• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention comprises a process positioning and process control unit (1) for process control of a flushing hose (2) with flushing nozzle (3) for cleaning waste water lines, wherein the flushing hose (5 2) is mounted on a cylindrical flushing hose drum (4) and wherein the flushing hose drum has a rotational position wherein the unit comprises an encoder (5), a direction of rotation indicator (5a) and a memory unit (6), wherein: - the encoder (5) is designed to deliver a fixed number of electrical pulses per second. rotation of the coil hose drum (4), - the direction of rotation indicator (5a) is designed to determine a direction of rotation of the coil hose drum (4), and - the memory unit (6) is provided with an address for storing data related to the electrical pulses from the encoder (5) and from the rotation direction indicator (5a) to determine the rotational position of the coil hose drum (4), where the storage of data is maintained independently of power supply to the memory unit (6). In addition, the invention encompasses uses of the process positioning and process control unit. The invention provides an improved control of a flushing process by a wastewater.
    公开号:DK201300571A1
    申请号:DK201300571
    申请日:2013-10-08
    公开日:2015-03-23
    发明作者:Hans Larsen
    申请人:Hvidtved Larsen As J；
    IPC主号:
    专利说明:

    Process positioning and process control was used for process control of a coil hose as well as applications
    The invention relates to a process positioning and process control unit for process control of a flushing hose with flushing nozzle for cleaning wastewater pipes in which the flushing hose is mounted on a cylindrical flushing hose drum.
    In addition, the invention relates to the use of the process positioning and process control unit for positioning and controlling a flushing hose in connection with wastewater pipe cleaning.
    In addition, the invention relates to the use of the process positioning and process control unit for determining the coil length of a coil in connection with wastewater pipe cleaning.
    Further, the invention relates to the use of the process positioning and process control unit for determining the current velocity of a coil nozzle in connection with wastewater pipe cleaning.
    In addition, the invention relates to the use of the process positioning and process control unit for controlling the current speed of a coil nozzle relative to a predetermined rate of movement of the coil nozzle in connection with purification of wastewater pipes.
    In addition, the invention relates to the use of the process positioning and process control unit for fully or partially automatic regulation of a flushing process in connection with wastewater pipe cleaning.
    Wastewater pipe cleaning will traditionally be carried out with a mobile system which has fitted a dirt extraction system, as well as a powerful high pressure coil pump connected to a coil hose drum which can rotate and thereby store, roll out and roll a given number of coil hose. At the outer end of the coil hose is mounted a purpose-designed coil nozzle provided with a suitable number of holes of suitable diameter, substantially rearwardly.
    The flushing process is then started by inserting the flushing nozzle into the well and into the wastewater to be cleaned. The flushing hose is then pressurized so that the flushing water is now pushed backwards through the nozzle holes with great force. The reaction of these backward water jets causes the nozzle to pull itself forward and upward through the conduit, with the coil hose trailing behind it. Since this first phase is primarily just a transport process and not an actual purification process, this must be done with the least possible water consumption, that is to say as soon as possible, with the transmission of the coil hose drum coupled in free flow. When the nozzle has reached the next well, the actual cleaning process starts by - with continued high pressure - continuing to pull the now reluctant flush nozzle back home at a suitably slow pace, leaving the waste water pipe completely clean and the dirt being pulled outwards and downwards through cord. In the lower well, during the entire flushing process, the suction system is sucked up into a tank. If there is so much dirt in the cord that it cannot be completely cleaned in one process, the process can be repeated as needed.
    During reeling on the coil hose drum, the coil hose should preferably be laid so that for each coil drum rotation, the coil hose reel point is displaced one axial direction until the end of the coil drum and hose layer is full, then the shear direction is changed and the next hose layer is positioned opposite. direction. This process can be done manually, but since there is great effort and simultaneously unilateral repetitive work, there are great benefits to automating the process.
    The classic construction of a mechanical hose guide is based on a double-cut worm drive with swinging slides. The rotation of the worm is driven directly from the drum rotation via a mechanical transmission with appropriate exchange ratios, thereby having a mechanical permanent memory. The oscillating slide is mechanically coupled to a set of guide rollers that continuously handle the axial movement of the hose.
