CN217710328U - Inhaul cable and inhaul cable temperature testing system - Google Patents
Inhaul cable and inhaul cable temperature testing system Download PDFInfo
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- CN217710328U CN217710328U CN202221102221.6U CN202221102221U CN217710328U CN 217710328 U CN217710328 U CN 217710328U CN 202221102221 U CN202221102221 U CN 202221102221U CN 217710328 U CN217710328 U CN 217710328U
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- 238000012544 monitoring process Methods 0.000 description 4
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- 238000010276 construction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 1
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- 238000011160 research Methods 0.000 description 1
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Abstract
The utility model discloses a cable and cable temperature test system is through at the inside temperature sensor that sets up of cable to through signal transmission line with the inside temperature data output of built-in temperature sensor measuring cable for external terminal, so that supply external terminal to monitor the real-time temperature of cable, the utility model discloses can accurate measurement to the inside temperature of cable, thereby help improving the accuracy of the cable power change prediction of cable.
Description
Technical Field
The utility model relates to a manufacturing and control field of cable-stay bridge's cable especially relates to cable and cable temperature test system.
Background
The cable-stayed bridge is a combined system consisting of a main tower, a main beam, a stay cable and a bridge deck system. In the system, the stay cable provides middle elastic support for the main beam, so that the main beam has great spanning capacity, and the cable-stayed bridge can be regarded as a stay cable multi-span elastic support continuous beam. Therefore, the stress state of the stay cable is the key of the design of the whole cable-stayed bridge structural system. The cable force of the stay cable of the cable-stayed bridge is influenced by the temperature action besides the loads such as dead load, temporary load, traffic and the like. Under the action of temperature, the cable force of the cable changes due to different deformations generated by different linear expansion coefficients of the cable and the concrete.
In order to ensure the safety of the cable-stayed bridge, the temperature of a cable of the cable-stayed bridge generally needs to be monitored, the cable of the cable-stayed bridge is processed by a special process in a factory, a real bridge test cannot be realized, and most of the temperature of the cable is researched by predicting the cable force change of the cable by monitoring the external temperature data of the cable, so that the external temperature data is equivalent to the internal temperature data of the cable, and the cable force change of the cable cannot be accurately reflected.
Therefore, how to accurately measure the internal temperature data of the cable to improve the cable force variation prediction accuracy of the cable becomes a technical problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model provides a cable and cable temperature test system for solve the unable accurate inside temperature data of measuring the cable of current technique, lead to the lower technical problem of cable force variation accuracy of the cable of prediction.
In order to solve the technical problem, the utility model provides a technical scheme does:
the utility model provides a cable, includes the cable body, sets up the temperature sensor inside the cable body, and with temperature sensor connects, from the inside signal transmission line that outwards extends of cable body, temperature sensor passes through signal transmission line and establishes communication with the outside terminal of body, is used for measuring the inside temperature data of cable body, and will temperature data passes through signal transmission line and transmits for external terminal.
Preferably, temperature sensor includes a plurality ofly, and a plurality of temperature sensor distribute in the different regions of cable body inside are used for measuring the temperature data of the different regions of cable body inside to transmit the temperature data of the different regions of cable body inside with the measurement to external terminal through signal transmission line.
Preferably, the plurality of temperature sensors are distributed in different areas of the same axial cross section of the cable body.
Preferably, the plurality of temperature sensors includes: the temperature sensor comprises a first temperature sensor arranged at the axial center position of the axial section, and a plurality of second temperature sensors uniformly distributed around the first temperature sensor.
Preferably, the inhaul cable is further provided with a plurality of steel wire cable clamps for fixing the inhaul cable.
Preferably, still include with the power transmission line that temperature sensor is connected, outwards extend from the cable body inside, temperature sensor passes through power transmission line is connected with external power source to supply external power source to the temperature sensor supplies power.
A cable temperature testing system comprising:
the inhaul cable, the data acquisition instrument and the power supply are arranged;
the power supply is connected with the temperature sensor in the inhaul cable through a power transmission line so as to supply power to the temperature sensor; the data acquisition instrument is communicated with the temperature sensor through a signal transmission line so as to acquire the temperature data in the inhaul cable through the temperature sensor.
Preferably, the power supply comprises a solar panel and a storage battery, the solar panel is connected with a power input end of the storage battery, a power output end of the storage battery is connected with the temperature sensor in the inhaul cable through a power transmission line, the solar panel is used for collecting light energy and converting the light energy into electric energy, then the electric energy is stored in the storage battery, and the storage battery is used for supplying power to the temperature sensor in the inhaul cable.
Preferably, the data acquisition instrument comprises a wireless communication module, and the data acquisition instrument is connected with a remote server through the wireless communication module and is used for sending acquired temperature data to the remote server for storage.
