CN102561285A - Suction penetration control method - Google Patents
Suction penetration control method Download PDFInfo
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- CN102561285A CN102561285A CN2010105964128A CN201010596412A CN102561285A CN 102561285 A CN102561285 A CN 102561285A CN 2010105964128 A CN2010105964128 A CN 2010105964128A CN 201010596412 A CN201010596412 A CN 201010596412A CN 102561285 A CN102561285 A CN 102561285A
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Abstract
The invention discloses a suction penetration control method, which includes the steps: firstly, detecting the conditions of a bucket foundation to obtain detection signals; secondly, determining whether the detection signals meet pre-stored control targets or not, moving to step 3 if yes, and rewinding to the step 1 if no; and thirdly changing operation conditions of a corresponding actuator according to a preset control strategy. By the suction penetration control method, the conditions of the bucket foundation can be detected in real time, and the conditions of the bucket foundation can be controlled, so that full automatic control is realized, control accuracy is guaranteed, and construction quality is improved.
Description
Technical field
The present invention relates to offshore construction platform base construction technique field, particularly relate to the heavy control method of passing through of a kind of suction type.
Background technology
Barrel base is the barrel shaped structure of a kind of top closure, bottom end opening; Be applied to offshore oil platform the earliest, and be that production platform provides bearing capacity and seabed to fix, in recent years in the region, shallow sea; Development along with the offshore wind farm technology; Barrel base also is applied in the blower fan installing area, and therefore, the technique for fixing of barrel base also more and more receives those skilled in the art's concern.
In order to realize that the heavy of barrel base passes through and extract, be provided with one cover is heavy and pass through system, mainly comprise valve, pipe-line system, vacuum pump, centrifugal pump, strainer and control device.
Pass through in the process heavy; Extract the air in the bucket through control device control vacuum pump; And extract the seawater in the bucket through the control centrifugal pump, and make between barrel base inside and outside and form pressure differential, make external pressure greater than internal pressure; Thereby, externally make barrel base underground under the effect of pressure to being lowered into; In last process of pulling out, to the inside of barrel base water-filling, make internal pressure greater than external pressure through control device control centrifugal pump; Thereby; Under the effect of internal pressure, barrel base is moved upward, reach certain displacement after, make barrel base extract ground.
Yet since barrel base heavy pass through and in the process of pulling out; Be difficult to guarantee that the pressure of its inner different chamber is identical; Thereby can cause the pressure differential in the different chamber unbalanced; And then make the rising of different chamber or the speed that descends inconsistent; Thereby cause the barrel base run-off the straight, barrel base certain gradient state can increase down heavy pass through and on the resistance that pulls out, also may cause barrel base can't sink to the subsidence position of setting when serious perhaps can't be with barrel base from the following problem of pulling out
At present, it mainly is to adopt manually or semiautomatic control that barrel base heavy passes through control, operating personnel control heavy pass through or in the process of pulling out; Inclination situation through the perusal barrel base; If find, then artificial action promotes barrel base and recovers level in barrel base; Perhaps people's duty of valve or vacuum pump, centrifugal pump for a change, and then the adjustment barrel base recovers level; Yet the control procedure of above-mentioned control mode is complicated, and control accuracy is very poor, can't guarantee construction quality.
Therefore, how to improve to barrel base heavy pass through and on pull out the control of process, improve barrel base heavy pass through and on the construction quality of pulling out, just become the present technical issues that need to address of those skilled in the art.
Summary of the invention
The purpose of this invention is to provide the heavy control method of passing through of a kind of suction type; This control method can detect the state of barrel base constantly, and can control the state of barrel base, has realized Automatic Control; Guarantee the accuracy of control, improved the quality of construction.
For solving the problems of the technologies described above, the present invention provides a kind of suction type to sink and passes through control method, may further comprise the steps:
1) state of detection barrel base obtains detection signal;
2) judge whether said detection signal reaches the control target that prestores, if, turn to step 3), otherwise, turn to step 1);
3) change the duty of corresponding actuating unit according to the expectant control strategy.
