CN211033758U - High-protection-level double-power lightning diverter - Google Patents
High-protection-level double-power lightning diverter Download PDFInfo
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- CN211033758U CN211033758U CN201921514568.XU CN201921514568U CN211033758U CN 211033758 U CN211033758 U CN 211033758U CN 201921514568 U CN201921514568 U CN 201921514568U CN 211033758 U CN211033758 U CN 211033758U
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Abstract
The utility model relates to a high protection level double dynamical thunder and lightning shunt, including installing support, winding mechanism, copper braid over braid and prevent wind pendulum subassembly; the winding mechanism comprises a fixed main shaft, a winding barrel and a rotary assembly, the fixed main shaft is fixedly arranged on the mounting support, the winding barrel is rotatably arranged on the fixed main shaft, the rotary assembly is provided with two groups which are respectively and fixedly arranged on two sides of the winding barrel, the winding barrel is lower than the rotary assembly, the copper braided belt is wound on the winding barrel and positioned between the rotary assemblies on the two sides, and the rotary assembly can force the copper braided belt to be recovered and wound on the winding barrel; prevent wind pendulum subassembly and include unable adjustment base and spacing ring, unable adjustment base fixed set up on the installing support, the spacing ring has two and fixed the setting on unable adjustment base respectively, and the spacing ring is located winding barrel both sides, and the spacing ring is higher than the gyration subassembly. The power is strong, and the operation is reliable.
Description
Technical Field
The utility model relates to a static technical field, concretely relates to thunder and lightning shunt are prevented in the lightning protection.
Background
Large crude oil storage tanks are typically floating roof tanks, the floating deck of which floats on the crude oil when in use. Currently, in order to prevent the crude oil and steam from leaking from the edge of the float, it is common to seal it, which is done with a non-conductive material, typically nitrile rubber, which electrically insulates the float from the tank wall, making it an isolated conductor. Because of the high resistivity of crude oil, the crude oil can generate a large amount of static charges when lightning happens and the crude oil is quickly canned, the charges are gradually transferred to a conductor with attractive force with opposite charges, the floating disc collects the static charges of the crude oil under the influence of the low potential of the tank wall, the induction voltage of the static charges can reach hundreds of kilovolts, the air breakdown voltage is about 500kV/m, the gap between a standard floating disc and the tank wall is about 250mm, the gap between the floating disc and the tank wall can be reduced due to the aging of sealing materials and process deviation, the static charge induction voltage between the floating disc and the tank wall can form ignition flashover discharge when the static charge induction voltage is about 100kV, and once the aging oil and steam of the sealing materials overflow, a fire accident. The national standards 'oil depot design code' (GB 50074-2002) and 'lightning safety code for oil and oil facilities' (GB15599-95) have clear regulations on lightning protection and anti-static grounding of floating discs: the floating roof oil tank or the inner floating roof oil tank should not be provided with a lightning rod, but the floating roof and the tank body should be electrically connected by 2 wires. The connecting wire of the floating roof oil tank is a soft copper composite stranded wire with the cross section not less than 25mm 2. For the internal floating roof oil tank, the steel floating plate oil tank connecting lead is a soft copper composite stranded wire with the cross section not less than 16mm 2; the connecting lead of the aluminum floating plate oil tank is a stainless steel wire rope with the diameter not less than 1.8 mm. The traditional lightning protection and anti-static grounding mode of the floating plate of the crude oil storage tank generally adopts two 25mm2 soft copper composite stranded wires to be connected with the floating plate by the top end of the tank wall of the storage tank according to the length larger than the height of the tank, when the floating plate rises along with the liquid level, the soft copper composite stranded wires are scattered on the floating plate, and the crude oil and gas contain sulfur and wind and rain to make the soft copper composite stranded wires extremely easy to corrode, so that potential safety hazards exist.
Therefore, a floating roof tank lightning current shunt is mostly adopted at home and abroad for lightning protection. The lightning current shunt adopts a plane volute spiral spring to be fixed on one end of the shell and the rotating shaft, the copper braided belt is fixedly wound on the other end of the rotating shaft, and the expansion of the copper braided belt is controlled by the elasticity of the plane volute spiral spring. In practical use, when the structure is in windy weather, the copper braided belt is blown, so that the copper braided belt is frequently extended and retracted. Frequent stretching vibrations can cause elastic fatigue and even breakage of the flat spiral spring within the device. Once the elasticity of the spiral spring is reduced and even broken, the braided belt can not be retracted into the equipment and scattered on the floating plate.
Therefore, it is an urgent problem to be solved by those skilled in the art to improve the conventional lightning current shunt to overcome the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a pair of powerful, the reliable double dynamical thunder and lightning shunt of high protection level of operation.
In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a double dynamical thunder and lightning shunt of high protection level which characterized in that: the wind-proof pendulum assembly comprises a mounting bracket, a winding mechanism and a wind-proof pendulum assembly;
the mounting bracket is used for supporting the winding mechanism and the windproof swing assembly and is suitable for being fixedly connected to equipment;
the winding mechanism comprises a fixed main shaft, a winding cylinder, rotary assemblies and copper braided straps, the fixed main shaft is fixedly arranged on the mounting bracket, the winding cylinder is rotatably arranged on the fixed main shaft, the rotary assemblies are provided with two groups which are respectively and fixedly arranged on two sides of the winding cylinder, the winding cylinder is lower than the rotary assemblies, the copper braided straps are wound on the winding cylinder and positioned between the rotary assemblies on two sides, and the rotary assemblies can force the copper braided straps to be recovered and wound on the winding cylinder;
prevent wind pendulum subassembly includes unable adjustment base and spacing ring, unable adjustment base fixed set up in on the installing support, the spacing ring have two and respectively fixed set up in unable adjustment base is last, the spacing ring is located twine barrel both sides, just the spacing ring is higher than the gyration subassembly.
Preferably, the rotation assembly comprises a rotation housing and a spiral spring, the rotation housing is concentrically fixed on the winding cylinder, the fixed main shaft penetrates through the rotation housing, the spiral spring is arranged in the rotation housing, the inner end of the spiral spring is fixedly connected to the fixed main shaft, and the outer end of the spiral spring is fixedly connected to the rotation housing.
As an improvement, cross rods are arranged between the limiting rings on two sides, at least one cross rod is fixedly provided with a backstop needle, and the direction of the backstop needle is opposite to the curling direction of the volute spiral spring. The arrangement of the cross rod can strengthen the structure of the windproof pendulum component on one hand and provide a mounting position for the check needle on the other hand. The stopping needle is used for abutting against the copper braided belt on the outermost side when the copper braided belt is completely retracted, so that the winding barrel can only rotate along the opposite direction of the curling direction of the volute spiral spring, namely, the copper braided belt can only be pulled out from the direction, and the normal use of the shunt is ensured.
Preferably, a bearing is arranged between the winding cylinder and the fixed main shaft, the bearing is fixedly arranged on the fixed main shaft through a clamp spring, and a gasket is arranged between the bearing and the rotary shell. The bearing is a common rotary connection structure, and the arrangement of the gasket can ensure that a certain gap is kept between the rotary shell and the bearing inner ring, so that interference during rotation is avoided; the shaft snap spring ensures the positioning of the inner ring of the bearing.
As an improvement, a compression ring is arranged between the outer side surface of the rotary shell and the fixed main shaft, and a bidirectional sealing ring is arranged in the compression ring. The sealing performance of the rotary shell can be ensured by the bidirectional sealing ring, and higher protection requirements are realized.
Preferably, anti-rotation flanges are arranged on two sides of the mounting support, and the fixing main shaft penetrates through the anti-rotation flanges and is fixedly arranged on the mounting support through fixing screws. The anti-rotation flange structurally limits free rotation of the fixed main shaft, and the fixed main shaft is guaranteed to be fixed in work.
Preferably, handles are arranged on two sides of the mounting bracket, and the handles are hinged to the mounting bracket. The lightning shunt is conveniently removed in the setting of handle, and the handle free state is flagging, does not occupy extra space, compact structure.
The working principle is as follows: when the floating plate of the crude oil storage tank floats upwards, the volute spiral spring drives the rotary shell, the winding cylinder and the copper woven belt to realize recovery, and the copper woven belt is kept in an optimal state. When the position of the floating plate of the crude oil storage tank descends, the copper braided belt pulls the whole winding mechanism, including the rotary shell, the volute spiral spring and the winding cylinder to rotate simultaneously.
Compared with the prior art, the utility model has the advantages of it is following: the two rotary assemblies are arranged, so that the reliability of the winding mechanism of the lightning diverter is improved, and the copper braided belt can be effectively withdrawn when a single volute spiral spring is broken; the double-power rotating structure is more balanced in stress, more reliable in operation and stronger in power; meanwhile, on the premise of the same rewinding force, the outer diameter size is smaller after the double-plane volute spiral spring is adopted, so that the overall structure of the lightning diverter is more compact and small.
The windproof swing mechanism can effectively prevent the copper braided belt from deviating from the lightning diverter due to swing of unexpected factors, and normal use of the lightning diverter is guaranteed.
Drawings
Fig. 1 is a schematic perspective view of a preferred embodiment of the present invention;
fig. 2 is an exploded view of a preferred embodiment according to the present invention;
fig. 3 is a half sectional view of a preferred embodiment according to the present invention;
fig. 4 is an enlarged view of fig. 3 at a according to a preferred embodiment of the present invention;
fig. 5 is an enlarged view of fig. 3 at B according to a preferred embodiment of the present invention;
fig. 6 is an exploded view of a winding mechanism according to a preferred embodiment of the present invention.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.
In the description of the present invention, it should be noted that, for the orientation words, if there are terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and positional relationship indicated are based on the orientation or positional relationship shown in the drawings, and only for the convenience of describing the present invention and simplifying the description, it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and not be construed as limiting the specific scope of the present invention.
As shown in fig. 1 to 6, a preferred embodiment of the present invention comprises a mounting bracket 1, a winding mechanism 2, a copper braided belt 3, a wind-proof pendulum assembly 4 and a retaining needle 5; specifically, the method comprises the following steps:
the mounting bracket 1 is used for supporting the winding mechanism 2 and the windproof pendulum assembly 4, and the mounting bracket 1 is suitable for being fixedly connected to equipment. Handles 13 are arranged on two sides of the mounting bracket 1, and the handles 13 are hinged on the mounting bracket 1.
The winding mechanism 2 comprises a fixed main shaft 21, a winding cylinder 22 and rotary assemblies 23, the fixed main shaft 21 is fixedly arranged on the mounting support 1, the winding cylinder 22 is rotatably arranged on the fixed main shaft 21, the rotary assemblies 23 are provided with two groups and respectively fixedly arranged on two sides of the winding cylinder 22, the winding cylinder 22 is lower than the rotary assemblies 23, the copper braided belt 3 is wound on the winding cylinder 22 and positioned between the rotary assemblies 23 on the two sides, and the rotary assemblies 23 can force the copper braided belt 3 to be recovered and wound on the winding cylinder 22; revolving assembly 23 includes revolving housing 231 and spiral spring 232, and revolving housing 23 is fixed concentrically on winding barrel 22, and fixed main shaft 21 passes revolving housing 231, and spiral spring 232 sets up in revolving housing 231, and spiral spring 232 inner end fixed connection is on fixed main shaft 21, and spiral spring 232 outer end fixed connection is on revolving housing 231. The rotary housing 231 of the present embodiment is formed by hermetically connecting a rotary disk 231a and a rotary cover 231b, and a rotary cavity is formed inside the rotary housing for accommodating a spiral spring 232; in the present embodiment, the wrap spring 232 is fixed to the rotary housing 231 by the wrap spring post 233.
Prevent wind pendulum subassembly 4 includes unable adjustment base 41 and spacing ring 42, and unable adjustment base 41 is fixed to be set up on installing support 1, and spacing ring 42 has two and respectively fixed to be set up on unable adjustment base 41, and spacing ring 42 is located winding barrel 22 both sides, and spacing ring 42 is higher than gyration subassembly 23. A cross bar 43 is arranged between the limiting rings 42 on the two sides.
The retaining needle 5 is disposed on a cross bar 43, and the retaining needle 5 is oriented in the opposite direction to the winding direction of the spiral spring 232.
In this embodiment, a bearing 24 is disposed between the winding cylinder 22 and the fixed main shaft 21, the bearing 24 is fixedly disposed on the fixed main shaft 21 by a snap spring 241, and a spacer 242 is disposed between the bearing 24 and the rotary housing 231. A pressing ring 25 is provided between the outer side surface of the rotary housing 231 and the fixed main shaft 21, and a two-way seal ring 26 is provided in the pressing ring 25. Anti-rotation flanges 11 are arranged on two sides of the mounting bracket 1, and a fixing main shaft 21 penetrates through the anti-rotation flanges 11 and is fixedly arranged on the mounting bracket 1 through fixing screws 12.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a double dynamical thunder and lightning shunt of high protection level which characterized in that: the wind-proof pendulum comprises a mounting bracket, a winding mechanism, a copper braided belt and a wind-proof pendulum assembly;
the mounting bracket is used for supporting the winding mechanism and the windproof swing assembly and is suitable for being fixedly connected to equipment;
the winding mechanism comprises a fixed main shaft, a winding cylinder and rotary components, the fixed main shaft is fixedly arranged on the mounting support, the winding cylinder is rotatably arranged on the fixed main shaft, the rotary components are provided with two groups and respectively fixedly arranged on two sides of the winding cylinder, the winding cylinder is lower than the rotary components, the copper braided belt is wound on the winding cylinder and positioned between the rotary components on the two sides, and the rotary components can force the copper braided belt to be recovered and wound on the winding cylinder;
prevent wind pendulum subassembly includes unable adjustment base and spacing ring, unable adjustment base fixed set up in on the installing support, the spacing ring have two and respectively fixed set up in unable adjustment base is last, the spacing ring is located twine barrel both sides, just the spacing ring is higher than the gyration subassembly.
2. The high protection class dual-power lightning diverter according to claim 1, wherein: the rotary assembly comprises a rotary shell and a spiral spring, the rotary shell is concentrically fixed on the winding barrel, the fixed main shaft penetrates through the rotary shell, the spiral spring is arranged in the rotary shell, the inner end of the spiral spring is fixedly connected to the fixed main shaft, and the outer end of the spiral spring is fixedly connected to the rotary shell.
3. The high protection class dual-power lightning diverter according to claim 2, wherein: and cross rods are arranged between the limiting rings on two sides, at least one cross rod is fixedly provided with a backstop needle, and the direction of the backstop needle is opposite to the curling direction of the volute spiral spring.
4. The high protection class dual-power lightning diverter according to claim 2, wherein: the winding barrel with be provided with the bearing between the fixed main shaft, the bearing pass through the jump ring fixed set up in on the fixed main shaft, the bearing with be provided with the gasket between the gyration casing.
5. The high protection class dual-power lightning diverter according to claim 2, wherein: and a compression ring is arranged between the outer side surface of the rotary shell and the fixed main shaft, and a two-way sealing ring is arranged in the compression ring.
6. The high protection class dual-power lightning diverter according to claim 2, wherein: and anti-rotation flanges are arranged on two sides of the mounting bracket, and the fixed main shaft penetrates through the anti-rotation flanges and is fixedly arranged on the mounting bracket through a fixing screw.
7. The high protection class dual-power lightning diverter according to any one of claims 1 to 6 is characterized in that: handles are arranged on two sides of the mounting support and hinged to the mounting support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921514568.XU CN211033758U (en) | 2019-09-11 | 2019-09-11 | High-protection-level double-power lightning diverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921514568.XU CN211033758U (en) | 2019-09-11 | 2019-09-11 | High-protection-level double-power lightning diverter |
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| Publication Number | Publication Date |
|---|---|
| CN211033758U true CN211033758U (en) | 2020-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921514568.XU Active CN211033758U (en) | 2019-09-11 | 2019-09-11 | High-protection-level double-power lightning diverter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110539983A (en) * | 2019-09-11 | 2019-12-06 | 宁波依本立流体装备制造有限公司 | High-protection-level double-power lightning diverter |
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2019
- 2019-09-11 CN CN201921514568.XU patent/CN211033758U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110539983A (en) * | 2019-09-11 | 2019-12-06 | 宁波依本立流体装备制造有限公司 | High-protection-level double-power lightning diverter |
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