CN114267970B - Grounding device of oil immersed transformer - Google Patents
Grounding device of oil immersed transformer Download PDFInfo
- Publication number
- CN114267970B CN114267970B CN202210000536.8A CN202210000536A CN114267970B CN 114267970 B CN114267970 B CN 114267970B CN 202210000536 A CN202210000536 A CN 202210000536A CN 114267970 B CN114267970 B CN 114267970B
- Authority
- CN
- China
- Prior art keywords
- lead
- piston
- fixedly connected
- grounding
- immersed transformer
- 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.)
- Active
Links
- 239000007788 liquid Substances 0.000 claims abstract description 29
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 239000004020 conductor Substances 0.000 claims abstract description 16
- 210000005239 tubule Anatomy 0.000 claims abstract description 13
- 239000012267 brine Substances 0.000 claims abstract description 11
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims abstract description 11
- 230000001681 protective effect Effects 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 150000003839 salts Chemical class 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 238000000926 separation method Methods 0.000 abstract description 15
- 239000002689 soil Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 7
- 230000000712 assembly Effects 0.000 abstract description 5
- 238000000429 assembly Methods 0.000 abstract description 5
- 230000009471 action Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 9
- 239000011780 sodium chloride Substances 0.000 description 9
- 230000008878 coupling Effects 0.000 description 8
- 238000010168 coupling process Methods 0.000 description 8
- 238000005859 coupling reaction Methods 0.000 description 8
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Abstract
The invention discloses a grounding device of an oil immersed transformer, which comprises: the transformer comprises a bottom plate and an oil immersed transformer arranged on the bottom plate, wherein a grounding lead is arranged at the bottom of the oil immersed transformer in an extending mode, a lead box is arranged outside the grounding lead, a lead adjusting mechanism for the grounding lead is further arranged inside the lead box, and a plurality of grounding conductor assemblies are arranged on the lower end face of the bottom plate. According to the invention, the first driving device is started and is utilized to act on the plurality of piston rods simultaneously, so that each piston rod drives the piston head matched with the piston rod to perform piston motion in the liquid separation piston cylinder, and brine in the brine storage box can be split into the liquid separation piston cylinder through the plurality of drainage tubules, so that a secondary brine replenishing action is realized; and in time evenly pour into the soil of earthing pole department into through a plurality of weeping branch pipes with the brine in the branch liquid piston cylinder, increase the conductive properties of soil, guarantee earthing device's normal conductive effect, prolonged the earth life of distribution network.
Description
Technical Field
The invention relates to the technical field of oil-immersed transformers, in particular to a grounding device of an oil-immersed transformer.
Background
The oil immersed transformer is a novel high-performance transformer with more reasonable structure and better performance, and the three core columns of the three-dimensional rolled iron core are arranged in an equilateral triangle, so that air gaps are avoided in magnetic circuits, the winding is tighter, the lengths of the three magnetic circuits are consistent, the three magnetic circuits are shortest, the cross section area of the core column of the iron core is more similar to a circle, therefore, the performance is further improved, the loss is reduced, the noise is reduced, three items are balanced, and the third harmonic component is reduced.
Because the oil-immersed transformer converts high voltage into low voltage, it is very important to prevent electric leakage, and the grounding device is installed to ground in addition to protecting the outside of the oil-immersed transformer, so that electricity can be led into the ground to avoid hurting people, but the grounding device of the existing oil-immersed transformer has the following problems in actual use; 1. after the conventional oil immersed transformer grounding resistor is used for a long time, the conductivity of soil is gradually weakened, the grounding resistor is increased again, the use effect is poor, and the safety performance is low; 2. the existing oil immersed transformer has less reserved redundancy of the grounding lead, and if an unexpected factor occurs, the grounding lead is easy to tear off, so that the grounding is failed, and safety hazard is caused.
Disclosure of Invention
The invention aims to provide a grounding device for an oil-immersed transformer capable of enhancing the ground conductivity so as to solve the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an oil-immersed transformer's earthing device, includes the bottom plate and sets up the oil-immersed transformer on the bottom plate, oil-immersed transformer's bottom extension is provided with the ground lead, the outside of ground lead is provided with the lead box, on lead box and the equal fixed connection bottom plate of oil-immersed transformer, the inside lead adjustment mechanism that is used for the ground lead that still is provided with of lead box, the lower terminal surface of bottom plate is provided with many grounding conductor assemblies, grounding conductor assembly mainly includes the connection conducting ring, and the periphery fixedly connected with many reposition of redundant personnel poles of connection conducting ring, and the equal fixed connection cone in the bottom of every reposition of redundant personnel pole equal fixed connection a set of vertical conducting rod, and the outside cover of vertical conducting rod is equipped with the protection urceolus, the fixed bottom that sets up at the bottom plate of protection urceolus still is provided with auxiliary conductive mechanism on the protection urceolus, auxiliary conductive mechanism includes a plurality of salt water storage box, the setting is at the up end of bottom plate, and every divides liquid piston section of thick bamboo all to cooperate and use liquid branch pipe, piston head piston section of thick bamboo, drainage, tubule and piston rod.
