CN210719795U - Mutual inductor oil taking tool and transformer with same - Google Patents
Mutual inductor oil taking tool and transformer with same Download PDFInfo
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- CN210719795U CN210719795U CN201921442141.3U CN201921442141U CN210719795U CN 210719795 U CN210719795 U CN 210719795U CN 201921442141 U CN201921442141 U CN 201921442141U CN 210719795 U CN210719795 U CN 210719795U
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Abstract
The utility model discloses a mutual-inductor gets oily frock, including the installation disk seat, be equipped with the installation passageway that link up along the axial in the installation disk seat, be equipped with in the installation passageway and get the oil case, be equipped with the play oil channel that link up along the axial in getting the oil case, the top of getting the oil case is supported the end and is used for pushing up with the sealed ball sealer of getting the oil head oil feed end, and the overhanging end of getting the oil case extends the installation passageway, and overhanging end is used for being connected with the flourishing oily utensil of splendid attire appearance oil. The oil taking valve core is used for sliding towards the direction close to the sealing ball under the action of the acting force exerted on the outward extending end so that the abutting end jacks the sealing ball to further enable the oil taking connector to be communicated with the oil outlet channel, and the oil taking valve core is also used for sliding towards the direction far away from the sealing ball under the action of the acting force exerted on the outward extending end so that the abutting end loosens the sealing ball to further enable the sealing ball to reseal the oil inlet end of the oil taking connector under the action of pressure. The mutual inductor oil taking tool further comprises a protection sleeve which is sleeved outside the installation valve seat and detachably connected with the installation valve seat.
Description
Technical Field
The utility model relates to an electrical equipment detects technical field, especially, relates to a mutual-inductor frock of getting oil. Furthermore, the utility model discloses still relate to a transformer of getting oily frock including above-mentioned mutual-inductor.
Background
Because of the mutual-inductor need carry out oil sample analysis experiment when the field acceptance, in addition, when the running state that needs to know the mutual-inductor is good, in setting for the period, also need carry out insulation detection to the mutual-inductor. After the oil sample is extracted, whether the characteristic gas of the oil sample has obvious change is checked by chromatographic analysis, and whether the main insulation aspect of the oil sample has problems can be found. In the prior art, the oil discharge port of the mutual inductor is connected with a conventional oil discharge valve, and when an oil sample needs to be extracted, the oil discharge valve is opened to adopt oil taking equipment to take oil. The conventional oil drain valve can be opened to take an oil sample by using an additional tool for matching, so that the operation is inconvenient; in the conventional oil drain valve, oil in an oil-filled product is easy to spray out in the oil taking process, so that inconvenience is brought to the oil taking work of electric workers, and the conflict emotion of the workers is also caused; some oil discharge ports are positioned at high places, so that electric workers can reach corresponding positions only by means of ladders and can take oil only by carrying additional tools, and great inconvenience is brought to work; the conventional oil drain valve is made of cast iron mostly and is exposed outdoors all the year round, and risks such as wire slipping, rusting and fracture are easy to occur due to repeated oil taking operation, so that potential hazards are brought to safe operation of the transformer.
SUMMERY OF THE UTILITY MODEL
The utility model provides a mutual-inductor gets oily frock and has its transformer to the needs that exist when solving and adopting conventional fuel outlet valve to get oil exist are with the help of extra instrument, operate inconvenient, get oily in-process appearance oil easily spray and make the operation of transformer have the technical problem of potential safety hazard.
The utility model adopts the technical scheme as follows:
a mutual inductor oil taking tool comprises an installation valve seat which is detachably connected with an oil taking connector of a transformer, an installation channel which axially penetrates through the installation valve seat is arranged in the installation valve seat, an oil taking valve core is arranged in the installation channel, an oil outlet channel which axially penetrates through the oil taking valve core is arranged in the oil taking valve core, the abutting end of the oil taking valve core is used for abutting against a sealing ball at the oil inlet end of a sealed oil taking connector, the extending end of the oil taking valve core extends out of the installation channel, and the extending end is detachably connected with an oil container for containing sample oil, so that the sample oil introduced into the oil outlet channel enters the oil container; the oil taking valve core is used for sliding towards the direction close to the sealing ball under the action of an acting force exerted on the outward extending end so that the abutting end jacks the sealing ball and the oil taking connector is communicated with the oil outlet channel, and is also used for sliding towards the direction far away from the sealing ball under the action of an acting force exerted on the outward extending end so that the abutting end loosens the sealing ball and the sealing ball reseals the oil inlet end of the oil taking connector under the action of pressure; the mutual inductor oil taking tool further comprises a protection sleeve group used for sealing and protecting the installation valve seat and the oil taking valve core, and the protection sleeve group is sleeved outside the installation valve seat and detachably connected with the installation valve seat.
Furthermore, the mounting valve seat is in a hollow cylinder shape and comprises a connecting cylinder and a mounting cylinder which are connected along the axial direction, a first internal thread is processed on the inner peripheral wall of the connecting cylinder, and a second internal thread is processed on the inner peripheral wall of the mounting cylinder; the outer peripheral wall of the oil taking connector is provided with a first external thread, the mounting valve seat is sleeved on the outer circle of the oil taking connector through the connecting cylinder, and the mounting valve seat is detachably connected with the oil taking connector through the matching of the first internal thread on the connecting cylinder and the first external thread on the oil taking connector; the outer peripheral wall of the oil taking valve core is provided with a second external thread, and the oil taking valve core is detachably arranged in the installation channel through the matching of the second external thread on the outer peripheral wall and a second internal thread on the inner peripheral wall of the installation valve seat installation cylinder.
