CN212561186U - A dehumidification system that is used for cable protection to go up anchor and admits air - Google Patents
A dehumidification system that is used for cable protection to go up anchor and admits air Download PDFInfo
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- CN212561186U CN212561186U CN202020685901.XU CN202020685901U CN212561186U CN 212561186 U CN212561186 U CN 212561186U CN 202020685901 U CN202020685901 U CN 202020685901U CN 212561186 U CN212561186 U CN 212561186U
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- lower anchor
- protection
- anchor
- air inlet
- air
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- 238000007791 dehumidification Methods 0.000 title claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 230000001681 protective effect Effects 0.000 claims abstract description 15
- 238000012544 monitoring process Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 42
- 238000004873 anchoring Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 8
- 239000010959 steel Substances 0.000 abstract description 8
- 238000005260 corrosion Methods 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000003647 oxidation Effects 0.000 abstract description 3
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- 239000000725 suspension Substances 0.000 abstract description 3
- 238000000429 assembly Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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Abstract
A dehumidification system for stay cable protection anchor-up air intake comprises a stay cable body, an upper anchor protection mechanism and a lower anchor protection mechanism. The upper anchorage device protection mechanism comprises an upper cable guide pipe, an upper anchorage device protection cover, an air inlet seat, an air inlet pipe and a pressure sensor. The air inlet pipe is communicated with the inhaul cable body so as to press protective gas into the inhaul cable body. The lower anchor protection mechanism comprises a rain cover, a lower anchor protection cover, an air release seat and a lower anchor temperature and humidity sensor. The lower anchor temperature and humidity sensor is used for detecting the temperature and humidity in the lower anchor protection cover, protective gas is introduced from the gas inlet pipe according to the temperature value and the humidity value, and then the pressure in the inhaul cable body reaches a preset value under the monitoring of the pressure sensor. This a dehumidification system that anchor was admitted air on is used for the cable protection can prevent that the steel wire in the strand of cable from causing the oxidation corrosion because of relative humidity is too high to can improve the life of suspension cable by a wide margin, save the maintenance and the operation cost of bridge.
Description
Technical Field
The utility model relates to a technical field is made to cable for the bridge, especially a dehumidification system that anchor was admitted air on is used for the cable protection.
Background
The cable is the main bearing component of a part of bridge or other buildings, and the service life of the cable also determines the service life of the whole bridge. At present, the design life of a cable-stayed bridge is more than 100 years, and the working environment of the cable-stayed bridge is river-crossing and sea-crossing, so the temperature and humidity change of the cable-stayed bridge is large, and the corrosion to a steel wire of a stay cable is also severe. At present, the actual service life of the stay cable for the cable-stayed bridge is only about 20 years, because the main protection is realized by steel wire galvanization protection, outer layer extrusion molding double-layer high-density polyethylene and grease filled in a cable body. However, in the actual use process, along with the use of the cable, the corrosion-resistant grease and the zinc coating in the cable body gradually lose to lose the protection of the steel wire, and the service life of the cable is difficult to be really realized for more than 50 years. That is, cable replacement is performed at least once for a cable-stayed bridge with a design life of more than 100 years. The cable replacement cost is several times higher than the manufacturing cost of the stay cable itself. In addition, the construction of cable replacement also seriously hinders traffic operation and causes potential safety hazard.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a can prevent that steel wire corrosion is used for the cable protection to go up dehumidification system that anchor was admitted air to solve above-mentioned problem.
A dehumidification system for stay cable protection anchor-up air intake comprises a stay cable body, an upper anchor protection mechanism arranged on the stay cable body, and a lower anchor protection mechanism arranged on the stay cable body. The upper anchorage device protection mechanism comprises an upper anchorage device guide pipe sleeved on the inhaul cable body, an upper anchorage device protection cover arranged on the upper anchorage device guide pipe in a sealing mode, an air inlet seat arranged on the upper anchorage device protection cover, an air inlet pipe arranged on the air inlet seat, and a pressure sensor arranged on the air inlet seat. The air inlet pipe is communicated with the inhaul cable body so as to press protective gas into the inhaul cable body. Lower anchor protection machanism includes that a cover establishes rain-proof cover on the cable body, a sealed setting is in lower anchor protection casing on the rain-proof cover, a setting is in let out gas seat on the anchor protection casing down, and a setting is in let out the wet sensor of anchor temperature down on the gas seat. The lower anchor temperature and humidity sensor is used for detecting the temperature and humidity in the lower anchor protection cover, protective gas is introduced from the gas inlet pipe according to the temperature value and the humidity value, and then the pressure in the inhaul cable body reaches a preset value under the monitoring of the pressure sensor.
Furthermore, the inhaul cable body comprises an upper anchor wire sealing structure arranged at one end and a lower anchor wire sealing structure arranged at the other end.
