CN112985714A - Detection positioning device for pressure pipeline leakage point - Google Patents
Detection positioning device for pressure pipeline leakage point Download PDFInfo
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- CN112985714A CN112985714A CN202110144012.1A CN202110144012A CN112985714A CN 112985714 A CN112985714 A CN 112985714A CN 202110144012 A CN202110144012 A CN 202110144012A CN 112985714 A CN112985714 A CN 112985714A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
- G01M3/2815—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
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- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a detection and positioning device for a pressure pipeline leakage point, which comprises an air pipe, a communicating piece, a first supporting piece, a sealing ring, a moving mechanism and a second supporting piece, wherein the first supporting piece and the second supporting piece are respectively fixed at two ends of the communicating piece, the sealing ring surrounds the communicating piece and is respectively attached to the first supporting piece and the second supporting piece, the moving mechanism is fixed around the first supporting piece and the second supporting piece and is attached to a pipeline, the air pipe penetrates through the second supporting piece and is connected with the communicating piece, and a steel wire is connected to the second supporting piece. According to the invention, air is pressed into the communicating piece through the air pipe, the communicating piece firstly sends the air into the sealing ring, when the pressure of the sealing ring reaches a certain degree, the communicating piece sends the air into the cavity formed between the sealing ring and the pipeline, whether the pipeline has a leak point or not is judged by detecting the change of the pressure intensity of the cavity, and the device realizes the function of detecting and positioning the leak point position of the pressure pipeline.
Description
Technical Field
The invention relates to the technical field of leakage point detection devices, in particular to a pressure pipeline leakage point detection and positioning device.
Background
The pressure pipeline is easy to cause the condition of water leakage of the built-in pressure pipeline due to the problems of installation or pipeline quality, and the detection and the positioning of a pipeline leakage point are troublesome when the built-in pressure pipeline leaks water. At present, pressure pipeline leakage detection mainly depends on manual observation to judge leakage points, and the problems of low efficiency, high misjudgment rate and the like exist in the mode, so that the problem of pipeline leakage cannot be solved in time generally. Therefore, a device for detecting and positioning a pressure pipeline leakage point is developed to solve the above problems.
Disclosure of Invention
The invention aims to provide a detection positioning device for pressure pipeline leakage points, which aims to solve the problems of low efficiency and high misjudgment rate of the conventional pressure pipeline leakage detection method in the background art, wherein the leakage points are judged mainly by manual observation.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a detection positioner of pipeline under pressure leak source, includes trachea, communicating part, first support piece, sealing ring, motion, second support piece and steel wire, first support piece and second support piece are fixed in the communicating part both ends respectively, the sealing ring encircles the communicating part, and laminates with first support piece, second support piece respectively, be fixed with motion around first support piece, the second support piece, and motion and pipeline under pressure laminate, the trachea passes second support piece and is connected with the communicating part, the steel wire is connected in second support piece.
Preferably, the connecting piece includes a plurality of first ventholes, a plurality of second ventholes and one-way linker, first venthole, second venthole all exist in the surface of connecting piece, a plurality of second ventholes are located connecting piece both sides, encircle the distribution, and all communicate with the sealing ring, a plurality of first ventholes are located connecting piece middle part position, and encircle connecting piece and distribute.
Preferably, one-way linker includes air lock, spacing spring and first limit stop, first limit stop is fixed in the communicating piece inner wall, the air lock front end is the toper, and the middle part is cylindrically, and the rear end is the circular slab, the cylindrical position of spacing spring cup joint on the air lock, and fixed connection is between the circular slab of first limit stop and air lock, the conical position and the closely laminating of communicating piece inner wall of air lock.
Preferably, the second support member has a fixing ring on its surface, and the wire is connected to the second support member by the fixing ring.
Preferably, the trachea end is fixed with the trachea connector, the trachea passes through trachea connector and intercommunication piece swivelling joint.
Preferably, the movement mechanism includes: the device comprises a motion mechanism shell, a sliding chute, a sliding block, a linkage part, a driving special-shaped gear, a driven special-shaped gear, a supporting spring, a motion foot, a limiting shaft, a driving shaft and a first motor;
the motion mechanism shell is fixed on the first supporting piece or the second supporting piece, the first motor is fixed on the outer wall of the motion mechanism shell, the output end of the first motor is connected with the driving shaft, the driving special-shaped gear and the driven special-shaped gear are hinged to the inner surface of the motion mechanism shell, the driving shaft is fixed with the driving special-shaped gear, the toothed end of the driving special-shaped gear is meshed with the driven special-shaped gear, the other end of the driving special-shaped gear is hinged to the middle of the linkage piece, one end of the linkage piece is hinged to the sliding block, the sliding block is located in the sliding groove, the other end of the linkage piece is fixed with the limiting shaft, the supporting spring is sleeved on the limiting shaft and is in contact.
