CN100460915C - Water application method optical cable laying and construction method - Google Patents
Water application method optical cable laying and construction method Download PDFInfo
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- CN100460915C CN100460915C CNB2007100414736A CN200710041473A CN100460915C CN 100460915 C CN100460915 C CN 100460915C CN B2007100414736 A CNB2007100414736 A CN B2007100414736A CN 200710041473 A CN200710041473 A CN 200710041473A CN 100460915 C CN100460915 C CN 100460915C
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Abstract
A water-installing optical cable installation construction method for construction technique fields pushes the optical cable into a pipe by a mechanical optical cable thruster. Simultaneity, the press-added current which forms a drag force on the surface of the optical cable is inputted into the pipe through a water intake apparatus by using a water press. The press of the water acts on a steering seal structure connected with the optical cable head to form a forward force. The optical cable is under a floating state by the flotage of the water. The AC servo motor and the water press are controlled by a controllor to install the optical cable. The invention has the advantages of: low energy consumption, high speed of installation, applicability of the complicated pipe path, achievement of safe and long-distance optical cable installation, samll volume of the whole equipment and applicability of the field work.
Description
Technical field
The present invention relates to a kind of method of construction engineering technical field, specifically is a kind of water application method optical cable laying and construction method.
Background technology
In the urban construction, fiber cable laying is a very important ring, and it is related to the smooth and easy of city communication.The rigidity of optical cable itself, the temperature value that can maximum bear have proposed very high requirement to laying.The failure accidents that facts have proved optical cable many times is owing to due to the damage in laying, cause tremendous loss.Traditional fiber cable laying method mainly contains following several: 1, mechanical haulage method; 2, optical fiber cable for direct burial method; 3, aerial optical cable; 4, subaqueous cable; 5, duct optical cable.These methods all are to come laying optical cable with the mechanical haulage method, can produce a lot of problems in the laid processes of tractive, and for example: method 1 tractive force is crossed the stretching transition that conference produces optical cable, and this will damage optical cable; Power consumption is very big in method 2 laid processes, and the friction force that optical cable is subjected to is very big, and the too high optical cable that may cause of temperature rise lost efficacy; Can not directly replace the optical cable that has laid during the upgrading of method 3 optical cables etc.At these problems that occur, people once released the air-blown installation method, had obtained certain effect.But use the air-blown installation method must consider whether the ratio between pipeline and the optical cable/microtubule is too small, have only both ratio to reach certain numerical value and might realize that just effective gas applies.
Find through literature search prior art, Jap.P. JP 2001086614 A, the technology that the gases at high pressure that this patent has proposed to utilize the air-blowing machine to blow out lay microtubule or little cable is specially the air-blowing machine high speed compressed air stream and optical cable that air compressor machine produces is sent into pipeline together.Because gases at high pressure are full of whole silicone tube space, thereby optical cable is suspended in the pipeline basically, even run into the bending right and left of silicone tube, dipping and heaving, also because the extremely low friction factor of tube wall internal layer solid silicone and friction force when reducing optical cable greatly and advancing.Because silicone tube inner high voltage gas flow drives optical cable at optical cable epidermis generation adhesion and advances in pipeline.Its deficiency is: the scope that 1) is applicable to the cable outer diameter that blows only is: φ 10-32mm; The inside diameter ranges of corresponding silicone tube is: φ 25-51mm.2) can not construct to the pipeline of high pressure resistant gas not.3) ratio between pipeline and the optical cable/microtubule can not be very little.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, a kind of water application method optical cable laying and construction method is provided, make it not only inherit the advantage of air blow off, and also very suitable when the thicker optical cable of the pipeline laying of less internal diameter, the use amount of water when the investment that the microtubule fasolculus that area is bigger not only can be lowered pipeline can reduce construction equally.Owing to do not need air compressor, alleviated weight of equipment and be convenient to transportation in addition, the transfer building site is easier.Water applies method with the same influence that does not produce resistance at the pipe bending place of air blow off, so laying optical cable in the pipeline of bending is had important effect.