Furthermore, the mounting cylinder comprises a first connecting section and a first guide section which are connected along the axial direction, a second internal thread is processed on the inner peripheral wall of the first connecting section, and a concave and annular inner limiting step is formed at the joint of the first connecting section and the first guide section; the oil taking valve core comprises a valve core body, wherein the valve core body comprises a second connecting section matched with the first connecting section and a second guiding section matched with the first guiding section; a second external thread is processed on the outer peripheral wall of the second connecting section, an outer convex annular limiting step is formed at the joint of the second connecting section and the second guide section, and the oil taking valve core is limited along the axial direction of the installation channel through the propping of the outer limiting step and the inner limiting step; the periphery wall of the second guide section is provided with an inwards concave annular mounting ring groove, and a first sealing ring piece used for sealing a gap between the valve core body and the mounting channel is mounted in the mounting ring groove.
Furthermore, the valve core body also comprises a propping section connected with the second connecting section, the end surface of the propping section is provided with an inwards concave propping groove, the propping groove is a spherical groove matched with the spherical surface of the sealing ball, and the valve core body stably props the sealing ball through the matching of the propping groove and the sealing ball; the end face of the abutting section is also provided with a plurality of inwards concave axial oil inlet holes, the axial oil inlet holes are sequentially distributed outside the abutting groove at intervals along the circumferential direction of the abutting groove, and each axial oil inlet hole is respectively communicated with the oil outlet channel.
Furthermore, the outer peripheral wall of the abutting section is provided with a plurality of concave radial oil inlet holes used for assisting oil inlet of the axial oil inlet holes, the plurality of radial oil inlet holes are sequentially arranged at intervals along the circumferential direction of the abutting section, and each radial oil inlet hole is communicated with the oil outlet channel.
Furthermore, the valve core body also comprises an overhanging section which extends out of the installation channel and is connected with the second guide section, the outer diameter of the overhanging section is larger than that of the second guide section, and a knurl for preventing holding and slipping is processed on the excircle of the overhanging section, or a concave and annular clamping groove is processed on the excircle of the overhanging section; the oil outlet channel comprises a drainage section and an oil outlet section which are connected along the axial direction, the inner diameter of the oil outlet section is larger than that of the drainage section, and the inner diameter of the oil outlet section is gradually increased along the flowing direction of sample oil.
Furthermore, the oil taking valve core also comprises a plurality of oil receiving nozzles, and the sizes and the models of the oil receiving nozzles are different; each oil receiving nozzle is detachably connected with the oil outlet end of the valve core body and is communicated with the oil outlet channel, a control valve for controlling the on-off of the corresponding oil receiving nozzle is arranged on each oil receiving nozzle, and a connecting structure detachably connected with an oil container to be matched and connected is arranged on the peripheral wall of each oil receiving nozzle.
Further, the protective sleeve set comprises a first protective cylinder, wherein the first protective cylinder is in a hollow cylinder shape with one open end and one closed end; a third external thread is processed on the excircle of the connecting cylinder, and a third internal thread matched with the third external thread on the excircle of the connecting cylinder is arranged on the inner peripheral wall of the opening end of the first protective cylinder; or the excircle of connecting cylinder is processed to have the indent and be annular first annular, the built-in sealed ring spare of second that is equipped with of first annular, still be equipped with on the connecting cylinder excircle and be annular first spacing step, the sealed ring spare of second is used for the in-process that embolias the connecting cylinder at first protective barrel open end warp in order to realize the sealed of hookup location, first protective barrel is connected with the connecting cylinder is detachable, and first spacing step be used for with the tang top on the internal perisporium of first protective barrel open end, in order to inject the axial position of connecting cylinder into first protective barrel.
Furthermore, the protection sleeve set comprises a first protection cylinder and a second protection cylinder which are oppositely arranged, and the first protection cylinder and the second protection cylinder are both in a hollow cylinder shape with one open end and one closed end; a third external thread is processed on the excircle of the connecting cylinder, and third internal threads matched with the third external thread on the excircle of the connecting cylinder are respectively arranged on the inner peripheral walls of the opening ends of the first protective cylinder and the second protective cylinder; or the excircle of the connecting cylinder is processed with a first annular groove and a second annular groove which are concave and annular, the first annular groove and the second annular groove are arranged at intervals along the axial direction, a second sealing ring piece is arranged in the first annular groove, a third sealing ring piece is arranged in the second annular groove, a first annular limiting step and a second annular limiting step are also arranged on the excircle of the connecting cylinder, the first annular limiting step and the second annular limiting step are arranged at intervals along the axial direction, and the first annular groove and the second annular groove are positioned between the first annular groove and the second annular groove; the second sealing ring piece is used for deforming in the process that the open end of the first protective cylinder is sleeved into the connecting cylinder from the outward extending end of the oil taking valve core so as to realize the sealing of a connecting position, the first protective cylinder is detachably connected with the connecting cylinder, and the first limiting step is used for abutting against a seam allowance on the inner peripheral wall of the open end of the first protective cylinder so as to limit the axial position of the first protective cylinder in the connecting cylinder; the third sealing ring piece is used for deforming in the process that the open end of the second protective cylinder is sleeved into the connecting cylinder through the abutting end of the oil taking valve core so as to realize the sealing of the connecting position, the second protective cylinder is detachably connected with the connecting cylinder, and the second limiting step is used for abutting against a seam allowance on the inner peripheral wall of the open end of the second protective cylinder so as to limit the axial position of the second protective cylinder in which the connecting cylinder is arranged.
According to the utility model discloses an on the other hand still provides a transformer, including getting the oil head, get detachable being connected with on the excircle of oil head and get oily frock like the mutual-inductor of any one above-mentioned.