Preferably, the sports foot is made of rubber, and anti-skid patterns exist on the surface of the sports foot.
Preferably, the wire drawing device further includes a travel distance calculation device connected to the other end of the wire, the travel distance calculation device including: the wire collecting mechanism comprises a base motor, a second motor, an output shaft, a wire collecting mechanism, a number indicating mechanism, a fixed seat and a self-locking mechanism;
the second motor is fixed on the base motor, one end of the output shaft is connected with the output end of the second motor, the other end of the output shaft is connected with the line concentration mechanism, the number indicating mechanism is connected with the line concentration mechanism, the line concentration mechanism and the number indicating mechanism are both fixed on the fixed seat, an opening is formed in the upper surface of the line concentration mechanism, and the self-locking mechanism is located in the opening in the upper surface of the line concentration mechanism;
the wire collecting mechanism comprises a second limit stop, a fluted disc, a wire collecting mechanism shell and two wire collecting discs, the other end of the output shaft penetrates through the wire collecting mechanism shell, the other end, close to the output shaft, of the output shaft is connected with the fluted disc, the two wire collecting discs are fixed on the fluted disc and symmetrically distributed around the wire collecting discs, and the second limit stop is fixed on the inner surface of the wire collecting mechanism shell;
the self-locking mechanism comprises a spring connecting block, a rotating spring, a spring fixing shaft, a steel wire limiting hole and a self-locking shifting sheet, the self-locking shifting sheet is hinged to the inner surface of the shell of the line concentration mechanism through the spring fixing shaft, the spring connecting block is fixed on the self-locking shifting sheet, the rotating spring is sleeved on the spring fixing shaft, one end of the rotating spring is fixed on the spring connecting block, the other end of the rotating spring is fixed on the spring fixing shaft, and the steel wire limiting hole is located on the self;
the number indicating mechanism comprises a first gear, a second gear, a third gear, a fourth gear, a first pointer, a second pointer, a first dial and a second dial, the other end of the output shaft penetrates through the line concentrating mechanism to be connected with the first gear, the first gear is meshed with the second gear, the third gear is fixed on the second gear, the fourth gear is meshed with the third gear, the first pointer is fixed on the first gear, the second pointer is fixed on the fourth gear, the first dial is located between the first gear and the first pointer, and the second dial is located between the fourth gear and the second pointer.
Preferably, still include steel wire state detection device, steel wire state detection device includes:
a speed sensor provided on the second support for detecting a moving speed of the second support;
the tension sensor is arranged at the joint of the steel wire and the second supporting piece and used for detecting the tension of the steel wire on the second supporting piece;
the timer is used for recording the movement time of the detection positioning device of the pressure pipeline leakage point;
the counter is used for recording the using times of the detection positioning device of the pressure pipeline leakage point;
the alarm is positioned outside the pressure pipeline;
the controller, the controller respectively with speedtransmitter, force sensor, counter, alarm electric connection, the controller is based on speedtransmitter, force sensor, counter control alarm work includes:
step 1: the controller obtains the speed of the steel wire based on the speed sensor and a formula (1):
V＝V0ρ (1)
wherein V is the speed of the wire, V0The speed of the second supporting piece is detected by the speed sensor, and rho is a characteristic parameter of the steel wire with speed change caused by external force;
step 2: the controller calculates a steel wire state index based on the tension sensor, the timer, the step 1 and the formula (2):
wherein A is a steel wire state index, NαFor the grooving coefficient, B is the counter record the number of times that the detection positioner of pipeline under pressure leak source has been used, K is the factor of safety of the detection positioner of pipeline under pressure leak source, theta is the steel wire diameter, M is the detection positioner's of pipeline under pressure leak source weight, FfThe friction force between the motion mechanism and the inner wall of the pipeline is adopted, F is the tension force of the steel wire on the second supporting piece, which is obtained by the detection of the tension sensor, t is the motion time of the detection positioning device of the pressure pipeline leakage point, which is recorded by the timer when the B +1 th detection is carried out, e is a natural constant, the value is 2.72, and N is adoptedβIs the steel wire lubrication coefficient, L is the steel wire length;
and when the steel wire state index exceeds a preset reference value range, the controller controls the alarm to give an alarm.
