CN2121065U - Transparent double oil cup wet removal with slow flow device - Google Patents
Transparent double oil cup wet removal with slow flow device Download PDFInfo
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- CN2121065U CN2121065U CN 92213694 CN92213694U CN2121065U CN 2121065 U CN2121065 U CN 2121065U CN 92213694 CN92213694 CN 92213694 CN 92213694 U CN92213694 U CN 92213694U CN 2121065 U CN2121065 U CN 2121065U
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- lubricating cup
- transparent
- oil
- lower cover
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Abstract
The utility model discloses a dehumidifying device for oil filling electrical equipment. The dehumidifying device for oil filling electrical equipment is characterized in that a slow flow device which is composed of a slow flow valve sheet (1) with a guiding rod (23) and a spring (2) is additionally arranged on an inner hub position on the top of an upper cover (3), a slow flow device which is composed of an elastic film sheet (27) and a ventilation hole (25) is arranged on the side wall of the fixing ring (12) of a large oil cup, and a small transparent oil cup which is composed of a transparent oil pipe (14) and a perforated plate (20) is arranged in the inner cavity of a large transparent oil cup (15). The dehumidifying device for oil filling electrical equipment has the advantages that air current slowly enters and flows out under the condition that positive pressure and negative pressure are sharply increased, dehumidifying effect is ensured, the overflow of filtering oil is prevented, and the working state of the dehumidifying device for oil filling electrical equipment can be clearly observed in running, etc.
Description
The utility model relates to the damp-proof device of oil-filled electric equipment, is specially adapted to the oil-filled electric equipments of high pressure such as transformer, instrument transformer, circuit breaker.
As everyone knows, operating oil-filled electric equipment must install dehumidifier additional, to guarantee the dielectric strength of transformer oil.The performance quality of dehumidifier will directly influence the reliability of electric equipment operation, and existing dehumidifier still has following 3 weak points: when (1) produces bigger negative pressure whenever oil-filled inside electric appliance (when for example Yan Re rapid drawdown in summer thunderstorm causes the ambient temperature sudden change), can reduce effect on moisture extraction because intake velocity is fast; (2) when bigger malleation appears in oil-filled inside electric appliance moment (for example circuit breaker when closing, dividing operation, have more gas discharge), because air displacement is big at short notice, exhaust velocity is fast, and makes the oil strain row in the dehumidifier lubricating cup overflow.Several times operation is several times excessive, when waiting to wait oil level in the lubricating cup to drop to certain position, will completely lose the effect that oil sealing and oil filter; (3) such as the disclosed application number of Chinese patent be 91210596.8 " labyrinth type dehydrating breather ", because its Oil Guide mouth is a metal material, and do not observe the oil level situation, when refueling, be difficult to the correct injection rate of holding oil, be in operation, more can't judge that correctly electric equipment comprises the sealing condition of dehumidifier according to the working condition of positive and negative pressure state (liquid level difference of interior outer room).And poor sealing will cause dehumidifier to reduce and lose dehumidifying and filtration.
The purpose of this utility model just is to improve at the above deficiency of existing dehumidifier, provides a kind of when inside electric appliance during at less positive and negative pressure state, and gas can pass through that the dehumidifier eupnea dehumidifies; When bigger malleation and negative pressure occurring, gas can suck lentamente and discharge; The operating state that can observe dehumidifier of being in operation, have transparent pair of lubricating cup dehumidifier of the device that flows slowly.
The purpose of this utility model is achieved by the following technical solution: it still has loam cake, lower cover, glass tube, screw rod, trim ring, filter screen, nut and transparent big lubricating cup, and said loam cake, lower cover and glass tube, be loaded into one via screw rod and nut, its improvement part is following three aspects:
A) with last tops in the inner bolt hole of hub twist mutually in the centre bore of the screw tip close, be equiped with the unhurried current valve block of guide, and the centre bore of said screw rod becomes movingly with said guide post, on plane on the said unhurried current valve block, be provided with 1 air vent hole vertically at least, in unhurried current lower plane of valve block and loam cake between the hub board guide post around, be set with spring.Thereby constitute gas of the present utility model and discharge the unhurried current device.
B) big lubricating cup retainer plate and transparent big lubricating cup are fixedly connected by casting-in layer casting-in, big lubricating cup retainer plate and lower cover are for being threaded, and said big lubricating cup retainer plate is step-like, on the plane of its first order step, at least be provided with 1 air vent hole vertically, on the sidewall of its second level step, radially be provided with 1 air vent hole at least, the place is provided with the string face at said air vent hole, is installed with flexible sheet on said string face.Thereby constitute gas of the present utility model and suck the unhurried current device.
C) in transparent big lubricating cup, be provided with transparent oil pipe, and an end of said transparent oil pipe is embedded in the cannelure of lower cover, and the other end at transparent oil pipe is covered with porous plate, and said transparent oil pipe and porous plate are loaded into one by bolt and nut and lower cover.Thereby, make transparent oil pipe and porous plate constitute little lubricating cup.
Correctly grasp store oil amount in the lubricating cup for the ease of operating personnel, on the sidewall of transparent big lubricating cup of the present utility model, be provided with store oil volume scale.
