CN201381479Y - Anticorrosive device for main cable of suspension bridge - Google Patents
Anticorrosive device for main cable of suspension bridge Download PDFInfo
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- CN201381479Y CN201381479Y CN200920036382U CN200920036382U CN201381479Y CN 201381479 Y CN201381479 Y CN 201381479Y CN 200920036382 U CN200920036382 U CN 200920036382U CN 200920036382 U CN200920036382 U CN 200920036382U CN 201381479 Y CN201381479 Y CN 201381479Y
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- main cable
- dry
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Abstract
The utility model relates to an anticorrosive device for the main cable of a suspension bridge. An air supply part and an exhaust part used for covering the inner side and dredging are arranged between proper vertical clearances during the covering construction of a sealed sheathing layer at the periphery of the main cable; at least one exhaust pipe with exhaust valves is arranged on the exhaust part; dry air is conveyed to the clearance of the steel wire in the main cable from the air feeding part, and then is exhausted from the exhaust part to enable the air inside the main cable to be dry, thereby preventing the steel wire from corroding. In the stage of primary dehumidification of the moist main cable, the exhaust valves are opened to enable dry large-flow air to get in for fast dehumidification; and in the stage of later maintenance of the dried air, the exhaust valves are closed wholly or partially, only dry small-flow can enable the main cable to keep slight positive pressure, thereby preventing external moist air from entering slits on the sealed sheathing layer of the main cable, meeting the requirement of internal dryness, saving the power consumption of a dehumidificating and air feeding system, and prolonging the service life of the dehumidificating and air feeding system.
Description
One, technical field
The utility model relates to a kind of anti-corrosive apparatus of main rope of suspension bridge, is used to remove the moisture of main push-towing rope inside, and main push-towing rope inside is often kept dry.
Two, background technology
Main push-towing rope is one of most important primary structure member of suspension bridge, is called as " lifeline ", and its long term exposure is in atmospheric environment, standing the erosion of various adverse environments, simultaneously, because main push-towing rope is non-exchange member, so the life-span of main push-towing rope directly influences the service life of suspension bridge.Open the rope inspection from the main push-towing rope of external many suspension bridges,, also thoroughly do not solve anticorrosion problem, even also cause the follow-up maintenance expense of great number in some cases though the anticorrosion mode of traditional main push-towing rope is effective in a short time.China's utility model patent " load-bearing with the corrosion protective device of cable " (patent No.: ZL01237379.6) proposed a kind of corrosion protective device of load-bearing usefulness cable, preferably resolve the anticorrosion problem of main rope of suspension bridge, the main push-towing rope that successfully has been used for Runyang Changjiang Highway Bridge is anticorrosion.But from the operating condition analysis, this installs at very long main push-towing rope the later stage of drying maintenance phase, the plenum system high-speed cruising that still need dehumidify, and power consumption is bigger, also influence dehumidifying plenum system self life-span.
Three, summary of the invention
(1) goal of the invention
At the problem that will solve in the above-mentioned prior art, the purpose of this utility model is the anti-corrosive apparatus that proposes a kind of main rope of suspension bridge, the realization main push-towing rope is anticorrosion, and at very long main push-towing rope the later stage of drying maintenance phase, the dehumidifying plenum system only needs low speed or intermittent operation, save power consumption, prolonged the life-span of dehumidifying plenum system.
(2) technical scheme
The purpose of this utility model is achieved in that a kind of anti-corrosive apparatus of main rope of suspension bridge, be included in the main push-towing rope outside and carry out longitudinally between appropriate gap of sealing sheath layer covering construction, be provided with the air feed part and the exhaust portion that are used for covering inboard mediation, be provided with a stack that outlet valve is housed on the exhaust portion at least.Dry air is delivered to the space of steel wire in the main push-towing rope by above-mentioned air feed part, is discharged by the stack of exhaust portion then.
Above-mentioned air feed part and exhaust portion are respectively by cylindrical shape half tubes of material two ends be combined into.
Above-mentioned dry gas is air or the nitrogen of relative humidity below 60%.The pressure limit of above-mentioned dry gas remains in the withstand voltage scope of main push-towing rope outside sealing sheath.
