CN214335538U

CN214335538U - Bridge main cable dehumidification protection system with double communication and lightning protection functions

Info

Publication number: CN214335538U
Application number: CN202120514544.5U
Authority: CN
Inventors: 王爱茹
Original assignee: Jiangsu Beisheng Road And Bridge Engineering Co ltd
Current assignee: Jiangsu Beisheng Road And Bridge Engineering Co ltd
Priority date: 2021-03-11
Filing date: 2021-03-11
Publication date: 2021-10-01
Anticipated expiration: 2031-03-11

Abstract

A bridge main cable dehumidification protection system with double communication and lightning protection functions relates to the technical field of main cable dehumidification. The system comprises a main control cabinet, a plurality of data acquisition boxes and an upper computer, wherein a first PLC module, a first wireless communication module and a main control cabinet power supply module for supplying power to the first PLC module are arranged in the main control cabinet; a second PLC module, a collection box power supply module, a second wireless communication module and a sensor assembly for main cable data collection are arranged in the data collection box; the first PLC module, the second PLC module and the upper computer are in communication connection through Profibus-DP cables, and the first wireless communication module, the second wireless communication module and the upper computer are in communication connection. The utility model discloses a bi-communication system with Profibus-DP communication, radio communication, one of them communication system can regard as reserve replacement system to the communication data of assurance signal acquisition box collection obtain continuous, stable transmission.

Description

Bridge main cable dehumidification protection system with double communication and lightning protection functions

Technical Field

The utility model relates to a main push-towing rope dehumidification technical field specifically is a bridge main push-towing rope dehumidification protection system who possesses bi-communication and lightning protection function.

Background

The dehumidification and corrosion prevention of the main cable of the suspension bridge are realized by a method of forcibly conveying dry air to the inner gap of the main cable through a dehumidification system, so that the data of temperature, humidity and pressure in the main cable need to be acquired in real time, the dehumidification system can conveniently realize intelligent air supply according to the data, and the stable and reliable transmission of the acquired data is particularly important.

And the communication mode of data collection among the prior art is single, after communication module breaks down, can cause data transmission to break off to data acquisition box all installs in the high position, and the maintenance time is longer, has influenced dehumidification system's reliable operation greatly.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a bridge main push-towing rope dehumidification protection system who possesses bi-communication and lightning protection function can effectively solve the problem in the background art.

The technical scheme for realizing the purpose is as follows: the utility model provides a bridge main push-towing rope dehumidification protection system who possesses bi-communication and lightning protection function, includes dehumidification unit, pressure device, air supply pipe, main push-towing rope air clamp, master control cabinet, the sealed protection system of main push-towing rope, a plurality of data acquisition case, host computer, its characterized in that: a first PLC module, a first wireless communication module and a main control cabinet power supply module for supplying power to the first PLC module are arranged in the main control cabinet;

the data acquisition box is internally provided with a second PLC module, an acquisition box power supply module, a second wireless communication module and a sensor assembly for main cable data acquisition, and the acquisition box power supply module is respectively connected with the second PLC module, the second wireless communication module and the sensor assembly;

the first PLC module, the second PLC module and the upper computer are in communication connection through Profibus-DP cables, and the first wireless communication module, the second wireless communication module and the upper computer are in communication connection.

Furthermore, still install first power lightning protection module and first signal lightning protection module in the master control cabinet, main control cabinet power module passes through first power lightning protection module and connects power supply, and Profibus-DP cable is connected with first PLC module through first signal lightning protection module.

Further, the data acquisition box comprises an outer box body and an inner box body fixedly installed in the outer box body, an exhaust window is arranged at the bottom of the outer box body, an interlayer is formed between the outer box body and the inner box body, the outer box body and the inner box body both comprise a box body with an open upper end and a box cover connected to the box body in a sealing mode, the acquisition box power module, the second PLC module and the second wireless communication module are installed in the inner box body, a connecting pipe is arranged in the outer box body below the inner box body, two ends of the connecting pipe respectively extend out of the outer box body and are connected with the outer box body in a sealing mode, and flange edges are arranged at two ends of the connecting pipe respectively.

Furthermore, the sensor assembly comprises a temperature and humidity sensor, a pressure sensor and a flow sensor which are arranged in an interlayer between the outer box body and the inner box body, the detection ends of the temperature and humidity sensor, the pressure sensor and the flow sensor are connected with a connecting pipe in the outer box body, and the signal output ends of the temperature and humidity sensor, the pressure sensor and the flow sensor are connected with a second PLC module.

Further, an electric pressure relief valve connected with the connecting pipe is further arranged in the interlayer between the outer box body and the inner box body, the electric pressure relief valve supplies power through the power module of the collection box, and the control end of the electric pressure relief valve is connected with the second PLC module.