Preferably, the grounding conductor assembly and the auxiliary conductive mechanism are both arranged at least four groups and distributed in a horizontal annular array, an annular cavity for accommodating the connecting conductive ring is formed in the bottom plate, a plurality of rectangular long grooves for accommodating the shunt rods are radially formed in the periphery of the annular cavity, one end of the grounding lead, far away from the oil-immersed transformer, penetrates through the lead box and stretches into the annular cavity to be fixedly connected with the connecting conductive ring, and one end of the vertical conductive rod, far away from the shunt rods, penetrates through the protection outer cylinder and is fixedly connected with the cone.
Preferably, the liquid separation piston cylinder that is not less than four sets of through the fixed branch liquid piston cylinder that is provided with of U-shaped fastener on the protection urceolus inside wall, the one end that every group liquid piston cylinder is close to the protection urceolus inside wall all is the linear distribution and has not less than six weeping branch pipes, every weeping branch pipe runs through the interlude and establishes on the protection urceolus side wall, and the inside of weeping branch pipe is provided with No. two check valves, drainage tubule one end is fixed to be inserted and is established in the bottom of brine storage box, the other end of drainage tubule stretches into the inside of protection urceolus and is fixed to be inserted and establish in the bottom of liquid separation piston cylinder, and be provided with the check valve No. one on the drainage tubule.
Preferably, the upper end of the inner cavity of each liquid-separating piston cylinder is slidably provided with a piston head, one end of a piston rod is connected with a first driving device, the other end of the piston rod extends into the inner cavity of each liquid-separating piston cylinder and is fixedly connected with the piston head, an installation cavity positioned at the upper end of the annular cavity is formed in the bottom plate, the installation cavity is provided with the first driving device, the first driving device comprises a driving disc, the driving disc is rotatably installed in the installation cavity, the upper end face of the driving disc is provided with at least four inclined grooves, a poking column is inserted in each inclined groove, the upper end of each poking column is fixedly connected with a balancing block, and two groups of push rods are symmetrically arranged on the balancing block.
Preferably, one end of each push rod far away from the balance weight is provided with a group of vertical blocks, the bottoms of the two groups of vertical blocks are connected with a connecting ring together, the lower end of the connecting ring is fixedly connected with a plurality of piston rods, one end of each vertical block close to the balance weight is provided with a wedge-shaped groove, and the push rods are inserted in the wedge-shaped grooves and act on inclined planes of the wedge-shaped grooves.
Preferably, the central part of the driving disc is fixedly inserted with a rotating shaft, the upper end of the rotating shaft is fixedly connected with a spur gear, one side of the spur gear is connected with a rack in a meshed manner, and the rack is driven by a hydraulic cylinder to perform linear movement.
Preferably, the lead box is internally provided with an adjusting cavity, a lead adjusting mechanism is arranged in the adjusting cavity and comprises two groups of lead wheels which are vertically symmetrical and a group of wire pulling wheels, the two groups of lead wheels are rotatably arranged at the right end of the adjusting cavity, the wire pulling wheels are arranged between the two groups of lead wheels, the wire pulling wheels are rotatably arranged on a movable seat, and the movable seat is driven by a second driving device and linearly slides along the side wall of the adjusting cavity.
Preferably, the two sides of the movable seat are fixedly connected with a group of guide blocks, the side wall of the adjusting cavity is provided with a limiting long groove for accommodating the guide blocks, the guide blocks and the limiting long groove are of trapezoid structures, the second driving device comprises a nut seat and a screw rod, the nut seat is sleeved on the screw rod, and the bottom of the nut seat is fixedly connected with the upper end of the movable seat.
Preferably, one end of the screw is limited to rotate and is connected with a screw fixing seat, the screw fixing seat is fixedly connected with the top wall of the adjusting cavity, the other end of the screw penetrates through the left side wall of the lead box and is fixedly connected with a rotating wheel, one end of the screw, which is close to the rotating wheel, is externally sleeved with a fixing sleeve, the fixing sleeve is fixedly connected with the outer wall of the lead box, and a positioning screw which is abutted to the outer wall of the screw is further arranged on the fixing sleeve.