Preferably,
Step 1) comprises: 11) detect the angle of inclination of said barrel base, obtain dip angle signal;
Step 2) comprising: judge 12) whether said angle of inclination reaches predetermined inclination, if, turn to step 13), otherwise, turn to step 11);
Step 3) comprises: the aperture of 13) adjusting corresponding valve according to the expectant control strategy.
Preferably,
Step 1) also comprises: 21) detect the displacement of said barrel base at vertical direction, obtain displacement signal;
Step 2) also comprise: judge 22) whether said displacement falls in the predetermined displacement weight range, if turn to step 23), otherwise, turn to step 21);
Step 3) also comprises: 23) close centrifugal pump or vacuum pump according to the expectant control strategy.
Preferably,
Step 1) also comprises: 31) detect the time that said barrel base moves, obtain time signal, and obtain rate signal according to said displacement signal and said time signal;
Step 2) also comprise: judge 32) whether the speed that said barrel base moves reaches predetermined movement velocity, if turn to step 33), otherwise, turn to step 31);
Step 3) also comprises: the pump output of 33) adjusting centrifugal pump or vacuum pump according to the expectant control strategy.
Preferably,
Step 1) also comprises: 41) detect the pressure in said barrel base and the pipe-line system thereof, obtain pressure signal;
Step 2) also comprise: judge 42) whether said pressure reaches the maximum pressure value, if turn to step 23), otherwise, turn to step 41).
Preferably,
Step 1) also comprises: 51) detect the height of water level in the said barrel base, obtain water level signal;
Step 2) also comprise: judge 52) whether said water level reaches the precalculated position, if turn to step 53), otherwise turn to step 51);
Step 3) also comprises: 53) close said vacuum pump, open said centrifugal pump.
The suction type of the duty that is used to control barrel base provided by the present invention is heavy to pass through control method, at first detects the state of barrel base, obtains detection signal; Then detection signal and the control target that prestores are compared, judge whether detection signal reaches the control target that prestores, if then change the duty of corresponding actuating unit, and then adjust the state of barrel base according to the expectant control strategy; Otherwise, continue to detect again, with guarantee barrel base with state preferably realize heavy pass through and on pull out.Like this, suction type provided by the present invention is heavy to pass through control method, owing to can detect the state in the barrel base motion process constantly; The accuracy that detects is higher; Simultaneously above-mentioned detection signal and the control target that prestores are compared, and draw the higher control action instruction of accuracy according to control strategy, and then through changing the duty of corresponding actuating unit; Realization is to the change of the state of barrel base; The accuracy of whole control process is higher, and can grasp the construction process of barrel base in real time, prevented barrel base heavy pass through and on phenomenon such as inclination appears in the process of pulling out; And can understand barrel base and sink to the degree of depth in the mud, guarantee the stability of construction quality and barrel base.
Description of drawings
Fig. 1 passes through the flow chart of control method for first kind of suction type that the specific embodiment provided of the present invention is heavy;
Fig. 2 is the heavy structural representation that passes through system of a kind of barrel base in the prior art;
The heavy flow chart of control method that passes through of second kind of suction type that the specific embodiment provided of Fig. 3 the present invention;
The heavy control method flow chart that passes through of the suction type that Fig. 4 is provided for the third specific embodiment of the present invention;
Fig. 5 passes through the control method flow chart for the 4th kind of suction type that the specific embodiment provided of the present invention is heavy;
Fig. 6 passes through the control method flow chart for the 5th kind of suction type that the specific embodiment provided of the present invention is heavy;
Fig. 7 passes through the control method flow chart for the 6th kind of suction type that the specific embodiment provided of the present invention is heavy.
The specific embodiment
Core of the present invention provides the heavy control method of passing through of a kind of suction type; This control method can detect the state of barrel base constantly, and can control the state of barrel base, has realized Automatic Control; Guarantee the accuracy of control, improved the quality of construction.
For the technician who makes the present technique field understands scheme of the present invention better, the present invention is done further detailed description below in conjunction with the accompanying drawing and the specific embodiment.