The utility model discloses following beneficial effect has:
when the mutual inductor oil taking tool is adopted, no additional operating tool is needed, and the whole oil sampling process only needs to apply force to enable the oil taking valve core to slide forwards and backwards, so that the operation is simple and convenient, and the difficulty of oil taking operation of oil taking operators is greatly reduced; compared with the prior art that the oil is taken from the oil drain valve which is externally installed, the mutual inductor oil taking tool of the utility model comprises the protective sleeve group which is used for sealing and protecting the installation valve seat and the oil taking valve core, thereby effectively avoiding the reduction of the working quality and the difficulty of oil taking operation caused by the common working conditions of cold weather and oil on hand, and simultaneously effectively avoiding the hidden trouble caused by thread slipping, and by arranging the protective sleeve group, the outer seal is used for the oil extraction tool when the oil extraction tool does not need to sample oil, so as to prevent dust, impurities and the like from entering the oil extraction tool or the transformer, and because the protective sleeve set can carry out sealing protection on the oil taking tool, the sample oil in the transformer can be effectively prevented from being exposed, because the sample oil in the transformer is less, the problem that the transformer cannot work normally due to sample oil leakage can be avoided, the service life of the oil taking tool can be prolonged, and the operation risk of the transformer is reduced; because the oil outlet channel is in a disconnected state when the oil containing device is connected with the oil taking valve core, sample oil in the transformer cannot be sprayed out when an oil taking operator connects the oil containing device with the oil taking valve core, so that inconvenience is not brought to oil taking work, and the oil taking operator cannot generate a conflict emotion due to sample oil spraying; the oil taking valve core gradually jacks the sealing ball under the action of external force, so that the oil outlet channel is gradually communicated with the oil taking joint, and the amount of sample oil in the transformer is often small, so that the sample oil in the transformer can slowly flow out of the oil outlet channel by controlling the sliding speed and the sliding process of the oil taking valve core, and then slowly enters the oil container, and the situation that the sample oil enters the oil container at an excessively high speed and is insufficient in the transformer is avoided; the oil taking tool for the mutual inductor has the advantages of small volume, simple structure, low manufacturing cost and reliable operation;
when the transformer of the utility model is used for taking oil, no extra operation tool is needed, the operation is simple and convenient, and the difficulty of oil taking operation of oil taking operators can be greatly reduced; the device can effectively avoid the problems of reduced working quality and difficult oil taking operation caused by common working conditions such as cold weather and oil on hands, also effectively avoid the hidden danger caused by thread slipping, prevent dust, impurities and the like from entering an oil taking tool or a transformer, prevent sample oil in the transformer from being exposed, prolong the service life of the oil taking tool and reduce the operation risk of the transformer; and the situation that the sample oil enters the oil container too fast to cause the sample oil in the transformer to be insufficient can be avoided.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is a schematic sectional front view of a transformer according to a preferred embodiment of the present invention;
FIG. 2 is a cross-sectional front view of the mounting valve seat of FIG. 1;
FIG. 3 is a cross-sectional front view of the oil extraction valve cartridge of FIG. 1;
fig. 4 is a sectional front view of the first protection tube 51 in fig. 1.
Description of the figures
10. An oil taking joint; 20. installing a valve seat; 201. installing a channel; 21. a connecting cylinder; 22. mounting the cylinder; 220. an inner limiting step; 30. an oil extraction valve core; 301. an oil outlet channel; 302. an overhanging end; 303. a butting end; 304. an outer limit step; 305. mounting a ring groove; 306. an axial oil inlet hole; 307. a radial oil inlet hole; 308. a card slot; 31. a valve core body; 311. a second connection section; 312. a second guide section; 313. a butting section; 314. an overhanging section; 32. an oil receiving nozzle; 40. a sealing ball; 51. a first protective cylinder; 60. a first seal ring member; 70. an oil container.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways, which are defined and covered below.
Referring to fig. 1, the preferred embodiment of the utility model provides an oil frock is got to mutual-inductor, including being used for the installation disk seat 20 of the detachable connection of the oil connector 10 of getting with the transformer, be equipped with the installation passageway 201 who link up installation disk seat 20 along the axial in the installation disk seat 20, be equipped with in the installation passageway 201 and get oil valve core 30, it link up the oil outlet channel 301 who gets oil valve core 30 along the axial to get to be equipped with in the oil valve core 30, the top of getting oil valve core 30 is supported end 303 and is used for and sealed 40 top of getting oil connector 10 oil feed end and supports, the overhanging end 302 of getting oil valve core 30 extends installation passageway 201, and overhanging end 302 is used for the removable connection with splendid attire oily utensil 70 of splendid attire appearance oil, so that the appearance oil that introduces oil outlet channel 301. The oil extraction valve core 30 is used for sliding towards the direction close to the sealing ball 40 under the action of the acting force exerted on the overhanging end 302, so that the abutting end 303 jacks the sealing ball 40, and the oil extraction joint 10 is communicated with the oil outlet channel 301, and the oil extraction valve core 30 is also used for sliding towards the direction far away from the sealing ball 40 under the action of the acting force exerted on the overhanging end 302, so that the abutting end 303 loosens the sealing ball 40, and the sealing ball 40 reseals the oil inlet end of the oil extraction joint 10 under the action of pressure. The mutual inductor oil taking tool further comprises a protection sleeve set used for sealing and protecting the installation valve seat 20 and the oil taking valve core 30, and the protection sleeve set is sleeved outside the installation valve seat 20 and is detachably connected with the installation valve seat 20.