Compared with the prior art, the invention has the beneficial effects that:
1. after the device is used for a long time, the first driving device is started and used for acting on the plurality of piston rods simultaneously, so that each piston rod drives the piston head matched with the piston rod to move in the liquid separation piston cylinder, brine in the brine storage box can be split into the liquid separation piston cylinder through the plurality of drainage tubules, and a once brine replenishing action is realized; saline water in the liquid separation piston cylinder is evenly injected into soil at the grounding electrode through a plurality of liquid leakage branch pipes in time, so that the conductivity of the soil is improved, the normal conductive effect of the grounding device is ensured, and the grounding service life of the power distribution network is prolonged to a certain extent;
2. according to the invention, the connecting conducting ring is matched with the plurality of flow dividing rods, the vertical conducting rods and the cone for use, so that on one hand, the stress of the conducting points is uniformly distributed, and the current cannot be concentrated on one conductor, thereby achieving the effect of prolonging the service life of the device; on the other hand, the total grounding area is greatly increased, so that the grounding resistance is correspondingly reduced, and the overhaul frequency of an overhaul worker is reduced;
3. according to the invention, the two groups of wire wheels which are vertically symmetrical are arranged to be matched with the wire pulling wheel, so that the function of wiring the grounding wire can be realized, the reserved length of the grounding wire can be convenient to straighten the grounding wire in time while the actual requirement is met, the grounding wire is prevented from being randomly piled in the wire box, the occurrence probability of grounding failure caused by breaking the grounding wire due to unexpected factors is effectively reduced, and the safety performance of the grounding device is greatly improved.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a bottom view of the structure of the present invention;
FIG. 3 is a semi-sectional view of the structure of the present invention;
FIG. 4 is a schematic view of a grounding device according to the present invention;
FIG. 5 is a semi-sectional view of a grounding device of the present invention;
FIG. 6 is a semi-sectional view of a lead frame of the present invention;
FIG. 7 is a schematic view of the primary grounding member of the present invention;
FIG. 8 is a schematic view of a grounding conductor assembly of the present invention;
FIG. 9 is a schematic diagram illustrating the connection between the first driving device and the auxiliary conductive mechanism according to the present invention;
FIG. 10 is a cut-away elevation view of the protective outer barrel of the present invention;
fig. 11 is a cut-away rear view of the protective outer tub in the present invention.
In the figure: the bottom plate 1, the lead box 2, the lead wire wheel 201, the wire pulling wheel 202, the moving seat 203, the guide block 204, the nut seat 205, the lead screw 206, the fixed sleeve 207, the rotating wheel 208, the oil immersed transformer 3, the grounding lead wire 4, the connecting conductive ring 401, the shunt rod 402, the vertical conductive rod 403, the cone 404, the protective outer cylinder 5, the liquid leakage branch pipe 501, the liquid separation piston cylinder 502, the U-shaped clamping piece 503, the drainage tubule 504, the piston head 505, the piston rod 506, the saline storage box 6, the driving disc 7, the coupling ring 701, the vertical block 702, the wedge groove 703, the push rod 704, the balance block 705, the poking column 706, the limiting edge 707, the chute 708, the spur gear 709, the rack 7010 and the hydraulic cylinder 7011.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 11, the present invention provides a grounding device for an oil immersed transformer, which comprises: the oil immersed transformer comprises a bottom plate 1 and an oil immersed transformer 3 arranged on the bottom plate 1, wherein a grounding lead 4 is arranged at the bottom of the oil immersed transformer 3 in an extending mode, a lead box 2 is arranged outside the grounding lead 4, the upper end of the lead box 2 is in abutting connection with the oil immersed transformer 3, the lower end of the lead box 2 is fixedly connected with the bottom plate 1, four corners of the lower end of the oil immersed transformer 3 are fixedly connected with supporting feet, and the four supporting feet are fixedly connected on the bottom plate 1;
as shown in fig. 5 and 6, an adjusting cavity is provided inside the lead box 2, a lead adjusting mechanism is provided in the adjusting cavity, the lead adjusting mechanism includes two groups of wire wheels 201 which are vertically symmetrical and a group of wire wheels 202, the two groups of wire wheels 201 are rotatably mounted at the right end of the adjusting cavity, the wire wheels 202 are arranged between the two groups of wire wheels 201, the wire wheels 202 are rotatably mounted on a movable seat 203, and the movable seat 203 is driven by a second driving device and linearly slides along the side wall of the adjusting cavity. Through the cooperation of the two groups of wire wheels 20 which are vertically symmetrical and the wire pulling wheel 202, the ground lead 4 can play a role in wiring with a rule, so that the reserved length of the ground lead 4 can conveniently straighten the ground lead 4 in time while meeting actual requirements, the ground lead 4 is prevented from being randomly piled in the lead box 2, the occurrence probability of ground failure caused by tearing the ground lead due to unexpected factors is effectively reduced, and the safety performance of the ground device is greatly improved;
