GIL unit 6 into the internal adjusting ring 752, limits it with the internal limit frame 753, and then uses the arc-shaped assembly strip 754 to install and limit the outer side of the GIL unit 6. The outer side of the GIL unit 6 is guided and limited by the arc-shaped guide frame 76, thereby improving the stability and guidance of the support.

[0047] The adjusting motor 751 is used to drive the internal adjusting ring 752 to rotate, and drive the GIL unit 6 to rotate, thereby performing a circular rotation, thereby increasing the observation range of the photon detection device.

[0048] 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. An electric control and regulation module for an ultra-high voltage direct current experimental pressure chamber, comprising a pressure chamber body (1) applied to an ultra-high voltage direct current test and a fixing fixture box (2) with two built-in photon detection devices, characterized in that: The pressure chamber body (1) is fixedly connected to the observation port of the fixed fixture box (2) via a flange, a longitudinal storage tube (3) is fixedly mounted on one side of the inner bottom surface of the pressure chamber body (1), a strip longitudinal opening (4) is opened on the outer side of the longitudinal storage tube (3), an electrically controlled flip cover (5) is movably mounted on the outer side of the longitudinal storage tube (3) at the position of the strip longitudinal opening (4), an electrically controlled fixture (7) for assembling a GIL unit (6) is installed on the inner side of the electrically controlled flip cover (5), and an embedded bottom sealing cover (8) is movably mounted on the lower end of the pressure chamber body (1) at the lower end opening position of the longitudinal storage tube (3).

2. The electronic control and regulation module for an ultra-high voltage direct current experimental pressure chamber according to claim 1 is characterized in that: An embedded pressure regulating valve (9) is fixedly mounted on the upper surface of the vertically arranged storage cylinder (3).

3. The electronic control and regulation module for an ultra-high voltage direct current experimental pressure chamber according to claim 1 is characterized in that: The upper end of the longitudinal storage tube (3) is located above the strip-shaped longitudinal opening (4) and is fixedly equipped with a top side mounting bracket (10).

4. The electronic control and regulation module for an ultra-high voltage direct current experimental pressure chamber according to claim 1 is characterized in that: The electrically controlled flip cover (5) comprises an arc-shaped flip closed cover (51) movably connected to the inner shaft of a top side mounting bracket (10) via a top frame, a control frame (52) fixed to the inner side of the arc-shaped flip closed cover (51), and an inner electrically controlled support rod (53) movably mounted on the inner side of a longitudinally placed storage tube (3).

5. The electronic control and regulation module for an ultra-high voltage direct current experimental pressure chamber according to claim 4 is characterized in that: The inner arc surface of the arc-shaped flip-closed cover plate (51) is provided with an embedded adjustment guide rail (54) for installing the electric control fixture (7).

6. The electronically controlled regulating module for an ultra-high voltage direct current experimental pressure chamber according to claim 5 is characterized in that: The electric control fixture (7) comprises an electric control lead screw (71) installed inside the embedded adjustment guide rail (54), an internal thread translation block (72) threadedly sleeved on the outside of the electric control lead screw (71), a bottom locking frame (74) fixedly installed on the outside of the internal thread translation block (72) via a lateral frame (73), an electric control assembly adjustment frame (75) movably installed on the inside of the bottom locking frame (74), and an arc-shaped guide frame (76) fixed on the side wall of the lateral frame (73).

7. The electronic control and regulation module for an ultra-high voltage direct current experimental pressure chamber according to claim 1 is characterized by: The lower end of the pressure chamber body (1) is located at the lower end opening of the vertical storage tube (3) and is provided with a circular sinking groove (11).

8. The electronically controlled regulating module for an ultra-high voltage direct current experimental pressure chamber according to claim 7 is characterized in that: The side wall of the vertical storage cylinder (3) is provided with a bottom discharge cover (12), and the lower opening of the bottom discharge cover (12) is elastically equipped with an elastic sealing cover plate (13).

9. The electronic control and regulation module for an ultra-high voltage direct current experimental pressure chamber according to claim 1 is characterized by: The inner side surface of the longitudinal storage tube (3) is provided with a plurality of arc-shaped locking grooves (14) connected to the circular sinking groove (11); the upper surface of the embedded bottom sealing cover plate (8) is provided with a plurality of locking blocks (15) protruding upward; and the side wall of the locking block (15) is provided with an arc-shaped sealing cover plate (16).

10. The electronic control and regulation module for an ultra-high voltage direct current experimental pressure chamber according to claim 6, characterized in that: The inner arc surface of the bottom locking frame (74) is provided with an annular adjustment groove for mounting an electric control assembly adjustment frame (75), and the electric control assembly adjustment frame (75) comprises an adjustment motor (751) fixedly mounted on the side wall of the bottom locking frame (74), an internal adjustment ring (752) slidably mounted in the annular adjustment groove, an internal limit frame (753) fixed on the side wall of the internal adjustment ring (752), an arc-shaped assembly strip (754) fixed on the inner side surface of the internal adjustment ring (752), and a built-in adjustment gear (755).

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