Drawings
FIG. 1 is a schematic diagram of the basic structure of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic view of the construction of the communication member of the present invention;
FIG. 4 is a schematic view of the internal structure of the communicating member of the present invention;
FIG. 5 is a schematic view of a one-way connector of the present invention;
FIG. 6 is a schematic view of a second support member according to the present invention;
FIG. 7 is a schematic view of the kinematic mechanism of the present invention;
FIG. 8 is a schematic view of the relative position of the housing of the motion mechanism and the first motor of the present invention;
FIG. 9 is a schematic view of a travel distance calculating apparatus according to the present invention;
FIG. 10 is a schematic view of a hub mechanism of the travel distance calculating apparatus according to the present invention;
FIG. 11 is a schematic structural view of a self-locking mechanism of the travel distance calculating apparatus according to the present invention;
FIG. 12 is a schematic view of a self-locking paddle of the travel distance calculating device of the present invention;
FIG. 13 is a schematic view of a structure of a counting mechanism of the travel distance calculating apparatus according to the present invention;
fig. 14 is an external view of a counting mechanism of the travel distance calculating apparatus according to the present invention.
In the figure: 1. a pipeline; 2. an air tube; 3. a communicating member; 31. a first air outlet hole; 32. a second air outlet; 33. a one-way communicator; 331. an air lock; 332. a limiting spring; 333. a first limit stop; 4. a first support member; 5. a seal ring; 6. a motion mechanism; 60. a motion mechanism housing; 61. a chute; 62. a slider; 63. a linkage member; 64. a driving special-shaped gear; 65. a driven special-shaped gear; 66. a support spring; 67. A sport foot; 68. a limiting shaft; 69. a drive shaft; 691. a first motor; 7. a second support member; 8. a missing point; 9. a steel wire; 10. a fixing ring; 11. a gas pipe connector; 12. a base motor; 13. a second motor; 14. an output shaft; 15. a line concentration mechanism; 151. a second limit stop; 152. a fluted disc; 153. a wire-collecting mechanism housing; 154. a wire collecting disc; 16. a number indicating mechanism; 161. a first gear; 162. a second gear; 163. A third gear; 164. a fourth gear; 165. a first pointer; 166. a second pointer; 167. a first dial plate; 168. a second dial plate; 17. a fixed seat; 18. a self-locking mechanism; 181. a spring connecting block; 182. a rotating spring; 183. a spring fixing shaft; 184. a steel wire limiting hole; 185. self-locking shifting piece.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions and technical features between various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not be within the protection scope of the present invention.
Example 1
Referring to fig. 1-2, an embodiment of the present invention is shown: comprises an air pipe 2, a communicating piece 3, a first supporting piece 4, a sealing ring 5, a moving mechanism 6, a second supporting piece 7 and a steel wire 9;
The working principle and the beneficial effects of the technical scheme are as follows: when the device is used, the device is placed into a pipeline 1, at the moment, a moving mechanism 6 is attached to the pipeline 1, the device is guaranteed to be located in the center of the pipeline 1, if the moving mechanism 6 breaks down, the device can be retracted through a steel wire 9 and inflated through an air pipe 2, air enters a communicating piece 3, then the communicating piece 3 inputs air into a sealing ring 5 preferentially, the sealing ring 5 is inflated and expanded to be attached to the inner wall of the pipeline 1, then the communicating piece 3 inflates a cavity formed between the sealing ring 5 and the inner wall of the pipeline 1, after a period of time, cavity pressure is detected, when the cavity pressure keeps rising, the situation that a leakage point 8 does not exist in the pipeline 1 is indicated, otherwise, the situation that the leakage point 8 exists in the pipeline 1 is indicated when the cavity pressure reaches a certain degree and does not change, the device does not need to judge the leakage point through manual observation, the efficiency is high.
Example 2
On the basis of the above embodiment 1, referring to fig. 3-4, the communicating member 3 includes a plurality of first outlet holes 31, a plurality of second outlet holes 32 and a one-way communicating vessel 33;
The working principle and the beneficial effects of the technical scheme are as follows: during the use, the air gets into connecting piece 3 by trachea 2, and second venthole 32 through connecting piece 3 upper and lower places fills the air into sealing ring 5, makes sealing ring 5 aerify the inflation, and until hugging closely with pipeline 1, later, the air that gets into from trachea 2 is compressed for one-way linker 33 is opened, and the air releases from connecting piece 3, gets into the cavity that forms between sealing ring 5 and the pipeline 1 inner wall, and the setting of connecting piece 3 makes the device's efficiency can improve.
