CN113932984A - Switch cabinet helium leak detection and inflation system - Google Patents
Switch cabinet helium leak detection and inflation system Download PDFInfo
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- CN113932984A CN113932984A CN202111152345.5A CN202111152345A CN113932984A CN 113932984 A CN113932984 A CN 113932984A CN 202111152345 A CN202111152345 A CN 202111152345A CN 113932984 A CN113932984 A CN 113932984A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
- G01M3/202—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material using mass spectrometer detection systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
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- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a helium leak detection and inflation system for a switch cabinet, which is used for detecting the switch cabinet and comprises: a plurality of vacuum boxes, an air extractor, a helium filling device, a helium mass spectrum leakage detecting device, a helium recovery device and SF6The vacuum box is connected with a box body air pipe extending to the inside of the vacuum box and a cabinet body air pipe extending to the inside of the switch cabinet; the belt, vacuum chamber place on the belt, and the belt is used for driving the vacuum chamber to pass through air exhaust device, helium filling device, helium mass spectrum leak hunting device, helium recovery unit, SF in proper order6Filling device to complete hole pumping, helium filling, helium detection, helium recovery and SF filling in sequence6The process (2). Compared with manual leak detection, the helium leak detection and inflation system for the switch cabinet provided by the invention has the advantage that the production efficiency is improved.
Description
Technical Field
The invention relates to the field of electrical switches, in particular to a helium leakage detecting and inflating system of a switch cabinet.
Background
The gas insulated switchgear has the advantages of small volume, high reliability and no influence of external environment on operation, and is more and more accepted by domestic users, but still many problems affecting the long-term operation reliability of products are to be solved, wherein the sealing reliability is a key factor for fully playing the advantages of the gas insulated switchgear and ensuring the long-term operation reliability of the gas insulated switchgear. For gas insulated switchgear that passes the factory insulation test, the insulation performance of the equipment is mainly gas insulated inside the gas filled cellThe molecular density of the medium provides guarantee, under the normal working condition, the internal air pressure of the gas insulation switch cabinet is higher than the external air pressure, under the action of air pressure difference, the density of the gas insulation medium in the inflatable compartment can be continuously reduced because the gas medium with the insulation function can be leaked outwards through leakage points, and insulation accidents can be caused when the density is reduced to the allowable limit value. At SF6When the switch cabinet leaves the factory, the tightness of the switch cabinet needs to be detected, helium mass spectrum leakage detection is adopted in the past, the period is long, only a single switch cabinet can be tested at one time, the pipeline installation steps are complex, the efficiency is low, and the production period is greatly influenced.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the helium leakage detecting and inflating system for the switch cabinet, provided by the invention, can improve the leakage detecting efficiency of the switch cabinet, reduce the labor intensity of workers and improve the production efficiency.
A switch cabinet helium leak detection and inflation system according to an embodiment of a first aspect of the invention is used for detecting a switch cabinet, and comprises: a plurality of vacuum boxes, an air extractor, a helium filling device, a helium mass spectrum leakage detecting device, a helium recovery device and SF6Filling device, belt. The vacuum box is used for accommodating the switch cabinet, and a box body air pipe extending to the inside of the vacuum box and a cabinet body air pipe extending to the inside of the switch cabinet are connected to the vacuum box; the vacuum chamber is placed on the belt, the belt is used for driving the vacuum chamber passes through in proper order air exhaust device helium filling device helium mass spectrum leak hunting device helium recovery unit SF6Filling device to complete hole pumping, helium filling, helium detection, helium recovery and SF filling in sequence6The process (2).
The helium leakage detecting and inflating system for the switch cabinet, provided by the embodiment of the invention, at least has the following technical effects: the helium leakage detecting and inflating system of the switch cabinet provided by the embodiment of the invention drives the vacuum box and the switch box to pass through the air pumping device, the helium filling device, the helium mass spectrum leakage detecting device, the helium recovering device and the SF according to the belt6Filling withProvided is a device. Automatically completing the vacuumizing, helium filling, leakage detecting, helium recovering and SF filling of the switch cabinet6Compared with manual leak detection, the working procedure of the method improves the production efficiency.
