CN109060424B - Method for monitoring concentration of suspended matters in construction sea area by utilizing sampling device - Google Patents
Method for monitoring concentration of suspended matters in construction sea area by utilizing sampling device Download PDFInfo
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- CN109060424B CN109060424B CN201811010790.6A CN201811010790A CN109060424B CN 109060424 B CN109060424 B CN 109060424B CN 201811010790 A CN201811010790 A CN 201811010790A CN 109060424 B CN109060424 B CN 109060424B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N2001/1006—Dispersed solids
- G01N2001/1012—Suspensions
- G01N2001/1025—Liquid suspensions; Slurries; Mud; Sludge
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Abstract
The invention discloses a method for monitoring the concentration of suspended matters in a construction sea area by using a sampling device, and aims to overcome the defect that the sampling operation of seawater at a certain depth position cannot be realized when the concentration of suspended matters in the seawater is monitored and sampled in the construction sea area. When the construction sea area dredges the operation, regularly carry out the sea water sample and monitor suspended solid concentration, the length of the sea water degree of depth adjustment reference column of monitoring as required earlier, insert the reference column submarine again and fix, the surface of water is exposed to the sampling tube upper end, mechanical tongs that the construction operation was used touches push pedal or connecting rod in carrying out the work progress, perhaps the rivers that mechanical tongs work progress produced impact on the push pedal upper surface, drive the connecting rod clockwise rotation, it punctures the water barrier film to stab the needle upwards to remove, the sea water flows into the section of intaking from the inlet side hole, in retaining section and the sampling tube, upwards stimulate the sampling tube after a period of time, if find the sea water in the sampling tube, directly can accomplish the sample with whole sampling device pull out the sea water.
Description
Technical Field
The invention relates to a seawater monitoring and sampling method, in particular to a method for monitoring the concentration of suspended matters in a construction sea area by using a sampling device.
Background
At present, in construction sea area operation in-process, need regularly carry out the sample detection to the suspended solid concentration of this region sea water, traditional sea water sample mode is directly to throw the sample bucket into the sea water, and the stay cord is pulling the sample bucket and is carrying out the sea water sample, and the sample bucket will be mentioned the sample bucket after filling with the sea water. The sampling mode is convenient to operate, but the water layer where the sampled seawater is located is uncertain, can be the water surface position and can also be the underwater position, the seawater sampling limitation is large, and the concentration of suspended matters in a certain depth position in the seawater cannot be accurately monitored.
Disclosure of Invention
The invention overcomes the defect that the sampling operation of seawater at a certain depth position cannot be realized when the concentration of suspended solids in the seawater is monitored and sampled in the construction sea area, and provides the method for monitoring the concentration of the suspended solids in the construction sea area by using the sampling device.
In order to solve the technical problems, the invention adopts the following technical scheme: a method for monitoring the concentration of suspended solids in a construction sea area by using a sampling device, wherein the sampling device comprises a positioning column capable of stretching up and down, and a sampling tube detachably mounted on the positioning column, the lower end of the sampling tube is provided with a U-shaped water storage section, the water storage section is connected with a vertical linear water inlet section, the opening of the water inlet section faces downwards, the opening end of the water inlet section is connected with a limiting cover, the inner wall of the water inlet section is provided with a mounting convex ring, a water-stop membrane is hermetically connected onto the mounting convex ring, a plurality of water inlet side holes are formed in the side wall of the water inlet section between the water-stop membrane and the limiting cover, a connecting rod is hinged to one position of the water inlet side hole, the front end of the connecting rod is connected with a stabbing needle, the rear end; when seawater sampling is carried out in a construction sea area, the length of a positioning column is adjusted firstly, then the positioning column is inserted into the water bottom to be fixed, the upper end of a sampling tube is exposed out of the water surface, a mechanical gripper for construction operation touches a push plate or a connecting rod in the construction process, or water flow generated in the construction process of the mechanical gripper impacts the upper surface of the push plate to drive the connecting rod to rotate clockwise, a pricking needle moves upwards to prick a water-proof membrane, seawater flows into a water inlet section, a water storage section and the sampling tube from a water inlet side hole, the sampling tube is pulled upwards after a period of time, and if the seawater is taken in the sampling tube, the whole sampling device is directly pulled out of the seawater to finish sampling; if no seawater is found in the sampling pipe, the sampling pipe is pushed downwards to continue sampling until the sampling pipe is found to take seawater.