The utility model discloses following beneficial effect has:
1. the utility model provides a cable and cable temperature test system is through at the inside temperature sensor that sets up of cable to through signal transmission line with the inside temperature data output of built-in temperature sensor measuring cable for external terminal, with supply external terminal to monitor the real-time temperature of cable, compare prior art, the utility model discloses can the accurate inside temperature of measuring the cable, thereby help improving the accuracy of the cable force change prediction of cable.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
fig. 1 is a layout diagram of a temperature sensor built in a guy cable in a preferred embodiment of the present invention;
FIG. 2 is a side view of a cable temperature testing system in a preferred embodiment of the present invention;
fig. 3 is a front elevation view of a cable temperature testing system in a preferred embodiment of the present invention.
The drawing is marked with 1, a stay cable; 2. a temperature sensor; 3. a signal transmission line; 4. a solar panel.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
The first embodiment is as follows:
the utility model discloses a cable 1 in this implementation, including the cable body, set up at the inside temperature sensor 2 of cable body, and with the signal transmission line 3 that connects, extends outside from the cable body is connected to temperature sensor 2, communication is established with the outside terminal of body through signal transmission line 3 to temperature sensor 2, is used for measuring the inside temperature data of cable body, and will temperature data passes through signal transmission line 3 and transmits for external terminal.
In addition, in this embodiment, still disclose a cable temperature test system, include:
the inhaul cable 1, the data acquisition instrument and the power supply are arranged;
the power supply is connected with the temperature sensor 2 in the inhaul cable 1 through a power transmission line so as to supply power to the temperature sensor 2; the data acquisition instrument passes through signal transmission line 3 with temperature sensor 2 establishes communication, with through temperature sensor 2 gathers the inside temperature data of cable 1.
The utility model provides a cable 1 and cable temperature test system is through at 1 inside temperature sensor 2 that sets up of cable to export the inside temperature data of 1 of cable of built-in temperature sensor 2 measuring for external terminal through signal transmission line 3, compare prior art with the real-time temperature of cable 1 is monitored to the confession external terminal, the utility model discloses can accurate measurement to cable 1's inside temperature, thereby help improving the accuracy of cable force change prediction of cable 1.
Example two:
the second embodiment is a preferred embodiment of the first embodiment, and a difference from the first embodiment is that a specific structure and a workflow of the guy cable temperature testing system are introduced, and the specific structure and the workflow specifically include the following contents:
the utility model aims at gathering the inside temperature variation of cable 1 to according to the condition of cable 1 temperature variation, set for the temperature acquisition frequency, the temperature variation of every measurement station of record draws the temperature variation curve, and carry out the function fitting to actual measurement temperature data, so that carry out comparative analysis with actual measurement temperature data and calculation data, the parameter value of adjusting in time guarantees to be used for relying on accuracy and the reliability of engineering at cable 1 temperature field that sets up control. The safe, smooth and effective construction of the structure is ensured, the bridge reaches the design target after the construction is finished, and the bridge forming state is ensured to be close to the design target.
In order to achieve the above objective, as shown in fig. 2-3, the embodiment discloses a temperature testing system for a cable, which includes a cable 1 with a built-in temperature sensor 2, a data acquisition instrument, and a power supply system;
the structure of the inhaul cable 1 with the built-in temperature sensor 2 is designed as follows:
the length of 1 festival section of experimental cable is about 3m, selects 1 intermediate position of cable to test the cross-section, and the temperature sensor 2 of cross-section arranges. And 2 cable clamps are respectively arranged at positions close to the two end faces by 70cm, and the steel wires of the inhaul cable 1 are fixed. The middle of the inhaul cable 1 is a test section, the section of the inhaul cable 1 is divided into sectors, and the specific sensor arrangement which needs 5 temperature sensors 2,1-1 in total is shown in figure 1: 1 cable is installed according to 1 warm center of cable, respectively arranges 1 in left lower, upper left, upper right, lower right. Each temperature sensor 2 is connected with an external power supply system through a power transmission line extending outwards from the interior of the inhaul cable body; each temperature sensor 2 is connected with the data acquisition instrument of outside through the signal transmission line 3 that outwards extends from the cable body inside.
In the embodiment, the temperature sensor 2 used for collecting the temperature data of the inhaul cable 1 is PT-100, the sensor is a platinum wire thermal resistance sensor with good stability and linearity by performing the shape prefabrication processing, the measuring range is-200 to 650 ℃, the measuring precision is 0.01 ℃, and the error is 0.5 ℃.
The arrangement method of the temperature sensor 2 is as follows:
prefabricating sections of a stay rope 1 of parallel steel wires in a factory, numbering the steel wires, and drawing the numbered steel wires by adopting hydraulic equipment; firstly, extracting a middle steel wire, inserting a stainless steel conduit with a proper diameter into the reserved hole, and pushing to a position 5cm away from the center; then the special temperature sensor 2 is sent into the steel pipe, the transmission line in the guide pipe is slowly straightened, and the outer guide pipe is sealed by the sealant; and repeating the operation until all the sensors are sent to the specified section positions of the steel pipe. And a protective layer is coated on the surface and the beam end of the inhaul cable 1, so that the inhaul cable plays a role in fixing and protecting.
In the embodiment, the special temperature sensor 2 is cylindrical, so that the sensor can conveniently penetrate into a stainless steel conduit; BGK-16 acquisition instruments are selected as the data acquisition instruments, a power supply system adopts a solar power supply system, and a solar panel 4 can be fixed on the support of the inhaul cable 1 and faces the sun as shown in figure 3.
