CN211179122U

CN211179122U - Deep sea water body sequence sampling device with through-flow structure

Info

Publication number: CN211179122U
Application number: CN201921665083.0U
Authority: CN
Inventors: 黄豪彩; 陈道华; 吴怡平; 邓义楠; 王章霖
Original assignee: Zhejiang University ZJU; Guangzhou Marine Geological Survey
Current assignee: Zhejiang University ZJU; Guangzhou Marine Geological Survey
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-08-04
Anticipated expiration: 2029-09-30

Abstract

The utility model discloses a deep sea water body sequence sampling device with through-flow structure belongs to deep sea water sampling equipment technical field, including outer frame, a plurality of independent setting water sampler in the outer frame and the controller that is used for controlling the water sampling process, water sampler includes the sampling chamber and sets up entry ball valve and the export ball valve at the sampling chamber both ends respectively, the entry ball valve of all samplers is through first pipe connection to the sampling nozzle, the export ball valve of all samplers is through second pipe connection to the sampling pump, be equipped with the first switch module that carries out the control in proper order to the entry ball valve of all samplers in the outer frame, and carry out the second switch module that controls in proper order to the export ball valve of all samplers.

Description

Deep sea water body sequence sampling device with through-flow structure

Technical Field

The utility model relates to a deep sea water sampling equipment technical field, specifically speaking relates to a deep sea water sequence sampling device with through-flow type structure.

Background

In recent years, exploration, research and development of the ocean have been increasingly emphasized by researchers and countries. Deep sea hydrothermal fluid, cold spring, offshore bottom water sample and other deep sea water samples have important research significance in the fields of geology, chemical engineering, medical treatment, biology and the like. One of the important means of studying these water samples is sampling, i.e., taking the sample at the sample site and retrieving it for analysis in a laboratory. The method is used for collecting a deep sea water sample, measuring various physical and chemical indexes of the deep sea water sample, and knowing the composition and the state of the deep sea water sample, and is very important in the environmental exploration of ocean mineral resources and the detection of seabed abnormal conditions.

The quality of sampling, storage and transfer has an important influence on the reliability and accuracy of the analysis result of the sampled sample. In particular, it is important to improve the sampling purity, that is, to reduce the mixing rate of seawater other than the target sample. In addition, the air tightness is an important index of the sampling device, reflects the retention capacity of the sampling device for gas components in a sample, and has important significance for some researches such as tracer gas research of natural gas hydrate.

Chinese patent publication No. CN105842471A discloses a pressure-maintaining transfer device for high-pressure fluid samples, which mainly comprises a culture cylinder, a sampling cylinder, a culture cylinder constant-pressure module, a middle-part pressurizing and additive inputting module, and a sampling cylinder driving module; the device can realize the pressure-maintaining transfer device of the high-pressure fluid sample after deep-sea water sampling so as to carry out the later culture experiment on the transferred water sample.

Chinese patent publication No. CN1789955A discloses a controllable deep-sea water sampler, which comprises a frame, a water sampler group, a driving transmission unit and a control unit, wherein the water sampler group is composed of a plurality of independent water sampler units, each water sampler unit comprises a piston-type water sampler and a link mechanism-type limit switch, the driving transmission unit comprises a motor arranged on the frame and a transmission device connected with the motor and the water sampler unit, the transmission device is chain-driven, a collision block for controlling the limit switch to act is arranged on the chain, and the control unit comprises a control center on a deck, an underwater control center arranged on the frame and a hall switch element.

In the prior art, multiple samplings of different places or different time periods of the same place can not be acquired according to needs in the process of diving in sequence.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a deep sea water sequence sampling device with through-flow formula structure has higher sampling purity, and higher sampling reliability has airtight holding power to the sample, compact structure, and has the sequence sampling ability.