The utility model can the eupnea dehumidifying when the less positive and negative pressure state of oil-filled inside electric appliance; When malleation, negative pressure occurring more greatly, because the effective action of unhurried current device, gas can suck or discharge slowly, thereby guarantees effect on moisture extraction, prevent that oil strain from overflowing; And be in operation and observe its operating state; The lubricating cup oiling can quantitatively be controlled.Compared with the prior art the utility model has above-mentioned tangible characteristics and progress.
Below in conjunction with drawings and Examples the utility model is further described.
Accompanying drawing 1 is a front section view of the present utility model.
Accompanying drawing 2 is the front section view of big lubricating cup retainer plate of the present utility model.
Accompanying drawing 3 is the top view of big lubricating cup retainer plate.
Accompanying drawing 4 is the front view that has the unhurried current valve block of guide post of the present utility model.
Accompanying drawing 5 is the top view that has the unhurried current valve block of guide post.
Accompanying drawing 6 is an axonometric drawing of the present utility model.
Referring to accompanying drawing 1,2,3,4,5,6, a kind of structure of the present utility model is by the unhurried current valve block (1) that has guide post (23), spring (2), loam cake (3), glass tube (6), screw rod (7), trim ring (8), filter screen (9), lower cover (11), big lubricating cup retainer plate (12), transparent oil pipe (14), transparent big lubricating cup (15), casting-in layer (18), porous plate (20), sealing ring (5), (10), (17), (19) (under the very high situation of machining accuracy, can without sealing ring) and nut (4), (13), (21) composition such as.Its loam cake (3), lower cover (11) and big lubricating cup retainer plate (12) all are that cast aluminium or glass fibre moulded plastic are made.Loam cake (3), glass tube (6), lower cover (11) and sealing ring (5), (10) install one by screw rod (7) and nut (4), (13).When reality is used, in glass tube (6), be contained in particle silica gel.Lower cover (11) is the flange body (referring to accompanying drawing 6) with wheel hub, spoke and wheel rim as loam cake (3).Filter screen (9) is fitted in the endoporus on lower cover (11) top by trim ring (8).The upper end of screw rod (7) is screwed in the screw of the interior hub of loam cake (3).Be located in the centre bore at screw rod (7) top, the unhurried current valve block (1) of the guide made from aluminium riveted joint (can whole Vehicle Processing be shaped, also can welding forming) (23) is housed, and guide post (23) and its centre bore are for movingly.Be axially arranged with 4 air vent holes (22) and illustrated air vent hole (22) in the upper edge, last plane of said valve block (1), connect with glass tube (6) inner chamber.In the lower plane of unhurried current valve block (1) and loam cake (3), be between the hub guide post (23) around, be set with stage clip (2).Thereby, constituted gas of the present utility model and discharged the unhurried current device.On the upper flange plate of loam cake (3), be provided with 4 mounting bolt holes.The bottom endoporus of lower cover (11) is provided with internal thread, and said internal thread closes with the external screw thread of big lubricating cup retainer plate (12) is stubborn mutually.Big lubricating cup retainer plate (12) is fixedly connected by epoxy resin casting-in layer (18) casting-in with transparent big lubricating cup (15).Big lubricating cup retainer plate (12) is step-like, on the plane of its first order step, is provided with 2 air vent holes (24) vertically, on the sidewall of its second level step, radially is provided with 2 air vent holes (25) that connect with transparent big lubricating cup (15).Locate to be provided with string face (26) at said air vent hole (25), on said string face (26), riveted joint or bonding or bolt have polyester flexible sheet (27).Thereby, constituted gas of the present utility model and sucked the unhurried current device.Be located at the transparent glass tube (14) of transparent big lubricating cup (15) inner chamber, its upper end is embedded in the cannelure of lower cover (11) (16), and be covered with porous plate (20) in its lower end, and said transparent oil pipe (14) and porous plate (20) and sealing ring (17), (19), be loaded into one by screw rod (7), nut (21), thereby make transparent oil pipe (14) and porous plate (20) constitute little lubricating cup.On the lateral wall of transparent big lubricating cup (15), be provided with store oil volume scale (28).