as shown in fig. 6, two sides of the moving seat 203 are fixedly connected with a group of guide blocks 204, the side wall of the adjusting cavity is provided with a limiting long groove for accommodating the guide blocks 204, the guide blocks 204 and the limiting long groove are both in a trapezoid structure, the second driving device comprises a nut seat 205 and a screw rod 206, the nut seat 205 is sleeved on the screw rod 206, and the bottom of the nut seat 205 is fixedly connected with the upper end of the moving seat 203. One end of the lead screw 206 is limited and rotationally connected with a lead screw fixing seat, the lead screw fixing seat is fixedly connected with the top wall of the adjusting cavity, the other end of the lead screw 206 penetrates through the left side wall of the lead screw box 2 and is fixedly connected with a rotating wheel 208, a fixing sleeve 207 is sleeved outside one end of the lead screw 206, which is close to the rotating wheel 208, the fixing sleeve 207 is fixedly connected with the outer wall of the lead screw box 2, and a positioning screw rod which is abutted against the outer wall of the lead screw 206 is further arranged on the fixing sleeve 207;
when the device is used, during installation of the grounding lead 4, the rotating wheel 208 is held by hand to drive the lead screw 206 to rotate clockwise, and the lead screw 206 acts on the nut seat 205, so that the nut seat 205 drives the movable seat 203 and the wire pulling wheel 202 to move towards the direction of the wire guiding wheel 201, and the grounding lead 4 is in a loose state at the moment, so that the grounding lead 4 can have enough connection length to facilitate connection and fixation with a conductor component; when the installation of the grounding lead 4 is completed, the lead screw 206 is rotated anticlockwise, so that the nut seat 205 drives the movable seat 203 and the wire pulling wheel 202 to move towards a direction away from the wire pulling wheel 201, and the grounding lead 4 is in a straight state at this time, and the line contact is kept stable.
As shown in fig. 5, 7 and 8, the lower end surface of the bottom plate 1 is provided with a plurality of grounding conductor assemblies, the grounding conductor assemblies mainly comprise a connecting conducting ring 401, the periphery of the connecting conducting ring 401 is fixedly connected with a plurality of shunt rods 402, each shunt rod 402 is fixedly connected with a group of vertical conducting rods 403, the bottoms of the vertical conducting rods 403 are fixedly connected with cones 404, the grounding conductor assemblies and the auxiliary conducting mechanisms are arranged in at least four groups and distributed in a horizontal annular array, an annular cavity for accommodating the connecting conducting ring 401 is formed in the bottom plate 1, a plurality of rectangular long grooves for accommodating the shunt rods 402 are radially formed in the periphery of the annular cavity, one end of the grounding lead 4, far away from the oil immersed transformer 3, penetrates through the lead box 2 and stretches into the annular cavity to be fixedly connected with the connecting conducting ring 401, and one end of the vertical conducting rod 403, far away from the shunt rod 402, penetrates through the protective outer cylinder 5 and is fixedly connected with the cones 404. By arranging the connecting conducting ring 401 to be matched with the plurality of flow dividing rods 402, the vertical conducting rods 403 and the cones 404, on one hand, the stress of the conducting points is uniformly distributed, so that the current cannot be concentrated on one conductor, and the effect of prolonging the service life of the device is achieved; on the other hand greatly increased total ground area for the corresponding decline of ground resistance, thereby prolonged the earth life of distribution network to a certain extent, reduced maintainer's maintenance frequency.
As shown in fig. 7, 9 and 10, the outer part of the vertical conductive rod 403 is sleeved with a protective outer cylinder 5, the protective outer cylinder 5 is fixedly arranged at the bottom of the bottom plate 1, an auxiliary conductive mechanism is further arranged on the protective outer cylinder 5, the auxiliary conductive mechanism comprises a plurality of brine storage boxes 6, the brine storage boxes 6 are fixedly arranged on the upper end surface of the bottom plate 1, and each liquid separation piston cylinder 502 is matched with a liquid leakage branch pipe 501, a liquid separation piston cylinder 502, a drainage tubule 504, a piston head 505 and a piston rod 506;
the inner side wall of the protective outer cylinder 5 is fixedly provided with at least four groups of liquid-separating piston cylinders 502 through U-shaped clamping pieces 503, one end of each group of liquid-separating piston cylinders 502 close to the inner side wall of the protective outer cylinder 5 is provided with at least six liquid-leakage branch pipes 501 in a linear distribution mode, each liquid-leakage branch pipe 501 is penetrated and arranged on the side wall of the protective outer cylinder 5, the inside of each liquid-leakage branch pipe 501 is provided with a second one-way valve, one end of a drainage thin pipe 504 is fixedly inserted at the bottom of a saline water storage box 6, the other end of the drainage thin pipe 504 extends into the inside of the protective outer cylinder 5 and is fixedly inserted at the bottom end of the liquid-separating piston cylinder 502, and the drainage thin pipe 504 is provided with a first one-way valve;
when the liquid separation piston is used, when the piston rod 506 drives the piston head 505 to move downwards, the salt water in the liquid separation piston cylinder 502 is compressed, the first one-way valve is closed, and the second one-way valve is opened, so that the salt water in the liquid separation piston cylinder 502 can be uniformly injected into the soil at the grounding electrode through the liquid leakage branch pipes 501, and the conductivity of the soil is improved; when the piston rod 506 drives the piston head 505 to move upwards, air in the liquid-separating piston cylinder 502 is diluted, at the moment, the second one-way valve is closed, and the first one-way valve is opened, so that saline in the saline storage box 6 can be shunted into the liquid-separating piston cylinder 502 through the plurality of drainage tubules 504, and the saline is filled in time.