In order to achieve the purpose, the utility model provides a deep sea water body sequence sampling device with a through-flow structure, which comprises an outer frame, a plurality of water collectors independently arranged in the outer frame and a controller used for controlling the water collecting process; the water sampler comprises a sampling cavity, and an inlet ball valve and an outlet ball valve which are respectively arranged at two ends of the sampling cavity, wherein the inlet ball valves of all the samplers are connected to a sampling nozzle through a first pipeline, and the outlet ball valves of all the samplers are connected to a sampling pump through a second pipeline; and a first switch assembly for sequentially controlling the inlet ball valves of all the samplers and a second switch assembly for sequentially controlling the outlet ball valves of all the samplers are arranged in the outer frame.

According to the technical scheme, the water sampler is mounted on an outer frame according to the quantity and the type of samples to be sampled, the type of the water sampler can be set according to the sampling requirement, the whole device is carried on an ROV (remote operated vehicle) or an L ander (ocean lander), all inlet ball valves are adjusted to be in an open state before entering water, all outlet ball valves are in a closed state and sequentially enter different sampling positions, meanwhile, the corresponding inlet ball valves are sequentially controlled to be closed, the outlet ball valves are controlled to be opened and closed first, and in the process, a water sample is pumped into a sampling cavity through a sampling pump.

Preferably, the first switch component comprises an inlet dial arranged on the inlet ball valve and an inlet deflector rod mechanism driving the inlet dial to rotate; the second switch assembly comprises an outlet dial arranged on the outlet ball valve and an outlet deflector rod mechanism driving the outlet dial to rotate.

Preferably, each water sampler is annularly arranged in the outer frame, the inlet drive plate and the outlet drive plate are both arranged towards the annular center, and a driving motor for synchronously controlling the inlet deflector rod mechanism and the outlet deflector rod mechanism of the same sampler is arranged in the outer frame.

The outlet ball valve of the inlet ball valve is synchronously driven by one driving motor, so that the sequence trigger mechanism can be simplified, the weight and the volume are reduced, and the transportation, distribution and recovery costs of the sampling device are reduced.

Preferably, the inlet deflector rod mechanism is a straight rod which can rotate around the annular center, and the inlet dial plate is provided with a notch for the straight rod to deflect. One end of the straight rod can be connected with the output end of the driving motor through the chain transmission mechanism, and the other end of the straight rod is used for shifting the entrance drive plate. The dial is turned through the turning of the straight rod, so that the inlet ball valve in an open state is closed.

Preferably, the outlet deflector rod mechanism is a double-fork rod capable of rotating around the annular center, and the outlet drive plate is provided with two notches for the double-fork ends of the double-fork rod to sequentially deflect. The end part of the double-fork rod can be connected with the output end of the driving motor through a chain transmission mechanism, and the double-fork end is used for stirring the outlet driving plate. The dial is toggled to rotate through the rotation of the double fork rod, so that the outlet ball valve in a closed state is opened and then closed.

In order to facilitate the installation of the sampler, as the preferred, be equipped with the last backup pad and the bottom suspension fagging that are used for supporting the hydrophore on the outer frame, go up backup pad and bottom suspension fagging and pass through fixed buckle and fix entry ball valve and export ball valve respectively. Specifically, fixed buckle can set up to the bolt form, goes up to be equipped with the through-hole that supplies the sample thief to pass on the backup pad, and the bolt can erect and fix the entry ball valve on the through-hole. According to needs, the lower supporting plate can also be provided with corresponding through holes, but the through holes are smaller than those of the upper supporting plate, and only the outlet ball valve needs to pass through the through holes.

Preferably, a filter assembly is disposed within the sampling cavity.

In order to obtain multiple samples of the same water sample, the sampling cavity preferably comprises a plurality of independent cavities communicated through pipelines, and adjacent cavities are separated through two middle ball valves. Before sampling, the middle ball valve is always in an open state until sampling is completed, the middle ball valve is screwed after the sampler is taken out, and pipelines of the two middle ball valves between the adjacent cavities are disconnected, so that multiple samples of the same water sample are obtained. The number of independent cavities can be specifically set according to the requirement.

Preferably, the conduit between the two intermediate ball valves is provided with an accumulator assembly.

The arrangement of the water sampler in the four forms can be freely selected or freely matched according to the specific acquisition requirements.