When dredging operation is carried out in a construction sea area, seawater sampling is carried out periodically to monitor the concentration of suspended matters, the length of a positioning column is adjusted according to the depth of the seawater to be monitored, then the positioning column is inserted into the water bottom to be fixed, the upper end of a sampling pipe is exposed out of the water surface, a mechanical gripper for construction operation touches a push plate or a connecting rod in the construction process, or water flow generated in the construction process of the mechanical gripper impacts the upper surface of the push plate to drive the connecting rod to rotate clockwise, a pricking needle moves upwards to prick a water-proof film, seawater flows into a water inlet section, a water storage section and the sampling pipe from a water inlet side hole, the sampling pipe is pulled upwards after a period of time, and if the seawater is taken in the sampling pipe, the whole sampling device is directly pulled out of the seawater; if no seawater is found in the sampling pipe, the sampling pipe is pushed downwards to continue sampling until the sampling pipe is found to take seawater. Because the sampling tube lower extreme has set up the retaining section of U-shaped, the sea water of the in-process upper strata that the sampling tube rises can not get into the sampling tube again, only can be the sea water in the sampling tube outwards flows out. After the sampling pipe rises away from the water surface, the sampled seawater can be left in the U-shaped water storage section. The sampling operation can be realized by means of the mechanical gripper, the seawater sampling is carried out while the mechanical gripper is in construction, and the detection accuracy is ensured. The method for monitoring the concentration of the suspended matters in the construction sea area by using the sampling device can realize the sampling operation of the seawater at a certain depth position of the construction sea area, and is convenient for accurately monitoring the concentration of the suspended matters at the certain depth position of the construction sea area.
Preferably, the water-resisting film is connected with a stay wire, and the stay wire penetrates through the water inlet section, the water storage section and the interior of the sampling pipe and extends out of the upper end of the sampling pipe; and pulling the sampling tube upwards after a period of time, if the seawater is not taken from the sampling tube, pushing the sampling tube downwards to continue sampling, directly pulling the upper end of the stay wire, and breaking the waterproof membrane by the stay wire to sample the seawater. This way it is ensured that the sampling tube is able to sample seawater.
As the preferred, the block of taper is connected to the sampling tube upper end, and sampling tube upper end outward flange is equipped with the chamfer, and the chamfer closely laminates on the block inner wall, is equipped with a plurality of air vent on the lateral wall that the sampling tube is close to the upper end, and the air vent sets up from inside to outside slope down, and the block lower extreme is less than the air vent position. The arrangement of the cover cap can prevent seawater from splashing into the sampling tube from the upper end of the sampling tube to influence the monitoring accuracy. The vent hole is obliquely arranged, so that seawater can be prevented from splashing into the sampling tube through the vent hole.
Preferably, the lower surface of the mounting convex ring is fixedly connected with a positioning ring, and the water-stop film is connected between the mounting convex ring and the positioning ring. The water-stop film is installed tightly and reliably.
Preferably, the positioning column comprises a fixing rod, a lower telescopic pipe and an upper telescopic pipe, the lower telescopic pipe is movably sleeved on the fixing rod, the upper telescopic pipe is movably sleeved on the lower telescopic pipe, the lower end of the upper telescopic pipe and the lower end of the lower telescopic pipe are both connected with locking screws, and the end parts of the two locking screws are respectively abutted to the outer walls of the lower telescopic pipe and the fixing rod. The length of the positioning column formed by sleeving the fixed rod, the lower telescopic pipe and the upper telescopic pipe together is convenient to adjust, and the positioning column is locked reliably by the locking screw.