According to some embodiments of the invention, a box body normally closed electromagnetic valve is installed at the upper end of the box body air pipe, and a cabinet body normally closed electromagnetic valve is installed at the upper end of the cabinet body air pipe.
According to some embodiments of the invention, the upper end of the cabinet air pipe is connected with a cabinet connector electrically connected with the cabinet normally closed electromagnetic valve, and the upper end of the cabinet air pipe is connected with a cabinet connector electrically connected with the cabinet normally closed electromagnetic valve.
According to some embodiments of the present invention, the air extracting device includes an air extracting pump, a first air cylinder, and a second air cylinder, a first air extracting pipe is connected to a telescopic end of the first air cylinder, a second air extracting pipe is connected to a telescopic end of the second air cylinder, the first air extracting pipe and the second air extracting pipe are both connected to the air extracting pump through a hose, the first air extracting pipe is connected to a first joint, the second air extracting pipe is connected to a second joint, the first air cylinder is configured to drive the first air extracting pipe to move so as to be in butt joint with the corresponding box air pipe below, and when the first air extracting pipe is in butt joint with the box air pipe, the first joint is in butt joint with the box joint so as to open the box normally closed electromagnetic valve by energizing; the second air cylinder is used for driving the second air exhaust pipe to move so as to be in butt joint with the air pipe of the cabinet body corresponding to the lower portion, and when the second air exhaust pipe is in butt joint with the air pipe of the cabinet body, the second joint is in butt joint with the cabinet body joint so as to be electrified to open the normally closed electromagnetic valve of the cabinet body.
According to some embodiments of the present invention, the helium filling device includes a helium filling pump and a third cylinder, the helium filling pump is used for filling helium, a telescopic end of the third cylinder is connected to a helium filling pipe, the helium filling pipe is connected to a third joint, the helium filling pipe is connected to the helium filling pump, the third cylinder is used for driving the helium filling pipe to move so as to be in butt joint with the corresponding cabinet air pipe below, and when the helium filling pipe is in butt joint with the cabinet air pipe, the third joint is in butt joint with the cabinet joint so as to turn on the cabinet normally closed solenoid valve by electrifying.
According to some embodiments of the invention, the helium mass spectrometer leak detection device comprises a leak detection vacuum pump, a mass spectrometer leak detector and a fourth cylinder, wherein a telescopic end of the fourth cylinder is connected with a leak detection pipe, the leak detection pipe is connected with a fourth joint, the leak detection pipe is connected with the mass spectrometer leak detector, and the leak detection vacuum pump is connected with the mass spectrometer leak detector; the fourth cylinder is used for driving the movement of the leak detection pipe so as to be convenient for butt joint with the box body air pipe corresponding to the lower part, when the leak detection pipe is in butt joint with the box body air pipe, the fourth joint is in butt joint with the box body joint so as to be powered on to open the box body normally closed electromagnetic valve, and the leak detection vacuum pump is used for pumping the gas in the vacuum box to the mass spectrum leak detector.
According to some embodiments of the present invention, the helium recovery device includes a helium recovery pump for pumping out helium gas and a fifth cylinder, a telescopic end of the fifth cylinder is connected to a helium recovery pipe, the helium recovery pipe is connected to a fifth joint, the helium recovery pipe is connected to the helium recovery pump, the fifth cylinder is configured to drive the helium recovery pipe to move so as to be in butt joint with the corresponding cabinet body air pipe below, and when the helium recovery pipe is in butt joint with the cabinet body air pipe, the third joint is in butt joint with the cabinet body joint so as to energize to open the cabinet body normally-closed electromagnetic valve.
According to some embodiments of the invention, the SF6The filling device is used for filling SF6SF of gas6A charging pump and a sixth cylinder, wherein the telescopic end of the sixth cylinder is connected with SF6Filling pipe, said SF6The filling pipe is connected with a sixth joint, and the SF6Filling pipe and said SF6The charging pump is connected, and the sixth cylinder is used for driving the SF6The filling pipe is movable so as to be in butt joint with the air pipe of the cabinet body corresponding to the lower part when the SF is used6When the filling pipe is in butt joint with the air pipe of the cabinet body, the sixth joint is in butt joint with the cabinet body joint so as to be electrified to open the normally closed electromagnetic valve of the cabinet body.