As shown in fig. 9-11, a piston head 505 is slidably arranged at the upper end of the inner cavity of each liquid-separating piston cylinder 502, one end of a piston rod 506 is connected with a first driving device, the other end of the piston rod 506 extends into the inner cavity of the liquid-separating piston cylinder 502 and is fixedly connected with the piston head 505, an installation cavity positioned at the upper end of an annular cavity is arranged in the bottom plate 1, the installation cavity is provided with a first driving device, the first driving device comprises a driving disc 7, the driving disc 7 is rotatably arranged in the installation cavity, at least four inclined grooves 708 are formed in the upper end face of the driving disc 7, a poking column 706 is inserted into each inclined groove 708, a balance block 705 is fixedly connected with the upper end of the poking column 706, and two groups of push rods 704 are symmetrically arranged on the balance block 705;
one end of each push rod 704 far away from the balance weight 705 is provided with a group of vertical blocks 702, the bottoms of the two groups of vertical blocks 2 are connected with a coupling ring 701 together, the lower end of the coupling ring 701 is fixedly connected with a plurality of piston rods 506, the bottom of the coupling ring 701 is fixedly connected with a spring, one end of each vertical block 2 close to the balance weight 705 is provided with a wedge-shaped groove 703, and the push rods 704 are inserted into the wedge-shaped grooves 703 and act on inclined planes of the wedge-shaped grooves 703. A rotating shaft is fixedly inserted into the central part of the driving disc 7, the upper end of the rotating shaft is fixedly connected with a spur gear 709, one side of the spur gear 709 is connected with a rack 7010 in a meshed manner, and the rack 7010 is driven by a hydraulic cylinder 7011 to perform linear movement. When the hydraulic cylinder 7011 is started in use, a piston rod of the hydraulic cylinder 7011 extends out and acts on the rack 7010, so that the rack 7010 drives the spur gear 709 to rotate positively and negatively, and when the spur gear 709 drives the driving disc 7 to rotate clockwise, a chute 708 on the spur gear 709 acts on the poking column 706, so that the poking column 706 drives the balance block 705 to move towards the spur gear 709, the push rod 704 is pulled out from the wedge-shaped groove 703 and the binding force of the opposite block 702 is released, and the coupling ring 701 drives the piston rod 506 to move upwards under the action of the rebound force of the spring; when the spur gear 709 drives the driving disc 7 to rotate anticlockwise, the inclined groove 708 on the driving disc 7 acts on the poking column 706, so that the poking column 706 drives the balance weight 705 to move towards the direction of the protective outer cylinder 5, and the push rod 704 continuously stretches into the wedge-shaped groove 703 and acts on the inclined surface of the wedge-shaped groove, so that the coupling ring 701 presses the spring and drives the piston rod 506 to move downwards.
The invention is used when in use: in the process of installing the grounding lead 4, firstly, the hand-held rotating wheel 208 drives the lead screw 206 to rotate clockwise, and the lead screw 206 acts on the nut seat 205, so that the nut seat 205 drives the movable seat 203 and the wire pulling wheel 202 to move towards the direction of the wire guiding wheel 201, and at the moment, the grounding lead 4 is in a loose state, so that the grounding lead 4 can have enough connection length to facilitate connection and fixation with a conductor component; when the installation of the grounding lead 4 is completed, the lead screw 206 is rotated anticlockwise, so that the nut seat 205 drives the movable seat 203 and the wire pulling wheel 202 to move towards the direction far away from the wire pulling wheel 201, and the grounding lead 4 is in a straight state at this time, and the line contact is kept stable; the connecting conductive ring 401 is matched with the plurality of flow dividing rods 402, the vertical conductive rods 403 and the cones 404, so that on one hand, the stress of the conductive points is uniformly distributed, and the current cannot be concentrated on one conductor, thereby achieving the effect of prolonging the service life of the device; on the other hand, the total grounding area is greatly increased, so that the grounding resistance is correspondingly reduced, the grounding service life of the power distribution network is prolonged to a certain extent, and the overhaul frequency of overhaul personnel is reduced;