In this embodiment, the operation flow of the cable temperature testing system is as follows:
(1) temperature monitoring process
When carrying out the temperature test, the rational arrangement power supply system plans to adopt the power supply mode of solar panel 4 and battery, if take place the data acquisition trouble, in time maintains, guarantees the data continuity. The sensor wire is taken out from the junction box and connected to the temperature recorder, a power switch of the recorder is started to start measurement and collection of temperature data, extreme weather and climate are marked, data of a weather bureau are downloaded at the same time, and change rules are analyzed in an auxiliary mode.
(2) Frequency of temperature acquisition
Abundant and accurate experimental data is the basis of scientific research, and the acquisition frequency is determined to be once every half hour, 48 data are acquired every day and data are continuously acquired all the year round in consideration of the periodicity and the actual condition of environmental change.
In a preferred scheme, the data acquisition instrument is provided with a wireless communication module, and communication is established with a cloud server through the wireless communication module so as to construct a cloud wireless automatic comprehensive monitoring system. The cloud wireless automatic comprehensive monitoring system is a comprehensive static data acquisition system which is full-automatic unattended measurement and has wired and wireless data transmission functions. The system can be connected with a string sensor, a temperature sensor 2, a static level sensor, a semiconductor temperature sensor, a standard voltage signal and the like. The system adopts a distributed structure and can form a multipoint wireless measurement system at will.
To sum up, the utility model provides a cable 1 and cable temperature test system is through at 1 inside temperature sensor 2 that sets up of cable to output through signal transmission line 3 the inside temperature data of 1 cable of built-in temperature sensor 2 measuring for external terminal, monitor the real-time temperature of cable 1 for external terminal, compare prior art, the utility model discloses can the accurate inside temperature of measuring cable 1, thereby help improving the accuracy of cable force change prediction of cable 1.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a cable, its characterized in that, including the cable body, set up at the inside temperature sensor of cable body and with temperature sensor connect, from the inside outside signal transmission line that extends of cable body, temperature sensor passes through signal transmission line and establishes communication with the outside terminal of body, is used for measuring the inside temperature data of cable body, and will temperature data passes through signal transmission line and transmits for external terminal.
2. The inhaul cable according to claim 1, wherein the temperature sensor comprises a plurality of temperature sensors, the plurality of temperature sensors are distributed in different areas inside the inhaul cable body and used for measuring temperature data of the different areas inside the inhaul cable body and transmitting the measured temperature data of the different areas inside the inhaul cable body to an external terminal through a signal transmission line.
3. A cable as claimed in claim 2, characterised in that the plurality of temperature sensors are distributed in different regions of the same axial cross-section of the cable body.
4. The pull cord of claim 3, wherein the plurality of temperature sensors comprises: the temperature sensor comprises a first temperature sensor arranged at the axial center position of the axial section, and a plurality of second temperature sensors evenly distributed around the first temperature sensor.
5. A cable as claimed in claim 4, further provided with a plurality of cable clips for securing the cable.
6. A stay according to any one of claims 1 to 5, further comprising a power transmission line connected to the temperature sensor and extending outwardly from the interior of the stay body, the temperature sensor being connected to an external power source via the power transmission line for the external power source to power the temperature sensor.
7. A cable temperature testing system, comprising:
the cable, data acquisition instrument and power supply of claim 6;
the power supply is connected with the temperature sensor in the inhaul cable through a power transmission line so as to supply power to the temperature sensor; the data acquisition instrument is communicated with the temperature sensor through a signal transmission line, so that the temperature sensor acquires temperature data inside the inhaul cable.
8. The cable temperature testing system according to claim 7, wherein the power supply comprises a solar panel and a storage battery, the solar panel is connected with a power supply input end of the storage battery, a power supply output end of the storage battery is connected with the temperature sensor in the cable through a power transmission line, the solar panel is used for collecting light energy and storing the electric energy into the storage battery after converting the light energy into the electric energy, and the storage battery is used for supplying power to the temperature sensor in the cable.
9. The inhaul cable temperature testing system of claim 7, wherein the data acquisition instrument comprises a wireless communication module, and the data acquisition instrument is connected with a remote server through the wireless communication module and used for sending acquired temperature data to the remote server for storage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221102221.6U CN217710328U (en) | 2022-05-09 | 2022-05-09 | Inhaul cable and inhaul cable temperature testing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221102221.6U CN217710328U (en) | 2022-05-09 | 2022-05-09 | Inhaul cable and inhaul cable temperature testing system |
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| Publication Number | Publication Date |
|---|---|
| CN217710328U true CN217710328U (en) | 2022-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221102221.6U Expired - Fee Related CN217710328U (en) | 2022-05-09 | 2022-05-09 | Inhaul cable and inhaul cable temperature testing system |
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| Country | Link |
|---|---|
| CN (1) | CN217710328U (en) |
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2022
- 2022-05-09 CN CN202221102221.6U patent/CN217710328U/en not_active Expired - Fee Related
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Granted publication date: 20221101 |