According to some embodiments of the invention, the belt is provided with a positioning block against the vacuum box to facilitate accurate positioning of the vacuum box.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of an installation structure of an embodiment of the present invention;
FIG. 2 is a schematic view of a gas evacuation device in accordance with an embodiment of the present invention;
FIG. 3 is a schematic view of a helium filling apparatus of an embodiment of the present invention;
FIG. 4 is a schematic diagram of a helium mass spectrometer leak detection apparatus in accordance with an embodiment of the invention;
FIG. 5 is a schematic view of a helium recovery unit according to an embodiment of the present invention;
FIG. 6 is an SF of an embodiment of the present invention6A schematic view of a filling device.
Reference numerals:
the switch cabinet comprises a switch cabinet 100, a cabinet air pipe 110, a cabinet normally closed electromagnetic valve 111 and a cabinet joint 112;
a vacuum box 200, a box body air pipe 210, a box body normally closed electromagnetic valve 211 and a box body joint 212;
the air extracting device 300, an air extracting pump 310, a first air cylinder 320, a first air extracting pipe 321, a first joint 322, a second air cylinder 330, a second air extracting pipe 331 and a second joint 332;
the helium filling device 400, the helium filling pump 410, the third cylinder 420, the helium filling pipe 421 and the third joint 422;
helium mass spectrometer leak detection device 500, leak detection vacuum pump 510, mass spectrometer leak detector 520, fourth cylinder 530, leak detection pipe 531 and fourth joint 532;
the helium recovery device 600, the helium recovery pump 610, the fifth cylinder 620, the helium recovery pipe 621 and the fifth joint 622;
SF6charging device 700, SF6 Charge pump 710, sixth cylinder 720, SF6 A fill tube 721, a sixth fitting 722;
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 6, a helium leak detection and inflation system for a switch cabinet 100 according to an embodiment of the present invention includes:a plurality of vacuum boxes 200, an air extractor 300, a helium gas filling device 400, a helium mass spectrum leak detection device 500, a helium gas recovery device 600 and SF6Inflation device 700, belt 800. The vacuum box 200 is used for accommodating the switch cabinet 100, the vacuum box 200 is a sealed box body with a detachable top end, and the vacuum box 200 is connected with a box body air pipe 210 extending to the inside of the vacuum box 200 and a cabinet body air pipe 110 extending to the inside of the switch cabinet 100; the connection part of the cabinet body air pipe 110 and the vacuum box 200 is sealed by using a nut and a rubber gasket, the air extractor 300 is arranged on the rack, the air extractor 300 can be matched with the box body air pipe 210 and the cabinet body air pipe 110, and the air extractor 300 is used for evacuating the vacuum box 200 and the switch cabinet 100; the helium filling device 400 is installed on the rack, and the helium filling device 400 can be matched with the cabinet body air pipe 110 and is used for filling helium into the switch cabinet 100; the helium mass spectrometer leak detection device 500 is arranged on the rack, and the helium mass spectrometer leak detection device 500 can be matched with the box body air pipe 210 and is used for detecting whether helium gas exists in the vacuum box 200; the helium recovery device 600 is mounted on the rack, and the helium recovery device 600 can be matched with the cabinet body air pipe 110 and is used for recovering helium in the switch cabinet 100; SF6The filling device 700 is installed on the rack and matched with the cabinet air pipe 110 for filling SF into the switch cabinet 1006A gas; the belt 800, the vacuum box 200 is placed on the belt 800, and the belt 800 is used for driving the vacuum box 200 to pass through the air extractor 300, the helium gas filling device 400, the helium mass spectrometer leak detection device 500, the helium gas recovery device 600 and the SF in sequence6The filling device 700. Install cubical switchboard 100 in vacuum box 200, box trachea 210 and cabinet body trachea 110 have been connected, put a plurality of vacuum boxes 200 on belt 800 in proper order, when belt 800 drove vacuum box 200 through air exhaust device 300, air exhaust device 300 took out the air in vacuum box 200 and cubical switchboard 100, then vacuum box 200 was during through helium filling device 400, helium filling device 400 can pour into the helium into cubical switchboard 100, after the cubical switchboard 100 internal pressure reached helium filling pressure, then belt 800 drove vacuum box 200 and passed through helium mass spectrum leak hunting device 500, detect the helium content in vacuum box 200, if detected the helium in vacuum box 200, it has the leakage to say that the cubical switchboard box has, the cubical switchboard box that has the leakage carries out recovery processing, detect qualified cubical switchboard, send into helium recovery equipment, the helium contentPlacing 600, extracting helium in switch box, recovering helium, and collecting helium with SF6The charging device 700 injects SF into the switch box6And (5) gas is used for finishing the processing.