When the transformer oil taking tool is used for extracting sample oil in a transformer, firstly, the protective sleeve set is taken down from the installation valve seat 20 to expose the installation valve seat 20 and the oil taking valve core 30, and then the installation valve seat 20 is fixedly connected with the oil taking connector 10 of the transformer; when sampling oil, firstly, the oil container 70 is fixedly connected with the outward extending end 302 of the oil extraction valve core 30, then the outward extending end 302 of the oil extraction valve core 30 is forced to make the oil extraction valve core 30 slide towards the direction close to the sealing ball 40 along the installation channel 201, in the sliding process of the oil extraction valve core 30, the abutting end 303 abuts against the sealing ball 40 and pushes the sealing ball 40 away from the oil inlet end of the oil extraction joint 10 in the continuous sliding process, the oil extraction joint 10 is communicated with the oil outlet channel 301, sample oil in a transformer enters the oil outlet channel 301 from the oil extraction joint 10, then enters the oil container 70 from the oil outlet channel 301, and further the extraction operation of the sample oil is completed; after the sample oil amount in the oil container 70 meets the requirement, the outward extending end 302 of the oil taking valve core 30 is applied to make the oil taking valve core 30 slide along the installation channel 201 in the direction far away from the sealing ball 40, in the sliding process of the oil taking valve core 30, the abutting end 303 is separated from the sealing ball 40, the sealing ball 40 reseals the oil inlet end of the oil taking joint 10 under the action of pressure, and the oil taking joint 10 is disconnected from the oil outlet channel 301; after the sample oil in the oil outlet channel 301 completely flows into the oil container 70, the oil container 70 is taken down from the oil-taking valve core 30, and then the protection sleeve set is sleeved on the installation valve seat 20 again, or the installation valve seat 20 is firstly taken down from the oil-taking connector 10 and then the protection sleeve set is sleeved on the installation valve seat 20 again, so that one oil sampling operation is completed.
When the mutual inductor oil taking tool is adopted, no additional operating tool is needed, and the whole oil sampling process only needs to apply force to enable the oil taking valve core 30 to slide forwards and backwards, so that the operation is simple and convenient, and the difficulty of oil taking operation of oil taking operators is greatly reduced; compared with the prior art that the oil is taken from the oil drain valve which is externally installed, the mutual inductor oil taking tool of the utility model comprises the protective sleeve group which is used for sealing and protecting the installation valve seat 20 and the oil taking valve core 30, thereby effectively avoiding the reduction of the working quality and the difficulty of oil taking operation caused by the common working conditions of cold weather and oil on hand, and simultaneously effectively avoiding the hidden trouble caused by thread slipping, and by arranging the protective sleeve group, the outer seal is used for the oil extraction tool when the oil extraction tool does not need to sample oil, so as to prevent dust, impurities and the like from entering the oil extraction tool or the transformer, and because the protective sleeve set can carry out sealing protection on the oil taking tool, the sample oil in the transformer can be effectively prevented from being exposed, because the sample oil in the transformer is less, the problem that the transformer cannot work normally due to sample oil leakage can be avoided, the service life of the oil taking tool can be prolonged, and the operation risk of the transformer is reduced; because the oil outlet channel 301 is in a disconnected state when the oil container 70 is connected with the oil taking valve core 30, sample oil in the transformer cannot be sprayed out when an oil taking operator connects the oil container 70 with the oil taking valve core 30, so that inconvenience is not brought to oil taking work, and the oil taking operator cannot generate a conflict emotion due to sample oil spraying; the oil taking valve core 30 gradually pushes the sealing ball open under the action of external force, so that the oil outlet channel 301 is gradually communicated with the oil taking connector 10, and the amount of sample oil in the transformer is often small, so that the sample oil in the transformer can slowly flow out of the oil outlet channel 301 by controlling the sliding speed and the sliding process of the oil taking valve core 30 and then slowly enter the oil container 70, and the situation that the sample oil in the transformer is insufficient due to the fact that the sample oil enters the oil container 70 at an excessively high speed is avoided; the utility model discloses a mutual-inductor gets oily frock is small, simple structure, cost of manufacture are low and the operation is reliable.
Alternatively, as shown in fig. 1 and 2, the mounting valve seat 20 is a hollow cylinder, and includes a connecting cylinder 21 and a mounting cylinder 22 connected in an axial direction, a first internal thread is formed on an inner peripheral wall of the connecting cylinder 21, and a second internal thread is formed on an inner peripheral wall of the mounting cylinder 22. Get and to process on the periphery wall of oil joint 10 and have first external screw thread, installation disk seat 20 passes through connecting cylinder 21 suit on the excircle of getting oil joint 10, and installation disk seat 20 passes through the cooperation of the first internal thread on the connecting cylinder 21 and the first external screw thread on getting oil joint 10 in order to realize with get oil joint 10 detachable and be connected. Preferably, not shown, an inner concave mounting groove is formed on the outer circle of the oil taking connector 10, a sealing ring member is arranged in the mounting groove, and the sealing ring member is used for sealing the gap between the mounting valve seat 20 and the oil taking connector 10 and preventing sample oil from leaking through the gap between the oil taking connector 10 and the mounting valve seat 20; or, a sealing gasket is arranged between the oil taking connector 10 and the bottom of the inner cavity of the connecting cylinder 21 to realize the sealing of the connecting part, and the flow of the control valve for opening and closing the oil taking valve core 30 by pushing the sealing ball 40 is adjusted by adjusting the thickness of the sealing gasket. Specifically, the seal ring member is a seal ring. The outer peripheral wall of the oil taking valve core 30 is provided with a second external thread, the oil taking valve core 30 is detachably arranged in the installation channel 201 through the matching of the second external thread on the outer peripheral wall and a second internal thread on the inner peripheral wall of the installation cylinder 22 of the installation valve seat 20, the connection of the oil taking valve core 30 and the installation valve seat 20 is simple, and the installation, the detachment and the cleaning of the oil taking valve core 30 are convenient.