Furthermore, the upper anchorage device protection mechanism also comprises an upper anchorage air duct which is arranged in the upper anchorage device sealing structure, communicated with the upper anchorage device protection cover and penetrates through the upper anchorage device sealing structure.
Furthermore, the lower anchor protection mechanism further comprises at least one lower anchor air duct which is arranged in the lower anchor wire sealing structure, communicated with the lower anchor protection cover and penetrates through the lower anchor wire sealing structure.
Further, the lower anchor protection mechanism comprises two lower anchor air guide pipes which are arranged at intervals.
Further, in use, the upper anchor wire sealing structure is located above the lower anchor wire sealing structure in a vertical direction.
Furthermore, the upper anchor protection mechanism further comprises an air inlet quick connecting and inserting assembly arranged between the upper anchor protection cover and the air inlet seat, and the air inlet quick connecting and inserting assembly is used for enabling the upper anchor protection cover to be quickly connected with and detached from the air inlet seat.
Further, the air release seat is fixedly connected with the lower anchor protection cover.
Further, the air relief seat is connected with the lower anchor protection cover through a pipeline.
Furthermore, the dehumidification system for stay cable protection anchor-up air intake further comprises a control device, wherein the control device opens the air inlet pipe according to the numerical value output by the lower anchor temperature and humidity sensor to inflate the stay cable body, and closes the air inlet pipe to stop inflating the stay cable body when the numerical value output by the pressure sensor.
Compared with the prior art, the utility model provides a dehumidification system that is used for anchor air inlet on the cable protection owing to have last ground tackle protection machanism and anchor protection machanism down, just anchor protection machanism has down anchor temperature and humidity sensor. This anchor temperature humidity transducer detects the humidity in this cable down, when humidity reaches the threshold value that reaches, then control with intake-tube connection's air pump fills protective gas to it, and this protective gas can order about the moisture from disappointing the seat and release type to can prevent that the steel wire in the strand of cable from causing the oxidation corrosion because of relative humidity is too high, thereby can improve the life of suspension cable by a wide margin, saved the maintenance and the operation cost of bridge.
Drawings
Fig. 1 is the utility model provides a section structure schematic diagram that is used for the cable protection to go up the dehumidification system that the anchor was admitted air.
Fig. 2 is a partially enlarged structural view at a of the dehumidifying system for guy cable protection anchored intake air of fig. 1.
Fig. 3 is a partially enlarged structural view at B of the dehumidifying system for guy cable protection anchored intake air of fig. 1.
Detailed Description
Specific examples of the present invention will be described in further detail below. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.
As shown in fig. 1 to fig. 3, it is a schematic structural diagram of a dehumidification system for air inlet of anchor on cable protection provided by the present invention. The dehumidification system for the stay cable protection anchoring air inlet comprises a stay cable body 10, an upper anchor device protection mechanism 20 arranged on the stay cable body 10, a lower anchor device protection mechanism 30 arranged on the stay cable body 10, and a control device 40 electrically connected with the upper anchor device protection mechanism 20 and the lower anchor device protection mechanism 30. It is contemplated that the dehumidification system for guy cable protection anchored air intake may further include other functional modules, such as assembly modules, installation assemblies, sealing assemblies, etc., which are well known to those skilled in the art and will not be described herein.
The cable body 10 itself should be of the prior art, consisting of a plurality of steel wires and formed by extruding a double layer of high density polyethylene outside and then winding a tape outside the polyethylene layer. The cable body 10 comprises a strand 11, an upper anchor wire sealing structure 12 arranged at one end of the strand 11, and a lower anchor wire sealing structure 13 arranged at the other end of the strand 11. The strand 11, and the upper and lower anchor wire sealing structures 12 and 13 are also the prior art, such as the technical solution disclosed in patent No. CN201620782756.0, and are not described herein again. It will be appreciated that in use, the upper anchor wire sealing structure 12 is vertically above the lower anchor wire sealing structure 13.
