CN216649217U - Pipeline connection structure for GIL - Google Patents

Abstract

The utility model discloses a pipeline connecting structure for GIL (general in-process labeling), which comprises a central pipeline and a tail end pipeline, wherein the tail end pipeline is arranged at one end of the central pipeline, a second fixing ring is fixedly arranged on the inner wall of one end, away from a first fixing ring, of the central pipeline, piston grooves are formed in the inner walls of one ends of the first fixing ring and the second fixing ring, a movable groove is formed in one end of the bottom of each piston groove, and the inner wall of each movable groove is movably connected with a piston sheet through a rotating shaft. According to the utility model, the second fixing ring is arranged on the inner wall of one end of the tail end pipeline, the push pipe fixedly arranged on the outer wall of one side of the second fixing ring can push the piston sheet arranged on the inner wall of the second fixing ring open, and the push pipe arranged on the inner wall of the first fixing ring is not pushed open.

Description

Pipeline connection structure for GIL

Technical Field

The utility model relates to the field of pipelines, in particular to a pipeline connecting structure for GIL.

Background

The traditional overhead line power transmission mode is easily affected by rain, snow, ice and dirt, and along with the continuous improvement of the transmission grade of an extra-high voltage power grid, the influence on the power transmission effect is more and more obvious, in addition, the society pays more and more attention to the electromagnetic environment, the requirements on the urban appearance are continuously improved, a power transmission corridor becomes a scarce resource for restricting the power development, and particularly in a large city with dense population, the power transmission mode adopting an overhead line faces more and more difficulties. The power transmission by adopting the cable is limited by the highest operation voltage and the current-carrying capacity sectional area, the technical and economic limits are reached, water trees and electric trees can appear in long-term operation, the problems of large capacitance, difficult heat dissipation and the like exist, the electrical characteristics of the GIL are similar to those of an overhead line, but the GIL is a metal-enclosed rigid structure and is sealed and insulated by adopting a pipeline, and the GIL is generally not influenced by environmental factors such as severe weather, special terrains and the like.

The pipeline that GIL used needs to have good sealed effect, and the pipeline that GIL adopted connects the sealed effect that the in-process can't keep single pipeline, and the resealing leads to the holistic gas leakage of pipeline circuit easily behind the multistage pipe connection, and needs to pass GIL from the pipeline among the pipeline tubulose in-process, consequently current pipeline is difficult to keep the leakproofness of pipeline in the installation, leads to the insulating gas leakage in the pipeline, and the result of use is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pipeline connecting structure for GIL (general in-process labeling), which aims to overcome the defects in the technology.

In order to achieve the above purpose, the utility model provides the following technical scheme: the utility model provides a pipeline connection structure for GIL, includes central authorities pipeline and tail end pipeline, the one end of central authorities pipeline is located to the tail end pipeline, the fixed first solid fixed ring that is equipped with of one end inner wall of central authorities pipeline and tail end pipeline, the fixed solid fixed ring that is equipped with of one end inner wall that first solid fixed ring was kept away from to central authorities pipeline, the solid fixed ring of second is opened to the solid fixed ring's of first solid fixed ring and second one end inner wall has the piston groove, the bottom one end in piston groove is opened there is movable groove, the inner wall in movable groove has the piston piece through pivot swing joint, the fixed pipe jacking that is equipped with of first solid fixed ring's one end outer wall, the one end outer wall of central authorities pipeline and tail end pipeline is opened there is the seal groove, the fixed sealing ring that is equipped with of one end outer wall that the seal groove was kept away from to central authorities pipeline.

Preferably, the outer wall of one end, far away from the sealing groove, of the tail end pipeline is fixedly provided with a conical pipe, the inner wall of the conical pipe is provided with a GIL outlet pipe, and a GIL wire is extruded into the inner wall of the sealing sleeve through the GIL outlet pipe arranged on the inner wall of the conical pipe, so that the sealing effect of the utility model is improved.

Preferably, a sealing sleeve is fixedly arranged on the outer wall of one end of the conical tube, a sealing rubber cap is sleeved on the outer wall of one end of the sealing sleeve, one end of the GIL wire is sleeved with the sealing rubber cap through the inner wall of the sealing sleeve, and the sealing rubber cap is baked by flame to shrink the sealing rubber cap, so that the sealing effect of the utility model is improved.