after the device is used for a long time, by opening the hydraulic cylinder 7011, a piston rod of the hydraulic cylinder 7011 extends out and acts on the rack 7010, so that the rack 7010 drives the spur gear 709 to rotate positively and negatively, when the spur gear 709 drives the driving disc 7 to rotate clockwise, a chute 708 on the spur gear 706 acts on the stirring column 706, so that the stirring column 706 drives the balance block 705 to move towards the spur gear 709, the push rod 704 is pulled out from the wedge groove 703 and the binding force of the opposite block 702 is released, so that the coupling ring 701 drives the piston rod 506 to move upwards under the rebound force of the spring, the piston head 505 also moves upwards along with the piston rod, the air in the liquid separating piston cylinder 502 is diluted, the second one-way valve is closed, and the first one-way valve is opened, so that saline in the saline storage box 6 can be shunted into the liquid separating piston cylinder 502 through the plurality of drainage tubules 504, and primary saline water replenishing action is realized; then, the first driving device acts on the coupling ring 701, so that the piston rod 506 drives the piston head 505 to move downwards, at this time, the salt water in the liquid separation piston cylinder 502 is compressed, the first one-way valve is closed, the second one-way valve is opened, and the salt water in the liquid separation piston cylinder 502 can be uniformly injected into the soil at the grounding electrode through the liquid leakage branch pipes 501, so that the conductivity of the soil is improved, and the normal conductive effect of the grounding device is ensured.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides an oil-immersed transformer's earthing device, includes bottom plate (1) and sets up oil-immersed transformer (3) on bottom plate (1), its characterized in that: the bottom extension of oil-immersed transformer (3) is provided with ground lead (4), the outside of ground lead (4) is provided with lead box (2), on lead box (2) and the equal fixed connection bottom plate (1) of oil-immersed transformer (3), lead box (2) are inside still to be provided with the lead guiding mechanism that is used for ground lead (4), the lower terminal surface of bottom plate (1) is provided with many sets of ground conductor subassembly, ground conductor subassembly includes connection conducting ring (401), the periphery fixedly connected with many reposition of redundant personnel pole (402) of connection conducting ring (401), the equal fixed connection of every reposition of redundant personnel pole (402) is a set of vertical conducting rod (403), the equal fixed connection cone (404) in bottom of every vertical conducting rod (403), and the outside cover of vertical conducting rod (403) is equipped with protective outer tube (5), protective outer tube (5) are fixed to be provided with the bottom of bottom plate (1), still be provided with auxiliary conductive mechanism on protective outer tube (5), auxiliary conductive mechanism includes a plurality of salt water storage box (6), salt water storage box (6) are provided with on bottom plate (1), and are equipped with piston (502) and are used for sealing piston (502) to drain fluid on each end face, piston (502) are shared by piston (502) A piston head (505) and a piston rod (506);
the grounding conductor assembly and the auxiliary conductive mechanism are arranged at least four groups and are distributed in a horizontal annular array, an annular cavity for accommodating the connecting conductive ring (401) is formed in the bottom plate (1), a plurality of rectangular long grooves for accommodating the shunt rods (402) are radially formed in the periphery of the annular cavity, one end of the grounding lead (4) far away from the oil immersed transformer (3) penetrates through the lead box (2) and extends into the annular cavity to be fixedly connected with the connecting conductive ring (401), and one end of the vertical conductive rod (403) far away from the shunt rod (402) penetrates through the protection outer cylinder (5) and is fixedly connected with the cone (404);
the utility model discloses a liquid-separating piston cylinder, including protection urceolus (5), protection urceolus (5) are provided with through U-shaped fastener (503) fixed branch liquid piston cylinder (502) that are not less than four sets of on the inside wall, the one end that each group liquid-separating piston cylinder (502) is close to protection urceolus (5) inside wall all is the linear distribution and is not less than six weeping branch pipes (501), every weeping branch pipe (501) are run through and are established on protection urceolus (5) side wall, and the inside of weeping branch pipe (501) is provided with No. two check valves, establish in the bottom of brine storage box (6) is fixed to the fixed cartridge of inserting of drainage tubule (504), the other end of drainage tubule (504) stretches into the inside of protection urceolus (5) and fixedly inserts the bottom of establishing at branch liquid piston cylinder (502), and be provided with the check valve No. one on the drainage tubule (504).
2. The grounding device of an oil immersed transformer according to claim 1, wherein: the inner cavity upper end of each liquid-separating piston cylinder (502) is slidably provided with a piston head (505), one end of a piston rod (506) is connected to a first driving device, the other end of the piston rod (506) extends into the inner cavity of the liquid-separating piston cylinder (502) and is fixedly connected with the piston head (505), an installation cavity positioned at the upper end of the annular cavity is formed in the bottom plate (1), the installation cavity is provided with a first driving device, the first driving device comprises a driving disc (7), the driving disc (7) is rotatably installed in the installation cavity, at least four inclined grooves (708) are formed in the upper end face of the driving disc (7), a poking column (706) is inserted in each inclined groove (708), a balancing block (705) is fixedly connected to the upper end of the poking column (706), and two groups of push rods (704) are symmetrically arranged on the balancing block (705).
