CN114370541B - Offshore submersible recovery pipeline capable of preventing pump from being internally blocked and adaptively adjusting pipe diameter - Google Patents
Offshore submersible recovery pipeline capable of preventing pump from being internally blocked and adaptively adjusting pipe diameter Download PDFInfo
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- CN114370541B CN114370541B CN202210283697.2A CN202210283697A CN114370541B CN 114370541 B CN114370541 B CN 114370541B CN 202210283697 A CN202210283697 A CN 202210283697A CN 114370541 B CN114370541 B CN 114370541B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/10—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations
- F16L27/1012—Flanged joints
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/24—Preventing accumulation of dirt or other matter in the pipes, e.g. by traps, by strainers
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F17/00—Methods or apparatus for determining the capacity of containers or cavities, or the volume of solid bodies
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
- G01V8/20—Detecting, e.g. by using light barriers using multiple transmitters or receivers
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/204—Keeping clear the surface of open water from oil spills
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- Automation & Control Theory (AREA)
- Fluid Mechanics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention belongs to the technical field of marine oil gas, and relates to a marine submerged oil recovery pipeline. A marine submersible recovery pipeline capable of preventing the pump from being blocked and adaptively adjusting the pipe diameter comprises an adjustable telescopic pipeline, a monitoring pipeline and a central controller; the monitoring pipeline is arranged at the rear end of the adjustable telescopic pipeline; the adjustable telescopic pipeline is connected with an adjusting mechanism; a monitoring device is arranged on the monitoring pipeline; the adjusting mechanism and the monitoring device are connected with the central controller; and the central controller controls the action of the adjusting mechanism according to the monitoring result of the monitoring device, so as to adjust the pipe diameter of the adjustable telescopic pipeline. The marine submersible recovery pipeline capable of preventing the pump from being blocked and adaptively adjusting the pipe diameter can adaptively adjust the pipe diameter of the pipeline according to the monitored volume of the solid submersible clot in the pipeline, so that the volume of the submersible clot entering the pump is adjusted, the impeller in the pump is prevented from being blocked, and the pumping efficiency of the recovery pump is improved.
Description
Technical Field
The invention belongs to the technical field of marine oil gas, and particularly relates to a marine submersible recovery pipeline.
Background
With the development and utilization of marine oil resources, submergence oil disasters caused by marine oil exploitation and transportation accidents happen occasionally, submergence oil on the sea surface directly harms marine environments and marine wild organisms, the damage period is long, if the damage period is not timely treated, the continuous development of marine fishery and aquaculture in nearby sea areas is seriously influenced, even the development of tourism in coastal cities is also endangered, and the marine ecological environment and economy in the coastal cities are greatly influenced. Therefore, the emergency treatment situation of the marine oil submergence accident is very severe. At present, the problems of long reaction time, weak emergency treatment capacity and the like exist in marine oil submergence accidents, and pumping equipment consisting of a recovery pipeline and a recovery pump is mostly adopted to rapidly recover oil submergence in a large area at the present stage.
Adopt the pump to pump when sinking oily recovery process of diving, the piece is condensed into easily to the oil of sinking, oil cake is too big in the recovery pipeline, can lead to the oil cake that gets into in the recovery pump in the short time too much, cause and block up in the recovery pump, the impeller is stifled changeed, and then cause the interior impeller damage of pump, influence pump efficiency and pump process of pumping, it designs to the pump suction recovery pipeline to be necessary, the volume of the inside solid-state oil cake of reasonable control pipeline, avoid in the too much oil cake entering pump of unit interval, realize that continuous pump pumps and pump and inhale and retrieve.
Disclosure of Invention
The invention provides a marine submersible recovery pipeline capable of preventing blockage in a pump and self-adaptively adjusting the pipe diameter of a pipeline at the front end of the pump, so that a large amount of oil blocks can be prevented from entering the pump in a short time, and blockage in the pump is prevented.
The technical scheme adopted by the invention for solving the technical problems is as follows: a marine submersible recovery pipeline capable of preventing the pump from being blocked and adaptively adjusting the pipe diameter comprises an adjustable telescopic pipeline, a monitoring pipeline and a central controller; the monitoring pipeline is arranged at the rear end of the adjustable telescopic pipeline; wherein the adjustable telescopic pipeline is connected with an adjusting mechanism; a monitoring device is arranged on the monitoring pipeline; the adjusting mechanism and the monitoring device are connected with the central controller; and the central controller controls the action of the adjusting mechanism according to the monitoring result of the monitoring device, so as to adjust the pipe diameter of the adjustable telescopic pipeline.