Example 3
On the basis of the above embodiment 2, referring to fig. 4 to 5, the one-way communicator 33 includes the air lock 331, the limit spring 332, and the first limit stopper 333;
The working principle and the beneficial effects of the technical scheme are as follows: when not using, the limiting spring 332 in the cylindrical position sleeved on the air plug 331 bears a certain pressure, due to the action of a limiting stopper 333, the air plug 331 is tightly attached to the inner wall of the communicating part 3, so that the first air outlet hole 31 is in a closed state, when using, the communicating part 3 inflates the sealing ring 5, so that when the air in the sealing ring 5 reaches a certain pressure, the limiting spring 332 is compressed, the air plug 331 is separated from the inner wall of the communicating part 3, the first air outlet hole 31 is opened, a cavity formed between the sealing ring 5 and the inner wall of the pipeline 1 is inflated, the arrangement of the device enables the inflation to have a sequence, the air cannot escape from the space between the sealing ring 5 and the inner wall of the pipeline 1, the efficiency of the device is improved, the energy consumption of equipment is reduced, and the device is energy-.
Example 4
On the basis of the above embodiment 1, referring to fig. 6, the surface of the second supporting member 7 is provided with the fixing ring 10, and the steel wire 9 is connected to the second supporting member 7 through the fixing ring 10.
The working principle and the beneficial effects of the technical scheme are as follows: the presence of the wire 9 connected to the fixing ring 10 and the fixing ring 10 fixed to the second support 7, the fixing ring 10 and the wire 9, avoids the possibility of the device becoming jammed in the duct 1 by accident, and at the same time increases the safety of the device.
Example 5
On the basis of the above embodiment 1, referring to fig. 6, the end of the air tube 2 is fixed with an air tube connector 11, and the air tube 2 is rotatably connected with the communicating member 3 through the air tube connector 11.
The working principle and the beneficial effects of the technical scheme are as follows: the air pipe 2 is rotatably connected with the communicating piece 3 through the air pipe connector 11 and is of a detachable structure, the structure avoids the damage of the whole device caused by the damage of the air pipe 2, only the air pipe 2 is replaced, and the practicability of the invention is improved due to the arrangement of the structure.
Example 6
On the basis of the above embodiment 1, referring to fig. 7, the movement mechanism 6 includes: the motion mechanism comprises a motion mechanism shell 60, a sliding groove 61, a sliding block 62, a linkage 63, a driving special-shaped gear 64, a driven special-shaped gear 65, a supporting spring 66, a motion foot 67, a limiting shaft 68, a driving shaft 69 and a first motor 691;
the motion mechanism shell 60 is fixed on the first support member 4 or the second support member 7, the first motor 691 is fixed on the outer wall of the motion mechanism shell 60, the output end of the first motor 691 is connected with the driving shaft 69, the driving special-shaped gear 64 and the driven special-shaped gear 65 are both hinged on the inner surface of the motion mechanism shell 60, the driving shaft 69 is fixed with the driving special-shaped gear 64, the driving special-shaped gear 64 is meshed with the driven special-shaped gear 65 through a toothed end, the other end of the driving special-shaped gear 64 is hinged on the middle position of the linkage member 63, one end of the linkage member 63 is hinged with the sliding block 62, the sliding block 62 is located in the sliding groove 61, the limit shaft 68 at the other end of the linkage member 63 is fixed, the support spring 66 is sleeved on the limit shaft 68 and is in contact with the motion.
The motion foot 67 may also be a motion wheel.
The working principle and the beneficial effects of the technical scheme are as follows: when the device is used, the device enters the pipeline 1, the motion foot 67 is contacted with the inner surface of the pipeline 1, when the device advances, the first motor 691 rotates to drive the driving special-shaped gear 64 to rotate, the driven special-shaped gear 65 meshed with the driving special-shaped gear 64 also starts to rotate, the driving special-shaped gear 64 and the driven special-shaped gear 65 are hinged on the inner surface of the motion mechanism shell 60, the toothless end of the driving special-shaped gear 64 and the driven special-shaped gear 65 drives the linkage part 63 to move, one end of the linkage part 63 is hinged with the sliding block 62, and the sliding block 62 slides in the sliding groove 61, so that one end of the linkage part 63 connected with the motion foot 67 moves along the inner wall of the pipeline 1, at the moment, the support spring 66 is pressed to have friction with the inner wall of the pipeline 1, so that the motion foot 67 and the pipeline 1 are relatively static, thereby the device integrally advances, and then the, the invention can stably advance in the pipeline 1, and the arrangement of the mechanism increases the stability and the practicability of the movement mechanism 6.