Furthermore, still be provided with second power lightning protection module and second signal lightning protection module in the inner box, collection box power module passes through second power lightning protection module and connects power supply, and temperature and humidity sensor, pressure sensor, flow sensor's signal output part, the control end of electronic pressure release valve all are connected with the signal input part of second PLC module through second signal lightning protection module, and Profibus-DP cable passes through second signal lightning protection module and second PLC module communication connection.

Further, the dehumidification protection system further comprises a mobile phone terminal, the mobile phone terminal is in communication connection with the upper computer, and app used for monitoring the signal data collected by the sensor assembly and the running state of the dehumidification system is installed in the mobile phone terminal.

The utility model has the advantages that:

1) the utility model discloses a bi-communication system with Profibus-DP communication, radio communication, one of them communication system can regard as reserve replacement system to the communication data of assurance signal acquisition box collection obtain continuous, stable transmission.

2) The utility model discloses a communication box adopts bilayer structure, double-layer door design, forms the intermediate layer between box and the outer box in making, can play good thermal-insulated wet effect that separates, and electric elements in the internal box can play fine guard action.

3) The Profibus-DP communication is high-speed and low-cost communication, can replace 24VDC or 4-20 mA signal transmission, and avoids fluctuation of 24VDC or 4-20 mA signals in the transmission process, so that the accuracy of data transmission is influenced, and the advantages of reliability and accuracy of data transmission are improved.

4) Temperature and humidity sensor, pressure sensor, flow sensor install in data acquisition box, simple to operate, and the wiring is succinct reliable, avoids the wind to blow the sun, has prolonged life.

5) The utility model discloses a main control cabinet, signal acquisition box all dispose power lightning protection module and signal lightning protection module, and the assurance system is used in outdoor installation.

Drawings

FIG. 1 is a schematic view of a connection structure of a data collection box and a cable;

FIG. 2 is a schematic view of a data collection box;

fig. 3 is a schematic diagram of the system of the present invention.

Detailed Description

As shown in fig. 1, 2, 3, the utility model discloses a bridge main push-towing rope dehumidification protection system who possesses bi-communication and lightning protection function carries dry air in order to prevent the inside strand steel wire of main push-towing rope to corrode the main push-towing rope, including dehumidification unit, pressure device, air supply pipe way, main push-towing rope air clamp, the sealed protection system of main push-towing rope, wherein the sealed protection system of main push-towing rope can adopt one of following five seal structure: 1) firstly winding an s-shaped steel wire winding layer on a main cable, arranging a vulcanized rubber sealing layer on the s-shaped steel wire winding layer, and finally arranging a protective coating; 2) firstly, winding an s-shaped steel wire winding layer on a main cable, and then arranging a hot-melt winding belt on the s-shaped steel wire winding layer; 3) firstly, winding an s-shaped steel wire winding layer on a main cable, arranging a vulcanized rubber sealing layer on the s-shaped steel wire winding layer, and finally arranging a hot-melt winding belt; 4) Arranging a non-vulcanized sealing layer on a main cable, winding a round steel wire winding layer, coating a vulcanized rubber sealing layer, and finally arranging a protective coating; 5) firstly arranging a non-vulcanized sealing layer on a main cable, then winding a round steel wire winding layer, then coating a vulcanized rubber sealing layer, and finally arranging a hot-melting winding belt.

Main push-towing rope dehumidification protection system still includes main control cabinet 1, host computer 2, a plurality of data acquisition case 3, and data acquisition case 3 is connected with main push-towing rope 5 of 4 both sides of main tower of suspension bridge respectively, and concrete mounted position, connection structure all belong to prior art, no longer give unnecessary details here.

Install first PLC module 6, first power lightning protection module 7, first signal lightning protection module 8, main control cabinet power module 9, first wireless communication module 10 in the main control cabinet 1, main control cabinet power module 9 connects power supply through first power lightning protection module 7, and main control cabinet power module 9 is connected with first wireless communication module 10, first PLC module 6.

Data acquisition box 2 includes outer box 11 and the interior box 12 of fixed mounting in outer box 11, the bottom of outer box is provided with exhaust window, be formed with the intermediate layer between outer box 11 and the interior box 12, outer box 11 and interior box 12 all include upper end open-ended box 13 and the case lid 14 of sealing connection on box 13, be provided with connecting pipe 15 in the outer box 11 of inner box 12 below, the both ends of connecting pipe 13 outwards stretch out outer box 11 respectively, and with sealing connection between the outer box 11, the both ends of connecting pipe 15 are connected with flange 16 respectively.