The invention provides a helium leakage detecting and inflating system of a switch cabinet, which drives a vacuum box 200 and a switch box to pass through an air extracting device 300, a helium filling device 400, a helium mass spectrum leakage detecting device 500, a helium recovering device 600 and SF according to the driving of a belt 8006The filling device 700. Automatically performing the steps of evacuating the switchgear 100, filling helium, detecting leak, recovering helium, filling SF6Compared with manual leak detection, the working procedure of the method improves the production efficiency.
In some embodiments of the present invention, the box body normally closed solenoid valve 211 is installed at the upper end of the box body air pipe 210, the box body normally closed solenoid valve 211 is opened only when the power is turned on, and the box body normally closed solenoid valve 211 is closed when the belt 800 drives the vacuum box 200 to move, so as to prevent air from entering the vacuum box 200. The cabinet body normally closed electromagnetic valve 111 is installed at the upper end of the cabinet body air pipe 110, and the effect of the cabinet body normally closed electromagnetic valve 111 is similar to that of the cabinet body normally closed electromagnetic valve 211, and detailed description is omitted.
In some embodiments of the present invention, the upper end of the cabinet air pipe 110 is connected to a cabinet connector 112 electrically connected to the cabinet normally closed solenoid valve 111, the upper end of the cabinet air pipe 210 is connected to a cabinet connector 212 electrically connected to the cabinet normally closed solenoid valve 211, and the cabinet connector 112 and the cabinet connector 212 are configured to receive a control current and conduct the current to the cabinet normally closed solenoid valve 211 and the cabinet normally closed solenoid valve 111. Is convenient to be connected with an external power supply.
In some embodiments of the present invention, the air extracting apparatus 300 includes an air extracting pump 310, a first air cylinder 320, and a second air cylinder 330, the air extracting pump 310 is a vacuum pump, a first air extracting pipe 321 is connected to a telescopic end of the first air cylinder 320, a second air extracting pipe 331 is connected to a telescopic end of the second air cylinder 330, the first air extracting pipe 321 and the second air extracting pipe 331 are both connected to the air extracting pump 310 through a hose, the first connector 322 is detachably connected to the first air extracting pipe 321, the second connector 332 is detachably connected to the second air extracting pipe 331, and both the first connector 322 and the second connector 332 are connected to a power supply. The first air cylinder 320 is used for driving the first suction pipe 321 to move up and down so as to be in butt joint with the corresponding box body air pipe 210 below, and when the first suction pipe 321 is in butt joint with the box body air pipe 210, the first connector 322 is in butt joint with the box body connector 212 so as to be electrified to open the box body normally-closed electromagnetic valve 211; the first connector 322 can be inserted into or directly abutted against the box connector 212. The sealing problem of the vacuum box 200 and the switch cabinet 100 in the conveying process of the belt 800 is effectively solved. The automation degree is improved. The second air cylinder 330 is used for driving the second air exhaust tube 331 to move up and down, the position of the second air exhaust tube 331 is matched with the cabinet air tube 110 corresponding to the lower part so as to be convenient for butt joint, and when the second air exhaust tube 331 is in butt joint with the cabinet air tube 110, the second connector 332 is in butt joint with the cabinet connector 112 so as to be electrified to open the cabinet normally closed electromagnetic valve 111.
In some embodiments of the present invention, the helium filling apparatus 400 includes a helium filling pump 410 for filling the switch box with helium and a third cylinder 420, the helium filling pump 410 being connected to a helium gas source such as a helium bottle. The flexible end of third cylinder 420 is connected with helium gas and fills notes pipe 421, third cylinder 420 drives helium gas and fills notes pipe 421 and reciprocates, helium gas fills notes pipe 421 and is connected with third joint 422, third joint 422 links to each other with the power, helium gas fills notes pipe 421 and links to each other with helium gas filling pump 410, helium gas fills notes pipe 421 position and matches with cabinet body trachea 110, so that dock with the cabinet body trachea 110 that corresponds below, when helium gas fills notes pipe 421 and cabinet body trachea 110 butt joint, third joint 422 and cabinet body connect 112 butt joint, it can open cabinet body normally closed solenoid valve 111 to connect 422 circular telegram. The automation degree is improved, and helium leakage is reduced.