Example 7
On the basis of the above embodiment 6, referring to fig. 7, the sports foot 67 is made of rubber and has anti-slip patterns on the surface.
The working principle and the beneficial effects of the technical scheme are as follows: the moving foot 67 is made of rubber, patterns are arranged on the surface of the moving foot 67, friction between the moving foot 67 and the pipeline 1 is increased, the device is more stable in the advancing process, and the practicability of the device is improved.
Example 8
On the basis of the above embodiment 1, referring to fig. 8 to 14, a travel distance calculating means is further included, the travel distance calculating means being connected to the other end of the wire 9, the travel distance calculating means including: the device comprises a base motor 12, a second motor 13, an output shaft 14, a line concentration mechanism 15, a number indicating mechanism 16, a fixed seat 17 and a self-locking mechanism 18;
the second motor 13 is fixed on the base motor 12, one end of the output shaft 14 is connected with the output end of the second motor 13, the other end of the output shaft 14 is connected with the line concentration mechanism 15, the number indicating mechanism 16 is connected with the line concentration mechanism 15, the line concentration mechanism 15 and the number indicating mechanism 16 are both fixed on the fixed seat 17, an opening is formed in the upper surface of the line concentration mechanism 15, and the self-locking mechanism 18 is located in the opening in the upper surface of the line concentration mechanism 15;
the wire collecting mechanism 15 comprises a second limit stop 151, a fluted disc 152, a wire collecting mechanism shell 153 and a wire collecting disc 154, the other end of the output shaft 14 penetrates through the wire collecting mechanism shell 153, the other end, close to the output shaft 14, of the output shaft 14 is connected with the fluted disc 152, the wire collecting disc 154 is fixed on the fluted disc 152, two fluted discs 152 are arranged and are symmetrically distributed relative to the wire collecting disc 154, and the second limit stop 151 is fixed on the inner surface of the wire collecting mechanism shell 153;
the self-locking mechanism 18 comprises a spring connecting block 181, a rotating spring 182, a spring fixing shaft 183, a steel wire limiting hole 184 and a self-locking shifting piece 185, the self-locking shifting piece 185 is hinged to the inner surface of the line concentration mechanism shell 153 through the spring fixing shaft 183, the spring connecting block 181 is fixed on the self-locking shifting piece 185, the rotating spring 182 is sleeved on the spring fixing shaft 183, one end of the rotating spring 182 is fixed on the spring connecting block 181, the other end of the rotating spring 182 is fixed on the spring fixing shaft 183, and the steel wire limiting hole 184 is positioned on the self-locking shifting piece;
the number indicating mechanism 16 comprises a first gear 161, a second gear 162, a third gear 163, a fourth gear 164, a first pointer 165, a second pointer 166, a first dial 167 and a second dial 168, the other end of the output shaft 14 passes through the line concentrating mechanism 15 and is connected with the first gear 161, the first gear 161 is meshed with the second gear 162, the third gear 163 is fixed on the second gear 162, the fourth gear 164 is meshed with the third gear 163, the first pointer 165 is fixed on the first gear 161, the second pointer 166 is fixed on the fourth gear 164, the first dial 167 is located between the first gear 161 and the first pointer 165, and the second dial 168 is located between the fourth gear 164 and the second pointer 166.
The working principle and the beneficial effects of the technical scheme are as follows: in the process of detecting the leak point 8, the steel wire 11 is drawn out from the wire collecting disc 154, the steel wire 9 passes through the steel wire limiting hole 184, the self-locking poking sheet 185 is pressed downwards, the self-locking poking sheet 185 is separated from the fluted disc 152, when the device is detected when the device is advanced to a certain position, the steel wire 9 is not screwed out, the self-locking poking sheet 185 is clamped with the fluted disc 152 under the action of a rotating spring to form self-locking, in the screwing-out process of the steel wire 9, the rotation of the wire collecting disc 154 drives the first gear 161 to rotate, so that the first pointer 165 also rotates along with the rotation of the wire collecting disc to indicate, the first gear 161, the second gear 162, the third gear 163 and the fourth gear 164 are sequentially meshed to decelerate, the fourth gear 164 is fixed with the second pointer 166, so that the indication range of the indication mechanism 16 is enlarged, and then the specific distance from the leak point 8 to the opening of the pipeline 1 can be obtained, and after a specific position is, the second motor 13 drives the wire collecting disc 154 to rotate, the steel wires 9 are rapidly recovered, and the leakage point detection is completed.
