CN210725452U - Piping lane electrostatic grounding device - Google Patents

Abstract

The utility model relates to a piping lane static earthing device for realize the ground connection of piping lane interior conduit, the device including fix two longerons on the ground, with two longeron mutual welded crossbeams, the L type tandem plate of welding on the crossbeam and weld the disconnected board in two longeron sides respectively, disconnected board pass through the ground plate and bury underground the earthing pole underground and be connected, the pipe installation on the crossbeam to be connected through connecting wire and tandem plate. Compared with the prior art, the utility model has the advantages of with low costs, construction convenience, convenient measurement ground resistance value, be applicable to the ground connection requirement of overhead pipeline on various types of piping lane.

Description

Piping lane electrostatic grounding device

Technical Field

The utility model belongs to the technical field of pipeline under pressure design, construction and detection technique and specifically relates to a piping lane electrostatic grounding device is related to.

Background

Pipeline most in the petrochemical production all belongs to pressure pipeline, and pipeline transportation is industrial production's important mode, and the industrial pipeline adopts built on stilts mode of laying mostly, piping lane, the corridor of pipeline promptly. In a plant, a plurality of pipes are grouped together in a uniform arrangement, and the medium is conveyed to each device area through the pipes arranged on the pipe gallery.

Pipeline media in the petrochemical engineering pipe gallery area are generally inflammable and explosive materials, flowing current generated by oil flowing in a pipeline and the saturation value of charge density are in direct proportion to the square of the flow velocity of the oil, the oil can generate static electricity through relative motion such as flowing, stirring, settling and violent shaking, a large amount of static electricity can be accumulated in the transportation of the media, and spark discharge can occur after the static electricity is accumulated to a certain degree to cause ignition and explosion accidents. In the design specification of petroleum reservoirs (GB50074-2014), when armored liquid B and type B liquid are poured into a car tank car by adopting an upper loading arm, the flow speed must be controlled to be not more than 1m/s, and the specification also requires that an anti-static grounding device is arranged at the starting end and the tail end of an above-ground pipeline and every 200 meters of a straight line section. The grounding resistance of the anti-static grounding device is not more than 100 ohms, and the static grounding needs to meet the requirements of petrochemical static grounding design specifications (SH/T3097-.

Under the existing condition, the static grounding device for the flammable and explosive medium overhead pipelines on the pipe gallery does not exist, the overhead pipelines are generally grounded independently by adopting each pipeline, the construction period is prolonged, the cost is increased, the construction is difficult, omission occurs easily, and unified management is not convenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a piping lane electrostatic grounding device for overcoming the defects existing in the prior art.

The purpose of the utility model can be realized through the following technical scheme:

the utility model provides a piping lane electrostatic grounding device for realize the ground connection of piping lane interior pipeline, the device including fix two longerons on the ground, with two longeron mutual welded crossbeams, the L type tandem plate of welding on the crossbeam and weld the disconnected board in two longeron sides respectively, disconnected board pass through the ground plate and bury underground the earthing pole underground and be connected, the pipe mounting on the crossbeam to be connected with the tandem plate through the connecting wire.

The connecting wire be a flexible copper braid over braid that both ends have the metal connecting hole, this flexible copper braid over braid one end is passed through the metal connecting hole and is connected with the vertical board of meeting fishplate bar, the other end passes through the metal connecting hole and is connected with the roof of welding at the pipeline top, the length of connecting wire is greater than the straight-line distance between roof and the meeting fishplate bar.

The pipeline is sequentially welded with the transition plate and the pipe bracket and then placed on the cross beam, the transition plate is an arc-shaped plate which is arranged right below the pipeline and is symmetrically arranged by taking the axis of the pipeline as a central line, and the arc center angle corresponding to the arc-shaped plate is 60-90 degrees.

The pipe bracket is characterized in that a vertical steel plate and a horizontal steel plate with the thickness of 6-14mm are welded with each other to form an inverted T shape, and the horizontal steel plate is arranged on the cross beam and limited by the baffle.