As a preferred mode of the present invention, the adjustable telescopic pipe comprises an outer supporting pipe and an inner telescopic pipe; the external supporting pipe is a reducer pipe; the pipe diameter of the middle part and the pipe diameters of the two ends meet the requirements of (1.1-1.3) to 1; the inner telescopic tube is arranged at the middle part of the outer supporting tube.
Furthermore, a telescopic spring is arranged between the external supporting tube and the internal telescopic tube.
Furthermore, the adjusting mechanism is arranged along the circumference of the adjustable telescopic pipeline and comprises a servo system, a transmission device and a connecting shaft; one end of the connecting shaft is connected with the inner telescopic pipe, and the other end of the connecting shaft is connected with a servo system through a transmission device.
Furthermore, the monitoring pipeline is a transparent pipe, and the monitoring device comprises a volume monitoring electronic cabin arranged on the outer wall of the transparent pipe; at least one group of monitoring sensors are arranged at the position of the volume monitoring electronic cabin along the circumferential direction of the transparent pipe; the monitoring sensor comprises a plurality of grating transmitters arranged at equal intervals and a same number of grating receivers.
Furthermore, the monitoring device comprises two groups of monitoring sensors which are arranged along the circumference of the transparent pipe; in the two groups of monitoring sensors, the boundary lines of the grating transmitter and the grating receiver are perpendicular to each other.
Furthermore, a driving amplification circuit and a signal acquisition processing circuit are arranged in the volume monitoring electronic cabin; the driving amplification circuit is connected with the grating transmitter, and the signal acquisition processing circuit is connected with the grating receiver; the volume monitoring electronic cabin is connected with the central controller.
Furthermore, the adjustable telescopic pipeline gathering device further comprises a gathering device arranged at the front end of the adjustable telescopic pipeline, and the gathering device is provided with a horn-shaped gathering port.
The marine submersible recovery pipeline capable of preventing the pump from being internally blocked and adaptively adjusting the pipe diameter has the following beneficial effects:
the self-adaptive control method has the advantages that the self-adaptive adjustment can be carried out on the pipe diameter of the recovery pipeline at the front end of the recovery pump according to the monitored volume of the solid submersible oil clot in the pipeline, the quantity and the volume of oil blocks entering the recovery pump are controlled, and the phenomenon that a large number of oil blocks enter the pump in a short time to cause impeller stalling in the pump is avoided. When the volume of the solid submersible oil clot in the pipeline is smaller, the pipe diameter of the pipeline can be adjusted to be properly enlarged, and the pumping recovery efficiency of the recovery pump is improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a marine submersible recovery pipeline with adaptive pipe diameter adjustment to prevent blockage in the pump according to an embodiment of the invention;
FIG. 2 is a schematic view of the gathering device;
FIG. 3 is a schematic view of the structure of the adjustable telescopic pipe;
FIG. 4 is a schematic view of the inner telescopic tube;
FIG. 5 is a partial detail view of the inner telescoping tube;
FIG. 6 is a schematic view of the outer support tube;
FIG. 7 is a partial detail view of the outer support tube;
FIG. 8 is a schematic view of a monitoring conduit;
FIG. 9 is a schematic view of a first set of monitoring sensors distributed;
FIG. 10 is a schematic view of a second set of monitoring sensors distributed;
FIG. 11 is a schematic structural view of a connecting shaft;
FIG. 12 is a schematic view of a slider;
FIG. 13 is a control schematic diagram of adaptive adjustment of pipe diameters in an embodiment of the present invention;
in the figure: 1. a sliding bearing; 2. a gathering device; 3. a central controller; 4. a lead screw; 5. a servo motor; 6. a slider; 7. a volume monitoring electronic compartment; 8. a first set of monitoring sensors; 9. a second set of monitoring sensors; 10. a connecting shaft; 11. an inner extension tube; 12. an outer support tube; 13. monitoring the pipeline; 14. a tension spring; 15. submerging oil clots;
2-1, a recovery pipe; 2-2, a first connecting flange; 2-3, a horn-shaped gathering port;
6-1 and a fifth connecting flange; 6-2, a main body; 6-3, threaded hole
10-1, a third connecting flange; 10-2, a shaft; 10-3, a fourth connecting flange;
11-1, a flange; 11-2, a first bolt hole; 11-3, a spring fixing seat; 11-4, connecting shaft fixing base;
12-1, a front flange; 12-2, a second bolt hole; 12-3, mounting grooves; 12-4, wall surface structure; 12-5, through holes; 12-6, a rear flange; 12-7, a rear end pipe; 12-8, a middle tube; 12-9, a front end pipe;
13-1, a second connecting flange; 13-2 and a grating mounting groove.