Preferably, the outer wall of the sampling tube is provided with scale marks. The setting of scale mark is convenient for directly perceivedly understand the degree of depth that the sampling tube inserted the sea water.
Preferably, the sampling tube is movably sleeved with a mounting seat, the mounting seat is detachably mounted on the positioning column through a screw, a fastening screw is connected to the mounting seat, and the end of the fastening screw abuts against the outer wall of the sampling tube. The sampling tube can realize the altitude mixture control from top to bottom on the mount pad, is convenient for to the sample of different water layers sea water.
Compared with the prior art, the invention has the beneficial effects that: the method for monitoring the concentration of the suspended matters in the construction sea area by using the sampling device can realize the sampling operation of the seawater at a certain depth position in the construction sea area, and is convenient for accurately monitoring the concentration of the suspended matters at the certain depth position in the construction sea area.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural view of the position of the open end of the water inlet section of the present invention;
FIG. 3 is a schematic view of the connection structure of the sampling tube and the cap of the present invention;
in the figure: 1. the water storage device comprises a positioning column, 2, a sampling tube, 3, a water storage section, 4, a water inlet section, 5, a limiting cover, 6, an installation convex ring, 7, a water-stop membrane, 8, a water inlet side hole, 9, a connecting rod, 10, a poking needle, 11, a push plate, 12, a positioning spring, 13, a stay wire, 14, a cover cap, 15, a chamfer, 16, an air vent, 17, a positioning ring, 18, a fixing rod, 19, a lower telescopic tube, 20, an upper telescopic tube, 21, a locking screw, 22, a scale mark, 23, an installation seat, 24, a fastening screw, 25, a threaded sleeve, 26 and a connecting rib.
Detailed Description
The technical scheme of the invention is further described in detail by the following specific embodiments in combination with the attached drawings:
example (b): a method for monitoring the concentration of suspended solids in a construction sea area by utilizing a sampling device (see attached figures 1 to 3) comprises a positioning column 1 capable of stretching out and drawing back up and down, and a sampling tube 2 detachably mounted on the positioning column, wherein scale marks 22 are arranged on the outer wall of the sampling tube, a mounting seat 23 is movably sleeved on the sampling tube and detachably mounted on the positioning column through screws, a fastening screw 24 is connected to the mounting seat, and the end part of the fastening screw is abutted to the outer wall of the sampling tube. The lower end of the sampling tube is provided with a U-shaped water storage section 3, the water storage section is connected with a vertical linear water inlet section 4, the opening of the water inlet section faces downwards, the opening end of the water inlet section is higher than the lowest position of the water storage section, the opening end of the water inlet section is connected with a limiting cover 5, the inner wall of the water inlet section is provided with an installation convex ring 6, a water-stop film 7 is hermetically connected on the installation convex ring, a plurality of water inlet side holes 8 are formed between the water-stop film and the limiting cover on the side wall of the water inlet section, one water inlet side hole is hinged with a connecting rod 9, the front end of the connecting rod is connected with a stabbing needle 10, the rear end of the connecting rod extends out of the water inlet; when seawater sampling is carried out in a construction sea area, the length of the positioning column is adjusted, then the positioning column is inserted into the water bottom for fixing, the upper end of the sampling tube is exposed out of the water surface, and in the process that the water inlet section moves downwards in the water, the push plate is jacked upwards by water flow, so that the front end of the connecting rod moves downwards, and the stabbing needle cannot touch the water-resisting film; the mechanical gripper for construction operation touches the push plate or the connecting rod in the construction process, or water flow generated in the construction process of the mechanical gripper impacts the upper surface of the push plate to drive the connecting rod to rotate clockwise, the poking needle moves upwards to poke the waterproof membrane, seawater flows into the water inlet section, the water storage section and the sampling pipe from the water inlet side hole, the sampling pipe is pulled upwards after a period of time, and if the seawater is taken in the sampling pipe, the whole sampling device is directly pulled out of the seawater to finish sampling; if no seawater is found in the sampling pipe, the sampling pipe is pushed downwards to continue sampling until the sampling pipe is found to take seawater.