The baffle comprises two angle steels that are the type setting of falling L, horizontal steel sheet set up in two angle steels middle part spacing spaces that are the type setting of falling L.

The top plate is a rectangular steel plate and is welded and fixed right above the pipeline along the axial direction of the pipeline, the material and the thickness of the top plate are the same as those of the pipeline, and the upper part of the top plate is provided with holes the number and the size of which are the same as those of the metal connecting holes.

The connecting plates comprise an upper connecting plate and a lower connecting plate, the upper connecting plate and the lower connecting plate are L-shaped, a vertical plate of the upper connecting plate is welded on the side face of the longitudinal beam, a gap is formed between the vertical plate of the lower connecting plate and the side face of the longitudinal beam, a horizontal plate of the upper connecting plate and a horizontal plate of the lower connecting plate are provided with through holes, the horizontal plate and the horizontal plate are connected through fasteners, and the vertical plate of the lower connecting plate is connected with the ground plate.

The height of the vertical plate of the upper breaking connection plate from the ground is 800mm, the ground plate is a galvanized flat steel plate, the buried depth of the galvanized flat steel plate is more than 500mm, the ground plate is galvanized angle steel, and the depth of the galvanized angle steel is more than 3000 mm.

The junction plate comprises a horizontal plate and a vertical plate, the vertical plate is provided with holes, the number and the size of the holes are the same as those of the metal connecting holes, the metal connecting holes at one end of the connecting wire are connected with the corresponding holes in the vertical plate of the junction plate through fasteners, and the horizontal plate of the junction plate is welded and fixed on the cross beam.

This piping lane electrostatic grounding device is equipped with a plurality ofly along the extending direction of pipeline in the piping lane, crossbeam and longeron be H shaped steel.

Compared with the prior art, the utility model has the advantages of it is following:

1. the cross beam and the longitudinal beam are used as grounding connecting conductors, a down lead does not need to be specially made, and cost is saved.

2. Different kinds of pipelines can produce the different displacement volume of various directions because of the temperature difference, adopt longer flexible copper braid over braid can eliminate different pipelines and be heated the influence that the back warp is to the junction, consequently can connect the ground connection of many different pipelines of temperature to the joint board through the connecting wire in unison, concentrate the ground connection.

3. The grounding of a plurality of pipelines is realized by respectively connecting the connecting wires to the junction plate and the top plate through bolt nuts, and when a certain pipeline needs to be tested for the grounding resistance independently, the grounding resistance of the pipeline can be measured only by dismounting the bolt nuts on the top parts of the top plates of the rest pipelines.

4. For newly-increased flammable and combustible pipelines needing electrostatic grounding in the transformation project, connecting wires of the newly-increased pipelines are connected to the junction plate only by bolts and nuts, and fire and grounding facilities are not required to be added on site.

5. Adopt the vertical end welding both sides longeron of ground plate, apart from the terrace height for 300 supplyes 800mm, go up disconnected tie-plate and adopt bolt and nut to connect with disconnected tie-plate down, can conveniently dismantle, carry out ground resistance's test.

6. All set up the earthing pole in longeron both sides, furthest has reduced ground resistance, guarantees the safe and reliable of pipeline ground connection.

7. The baffles are arranged on two sides of the pipe bracket, and the horizontal gap between the pipe bracket and the baffles is 3-5mm, so that the problem that the pipeline is too large in radial displacement due to thermal expansion and thermal shrinkage and the safety of adjacent pipelines is influenced is avoided.

8. The transition plate is arranged below the pipeline to prevent the force borne by the pipe bracket from directly acting on the pipeline, the transition is carried out through the transition plate, the safety of the pipeline is protected, if the pipeline is made of stainless steel, the transition plate is made of stainless steel, and the pipe bracket can be made of common carbon steel, so that the corrosion of the pipeline can be avoided, and the cost can be saved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic connection diagram of a connecting line, a beam and a junction plate.

Fig. 3 is a schematic view of the connection of the upper breaking connection plate, the lower breaking connection plate and the grounding plate.

Fig. 4 is a left side view of the structure of the pipe connection.

Wherein: 1. the device comprises a pipeline, 2, a transition plate, 3, a pipe bracket, 4, a baffle plate, 5, a top plate, 6, a connecting line, 7, a junction plate, 8, a cross beam, 9, a longitudinal beam, 10, a disconnection plate, 11, a grounding plate, 12, a grounding electrode, 101, an upper disconnection plate, 102, a lower disconnection plate, 61, a flexible copper woven belt, 62 and a metal connecting hole.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Example (b):

the present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.

As shown in fig. 1-4, the utility model provides a piping lane electrostatic grounding device, including pipeline 1, transition plate 2, conduit saddle 3, baffle 4, roof 5, connecting wire 6, tandem board 7, crossbeam 8, longeron 9, disconnected board 10, ground plate 11, earthing pole 12. Pipeline 1 is connected through cab apron 2 with conduit saddle 3, and baffle 4 is fixed in 3 both sides of conduit saddle, and conduit saddle 3 is placed on crossbeam 8, crossbeam 8 and longeron 9 mutual welded connection, and directly over roof 5 welded fastening was pipeline 1, the vertical board of meeting board 7 is connected through connecting wire 6 with roof 5, and on meeting board 7 horizontal plane welded fastening was crossbeam 8, disconnected board 10 contained upper broken joint board 101 and lower broken joint board 102. The upper breaking plate 101 and the lower breaking plate 102 each include a horizontal plate and a vertical plate. The vertical plate welding longitudinal beam 9 of the upper breaking plate 101 is 800mm away from the floor, the horizontal plate of the upper breaking plate 101 and the horizontal plate of the lower breaking plate 102 are provided with a plurality of holes, the horizontal plate of the upper breaking plate 101 and the horizontal plate of the lower breaking plate 102 are connected through fasteners, the vertical plate of the lower breaking plate 102 is sequentially welded with the ground plate 11 and the grounding electrode 12, the ground plate 11 is made of galvanized flat steel, the burial depth is larger than 500mm, the grounding electrode 12 is made of galvanized angle steel, and the depth is larger than 3000 mm.

The transition plate 2 is an arc-shaped plate, the radian and the material of the transition plate 2 are the same as those of the pipeline 1, the transition plate 2 is positioned under the pipeline 1 and symmetrically arranged by taking the axis of the pipeline 1 as a central line, the arc center angle of the arc of the transition plate 2 is 60-90 degrees, and the pipe bracket 3 is formed by welding a vertical steel plate and a horizontal steel plate which are 6-14mm thick. The baffle plates 4 are fixed on the cross beam 8 and are positioned at two sides of the pipe bracket 3. The baffle 4 is composed of two pieces of angle steel and is arranged in an inverted L shape, and the pipe bracket 3 is placed on the cross beam 8.

The connecting wire 6 comprises a flexible copper-woven belt 61 and a plurality of metal connecting holes 62, wherein the plurality of metal connecting holes 62 are positioned at the left end and the right end of the flexible copper-woven belt 61.

Roof 5 welded fastening just above pipeline 1 and along pipeline 1 axial arrangement, roof 5 is rectangular steel sheet, and material and thickness all are the same with pipeline 1, and roof 5 upper portion is equipped with the trompil that quantity and size and metal connecting hole 62 are unanimous.

The junction plate 7 comprises a horizontal plate and a vertical plate, holes with the quantity and the size identical to those of the metal connecting holes 62 are formed in the vertical plate of the junction plate 7, and the metal connecting holes 62 at one end of the connecting wire 6 are connected with the holes of the vertical plate of the junction plate 7 through fasteners. The metal connecting hole 62 at the other end of the connecting wire 6 is connected with the opening of the top plate 5 through a fastener, the horizontal plate of the junction plate 7 is welded and fixed on the cross beam 8, and the length of the two ends of the connecting wire 6 is larger than the length of the straight line of the two ends to be connected.

Be equipped with many crossbeams 8, longeron 9 in the piping lane, mutually perpendicular between crossbeam 8 and the longeron 9, crossbeam 8 is H shaped steel with longeron 9.

The utility model discloses an installation as follows:

at first at the initial stage of steel pipe gallery civil engineering, pre-buried connecing board 7 on the crossbeam 8 of pipe gallery, connecing board 7 to be the angle steel, welding disconnected board 101 in the place that the longeron 9 of both sides is 300 supplyes land height for 800mm, squeeze into earthing pole 12, ground plate 11 in proper order in longeron basis both sides. The grounding plate 11 is made of galvanized flat steel, the buried depth is more than 500mm, and the grounding electrode 12 is made of galvanized angle steel, and the depth is more than 3000 mm. And welding the grounding plate 11 and the grounding electrode 12, and performing anticorrosion treatment. The upper breaking and connecting plate 101 and the lower breaking and connecting plate 102 are both angle steel, the vertical end of the lower breaking and connecting plate 102 is welded with the ground plate 11 and is not connected with the side face of the longitudinal beam (9), a plurality of holes are formed in the horizontal end of the upper breaking and connecting plate 101 and the horizontal end of the lower breaking and connecting plate 102, and the upper breaking and connecting plate 101 is connected with the lower breaking and connecting plate 102 through fasteners penetrating through the holes.

Secondly, the pipeline 1, the transition plate 2 and the pipe bracket 3 are sequentially welded and connected, the transition plate 2 is positioned under the pipeline 1 and symmetrically arranged by taking the axis of the pipeline 1 as a central line, the arc center angle of the arc of the transition plate 2 is 60-90 degrees, and the radian and the material of the transition plate 2 are the same as those of the pipeline 1. The baffle plates 4 are fixed on two sides of the pipe bracket 3, and the pipe bracket 3 is placed on the cross beam 8. The pipe bracket 3 is formed by welding a vertically placed steel plate and a horizontally placed steel plate with the thickness of 6-14 mm. Baffle 4 is fixed on crossbeam 8, is located the conduit saddle 3 both sides, and baffle 4 comprises two angle steel, presents the "L" form of inversion and places. Roof 5 welded fastening just above pipeline 1 and along pipeline 1 axial arrangement, roof 5 is rectangular steel sheet, and material and thickness all are the same with pipeline 1, and roof 5 upper portion is equipped with the trompil that quantity and size and metal connecting hole 62 are unanimous.

Finally, the metal connecting hole 62 at one end of the connecting wire 6 is connected with the opening at the vertical end of the junction plate 7 through a fastener. The other end metal connection hole 62 of the connection line 6 is connected with the opening of the top plate 5 through a fastener, and the connection line 6 comprises a flexible copper woven belt 61 and a plurality of metal connection holes 62 arranged at two ends of the flexible copper woven belt 61.

The utility model discloses utilize crossbeam 8 and longeron 9 on the piping lane as ground connection connecting conductor, can connect the ground connection of many pipelines 1 simultaneously to the joint board 7 through connecting wire 6 in unison, at last in unison be connected to earthing pole 12. The high temperature high pressure pipeline is mostly in industrial production, different kinds of pipeline can produce the different displacement volume of various directions because of the temperature difference, this device adopts longer flexible copper braid over braid can eliminate the influence of different pipelines deformation to the junction after being heated, not only can practice thrift the investment, and construction convenience is favorable to the maintenance management in later stage, be convenient for make up the position of earthing pole, be applicable to the connection of multiple pipeline under the different temperatures, satisfy many overhead pipelines comprehensive electrostatic grounding's on the piping lane requirement, have very strong popularization nature.

Claims (10)

1. The utility model provides a piping lane electrostatic grounding device for realize the ground connection of piping lane interior pipeline (1), its characterized in that, the device is including fixing two longerons (9) on the ground, with two longerons (9) mutual welded crossbeam (8), the L type of welding on crossbeam (8) meet fishplate bar (7) and weld disconnected fishplate bar (10) in two longerons (9) side respectively, disconnected fishplate bar (10) be connected with buried earth electrode (12) underground through ground plate (11), pipeline (1) install on crossbeam (8) to be connected with meeting fishplate bar (7) through connecting wire (6).

2. The electrostatic grounding device for the pipe gallery according to claim 1, characterized in that the connecting wire (6) is a flexible copper woven belt (61) with metal connecting holes (62) at two ends, one end of the flexible copper woven belt (61) is connected with the vertical plate of the joint plate (7) through the metal connecting hole (62), the other end of the flexible copper woven belt is connected with the top plate (5) welded on the top of the pipeline (1) through the metal connecting hole (62), and the length of the connecting wire (6) is greater than the linear distance between the top plate (5) and the joint plate (7).

3. The pipe gallery electrostatic grounding device according to claim 1, wherein the pipe (1) is sequentially welded with the transition plate (2) and the pipe bracket (3) and then placed on the cross beam (8), the transition plate (2) is an arc-shaped plate which is arranged right below the pipe (1) and is symmetrically arranged by taking the axis of the pipe (1) as a central line, and the arc center angle corresponding to the arc-shaped plate is 60-90 degrees.

4. A pipe gallery electrostatic grounding device according to claim 3, characterized in that the pipe bracket (3) is welded to each other in an inverted T shape by a vertical steel plate and a horizontal steel plate with a thickness of 6-14mm, the horizontal steel plate is disposed on the cross beam (8) and is limited by the baffle plate (4).

5. The electrostatic grounding device for the pipe gallery according to claim 4, characterized in that the baffle (4) is composed of two angle steels in an inverted L shape, and the horizontal steel plate is arranged in a limiting space in the middle of the two angle steels in the inverted L shape.

6. The electrostatic grounding device for pipe gallery according to claim 2, characterized in that the top plate (5) is a rectangular steel plate, is welded and fixed right above the pipe (1) along the axial direction of the pipe (1), and is made of the same material and thickness as the pipe (1), and the upper part of the top plate (5) is provided with openings with the same number and size as the metal connecting holes (62).

7. The pipe rack electrostatic grounding device according to claim 1, characterized in that the disconnection plate (10) comprises an upper disconnection plate (101) and a lower disconnection plate (102), the upper disconnection plate (101) and the lower disconnection plate (102) are both L-shaped, a vertical plate of the upper disconnection plate (101) is welded on the side surface of the longitudinal beam (9), a gap is formed between the vertical plate of the lower disconnection plate (102) and the side surface of the longitudinal beam (9), a horizontal plate of the upper disconnection plate (101) and a horizontal plate of the lower disconnection plate (102) are provided with through holes and are connected with each other through fasteners, and the vertical plate of the lower disconnection plate (102) is connected with the ground plate (11).

8. The electrostatic grounding device for pipe gallery according to claim 7, wherein the vertical plate of the upper breaking plate (101) has a height of 800mm from the ground, the grounding plate (11) is a galvanized flat steel plate with a buried depth of more than 500mm, and the grounding electrode (12) is a galvanized angle steel with a depth of more than 3000 mm.

9. The electrostatic grounding device for the pipe gallery according to claim 2, wherein the connection plate (7) comprises a horizontal plate and a vertical plate, the vertical plate is provided with holes with the same number and size as the metal connecting holes (62), the metal connecting holes (62) at one end of the connecting wire (6) are connected with the corresponding holes on the vertical plate of the connection plate (7) through fasteners, and the horizontal plate of the connection plate (7) is welded and fixed on the cross beam (8).

10. A pipe rack electrostatic grounding device according to claim 1, characterized in that a plurality of pipe rack electrostatic grounding devices are arranged in the pipe rack along the extending direction of the pipeline (1), and the cross beams (8) and the longitudinal beams (9) are all H-shaped steel.

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