In this alternative, as shown in fig. 1 and 2, the mounting cylinder 22 includes a first connecting section and a first guiding section that are connected along the axial direction, the second internal thread is processed on the inner peripheral wall of the first connecting section, and the connection between the first connecting section and the first guiding section forms an inner concave and annular inner limiting step 220. The oil extraction valve core 30 comprises a valve core body 31, the valve core body 31 comprises a second connecting section 311 which is matched with the first connecting section, and a second guiding section 312 which is matched with the first guiding section, and the axial sliding of the oil extraction valve core 30 along the installation channel 201 is guided through the matching of the second guiding section 312 and the first guiding section. A second external thread is processed on the peripheral wall of the second connecting section 311, an outer convex annular outer limiting step 304 is formed at the joint of the second connecting section 311 and the second guide section 312, and the oil taking valve core 30 is limited along the axial direction of the installation channel 201 by the abutting of the outer limiting step 304 and the inner limiting step 220. When oil is taken out, the valve core body 31 is rotated by applying force, the valve core body 31 slides back and forth along the axial direction of the installation channel 201 through the matching of the second external thread on the valve core body 31 and the second internal thread in the installation valve seat 20, the operation is simple, and the sliding of the valve core body 31 is accurate and reliable. Preferably, as shown in fig. 1 and 3, the outer peripheral wall of the second guide section 312 is provided with a concave and annular mounting ring groove 305, a first sealing ring member 60 for sealing a gap between the valve body 31 and the mounting passage 201 is mounted in the mounting ring groove 305, and the first sealing ring member 60 is used for preventing sample oil from leaking from the gap between the valve body 31 and the mounting passage 201. Specifically, the first seal ring member 60 is a seal ring, and the seal ring does not affect the sliding of the valve core body 31 while sealing the gap between the valve core body 31 and the installation passage 201, and has reliable sealing and high wear resistance.
Optionally, as shown in fig. 1 and fig. 3, the valve core body 31 further includes a propping section 313 connected to the second connecting section 311, an end surface of the propping section 313 is provided with an inward propping groove, the propping groove is a spherical groove matched with a spherical surface of the sealing ball 40, and the valve core body 31 stably props the sealing ball 40 through the cooperation of the propping groove and the sealing ball 40, so as to prevent the sealing ball 40 from slipping when the valve core body 31 props the sealing ball 40, thereby affecting the conduction effect between the oil taking connector 10 and the oil outlet channel 301. Further, as shown in fig. 3, the end surface of the abutting section 313 is further provided with a plurality of concave axial oil inlets 306, the plurality of axial oil inlets 306 are sequentially arranged outside the abutting groove at intervals along the circumferential direction of the abutting groove, and each axial oil inlet 306 is respectively communicated with the oil outlet channel 301, so that sample oil in the transformer can uniformly enter the oil outlet channel 301 through the axial oil inlet 306.
Preferably, as shown in fig. 3, a plurality of recessed radial oil inlet holes 307 for assisting the oil inlet of the axial oil inlet hole 306 are formed in the outer peripheral wall of the abutting section 313, the plurality of radial oil inlet holes 307 are sequentially arranged at intervals along the circumferential direction of the abutting section 313, and each radial oil inlet hole 307 is respectively communicated with the oil outlet channel 301. Through set up the radial inlet port 307 with play oil channel 301 intercommunication on the periphery wall of section 313 is supported on the top for supplementary axial inlet port 306 makes the appearance oil in the transformer get into in the passageway 301 of producing oil by radial inlet port 307 simultaneously, improves the oil feed rate of passageway 301 of producing oil, and prevents to appear that valve core body 31 from pushing up inclined to one side ball sealer 40 makes axial inlet port 306 block up and then leads to the obstructed situation of the passageway 301 oil feed of producing oil.
Optionally, as shown in fig. 1 and fig. 3, the valve plug body 31 further includes an extending section 314 extending out of the installation channel 201 and connected to the second guiding section 312, and an outer diameter of the extending section 314 is larger than an outer diameter of the second guiding section 312, so as to prevent the valve plug body 31 from completely entering the installation channel 201 due to improper operation, thereby improving the reliability of sliding of the valve plug body 31; knurling for preventing the holding from slipping is processed on the excircle of the overhanging section 314, or a concave and annular clamping groove 308 is processed on the excircle of the overhanging section 314. When the oil taking tool needs to be detached from the oil taking connector 10 to be taken away after oil taking is completed at each time, a soft protective film for protection needs to be coated outside the oil taking tool, such as a plastic film and the like, in order to tightly wrap the oil taking tool by the soft protective film, an elastic ring fixing protective film needs to be tightly hooped on the soft protective film, at the moment, the clamping groove 308 is formed in the outer circle of the extending section 314, the elastic ring is conveniently clamped in the clamping groove 308, the stress position of the elastic ring is prevented from being changed, meanwhile, the clamping groove 308 can also be used for being clamped by a hand of a person, the valve core body 31 is prevented from being rotated and slipping, and the reliability of rotation of the.
Preferably, not shown in the figure, the oil outlet channel 301 comprises a flow guiding section and an oil outlet section which are connected in the axial direction, the inner diameter of the oil outlet section is larger than that of the flow guiding section, and the inner diameter of the oil outlet section is gradually increased along the flowing direction of the sample oil. The internal diameter of the oil outlet section is larger than that of the drainage section, so that the oil outlet channel 301 can be conveniently processed. Because the axis setting of oil outlet channel 301 along case body 31, when the internal diameter of the section of producing oil increases along appearance oil flow direction gradually, then the relative central axis of the interior perisporium of the section of producing oil outlet channel 301 squints downwards gradually, and then when getting oil joint 10 and oil outlet channel 301 disconnection, the appearance oil that is detained in the channel of producing oil 301 can be fast, all flow into in flourishing oily utensil 70, prevent when getting oil frock by getting oil joint 10 and taking off, the appearance oil that is detained in the channel of producing oil 301 pollutes the environment and gets oil operating personnel, and reduce the waste of appearance oil.