The water-resisting film is connected with a stay wire 13 which passes through the water inlet section, the water storage section and the interior of the sampling pipe and extends out of the upper end of the sampling pipe; and pulling the sampling tube upwards after a period of time, if the seawater is not taken from the sampling tube, pushing the sampling tube downwards to continue sampling, directly pulling the upper end of the stay wire, and breaking the waterproof membrane by the stay wire to sample the seawater.
The conical cover cap 14 is connected to the sampling tube upper end, and sampling tube upper end outward flange is equipped with chamfer 15, and the chamfer closely laminates on the block inner wall, is equipped with a plurality of air vent 16 on the lateral wall of sampling tube near the upper end, and the air vent sets up from inside to outside slope down, and the block lower extreme is less than the air vent position. A threaded sleeve 25 is arranged between the cap and the sampling tube, the threaded sleeve is in threaded connection with the outer wall of the sampling tube, and a plurality of connecting ribs 26 are uniformly distributed and connected between the outer wall of the threaded sleeve and the inner wall of the cap. The lower surface of the mounting convex ring is fixedly connected with a positioning ring 17, and the waterproof membrane is connected between the mounting convex ring and the positioning ring. The positioning column comprises a fixing rod 18, a lower telescopic pipe 19 and an upper telescopic pipe 20, wherein the lower telescopic pipe is movably sleeved on the fixing rod, the upper telescopic pipe is movably sleeved on the lower telescopic pipe, the lower ends of the upper telescopic pipe and the lower telescopic pipe are both connected with locking screws 21, and the end parts of the two locking screws are respectively abutted to the outer walls of the lower telescopic pipe and the fixing rod. The mount pad is connected on last telescopic tube outer wall.
Because the sampling tube lower extreme has set up the retaining section of U-shaped, the sea water of the in-process upper strata that the sampling tube rises can not get into the sampling tube again, only can be the sea water in the sampling tube outwards flows out. After the sampling pipe rises away from the water surface, the sampled seawater can be left in the U-shaped water storage section. The sampling operation can be realized by means of the mechanical gripper, the seawater sampling is carried out while the mechanical gripper is in construction, and the detection accuracy is ensured. The reference column can stretch out and draw back from top to bottom, and the sampling tube can realize altitude mixture control from top to bottom on the mount pad moreover, is convenient for to the sample of different water layer sea waters. The method for monitoring the concentration of the suspended matters in the construction sea area by using the sampling device can realize the sampling operation of the seawater at a certain depth position of the construction sea area, and is convenient for accurately monitoring the concentration of the suspended matters at the certain depth position of the construction sea area.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the invention as set forth in the claims.