Preferably, a temperature sensor in communication connection with a controller is fixed on the main body of the sampling nozzle, and the controller controls whether to sample according to the temperature difference. When submarine hydrothermal solution or other water samples with temperature difference with surrounding seawater are subjected to temperature detection, the temperature sensor can detect the temperature near the sampling nozzle in real time, and if the temperature difference is large, the purity is high, and sampling can be performed.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a deep sea water sequence sampling device with through-flow formula structure can flow the sampling for a long time through the sampling passageway of through-flow formula to make the sampling of filtering enrichment certain special material to carry out, also can reduce the cross contamination problem between the blind spot raffinate that probably exists in the sampling passageway and the different sampling passageways.

2. The sampling channel forms in various forms can adapt to different adoption requirements, including large-capacity sampling, enrichment sampling, double-sample sampling, pressure-maintaining sampling and the like.

3. Through special trigger mechanism, realized the effect of a plurality of sampling channel switching of mechanism simultaneous control, saved space and whole weight.

Drawings

Fig. 1 is a schematic overall structure diagram of a deep sea water body sequence sampling device according to an embodiment of the present invention;

fig. 2 is a top view of an outer frame according to an embodiment of the present invention;

fig. 3 is a bottom view of the outer frame of the embodiment of the present invention;

fig. 4 is a schematic structural diagram of a sampler according to an embodiment of the present invention, in which (a) is a schematic structural diagram of a first type sampler, (b) is a schematic structural diagram of a second type sampler, (c) is a schematic structural diagram of a third type sampler, and (d) is a schematic structural diagram of a fourth type sampler;

fig. 5 is a schematic view of an interaction principle of an inlet dial and an inlet shift lever mechanism and a corresponding opening and closing condition of an inlet ball valve according to an embodiment of the present invention;

fig. 6 is a schematic view of an interaction principle of the outlet ball valve and the outlet shift lever mechanism and a corresponding opening and closing condition of the outlet ball valve according to the embodiment of the present invention;

fig. 7 is a schematic diagram of a general sampling according to an embodiment of the present invention;

fig. 8 is a schematic diagram of the separation of two adjacent independent sampling cavities of the three-type sampler and the four-type sampler according to the embodiment of the present invention.

The individual reference symbols in the figures are: 11. the system comprises an outer frame, 12, an upper supporting block, 13, a lower supporting block, 14, a fixing buckle, 211, an inlet connecting piece, 212, an outlet connecting piece, 213, a small-sized pipe connecting piece, 221, an inlet ball valve, 222, an outlet ball valve, 223, an intermediate ball valve, 224, an inlet dial, 225, an outlet dial, 231, a type I sampling cavity, 232, a type II sampling cavity, 233, a first sampling cavity, 234, a second sampling cavity, 24, a filter assembly, 251, an accumulator cylinder, 252, a piston, 31, a driving motor, 32, an inlet chain transmission mechanism, 33, an outlet chain transmission mechanism, 34, an inlet driving rod mechanism, 35, an outlet driving rod mechanism, 41, a sampling nozzle, 42, a first pipeline, 43, a sampling nozzle pipe connecting piece, 44, a temperature sensor, 51, a sampling pump, 52, a second pipeline, 61, an electronic component cabin, 62, a microcontroller, 63 and a communication system.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described below with reference to the following embodiments and accompanying drawings.

Examples

Referring to fig. 1 to 8, the deep sea water sequence sampling device of the present embodiment includes an outer frame 11, a plurality of water collectors independently disposed in the outer frame 11, and a microcontroller 62 for controlling a water collecting process, and four water collectors are disposed in the present embodiment. All the water collectors are annularly arranged in the outer frame 11.

The water sampler comprises a sampling cavity and an inlet ball valve 221 and an outlet ball valve 222 which are respectively arranged at two ends of the sampling cavity, wherein the inlet ball valves 221 of all the samplers are connected to the sampling nozzle 41 through a first pipeline 42, and the outlet ball valves 222 of all the samplers are connected to the sampling pump 51 through a second pipeline 52. The inside of the outer frame 11 is provided with a first switch assembly for sequentially controlling the inlet ball valves 221 of all the samplers, and a second switch assembly for sequentially controlling the outlet ball valves 222 of all the samplers.