The present invention is achieved by the following technical solutions, and the present invention utilizes the mechanical optical cable thruster that optical cable is advanced in the pipeline, and water pressure engine is sent into the current after pressurizeing in the pipeline by the water inlet device simultaneously, and the current of this high speed form a kind of power of pulling on the surface of optical cable; Very high hydraulic action with pilot seal structure that the optical cable head links to each other on (equal on the active area numerical value in the pipeline sectional area and optical cable sectional area poor), also produce a very big forward force.Owing to the effect of buoyancy of water, optical cable is in floating state simultaneously, and water can also play lubrication, and this has reduced the friction force between tube wall and the optical cable.The water method of applying has also reduced optical cable to greatest extent because fire damage causes the possibility that lost efficacy, and this is owing to specific heat of water is maximum, so the interior temperature rise of pipeline is minimum.Adopt controller that AC servo motor and hydraulic pressure are accurately controlled, regulate both relations, finally realize over distance laying optical cable safely and fast.
Method of the present invention comprises the steps:
Step 1, pilot seal structure and optical cable are connected for one section, put into pipeline after, load onto hermetically-sealed construction in pipeline opening, outer diameter tube is 90mm-180mm, the ratio of internal diameter of the pipeline and optic cable diameter is about 1.5;
Step 2, pump outlet passing ratio valve is connected on the water inlet on the hermetically-sealed construction, the water inlet pipe of hermetically-sealed construction inside is parallel with optical cable, can spray water along the direction of lay;
Step 3, at entrance thruster is installed, it is the ability of the optical cable of 65mm～105mm that this thruster possesses the diameter of promotion;
Step 4, power on for controller, motor driver, water pump;
Step 5, measure the required optic cable diameter that lays, lay distance, determine laying speed.And on controller, set optic cable diameter according to measured value, lay distance, laying speed; Optic cable diameter is 65mm-105mm, and the scope of disposable uninterrupted cabling distance is 400m-800m, and laying speed is that per minute is not less than 6m-12m.
Step 6, open water pump, in pipeline, inject the water that is added with lubricant, read the numerical value of pipeline porch hydraulic pressure sensor, and compare with the hydraulic pressure predetermined value, the current value of the aperture of output decision proportioning valve, and show current hydraulic pressure value;
Step 7, calculate required pretightning force of thruster and the required torque of motor by controller according to setting value programming; Concrete grammar is: by optic cable diameter, lay distance, laying speed and calculate tractive force that optical cable is pulled down from the optical cable roller and the pipeline fricative resistance to optical cable, both sums deduct the forward force that hydraulic pressure produces, the required propelling power that provides of thruster is provided, friction factor, thruster radius according to thruster and optical cable can obtain required minimum pretightning force again, and torque;
Step 8, on pressure exerting arrangement, manually apply pretightning force, controller is after definite pretightning force and hydraulic pressure value satisfy predetermined condition, to the actuator unit output signal of AC servo motor, set speed, the torque parameter of AC servo motor, start AC servo motor;
Step 9, by the coder module of controller, read the instantaneous velocity of AC servo motor.Read the instantaneous value of AC servo motor torque simultaneously, and all shown;
The actual speed that step 10, utilization are measured by coder module is carried out speed control and position control to motor driver, regulates laying speed and motor torque, in preventing to lay the accident that optical cable damages takes place;
Step 11, read the temperature value of check point, compare, adjust the speed that optical cable enters pipeline with the temperature upper limit of setting by sensor, promptly control the difference of temperature upper limit and actual temperature, make it greater than 0, when this difference becomes big, can be suitable reduce laying speed;
In step 12, the laid processes, collect the water that water inlet and pipe end place miss, filter the back and send water tank back to, with recycling by the loop;
After step 13, optical cable arrive the pipeline other end, pilot seal structure and thruster are pulled down from optical cable.
Step 14, to the inflation of the higher end of pipeline location, water is blown out pipeline, pipeline one end lower in the position collected the water that remains in the pipeline, after the filtration, recycles.
Theoretical analysis of the present invention and experimental result show that the deposited method energy consumption of water is low, and laying speed is faster, can adapt to complicated pipeline path, realize laying optical cable safety, long distance, and mechanical damage, the fire damage to optical cable all is minimum under any intermediate position normally.The volume of equipment set is very little, can carry easily, so can conduct a field operation.
