SU917044A1 - Self-sontained sampler - Google Patents

Description

(54) AUTONOMOUS SAMPLE

The invention relates to autonomous technical means for sampling sediments from the bottom of reservoirs and can be used at geological, oceanological and hydrographic works; in the oceans.

Nowadays, sampling of sediments from the ocean floor 1 is made with the help of bottom catchers of various designs, lowered from the ship at the end of a multi-cable of a flat cable 1 ..

However, obtaining a sediment sample is associated with a large time-consuming vessel, which determines the high cost of the sample.

A sampler is known that allows to increase the productivity of work at great depths in the ocean and includes a float unit, a container with ballast, a mechanism for its discharge, a working body made in the form of a grab bucket, and the upper part of the sediment 2.

The disadvantage of the sampler is a violation of the structure of the sediment sample being taken during its sampling and the possibility of losing nodules during the closure of the grab bucket, which significantly reduces the reliability of the obtained geological information.

The purpose of the invention is to increase the reliability of the sample due to the preservation of donor samples selected by the hardening unit.

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This goal is achieved by the fact that in the auto-sampler, which includes a bow node, a co-container with ballast weights, a reset mechanism and a working body: with receiver 5, the working body is equipped with a pair of boxed body, the receiver is installed in a box housing with the ability to move

20 in a vertical direction, with the pair of covers being spring-loaded and kinematically connected to the receiver.

The working member is made with filtering cavities and is equipped with guide ribs.

And also the working body is equipped with sashes loosely suspended in the lower part of the filtration cavities.

The receiver is equipped with a mesh lid and spring and is made in the form of a box without a bottom, mainly rectangular in shape. The total surface area of the twin hinged covers is equal to the cross-sectional area of the receiver. The mechanism for resetting ballast weights is made by a kinematically disconnected receiver. FIG. 1 shows an autonomous sampler in the equipped state of a scientific research institute before immersion, general view; FIG. 2 - unit 1 in FIG. 1 (the working body of the sampler before immersion); FIG. 3 is a view A of FIG. 2 (iid on top of the working organ on the sampler); FIG. 4, node P of FIG. 2, before sampling; FIG. 5 shows the node P in FIG. 2 at the time of sampling. The design of the autonomous sampler includes a float assembly 1 with a detection system 2 and a ballast container Z / mounted at the bottom of the float 1 on the central rod 4, in which the box 5 of the sampler is mounted with vertical movement of the support 5 with the impactor 6, and support 5 , In ballast | container 3 is placed bashastnyh goods 8, supported on sashes 9 mounted on axles 10 and equipped with ti g 11, mounted on snap pins 12 sash 9 and t g ha 11 connected by means of a hinge 13. Latch 12 mounted on axes 14 .. In the inner cavity of the box body of the working body 7 of the sampler, a movable core receiver 15 mounted in a box-shaped rectangular section without a bottom and equipped with a mesh cover 16, on which a spring 17 is mounted, is movably mounted on the bottom edge of the movable core receiver 15 shoe 18. In the two opposite walls of the lower part of the box-shaped working body 7 of the sampler, slots 19 are made, in which paired covers 21 and 22, connected by a hinge 23, mutually spring-loaded with springs 24 and 25, are mounted on the axis 20, while the pause covers 21 and 22 are held from moving by the side surface of the movable core receiver 15, Filtration cavities 26 are provided on the outer part 1 of the orbchaty working body 7 of the sampler, equipped with flaps 28 and guiding ribs 29 which are freely suspended from hinges 27

Autonomous sampler works as follows.

After discharge from the vessel under the weight of ballast weights

The use of the proposed sampler allows us to significantly increase the reliability and reliability of the PS. 65 of the obtained geological information, the autonomous sampler is immersed and, reaching the bottom of the reservoir, is inserted into it by a box with a working body 7. During the downward movement, the freely suspended shutters 28 are pressed by the incident flow of water to the edges of the cavities 26 and at the time of introduction into the sediments they close the cavities 26 from precipitation . The guide ribs 29 impart stability to the vertical movement of the sampler. At the same time, the precipitates freely flow through the open bottom into the moving core receiver 15 and, having reached the mesh valve 16, abut it, moving the core receiver upward, compress the spring 17, Move the core iodine core up, move the core core upward, displace the core iodine core 16, move the core core upward, compress the spring core 17, move the core core 17, then move the core core upward, compress the core core 15, then move the core receiver 15, moving the core core 15, then move the core receiver 15, moving the core receiver 15, moving the core core 15, covers 21 and 22, which, under the action of springs 24 and 25, begin to rotate on axes 20 and 23 vadeigits from slots 19 of the Lorobchat working device 7 of the sampler to its central axis, section 4 of the axle, at the same B pesMH after the end of the BHejQpeHKH process of the working body 7 of the sampling system into the sediments, the float assembly 1 continues downward movement by inertia. In this case, the support 5 with the drummer b moves in the central datagyre 4 and strikes the latches 12, turning them 14, relieves the pulls 11, which, in their O4epej3bg, release the flaps 9 turning on the axis X 10 under the action of ballast weights 8 falling out of the ballast container 3, the autonomous sampler, having received positive buoyancy, begins to ascend the working unit 7 of the sampler nz precipitation, When moving the working body 7 of the sampler upwards, the shutters 28 start to open on axis 27, and open water through the filtering cavities 26, thereby reducing the suction phenomenon. At the same time, the movable core receiver 15 moves downward under the action of the spring 17 and acts with its lower edge on the hinge 23, closing the pair of covers 21 and 22, cutting off the sediment, and closing the inlet of the movable core receiver 16. Continuing ascent, the autonomous sampler is detached from the bottom of the reservoir and reaches the ocean surface, where it is detected by the vessel with the aid of a detection system and is taken aboard.

and improves the quality of deep-sea sampling as a whole.

Claims (6)

1. Autonomous sampler, including float assembly, container with ballast weights, a mechanism for their discharge and a working body with a receiver, characterized in that, in order to increase the reliability of the sample due to the preservation of the undisturbed structure of the selected precipitation data, the working body is equipped with siren-connected guys and is made in the form of a box-shaped case, the receiver is installed in a box-shaped housing with the possibility of movement in the vertical direction, with the pair of covers being podfuzhineny and kinematically connected with the receiver. 2. The sampler according to claim 1, wherein the working member is made with filter cavities and guiding recesses. 3. Autonomous sampler according to paragraphs. 1 and 2, about tl and h and you and the fact that the working body is equipped with shutters freely suspended in the lower part of the filtration cavities. 4. An autonomous sampler according to claim 1, characterized in that the receiver is equipped with a mesh cover and a spring and is made in the form of a box without a bottom, preferably rectangular in shape. 5. Autonomous sampler on nn 1 and 4, which means that the total surface area of the twin hinged covers is equal to the cross-sectional area of the receiver. 6. AVTON4 sampler 5 on PP. 1, 4 and 5, about tl and h and y. u and with the fact that the mechanism of discharge of ballast weights B1 is kinematically separated from the receiver. 0 Sources of information taken into account in the examination 1. Oceanographic encyclopedia. L., 1974, p. 291. 2. Authors certificate of the USSR 566162, cl. G 01 N 1/10, 1976.