3. The grounding device of an oil immersed transformer according to claim 2, wherein: one end of each push rod (704) far away from the balance weight (705) is provided with a group of vertical blocks (702), the bottoms of the two groups of vertical blocks (2) are connected with a connecting ring (701) together, the lower end of the connecting ring (701) is fixedly connected with a plurality of piston rods (506), the lower end of the connecting ring (701) is fixedly connected with a spring, one end of each vertical block (2) close to the balance weight (705) is provided with a wedge-shaped groove (703), and the push rods (704) are inserted into the wedge-shaped grooves (703) and act on inclined planes of the wedge-shaped grooves.
4. A grounding device for an oil immersed transformer according to claim 3, wherein: the center part of the driving disc (7) is fixedly inserted with a rotating shaft, the upper end of the rotating shaft is fixedly connected with a spur gear (709), one side of the spur gear (709) is connected with a rack (7010) in a meshed mode, and the rack (7010) is driven by a hydraulic cylinder (7011) to move linearly.
5. The grounding device of an oil immersed transformer according to claim 1, wherein: the wire box is characterized in that an adjusting cavity is formed in the wire box (2), a wire adjusting mechanism is arranged in the adjusting cavity and comprises two groups of wire wheels (201) which are vertically symmetrical and a group of wire wheels (202), the two groups of wire wheels (201) are rotatably arranged at the right end of the adjusting cavity, the wire wheels (202) are arranged between the two groups of wire wheels (201), the wire wheels (202) are rotatably arranged on a movable seat (203), and the movable seat (203) is driven by a second driving device and linearly slides along the side wall of the adjusting cavity.
6. The grounding device of an oil immersed transformer according to claim 5, wherein: both sides of the movable seat (203) are fixedly connected with a group of guide blocks (204), limiting long grooves for accommodating the guide blocks (204) are formed in the side walls of the adjusting cavity, the guide blocks (204) and the limiting long grooves are of trapezoid structures, the second driving device comprises a nut seat (205) and a screw rod (206), the nut seat (205) is sleeved on the screw rod (206), and the bottom of the nut seat (205) is fixedly connected with the upper end of the movable seat (203).
7. The grounding device of an oil immersed transformer according to claim 6, wherein: one end of the lead screw (206) is limited to rotate and is connected with a lead screw fixing seat, the lead screw fixing seat is fixedly connected with the top wall of the adjusting cavity, the other end of the lead screw (206) penetrates through the left side wall of the lead screw box (2) and is fixedly connected with a rotating wheel (208), one end of the lead screw (206) close to the rotating wheel (208) is externally sleeved with a fixing sleeve (207), the fixing sleeve (207) is fixedly connected with the outer wall of the lead screw box (2), and a positioning screw which is abutted against the outer wall of the lead screw (206) is further arranged on the fixing sleeve (207).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210000536.8A CN114267970B (en) | 2022-01-04 | 2022-01-04 | Grounding device of oil immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210000536.8A CN114267970B (en) | 2022-01-04 | 2022-01-04 | Grounding device of oil immersed transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114267970A CN114267970A (en) | 2022-04-01 |
| CN114267970B true CN114267970B (en) | 2023-08-15 |
Family
ID=80832513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210000536.8A Active CN114267970B (en) | 2022-01-04 | 2022-01-04 | Grounding device of oil immersed transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114267970B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116073150B (en) * | 2023-03-28 | 2023-06-27 | 山西省安装集团股份有限公司 | Grounding device for mountain photovoltaic power station and use method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090111020A (en) * | 2008-04-21 | 2009-10-26 | 노이즈프리미어랩 주식회사 | Grounding apparatus included grounding resistance reducing agent |
| CN101752684A (en) * | 2010-01-28 | 2010-06-23 | 高政 | Grounding electrode of anti-corrosion and adjustable grounding resistor |
| JP2011258529A (en) * | 2010-06-11 | 2011-12-22 | Chugoku Electric Power Co Inc:The | Grounding electrode of grounding resistance reducer injection method and grounding construction method using the same |
| JP2013084378A (en) * | 2011-10-06 | 2013-05-09 | Chugoku Electric Power Co Inc:The | Implantation device of ground resistance reduction agent and ground resistance reduction method |
| CN106066411A (en) * | 2016-08-05 | 2016-11-02 | 国家电网公司 | Auxiliary electrode structure for large-scale grounding network grounding resistance measurement |