Example 9
On the basis of the above embodiment 1, further include a steel wire state detection device, the steel wire state detection device includes:
a speed sensor provided on the second support 7 for detecting a moving speed of the second support 7;
the tension sensor is arranged at the joint of the steel wire 9 and the second support member 7 and used for detecting the tension of the steel wire 9 on the second support member 7;
the timer is used for recording the movement time of the detection positioning device of the pressure pipeline leakage point;
the counter is used for recording the using times of the detection positioning device of the pressure pipeline leakage point;
the alarm is positioned outside the pressure pipeline;
the controller, the controller respectively with speedtransmitter, force sensor, counter, alarm electric connection, the controller is based on speedtransmitter, force sensor, counter control alarm work includes:
step 1: the controller obtains the speed of the steel wire based on the speed sensor and a formula (1):
V＝V0ρ (1)
wherein V is the speed of the steel wire (specifically the speed of the far end of the steel wire, one end outside the pipeline), V0The speed of the second supporting piece 7 detected by the speed sensor, namely the speed of the first section of the steel wire, rho is a characteristic parameter of the steel wire with speed change caused by external force, which means that the relative speed of the first end and the last end of the steel wire changes due to the deformation of the steel wire under the action of the external force, and the rho is related to the material of the steel wire and takes a value of 1.0-1.05;
step 2: the controller calculates a steel wire state index based on the tension sensor, the timer, the step 1 and the formula (2):
wherein A is a steel wire state index, NαThe number of the used times of the detection positioning device of the pressure pipeline leakage point is determined by the rope groove coefficient and the shape of the rope groove, the value is 0.9, the value B is recorded by a counter, the K is the safety coefficient of the detection positioning device of the pressure pipeline leakage point, the value theta is larger than 1, the value theta is the diameter of the steel wire, the M is the weight of the detection positioning device of the pressure pipeline leakage point, and the F isfThe friction force between the movement mechanism 6 and the inner wall of the pipeline 1 is obtained, F is the tension of the steel wire 9 on the second supporting piece 7 detected by the tension sensor, t is the movement time of the detection positioning device of the pressure pipeline leakage point recorded by the timer when the B +1 th detection is carried out, e is a natural constant, and the value is 2.72, N is obtainedβThe lubricating coefficient of the steel wire is 1.0-1.5, and L is the length of the steel wire;
and when the steel wire state index exceeds a preset reference value range, the controller controls the alarm to give an alarm.
The working principle and the beneficial effects of the technical scheme are as follows: a speed sensor arranged on the second supporting piece 7 for monitoring the speed of the second supporting piece 7, and calculating the speed of the steel wire according to the characteristic parameter of the steel wire which changes speed due to external force and the formula (1), wherein the speed of the steel wire is one of the factors influencing the state index of the steel wire, the higher the speed of the steel wire is, the higher the state index of the steel wire is, the higher the risk of the steel wire sending fault is, and then calculating the state index of the steel wire according to the calculation result of the formula (1) and the formula (2), wherein the rope groove coefficient is determined by the shape of the rope groove, the value is 0.9, the using times is recorded by the controller, the safety coefficient value of the device is more than 1, the lubricating coefficient of the steel wire is 1.0-1.5, after the result is calculated, the controller compares the actual state index of the steel wire with the preset steel wire state index stored in the controller, and when the actual state index of the, the controller can control the alarm to send out the suggestion of reporting to the police to remind field worker to overhaul steel wire 9, change, send out the warning through setting up controller control alarm, can in time remind the staff to overhaul equipment according to the state index of steel wire 9, monitored the operating condition of steel wire 11, can make the staff in time discover the work of equipment unusual, improved the work efficiency of equipment and the intelligent degree of equipment.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. The utility model provides a detection positioner of pipeline under pressure leak source which characterized in that: including trachea (2), connecting piece (3), first support piece (4), sealing ring (5), motion (6), second support piece (7) and steel wire (9), connecting piece (3) both ends are fixed in respectively in first support piece (4) and second support piece (7), sealing ring (5) encircle connecting piece (3), and laminate with first support piece (4), second support piece (7) respectively, be fixed with motion (6) around first support piece (4), second support piece (7), and motion (6) and pipeline under pressure (1) laminate, trachea (2) pass second support piece (7) and are connected with connecting piece (3), steel wire (9) are connected in second support piece (7).