Preferably, as shown in fig. 1, the oil-taking valve core 30 further includes a plurality of oil-receiving nozzles 32, and the plurality of oil-receiving nozzles 32 are different in size and type. Each oil receiving nozzle 32 is detachably connected with the oil outlet end of the valve core body 31 and is communicated with the oil outlet channel 301, a control valve for controlling the on-off of the correspondingly arranged oil receiving nozzle 32 is arranged on each oil receiving nozzle 32, and a connecting structure detachably connected with the oil container 70 to be matched and connected is arranged on the peripheral wall of each oil receiving nozzle 32. The plurality of oil receiving nozzles 32 are different in size and model, so that the oil taking tool is convenient to connect with the oil containers 70 of different sizes and models. The outer peripheral wall of each oil receiving nozzle 32 is provided with a connecting structure detachably connected with the oil container 70 to be matched and connected, and the connecting structure can be an external thread, an interference fit connection and the like.
Optionally, not shown in the drawings, the utility model discloses a first embodiment of mutual-inductor frock of getting oil, the utility model discloses a frock of getting oil connect 10 all the time in getting, the protection suit includes a first protection section of thick bamboo 51, and a first protection section of thick bamboo 51 is one end opening, one end confined hollow tube-shape, as shown in fig. 4. A third external thread is processed on the outer circle of the connecting cylinder 21, a third internal thread matched with the third external thread on the outer circle of the connecting cylinder 21 is arranged on the inner peripheral wall of the opening end of the first protective cylinder 51, the first protective cylinder 51 is sleeved on the outer circle of the connecting cylinder 21, and the third internal thread is matched with the third external thread on the outer circle of the connecting cylinder 21 to be detachably connected with the oil taking connector 10. Or the excircle of the connecting cylinder 21 is processed with a first annular groove which is concave and annular, a second sealing ring is arranged in the first annular groove, the excircle of the connecting cylinder 21 is also provided with a first annular limiting step, the second sealing ring is used for deforming in the process of sleeving the connecting cylinder 21 at the opening end of the first protective cylinder 51 so as to realize the sealing of the connecting position, the first protective cylinder 51 is detachably connected with the connecting cylinder 21, and the first limiting step is used for abutting against a seam allowance on the inner peripheral wall of the opening end of the first protective cylinder 51 so as to limit the axial position of the first protective cylinder 51 which is installed in the connecting cylinder 21. Specifically, the second seal ring member is a butyronitrile seal ring, and since the first protective cylinder 51 is clamped on the outer circle of the connecting cylinder 21 through the deformation of the second seal ring member and the first protective cylinder 51 is rubbed with the second seal ring member when being loaded into the connecting cylinder 21, when the second seal ring member adopts the butyronitrile seal ring, the butyronitrile seal ring is not easy to wear and tear, so that the assembly effect of the first protective cylinder 51 is prevented from being influenced, and the deformation is large so that the first protective cylinder 51 can be loaded.
Optionally, not shown in the drawings, the utility model discloses the second embodiment of mutual-inductor oily frock, the utility model discloses a take off the save by getting on the oil connector 10 after the oily frock of getting a sample oil, the protection suit is including relative first protection section of thick bamboo 51 and the second protection section of thick bamboo that sets up, and first protection section of thick bamboo 51 and second protection section of thick bamboo all are one end opening, one end confined hollow tube-shape, as shown in fig. 4. The excircle of connecting cylinder 21 is processed and is had the third external screw thread, is equipped with the third internal thread that matches respectively with the third external screw thread on the excircle of connecting cylinder 21 on the internal perisporium of both open ends of first protection section of thick bamboo 51 and second protection section of thick bamboo respectively, and first protection section of thick bamboo 51 and second protection section of thick bamboo suit are relative on the excircle of connecting cylinder 21, and respectively through the cooperation of its third internal thread and the third external screw thread on the excircle of connecting cylinder 21 with get the detachable connection of oil nipple 10. Or
The excircle of the connecting cylinder 21 is provided with a first annular groove and a second annular groove which are concave and annular, the first annular groove and the second annular groove are arranged at intervals along the axial direction, a second sealing ring piece is arranged in the first annular groove, a third sealing ring piece is arranged in the second annular groove, a first limiting step and a second limiting step which are annular are further arranged on the excircle of the connecting cylinder 21, the first limiting step and the second limiting step are arranged at intervals along the axial direction, and the first limiting step and the second limiting step are positioned between the first annular groove and the second annular groove. The second sealing ring piece is used for deforming in the process that the open end of the first protective barrel 51 is sleeved into the connecting barrel 21 from the outward extending end 302 of the oil extraction valve core 30 to realize sealing of the connecting position, the first protective barrel 51 is detachably connected with the connecting barrel 21, and the first limiting step is used for abutting against a seam allowance on the inner peripheral wall of the open end of the first protective barrel 51 to limit the axial position of the first protective barrel 51 which is installed into the connecting barrel 21. The third sealing ring piece is used for deforming in the process that the open end of the second protective cylinder is sleeved into the connecting cylinder 21 through the abutting end 303 of the oil taking valve core 30 to realize the sealing of the connecting position, the second protective cylinder is detachably connected with the connecting cylinder 21, and the second limiting step is used for abutting against a seam allowance on the inner peripheral wall of the open end of the second protective cylinder to limit the axial position of the second protective cylinder in the connecting cylinder 21. Specifically, the second seal ring member is a butyronitrile seal ring, because the first protective cylinder 51 is clamped on the outer circle of the connecting cylinder 21 through the deformation of the second seal ring member, and the first protective cylinder 51 is rubbed with the second seal ring member when being loaded into the connecting cylinder 21, when the second seal ring member is the butyronitrile seal ring, the butyronitrile seal ring is not easy to wear, so that the assembly effect of the first protective cylinder 51 is prevented from being influenced, and the deformation is large so that the first protective cylinder 51 can be loaded; similarly, the third seal ring member is also a butyronitrile seal ring, and the function and effect of the third seal ring member are the same as those of the second seal ring member, so that the description is not repeated.
