CN103807492A - Special oil injecting and discharging valve for high-voltage electrical equipment - Google Patents

Special oil injecting and discharging valve for high-voltage electrical equipment Download PDF

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Publication number
CN103807492A
CN103807492A CN201210443583.6A CN201210443583A CN103807492A CN 103807492 A CN103807492 A CN 103807492A CN 201210443583 A CN201210443583 A CN 201210443583A CN 103807492 A CN103807492 A CN 103807492A
Authority
CN
China
Prior art keywords
valve body
valve
electrical equipment
oil
voltage electrical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201210443583.6A
Other languages
Chinese (zh)
Inventor
杨红斌
葛乃军
刘红
赵凯凯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Sieyuan Hertz Instrument Transformer Co Ltd
Original Assignee
Jiangsu Sieyuan Hertz Instrument Transformer Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Sieyuan Hertz Instrument Transformer Co Ltd filed Critical Jiangsu Sieyuan Hertz Instrument Transformer Co Ltd
Priority to CN201210443583.6A priority Critical patent/CN103807492A/en
Publication of CN103807492A publication Critical patent/CN103807492A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
    • F16L15/006—Screw-threaded joints; Forms of screw-threads for such joints with straight threads
    • F16L15/007—Screw-threaded joints; Forms of screw-threads for such joints with straight threads with more than one threaded section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
    • F16L15/006—Screw-threaded joints; Forms of screw-threads for such joints with straight threads
    • F16L15/008—Screw-threaded joints; Forms of screw-threads for such joints with straight threads with sealing rings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/08—Cooling; Ventilating
    • H01F27/10—Liquid cooling
    • H01F27/12—Oil cooling
    • H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling

Abstract

The invention relates to a special oil injecting and discharging valve for high-voltage electrical equipment, and is used on electrical equipment in electric power industry. The special oil injecting and discharging valve consists of a valve body, a valve core, an exhaust screw bolt, a first end surface sealing ring, a second end surface sealing ring, a third end surface sealing ring, a sealing ring and an ejector pin, wherein the valve core is arranged in an inner cavity of the valve body, the exhaust screw bolt is arranged on the valve body, the ejector pin is arranged on the valve core and penetrates out of the valve body by passing through the inner cavity of the valve body through an axial oil outlet, the end part of the valve body is provided with the second end surface sealing ring, and the third end surface sealing ring is arranged on the exhaust screw bolt. The exhaust screw bolt is arranged on the valve body, so air in the inner cavity of the valve body can be completely exhausted during the oil injection; through the adoption of the ejector pin, a one-way valve arranged in the high-voltage electrical equipment can be propped open through rotating the valve core, and no leakage is caused during oiling; the gap between the ejector pin and the oil outlet formed in the valve body is smaller than the diameters of solid fillings in the high-voltage electrical equipment, so the solid fillings are prevented from flowing out in the oil replacing process.