2. The pressure pipeline leak detection and positioning device of claim 1, wherein: the connecting piece (3) comprises a plurality of first air outlet holes (31), a plurality of second air outlet holes (32) and a one-way connector (33), the first air outlet holes (31) and the second air outlet holes (32) are all arranged on the surface of the connecting piece (3), the second air outlet holes (32) are arranged on two sides of the connecting piece (3) and are distributed in a surrounding mode, and are communicated with the sealing ring (5), the first air outlet holes (31) are arranged in the middle of the connecting piece (3) and distributed in a surrounding mode.
3. The pressure pipeline leak detection and positioning device according to claim 2, wherein: one-way linker (33) includes air lock (331), limit spring (332) and first limit stop (333), first limit stop (333) are fixed in connecting piece (3) inner wall, air lock (331) front end is the toper, and the middle part is cylindrically, and the rear end is the circular slab, limit spring (332) cup joints the cylindrical position on air lock (331), and fixed connection is between the circular slab of first limit stop (333) and air lock (331), the toper position and the closely laminating of connecting piece (3) inner wall of air lock (331).
4. The pressure pipeline leak detection and positioning device of claim 1, wherein: the surface of the second support (7) is provided with a fixing ring (10), and the steel wire (9) is connected to the second support (7) through the fixing ring (10).
5. The pressure pipeline leak detection and positioning device of claim 1, wherein: trachea (2) end is fixed with trachea connector (11), trachea (2) are through trachea connector (11) and intercommunication piece (3) swivelling joint.
6. The pressure pipeline leak detection and positioning device of claim 1, wherein: the movement mechanism (6) comprises: the device comprises a motion mechanism shell (60), a sliding groove (61), a sliding block (62), a linkage piece (63), a driving special-shaped gear (64), a driven special-shaped gear (65), a supporting spring (66), a motion foot (67), a limiting shaft (68), a driving shaft (69) and a first motor (691);
the movement mechanism shell (60) is fixed on the first support piece (4) or the second support piece (7), the first motor (691) is fixed on the outer wall of the movement mechanism shell (60), the output end of the first motor (691) is connected with the driving shaft (69), the driving special-shaped gear (64) and the driven special-shaped gear (65) are both hinged on the inner surface of the movement mechanism shell (60), the driving shaft (69) is fixed with the driving special-shaped gear (64), the tooth end of the driving special-shaped gear (64) is meshed with the driven special-shaped gear (65), the other end of the driving special-shaped gear (64) is hinged at the middle position of the linkage piece (63), one end of the linkage piece (63) is hinged with the sliding block (62), the sliding block (62) is positioned in the sliding groove (61), the limiting shaft (68) at the other end of the linkage piece (63) is fixed, the support spring (66) is sleeved on the, and is contacted with a motion foot (67), and the motion foot (67) is connected with a limit shaft (68).
7. The pressure pipeline leak detection and location device of claim 6, wherein: the sport foot (67) is made of rubber, and anti-skid patterns exist on the surface.
8. The pressure pipeline leak detection and positioning device of claim 1, wherein: further comprising a travel distance calculation device connected to the other end of the steel wire (9), the travel distance calculation device comprising: the wire collecting device comprises a base motor (12), a second motor (13), an output shaft (14), a wire collecting mechanism (15), a number indicating mechanism (16), a fixed seat (17) and a self-locking mechanism (18);
the second motor (13) is fixed on the base motor (12), one end of the output shaft (14) is connected with the output end of the second motor (13), the other end of the output shaft (14) is connected with the wire collecting mechanism (15), the number indicating mechanism (16) is connected with the wire collecting mechanism (15), the wire collecting mechanism (15) and the number indicating mechanism (16) are both fixed on the fixed seat (17), an opening is formed in the upper surface of the wire collecting mechanism (15), and the self-locking mechanism (18) is located in the opening in the upper surface of the wire collecting mechanism (15);
the wire collecting mechanism (15) comprises a second limit stop (151), a gear disc (152), a wire collecting mechanism shell (153) and wire collecting discs (154), the other end of the output shaft (14) penetrates through the wire collecting mechanism shell (153), the other end, close to the output shaft (14), of the output shaft (14) is connected with the gear disc (152), the wire collecting discs (154) are fixed on the gear disc (152), the two gear discs (152) are symmetrically distributed on the wire collecting discs (154), and the second limit stop (151) is fixed on the inner surface of the wire collecting mechanism shell (153);
the self-locking mechanism (18) comprises a spring connecting block (181), a rotating spring (182), a spring fixing shaft (183), a steel wire limiting hole (184) and a self-locking shifting sheet (185), the self-locking shifting sheet (185) is hinged to the inner surface of the line concentration mechanism shell (153) through the spring fixing shaft (183), the spring connecting block (181) is fixed on the self-locking shifting sheet (185), the rotating spring (182) is sleeved on the spring fixing shaft (183), one end of the rotating spring (182) is fixed on the spring connecting block (181), the other end of the rotating spring (182) is fixed on the spring fixing shaft (183), and the steel wire limiting hole (184) is located on the self-locking shifting sheet (185;
the number indicating mechanism (16) comprises a first gear (161), a second gear (162), a third gear (163), a fourth gear (164), a first pointer (165), a second pointer (166), a first dial (167) and a second dial (168), the other end of the output shaft (14) passes through the line concentration mechanism (15) and is connected with a first gear (161), the first gear (161) is meshed with the second gear (162), the third gear (163) is fixed on the second gear (162), the fourth gear (164) is meshed with the third gear (163), the first pointer (165) is fixed on the first gear (161), the second pointer (166) is fixed on the fourth gear (164), the first dial (167) is positioned between the first gear (161) and the first pointer (165), the second dial (168) is located between the fourth gear (164) and the second pointer (166).