Please refer to Fig. 1 and Fig. 2, Fig. 1 passes through the flow chart of control method for first kind of suction type that the specific embodiment provided of the present invention is heavy; Fig. 2 is the heavy structural representation that passes through system of a kind of barrel base in the prior art.
In a kind of specific embodiment, as shown in Figure 1, the suction type of the duty that is used to control barrel base provided by the present invention is heavy to pass through control method, may further comprise the steps:
Step S1: detect the state of barrel base, obtain detection signal;
As shown in Figure 2; The heavy system of passing through of barrel base of the prior art mainly comprises respectively three three pipelines that along the circumferential direction equally distributed bucket chamber 11 is communicated with barrel base; Be connected with proportioning valve 12 in each pipeline respectively; Article three, pipeline all can be selected the circuit communication with vacuum pump 14 place as required, and perhaps with the circuit communication at centrifugal pump 13 places, barrel base also comprises the platform (not shown) that is supported by three bucket chambers 11; The heavy control method of passing through of suction type realizes the control to the state of platform mainly through the state of three bucket chambers 11 of control.In the course of work, can realize the barrel base status detection through checkout gear.
Step S2: judge whether said detection signal reaches the control target that prestores, if, turn to step S3, otherwise, turn to step S1;
Determining step can be realized through control device; But equally also can realize,, judge by the staff such as detection signal is shown in the staff through display through other modes; But when being provided with control device; The automaticity of the motion control process of barrel base is higher, at this, is that example describes to be provided with control device.
Checkout gear obtains after the status signal of barrel base it being passed to control device, after control device receives above-mentioned detection signal; Detection signal and the control target that prestores are compared, judge whether said detection signal reaches the control target that prestores, when detection signal reaches in the scope of above-mentioned control target; Turn to step S3, otherwise, turn to step S1; Continue to detect the state of barrel base, to realize constantly to the barrel base status detection.
Step S3: the duty that changes corresponding actuating unit according to the expectant control strategy.
When detection signal reaches in the scope of above-mentioned control target; Control device draws the action command of actuating unit according to the expectant control strategy; And send action command to corresponding actuating unit; Make actuating unit change duty, and then the state of adjustment barrel base, guarantee barrel base with state preferably realize heavy pass through and on pull out.
Particularly, in order to more clearly understand the state of barrel base, the number of checkout gear can be for a plurality of; To detect the different conditions index of barrel base respectively; Correspondingly, the control target that prestores also should be for a plurality of, thereby each index of barrel base is controlled; Actuating unit particularly can be for the valve of barrel base, be used for the vacuum pump of extracting air and be used to extract the centrifugal pump of water; Control device is according to detection signal and the control strategy that prestores; Control corresponding actuating unit and change state, realize adjustment the state of barrel base.
Can find out that suction type provided by the present invention is heavy to pass through control method, owing to can detect the state in the barrel base motion process constantly; The accuracy that detects is higher; Simultaneously above-mentioned detection signal and the control target that prestores are compared, and draw the higher control action instruction of accuracy according to control strategy, and then through changing the duty of corresponding actuating unit; Realization is to the change of the state of barrel base; The accuracy of whole control process is higher, and can grasp the construction process of barrel base in real time, prevented barrel base heavy pass through and on phenomenon such as inclination appears in the process of pulling out; And can understand barrel base and sink to the degree of depth in the mud, guarantee the stability of construction quality and barrel base.
Please refer to Fig. 3, the heavy structured flowchart of control method that passes through of second kind of suction type that the specific embodiment provided of Fig. 3 the present invention.
In a kind of specific embodiment, the step that suction type provided by the present invention is heavy to pass through control method specifically can for:
Step S11: detect the angle of inclination of said barrel base, obtain dip angle signal.