Water of the present invention apply method by reasonably, the control of high reliability, can realize robotization, the intellectuality of laying fully, satisfied the needs of modern industry fully.Whole system has embodied the principle that economizes on resources as far as possible, has saved electric power resource greatly, has avoided the waste of water resource.
The present invention adopts AC servo to realize the precision control of thruster position, makes that the response of system is very fast, and governing speed avoids optical cable to cross pine or tension stably.
In sum, the present invention has huge advantage with respect to laying method in the past, and the work of finishing the fiber cable laying in the urban construction that can be outstanding is particularly suitable for costing an arm and a leg, the optical cable very high to security requirement.
Description of drawings
Fig. 1 is the system principle synoptic diagram.
Fig. 2 is the synoptic diagram (amplification of Fig. 1 sealing mechanism 5) of system's waterpower path.
Fig. 3 is thruster 4 schematic cross-sections (amplifications of Fig. 1 thruster 4).
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated: present embodiment has provided detailed embodiment and process being to implement under the prerequisite with the technical solution of the present invention, but protection scope of the present invention is not limited to following embodiment.
Among Fig. 1, pilot seal structure 6 and optical cable 3 are fixed together closely by bolt.Among Fig. 1, Fig. 2, the pump of entry is a pump 1, and the pump that water reclaims is a pump 2, and among Fig. 2, filtration unit 9 is in order to filter impurity such as earth, so that the protection pump.There is O-ring seal 8 pilot seal structure 6 inside, and the outside is a nylon structure, just in time cooperates with pipeline, have played the effect of sealing and guiding.On the water inlet that water pump 1 water delivering orifice passing ratio valve 7 is connected on the hermetically-sealed construction 5, can control flow, guarantee that force value is in about 4bar by the current value of control input proportioning valve 7.Water under high pressure about 4bar acts on the guide part pilot seal structure 6 of optical cable head, has played powerful forward force.
Installation sealing structure 5 then, as scheming: hermetically-sealed construction 5 is equipped with O-ring seal, purpose is spilling in a large number of anti-sealing, the water inlet 15 that connects water pump is housed at the four direction that is mutually 90 degree, make that waterpower is balance diametrically, the water inlet pipe of hermetically-sealed construction 5 inside is parallel with optical cable 3, can spray water along the direction of lay, and the current of this high speed form a kind of power that pulls forward on the surface of optical cable 3.
As shown in Figure 3, left driving wheel 10, right driving wheel 11, the wheel 12 of exerting pressure are mutually 120 degree.Left driving wheel 10, right driving wheel 11 are driven by same ac driver, to guarantee that actuating speed is identical.Be added with pressure transducer in the pressure exerting arrangement 13.
Thruster 4 is enclosed within on the optical cable 3, can obtains suitable tightness by regulating variable-diameter structure 14, the wheel 12 of exerting pressure, left driving wheel 10, right driving wheel 11 are mutually 120 degree.
Power on for controller, motor driver, water pump, can set the diameter of optical cable 3, lay distance, laying speed by touch-screen; The proportioning valve of controller opens water pump 1, injection is added with the water of lubricant in pipeline 2, and reads the numerical value of hydraulic pressure sensor, and compares with predetermined value, the current value of the aperture of output decision proportioning valve 7, and show current hydraulic pressure value.Controller carries out computing to above-mentioned numerical value immediately, calculates thruster 4 required pretightning force and the required torque of motor.The maximum pressure that the pretightning force here must can be born less than optical cable 3 prevents from optical cable 3 is weighed wounded.
Controller is after judging whether pretightning force and hydraulic pressure value satisfy predetermined condition, and to the actuator unit output signal of AC servo motor, setting speed, torque parameter start or stop AC servo motor.
The AC servo motor scrambler can accurately record motor speed, reads the instantaneous velocity of motor by the coder module of controller.AC servo motor can be measured the torque of self, reads the instantaneous value of torque with controller, and is all shown.
The value of feedback that utilization is measured is carried out speed control and position control to motor driver, regulates laying speed and motor torque, optical cable 3 takes place owing to the accident of too tightly damaging in preventing to lay.
Read the temperature value of check point by the pt100 sensor, compare, adjust the speed that optical cable 3 enters pipeline with reasonable range (being no more than 40 degrees centigrade).When being necessary, can doing to shut down and handle.