An upper supporting block 12 and a lower supporting block 13 are arranged in the outer frame 11, an inlet ball valve 221 of the water sampler is fixed on the upper supporting block 12 through a fixing buckle 14, and an outlet ball valve 222 of the water sampler is fixed on the lower supporting block through the fixing buckle 14, so that the water sampler is installed on the supporting frame.

Referring to fig. 4, the water sampler includes four types, i.e., a first type to a fourth type:

the installation sequence of the first type water sampler from the inlet to the outlet is respectively a small pipe connector 213, an inlet ball valve 221, a first type sampling cavity 231, an outlet ball valve 222 and the small pipe connector 213, and the parts are connected by a pressure-resistant pipeline according to requirements.

The two-type water sampler is installed from the inlet to the outlet in sequence of the small pipe connector 213, the inlet ball valve 221, the two-type sampling cavity 232, the outlet ball valve 222 and the small pipe connector 213, and the parts are connected by a pressure-resistant pipeline as required. Install filter assembly 24 in type two sampling cavity 232, filter assembly 24 contains the installing support and constitutes with the filter screen that has the micropore, and the micropore diameter can be different as required, and the installing support can block on sampling cavity inner wall, and the installing support has middle intermediate layer, and the filter screen is installed in the middle intermediate layer of installing support.

The three-type water sampler is installed from an inlet to an outlet in sequence by a small pipe connector 213, an inlet ball valve 221, a first sampling cavity 233, two middle ball valves 223, a second sampling cavity 234, an outlet ball valve 222 and the small pipe connector 213, and the middle parts of the components are connected by a pressure-resistant pipeline according to needs.

The four-type water sampler is installed from the inlet to the outlet in the order of the small pipe connector 213, the inlet ball valve 221, the first sampling cavity 233, the two middle ball valves 223, the second sampling cavity 234, the outlet ball valve 222 and the small pipe connector 213. An energy accumulator assembly is arranged in a pipeline between the two middle ball valves 223, the energy accumulator assembly comprises an energy accumulator cylinder 251 and a piston 252 arranged in the energy accumulator cylinder 251, the cavity below the piston 252 is a liquid charging cavity, the cavity above the piston 252 is an energy storage cavity, and an air charging interface is reserved on one side of a compression cavity. The parts are connected by pressure-resistant pipes as required.

All the small pipe connectors 213 at the inlet of the water sampler are connected to the inlet connector 211 through flexible pipes and are connected to the sampling nozzle 41 through the first pipe 42, the inlet connector 211 is provided with a plurality of outlets, the number of the outlets is the same as that of the water sampler, and each outlet is connected with a flexible pipe and is connected with the small pipe connector 213 at the inlet of the sampling channel. A sampling nozzle pipe connector 43 is arranged between the first pipeline 42 and the sampling nozzle 41, a temperature sensor 44 is fixed beside the sampling nozzle 41, and the temperature sensor 44 is connected with a microcontroller 62. The temperature sensor 44 functions to: when submarine hydrothermal solution or other water samples with temperature difference with surrounding seawater are subjected to real-time detection, the temperature near the sampling nozzle 41 is detected, if the temperature difference is large, the purity is high, and sampling can be performed.

The small pipe connectors 213 at the outlets of all the water collectors are connected to the outlet connector 212 through flexible pipes and connected to the sampling pump 51 through the second pipe 52, and the outlet connector 212 has the same structure as the inlet connector 211. The outlet of the sampling pump 51 is communicated with the outside seawater through a flexible pipeline. Meanwhile, the sampling pump 51 is electrically connected to the microcontroller 62.

Referring to fig. 1 to 6, an inlet dial 224 and an outlet dial 225 are mounted on the inlet ball valve 221 and the outlet ball valve 222, respectively. The driver plate is installed on the switch of ball valve, and all sets up towards annular center, can control the switching of ball valve through rotating the driver plate.