Since barrel base heavy pass through and in the process of pulling out than the inconsistent situation of movement velocity that is easier to occur each barrel chamber 11; Thereby cause the run-off the straight of barrel base, increase heavy pass through and on the resistance that pulls out, even the problem that can't sink to putting in place or can't extract appears; Therefore; Suction type provided by the present invention is heavy to pass through the angle of inclination that control method detects barrel base constantly, thereby can understand the tilt condition of barrel base constantly, and it is controlled.
In order to detect the angle of inclination of barrel base, specifically can realize through the level inclination sensor is set on barrel base.
Step S12: judge whether the angle of inclination reaches predetermined inclination, if, turn to step S13, otherwise, turn to step S11.
The level inclination sensor detects after the angle of inclination of barrel base, and dip angle signal is passed to control device, and control device compares angle of inclination that receives and the inclination angle that prestores; Judge that the angle of inclination is enough to have reached the angle that prestores; When reaching, turn to step S13, otherwise; Turn to step S11, continue the gradient of barrel base is detected.
Step S13: the aperture of adjusting corresponding valve according to the expectant control strategy.
When the angle of inclination is when enough having reached the angle that prestores; Control device is according to the information such as concrete incline direction of barrel base; And the control strategy that prestores draws action command, sends action command to the proportioning valve 12 of corresponding bucket chamber 11, and control ratio valve 12 changes apertures; Thereby change air or the outflow of seawater or the speed of inflow in 12 pairing barrels of chambers of this proportioning valve 11; Adjust this barrel chamber 11 heavy pass through or on the speed of pulling out, thereby the gradient of the platform of adjustment barrel base prevents that the angle of inclination of barrel base is excessive.
Like this; Suction type provided by the present invention sinks and passes through the angle of inclination that control method can detect barrel base constantly; And angle of inclination of detecting and predetermined angle compared; When the angle of inclination surpasses predetermined angular, control corresponding actuating unit 24 change states, guaranteed barrel base heavy pass through or on basic maintenance level in the process of pulling out; Prevented that inclination owing to barrel base from causing heavy pass through or on pull out resistance increase, guarantee successfully to accomplish barrel base heavy pass through and on pull out.
Please refer to Fig. 4, the heavy structured flowchart of control method that passes through of the suction type that Fig. 4 is provided for the third specific embodiment of the present invention.
Shown in figure, the heavy control method of passing through of suction type provided by the present invention can also increase the control step on the basis of above-mentioned embodiment, specifically can also may further comprise the steps:
Step S21: detect the displacement of said barrel base, obtain displacement signal at vertical direction.
In order to be well understood to the heavy displacement that passes through of barrel base; Whether heavy passing through puts in place to judge barrel base; Provided by the present inventionly heavy pass through control method and can also detect the displacement of barrel base at vertical direction; Specifically can realize that displacement transducer detects the displacement of barrel base at vertical direction, obtains displacement signal on barrel base through displacement transducer is set.
Step S22: judge whether displacement falls in the displacement scope that prestores, if, turn to step S23, otherwise, turn to step S21.
Displacement transducer is passed to control device with the displacement signal that obtains; Control device compares displacement that receives and the displacement scope that prestores, and judges whether the displacement of barrel base has been fallen in the above-mentioned scope, in the time of in the vertical displacement amount of barrel base is fallen above-mentioned predetermined displacement weight range; Turn to step S23; Otherwise, turn to step S21, continue the displacement of barrel base is detected and controls.
Step S23: close centrifugal pump or vacuum pump according to the expectant control strategy.
In the time of in the vertical displacement amount of barrel base is fallen above-mentioned predetermined displacement weight range; Show that then the heavy amount of passing through of barrel base can satisfy the requirement of the stability of barrel base; Control device sends action command to centrifugal pump 13 or vacuum pump 14; Centrifugal pump 13 or vacuum pump 14 quit work according to above-mentioned action command, pass through thereby accomplish the heavy of barrel base 21.
To the detection of the displacement of barrel base, can guarantee constantly to understand barrel base heavy pass through or on the degree of depth of pulling out, guaranteed construction quality.
Please refer to Fig. 5, Fig. 5 passes through the control method flow chart for the 4th kind of suction type that the specific embodiment provided of the present invention is heavy.