In some embodiments of the present invention, the helium mass spectrometer leak detection apparatus 500 comprises a leak detection vacuum pump 510, a mass spectrometer leak detector 520, and a fourth cylinder 530, wherein a leak detection pipe 531 is connected to a telescopic end of the fourth cylinder 530, and the fourth cylinder 530 drives the leak detection pipe 531 to move up and down. The leak detection pipe 531 is in bolted connection with a fourth joint 532, the fourth joint 532 is connected with a power supply, the leak detection pipe 531 is connected with the mass spectrometer leak detector 520 through a rubber pipe and the like, the leak detection vacuum pump 510 is connected with the mass spectrometer leak detector 520 through a pipeline, and the leak detection vacuum pump 510 can extract gas in the mass spectrometer leak detector 520; the fourth cylinder 530 is used for moving up and down with the leakage detection pipe 531 so as to be in butt joint with the corresponding box body air pipe 210 below, when the leakage detection pipe 531 is in butt joint with the box body air pipe 210, the fourth joint 532 can be in butt joint with the box body joint 212 to electrify and open the box body normally closed electromagnetic valve 211, and the leakage detection vacuum pump 510 is used for pumping gas in the vacuum box 200 to the mass spectrometer leak detector 520 and then to the leakage detection vacuum pump 510.
In some embodiments of the present invention, the helium recovery unit 600 includes a helium recovery pump 610 and a fifth cylinder 620 for pumping out helium. The helium recovery pump 610 is connected to a container such as a gas cylinder for storing helium. The flexible end of fifth cylinder 620 is connected with helium recovery pipe 621, and fifth cylinder 620 can drive helium recovery pipe 621 and move from top to bottom, and helium recovery pipe 621 vertical position aligns with the corresponding cabinet body trachea 110 of below. The helium recovery pipe 621 is connected to a fifth joint 622, and the fifth joint 622 is connected to a power supply. Helium recovery pipe 621 links to each other with helium recovery pump 610, and fifth cylinder 620 is used for driving the activity of helium recovery pipe 621 so that dock with the cabinet body trachea 110 that corresponds below, and when helium recovery pipe 621 docks with cabinet body trachea 110, third joint 422 can dock with cabinet body joint 112 and open cabinet body normally closed solenoid valve 111 with the circular telegram. Helium for leak detection in the switch cabinet 100 is pumped out through the cabinet body air pipe 110 by the helium recovery pump 610 connected with the helium recovery pipe 621, and since the helium is high in price, the helium recovery is favorable for saving the detection cost.
In some embodiments of the invention, SF6The charging device 700 is used for charging SF6SF of gas6Charge pump 710 and sixth cylinder 720, SF6Charge pump 710 and store SF6The gas cylinder is connected with gas sources. The telescopic end of the sixth cylinder 720 is connected with SF6Fill tube 721, SF6The charging pipe 721 is connected to a sixth connection 722, the sixth connection 722 is connected to a power supply, SF6Fill tube 721 and SF6Charging pump 710 connected to SF6Charge pump 710 connected to SF6The gas supply pipeline and the like. The sixth cylinder 720 is used for driving SF6The filling tube 721 is movable to facilitate docking with the corresponding lower cabinet air tube 110 when SF is applied6When the filling pipe 721 is connected to the cabinet air pipe 110, the sixth connector 722 is connected to the cabinet connector 112 to open the cabinet normally closed solenoid valve 111. SF6Is gas with better insulationThe switch cabinet 100 can be effectively prevented from generating electric arcs at the moment of disconnection.
In some embodiments of the present invention, the belt 800 is provided with a plurality of positioning blocks 810 abutting against the vacuum box 200, and the positioning blocks 810 are adhered to the surface of the belt 800 by glue. The vacuum box 200 is installed with the positioning blocks 810 interposed therebetween to facilitate accurate positioning of the vacuum box 200.