The ball valve driving device comprises a driving motor 31, an inlet chain transmission mechanism 32, an outlet chain transmission mechanism 33, an inlet deflector rod mechanism 34 and an outlet deflector rod mechanism 35. The driving motor 31 is mounted on the outer frame 11 by means of a snap or a bolt and is electrically connected to the microcontroller 62, and the driving motor 31 has two outputs connected to the inputs of the inlet chain drive 32 and the outlet chain drive 33, respectively. The output of the inlet chain drive 32 is connected to and rotates the inlet toggle mechanism 224 and the output of the outlet chain drive 33 is connected to and rotates the outlet toggle mechanism 35. The inlet toggle mechanism 34 has one toggle, the outlet toggle mechanism 35 has two toggles, a notch is provided in the inlet dial, and two notches are provided in the outlet dial.

Referring to fig. 5 and 6, movement of the inlet and

outlet toggle mechanisms

34, 35 will contact and rotate the inlet and outlet dials 224, 225, respectively, from state one to state five.

In state one, the inlet lever mechanism 34 is not in contact with the inlet dial 224, the first lever of the outlet lever mechanism 35 is brought into contact with the outlet dial 225, the inlet ball valve 221 is fully opened, and the outlet ball valve 222 is fully closed.

In the second state, the inlet lever mechanism 34 is not in contact with the inlet dial 224, the first lever of the outlet lever mechanism 35 rotates the outlet dial 225 by 45 °, the inlet ball valve 221 is in the fully open state, and the outlet ball valve 222 is in the half open state.

In state three, the inlet toggle mechanism 34 begins to contact the inlet dial 224, the first toggle of the outlet toggle mechanism 35 rotates the outlet dial 45 degrees again, the second toggle of the outlet toggle mechanism 35 begins to contact the outlet dial, the inlet ball valve 221 is in a fully open state, and the outlet ball valve 222 is in a fully open state.

In state four, the inlet toggle mechanism 34 rotates the inlet dial 224 by 45 °, the second toggle of the outlet toggle mechanism 35 rotates the outlet dial 225 by 45 ° again, the inlet ball valve 221 is in a half-open state, and the outlet ball valve 222 is in a half-open state.

In the fifth state, the inlet lever mechanism 34 rotates the inlet dial 224 45 ° again, the second lever of the outlet lever mechanism 35 rotates the outlet dial 225 45 ° again, the inlet ball valve 221 is fully closed, and the outlet ball valve 222 is fully closed.

The microcontroller 62 is mounted in the electronics compartment 61, and the communications system 63 is also mounted in the electronics compartment 61. The microcontroller 62 can receive data from the temperature sensor 44 and can control the operation of the drive motor 31 and the sampling pump 51. Microcontroller 62 may transmit data to and receive commands from an operator via communication system 63.

Referring to fig. 5 to 8, the working process of the present invention is as follows:

1. before entering water, deionized pure water is pre-filled in the water sampler, so that the huge pressure of external seawater in the submergence process is resisted. Setting the inlet ball valve 221 and the outlet ball valve 222 to initial positions (state one): the inlet ball valve 221 is opened and the outlet ball valve 222 is closed. The intermediate ball valve 223 of the three-type and four-type water collectors is opened. The energy accumulator cylinder 251 of the four-type water sampler needs to be charged, and the gas is charged through a reserved gas charging interface at one side of the energy storage cavity, wherein the gas pressure is generally 10% of the expected in-situ pressure of the sample.

The installation direction is set according to the density difference between the liquid to be sampled and the pre-filled pure water, if the density of the liquid to be sampled is greater than that of the pre-filled pure water, the inlet is arranged below, otherwise, the inlet is arranged above, and the arrangement has the advantages that the heavy liquid enters the light liquid from bottom to top or the light liquid enters the heavy liquid from top to bottom, so that the mixing between the two liquids is reduced, the sampling efficiency is improved, and the time required by sampling is reduced.