After adopting said structure, in the moist dehumidifying stage at initial stage of main push-towing rope, outlet valve standard-sized sheet on the exhaust portion stack, the dry air of big flow is delivered to the space of steel wire in the main push-towing rope by air feed part, discharge by the stack of exhaust portion then, make the wet environment of main push-towing rope inside be improved into dry environment fast; At main push-towing rope the later stage of drying maintenance phase, outlet valve complete shut-down on the exhaust portion stack or part are closed, because the exhaust local resistance of exhaust portion increases, making only needs the dry air of low discharge just can make the interior dry air pressure of main push-towing rope a little more than external atmosphere pressure (the extraneous blast force value that the malleation value is born greater than main push-towing rope restrictive coating appearance at least), form a kind of sealing gland effect, make the main push-towing rope restrictive coating have only " expiration ", there be not " air-breathing ", make the extraneous moisture can not be from the crack of main push-towing rope restrictive coating, micropore or minim gap enter main push-towing rope inside, guaranteed the inner dry requirement of main push-towing rope, thereby reduced dehumidifying plenum system power consumption, also prolonged the life-span of dehumidifying plenum system.
Technique scheme also is applicable to anticorrosion with the cable of main rope of suspension bridge same structure or pipeline, the moisture protection of the large-scale enclosed busbar of using with the anticorrosion of cable with in power plant such as the building load-bearing etc.
(3) technique effect
The utility model has realized that main rope of suspension bridge is anticorrosion, and at very long main push-towing rope the later stage of drying maintenance phase, only needs the dry air of low discharge just can guarantee the inner dry requirement of main push-towing rope, has saved dehumidifying plenum system power consumption, has prolonged the life-span of dehumidifying plenum system.The utility model principle is simple, and technical scheme realizes easily.
Four, description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is an air feed part A-A cut-away view among Fig. 1.
Five, the specific embodiment
With reference to shown in Figure 1, embodiment 1 of the present utility model: a kind of anti-corrosive apparatus of main rope of suspension bridge, be included in main push-towing rope 1 outside and carry out longitudinally between appropriate gap of sealing sheath layer covering construction, be provided with the air feed part 2 and exhaust portion 3 that are used for covering inboard mediation, be provided with a stack 4 that outlet valve 5 is housed on the exhaust portion 3 at least.Dry air is delivered to the gap of steel wire 7 in the main push-towing rope by the air inlet pipe 6 on the above-mentioned air feed part 2, is discharged by the stack on the exhaust portion 34 then.
Above-mentioned dry gas is air or the nitrogen of relative humidity below 60%.The pressure limit of above-mentioned dry gas remains in the withstand voltage scope of main push-towing rope outside sealing sheath.
As dry gas, use the little air ratio of relative humidity better as far as possible.During the environment of relative humidity below 60%, corrosion of metal speed is very slow.If as dry gas, then capable of purifying air, make steel wire reach anaerobic state, the better like this anticorrosion task of having finished on every side with nitrogen.
After adopting said structure, in the 1 moist dehumidifying stage at initial stage of main push-towing rope, outlet valve 5 standard-sized sheets on exhaust portion 3 stacks 4, the dry air of big flow is delivered to the space of steel wire 7 in the main push-towing rope by air feed part 2, discharge by the stack 4 of exhaust portion 3 then, make the wet environment of main push-towing rope inside be improved into dry environment fast; At main push-towing rope 1 the later stage of drying maintenance phase, outlet valve 5 complete shut-downs on exhaust portion 3 stacks 4 or part are closed, because the exhaust local resistance of exhaust portion 3 increases, making only needs the dry air of low discharge just can make the interior dry air pressure of main push-towing rope 1 a little more than external atmosphere pressure (the extraneous blast force value that the malleation value is born greater than main push-towing rope restrictive coating appearance at least), form a kind of sealing gland effect, make main push-towing rope 1 restrictive coating have only " expiration ", there be not " air-breathing ", make the extraneous moisture can not be from the crack of main push-towing rope 1 restrictive coating, micropore or minim gap enter main push-towing rope 1 inside, guaranteed main push-towing rope 1 inner dry requirement, thereby reduced dehumidifying plenum system power consumption, prolonged the life-span of dehumidifying plenum system.
With reference to shown in Figure 2, air feed part 2 and exhaust portion 3 are respectively by cylindrical shape half tubes of material two ends be combined into.
It should be noted last that, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (2)
1, a kind of anti-corrosive apparatus of main rope of suspension bridge, be to carry out the sealing sheath layer to cover longitudinally between appropriate gap of construction in main push-towing rope (1) outside, be provided with the air feed part (2) and exhaust portion (3) that are used for covering inboard mediation, it is characterized in that: be provided with a stack (4) that outlet valve (5) are housed on the exhaust portion (3) at least.