Description

The special Oil-filling and drainage valve of a kind of high-voltage electrical equipment
Technical field
On a kind of device, particularly high-tension apparatus that the present invention relates to use on power industry electric equipment for noting the special Oil-filling and drainage valve of a kind of high-voltage electrical equipment of draining the oil.
Background technique
Through retrieving relevant patent documentation, not yet retrieve a kind of high-voltage electrical equipment special Oil-filling and drainage valve identical with structure of the present invention at present.Existing high-voltage electrical equipment generally adopts insulating oil to insulate as medium, and equipment in use will regularly change and put insulating oil, and the electric equipment that oil mass is lacked carries out repairing.Oil-filling and drainage valve on existing high-voltage electrical equipment is due to the reason of structure, what general employing spool steel ball combined with spring carries out unilaterally connected, because the insulating oil after using exists medium unavoidably, be trapped on spool steel ball in the process medium of draining the oil, sealing effect is declined, thereby occur leaking the phenomenons such as oil impregnate; In the time that equipment is carried out to repairing, be difficult to exclude the air in valve, make unnecessary air enter into equipment, affect the performance of product, so be necessary existing Oil-filling and drainage valve to be improved, to improve the quality of product, meet the needs of product.
Summary of the invention
The object of the invention is to provide a kind of improvement on existing Oil-filling and drainage valve architecture basics, there is good seal performance, and the special Oil-filling and drainage valve of a kind of high-voltage electrical equipment of air in drain effectively.
Technical characteristics of the present invention is: be designed to the special Oil-filling and drainage valve of a kind of high-voltage electrical equipment that is made up of valve body, spool, bleeder screw, end-face seal ring I, end-face seal ring II, end-face seal ring III, seal ring, thimble considering that product applicability is strong, on the basis of good seal performance, in the inner chamber of valve body, be provided with spool; On valve body, be provided with bleeder screw; Thimble is arranged on spool, and described thimble passes outside valve body by Axial-running Out hydraulic fluid port through the inner chamber of valve body; Be provided with end-face seal ring II in the end of valve body; On bleeder screw, be provided with end-face seal ring III; On spool, be provided with at least one seal ring.
Described valve body is provided with Axial-running Out hydraulic fluid port, rod radial air vent, and the gap that described oil outlet and thimble form is less than the diameter of solid filler in electric equipment.
Described spool is made up of valve core, filler opening, axial oilhole, seal groove, inclined oil hole of air, and filler opening, axial oilhole connect, and at least one road sealing groove is set on valve core, and the screw thread on valve core matches with valve body; The A end face of valve core is an angled end-face, is provided with the inclined oil hole of air connecting with axial oilhole on A end face.
When use, the oil outlet on valve body is communicated with the filler opening on high-voltage electrical equipment, the end face of valve body seals by end-face seal ring II; Filler opening on spool is communicated with the oil outlet on fuel tank.In the time that needs carry out oiling to equipment, unclamp the valve on fuel tank, fluid enters into the inner chamber of valve body by the axial oil aperture inclined oil hole of air on spool, seal ring on body cavity and spool external diameter forms sealing, now unclamp bleeder screw, under the extruding of fluid, the air in body cavity is carried out to emptying through bleeder screw; Screw bleeder screw, and rotary spool, make thimble back down the one-way cock in equipment, in the inner chamber of fluid by the gap access arrangement in the oil outlet on thimble and valve body, in the time that oil filling amount reaches certain value, spool is rotated laterally, make the valve closing on High-Voltage Electrical Appliances, screw the oil inlet valve on fuel tank, oiling process completes simultaneously; In the time that needs are drained the oil, connect the oil circuit between fuel tank, rotary spool, makes thimble back down the one-way cock in high-voltage electrical equipment, and fluid flows in body cavity by the gap between oil outlet and thimble on valve body, and flows into fuel tank by axial oilhole.Gap between oil outlet on thimble and valve body is less than the diameter of solid filler in high-voltage electrical equipment, its objective is and avoids the outflow of solid filler to design.
Advantage of the present invention is: owing to being provided with bleeder screw on valve body, thereby can dirt discharging valve in the time of oiling air in intracoelomic cavity, guaranteed to inject the insulating oil quality of High-Voltage Electrical Appliances inner chambers; Owing to being provided with multiple seal rings, thereby guarantee sealing effect; Owing to being provided with thimble, thereby can back down the one-way cock in high-voltage electrical equipment by rotary spool, make to refuel without leaking; Because the gap between the oil outlet on thimble and valve body is less than the diameter of solid filler in high-voltage electrical equipment, thereby avoid the outflow of solid filler in the process of more changing oil; Due to rational in infrastructure, applicability is strong, and reliable performance can be widely used in all kinds of High-Voltage Electrical Appliances and miscellaneous equipment and note and drain the oil, so there is very large practical and popularizing value.
Accompanying drawing explanation
Below with reference to accompanying drawing, the present invention is described further:
Accompanying drawing is the structural representation of the special Oil-filling and drainage valve of a kind of high-voltage electrical equipment of the present invention.
Embodiment
With reference to accompanying drawing, the special Oil-filling and drainage valve of a kind of high-voltage electrical equipment of the present invention is made up of valve body 1, spool 2, bleeder screw 3, end-face seal ring I 4, end-face seal ring II 5, end-face seal ring III 6, seal ring 7, thimble 8, is provided with spool 2 in the inner chamber of valve body 1; On valve body 1, be provided with bleeder screw 3; Thimble 8 is arranged on spool 2, and described thimble 8 passes outside valve body 1 by Axial-running Out hydraulic fluid port 11 through the inner chamber of valve body 1; Be provided with end-face seal ring II 5 in the end of valve body 1; On bleeder screw 3, be provided with end-face seal ring III 6; On spool 2, be provided with at least one seal ring 7; Described valve body 1 is provided with Axial-running Out hydraulic fluid port 11, rod radial air vent 12, and the gap that described oil outlet 11 and thimble 8 form is less than the diameter of solid filler in electric equipment; Described spool 2 is made up of valve core 21, filler opening 22, axial oilhole 23, seal groove 24, inclined oil hole of air 25, and filler opening 22, axial oilhole 23 connect, and at least one road sealing groove 24 is set on valve core 21, and the screw thread on valve core 21 matches with valve body 1; The A end face of valve core 21 is an angled end-face, is provided with the inclined oil hole of air 25 connecting with axial oilhole 23 on A end face.