Further, if may the earth in the bucket chamber 11 be extracted into the external world through centrifugal pump 13 or vacuum pump 14 because the movement velocity of barrel base is too high, thereby the earth amount in the barrel base that makes reduces; Influence the stability of barrel base, therefore, suction type provided by the present invention is heavy pass through that control method not only need control barrel base heavy pass through or on pull out the degree of depth; Also need controller heavy pass through or on the speed of pulling out, can know according to the computational methods of speed, existing heavy passing through on the basis of displacement; As long as can access the time; Just can obtain speed, for this reason, suction type provided by the present invention is heavy to be passed through control method and can also may further comprise the steps:
Step S31: detect the time that said barrel base moves, obtain time signal, and obtain rate signal according to displacement signal and time signal;
Step S32: judge whether the speed that barrel base moves reaches the movement velocity that prestores, if, turn to step S33, otherwise, turn to step S33;
Step S33: according to the pump output of expectant control strategy adjustment centrifugal pump or vacuum pump.
Can utilize the traveling time of timer detection barrel base, and above-mentioned time signal is passed to control device, control device obtains rate signal according to displacement signal and time signal; And with control device in barrel base predetermined movement velocity relatively; Judge whether the speed that barrel base moves reaches the movement velocity that prestores, when the movement velocity of barrel base reached above-mentioned predetermined movement velocity, control device sent action command to centrifugal pump 13 or vacuum pump 14; Control centrifugal pump 13 or vacuum pump 14 reduce discharge capacity; To reduce the movement velocity of barrel base, avoid the earth in the bucket chamber 11 is extracted out beyond the supporting leg, influence the stability of supporting leg.
Please refer to Fig. 6, Fig. 6 passes through the flow chart of control method for the 5th kind of suction type that the specific embodiment provided of the present invention is heavy.
Especially; Because the moving displacement and the pressure in the barrel base of barrel base can be as judging the barrel base basis for estimation whether sedimentation puts in place; As long as wherein one satisfy the demand and all be fine, therefore, suction type provided by the present invention is heavy to be passed through control method and can also may further comprise the steps
Step S41: detect the pressure in barrel base and the pipe-line system thereof, obtain pressure signal;
Step S42: judge whether pressure reaches the maximum pressure value) if turn to step 23, otherwise, turn to step S41.
Can realize detection through pressure sensor to the pressure in barrel base and the pipe-line system thereof; The pressure signal transmission that pressure sensor obtains detection is to control device; Control device compares detected pressures value and the maximum pressure value that prestores; Judge whether pressure reaches the maximum pressure value, when above-mentioned force value reaches the maximum pressure value, explain that barrel base can satisfy the support needs; Thereby control device control centrifugal pump 13 or vacuum pump 14 quit work, in case cause potential safety hazard owing to pressure is excessive.
Please refer to Fig. 7, Fig. 7 passes through the control method flow chart for the 6th kind of suction type that the specific embodiment provided of the present invention is heavy.
Owing to pass through in the process heavy; Vacuum pump 14 at first by bucket chamber 11 interior outwards extracting airs, after air extracts completion, switches to the moisture that centrifugal pump 13 extracts in barrel chambers 11 again; Accomplish for fear of extracting at air; Through vacuum pump 14 withdrawing moistures, vacuum pump 14 is caused damage, suction type provided by the present invention is heavy to be passed through control method and can also may further comprise the steps:
Step S51: detect the height of water level in the said barrel base, obtain water level signal;
Step S52: judge whether said water level reaches the precalculated position, if turn to step S53, otherwise turn to step S51;
Step S53: close said vacuum pump, open said centrifugal pump.
In order to detect the height of water level in the barrel base; Can in barrel base or its pipe-line system, level sensor be set; Whether the water level that level sensor detects in the barrel base arrives the precalculated position, and when water level arrived the precalculated position, level sensor just sent water level signal to control device; Control device can judge that water level has arrived predetermined altitude after receiving water level signal, and the centrifugal pump 13 of just controlling vacuum pump 14 switchings carries out work.