Preferably, the central pipeline and the tail end pipeline comprise lining pipes and stainless steel pipes, the lining pipes are arranged on the inner walls of the stainless steel pipes, supporting blocks distributed at equal intervals are fixedly arranged on the outer walls of the lining pipes, the outer walls of the supporting blocks are fixedly connected with the inner walls of the stainless steel pipes, and the supporting blocks arranged on the outer walls of the lining pipes are connected with the inner walls of the stainless steel pipes, so that the strength of the pipeline is improved.

Preferably, a gas density detector is arranged at one end of the top of the central pipeline and comprises a detection end, the detection end is located on the inner wall of the central pipeline, and the concentration of the insulating gas in the gas density detector can be conveniently detected.

Preferably, a gas filling pipe is fixedly arranged at one end of the top of the central pipeline and is communicated with the inner wall of the central pipeline, a cap is screwed on the outer wall of the top of the gas filling pipe, and insulating gas can be conveniently injected into the gas filling pipe.

Preferably, the outer walls of the two sides of the central pipeline and the outer wall of one side of the tail end pipeline are fixedly provided with positioning rings, the outer walls of the central pipeline and the tail end pipeline are sleeved with supporting seats, the outer wall of each supporting seat is provided with positioning holes distributed at equal intervals, the inner wall of each positioning hole is provided with a bolt and a nut which are matched with each other, the bolts are sequentially inserted into the inner walls of the positioning holes formed in the supporting seats, the bolts inserted into the inner walls of the positioning holes are screwed by the nuts, and the central pipeline and the tail end pipeline are butted, so that the installation of the pipeline positioning device is facilitated.

Preferably, the ratio of the total amount of the components is set to be zero.

In the technical scheme, the utility model provides the following technical effects and advantages:

the sealing ring that is equipped with through central authorities ' pipeline one end outer wall impresses on tail end pipeline one end opens the seal groove inner wall that has, can make the one end of central authorities ' pipeline and tail end pipeline butt joint sealed, avoid the insulating gas in central authorities ' pipeline and the tail end pipeline to leak, be equipped with first solid fixed ring and the solid fixed ring of second through central authorities ' pipeline both ends inner wall, can make the inner wall of central authorities ' pipeline sealed, avoid the inner wall intercommunication of central authorities ' pipeline and tail end pipeline, avoid leading to the insulating gas of central authorities ' pipeline and tail end pipeline inside to leak when the installation pipeline.

The utility model has the advantages that the sealing effect is good, when the electric wires of the GIL are installed, only the top pipe arranged on the inner wall of the first fixing ring needs to be pushed open, the insulating gas in the utility model cannot be leaked when the electric wires of the GIL are installed, and the using effect is good.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a perspective view of a central tube according to the present invention;

FIG. 3 is a schematic perspective view of a tail end pipe according to the present invention;

FIG. 4 is a schematic perspective view of a first retaining ring according to the present invention;

FIG. 5 is a perspective view of a second retaining ring according to the present invention;

FIG. 6 is a schematic cross-sectional view of a central tube according to the present invention;

FIG. 7 is a schematic cross-sectional view of the tail end pipeline of the present invention.

Description of reference numerals:

the device comprises a central pipeline 1, a tail end pipeline 2, a conical pipe 3, a lining pipe 4, a stainless steel pipe 5, a gas density detector 6, an air filling pipe 7, a positioning ring 8, a supporting seat 9, a positioning hole 10, a GIL outlet pipe 11, a sealing sleeve 12, a sealing rubber cap 13, a sealing groove 14, a sealing ring 15, a first fixing ring 16, a second fixing ring 17, a piston groove 18, a movable groove 19, a piston sheet 20 and a top pipe 21.

Detailed Description

In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.

Example one

Referring to the attached drawings 1-7 in the specification, a pipeline connecting structure for GIL comprises a central pipeline 1 and a tail end pipeline 2, wherein the tail end pipeline 2 is arranged at one end of the central pipeline 1, a first fixing ring 16 is fixedly arranged on the inner wall of one end of the central pipeline 1 and the tail end pipeline 2, a second fixing ring 17 is fixedly arranged on the inner wall of one end, away from the first fixing ring 16, of the central pipeline 1, a piston groove 18 is formed in the inner wall of one end of the first fixing ring 16 and the inner wall of one end of the second fixing ring 17, a movable groove 19 is formed in one end of the bottom of the piston groove 18, a piston sheet 20 is movably connected to the inner wall of the movable groove 19 through a rotating shaft, a top pipe 21 is fixedly arranged on the outer wall of one end of the first fixing ring 16, a sealing groove 14 is formed in the outer walls of one ends of the central pipeline 1 and the tail end pipeline 2, and a sealing ring 15 is fixedly arranged on the outer wall of one end, away from the sealing groove 14, of the central pipeline 1.