Detailed Description
In order to facilitate an understanding of the invention, the invention is described in more detail below with reference to the accompanying drawings and specific examples. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
The marine submersible recovery pipeline capable of preventing blockage in a pump and self-adaptively adjusting the pipe diameter provided in the embodiment has the structure shown in fig. 1, and mainly comprises: gather together device 2, adjustable flexible pipeline, central controller 3, lead screw 4, servo motor 5, slider 6, volume monitoring electronic cabin 7, first group's monitoring sensor 8, second group's monitoring sensor 9, connecting axle 10, monitoring pipeline 13 and expanding spring 14 etc..
Wherein, the gathering device 2, the adjustable telescopic pipeline and the monitoring pipeline 13 are communicated in sequence. The volume monitoring electronic cabin 7 is installed on the outer wall of the monitoring pipeline 13, and two groups of monitoring sensors, namely a first group of monitoring sensors 8 and a second group of monitoring sensors 9, are arranged on the outer wall of the monitoring pipeline 13 along the circumferential direction. The servo motor 5 is connected with the lead screw 4, the slide block 6 is installed on the lead screw 4, one end of the connecting shaft 10 is connected with the slide block 6, and the other end of the connecting shaft is connected with the adjustable telescopic pipeline. The servo motor 5 drives the sliding block on the screw rod 4 to move, and then the inner diameter of the adjustable telescopic pipeline is adjusted through the connecting shaft 10, so that the effect of adjusting the pipe diameter is achieved.
In this embodiment, four sets of servo driving devices are arranged at equal intervals along the circumference of the adjustable telescopic pipeline, and the four servo motors synchronously act to complete the adjustment of the pipe diameter of the adjustable telescopic pipeline.
As shown in figure 2, the gathering device 2 is made of stainless steel and comprises a trumpet-shaped gathering port 2-3 and a recovery pipe 2-1. The horn-shaped gathering port 2-3 gathers the sinking oil clots, so that large-area recovery of sinking oil is facilitated. The recovery pipe 2-1 is connected with the front end of the adjustable telescopic pipeline through a first connecting flange 2-2, and the submerged oil entering the horn-shaped gathering port 2-3 is conveyed to the adjustable telescopic pipeline.
As shown in fig. 1 and 3, the adjustable telescopic pipe is mainly composed of an outer support pipe 12, an inner telescopic pipe 11, and a telescopic spring 14 installed between the outer support pipe 12 and the inner telescopic pipe 11.
As shown in FIGS. 4 and 5, the inner telescopic tube 11 is made of rubber, has a certain toughness, and can move along a radial direction, flanges 11-1 are provided at both ends of the inner telescopic tube 11, and first bolt holes 11-2 are provided on the flanges 11-1. A connecting shaft fixing base 11-4 is arranged in the middle of the outer wall of the inner telescopic pipe 11, a plurality of spring fixing bases 11-3 are uniformly arranged on the outer wall of the inner telescopic pipe 11, wherein the connecting shaft fixing base 11-4 is connected with a connecting shaft 10 which penetrates through a through hole 12-5 in the outer supporting pipe 12 through a flange.
As shown in fig. 6 and 7, the outer support tube 12 is a reducer tube and is formed by welding three sections of pipes with different pipe diameters, wherein the pipe diameters of the front end pipe 12-9 and the rear end pipe 12-7 are the same and are both smaller than the pipe diameter of the middle pipe 12-8. The pipe diameter d1 of the front end pipe 12-9 and the rear end pipe 12-7 and the pipe diameter d2 of the middle pipe 12-8 meet the ratio of 1 to (1.1-1.3), so that the flow of the inlet of the submersible oil recovery pump can be effectively controlled, and the use of the submersible oil recovery pump is not influenced. The inner telescopic pipe 11 has the same pipe diameter as the front end pipe 12-9 and the rear end pipe 12-7 in a natural state.