2. And carrying the sampling device on a launching platform. After receiving the control signal through the communication system 63, the microcontroller 62 in the electronic component chamber 61 controls the driving motor 31 to rotate, the driving motor 31 drives the inlet shift lever 34 and the outlet shift lever 35 through the inlet chain transmission mechanism 32 and the outlet chain transmission mechanism 33, respectively, and the state is switched from the second state to the third state, that is, the inlet ball valve 221 and the outlet ball valve 222 are both opened, at this time, the sampling pump 51 starts to work continuously for a period of time, so that the sample enters the sampling cavity of the sampling channel, the pre-filled pure water is fully replaced, and the residual liquid in the dead zone which may exist is flushed away. And then the driving motor 31 continues to rotate, so that the sampling channel is converted from the state three to the state five through the state four, and at the moment, the inlet ball valve 221 and the outlet ball valve 222 of the water sampler are closed. And other water collectors repeat the two stages in sequence, so that the sampling process and the closing of each water collector are realized.

3. After sampling of all the water collectors is completed, the samples are stored in the sampling cavities of all the sampling channels, and the inlet ball valves 221 and the outlet ball valves 222 of all the water collectors are in a closed state and can be transferred along with the return of the platform carried by the sampling device to the land. The three-type and four-type water collectors can close the two middle ball valves 223, so that one sampling cavity is divided into two independent sampling cavities and analyzed respectively (see fig. 8).

Claims

1. A deep sea water body sequence sampling device with a through-flow structure is characterized by comprising an outer frame, a plurality of water collectors independently arranged in the outer frame and a controller used for controlling the water collecting process;

the water sampler comprises a sampling cavity, and an inlet ball valve and an outlet ball valve which are respectively arranged at two ends of the sampling cavity, wherein the inlet ball valves of all samplers are connected to a sampling nozzle through a first pipeline, and the outlet ball valves of all samplers are connected to a sampling pump through a second pipeline;

and a first switch assembly for sequentially controlling the inlet ball valves of all the samplers and a second switch assembly for sequentially controlling the outlet ball valves of all the samplers are arranged in the outer frame.

2. The deep sea water sequencing sampling device with flow-through architecture of claim 1, wherein said first switch assembly comprises an inlet dial mounted on said inlet ball valve and an inlet toggle mechanism for driving said inlet dial to rotate; the second switch component comprises an outlet dial arranged on the outlet ball valve and an outlet shift lever mechanism driving the outlet dial to rotate.

3. The deep sea water sequencing sampling device with through-flow structure of claim 2, wherein each water sampler is arranged in the outer frame in a ring shape, the inlet dial plate and the outlet dial plate are both arranged towards the center of the ring, and the outer frame is internally provided with a driving motor for synchronously controlling the inlet deflector rod mechanism and the outlet deflector rod mechanism of the same sampler.

4. The deep sea water sequence sampling device with through-flow structure of claim 3, wherein said inlet lever mechanism is a straight rod rotatable around the center of the ring, and said inlet dial has a notch for said straight rod to move.

5. The deep sea water sequence sampling device with through-flow structure of claim 3, wherein said outlet lever mechanism is a double-fork lever rotatable around a circular center, and said outlet dial has two notches for the double-fork ends of said double-fork lever to sequentially shift.

6. The deep sea water body sequence sampling device with through-flow structure of claim 1, wherein the outer frame is provided with an upper support plate and a lower support plate for supporting the water sampler, and the upper support plate and the lower support plate are respectively fixed with the inlet ball valve and the outlet ball valve through fixing buckles.

7. The deep sea water sequence sampling device with through-flow structure of claim 1, wherein said sampling cavity is provided with a filter assembly.

8. The deep sea water sequencing sampling device with through-flow structure of claim 1, wherein said sampling cavity comprises a plurality of independent cavities connected by pipes, and adjacent cavities are separated by two middle ball valves.

9. The deep sea water sequence sampling device with through-flow structure of claim 8, wherein the pipe between the two middle ball valves is provided with an accumulator assembly.

10. The deep sea water sequence sampling device with a through-flow structure of claim 1, wherein a temperature sensor in communication connection with the controller is fixed on the body of the sampling nozzle, and the controller controls whether to sample according to the temperature difference.