    However, it has been found that there are some drawbacks to this prior art with such mechanical memory. Construction is thus heavy, and at the same time it is both vulnerable, maintenance-intensive and wear-and-tear. This is further enhanced by both sharp cracking angles on the flush hose and the harsh high pressure water and salt mist environment at the back of a mud cleaner / flusher.
    It is therefore an object of the invention to provide a process positioning and process control unit for a coil hose without the above disadvantages.
    The object of the invention is met by a process positioning and process control unit for process control of a flushing hose with flushing nozzle for cleaning wastewater, wherein the flushing hose is mounted on a cylindrical flushing hose drum with an axial length, and a rotational positioning characteristic of the process control unit comprises an encoder, a rotation direction indicator and a memory unit, in which: - the encoder is designed to deliver a fixed number of electrical pulses per second. rotation of the coil hose drum, - the direction of rotation indicator is designed to determine a direction of rotation of the coil hose drum, and - the memory unit is provided with an address for storing data related to the electrical pulses from the encoder as well as from the rotation direction indicator for determining the rotational position of the coil hose drum. of data is maintained independently of power supply to the memory device.
    Thus, with the process positioning and process control unit according to the invention, the coil hose drum is equipped with an encoder which emits a fixed number of electrical pulses per second. drum revolution. This electrical signal is used to inform about the rotational speed and position of the drum, measured in, for example, rpm. minute.
    In addition, the process positioning and process control unit of the invention comprises a rotation direction indicator for determining a direction of rotation of the coil hose drum. Thus, the use of such a rotational direction indicator allows not only registration of the speed of rotation of the coil hose drum, but also its direction of rotation.
    The memory device is capable of electronically recording and storing the current flushing drum situation, regardless of power outages, emergency stops or other interruptions in the workflow, such as noon break or four o'clock.
    Thus, the memory position of the process positioning and process control unit has a permanent electronic memory for the drum situation, for example by using '' Reminent Data Memory '' in that unit. '' Reminent Data Memory '' is a special address in the memory device that can be continuously written / overwritten. The last value entered will always reappear when the unit is turned on, even after an arbitrarily long power failure.
    The process positioning and process control unit according to the invention defines a specific basic situation for the coil hose drum, from which the process positioning and process control unit, using the memory unit herein, is capable of continuously maintaining a permanent '' pulse accounting '' where the current accumulated pulse numbers from the encoder at any time will represent a very specific position of the coil hose drum.
    Thus, with the process positioning and process control unit according to the invention, a well-functioning unit is obtained, where the process control of the coil hose is carried out electronically and without the disadvantages of a mechanical memory function - or the disadvantages of conventional microprocessor technology, where the input data is reset in the event of a power cut. In the context of this invention, the "rotary position of the reel hose drum" is defined as the accumulated angle of rotation of the reel hose drum, based on the total accumulated and directionally adjusted pulse number, i.e. the rotation position comprises the total net number of rotations + the angle relative to a base position.
    According to claim 2, the process positioning and process control unit can control a hose guide for positioning the coil hose in the axial length of the coil hose drum based on the data stored in the memory unit so that there is continuous correspondence between the axial position of the coil hose and the rotational position of the coil hose drum.
    The hose guide can then be moved continuously so that there is continuous correspondence between the axial position of the coil hose and the rotational position of the coil hose drum, which, on the basis of the electronic memory, allows precise control of the coil hose and drum.
    As set forth in claim 3, the process positioning and process control unit may further comprise a hose guide which is designed to comprise at least one guide roller for positioning the coil hose in the axial length of the coil hose drum, wherein the at least one guide roller is axially movable and wherein its axial movement is operated hydraulically by means of a hydraulic cylinder on the basis of the data stored in the memory unit, so that there is continuous correspondence between the axial position of the at least one guide roller and the rotational position of the coil hose drum.
    With the hose guide, the axial movement of a hydraulic cylinder is handled instead of a purely mechanical construction. Such a hydraulic design is both strong, robust and requires no maintenance.
    Thus, with the process positioning and process control unit according to claim 3, a further well-functioning unit is obtained, where the process control of the coil hose is carried out electronically and where the energy supply and the power influence of coil hose and hose control are hydraulic.
    As stated in claim 4, the hose guide may further comprise an axial position gauge for determining the position of the at least one guide roller.
