A kind of three-phase pipe bus vertical stratification of 500kV transformer station
Technical field
The present invention relates to extra-high voltage electric power transmission line construction technical field, especially relate to a kind of three-phase pipe bus vertical stratification of 500kV transformer station.
Background technology
In extra-high voltage electric power transmission electric power system, there is A, B, C three-phase electricity, the low-pressure side 35kV of 500kV transformer station or 66kV is provided with a large amount of collecting pipe buses, i.e. A, B, C three-phase pipe bus, transformer station's three-phase pipe busbar scheme is directly connected to construction investment benefit and the later stage running quality of transformer station.Usually, the plane distribution parallel to the ground at this A, B, C three-phase pipe bus place, but mainly work the effect of confluxing due to pipe mother, its length usually with the width of transformer station quite, the overall width of A, B, C three-phase pipe bus is about 3.4m-4m.Therefore, this line construction design needs to occupy larger floor area, is unfavorable for the general layout global design optimizing transformer station, nor is convenient to the operation maintenance work of transformer station.
Summary of the invention
The technical problem to be solved in the present invention is: for prior art Problems existing, provides a kind of three-phase pipe bus vertical stratification of 500kV transformer station, saves the floor space of transformer station, and is convenient to operation maintenance.
The technical problem to be solved in the present invention realizes by the following technical solutions: a kind of three-phase pipe bus vertical stratification of 500kV transformer station, comprise the female and female fixing gold utensil of pipe of three-phase pipe and support, described three-phase pipe mother stock is not connected with the independently female gold utensil of fixing of pipe, insulate between described support and the fixing gold utensil of pipe mother, pipe mother and be connected, described three-phase pipe female place plane is all mutually vertical with level ground, and the phase spacing between adjacent two-phase pipe mother is 1.5m-2m.
Preferably, the vertical range between the pipe mother that the female middle distance level ground of described three-phase pipe is nearest and level ground is 2.5m-4.5m.
Preferably, the fixing gold utensil of described pipe mother is made up of mount pad, lower plate and train wheel bridge, and train wheel bridge, lower plate arrange arc groove respectively, and described lower plate and mount pad are movably hinged, and described train wheel bridge is flexibly connected with lower plate.
Preferably, described mount pad is arranged the chute of bar shaped, described lower plate runs through chute by connecting pin and mount pad is movably hinged, and along chute relative to mount pad rectilinear motion.
Preferably, described mount pad arranges through hole, described lower plate runs through described through hole by connecting pin and mount pad is movably hinged, and rotates relative to mount pad.
Preferably, be flexibly connected by bolt, nut composition between described train wheel bridge, lower plate.
Preferably, described support and strutting piece are mutually vertical and be fixedly connected with, and strutting piece is fixedly connected with end bracket, and described strutting piece is by being flexibly connected between end bracket with post insulator, and described post insulator is flexibly connected with female the fixing between gold utensil of pipe.
Preferably, formed by bolt, nut between described post insulator and the fixing gold utensil of pipe mother and be flexibly connected.
Compared with prior art, the invention has the beneficial effects as follows: because three-phase pipe female place plane is all mutually vertical with level ground, and the phase spacing between adjacent two-phase pipe mother is 1.5m-2m, to prevent between pipe mother because of high-voltage breakdown, under the prerequisite meeting the operation of 500kV substation safety, the overall width of three-phase pipe bus can be made to be reduced to about 1.4m by the about 3.4m-4m of conventional levels structure, and then to make the length of 500kV transformer station or width overallly can reduce about 2m-2.6m.Therefore, adopt the present invention effectively can reduce the floor space of 500kV transformer station, and do not affect the installation of equipment, operation, maintenance, thus saved valuable land resource, be conducive to the difficulty of construction reducing 500kV transformer station, also be more convenient to the operation maintenance work of 500kV transformer station, there is good economic benefit.
Accompanying drawing explanation
Fig. 1 is the structural map of the three-phase pipe bus vertical stratification of a kind of 500kV transformer station of the present invention.
Fig. 2 is the front view of the fixing gold utensil (sliding-type) of pipe mother in Fig. 1.
Fig. 3 is the end view of the fixing gold utensil (sliding-type) of pipe mother in Fig. 1.
Fig. 4 is the front view of the fixing gold utensil (rotation) of pipe mother in Fig. 1.
Fig. 5 is the end view of the fixing gold utensil (rotation) of pipe mother in Fig. 1.