The inlet end of the front end pipe 12-9 is provided with a front flange 12-1, and the front flange 12-1 is connected with a first connecting flange 2-2 on the gathering device 2. The outlet end of the rear end pipe 12-7 is provided with a rear flange 12-6, and the rear flange 12-6 is connected with a second connecting flange 13-1 on the monitoring pipeline 13.
The inner wall of the middle pipe 12-8 is provided with a mounting groove 12-3, and a second bolt hole 12-2 is arranged at the position of the mounting groove 12-3. The middle position of the middle pipe 12-8 is provided with a through hole 12-5, the through hole 12-5 is a stepped hole, a sliding bearing support is arranged in the stepped hole and used for supporting the sliding bearing 1, and the sliding bearing 1 is convenient for a connecting shaft 10 to pass through. Meanwhile, the inner wall of the middle pipe 12-8 is also provided with a plurality of wall structures 12-4, and the wall structures 12-4 are matched with the spring fixing seats 11-3 of the inner extension pipe 11 to fix two ends of the extension spring 14.
The mounting groove 12-3 is matched with a flange 11-1 in the inner telescopic tube 11, a second bolt hole 12-2 of the outer support tube 12 is matched with a first bolt hole 11-2 in the inner telescopic tube 11, and the inner telescopic tube 11 and the outer support tube 12 are fixed by bolts.
As shown in fig. 8, the monitoring pipeline 13 is a transparent pipe, so as to facilitate subsequent volume monitoring in the recovery process, and the inner wall of the pipe is coated with an anti-adhesion transparent coating to prevent the submersible oil from adhering to the pipe wall to affect the volume calculation. Install volume monitoring electronic cabin 7 on the outer wall of monitoring pipeline 13, at volume monitoring electronic cabin 7 position department, along monitoring pipeline 13 outer wall circumference distribution two sets of monitoring sensor, be first group monitoring sensor 8 and second group monitoring sensor 9 respectively.
And a driving amplification circuit and a signal acquisition processing circuit are arranged in the volume monitoring electronic cabin 7. The volume monitoring electronic cabin 7 is connected with the central controller 3 through a transmission cable. The driving amplification circuit is used for driving the grating transmitter, and the signal acquisition processing circuit is used for acquiring the optical signal of the grating receiver and converting the optical signal into a digital signal.
As shown in fig. 9, 12-18 grating mounting grooves 13-2 are distributed along the outer wall of the monitoring pipe 13, and these grating mounting grooves are arranged at equal intervals on the circumference of the outer wall of the monitoring pipe 13, taking c as a boundary, wherein a half of the grating mounting grooves on the left side are fixed with grating transmitters, as shown in part a, and a half of the grating mounting grooves on the right side are fixed with grating receivers, as shown in part b, and the grating transmitters and the grating receivers in the arrangement form constitute the first group of monitoring sensors 8. A grating transmitter and a grating receiver form a grating sensor for detecting optical signals. The grating transmitter is connected with a driving amplifying circuit in the volume monitoring electronic cabin 7 through a signal transmission line, and the grating receiver is connected with a signal acquisition processing circuit in the volume monitoring electronic cabin 7 through a signal transmission line. The grating transmitter, the grating receiver and the volume monitoring electronic cabin are connected with a power supply through power lines.
As shown in fig. 10, the second group of monitoring sensors 9 is similar in structure to the first group of monitoring sensors 8, except that a boundary c between the grating transmitter and the grating receiver in the second group of monitoring sensors 9 is in a spatially perpendicular relationship with a boundary between the two in the first group of monitoring sensors 8, that is, the two boundaries are at an angle of 90 degrees, a portion a on the upper side of the boundary c is provided with the grating transmitter, and b portion on the lower side of the boundary c is provided with the grating receiver. The arrangement mode of the first group of monitoring sensors 8 and the second group of monitoring sensors 9 can avoid the influence on the collection of grating signals due to the shielding of the pipe wall, can monitor the grating signals at all angles in the monitoring pipeline in an all-round mode, and improves the accuracy of monitoring data.