The working process is as follows: the switch cabinet 100 is installed in the vacuum box 200, and the belt 800 drives the vacuum box 200 to pass through the air extractor 300, the helium filling device 400, the helium mass spectrometer leak detection device 500, the helium recovery device 600 and the SF in sequence6The filling device 700. Air extractor 300, helium gas filling device 400, helium mass spectrum leak detection device 500, helium gas recovery device 600 and SF6The filling device 700 processes the corresponding vacuum box 200.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. A switchgear helium leak detection and aeration system for detecting a switchgear (100), comprising:
the vacuum boxes (200) are used for accommodating the switch cabinet (100), and box body air pipes (210) extending to the inside of the vacuum boxes (200) and cabinet body air pipes (110) extending to the inside of the switch cabinet (100) are connected to the vacuum boxes (200);
an air extraction device (300);
a helium gas filling device (400);
a helium mass spectrometer leak detection device (500);
a helium gas recovery device (600);
SF6a filling device (700);
belt (800), vacuum chamber (200) are placed on belt (800), belt (800) are used for driving vacuum chamber (200) pass through in proper order air exhaust device (300) helium filling device (400) helium mass spectrum leak hunting device (500) helium recovery unit (600) SF6The filling device (700) is used for conveniently and sequentially completing the steps of exhausting the hole gas, filling the helium gas, detecting, recovering the helium gas and filling the SF gas6The process (2).
2. The switch cabinet helium leak detection and inflation system of claim 1, wherein: the cabinet body air pipe (110) is characterized in that a box body normally closed electromagnetic valve (211) is installed at the upper end of the box body air pipe (210), and a cabinet body normally closed electromagnetic valve (111) is installed at the upper end of the cabinet body air pipe (110).
3. The switch cabinet helium leak detection and inflation system of claim 2, wherein: the upper end of the cabinet body air pipe (110) is connected with a cabinet body joint (112) electrically connected with the cabinet body normally closed electromagnetic valve (111), and the upper end of the cabinet body air pipe (210) is connected with a cabinet body joint (212) electrically connected with the cabinet body normally closed electromagnetic valve (211).
4. A switchgear helium leak detection and gassing system as claimed in claim 3 wherein: the air extracting device (300) comprises an air extracting pump (310), a first air cylinder (320) and a second air cylinder (330), the telescopic end of the first air cylinder (320) is connected with a first air suction pipe (321), the telescopic end of the second air cylinder (330) is connected with a second air suction pipe (331), the first suction pipe (321) and the second suction pipe (331) are both connected with the suction pump (310) through hoses, the first air suction pipe (321) is connected with a first joint (322), the second air suction pipe (331) is connected with a second joint (332), the first air cylinder (320) is used for driving the first suction pipe (321) to move so as to be convenient to be in butt joint with the corresponding box body air pipe (210) below, when the first suction pipe (321) is butted with the box body air pipe (210), the first joint (322) is butted with the box joint (212) to electrify and open the box normally closed electromagnetic valve (211); the second air cylinder (330) is used for driving the second air suction pipe (331) to move so as to be conveniently butted with the cabinet air pipe (110) corresponding to the lower part, and when the second air suction pipe (331) is butted with the cabinet air pipe (110), the second connector (332) is butted with the cabinet connector (112) so as to be electrified to open the cabinet normally-closed electromagnetic valve (111).
5. A switchgear helium leak detection and gassing system as claimed in claim 3 wherein: helium fills device (400) including helium filling pump (410) and third cylinder (420) that are used for filling into helium, the flexible end of third cylinder (420) is connected with helium and fills notes pipe (421), helium fills notes pipe (421) and is connected with third joint (422), helium fills notes pipe (421) with helium filling pump (410) link to each other, third cylinder (420) are used for driving helium fills the pipe (421) activity so that with the below correspond cabinet body trachea (110) butt joint, when helium fills pipe (421) with when cabinet body trachea (110) butt joint, third joint (422) with cabinet body joint (112) butt joint opens with the circular telegram cabinet body normally closed solenoid valve (111).