    With such an axial position meter, the actual hose control position in the form of the guide roller position can be recorded and it can be determined if the position matches the desired hose control position of the pulse calculator. The hose control position can then be continuously adjusted accordingly. The control process is carried out by activating the hydraulic movement via short electrical pulses to an on / off hydraulic valve or alternatively a signal operating an analog hydraulic valve can be used.
    As stated in claim 5, the position meter is preferably electronic, further preferably laser-based or magnetic with a high measurement accuracy.
    The process positioning and process control unit according to the invention can furthermore be designed such that the coil hose has a roll-out length indicated at the position of the coil nozzle, and the memory unit further comprises an address for storing data related to the coil hose drum dimension and the coil hose dimension for determining the coil length of the coil hose drum assembly. dimension and the coil hose dimension. Thus, when an obstacle that cannot be washed away is occasionally encountered during sewage rinsing, it is necessary to dig down to the relevant pipeline. When locating the obstacle via flushing, it is a great advantage if the coil operator is able to detect the distance from the coil well to the blocking obstacle as an important information to the excavator operator. Therefore, it is advantageous to be able to determine the coil length of the coil in relation to a reference point.
    The electronic solution according to the invention allows a more accurate determination than the prior art, which operates by measuring by means of a mechanical measuring wheel. According to the invention, the coil length of the coil tube is determined on the basis of an algorithm. In practice, the coil circumference of the coil will change gradually, resulting in a relatively complicated algorithm. Alternatively, a simpler algorithm may be used which is based on successive increase of the coil hose winding circumference.
    In addition, the process positioning and process control unit of the invention may comprise a timing function for determining the actual speed at which the coil nozzle is moved, when comparing the timing function and the roll-out length.
    Thus, when cleaning wastewater pipelines using flushing hose technology with rocket nozzle, it is important to choose the optimum nozzle speed in the pipeline. If the nozzle is pulled in too slowly, the water consumption becomes very large, and if the nozzle is drawn in too quickly, the cleaning will be deficient.
    With knowledge of the dimensions of the coil hose drum and the coil hose one can continuously record at any time the calculated number of hose meters that are wound up on the drum. By combining this with a time function again, the instantaneous nozzle speed can be continuously recorded and displayed in a display.
    If you continuously combine changes in the meter accounts with the electronic control unit's integrated time function, the current speed can be calculated and displayed continuously. This readout value of the current nozzle speed can be continuously monitored, and from this decide when and how much to compensate.
    In addition, it is possible to fine-compensate the nozzle velocity calculation by including the length changes of the coil hose resulting from both the water pressure and the current pulling force.
    With this embodiment of the invention, an improved control over the nozzle speed relative to manual control thereof is achieved, for example by manually adjusting the oil flow in a hydraulic valve, or by remote control of the nozzle speed which will vary with the drum speed and the degree of reeling.
    In addition, it is valuable that - once you face a similar task at a later date - you can easily and quickly find the right speed parameter.
    Further preferably, the process positioning and process control unit of the invention may comprise a control unit containing data about a predetermined movement speed of the coil nozzle to control the actual speed at which the coil nozzle is moved relative to the predetermined movement speed of the coil nozzle.
    Thus, if the desired nozzle speed has been programmed into the memory position of the process positioning and process control unit, the unit will continuously be able to keep the current nozzle speed up to the desired nozzle speed and thus continuously adjust a regulating change of the speed signal to the coil hose drum, so that the nozzle speed can be kept constant throughout coating.
    The process positioning and process control unit of the invention may have stored in the memory unit one or more additional process parameters of a flushing process for fully or partially automatic control of the flushing process. Such process parameters may preferably comprise general process parameters from the group of process parameters comprising relationships between coil hose material, fluid flow and pressure in the coil hose, relationships between coil nozzle sizes and designs, and coil and vacuum pump placement and exchange.
    Further or alternatively, the process parameters may include individual process parameters from specific wells from the group of process parameters comprising well depth and well diameter, as well as the wastewater material, diameter, length, fall and degree and nature of dirt and water flow.
    In this preferred embodiment of the invention, it is possible to eliminate the variation in the estimation of changing operators as to which parameters are best suited for a specific coil task. Thus, the process positioning and process control unit can be pre-programmed with general data and / or individual data specific to the particular plant, as well as necessary information from the operator about the specific job, thereby causing the unit to take over, in whole or in part, the control of the flushing process.
