-
1.发明授权
公开(公告)号：US3690180A
公开(公告)日：1972-09-12
申请号：US3690180D
申请日：1970-01-30
Applicant: SPANSTAAL
Inventor： VEER ROMKE VAN DER
Abstract: When measuring the quantity of sand in a dredger vessel which sand is sedimented from a suspension of sand and water, the height of the sedimented sand is determined by means of inaccurate mechanical sensitive means acting on the surface of the sedimented sand. An accurate method of measuring is provided in which fluid, such as water, is so fed at pressure, into the hold at at least one measuring place provided in said hold, that the fluid fluidizes the compacted material sedimented at the measuring place, the pressure at the measuring place being picked up when said material is in fluidized state, so that the pressure picked up corresponds with the weight of the column of dredger spoil and water, from which the weight of the loaded material at the measuring place is derived.
Abstract translation: 当测量沙子从沙子和水的悬浮液中沉淀出来的挖泥船中的沙子的数量时，沉积的沙子的高度是通过作用在沉积砂表面上的不准确的机械敏感手段来确定的。 提供了一种精确的测量方法，其中诸如水的流体在压力下被馈送到在所述保持器中设置的至少一个测量位置处的保持件中，流体使沉积在测量位置的压实材料流体流动，压力 在所述材料处于流化状态时被拾取的测量位置，使得所拾取的压力对应于挖泥船弃渣和水的塔的重量，从中导出测量位置处的负载材料的重量。
-
2.发明授权
公开(公告)号：US3628263A
公开(公告)日：1971-12-21
申请号：US3628263D
申请日：1969-07-02
Applicant: SPANSTAAL
Inventor： VEEN ROMKE VAN DER
CPC classification number: E02F3/907 , Y10T137/2506
Abstract: A pressure differential measuring device is located on board a dredging vessel. The water-filled lines transmitting to the measuring device communicate with branches of a purgative water system at points located sufficiently higher than the discharge points of the branches that the pressures at such communication points never falls below the value of the vapor pressure of the water, thus allowing the onboard placement of the measuring device. Also, the communicating points are so located that the ratio of the branch flow pressure loss in one branch at its communicating point with respect to the branch flow pressure loss at its discharge point is equal to the ratio of these values in the other branch. In this way, the measured pressure differential is independent of the purgative pump output.
-
公开(公告)号：US3756659A
公开(公告)日：1973-09-04
申请号：US3756659D
申请日：1968-10-07
Applicant: SPANSTAAL
Inventor： DE KONING J
CPC classification number: E02F3/9243 , E02F3/9293
Abstract: In a suction dredging installation comprising a suction pipe which is connected to a pump and which has a suction mouth at its end and a throat between the pump and the suction mouth, in which the nominal flow section of the suction pipe has substantially a same value from the throat to the pump, whereas the flow section of the suction mouth is larger than said nominal flow section, the part of the suction pipe with the nominal flow section at the location of the throat is provided with a collar extending radially outwards, while the part of the suction pipe extending from the suction mouth to the throat has substantially the large flow section of the suction mouth. This shape of the suction pipe results in a toroidal supporting vortex arising before the throat which considerably reduces flow resistance.
-
公开(公告)号：US3611595A
公开(公告)日：1971-10-12
申请号：US3611595D
申请日：1969-08-08
Applicant: SPANSTAAL
Inventor： KONING JAN DE
CPC classification number: E02F3/907 , Y10T137/0335 , Y10T137/2506
Abstract: METHOD AND APPARATUS FOR SUCTION DREDGING PARTICULATE MATERIAL SUCH AS SAND. A SUCTION PIPE IS INSERTED INTO A BODY OF SAND BELOW THE BOTTOM OF A BODY OF WATER TO WITHDRAW A WATER-SAND SUSPENSION HAVING A DESIRED CONCENTRATION OF SAND IN SUCH SUSPENSION. AT THE LOWER END OF THE PIPE, THE SAND IS DRAWN IN AT VERY HIGH CONCENTRATION AND AT SOME LEVEL ABOVE THIS POINT WATER IS SEPARATELY IN-
TRODUCED AND THE DESIRED CONCENTRATION IS OBTAINED BY ADJUSTING THE LEVEL AT WHICH THE WATER IS INTRODUCED. THE CONCENTRATION OF THE RESULTING SUSPENSION IS MEASURED TO ENABLE THE LEVEL OF WATER INTRODUCTION TO BE ADJUSTED PROPERLY.-
5.发明授权
公开(公告)号：US3589040A
公开(公告)日：1971-06-29
申请号：US3589040D
申请日：1968-05-15
Applicant: SPANSTAAL
Inventor： KONING JAN DE , VEEN ROMKE VAN DER
CPC classification number: E02F3/907 , Y10S37/906
Abstract: In underwater dredging, the ambient pressure in the soil or sand being dredged adjacent the tip of the dredging pipe which is buried in the sand is used to control the dredging machinery so that the output of dredged material is increased. A pressure sensitive device is used to anticipate variations in concentration of the sand in the suspension of sand in water being dredged.