A second PLC module 17, a second power supply lightning protection module 18, a second signal lightning protection module 19, a collection box power module 20 and a second wireless communication module 24 are installed in the inner box body 13, a temperature and humidity sensor 21, a pressure sensor 22, a flow sensor 23 and an electric pressure release valve 25 are installed in an interlayer between the outer box body 11 and the inner box body 12, the collection box power module 20 is connected with a power supply through the second power supply lightning protection module 18, the collection box power module 20 is respectively connected with the second PLC module 17, the second wireless communication module 24, the temperature and humidity sensor 21, the pressure sensor 22, the flow sensor 23 and the electric pressure release valve 25, the detection ends of the temperature and humidity sensor 21, the pressure sensor 22 and the flow sensor 23 are connected with the connecting pipe 13 in the outer box body 11, the temperature and humidity sensor 21, the pressure sensor 22, the signal output end of the flow sensor 23 and the control end of the electric pressure release valve 25 are connected with the second PLC module 17 through the second signal lightning protection module 18, when the pressure sensor 22 detects that the pressure value in the connecting pipe 15 is greater than the set value, the second PLC module 17 controls the electric pressure relief valve 25 to open for pressure relief.

The first wireless communication module 10, the second wireless communication module 24 and the upper computer 2 are in communication connection.

Still through Profibus-DP cable communication connection simultaneously between first PLC module 6, second PLC module 17, the host computer 2, be connected through first signal lightning protection module 7 between Profibus-DP cable and the first PLC module 17, be connected through second power lightning protection module 18 between Profibus-DP cable and the first PLC module 6.

The mobile phone terminal 26 is in communication connection with the upper computer 2, and an app for monitoring the signal data collected by the temperature and humidity sensor 21, the pressure sensor 22 and the flow sensor 23 and the operation state of the dehumidification system is installed in the mobile phone terminal 26.

The utility model discloses a 15 both ends of connecting pipe are connected with the main push-towing rope intercommunication in the data acquisition case 2.

The utility model discloses a bi-communication system with Profibus-DP communication, radio communication, one of them communication system can regard as reserve replacement system to the communication data of assurance signal acquisition box collection obtain continuous, stable transmission, can switch through host computer 1 between two kinds of communication systems.

Claims

1. The utility model provides a bridge main push-towing rope dehumidification protection system who possesses bi-communication and lightning protection function, includes dehumidification unit, pressure device, air supply pipe, main push-towing rope air clamp, master control cabinet, the sealed protection system of main push-towing rope, host computer, a plurality of data acquisition case, its characterized in that: a first PLC module, a first wireless communication module and a main control cabinet power supply module for supplying power to the first PLC module are arranged in the main control cabinet;

2. The bridge main cable dehumidification and protection system with double communication and lightning protection functions as claimed in claim 1, wherein: still install first power lightning protection module and first signal lightning protection module in the master control cabinet, the power module of master control cabinet is connected power supply through first power lightning protection module, and Profibus-DP cable is connected with first PLC module through first signal lightning protection module.

3. The bridge main cable dehumidification and protection system with double communication and lightning protection functions as claimed in claim 1, wherein: the data acquisition box comprises an outer box body and an inner box body fixedly installed in the outer box body, an exhaust window is arranged at the bottom of the outer box body, an interlayer is formed between the outer box body and the inner box body, the outer box body and the inner box body respectively comprise a box body with an upper end opening and a box cover connected to the box body in a sealing mode, the acquisition box power module, the second PLC module and the second wireless communication module are installed in the inner box body, a connecting pipe is arranged in the outer box body below the inner box body, two ends of the connecting pipe respectively extend out of the outer box body and are connected with the outer box body in a sealing mode, and flange edges are arranged at two ends of the connecting pipe respectively.

4. The bridge main cable dehumidification and protection system with double communication and lightning protection functions as claimed in claim 2, wherein: the sensor assembly comprises a temperature and humidity sensor, a pressure sensor and a flow sensor which are arranged in an interlayer between the outer box body and the inner box body, the detection ends of the temperature and humidity sensor, the pressure sensor and the flow sensor are connected with a connecting pipe in the outer box body, and the signal output ends of the temperature and humidity sensor, the pressure sensor and the flow sensor are connected with a second PLC module.

5. The bridge main cable dehumidification and protection system with double communication and lightning protection functions as claimed in claim 4, wherein: an electric pressure relief valve connected with the connecting pipe is further arranged in the interlayer between the outer box body and the inner box body, the electric pressure relief valve supplies power through the power module of the collection box, and the control end of the electric pressure relief valve is connected with the second PLC module.

6. The bridge main cable dehumidification and protection system with double communication and lightning protection functions as claimed in claim 4, wherein: still be provided with second power lightning protection module and second signal lightning protection module in the inner box, collection box power module passes through second power lightning protection module and connects power supply, and temperature and humidity sensor, pressure sensor, flow sensor's signal output part, the control end of electronic pressure release valve all are connected with the signal input part of second PLC module through second signal lightning protection module, and Profibus-DP cable passes through second signal lightning protection module and second PLC module communication connection.

7. The bridge main cable dehumidification and protection system with double communication and lightning protection functions as claimed in claim 1, wherein: the dehumidification protection system further comprises a mobile phone terminal, the mobile phone terminal is in communication connection with the upper computer, and app used for monitoring the signal data collected by the sensor assembly and the running state of the dehumidification system is installed in the mobile phone terminal.