| CN206541940U (en) * | 2017-03-27 | 2017-10-03 | 国网山东省电力公司枣庄供电公司 | A kind of electric power grounding device |
| CN111064016A (en) * | 2019-11-29 | 2020-04-24 | 邹平市供电公司 | Grounding device of electric power tower |
| CN111355044A (en) * | 2020-04-13 | 2020-06-30 | 蚌埠普源电气科技有限公司 | Distribution transformer grounding structure capable of changing soil resistivity |
| CN111360050A (en) * | 2020-03-26 | 2020-07-03 | 方军 | On-vehicle type pollutes land and restores injection device with online |
| CN212136222U (en) * | 2020-06-24 | 2020-12-11 | 陕西中汇机电设备有限公司 | Oil-immersed transformer ground lead device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6632047B2 (en) * | 2000-04-14 | 2003-10-14 | Board Of Regents, The University Of Texas System | Heater element for use in an in situ thermal desorption soil remediation system |
-
2022
- 2022-01-04 CN CN202210000536.8A patent/CN114267970B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090111020A (en) * | 2008-04-21 | 2009-10-26 | 노이즈프리미어랩 주식회사 | Grounding apparatus included grounding resistance reducing agent |
| CN101752684A (en) * | 2010-01-28 | 2010-06-23 | 高政 | Grounding electrode of anti-corrosion and adjustable grounding resistor |
| JP2011258529A (en) * | 2010-06-11 | 2011-12-22 | Chugoku Electric Power Co Inc:The | Grounding electrode of grounding resistance reducer injection method and grounding construction method using the same |
| JP2013084378A (en) * | 2011-10-06 | 2013-05-09 | Chugoku Electric Power Co Inc:The | Implantation device of ground resistance reduction agent and ground resistance reduction method |
| CN106066411A (en) * | 2016-08-05 | 2016-11-02 | 国家电网公司 | Auxiliary electrode structure for large-scale grounding network grounding resistance measurement |
| CN206541940U (en) * | 2017-03-27 | 2017-10-03 | 国网山东省电力公司枣庄供电公司 | A kind of electric power grounding device |
| CN111064016A (en) * | 2019-11-29 | 2020-04-24 | 邹平市供电公司 | Grounding device of electric power tower |
| CN111360050A (en) * | 2020-03-26 | 2020-07-03 | 方军 | On-vehicle type pollutes land and restores injection device with online |
| CN111355044A (en) * | 2020-04-13 | 2020-06-30 | 蚌埠普源电气科技有限公司 | Distribution transformer grounding structure capable of changing soil resistivity |
| CN212136222U (en) * | 2020-06-24 | 2020-12-11 | 陕西中汇机电设备有限公司 | Oil-immersed transformer ground lead device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114267970A (en) | 2022-04-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114267970B (en) | Grounding device of oil immersed transformer | |
| CN207303843U (en) | A kind of semi-automation relay-set cable fixed equipment | |
| CN111564764B (en) | Box high-voltage substation with cable connection protection mechanism | |
| CN211320765U (en) | Wire clamp for stringing of transmission line engineering on transmission line tower | |
| CN201576609U (en) | Electric operation device of indoor high-voltage isolating switch | |
| CN212136222U (en) | Oil-immersed transformer ground lead device | |
| CN217214422U (en) | Insulating lightning protection sleeve pipe of power transformer solid seal | |
| CN2711869Y (en) | All closed buried type transformer | |
| CN216250310U (en) | 66kV voltage level three-winding high-capacity power transformer | |
| CN215911719U (en) | Grounding device is consolidated to regulator cubicle | |
| CN102054571A (en) | Dry type power transformer with voltage ratio of 33/22kV voltage level | |
| CN212676856U (en) | Structure of distribution line parallel gap | |
| CN214043521U (en) | Protection architecture for outdoor column vacuum circuit breaker | |
| CN113607983A (en) | 10 kilovolt overhead line overhauls interim earthing device of intelligence | |
| CN211113442U (en) | Flood control baffle plate for liftable transformer substation | |
| CN215772221U (en) | Compact structure's prepackage type transformer substation | |
| CN215298911U (en) | Non-nuclear grade medium-voltage power cable with 60-year service life | |
| CN208093310U (en) | A kind of oil-immersed power transformer easy for removal and installation | |
| CN215645373U (en) | Grounding device is consolidated to regulator cubicle | |
| CN211014409U (en) | High-voltage metering box | |
| CN216251936U (en) | Electrified quick repair tools of overhead earth wire broken strand | |
| CN219086484U (en) | Box-type substation capable of top lead wire | |
| CN201576553U (en) | 10KV voltage transformer | |
| CN220440132U (en) | Compact low-voltage power distribution cabinet convenient for wire arrangement | |
| CN112886521B (en) | Power line cross arm |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240119 Address after: No. 2222, Tianwei West Road, Baoding City, Hebei Province 071000 Patentee after: BAODING TIANWEI BAOBIAN ELECTRIC Co.,Ltd. Address before: 066200 No. 9, Dongli Road, Shanhaiguan Economic Development Zone, Qinhuangdao City, Hebei Province Patentee before: TIANWEI BAOBIAN (QINHUANGDAO) TRANSFORMER Co.,Ltd. |