In each group of monitoring sensors, the number of the grating transmitters and the grating receivers needs to be determined according to the pipe diameter of the monitoring pipeline 13 and the transmission light diameter of the grating transmitters, assuming that the pipe diameter of the monitoring pipeline is d, the transmission light diameter of the grating transmitters is d', and the number N of the grating transmitters needs to satisfy: d/(2 x d ') < N < d/d'. The number of grating receivers is equal to the number of grating transmitters. In this embodiment, the number of grating transmitters and the number of grating receivers of the two groups of monitoring sensors are equal.
It should be noted that, in other embodiments of the present invention, a group of monitoring sensors may also be adopted, and a sufficient number of grating transmitters and grating receivers are arranged along the outer wall of the monitoring pipeline, so that in theory, the omnidirectional non-blocking monitoring can also be realized. For example, closely arranged around the outer wall of the monitoring conduit.
As shown in figure 11, the connecting shaft 10 is a right-angle connecting shaft, a third connecting flange 10-1 and a fourth connecting flange 10-3 are respectively arranged at two ends of the shaft 10-2, wherein the size of the third connecting flange 10-1 is consistent with the shaft diameter of the shaft 10-2, the third connecting flange is connected with a connecting shaft fixing base 11-4 of the inner telescopic pipe 11, and the fourth connecting flange 10-3 is connected with a fifth connecting flange 6-1 on the sliding block 6 through bolts. The structure of the sliding block 6 is shown in figure 12 and comprises a main body 6-2, a fifth connecting flange 6-1 is arranged on the end face of one side of the main body 6-2, a threaded hole 6-3 which is vertically through is arranged in the main body 6-2, and the threaded hole 6-3 is in threaded connection with a lead screw 4.
The marine submersible oil recovery pipeline capable of preventing the pump from being internally blocked and adaptively adjusting the pipe diameter is applied to marine submersible oil recovery and transportation, the rear end of a monitoring pipeline is connected with a recovery pump, and the control principle is shown in figure 13. The recovery pump sucks the submersible oil containing the solid submersible oil clot 15 into the adjustable telescopic pipeline through the recovery pipe 2-1 after gathering through the horn-shaped gathering port 2-3 by virtue of the pumping action of the recovery pump, at the moment, the inner telescopic pipe 11 is in a natural state, and after the solid submersible oil clot enters the monitoring pipeline 13, the optical signal cannot be received by the grating receiver due to the shielding of the submersible oil clot on the emitted light of the grating transmitter. The larger the volume of the submersible clot, the more the emitted light is blocked and the less the optical signal is received by the grating receiver. The light signals received by the grating receivers are processed into digital signals through a signal acquisition processing circuit in the volume monitoring electronic cabin 7 and transmitted to the central processing unit 3, the central processing unit 3 calculates the received signals of the two groups of grating sensors, if the receiving numerical values of the two groups of grating receivers are not more than a set threshold value, for example, the set threshold value is 40%, it is judged that in the liquid-solid two-phase flow in the pipeline, the volume of the solid oil block is large and the oil block is large, the central control unit 3 transmits a control signal to the servo motor 5, the servo motor 5 controls the slide block 6 on the lead screw 4 to move, the slide block 6 drives the connecting shaft 10 to do forward-extending movement, the inner telescopic pipe 11 is controlled to contract along the radial direction, the inner diameter of the pipeline is reduced, whether the volume of the solid oil block of the pipeline 13 is reduced or not is monitored, and if the volume of the solid oil block is not reduced, the pipe diameter of the inner telescopic pipe 11 is continuously contracted. The inner telescopic pipe 11 is a smooth wall surface, contraction and expansion are smooth transition, and local solid oil block deposition cannot be formed in the pipe. If the volume of the solid oil block in the monitoring pipeline 13 is monitored to be reduced, namely the receiving value of the grating receiver is greater than the set threshold value, after the monitoring pipeline lasts for 5 minutes, the pipe diameter of the inner telescopic pipe 11 is adjusted to be restored to a natural state, submersible liquid and clot can pass through, and the recovery efficiency is improved.