2, the anti-corrosive apparatus of a kind of main rope of suspension bridge as claimed in claim 1 is characterized in that: air feed part (2) and exhaust portion (3) are respectively by cylindrical shape half tubes of material two ends be combined into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920036382U CN201381479Y (en) | 2009-03-06 | 2009-03-06 | Anticorrosive device for main cable of suspension bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920036382U CN201381479Y (en) | 2009-03-06 | 2009-03-06 | Anticorrosive device for main cable of suspension bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201381479Y true CN201381479Y (en) | 2010-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920036382U Expired - Lifetime CN201381479Y (en) | 2009-03-06 | 2009-03-06 | Anticorrosive device for main cable of suspension bridge |
Country Status (1)
| Country | Link |
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| CN (1) | CN201381479Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103255715A (en) * | 2013-04-24 | 2013-08-21 | 河海大学 | Stay cable dehumidification and anticorrosion system |
| CN104270920A (en) * | 2014-09-24 | 2015-01-07 | 广西华银铝业有限公司 | Anticorrosion cabinet used for isolating electronic equipment from coal gas |
| CN106439138A (en) * | 2016-10-25 | 2017-02-22 | 深圳市科兰德实业发展有限公司 | Constant-pressure valve capable of enabling partial pressure of water vapor to be constant |
| CN107366228A (en) * | 2017-07-25 | 2017-11-21 | 西南交通大学 | For the air drying methods of main rope of suspension bridge, system and air duct |
| CN111705683A (en) * | 2020-05-20 | 2020-09-25 | 中国路桥工程有限责任公司 | Dehumidification and corrosion prevention method for main cable of large suspension bridge |
| CN113774790A (en) * | 2021-07-19 | 2021-12-10 | 重庆万桥交通科技发展有限公司 | Anti-corrosion cable rope of cable-stayed bridge |
-
2009
- 2009-03-06 CN CN200920036382U patent/CN201381479Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103255715A (en) * | 2013-04-24 | 2013-08-21 | 河海大学 | Stay cable dehumidification and anticorrosion system |
| CN104270920A (en) * | 2014-09-24 | 2015-01-07 | 广西华银铝业有限公司 | Anticorrosion cabinet used for isolating electronic equipment from coal gas |
| CN106439138A (en) * | 2016-10-25 | 2017-02-22 | 深圳市科兰德实业发展有限公司 | Constant-pressure valve capable of enabling partial pressure of water vapor to be constant |
| CN106439138B (en) * | 2016-10-25 | 2019-04-09 | 深圳市科兰德实业发展有限公司 | A kind of constant pressure valve of constant steam partial pressure |
| CN107366228A (en) * | 2017-07-25 | 2017-11-21 | 西南交通大学 | For the air drying methods of main rope of suspension bridge, system and air duct |
| CN111705683A (en) * | 2020-05-20 | 2020-09-25 | 中国路桥工程有限责任公司 | Dehumidification and corrosion prevention method for main cable of large suspension bridge |
| CN111705683B (en) * | 2020-05-20 | 2021-11-23 | 中国路桥工程有限责任公司 | Dehumidification and corrosion prevention method for main cable of large suspension bridge |
| CN113774790A (en) * | 2021-07-19 | 2021-12-10 | 重庆万桥交通科技发展有限公司 | Anti-corrosion cable rope of cable-stayed bridge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU PROVINCIAL COMMUNICATION PLANNING AND DESI Free format text: FORMER NAME: JIANGSU TRAFFIC PLANNING + DESIGN INSTITUTE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 210005 Zhongshan South Road, Jiangsu, No. 342, No. Co-patentee after: Jiangsu Construction Headquarters of Changjiang Highway and Bridge Patentee after: Jiangsu Provincial Communications Planning and Design Institute Co.,Ltd. Co-patentee after: Univ. of Science and Engineering, PLA Address before: 210005 Zhongshan South Road, Jiangsu, No. 342, No. Co-patentee before: Jiangsu Construction Headquarters of Changjiang Highway and Bridge Patentee before: Jiangsu Provincial Communication Planning and Design Institute Co., Ltd. Co-patentee before: Univ. of Science and Engineering, PLA |
|
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 210014 Ziyun Road, Qinhuai District, Jiangsu, No. 9, No. Patentee after: CHINA DESIGN GROUP Co.,Ltd. Patentee after: Jiangsu Construction Headquarters of Changjiang Highway and Bridge Patentee after: Tech Univ. of P.L.A Address before: 210005 Zhongshan South Road, Jiangsu, No. 342, No. Patentee before: Jiangsu Provincial Communications Planning and Design Institute Co.,Ltd. Patentee before: Jiangsu Construction Headquarters of Changjiang Highway and Bridge Patentee before: Tech Univ. of P.L.A |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100113 |