The upper anchorage device protection mechanism 20 comprises an upper anchorage device guide pipe 21 sleeved on the inhaul cable body 10, an upper anchorage device protection cover 22 arranged on the upper anchorage device guide pipe 21 in a sealing mode, an air inlet seat 23 arranged on the upper anchorage device protection cover 22, an air inlet pipe 24 arranged on the air inlet seat 23, a pressure sensor 25 arranged on the air inlet seat, an upper anchorage air guide pipe 26 arranged in the inhaul cable body 10, and an air inlet quick connection assembly 27 arranged between the upper anchorage device protection cover 22 and the air inlet seat 23. The upper cable guide tube 21 is a tubular structure, which is sleeved outside the upper anchor wire sealing structure 12 and fixed with the upper anchor wire sealing structure 12. The upper anchor protecting cover 22 may be a cylindrical structure with one end closed, and is fastened to the upper anchor wire sealing structure 12, and the end of the upper anchor protecting cover is fixed to the upper cable guide 21. It is contemplated that a sealing ring may be disposed between the upper anchor guard 22 and the upper cable guide 21 for sealing purposes. The air inlet seat 23 may be a square frame that is connected to the upper anchor guard 22 by an air inlet quick connector assembly 27. The air inlet quick connector assembly 27 is communicated with the upper anchor wire sealing structure 12, and the air inlet quick connector assembly 27 itself should be a prior art, and will not be described herein again. The air inlet quick connector assembly 27 is used for quickly connecting and disconnecting the upper anchor protection cover 22 and the air inlet seat 23. The air inlet pipe 24 is disposed on the air inlet seat 23, and can be connected to an air pump (not shown), so that when the air pump is turned on, air such as shielding gas can be pumped into the cable body 10. One end of the inlet pipe 24 may be provided with a valve to control its opening. The pressure sensor 25 is provided on the intake seat 23, and detects the gas pressure in the intake seat 23. The upper anchor air duct 26 is disposed in the upper anchor wire sealing structure 12, communicates with the upper anchor protection cover 22, and passes through the upper anchor wire sealing structure 12. The upper anchor air duct 26 is arranged through the upper anchor wire sealing structure 12 to pump the pumped air into the strand 11 of the inhaul cable body 10 and into the lower anchor wire sealing structure 13. Due to the existence of the upper anchor air duct 26, the air inlet pipe 24 is communicated with the cable body 10 so as to press protective gas into the cable body 10.
The lower anchor protection mechanism 30 comprises a rain cover 31 sleeved on the inhaul cable body 10, a lower anchor protection cover 32 arranged on the rain cover 31 in a sealing mode, an air release seat 33 arranged on the lower anchor protection cover 32, a lower anchor temperature and humidity sensor 34 arranged on the air release seat 33, and at least one lower anchor air guide pipe 35 arranged in the lower anchor wire sealing structure 13. For the cable body 10, the rain cover 31 is a prior art, and covers the outer side of the lower anchor wire sealing structure 13 to shield rain, and may be a tapered cylinder. The lower anchor protection cover 32 may also be a cylindrical structure, which is fastened to the lower anchor wire sealing structure 13, and the lower anchor protection cover 32 is fastened to the rain cover 31. Meanwhile, a sealing ring is arranged between the lower anchor protection cover 32 and the rain cover 31 to prevent the leakage of the protection gas. The air release seat 33 is connected to the protection cover 32, and may be connected to the lower anchor protection cover 32 through a pipe. The air release seat 33 is further provided with an air release pipe for releasing water vapor existing in the lower anchor wire sealing structure 13. The lower anchor temperature and humidity sensor 34 is disposed on the air release seat 33 to detect the humidity and temperature of the lower end of the cable body 10. The lower anchor air duct 35 is communicated with the lower anchor protection cover 32 and penetrates through the lower anchor wire sealing structure 13, and is used for introducing protective gas in the strand 11 into the air release seat 33. It is of course conceivable that the venting duct should be closed when the protective gas is filled. In this embodiment, the lower anchor air duct 35 has two air ducts, so as to facilitate the introduction of the protective gas into the lower anchor wire sealing structure 13 as soon as possible.
The control device 40 may include a PLC or a microprocessor, which is electrically connected to the lower anchor humidity sensor 34 and the pressure sensor 25, and turns on or off the air pump according to the values output by the lower anchor humidity sensor 34 and the pressure sensor 25 to pump the shielding gas. Specifically, the lower anchor temperature and humidity sensor 34 is used for detecting the temperature and humidity in the lower anchor protection cover 32, the control device 40 introduces protective gas from the gas inlet pipe 24 according to the temperature value and the humidity value, and then the pressure in the cable body 10 reaches a preset value under the monitoring of the pressure sensor 25. The control device 40 starts the air inlet pipe 23 to inflate the cable body 11 according to the value output by the lower anchor temperature and humidity sensor 34, and closes the air inlet pipe 23 to stop inflating the cable body 11 when the value output by the pressure sensor 25.
Compared with the prior art, the utility model provides a dehumidification system that is used for anchor air inlet on cable protection is owing to have last ground tackle protection machanism 20 and lower anchor utensil protection machanism 30, just lower anchor utensil protection machanism 30 has anchor temperature and humidity sensor 34 down. This lower anchor temperature humidity transducer 34 detects the humidity in this cable always, when humidity reaches the threshold value that reaches, then control with the air pump that intake pipe 23 is connected fills protective gas to it, and this protective gas can order about the moisture and leave from disappointing the seat to can prevent that the steel wire in the strand of cable from causing the oxidation corrosion because of relative humidity is too high, thereby can improve the life of suspension cable by a wide margin, saved the maintenance and the operation cost of bridge.