Claims (3)

1. the special Oil-filling and drainage valve of high-voltage electrical equipment is made up of valve body (1), spool (2), bleeder screw (3), end-face seal ring I (4), end-face seal ring II (5), end-face seal ring III (6), seal ring (7), thimble (8), it is characterized in that: in the inner chamber of valve body (1), be provided with spool (2); On valve body (1), be provided with bleeder screw (3); It is upper that thimble (8) is arranged on spool (2), and described thimble (8) passes outside valve body (1) by Axial-running Out hydraulic fluid port (11) through the inner chamber of valve body (1); Be provided with end-face seal ring II (5) in the end of valve body (1); On bleeder screw (3), be provided with end-face seal ring III (6); On spool (2), be provided with at least one seal ring (7).
2. the special Oil-filling and drainage valve of a kind of high-voltage electrical equipment according to claim 1, it is characterized in that: described valve body (1) is provided with Axial-running Out hydraulic fluid port (11), rod radial air vent (12), the gap that described oil outlet (11) and thimble (8) form is less than the diameter of solid filler in electric equipment.
3. the special Oil-filling and drainage valve of a kind of high-voltage electrical equipment according to claim 1, it is characterized in that: described spool (2) is made up of valve core (21), filler opening (22), axial oilhole (23), seal groove (24), inclined oil hole of air (25), filler opening (22), axial oilhole (23) connect, at least one road sealing groove (24) is set on valve core (21), and the screw thread on valve core (21) matches with valve body (1); The A end face of valve core (21) is an angled end-face, is provided with the inclined oil hole of air (25) connecting with axial oilhole (23) on A end face.
CN201210443583.6A 2012-11-09 2012-11-09 Special oil injecting and discharging valve for high-voltage electrical equipment Pending CN103807492A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210443583.6A CN103807492A (en) 2012-11-09 2012-11-09 Special oil injecting and discharging valve for high-voltage electrical equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210443583.6A CN103807492A (en) 2012-11-09 2012-11-09 Special oil injecting and discharging valve for high-voltage electrical equipment

Publications (1)

Publication Number Publication Date
CN103807492A true CN103807492A (en) 2014-05-21

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CN201210443583.6A Pending CN103807492A (en) 2012-11-09 2012-11-09 Special oil injecting and discharging valve for high-voltage electrical equipment

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CN (1) CN103807492A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104633135A (en) * 2015-02-10 2015-05-20 中国海洋石油总公司 Oil injection valve and oil injection structure of hydraulic system
CN112392604A (en) * 2020-10-30 2021-02-23 中国航发西安动力控制科技有限公司 Oil drainage valve device and oil drainage method
CN115076482A (en) * 2022-06-28 2022-09-20 成都叁能锐达能源科技有限公司 Hose coupler with oil supplementing tool

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5992018A (en) * 1996-07-11 1999-11-30 Robert Bosch Gmbh Valve needle and process for producing a valve needle
CN101592229A (en) * 2008-06-01 2009-12-02 江苏思源赫兹互感器有限公司 Oil feeding and relieve valve of high pressure electric appliance special device
CN102230853A (en) * 2011-04-08 2011-11-02 杭州市电力局 Pull-down device for live-line sampling of mutual inductor and connecting device of sample tap
CN202093941U (en) * 2011-06-03 2011-12-28 吉林省电力有限公司吉林供电公司 Oil filling nozzle for mutual inductor
CN202972149U (en) * 2012-11-09 2013-06-05 江苏思源赫兹互感器有限公司 Special oil injection and drainage valve for high voltage electrical equipment

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5992018A (en) * 1996-07-11 1999-11-30 Robert Bosch Gmbh Valve needle and process for producing a valve needle
CN101592229A (en) * 2008-06-01 2009-12-02 江苏思源赫兹互感器有限公司 Oil feeding and relieve valve of high pressure electric appliance special device
CN102230853A (en) * 2011-04-08 2011-11-02 杭州市电力局 Pull-down device for live-line sampling of mutual inductor and connecting device of sample tap
CN202093941U (en) * 2011-06-03 2011-12-28 吉林省电力有限公司吉林供电公司 Oil filling nozzle for mutual inductor
CN202972149U (en) * 2012-11-09 2013-06-05 江苏思源赫兹互感器有限公司 Special oil injection and drainage valve for high voltage electrical equipment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104633135A (en) * 2015-02-10 2015-05-20 中国海洋石油总公司 Oil injection valve and oil injection structure of hydraulic system
CN112392604A (en) * 2020-10-30 2021-02-23 中国航发西安动力控制科技有限公司 Oil drainage valve device and oil drainage method
CN115076482A (en) * 2022-06-28 2022-09-20 成都叁能锐达能源科技有限公司 Hose coupler with oil supplementing tool

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Application publication date: 20140521