Example two

Based on the first embodiment, the outer wall of one end of the tail end pipeline 2, which is far away from the sealing groove 14, is fixedly provided with the conical pipe 3, the inner wall of the conical pipe 3 is provided with the GIL outlet pipe 11, the electric wire of the GIL is extruded into the inner wall of the sealing sleeve 12 through the GIL outlet pipe 11 arranged on the inner wall of the conical pipe 3, so that the sealing effect of the utility model is improved, the outer wall of one end of the conical pipe 3 is fixedly provided with the sealing sleeve 12, the outer wall of one end of the sealing sleeve 12 is sleeved with the sealing rubber cap 13, one end of the electric wire of the GIL is sleeved with the sealing rubber cap 13 through the inner wall of the sealing sleeve 12, and the sealing rubber cap 13 is baked by using flame, so that the sealing rubber cap 13 is shrunk, and the sealing effect of the utility model is further improved.

EXAMPLE III

Based on the first embodiment, the central pipeline 1 and the tail end pipeline 2 comprise an inner lining pipe 4 and a stainless steel pipe 5, the inner lining pipe 4 is arranged on the inner wall of the stainless steel pipe 5, the outer wall of the inner lining pipe 4 is fixedly provided with support blocks distributed at equal intervals, the outer walls of the support blocks are fixedly connected with the inner wall of the stainless steel pipe 5, the strength of the utility model can be improved by connecting the support blocks arranged on the outer wall of the inner lining pipe 4 with the inner wall of the stainless steel pipe 5, positioning rings 8 are fixedly arranged on the outer walls of two sides of the central pipeline 1 and one side of the tail end pipeline 2, the outer walls of the central pipeline 1 and the tail end pipeline 2 are sleeved with a support seat 9, positioning holes 10 distributed at equal intervals are formed in the outer wall of the support seat 9, the inner walls of the positioning holes 10 are provided with adaptive bolts and nuts, the bolts are sequentially inserted into the inner walls of the positioning holes 10 formed in the support seat 9, the bolts inserted into the inner walls of the positioning holes 10 are screwed by the nuts, the central pipeline 1 and the tail end pipeline 2 are butted, so that the installation of the pipeline is convenient.

Example four

Based on the first embodiment, one end of the top of the central pipeline 1 is provided with the gas density detector 6, the gas density detector 6 comprises a detection end, the detection end is located on the inner wall of the central pipeline 1, the concentration of the insulating gas in the utility model can be conveniently detected through the gas density detector 6, one end of the top of the central pipeline 1 is fixedly provided with the gas filling pipe 7, the gas filling pipe 7 is communicated with the inner wall of the central pipeline 1, the outer wall of the top of the gas filling pipe 7 is in threaded connection with a cap, and the insulating gas can be conveniently injected into the utility model through the gas filling pipe 7.

The working principle of the utility model is as follows:

referring to the attached drawings 1-7 of the specification, when in use, firstly, a support seat 9 is installed on the outer walls of a central pipeline 1 and a tail end pipeline 2, one ends of the central pipeline 1 and the tail end pipeline 2 are aligned, at the moment, a GIL electric wire is inserted through one end of the central pipeline 1, which is provided with a second fixing ring 17, the electric wire can push open a piston sheet 20 movably connected on the inner wall of the second fixing ring 17, the electric wire is positioned on the inner wall of the central pipeline 1, at the moment, the butt joint of one ends of the central pipeline 1 and the tail end pipeline 2 is started, bolts are sequentially inserted into the inner wall of a positioning hole 10 formed in the support seat 9, the bolts inserted into the inner wall of the positioning hole 10 are screwed by using nuts, when the nuts are screwed, a sealing ring 15 arranged at one end of the central pipeline 1 is pressed into the inner wall of a sealing groove 14 formed at one end of the tail end pipeline 2, so that the butt joint of the central pipeline 1 and the tail end pipeline 2 is sealed, when the butt joint of the central pipeline 1 and the tail end pipeline 2 is sealed, the inner walls of the central pipeline 1 and the tail end pipeline 2 can be prevented from being communicated through the first fixing ring 16 and the second fixing ring 17 arranged at one ends of the central pipeline 1 and the tail end pipeline 2, the communication between the outside gas and the gas in the pipeline is avoided, the sealing effect is good, meanwhile, the second fixing ring 17 arranged at the inner wall of one end of the tail end pipeline 2, the push pipe 21 fixedly arranged on the outer wall of one side of the second fixing ring 17 can push the piston sheet 20 arranged on the inner wall of the second fixing ring 17 open, the central pipeline 1 is communicated with the tail end pipeline 2, the electric wire of the GIL in the central pipeline 1 is inserted into the inner wall of the tail end pipeline 2 through the inner wall of the second fixing ring 17, the electric wire of the GIL is extruded into the inner wall of the sealing sleeve 12 through the GIL outlet pipe 11 arranged on the inner wall of the conical pipe 3, the sealing effect of the utility model is improved, one end of the electric wire of the GIL can be sleeved with the sealing rubber cap 13, the sealing rubber cap 13 is baked by flame, the sealing rubber cap 13 is contracted to further improve the sealing effect of the utility model, and then the GIL electric wire is connected with the outer wall equipment.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the utility model.

Claims (7)

1. The utility model provides a pipeline connection structure for GIL, includes central authorities pipeline (1) and tail end pipeline (2), the one end of central authorities pipeline (1), its characterized in that are located in tail end pipeline (2): the fixed first solid fixed ring (16) that is equipped with of one end inner wall of central authorities 'pipeline (1) and tail end pipeline (2), the fixed second solid fixed ring (17) that is equipped with of one end inner wall of first solid fixed ring (16) is kept away from in central authorities' pipeline (1), the one end inner wall of first solid fixed ring (16) and the solid fixed ring of second (17) is opened there is piston groove (18), bottom one end of piston groove (18) is opened there is movable groove (19), the inner wall of movable groove (19) has piston disc (20) through pivot swing joint, the fixed push pipe (21) that is equipped with of one end outer wall of first solid fixed ring (16), the one end outer wall of central authorities 'pipeline (1) and tail end pipeline (2) is opened there is seal groove (14), the fixed sealing ring (15) that is equipped with of one end outer wall that seal groove (14) was kept away from in central authorities' pipeline (1).

2. The piping connection structure for a GIL according to claim 1, wherein: the one end outer wall that seal groove (14) were kept away from in tail end pipeline (2) is fixed and is equipped with conical duct (3), the inner wall of conical duct (3) is equipped with GIL and goes out spool (11).

3. The piping connection structure for a GIL according to claim 2, characterized in that: the outer wall of one end of the conical pipe (3) is fixedly provided with a sealing sleeve (12), and the outer wall of one end of the sealing sleeve (12) is sleeved with a sealing rubber cap (13).

4. The piping connection structure for a GIL according to claim 1, wherein: the central pipeline (1) and the tail end pipeline (2) comprise lining pipes (4) and stainless steel pipes (5), the lining pipes (4) are arranged on the inner walls of the stainless steel pipes (5), supporting blocks distributed at equal intervals are fixedly arranged on the outer walls of the lining pipes (4), and the outer walls of the supporting blocks are fixedly connected with the inner walls of the stainless steel pipes (5).

5. The piping connection structure for a GIL according to claim 1, wherein: the gas density detector (6) is arranged at one end of the top of the central pipeline (1), the gas density detector (6) comprises a detection end, and the detection end is located on the inner wall of the central pipeline (1).

6. The piping connection structure for a GIL according to claim 1, wherein: an air adding pipe (7) is fixedly arranged at one end of the top of the central pipeline (1), the air adding pipe (7) is communicated with the inner wall of the central pipeline (1), and a cover cap is screwed on the outer wall of the top of the air adding pipe (7).

7. The piping connection structure for a GIL according to claim 1, wherein: the outer wall of the two sides of the central pipeline (1) and the outer wall of one side of the tail end pipeline (2) are fixedly provided with positioning rings (8), the outer walls of the central pipeline (1) and the tail end pipeline (2) are sleeved with supporting seats (9), the outer walls of the supporting seats (9) are provided with positioning holes (10) which are distributed equidistantly, and the inner walls of the positioning holes (10) are provided with bolts and nuts which are matched with each other.

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