-
Patent Agency Ranking
公开(公告)号：US3585738A
公开(公告)日：1971-06-22
申请号：US3585738D
申请日：1968-10-07
Applicant: SPANSTAAL
Inventor： KONING JAN DE
CPC classification number: E02F3/9243 , E02F3/9293
Abstract: The relatively hard layer of clay which covers an underwater body of sand is penetrated rapidly by forcing the lower end of a suction-dredging pipe assembly into the layer while drawing water through the pipe at a sufficiently rapid rate as to erode the clay and form a core of clay in the lower end of the pipe. This core may be removed either by crushing same so that the flowing water rapidly washes it away, or by periodically maintaining suction on the pipe to retain the core, withdrawing the pipe from the hole and expelling the core, whereafter the operation is repeated until the body of sand is reached.
-
7.发明授权Method and device for determining the convey concentration of dredging spoil of a suspension of dredging spoil and water 失效用于确定干燥剂和水悬浮液的干燥剂的输送浓度的方法和装置
公开(公告)号：US3554011A
公开(公告)日：1971-01-12
申请号：US3554011D
申请日：1969-04-21
Applicant: SPANSTAAL
Inventor： VEEN ROMKE VAN DER
Abstract: A SYSTEM FOR MEASURING THE CONCENTRATION OF A DREDGING SPOIL SUSPENSION WHEREIN THE SUSPENSION IS CAUSED TO FLOW VERTICALLY UPWARDS AND VERTICALLY DOWNWARDS IN TWO PIPE SECTIONS. UPPER AND LOWER CONDUITS ARE COUPLED BETWEEN CORRESPONDING UPPER AND LOWER POINTS ON THE TWO VERTICAL PIPE SECTIONS, AND A PRESSURE PICKUP IS OBTAINED BETWEEN THE MIDPOINTS OF THE UPPER AND LOWER CONDUIT.
-
8.发明授权
公开(公告)号：US3554009A
公开(公告)日：1971-01-12
申请号：US3554009D
申请日：1969-04-21
Applicant: SPANSTAAL
Inventor： VEEN ROMKE VAN DER
Abstract: A METHOD AND APPARATUS ARE DISCLOSED FOR MEASURING THE QUANTITY OF DREDGING SPOIL. A FLOW OF THE SPOIL AND WATER IS GUIDED VERTICALLY UPWARDS ALONG A FIRST FLOW SECTION AND DOWNWARDS ALONG A SECOND FLOW SECTION. PRESSURE DIFFERENTIALS BETWEEN VERTICALLY SPACED POINTS ON EACH FLOW SECTION ARE OBTAINED AND ADDED. THE PRODUCT OF THE PRESSURE DIFFERENTIAL AND FLOW VELOCITY IS INTEGRATED DURING THE PERIOD IN WHICH THE DREDGING SPOIL IS BEING CONVEYED.
-
公开(公告)号：US3631997A
公开(公告)日：1972-01-04
申请号：US3631997D
申请日：1969-11-12
Applicant: SPANSTAAL
Inventor： KONING JAN DE
Abstract: In the conventional method of loading a hold of a vessel with dredging spoil, in which a suspension of water and dredging spoil is admitted into the hold after the hold overflows until the required amount of dredging spoil is situated in the hold. Much dredging spoil flows into the outboard water. A more efficient filling operation is obtained when the suspension is deposited in a tube which is so kept in the hold that it is surrounded by the hold on all sides, and which is kept at such a depth in the hold that the bottom of the tube always remains above the level of the settled part of the spoil, while the tube penetrates into the liquid.
Abstract translation: 在常规的装载具有疏浚弃渣的容器的方法中，其中在保持溢流之后将水和疏浚废弃物的悬浮液进入保持器中，直到所需量的疏浚弃渣位于保持物中。
-
公开(公告)号：US3585739A
公开(公告)日：1971-06-22
申请号：US3585739D
申请日：1968-10-07
Applicant: SPANSTAAL
Inventor： KONING JAN DE
CPC classification number: E02F3/9243 , E02F3/9293
Abstract: In dredging sand, an inner pipe is movable longitudinally within an outer jacket so that the lower end of the inner pipe may be projected beyond the lower end of the jacket and retracted within the jacket. Suction is maintained on the inner pipe and water under pressure is supplied to the jacket so that, when retracted, the lower end of the inner pipe draws in a mixture of sand and water entering the lower end of the jacket to provide the desired suspension in the pipe. In intermediate positions, the lower end portion of the inner pipe blocks the lower end of the jacket but the lower end portion of the inner pipe is formed to communicate the lower end of the inner pipe with the water under pressure in the jacket.
Abstract translation: 在一个吸入式疏浚设备中，该抽吸设备包括连接到泵的吸入管，并在其端部具有一个吸入口，在该泵和该吸入口之间的喉部，该吸入管的标称流动部分具有基本上相同的值 从喉部到泵，而吸嘴的流动部分大于所述标称流动部分，具有在喉部位置处的标称流动部分的吸入管的部分设置有径向向外延伸的颈圈，同时 从吸嘴延伸到喉部的吸管的部分基本上具有大的吸嘴的流动部分。 吸入管的这种形状导致在喉部之前产生的环形支撑涡流，这显着地降低了流动阻力。
-
-
-
-
-
-
-
-
-
Search Results
17
records
(took 0.008 seconds)