    Thus, by additionally programming scientifically optimized correlations between the flushing process parameters, as well as individual data specific to the particular plant, the operator's efforts can be limited to defining and encoding characteristics specific to the particular job, such as depth of well, conduit material, diameter, length, fall, degree and nature of dirt and water flow.
    Another aspect of the invention comprises the use of the process positioning and process control unit of the invention for positioning and controlling a flush hose in connection with wastewater pipe cleaning.
    A third aspect of the invention comprises using the process positioning and process control unit of the invention to determine the coil length of a coil in connection with the purification of wastewater pipes.
    A fourth aspect of the invention comprises the use of the process positioning and process control unit of the invention for determining the actual velocity of a flush nozzle in connection with wastewater pipe cleaning.
    A fifth aspect of the invention comprises the use of the process positioning and process control unit of the invention for controlling the current speed of a coil nozzle relative to a predetermined rate of movement of the coil nozzle in connection with purification of wastewater pipes.
    A sixth aspect of the invention comprises the use of the process positioning and process control unit of the invention for fully or partially automatic control of a flushing process in connection with wastewater pipe cleaning.
    The invention will then be explained in more detail with reference to the figures, in which:
    FIG. 1 shows the process positioning and process control unit according to the invention.
    FIG. 2 shows known technology in the form of mechanical hose guide with double cut worm drive.
    FIG. 3 shows the hydraulic cylinder from the process positioning and process control unit according to the invention. Referring now to Figure 1, the process positioning and process control unit according to the invention, comprising the encoder 5, the rotation direction indicator 5a and the memory unit 6, is indicated.
    The encoder 5 and the rotation direction indicator 5a, which are integrated with the encoder 5, are mounted on the hose drum 4 which holds the coil hose 2 with the coil nozzle 3.
    The encoder 5 emits electrical pulses per second. rotation of the coil hose drum 4, the direction of rotation of which is simultaneously determined by the rotation direction indicator 5a, and data from it is stored in the memory unit 6, which can control a hose guide 7 with a hydraulic cylinder 9, so that the coil hose 2 is continuously held in the correct axial position by the guide roller 8. The position of the guide roller 8 is monitored by the laser based position meter 10.
    The known technology in the form of a mechanical hose guide shown in Figure 2 comprises mechanical transmission unit 21, which searches for the correspondence between the hose drum and the double-cut worm drive 22, which via the swinging slide 23 and the guide rollers 24 provides for the mechanical positioning of a coil hose (not shown ). Figure 3 shows the hydraulic cylinder 9 from the process positioning and process control unit 1 according to the invention. The cylinder comprises an outer, displaceable telescope tube 41 and an inner, fixed telescope tube 42 which are movable relative to each other and separated by a polypropylene plastic 43 wear intermediate layer. The laser-based position gauge 10 detects the position of the guide roller by the laser beam 44 with aiming point 45 .
    权利要求:
    Claims (16)
    [1]
    A process positioning and process control unit (1) for process control of a flushing hose (2) with flushing nozzle (3) for cleaning wastewater, wherein the flushing hose (2) is mounted on a cylindrical flushing hose drum (4) and wherein the flushing hose drum has a rotational position, characterized in that the process positioning and process control unit comprises an encoder (5), a rotation direction indicator (5a) and a memory unit (6), wherein: - the encoder (5) is designed to deliver a fixed number of electrical pulses per second. rotation of the coil hose drum (4), - the direction of rotation indicator (5a) is designed to determine a direction of rotation of the coil hose drum (4), and - the memory unit (6) is provided with an address for storing data related to the electrical pulses from the encoder (5) and from the rotation direction indicator (5a) to determine the rotational position of the coil hose drum (4), where the storage of data is maintained independently of power supply to the memory unit (6).
    [2]
    The process positioning and process control unit (1) according to claim 1, characterized in that the unit (1) controls a hose guide (7) for positioning the coil hose (2) in the axial length of the coil hose drum (4) based on the memory stored in the memory unit (6). data so that there is continuous correspondence between the axial position of the coil hose (2) and the rotational position of the coil hose drum (4).