Referring to fig. 1, the preferred embodiment of the present invention further provides a transformer, which includes an oil extraction joint 10, and the outer circle of the oil extraction joint 10 is detachably connected with an oil extraction tool of any one of the above-mentioned transformers. Because the outer circle of the oil taking connector 10 is detachably connected with the mutual inductor oil taking tool, the transformer oil taking device is simple and convenient to operate, and the difficulty of oil taking operation of an oil taking operator can be greatly reduced; the device can effectively avoid the problems of reduced working quality and difficult oil taking operation caused by common working conditions such as cold weather and oil on hands, also effectively avoid the hidden danger caused by thread slipping, prevent dust, impurities and the like from entering an oil taking tool or a transformer, prevent sample oil in the transformer from being exposed, prolong the service life of the oil taking tool and reduce the operation risk of the transformer; and the situation that the sample oil enters the oil container 70 at an excessively high speed so that the sample oil in the transformer is insufficient can be avoided.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An oil taking tool for a mutual inductor is characterized in that,
the oil sampling device comprises a mounting valve seat (20) detachably connected with an oil sampling connector (10) of a transformer, wherein a mounting channel (201) axially penetrating through the mounting valve seat (20) is arranged in the mounting valve seat (20), an oil sampling valve core (30) is arranged in the mounting channel (201), an oil outlet channel (301) axially penetrating through the oil sampling valve core (30) is arranged in the oil sampling valve core (30), a butting end (303) of the oil sampling valve core (30) is used for butting against a sealing ball (40) sealing the oil inlet end of the oil sampling connector (10), an extending end (302) of the oil sampling valve core (30) extends out of the mounting channel (201), and the extending end (302) is detachably connected with an oil container (70) containing sample oil so that the sample oil introduced into the oil outlet channel (301) enters the oil container;
the oil extraction valve core (30) is used for sliding towards the direction close to the sealing ball (40) under the action of acting force exerted on the overhanging end (302) so that the abutting end (303) jacks the sealing ball (40) to further enable the oil extraction joint (10) to be communicated with the oil outlet channel (301), and the oil extraction valve core (30) is also used for sliding towards the direction away from the sealing ball (40) under the action of acting force exerted on the overhanging end (302) so that the abutting end (303) loosens the sealing ball (40) to further enable the sealing ball (40) to reseal the oil inlet end of the oil extraction joint (10) under the action of pressure;
the mutual inductor oil taking tool further comprises a protection sleeve set used for sealing and protecting the installation valve seat (20) and the oil taking valve core (30), and the protection sleeve set is sleeved outside the installation valve seat (20) and detachably connected with the installation valve seat (20).
2. The mutual inductor oil pumping tool according to claim 1,
the mounting valve seat (20) is in a hollow cylinder shape and comprises a connecting cylinder (21) and a mounting cylinder (22) which are connected along the axial direction, a first internal thread is processed on the inner peripheral wall of the connecting cylinder (21), and a second internal thread is processed on the inner peripheral wall of the mounting cylinder (22);
a first external thread is processed on the peripheral wall of the oil taking connector (10), the mounting valve seat (20) is sleeved on the excircle of the oil taking connector (10) through the connecting cylinder (21), and the mounting valve seat (20) is detachably connected with the oil taking connector (10) through the matching of the first internal thread on the connecting cylinder (21) and the first external thread on the oil taking connector (10);
the outer peripheral wall of the oil taking valve core (30) is provided with second external threads, and the oil taking valve core (30) is detachably arranged in the installation channel (201) through the matching of the second external threads on the outer peripheral wall of the oil taking valve core and the second internal threads on the inner peripheral wall of the installation cylinder (22) of the installation valve seat (20).
3. The mutual inductor oil pumping tool according to claim 2,
the mounting cylinder (22) comprises a first connecting section and a first guiding section which are connected along the axial direction, the second internal thread is processed on the inner peripheral wall of the first connecting section, and a concave and annular inner limiting step (220) is formed at the connecting position of the first connecting section and the first guiding section;
the oil extraction valve core (30) comprises a valve core body (31), and the valve core body (31) comprises a second connecting section (311) matched with the first connecting section and a second guiding section (312) matched with the first guiding section;
the outer peripheral wall of the second connecting section (311) is provided with the second external thread, a convex annular outer limiting step (304) is formed at the joint of the second connecting section (311) and the second guide section (312), and the oil taking valve core (30) is limited along the axial direction of the mounting channel (201) through the propping of the outer limiting step (304) and the inner limiting step (220);
be equipped with the indent on the periphery wall of second direction section (312) and be annular installation ring groove (305), install in installation ring groove (305) and be used for sealing case body (31) with first sealing ring spare (60) in clearance between installation passageway (201).
4. The mutual inductor oil pumping tool according to claim 3,
the valve core body (31) further comprises a propping section (313) connected with the second connecting section (311), an inward propping groove is formed in the end face of the propping section (313), the propping groove is a spherical groove matched with the spherical surface of the sealing ball (40), and the valve core body (31) stably props against the sealing ball (40) through the matching of the propping groove and the sealing ball (40);
the end face of the abutting section (313) is further provided with a plurality of inwards concave axial oil inlet holes (306), the axial oil inlet holes (306) are sequentially distributed outside the abutting groove at intervals along the circumferential direction of the abutting groove, and the axial oil inlet holes (306) are respectively communicated with the oil outlet channel (301).
5. The mutual inductor oil pumping tool according to claim 4,
the outer peripheral wall of the abutting section (313) is provided with a plurality of radial oil inlet holes (307) which are concave and used for assisting the axial oil inlet holes (306) in feeding oil, the plurality of radial oil inlet holes (307) are sequentially arranged at intervals along the circumferential direction of the abutting section (313), and the radial oil inlet holes (307) are respectively communicated with the oil outlet channel (301).