9. The pressure pipeline leak detection and positioning device of claim 1, wherein: still include steel wire state detection device, steel wire state detection device includes:
a speed sensor provided on the second support (7) for detecting a moving speed of the second support (7);
the tension sensor is arranged at the joint of the steel wire (9) and the second support piece (7) and used for detecting the tension of the steel wire (9) on the second support piece (7);
the timer is used for recording the movement time of the detection positioning device of the pressure pipeline leakage point;
the counter is used for recording the using times of the detection positioning device of the pressure pipeline leakage point;
the alarm is positioned outside the pressure pipeline;
the controller, the controller respectively with speedtransmitter, force sensor, counter, alarm electric connection, the controller is based on speedtransmitter, force sensor, counter control alarm work includes:
step 1: the controller obtains the speed of the steel wire based on the speed sensor and a formula (1):
V＝V0ρ (1)
wherein V is the speed of the wire, V0The speed of the second supporting piece (7) detected by the speed sensor is rho, which is a characteristic parameter of the steel wire with speed change caused by external force;
step 2: the controller calculates a steel wire state index based on the tension sensor, the timer, the step 1 and the formula (2):
wherein A is a steel wire state index, NαFor the grooving coefficient, B is the counter record the number of times that the detection positioner of pipeline under pressure leak source has been used, K is the factor of safety of the detection positioner of pipeline under pressure leak source, theta is the steel wire diameter, M is the detection positioner's of pipeline under pressure leak source weight, FfThe friction force between the movement mechanism (6) and the inner wall of the pipeline (1) is obtained, F is the tension of the steel wire (9) on the second supporting piece (7) detected by the tension sensor, t is the movement time of the detection positioning device of the pressure pipeline leakage point recorded by the timer during the B +1 th detection, e is a natural constant, and the value of N is 2.72, and N is obtainedβIs the steel wire lubrication coefficient, L is the steel wire length;
and when the steel wire state index exceeds a preset reference value range, the controller controls the alarm to give an alarm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110144012.1A CN112985714A (en) | 2021-02-02 | 2021-02-02 | Detection positioning device for pressure pipeline leakage point |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110144012.1A CN112985714A (en) | 2021-02-02 | 2021-02-02 | Detection positioning device for pressure pipeline leakage point |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464852A (en) * | 2021-07-26 | 2021-10-01 | 广东电网有限责任公司 | Automatic positioning equipment for water leakage point of pipeline |
| CN113970414A (en) * | 2021-10-27 | 2022-01-25 | 上海派普诺管道检测科技发展有限公司 | Underground pipeline leakage point detection device and detection method thereof |
| CN114029244A (en) * | 2021-12-08 | 2022-02-11 | 淄博市特种设备检验研究院 | Continuous detection device for manufacturing pressure pipeline element |
-
2021
- 2021-02-02 CN CN202110144012.1A patent/CN112985714A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464852A (en) * | 2021-07-26 | 2021-10-01 | 广东电网有限责任公司 | Automatic positioning equipment for water leakage point of pipeline |
| CN113970414A (en) * | 2021-10-27 | 2022-01-25 | 上海派普诺管道检测科技发展有限公司 | Underground pipeline leakage point detection device and detection method thereof |
| CN114029244A (en) * | 2021-12-08 | 2022-02-11 | 淄博市特种设备检验研究院 | Continuous detection device for manufacturing pressure pipeline element |
| CN114029244B (en) * | 2021-12-08 | 2024-01-19 | 辽宁鸿鑫节能科技有限公司 | Continuous detection device for manufacturing pressure pipeline element |
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