6. A switchgear helium leak detection and gassing system as claimed in claim 3 wherein: the helium mass spectrometer leak detection device (500) comprises a leak detection vacuum pump (510), a mass spectrometer leak detector (520) and a fourth cylinder (530), wherein the telescopic end of the fourth cylinder (530) is connected with a leak detection pipe (531), the leak detection pipe (531) is connected with a fourth joint (532), the leak detection pipe (531) is connected with the mass spectrometer leak detector (520), and the leak detection vacuum pump (510) is connected with the mass spectrometer leak detector (520); the fourth cylinder (530) is used for driving the movement of the leakage detecting pipe (531) so as to be convenient for butt joint with the box body air pipe (210) corresponding to the lower part, when the leakage detecting pipe (531) is in butt joint with the box body air pipe (210), the fourth joint (532) is in butt joint with the box body joint (212) to be powered on and open the box body normally closed electromagnetic valve (211), and the leakage detecting vacuum pump (510) is used for pumping gas in the vacuum box (200) to the mass spectrometer leak detector (520).
7. A switchgear helium leak detection and gassing system as claimed in claim 3 wherein: helium recovery unit (600) is including helium recovery pump (610) and fifth cylinder (620) that is used for taking out the helium, the flexible end of fifth cylinder (620) is connected with helium recovery pipe (621), helium recovery pipe (621) are connected with fifth joint (622), helium recovery pipe (621) with helium recovery pump (610) link to each other, fifth cylinder (620) are used for driving helium recovery pipe (621) activity is so that correspond with the below cabinet body trachea (110) dock, work as helium recovery pipe (621) with when cabinet body trachea (110) dock, third joint (422) with cabinet body joint (112) dock with the circular telegram is opened cabinet body normally closed solenoid valve (111).
8. A switchgear helium leak detection and gassing system as claimed in claim 3 wherein: the SF6A charging device (700) for charging SF6SF of gas6A charging pump (710) and a sixth cylinder (720), wherein the telescopic end of the sixth cylinder (720) is connected with SF6A filling pipe (721), the SF6A sixth joint (722) is connected to the filling pipe (721), and the SF6A filling pipe (721) and the SF6A charge pump (710) connected to the sixth cylinder (720) for driving the SF6The filling pipe (721) is movable to be in butt joint with the corresponding air pipe (110) of the cabinet body below when the SF is6When the filling pipe (721) is in butt joint with the cabinet body air pipe (110), the sixth joint (722) is in butt joint with the cabinet body joint (112) to electrify and open the cabinet body normally-closed electromagnetic valve (111).
9. The switch cabinet helium leak detection and inflation system of claim 1, wherein: and a positioning block (810) which is abutted against the vacuum box (200) is arranged on the belt (800) so as to accurately position the vacuum box (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111152345.5A CN113932984A (en) | 2021-09-29 | 2021-09-29 | Switch cabinet helium leak detection and inflation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111152345.5A CN113932984A (en) | 2021-09-29 | 2021-09-29 | Switch cabinet helium leak detection and inflation system |
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| Publication Number | Publication Date |
|---|---|
| CN113932984A true CN113932984A (en) | 2022-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111152345.5A Withdrawn CN113932984A (en) | 2021-09-29 | 2021-09-29 | Switch cabinet helium leak detection and inflation system |
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| CN (1) | CN113932984A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116357881A (en) * | 2023-03-31 | 2023-06-30 | 广钢气体(广州)有限公司 | Helium zero-leakage filling device and method |
| CN118067313A (en) * | 2024-04-18 | 2024-05-24 | 七星电气股份有限公司 | Gas leakage detection method and device for insulating switch cabinet |
-
2021
- 2021-09-29 CN CN202111152345.5A patent/CN113932984A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116357881A (en) * | 2023-03-31 | 2023-06-30 | 广钢气体(广州)有限公司 | Helium zero-leakage filling device and method |
| CN116357881B (en) * | 2023-03-31 | 2023-10-20 | 广钢气体(广州)有限公司 | Helium zero-leakage filling device and method |
| CN118067313A (en) * | 2024-04-18 | 2024-05-24 | 七星电气股份有限公司 | Gas leakage detection method and device for insulating switch cabinet |
| CN118067313B (en) * | 2024-04-18 | 2024-08-09 | 七星电气股份有限公司 | Gas leakage detection method and device for insulating switch cabinet |
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Application publication date: 20220114 |