The utility model is in operation, when ambient temperature is reduced in inside electric appliance and produces less negative pressure, 2 air admission holes (24) of humid gas on big lubricating cup retainer plate (12) that contain in the atmosphere enter annular air channel (A), this moment is because negative pressure is less, polyester flexible sheet (27) is failure to actuate, air-flow is via 2 air vent holes (25), the oil sealing filter that enters in the transparent big lubricating cup (15) is assorted, it is assorted to enter the oil sealing filter of little lubricating cup (i.e. the little lubricating cup of being made up of transparent oil pipe (14) and porous plate (20)) through porous plate (24) again, then air-flow enters in the glass tube (6) via filter screen (9), passed through " labyrinth-like " gas circuit dehumidifying of forming by particle silica gel again, by the interior hub of loam cake (3) and the gap between the unhurried current valve block (1), enter inside electric appliance then.When the ambient temperature rising, when inside electric appliance produced less malleation, the gas of inside electric appliance entered in the atmosphere with above-mentioned opposite direction.The respiration of one-in-and-one-out has like this reached the effect of dehumidifying removal of impurities and hydrofuge respectively.When bigger malleation appearred in moment, unhurried current valve block (1) moved downward, and closes main airway, and 4 air vent holes (22) of gas on being located at unhurried current valve block (1) slowly enter in the lubricating cup, overflow to avoid the oil sealing in the lubricating cup.After gas was discharged, valve block (1) resetted under the effect of spring (2), recovers normal respiration channel.In order to prevent to flow slowly valve block (1) under the effect of spring or when installing, take place offside or drop, can on the ring-shaped step of loam cake (3) garden, top, set up the stopping means of non-return valve (1), and said stopping means can be made of pressing plate and screw.When the ambient temperature rapid drawdown, when inside electric appliance produces bigger negative pressure, air-flow is inhaled the polyester flexible sheet (27) that moves on the string face (26) that is located at big lubricating cup retainer plate (12), part is blocked 2 air vent holes (25) on the big lubricating cup retainer plate (12), make containing humid gas and can only slowly enter in the transparent big lubricating cup (15) in the atmosphere, avoided a large amount of wet gas to enter inside electric appliance, given full play to big, the filtration of little lubricating cup twice oil sealing, and the hygroscopic effect of the middle particle silica gel of glass tube (6), prevented effectively because the dewfall water inlet that variation of ambient temperature (hot summer is descended thunderstorm suddenly) is produced.
Claims (2)
1, a kind of transparent pair of lubricating cup dehumidifier that has the device that flows slowly, it has loam cake (3), lower cover (11), glass tube (6), screw rod (7), trim ring (8), filter screen (9), nut (13) and transparent big lubricating cup (15), and said loam cake (3), lower cover (11) and glass tube (6), be loaded into one via screw rod (7), nut (13), it is characterized in that:
A) with loam cake (3) top in the inner bolt hole of hub twist mutually in the centre bore on screw rod (7) top close, the unhurried current valve block (1) of guide (23) is housed, and the centre bore of said screw rod (7) becomes movingly with said guide post (23), at least be provided with 1 air vent hole (22) on the last plane of said unhurried current valve block (1) vertically, what be in guide post (23) between the hub in a plane and the loam cake (3) of unhurried current valve block (1) is set with spring (2) on every side;
B) big lubricating cup retainer plate (12) is fixedly connected by casting-in layer (18) casting-in with transparent big lubricating cup (15), big lubricating cup retainer plate (12) and lower cover (11) are for being threaded, and said big lubricating cup retainer plate (12) is step-like, on the plane of its first order step, at least be provided with 1 air vent hole (24) vertically, on the sidewall of its second step, radially be provided with 1 air vent hole (25) at least, locate to be provided with string face (26) at said air vent hole (25), on said string face (26), be installed with flexible sheet (27);
C) in transparent big lubricating cup (15), be provided with transparent oil pipe (14), and an end of said transparent oil pipe (14) is embedded in the cannelure (16) of lower cover (11), be covered with porous plate (20) at its other end, and said transparent oil pipe (14) and porous plate (20) are loaded into one by screw rod (7), nut (21) with lower cover (11).
2, the transparent pair of lubricating cup dehumidifier that has the device that flows slowly according to claim 1 is characterized in that, on the sidewall of transparent big lubricating cup (15), is provided with store oil volume scale (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92213694 CN2121065U (en) | 1992-04-24 | 1992-04-24 | Transparent double oil cup wet removal with slow flow device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92213694 CN2121065U (en) | 1992-04-24 | 1992-04-24 | Transparent double oil cup wet removal with slow flow device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2121065U true CN2121065U (en) | 1992-11-04 |
Family
ID=4958375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92213694 Granted CN2121065U (en) | 1992-04-24 | 1992-04-24 | Transparent double oil cup wet removal with slow flow device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2121065U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104575964A (en) * | 2015-01-21 | 2015-04-29 | 国家电网公司 | Moisture absorber for transformer |
| CN106653293A (en) * | 2016-12-07 | 2017-05-10 | 广东电网有限责任公司东莞供电局 | Double-oil level perspective oil cup device for main transformer respirator |
| CN110660565A (en) * | 2019-11-14 | 2020-01-07 | 中车大连机车车辆有限公司 | Moisture absorber for expansion oil tank of locomotive transformer |
-
1992
- 1992-04-24 CN CN 92213694 patent/CN2121065U/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104575964A (en) * | 2015-01-21 | 2015-04-29 | 国家电网公司 | Moisture absorber for transformer |
| CN106653293A (en) * | 2016-12-07 | 2017-05-10 | 广东电网有限责任公司东莞供电局 | Double-oil level perspective oil cup device for main transformer respirator |
| CN110660565A (en) * | 2019-11-14 | 2020-01-07 | 中车大连机车车辆有限公司 | Moisture absorber for expansion oil tank of locomotive transformer |
| CN110660565B (en) * | 2019-11-14 | 2021-06-18 | 中车大连机车车辆有限公司 | Moisture absorber for expansion oil tank of locomotive transformer |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |