CN202575119U - Anti-swing component of retractable grounding device - Google Patents
Anti-swing component of retractable grounding device Download PDFInfo
- Publication number
- CN202575119U CN202575119U CN 201220163609 CN201220163609U CN202575119U CN 202575119 U CN202575119 U CN 202575119U CN 201220163609 CN201220163609 CN 201220163609 CN 201220163609 U CN201220163609 U CN 201220163609U CN 202575119 U CN202575119 U CN 202575119U
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- storehouse
- ground wire
- pendulum parts
- earth
- telescopic
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Abstract
The utility model discloses an anti-swing component of a retractable grounding device. The anti-swing component is arranged on the lower portion of the retractable grounding device which comprises a reel type ground wire bin for reeling and releasing a ground cable and an unreel bin for controlling the ground wire bin to reel and release the ground cable automatically. The anti-swing component is arranged on the lower portion of the ground wire bin which is fixedly connected with one end of the ground cable, and the other end of the ground cable penetrates through the anti-swing component and is connected with a floating disk of a floating roof tank. The anti-swing component is in a U-shaped structure and provided with a retaining rib which matches with the blind end of the U-shaped structure to form an enclosed wire lead-out bin, the opening end matches with the retractable grounding device and are fixed on a support of the floating roof tank, the ground cable penetrates through the wire lead-out bin, and the width of the wire lead-out bin is larger than that of the ground cable. The anti-swing component has the advantages of being simple in structure, convenient to install and low in cost.
Description
Technical field
The utility model relates to a kind of elimination crude oil floating roof tank secondary arc lightning protection anti electrostatic grounding device, especially a kind of spacing windproof pendulum parts of earth cable that are used for telescopic earth system.
Background technology
Large-scale crude oil basin is generally floating roof tank, and its floating plate swims in above the crude oil during use.At present, leak from the edge of floating plate in order to prevent crude oil oil vapour, usually with its sealing, this sealing is accomplished by non-conductive material, generally is government rubber, and this material can make electric insulating between floating plate and the tank skin, makes floating plate become isolated conductor.Because crude oil electrical resistivity is higher, thunder and lightning take place and during the quick tinning of crude oil crude oil all can produce a large amount of static charges, these electric charges will little by little be transferred on the conductor that gravitation is arranged that has an opposite charges; To collect the crude oil static charge owing to receive the tank skin earth potential to influence floating plate, the induced voltage of this static charge can reach up to a hundred kilovolts, and air breakdown voltage is about 500kV/m; Standard floating plate and tank skin gap are about 250mm; Because leakproofing material is aging and process deviation, floating plate and tank skin gap can dwindle, and static charge induced voltage between the two can form the spill over of igniting property when being about 100kV; In case leakproofing material ageing oil vapour overflows, and can cause fire accident.
National standard " Code for design of petroleum depots " (GB 50074-2002) and " oil and petroleum installations thunder and lightning safety standard " (GB15599-95) all have clearly regulation to floating plate lightning protection, anti static grounding: " floater or covered floating roof tank should not installed discharging rod, but should make of 2 leads and be electrically connected floating top and tank body.The floater connecting wire should select for use cross-sectional plane to be not less than 25mm
2The multiple twisted wire of soft copper.For covered floating roof tank, steel floating plate oil tank connecting wire should select for use cross-sectional plane to be not less than 16mm
2The multiple twisted wire of soft copper; Aluminium matter floating plate oil tank connecting wire should select for use diameter to be not less than the corrosion-resistant steel steel rope of 1.8mm ".The traditional lightning protection of crude oil basin floating plate, anti static grounding mode generally adopt two 25mm
2The multiple twisted wire of soft copper by tank wall top section by being connected with floating plate greater than the high length of jar; The multiple twisted wire of soft copper is scattered on the floating plate when floating plate raises with liquid level; Because crude oil vapor sulfur-bearing and exposing to wind and rain very easily corrodes the multiple twisted wire of this soft copper, thereby has potential safety hazard.
The patent No. of applying for before the applicant is method and the device thereof that the Chinese utility model patent of ZL02131455.1 discloses a kind of eliminating secondary arc by floater; This method is to utilize the floating roof tank electrostatic conducting device that is fixed on the floating roof tank top; One end of its earth cable is fixed on this device; The other end is connected on the floating plate, and when floating plate descended or rise, earth cable can stretch out or rolls recovery automatically with floating plate automatically; And make earth cable remain tension, thereby set up electric path good between the tank body of floating plate and floating roof tank and eliminate secondary arc effectively.Above-mentioned floating roof tank electrostatic conducting device comprise support, the fixed-bearing axis that is fixed on the tank body, the ground wire storehouse assembly set that is wound with earth cable and one of which side spring storehouse assembly set, be connected the guide ring of assembly set another side, ground wire storehouse, the elasticity flow deflector and the labyrinth packing conducting ring that slip with guide ring, fixedly ground wire, peripheral zone have the flow deflector of the flange that stretches out to tighten nut, locknut, stage clip.
But the applicant finds that after long-term use when extraneous wind speed was big, earth cable was scraped in the ground wire storehouse by wind easily; And when extraneous wind speed hour, earth cable is easy shaking and the friction of edge, ground wire storehouse also, the wearing and tearing of increase earth cable reduce service life.
In view of this special the utility model that proposes.
The utility model content
The technical matters that the utility model will solve is to overcome the deficiency of prior art, provides a kind of and is used to prevent that earth cable from being scraped the normal windproof pendulum parts of telescopic earth system that use of influence by wind.
For solving the problems of the technologies described above; The utility model adopts the basic design of technical scheme to be: the windproof pendulum parts of a kind of telescopic earth system; Be installed on the below of telescopic earth system, telescopic earth system comprises the ground wire storehouse of disk type folding and unfolding earth cable and the backrush storehouse of control ground wire storehouse automatic deploying and retracting earth cable, and described windproof pendulum parts are located at the below in ground wire storehouse; Earth cable one end and ground wire storehouse are affixed, and the other end passes windproof pendulum parts and is connected with the floating plate of floating roof tank.
Further scheme does; Described windproof pendulum parts are the U-shaped structure; Also be provided with a retaining muscle, cooperate with the closed end of U-shaped structure to constitute all around that the osed top lead stretches out the storehouse, open end and telescopic earth system matching and fixing are on the floating roof tank support; Earth cable passes lead and stretches out the storehouse, and lead stretches out the width of storehouse width greater than earth cable.
It is the smooth structure that reduces with the earth cable friction that described lead stretches out wall around the storehouse.
Described retaining muscle is provided with the guide needle that prevents the earth cable counter-rotating.
Described windproof pendulum parts are the arcuate structure that cooperates with the ground wire storehouse, and the circular arc degree is greater than the cooresponding cylindrical in ground wire storehouse, and closed end is higher than the center of turn in ground wire storehouse, and open end is lower than the center of turn in ground wire storehouse.
The coaxial setting in described backrush storehouse and ground wire storehouse; Be installed on the floating roof tank support through two swinging struts, swinging strut is a ∨ shape structure, and two ∨ shape swinging strut one ends arranged side by side are horizontally fixed on the floating roof tank support; Other end K/UP; Be connected to form one in the end, two swinging struts are near the horizontal pivot shaft in bending place, and backrush storehouse and ground wire storehouse are supported between two swinging struts through this pivot shaft.
Described ground wire storehouse comprises spool spindle and the coaxial two line storehouse baffle plates that are located on the spool spindle that are enclosed within on the pivot shaft, and earth cable is wound on the spool spindle between the two line storehouse baffle plates.
Described backrush storehouse is elasticity backrush storehouse, and inside is provided with when floating plate descends or rise the control earth cable and stretches out automatically with floating plate or roll automatically and reclaim and make earth cable remain the spring assembly of tension.
Described ∨ shape swinging strut bending angle is 90 °-160 °, preferably 100 °-150 °.
The angle that described windproof pendulum parts closed end is higher than ground wire storehouse center of turn is at least 5 °, and the line that promptly windproof pendulum parts most significant end also is closed end a to center of turn and the angle of vertical axis are not less than 95 °.Earth cable is when stretching out and regain, and the angle of earth cable and ground wire storehouse center of turn can change, when floating plate during in the highest liquid level for preventing earth cable and windproof pendulum parts excessive friction, so angle will guarantee more than 5 °.
After adopting technique scheme, the utility model compared with prior art has following beneficial effect.
The described windproof pendulum parts of the utility model are installed in the below of telescopic earth system line storehouse baffle plate, and are with floating roof tank support weld together, simple in structure, easy for installation; The line of windproof pendulum parts most significant end to center of turn and the angle of vertical axis are not less than 95 °, guarantee that earth cable can stretch in the floating plate upgrading freely, is not obstructed; Width when the lead of windproof pendulum parts stretches out the storehouse width greater than the earth cable free state guarantees not receive when earth cable stretches out and shrinks jam; The circular arc degree of windproof pendulum parts is slightly larger than ground wire storehouse cylindrical, guarantees not collide with the ground wire storehouse after windproof pendulum parts are installed.After the described windproof pendulum device of the utility model was installed, earth cable stretched out the storehouse from lead and passes, and when extraneous wind speed is big, prevented that earth cable from scraping in the ground wire storehouse; At extraneous wind speed hour, prevent that earth cable and edge, ground wire storehouse from rubbing, and reduces the wearing and tearing of earth cable.
Be described in further detail below in conjunction with the specific embodiment of accompanying drawing the utility model.
Description of drawings
Fig. 1 is the windproof pendulum block diagram of the telescopic earth system of the utility model;
Fig. 2 is the windproof pendulum block diagram of the utility model;
Fig. 3 is that the A of windproof pendulum parts among Fig. 2 is to scheme drawing;
Fig. 4 is the mounting structure scheme drawing of telescopic earth system of the utility model and windproof pendulum parts.
The specific embodiment
Extremely shown in Figure 4 like Fig. 1; The windproof pendulum parts 1 of the described telescopic earth system of the utility model; Be installed on the below of telescopic earth system 2; Telescopic earth system 2 comprises the ground wire storehouse 4 of disk type folding and unfolding earth cable 3 and the backrush storehouse 5 of control ground wire storehouse 4 automatic deploying and retracting earth cables 3, and described windproof pendulum parts 1 are located at the below in ground wire storehouse 4, and earth cable 3 one ends and ground wire storehouse 4 are affixed; The other end pass windproof pendulum parts 1 be connected with the floating plate of floating roof tank (not shown, but the application reference people before the application patent ZL02131455.1).
Described backrush storehouse 5 and the 4 coaxial settings of ground wire storehouse; Be installed on the floating roof tank support 7 through two swinging struts 6, swinging strut 6 is a ∨ shape structure, and two ∨ shape swinging strut 6 one ends arranged side by side are horizontally fixed on the floating roof tank support 7; Other end K/UP; Be connected to form one in the end, two swinging struts 6 are near the horizontal pivot shaft 61 (consulting Fig. 4) in bending place, and backrush storehouse 5 and ground wire storehouse 4 are supported between two swinging struts 6 through this pivot shaft 61.
Described ground wire storehouse 4 comprises spool spindle and the coaxial two line storehouse baffle plates 41 that are located on the spool spindle that are enclosed within on the pivot shaft 61, and earth cable 3 is wound on the spool spindle between the two line storehouse baffle plates 41.
Described backrush storehouse 5 is elasticity backrush storehouse; Inside is provided with when floating plate descends or rise the control earth cable and stretches out automatically with floating plate or roll automatically and reclaim and make earth cable remain the spring assembly of tension, and this structure can be consulted the existing files in the background technology.
As shown in Figure 3; The described windproof pendulum parts 1 of the utility model are the U-shaped structure; Also be provided with a retaining muscle 11, cooperate with the closed end of U-shaped structure to constitute all around that the osed top lead stretches out storehouse 12, open end and telescopic earth system matching and fixing are on floating roof tank support 7; Earth cable 3 passes lead and stretches out storehouse 12, and lead stretches out the width of storehouse 12 width greater than earth cable; It is the smooth structure that reduces with the earth cable friction that described lead stretches out wall around the storehouse 12; Described retaining muscle 11 is provided with the guide needle 13 that prevents the earth cable counter-rotating.
Further; Described windproof pendulum parts 1 are the arcuate structure that cooperates with ground wire storehouse 4; The circular arc degree is greater than ground wire storehouse 4 cooresponding cylindricals, and closed end B is higher than the center of turn O in ground wire storehouse 4, and open end C is lower than the center of turn O in ground wire storehouse 4; The height difference H of closed end B and open end C vertical direction is r/4-r, and r is the arc radius (participation Fig. 2) of windproof pendulum parts.
As shown in Figure 1, described ∨ shape swinging strut bending angle α is 90 °-160 °, preferably 100 °-150 °; Described windproof pendulum parts closed end is higher than at least 5 ° of the angle betas of the center of turn in ground wire storehouse, and also to be closed end B be not less than 95 ° (participation Fig. 2) to the line of center of turn and the angle γ of vertical axis to promptly windproof pendulum parts most significant end.
Embodiment in the foregoing description can further make up or replace; And embodiment describes the preferred embodiment of the utility model; Be not that design and scope to the utility model limits; Under the prerequisite that does not break away from the utility model design philosophy, the various changes and modifications that the professional and technical personnel makes the technical scheme of the utility model in this area all belong to the protection domain of the utility model.
Claims (10)
1. windproof pendulum parts of telescopic earth system; Be installed on the below of telescopic earth system; Telescopic earth system comprises the ground wire storehouse of disk type folding and unfolding earth cable and the backrush storehouse of control ground wire storehouse automatic deploying and retracting earth cable; It is characterized in that: described windproof pendulum parts are located at the below in ground wire storehouse, and earth cable one end and ground wire storehouse are affixed, and the other end passes windproof pendulum parts and is connected with the floating plate of floating roof tank.
2. the windproof pendulum parts of a kind of telescopic earth system according to claim 1; It is characterized in that: described windproof pendulum parts are the U-shaped structure; Also be provided with a retaining muscle, cooperate with the closed end of U-shaped structure to constitute all around that the osed top lead stretches out the storehouse, open end and telescopic earth system matching and fixing are on the floating roof tank support; Earth cable passes lead and stretches out the storehouse, and lead stretches out the width of storehouse width greater than earth cable.
3. the windproof pendulum parts of a kind of telescopic earth system according to claim 2 is characterized in that: it is the smooth structure that reduces with the earth cable friction that described lead stretches out wall around the storehouse.
4. the windproof pendulum parts of a kind of telescopic earth system according to claim 2 is characterized in that: described retaining muscle is provided with the guide needle that prevents the earth cable counter-rotating.
5. the windproof pendulum parts of a kind of telescopic earth system according to claim 2; It is characterized in that: described windproof pendulum parts are the arcuate structure that cooperates with the ground wire storehouse; The circular arc degree is greater than the cooresponding cylindrical in ground wire storehouse; Closed end is higher than the center of turn in ground wire storehouse, and open end is lower than the center of turn in ground wire storehouse.
6. the windproof pendulum parts of a kind of telescopic earth system according to claim 1; It is characterized in that: the coaxial setting in described backrush storehouse and ground wire storehouse; Be installed on the floating roof tank support through two swinging struts, swinging strut is a ∨ shape structure, and two ∨ shape swinging strut one ends arranged side by side are horizontally fixed on the floating roof tank support; Other end K/UP; Be connected to form one in the end, two swinging struts are near the horizontal pivot shaft in bending place, and backrush storehouse and ground wire storehouse are supported between two swinging struts through pivot shaft.
7. the windproof pendulum parts of a kind of telescopic earth system according to claim 6; It is characterized in that: described ground wire storehouse comprises spool spindle and the coaxial two line storehouse baffle plates that are located on the spool spindle that are enclosed within on the pivot shaft, and earth cable is wound on the spool spindle between the two line storehouse baffle plates.
8. the windproof pendulum parts of a kind of telescopic earth system according to claim 7; It is characterized in that: described backrush storehouse is elasticity backrush storehouse, and inside is provided with when floating plate descends or rise the control earth cable and stretches out automatically with floating plate or roll automatically and reclaim and make earth cable remain the spring assembly of tension.
9. the windproof pendulum parts of a kind of telescopic earth system according to claim 6 is characterized in that: described ∨ shape swinging strut bending angle is 90 °-160 °.
10. the windproof pendulum parts of a kind of telescopic earth system according to claim 5 is characterized in that: the angle that described windproof pendulum parts closed end is higher than ground wire storehouse center of turn is at least 5 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220163609 CN202575119U (en) | 2012-04-17 | 2012-04-17 | Anti-swing component of retractable grounding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220163609 CN202575119U (en) | 2012-04-17 | 2012-04-17 | Anti-swing component of retractable grounding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202575119U true CN202575119U (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220163609 Expired - Lifetime CN202575119U (en) | 2012-04-17 | 2012-04-17 | Anti-swing component of retractable grounding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202575119U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103738614A (en) * | 2013-12-30 | 2014-04-23 | 克雷特(大连)科技有限公司 | Floating roof metal storage tank lightning protection grounding device |
| CN104691982A (en) * | 2015-03-06 | 2015-06-10 | 翟占江 | Intrinsic safety type floating roof tank anti-thunder anti-static connector |
| CN104875985A (en) * | 2015-04-13 | 2015-09-02 | 江苏飞锦达科技有限公司 | Equipotential connecting device and floater |
| CN109051398A (en) * | 2018-08-28 | 2018-12-21 | 浙江人通电力科技有限公司 | A kind of floating roof tank Equipotential connector |
| 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 |
-
2012
- 2012-04-17 CN CN 201220163609 patent/CN202575119U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103738614A (en) * | 2013-12-30 | 2014-04-23 | 克雷特(大连)科技有限公司 | Floating roof metal storage tank lightning protection grounding device |
| CN104691982A (en) * | 2015-03-06 | 2015-06-10 | 翟占江 | Intrinsic safety type floating roof tank anti-thunder anti-static connector |
| CN104875985A (en) * | 2015-04-13 | 2015-09-02 | 江苏飞锦达科技有限公司 | Equipotential connecting device and floater |
| CN109051398A (en) * | 2018-08-28 | 2018-12-21 | 浙江人通电力科技有限公司 | A kind of floating roof tank Equipotential connector |
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING CHANGHUIDE PETROCHEMICAL TECHNOLOGY CO., L Free format text: FORMER OWNER: SUN YUAN Effective date: 20130930 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130930 Address after: 100044 Beijing city Xicheng District new No. 15 Building No. 10 Lane 206 room Patentee after: Beijing Chang Hui de Petrochemical Technology Co., Ltd. Address before: 100044 Beijing city Xicheng District No. 15 room 1206 emerging East Lane Patentee before: Sun Yuan |
|
| CX01 | Expiry of patent term |
Granted publication date: 20121205 |
|
| CX01 | Expiry of patent term |