Claims (6)
1. The utility model provides a prevent to block up oily recovery pipeline of diving at sea of self-adaptation adjustment pipe diameter in pump which characterized in that: comprises an adjustable telescopic pipeline, a monitoring pipeline and a central controller; the monitoring pipeline is arranged at the rear end of the adjustable telescopic pipeline; wherein the adjustable telescopic pipeline is connected with an adjusting mechanism; a monitoring device is arranged on the monitoring pipeline; the adjusting mechanism and the monitoring device are connected with the central controller; the central controller controls the action of the adjusting mechanism according to the monitoring result of the monitoring device, so as to adjust the pipe diameter of the adjustable telescopic pipeline; the adjustable telescopic pipeline comprises an external supporting pipe and an internal telescopic pipe; the outer supporting tube is a reducer tube, and the tube diameter of the middle part and the tube diameters of the two ends meet the requirement of (1.1-1.3) to 1; the inner telescopic pipe is arranged at the middle part of the outer supporting pipe; the adjusting mechanism is circumferentially arranged along the adjustable telescopic pipeline and comprises a servo system, a transmission device and a connecting shaft; one end of the connecting shaft is connected with the inner telescopic pipe, and the other end of the connecting shaft is connected with a servo system through a transmission device; the servo system drives the connecting shaft to adjust the inner diameter of the adjustable telescopic pipeline.
2. The marine submersible recovery pipeline with self-adaptive pipe diameter adjustment for preventing blockage in a pump according to claim 1, which is characterized in that: and a telescopic spring is arranged between the external supporting tube and the internal telescopic tube.
3. The marine submersible recovery pipeline with adaptive pipe diameter adjustment for preventing blockage in a pump according to claim 1, characterized in that: the monitoring pipeline is a transparent pipe, and the monitoring device comprises a volume monitoring electronic cabin arranged on the outer wall of the transparent pipe; at least one group of monitoring sensors are arranged at the position of the volume monitoring electronic cabin along the circumferential direction of the transparent pipe; the monitoring sensor comprises a plurality of grating transmitters arranged at equal intervals and a same number of grating receivers.
4. The marine submersible recovery pipeline with self-adaptive pipe diameter adjustment for preventing blockage in a pump according to claim 3, characterized in that: the monitoring device comprises two groups of monitoring sensors which are arranged along the circumference of the transparent pipe; in the two groups of monitoring sensors, the boundary lines of the grating transmitter and the grating receiver are vertical to each other.
5. The marine submersible recovery pipeline capable of preventing blockage in a pump and adaptively adjusting the pipe diameter according to claim 3, characterized in that: a driving amplification circuit and a signal acquisition processing circuit are arranged in the volume monitoring electronic cabin; the driving amplification circuit is connected with the grating transmitter, and the signal acquisition processing circuit is connected with the grating receiver; the volume monitoring electronic cabin is connected with the central controller.
6. The offshore submersible recovery pipeline with adaptive pipe diameter adjustment for preventing blockage in a pump according to any one of claims 1 to 5, characterized in that: the adjustable telescopic pipeline is characterized by further comprising a gathering device arranged at the front end of the adjustable telescopic pipeline, wherein the gathering device is provided with a horn-shaped gathering port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210283697.2A CN114370541B (en) | 2022-03-23 | 2022-03-23 | Offshore submersible recovery pipeline capable of preventing pump from being internally blocked and adaptively adjusting pipe diameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210283697.2A CN114370541B (en) | 2022-03-23 | 2022-03-23 | Offshore submersible recovery pipeline capable of preventing pump from being internally blocked and adaptively adjusting pipe diameter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114370541A CN114370541A (en) | 2022-04-19 |
| CN114370541B true CN114370541B (en) | 2022-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210283697.2A Active CN114370541B (en) | 2022-03-23 | 2022-03-23 | Offshore submersible recovery pipeline capable of preventing pump from being internally blocked and adaptively adjusting pipe diameter |
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| CN (1) | CN114370541B (en) |
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| CN210890500U (en) * | 2019-11-10 | 2020-06-30 | 江苏巨洋成套设备有限公司 | Reinforced flange type oil suction port for marine ship |
| CN210770669U (en) * | 2019-11-14 | 2020-06-16 | 昆山新联德五金机械设备有限公司 | Can adjust five metals sleeve pipe of bore size |
| CN213236484U (en) * | 2020-08-18 | 2021-05-18 | 石家庄志创机械制造有限公司 | Water pipe joint with good sealing performance |
| CN213839885U (en) * | 2020-10-14 | 2021-07-30 | 江苏狼博管件制造有限公司 | Composite pipe fitting with strong flame-retardant effect |
| CN214222326U (en) * | 2020-12-08 | 2021-09-17 | 河南华源供水设备有限公司 | Spacing flexible rubber joint |
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2022
- 2022-03-23 CN CN202210283697.2A patent/CN114370541B/en active Active
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