The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention, and any modification, equivalent replacement or improvement within the spirit of the present invention is encompassed by the claims of the present invention.
Claims (10)
1. The utility model provides a dehumidification system that is used for cable protection to go up anchor and admits air which characterized in that: the dehumidification system for the stay cable protection anchoring air inlet comprises a stay cable body, an upper anchor device protection mechanism arranged on the stay cable body, and a lower anchor device protection mechanism arranged on the stay cable body, wherein the upper anchor device protection mechanism comprises an upper cable guide pipe sleeved on the stay cable body, an upper anchor device protection cover hermetically arranged on the upper cable guide pipe, an air inlet seat arranged on the upper anchor device protection cover, an air inlet pipe arranged on the air inlet seat, and a pressure sensor arranged on the air inlet seat, the air inlet pipe is communicated with the stay cable body to press protective gas into the stay cable body, the lower anchor device protection mechanism comprises a rain cover sleeved on the stay cable body, a lower anchor device protection cover hermetically arranged on the rain cover, and an air outlet seat arranged on the lower anchor device protection cover, and the lower anchor temperature and humidity sensor is arranged on the air release seat, is used for detecting the temperature and the humidity in the lower anchor protection cover, is filled with protective gas through the air inlet pipe according to the temperature value and the humidity value, and then enables the pressure in the inhaul cable body to reach a preset value under the monitoring of the pressure sensor.
2. The dehumidification system for guy cable protection anchored air intake as recited in claim 1, wherein: the cable body comprises an upper anchor wire sealing structure arranged at one end and a lower anchor wire sealing structure arranged at the other end.
3. The dehumidification system for guy cable protection anchored air intake as recited in claim 2, wherein: the upper anchorage device protection mechanism also comprises an upper anchorage air duct which is arranged in the upper anchorage device sealing structure, communicated with the upper anchorage device protection cover and penetrates through the upper anchorage device sealing structure.
4. The dehumidification system for guy cable protection anchored air intake as recited in claim 2, wherein: the lower anchor protection mechanism further comprises at least one lower anchor air duct which is arranged in the lower anchor wire sealing structure, communicated with the lower anchor protection cover and penetrates through the lower anchor wire sealing structure.
5. The dehumidification system for guy cable protection anchored air intake as recited in claim 4, wherein: the lower anchor protection mechanism comprises two lower anchor air guide tubes arranged at intervals.
6. The dehumidification system for guy cable protection anchored air intake as recited in claim 2, wherein: when in use, the upper anchor wire sealing structure is positioned above the lower anchor wire sealing structure in the vertical direction.
7. The dehumidification system for guy cable protection anchored air intake as recited in claim 1, wherein: the upper anchorage device protection mechanism further comprises an air inlet quick connecting and inserting assembly arranged between the upper anchorage device protection cover and the air inlet seat, and the air inlet quick connecting and inserting assembly is used for enabling the upper anchorage device protection cover to be quickly connected with and detached from the air inlet seat.
8. The dehumidification system for guy cable protection anchored air intake as recited in claim 1, wherein: the air release seat is fixedly connected with the lower anchor protection cover.
9. The dehumidification system for guy cable protection anchored air intake as recited in claim 8, wherein: the air release seat is connected with the lower anchor protection cover through a pipeline.
10. The dehumidification system for guy cable protection anchored air intake as recited in claim 1, wherein: the dehumidification system for the stay cable protection anchoring air inlet further comprises a control device, the control device opens the air inlet pipe according to the numerical value output by the lower anchor temperature and humidity sensor to inflate the stay cable body, and closes the air inlet pipe to stop inflating the stay cable body when the numerical value output by the pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020685901.XU CN212561186U (en) | 2020-04-29 | 2020-04-29 | A dehumidification system that is used for cable protection to go up anchor and admits air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020685901.XU CN212561186U (en) | 2020-04-29 | 2020-04-29 | A dehumidification system that is used for cable protection to go up anchor and admits air |
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| Publication Number | Publication Date |
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| CN212561186U true CN212561186U (en) | 2021-02-19 |
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| CN202020685901.XU Active CN212561186U (en) | 2020-04-29 | 2020-04-29 | A dehumidification system that is used for cable protection to go up anchor and admits air |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113818346A (en) * | 2021-09-13 | 2021-12-21 | 上海浦江缆索股份有限公司 | Stay cable auxiliary mechanism based on dehumidification system and dehumidification method |
-
2020
- 2020-04-29 CN CN202020685901.XU patent/CN212561186U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113818346A (en) * | 2021-09-13 | 2021-12-21 | 上海浦江缆索股份有限公司 | Stay cable auxiliary mechanism based on dehumidification system and dehumidification method |
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