Mark in figure: 1-pipe is female, 2-post insulator, 3-support, 4-strutting piece, the fixing gold utensil of 5-pipe mother, 6-bolt, 7-nut, 8-end bracket, 50-mount pad, 51-lower plate, 52-train wheel bridge, 53-chute, 54-connecting pin.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with the drawings and specific embodiments, the present invention is described in detail.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment 1
As shown in Figure 1, a kind of three-phase pipe bus vertical stratification of 500kV transformer station, mainly comprise A, B, C three-phase pipe female 1 and pipe mother fixing gold utensil 5, post insulator 2 and support 3, support 3 wherein adopts round steel pipe, support 3 is welded and fixed three strutting pieces 4 from top to bottom successively, described strutting piece 4 is mutually vertical with support 3 respectively, end bracket 8 is welded and fixed in strutting piece 4 one end, described end bracket 8 is flexibly connected, with the dismounting in convenient construction process with consisting of bolt 6, nut 7 between post insulator 2 again.
As shown in Figure 2 and Figure 3, the fixing gold utensil 5 of described pipe mother is made up of mount pad 50, lower plate 51 and train wheel bridge 52, train wheel bridge 52, lower plate 51 arrange arc groove respectively, and the radius of described arc groove is equal to the radius of pipe mother 1, so that the fixing gold utensil 5 of pipe mother fully can contact with between the pipe mother 1 gripped by it, by increase contact area improve pipe female 1 fixing after stability.Described mount pad 50 arranges the chute 53 of bar shaped, and described lower plate 51 runs through chute 53 by connecting pin 54 and is movably hinged with mount pad 50, makes lower plate 51 can along chute 53 relative to mount pad 50 moving linearly; Described lower plate 51 is flexibly connected with consisting of bolt 6, nut 7 between train wheel bridge 52, namely pipe mother 1 is clamped and fixed between train wheel bridge 52, lower plate 51, easy construction, and after female 1 installation of pipe, also there is certain freedom of movement, pipe mother 1 can be made can to obtain certain buffering, to ensure the security of operation of pipe mother 1 when impacted by the sharp poundings such as earthquake.
As shown in Figure 1, described post insulator 2 is linear structure, its one end consists of with end bracket 8 bolt 6, nut 7 and is flexibly connected, the other end also consists of bolt 6, the female mount pad 50 fixed in gold utensil 5 of nut 7 and pipe and is flexibly connected, therefore, namely define to insulate between support 3 and the fixing gold utensil 5 of pipe mother, pipe mother 1 and be connected.Described A phase, B phase, C phase pipe mother 1 are connected with the fixing gold utensil 5 of independently pipe mother respectively, and the female 1 place plane of the pipe of A phase, B phase, C phase is all mutually vertical with level ground, A phase pipe wherein female 1 is 1.5m-2m with the distance L3 between B phase pipe mother 1, B phase pipe female 1 and the distance L2 between C phase pipe mother 1 are also the vertical range L1 between 1.5m-2m, C phase pipe female 1 and level ground is 2.5m-4.5m.Such structure can prevent pipe mother 1 because of high-voltage breakdown effectively, to ensure the safe operation of 500kV transformer station; And described A phase pipe female 1 can be arranged to equal with the distance L3 between B phase pipe mother 1, B phase pipe female 1 with the distance L2 between C phase pipe mother 1, makes the general layout of transformer station more neat, attractive in appearance.
Embodiment 2
As shown in Figure 4, Figure 5, mount pad 50 in the fixing gold utensil 5 of pipe mother arranges through hole, described lower plate 51 runs through described through hole by connecting pin 54 and mount pad 50 is movably hinged, thus lower plate 51 can be rotated relative to mount pad 50, pipe mother 1 so also can be enable to obtain certain buffering, to ensure the security of operation of pipe mother 1 when impacted by the sharp poundings such as earthquake.Other structures are with embodiment 1.
After 500kV transformer station adopts above-mentioned three-phase pipe bus vertical stratification, owing to being parallel to each other between three post insulators 2 and keeping certain spacing, make also to be parallel to each other and keep certain spacing between pipe mother 1, therefore, can prevent between pipe mother 1 because of high-voltage breakdown, and ensure that the lead wire of the pipe mother 1 of A phase, B phase, C phase is unaffected, be conducive to the safety in operation, the reliability that improve transformer station.Under the prerequisite meeting substation safety operation, A phase, B phase, the female 1 place plane of pipe of C phase is mutually vertical with level ground, make A phase, B phase, the overall width of the pipe mother 1 of C phase is reduced to about 1.4m by the about 3.4m-4m of conventional levels structure, and then make the length of 500kV transformer station or width overallly can reduce about 2m-2.6m, effectively reduce the floor space of 500kV transformer station, and do not affect the installation of equipment, run, maintenance, save valuable land resource, be conducive to the difficulty of construction reducing 500kV transformer station, also the operation maintenance work of 500kV transformer station is more convenient to, achieve good economic benefit.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, it should be pointed out that all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.