In the laid processes, collect the water that water inlet and pipeline 2 ends are missed, send water tank back to by loop water pump 2 after filtering out impurity by filtration unit 9, with recycling.After optical cable 3 arrives pipeline 2 other ends, untie fixing bolt, pilot seal structure 6 and thruster 4 are pulled down from optical cable 3.To the higher end inflation in pipeline 2 positions, water is forced out pipeline 2 then, pipeline 2 one ends lower in the position are collected the water that remains in the pipeline 2, after the filtration, recycle.
The utilization example: utilizing the AC servo motor of 5kw and Peak Flow Rate is 10m
3The water pump of/h according to above concrete steps, can successfully lay diameter and be 81mm, internal diameter of the pipeline and diameter ratio and be 1.5, the optical cable of length 800m stably, and laying speed is 12m/min, and specifically the hydraulic pressure that uses is 4bar.Lay respond wellly, do not cause a large amount of wastes of water, the optical cable temperature rise does not surpass 40 degree.
As can be seen from the above embodiments, present embodiment gives pipeline outer optical cable thrust forward with thruster, utilizes water that lubricated cooling effect is provided, and by controller AC servo motor and hydraulic pressure is accurately controlled, regulate both relations, realize over distance laying optical cable safely and fast.Recycling WATER AS FLOW MEDIUM, and suitable O-ring seal is installed, reduce the waste of water resource.The present invention has following good characteristic: energy consumption is low, and laying speed is faster, can adapt to complicated pipeline path, realizes laying optical cable safety, long distance.The volume of equipment set is very little, can adapt to field work.Be particularly suitable for costing an arm and a leg, the optical cable very high to security requirement.
Claims (8)
1. water application method optical cable laying and construction method, it is characterized in that, utilize the mechanical optical cable thruster that optical cable is advanced in the pipeline, send in the pipeline by the water inlet device with the current of water pressure engine after pressurization simultaneously, current form a kind of power of pulling on the surface of optical cable, hydraulic action with pilot seal structure that the optical cable head links to each other on, also produce a forward force, optical cable adopts controller that AC servo motor and hydraulic pressure are controlled because buoyancy of water is in floating state, realizes laying of optical cable; Specifically comprise the steps:
Step 1, pilot seal structure and optical cable are connected for one section, put into pipeline after, load onto hermetically-sealed construction in pipeline opening;
Step 2, pump outlet passing ratio valve is connected on the water inlet of hermetically-sealed construction;
Step 3, thruster is installed at entrance;
Step 4, power on for controller, motor driver, water pump;
Step 5, measure the required optic cable diameter that lays, lay distance, determine laying speed, and on controller, set optic cable diameter, lay distance, laying speed according to measured value;
Step 6, open water pump, in pipeline, inject the water that is added with lubricant, read the numerical value of pipeline porch hydraulic pressure sensor, and compare with the hydraulic pressure predetermined value, the difference of hydraulic pressure predetermined value and measured value determines the current value of the aperture of proportioning valve in proportion, and shows current hydraulic pressure value;
Step 7, calculate required pretightning force of thruster and the required torque of motor by controller according to setting value programming;
Step 8, on pressure exerting arrangement, manually apply pretightning force, controller is after definite pretightning force and hydraulic pressure value satisfy predetermined condition, to the actuator unit output signal of AC servo motor, set speed, the torque parameter of AC servo motor, start AC servo motor;
Step 9, by the coder module of controller, read the instantaneous velocity of AC servo motor, read the instantaneous value of AC servo motor torque simultaneously, and all shown;
Step 10, the actual speed of utilizing coder module to measure are carried out speed control and position control to motor driver, regulate laying speed and motor torque, in preventing to lay the accident that optical cable damages take place;
Step 11, read the temperature value of check point, compare, adjust the speed that optical cable enters pipeline with the temperature upper limit of setting by sensor;
In step 12, the laid processes, collect the water that water inlet and pipe end are missed, filter the back and send water pump back to, with recycling by the loop;
After step 13, optical cable arrive the pipeline other end, pilot seal structure and thruster are pulled down from optical cable;
Step 14, to the inflation of the high end of pipeline location, water is forced out pipeline, pipeline one end low in the position collected the water that remains in the pipeline, after the filtration, recycles.