6. The mutual inductor oil pumping tool according to claim 4,
the valve core body (31) further comprises an outward extending section (314) extending out of the mounting channel (201) and connected with the second guide section (312), the outer diameter of the outward extending section (314) is larger than that of the second guide section (312), knurling for preventing holding and slipping is processed on the outer circle of the outward extending section (314), or a concave and annular clamping groove (308) is processed on the outer circle of the outward extending section (314);
the oil outlet channel (301) comprises a drainage section and an oil outlet section which are connected along the axial direction, the inner diameter of the oil outlet section is larger than that of the drainage section, and the inner diameter of the oil outlet section is gradually increased along the flowing direction of sample oil.
7. The mutual inductor oil pumping tool according to claim 3,
the oil taking valve core (30) further comprises a plurality of oil receiving nozzles (32), and the sizes and the types of the oil receiving nozzles (32) are different;
each oil receiving nozzle (32) is detachably connected with the oil outlet end of the valve core body (31) and is communicated with the oil outlet channel (301), a control valve for controlling the on-off of the correspondingly arranged oil receiving nozzle (32) is arranged on each oil receiving nozzle (32), and a connecting structure detachably connected with the oil container to be matched and connected is arranged on the peripheral wall of each oil receiving nozzle (32).
8. The mutual inductor oil pumping tool according to claim 2,
the protective sleeve set comprises a first protective cylinder, and the first protective cylinder is in a hollow cylinder shape with one open end and one closed end;
a third external thread is processed on the excircle of the connecting cylinder (21), and a third internal thread matched with the third external thread on the excircle of the connecting cylinder (21) is arranged on the inner peripheral wall of the opening end of the first protective cylinder; or
The outer circle of the connecting cylinder (21) is machined with a first annular groove which is concave and annular, a second sealing ring is arranged in the first annular groove, a first annular limiting step is further arranged on the outer circle of the connecting cylinder (21), the second sealing ring is used for enabling the open end of the first protective cylinder to be sleeved into the connecting cylinder (21) to deform in the process of connecting position sealing, the first protective cylinder is detachably connected with the connecting cylinder (21), and the first limiting step is used for abutting against a seam allowance on the inner peripheral wall of the open end of the first protective cylinder so as to limit the axial position of the connecting cylinder (21) when the first protective cylinder is installed.
9. The mutual inductor oil pumping tool according to claim 2,
the protective sleeve set comprises a first protective barrel and a second protective barrel which are oppositely arranged, and the first protective barrel and the second protective barrel are both in a hollow barrel shape with an opening at one end and a closed end;
third external threads are processed on the excircle of the connecting cylinder (21), and third internal threads matched with the third external threads on the excircle of the connecting cylinder (21) are respectively arranged on the inner peripheral walls of the opening ends of the first protective cylinder and the second protective cylinder; or
The outer circle of the connecting cylinder (21) is provided with a first annular groove and a second annular groove which are concave and annular, the first annular groove and the second annular groove are arranged at intervals along the axial direction, a second sealing ring piece is arranged in the first annular groove, a third sealing ring piece is arranged in the second annular groove, a first limiting step and a second limiting step which are annular are further arranged on the outer circle of the connecting cylinder (21), the first limiting step and the second limiting step are arranged at intervals along the axial direction, and the first limiting step and the second limiting step are positioned between the first annular groove and the second annular groove;
the second sealing ring piece is used for deforming in the process that the open end of the first protective cylinder is sleeved into the connecting cylinder (21) from the outward extending end (302) of the oil extraction valve core (30) to realize sealing of a connecting position, the first protective cylinder is detachably connected with the connecting cylinder (21), and the first limiting step is used for abutting against a spigot on the inner peripheral wall of the open end of the first protective cylinder to limit the axial position of the first protective cylinder installed into the connecting cylinder (21);
the third sealing ring piece is used for deforming in the process that the open end of the second protective cylinder is sleeved into the connecting cylinder (21) through the abutting end (303) of the oil taking valve core (30) to realize sealing of a connecting position, the second protective cylinder is detachably connected with the connecting cylinder (21), and the second limiting step is used for abutting against a spigot on the inner peripheral wall of the open end of the second protective cylinder to limit the axial position of the second protective cylinder, which is installed into the connecting cylinder (21).
10. A transformer, characterized by comprising an oil taking connector (10), wherein the outer circle of the oil taking connector (10) is detachably connected with the mutual inductor oil taking tool as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921442141.3U CN210719795U (en) | 2019-08-30 | 2019-08-30 | Mutual inductor oil taking tool and transformer with same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921442141.3U CN210719795U (en) | 2019-08-30 | 2019-08-30 | Mutual inductor oil taking tool and transformer with same |
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| CN210719795U true CN210719795U (en) | 2020-06-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110530673A (en) * | 2019-08-30 | 2019-12-03 | 湖南华电云通电力技术有限公司 | Mutual inductor takes oily tooling and the transformer with it |
| CN111982598A (en) * | 2020-08-26 | 2020-11-24 | 国网安徽省电力有限公司亳州供电公司 | Transformer tap switch oil chamber sampling device and sampling method |
-
2019
- 2019-08-30 CN CN201921442141.3U patent/CN210719795U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110530673A (en) * | 2019-08-30 | 2019-12-03 | 湖南华电云通电力技术有限公司 | Mutual inductor takes oily tooling and the transformer with it |
| CN110530673B (en) * | 2019-08-30 | 2024-01-30 | 湖南华电云通电力技术有限公司 | Transformer oil extraction tool and transformer with same |
| CN111982598A (en) * | 2020-08-26 | 2020-11-24 | 国网安徽省电力有限公司亳州供电公司 | Transformer tap switch oil chamber sampling device and sampling method |
| CN111982598B (en) * | 2020-08-26 | 2022-12-06 | 国网安徽省电力有限公司亳州供电公司 | Transformer tap switch oil chamber sampling device and sampling method |
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