    [3]
    The process positioning and process control unit (1) according to claim 2, characterized in that the unit (1) further comprises a hose guide (7) which is designed to comprise at least one guide roller (8) for positioning the coil hose (2) in the axial length of the coil hose drum (4), in which the at least one guide roller (8) is axially movable and wherein its axial movement is controlled hydraulically by means of a hydraulic cylinder (9) on the basis of the data stored in the memory unit (6) so that there is continuous correspondence between the axial position of the at least one guide roller (8) and the rotational position of the coil hose drum (4).
    [4]
    The process positioning and process control unit (1) according to claim 3, characterized in that the hose guide (7) further comprises an axial position meter (10) for determining the position of the at least one guide roller (8).
    [5]
    The process positioning and process control unit (1) according to claim 4, characterized in that the position meter (10) is electronic, preferably laser-based or magnetic.
    [6]
    The process positioning and process control unit (1) according to one or more of claims 1-5, characterized in that the coil hose (2) has a roll-out length indicated at the position of the coil nozzle (3), and the memory unit (6) further comprises an address for storing data. related to the dimension of the reel hose drum (4) and the dimension of the reel hose (2) to determine the roll-out length by assembling the rotational position of the reel hose drum (4) and the dimension of the reel hose drum (4) and the dimension of the reel hose (2).
    [7]
    The process positioning and process control unit (1) according to claim 6, characterized in that the memory unit (6) further comprises a timing function for determining the current velocity at which the coil nozzle (3) is moved, when compiling the timing function and the roll-out length.
    [8]
    The process positioning and process control unit (1) according to claim 7, characterized in that the memory unit (6) further comprises a control unit containing data concerning a predetermined movement speed of the coil nozzle (3) for controlling the current speed at which the coil nozzle (3) is moved in relation to to the predetermined speed of movement of the coil nozzle (3).
    [9]
    The process positioning and process control unit (1) according to claim 8, characterized in that the memory unit (6) further comprises additional process parameters for a coil process for fully or partially automatic control of the coil process.
    [10]
    The process positioning and process control unit (1) according to claim 9, characterized in that the process parameters comprise general process parameters from the group of process parameters including relationships between coil hose material, fluid flow and pressure in the coil hose (2), relationships between coil nozzle sizes and coil nozzle designs, and coil dump and vacuum designs. and exchange.
    [11]
    The process positioning and process control unit (1) according to claim 9, characterized in that the process parameters comprise individual process parameters from specific wells from the group of process parameters comprising well depth and well diameter, as well as the wastewater material, diameter, length, drop and degree and nature of dirtiness and flow.
    [12]
    Use of the process positioning and process control unit (1) according to one or more of claims 1-5 for positioning and controlling a flushing hose (2) in connection with wastewater pipe cleaning.
    [13]
    Use of the process positioning and process control unit (1) according to claim 6 for determining the roll-out length of a flushing hose (2) in connection with cleaning of wastewater pipes.
    [14]
    Use of the process positioning and process control unit (1) according to claim 7 for determining the current velocity of a flush nozzle (3) in connection with wastewater pipe cleaning.
    [15]
    Use of the process positioning and process control unit (1) according to claim 8 for controlling the actual speed of a coil nozzle (3) relative to a predetermined rate of movement of the coil nozzle (3) in connection with purification of wastewater pipes.
    [16]
    Use of the process positioning and process control unit (1) according to one or more of claims 9-11 for fully or partially automatic control of a flushing process in connection with wastewater pipe cleaning.
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    同族专利:
    公开号 | 公开日
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    WO2015032406A2|2015-03-12|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DK201300510|2013-09-09|
    DKPA201300510|2013-09-09|
    DKPA201300571A|DK178273B1|2013-09-09|2013-10-08|Process positioning and process control unit for process control of a coil hose as well as applications|
    DK201300571|2013-10-08|DKPA201300571A| DK178273B1|2013-09-09|2013-10-08|Process positioning and process control unit for process control of a coil hose as well as applications|
    EP14842833.7A| EP3044149B1|2013-09-09|2014-08-20|Device carrying a wash-down hose and process positioning and process control unit|
    PCT/DK2014/050247| WO2015032406A2|2013-09-09|2014-08-20|Process positioning and process control unit for process control of a wash-down hose and uses|
    US14/916,389| US20160199889A1|2013-09-09|2014-08-20|Process positioning and process control unit for process control of a wash-down hose and uses|
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