On the other hand, the step that is increased in the above-mentioned different embodiments can be provided with separately as required, perhaps selectively is provided with several groups in one embodiment; Be not limited to the compound mode in each specific embodiment of this paper; On barrel base, pull out simultaneously and sink in the process of passing through, the above-mentioned step of respectively organizing is carried out side by side, does not have absolute sequencing; Certainly, also can select to adopt a kind of sequencing wherein.
More than pass through control method and carried out detailed introduction suction type provided by the present invention is heavy.Used concrete example among this paper principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (6)
1. a suction type sinks and passes through control method, may further comprise the steps:
1) state of detection barrel base obtains detection signal;
2) judge whether said detection signal reaches the control target that prestores, if, turn to step 3), otherwise, turn to step 1);
3) change the duty of corresponding actuating unit according to the expectant control strategy.
2. suction type according to claim 1 is heavy to pass through control method, it is characterized in that,
Step 1) comprises: 11) detect the angle of inclination of said barrel base, obtain dip angle signal;
Step 2) comprising: judge 12) whether said angle of inclination reaches predetermined inclination, if, turn to step 13), otherwise, turn to step 11);
Step 3) comprises: the aperture of 13) adjusting corresponding valve according to the expectant control strategy.
3. suction type according to claim 2 is heavy to pass through control method, it is characterized in that,
Step 1) also comprises: 21) detect the displacement of said barrel base at vertical direction, obtain displacement signal;
Step 2) also comprise: judge 22) whether said displacement falls in the predetermined displacement weight range, if turn to step 23), otherwise, turn to step 21);
Step 3) also comprises: 23) close centrifugal pump or vacuum pump according to the expectant control strategy.
4. suction type according to claim 3 is heavy to pass through control method, it is characterized in that,
Step 1) also comprises: 31) detect the time that said barrel base moves, obtain time signal, and obtain rate signal according to said displacement signal and said time signal;
Step 2) also comprise: judge 32) whether the speed that said barrel base moves reaches predetermined movement velocity, if turn to step 33), otherwise, turn to step 31);
Step 3) also comprises: the pump output of 33) adjusting centrifugal pump or vacuum pump according to the expectant control strategy.
5. suction type according to claim 4 is heavy to pass through control method, it is characterized in that,
Step 1) also comprises: 41) detect the pressure in said barrel base and the pipe-line system thereof, obtain pressure signal;
Step 2) also comprise: judge 42) whether said pressure reaches the maximum pressure value, if turn to step 23), otherwise, turn to step 41).
6. suction type according to claim 5 is heavy to pass through control method, it is characterized in that,
Step 1) also comprises: 51) detect the height of water level in the said barrel base, obtain water level signal;
Step 2) also comprise: judge 52) whether said water level reaches the precalculated position, if turn to step 53), otherwise turn to step 51);
Step 3) also comprises: 53) close said vacuum pump, open said centrifugal pump.
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| CN2010105964128A CN102561285A (en) | 2010-12-20 | 2010-12-20 | Suction penetration control method |
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| CN2010105964128A CN102561285A (en) | 2010-12-20 | 2010-12-20 | Suction penetration control method |
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| US10100482B2 (en) | 2013-08-28 | 2018-10-16 | Mhi Vestas Offshore Wind A/S | Method of installing an offshore foundation and template for use in installing an offshore foundation |
| CN108824498A (en) * | 2018-06-07 | 2018-11-16 | 中交第三航务工程局有限公司 | A kind of negative pressure tub basis self-pressing type anti-pulling capacity detection method |
| CN113946123A (en) * | 2021-12-20 | 2022-01-18 | 中铁大桥科学研究院有限公司 | Suction barrel foundation construction pump prying block and suction barrel foundation construction pump prying block control method |
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| CN113946123A (en) * | 2021-12-20 | 2022-01-18 | 中铁大桥科学研究院有限公司 | Suction barrel foundation construction pump prying block and suction barrel foundation construction pump prying block control method |
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Application publication date: 20120711 |