2. water application method optical cable laying and construction method as claimed in claim 1 is characterized in that, in the described step 2, the water inlet pipe of hermetically-sealed construction inside is parallel with optical cable, can spray water along the direction of lay.
3. water application method optical cable laying and construction method as claimed in claim 1 is characterized in that, in the described step 3, at entrance thruster is installed, and this thruster possesses the ability of promotion 65mm～105mm optical cable.
4. water application method optical cable laying and construction method as claimed in claim 1 is characterized in that, in the described step 5, laying speed is per minute 6m-12m, and the scope of disposable continuous cabling distance is 400m-800m.
5. water application method optical cable laying and construction method as claimed in claim 1 is characterized in that, in the described step 6, the hydraulic pressure predetermined value is 4bar.
6. water application method optical cable laying and construction method as claimed in claim 1, it is characterized in that, in the described step 7, programming calculates required pretightning force of thruster and the required torque of motor by controller according to setting value, concrete grammar is: pass through optic cable diameter, lay distance, laying speed calculates tractive force that optical cable is pulled down from the optical cable roller and the pipeline fricative resistance to optical cable, both sums deduct the forward force that hydraulic pressure produces, obtain the required propelling power that provides of thruster, again according to the friction factor of thruster and optical cable, the thruster radius obtains required minimum pretightning force and torque.
7. water application method optical cable laying and construction method as claimed in claim 1 is characterized in that, described hydraulic action with pilot seal structure that the optical cable head links to each other on, its active area equals the poor of sectional area and optical cable sectional area in the pipeline.
8. as claim 1 or 7 described water application method optical cable laying and construction methods, it is characterized in that described optic cable diameter is 65mm-105mm, outer diameter tube is 90mm-180mm, and the ratio of internal diameter of the pipeline and optic cable diameter is 1.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100414736A CN100460915C (en) | 2007-05-31 | 2007-05-31 | Water application method optical cable laying and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100414736A CN100460915C (en) | 2007-05-31 | 2007-05-31 | Water application method optical cable laying and construction method |
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| Publication Number | Publication Date |
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| CN101055340A CN101055340A (en) | 2007-10-17 |
| CN100460915C true CN100460915C (en) | 2009-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100414736A Expired - Fee Related CN100460915C (en) | 2007-05-31 | 2007-05-31 | Water application method optical cable laying and construction method |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102412036B (en) * | 2010-09-21 | 2015-06-10 | 湖北省电力公司襄阳供电公司 | Manufacturing method of optical fiber composite insulator and equipment |
| CN105312195B (en) * | 2015-09-25 | 2017-11-07 | 烽火通信科技股份有限公司 | Fiber cable laying rifle and its stealthy laying method of inside cable |
| CN107065110A (en) * | 2017-02-24 | 2017-08-18 | 中清盈创（北京）科技有限公司 | A kind of method that application liquid working substance carries out fibre optic installations in pipeline |
| CN111090155B (en) * | 2020-01-17 | 2022-07-26 | 国兴汇金(深圳)科技有限公司 | Optical fiber armoring device |
| CN113917637B (en) * | 2021-10-26 | 2022-11-18 | 长飞光纤光缆股份有限公司 | All-dielectric optical cable and laying method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2122367A (en) * | 1982-05-06 | 1984-01-11 | Standard Telephones Cables Ltd | Laying cables |
| JP2001086614A (en) * | 1999-09-13 | 2001-03-30 | Nippon Comsys Corp | Cable laying method |
| CN2775696Y (en) * | 2005-03-17 | 2006-04-26 | 江苏亨通光电股份有限公司 | Environment protection mouse-proof light drainage pipeline top layer laying self bearing optical cable |
-
2007
- 2007-05-31 CN CNB2007100414736A patent/CN100460915C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2122367A (en) * | 1982-05-06 | 1984-01-11 | Standard Telephones Cables Ltd | Laying cables |
| JP2001086614A (en) * | 1999-09-13 | 2001-03-30 | Nippon Comsys Corp | Cable laying method |
| CN2775696Y (en) * | 2005-03-17 | 2006-04-26 | 江苏亨通光电股份有限公司 | Environment protection mouse-proof light drainage pipeline top layer laying self bearing optical cable |
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| CN101055340A (en) | 2007-10-17 |
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