Claims (5)
1. A method for monitoring the concentration of suspended solids in a construction sea area by using a sampling device is characterized in that the sampling device comprises a positioning column capable of stretching up and down, and a sampling tube detachably mounted on the positioning column, wherein a U-shaped water storage section is arranged at the lower end of the sampling tube, a vertical linear water inlet section is connected to the water storage section, the opening of the water inlet section faces downwards, the opening end of the water inlet section is connected with a limiting cover, a mounting convex ring is arranged on the inner wall of the water inlet section, a water-resisting film is hermetically connected to the mounting convex ring, a plurality of water inlet side holes are formed in the side wall of the water inlet section between the water-resisting film and the limiting cover, a connecting rod is hinged to the position of one water inlet side hole, the front end of the connecting rod is connected with a poking needle, the rear; when seawater sampling is carried out in a construction sea area, the length of a positioning column is adjusted firstly, then the positioning column is inserted into the water bottom to be fixed, the upper end of a sampling tube is exposed out of the water surface, a mechanical gripper for construction operation touches a push plate or a connecting rod in the construction process, or water flow generated in the construction process of the mechanical gripper impacts the upper surface of the push plate to drive the connecting rod to rotate clockwise, a pricking needle moves upwards to prick a water-proof membrane, seawater flows into a water inlet section, a water storage section and the sampling tube from a water inlet side hole, the sampling tube is pulled upwards after a period of time, and if the seawater is taken in the sampling tube, the whole sampling device is directly pulled out of the seawater to finish sampling; if the seawater is not taken from the sampling pipe, the sampling pipe is pushed downwards to continue sampling until the seawater is taken from the sampling pipe; the water-resisting film is connected with a stay wire, and the stay wire penetrates through the water inlet section, the water storage section and the sampling pipe and extends out of the upper end of the sampling pipe; pulling the sampling tube upwards after a period of time, if the sampling tube is found not to take seawater, pushing the sampling tube downwards to continue sampling, directly pulling the upper end of a stay wire, and pulling the stay wire to break the waterproof membrane for seawater sampling; the nut cap of taper is connected to the sampling tube upper end, and sampling tube upper end outward flange is equipped with the chamfer, and the chamfer closely laminates on the nut cap inner wall, is equipped with a plurality of air vent on the lateral wall that the sampling tube is close to the upper end, and the air vent sets up from inside to outside slope down, and the nut cap lower extreme is less than the air vent position.
2. The method according to claim 1, wherein a positioning ring is fastened to the lower surface of the mounting collar, and the water-stop membrane is connected between the mounting collar and the positioning ring.
3. The method for monitoring the concentration of suspended solids in construction waters by using the sampling device as claimed in claim 1 or 2, wherein the positioning column comprises a fixed rod, a lower telescopic pipe and an upper telescopic pipe, the lower telescopic pipe is movably sleeved on the fixed rod, the upper telescopic pipe is movably sleeved on the lower telescopic pipe, the lower ends of the upper telescopic pipe and the lower telescopic pipe are both connected with locking screws, and the end parts of the two locking screws are respectively abutted against the outer walls of the lower telescopic pipe and the fixed rod.
4. The method for monitoring the concentration of suspended matters in the construction sea area by using the sampling device as claimed in claim 1 or 2, wherein the outer wall of the sampling tube is provided with scale marks.
5. The method for monitoring the concentration of suspended matters in construction waters by using the sampling device as claimed in claim 1 or 2, wherein the sampling tube is movably sleeved with a mounting seat, the mounting seat is detachably mounted on the positioning column through a screw, a fastening screw is connected to the mounting seat, and the end part of the fastening screw abuts against the outer wall of the sampling tube.
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| CN201811010790.6A CN109060424B (en) | 2018-08-31 | 2018-08-31 | Method for monitoring concentration of suspended matters in construction sea area by utilizing sampling device |
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| CN201811010790.6A CN109060424B (en) | 2018-08-31 | 2018-08-31 | Method for monitoring concentration of suspended matters in construction sea area by utilizing sampling device |
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| CN109060424B true CN109060424B (en) | 2021-01-15 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109752216B (en) * | 2019-01-25 | 2021-07-16 | 中国市政工程中南设计研究总院有限公司 | Undercurrent constructed wetland water sample collection system |
| CN110426240B (en) * | 2019-06-17 | 2022-02-11 | 浙江省海洋水产研究所 | Device and method for taking out underwater sludge and attachments |
| CN114323779B (en) * | 2022-01-11 | 2024-06-28 | 河北省地矿局第八地质大队(河北省海洋地质资源调查中心) | Method and device for sampling and monitoring suspended matter concentration in construction sea area |
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