CN109374357B - Sample collecting device for marine pollutants - Google Patents
Sample collecting device for marine pollutants Download PDFInfo
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- CN109374357B CN109374357B CN201811369603.3A CN201811369603A CN109374357B CN 109374357 B CN109374357 B CN 109374357B CN 201811369603 A CN201811369603 A CN 201811369603A CN 109374357 B CN109374357 B CN 109374357B
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- guide pipe
- water guide
- vertical water
- sampling
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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
- G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
Abstract
The invention relates to the field of seawater detection equipment, in particular to a sample collecting device for marine pollutants. The sampling device comprises a pull rope, a sampling pipe, a collecting box floating under the water surface and a floating seat floating on the water surface, wherein the pull rope is fixed on the sea bottom, the upper end of the pull rope is fixed at the lower end of the collecting box, a water gap is formed in the collecting box, and a valve is arranged on the water gap; the collecting box is provided with a vertical water guide pipe communicated with the inside of the collecting box, the upper end of the vertical water guide pipe extends out of the water surface, the vertical water guide pipe is arranged on the floating seat in a sliding mode, the sampling pipe is arranged on the outer side wall of the vertical water guide pipe and communicated with the vertical water guide pipe, and the sampling pipe is located on the part, extending out of the water surface, of the vertical water guide pipe. The invention has the beneficial effects that: can gather the sample comprehensive consideration in the target area scope, convenient operation and degree of accuracy are high.
Description
Technical Field
The invention relates to the field of seawater detection equipment, in particular to a sample collecting device for marine pollutants.
Background
Marine aquaculture is an important way to solve the sharp contradiction between the increasing demand of human beings on aquatic products and the depletion of marine biological resources. However, the deterioration of marine ecology directly affects the development of aquaculture industry and raises the problem of food safety of aquatic products. Especially emerging pollutants discovered in recent years, such as endocrine disruptors, polycyclic aromatic hydrocarbon substances and the like, have negative effects on the ecological environment and marine organisms and directly threaten the sustainable utilization of marine fishery resources, and a corresponding collection device is required to collect seawater in a culture area for research and analysis.
Chinese patent is granted No. CN 206270103U, is the grant announcement day 2017.06.20, and the name is "sea water collection system for ocean science research", discloses a sea water collection system for ocean science research, including stay cord, pouring weight, box, rotatory scraper blade, filter screen, link, cylinder, drive fish ware, splint and connecting block, box internally mounted has the filter screen, and rotatory scraper blade is installed to the filter screen lower extreme, and rotatory scraper blade sets up inside the box, and the stay cord symmetry is fixed at the box lower extreme, and the welding has the pouring weight under the stay cord. However, the mobility of seawater is very high due to the influence of airflow, and at this time, the accuracy of data is ensured by comprehensively considering the seawater samples in one region, the acquisition device needs to be frequently thrown in, and the acquisition device can only acquire samples at fixed points, so that the accuracy is not high.
Disclosure of Invention
The invention aims to overcome the defects that the sample collected by the collecting device in the prior art can not consider the influence of seawater fluidity on pollutants, the collecting device needs to be frequently put in and only can collect the sample of a fixed point, and the accuracy is not high, and provides the sample collecting device for the marine pollutants, which is fixed point type, can comprehensively consider the sample in a target area range and has high accuracy.
In order to achieve the purpose, the invention adopts the following technical scheme:
a sample collecting device for marine pollutants comprises a pull rope, a sampling pipe, a collecting box floating under the water surface and a floating seat floating on the water surface, wherein the pull rope is fixed on the sea bottom, the upper end of the pull rope is fixed at the lower end of the collecting box, a water gap is formed in the collecting box, and a valve is arranged on the water gap; the collecting box is provided with a vertical water guide pipe communicated with the inside of the collecting box, the upper end of the vertical water guide pipe extends out of the water surface, the vertical water guide pipe is arranged on the floating seat in a sliding mode, the sampling pipe is arranged on the outer side wall of the vertical water guide pipe and communicated with the vertical water guide pipe, and the sampling pipe is located on the part, extending out of the water surface, of the vertical water guide pipe.
The sampling box is fixed on the seabed of a target area by the pull rope, the density of the sampling box is smaller than that of seawater, the sampling box can float in water, the valve is opened, the seawater enters the sampling box from the water and further enters the vertical water guide pipe, when wind waves exist, the floating seat moves along with the wind waves, the pull rope inclines, the height of the vertical guide pipe is reduced, the sampling pipe is immersed in the water, the seawater enters the sampling pipe from the vertical water guide pipe, the position of the floating seat changes along with the change of the wind direction, therefore, the sampling pipe can comprehensively take samples in the range of the target area, the accuracy is higher, in addition, the existing sampling device needs to be placed into the sea during sampling and needs to be frequently positioned, the sampling device needs to be taken out from the sea during analysis, the whole process needs to be frequently put in, and is too complicated, and is particularly difficult to operate when the wind waves are large, but the sampling device only needs, and during subsequent analysis, only the sampling tube on the sea surface needs to be taken down.
Preferably, the upper end of the vertical water guide pipe is provided with a protruding support column, and an umbrella-shaped rain blocking cover is fixed on the support column. The rain-proof cover prevents rainwater from entering the sampling tube and influencing the components of the sample.
Preferably, the upper end of the vertical water guide pipe is higher than the lower end of the rain cover. The rain cover surrounds the upper end of the vertical water guide pipe, the rain shielding effect is enhanced, the protective effect is also achieved on the stormy waves on the sea surface, and the accuracy of the collected samples is guaranteed.
Preferably, the sampling tube is connected with the vertical water guide pipe in a sealing mode through a sealing ring. Preventing the intrusion of external seawater.
Preferably, the collection box is funnel-shaped, the water gap is formed in the side wall of the collection box, and seawater obliquely upwards enters the collection box through the water gap. The collection box is hopper-shaped and is favorable to its self stability, and the arrangement mode at mouth of a river makes ascending rivers in the collection box for the sea water is changeed and is entered into in the sampling tube.
Preferably, the bottom of the collection box is provided with a stabilizing seat, and the weight of the stabilizing seat is greater than that of the collection box. Further promote the stability of collection box, prevent that the collection box from excessively inclining.
The invention has the beneficial effects that: (1) when wind waves exist, the floating seat moves along with the wind waves, the pull rope inclines, the height of the vertical guide pipe is reduced, the sampling pipe is immersed in water, seawater enters the sampling pipe from the vertical water guide pipe, and the position of the floating seat changes along with the change of the wind direction, so that the sampling pipe can collect comprehensive consideration of samples in a target area range, and the accuracy is higher; (2) the existing sampling device needs to be placed into the sea and needs to be frequently positioned during sampling, the existing sampling device needs to be taken out of the sea during analysis, the whole process needs to be frequently put in, the existing sampling device is too complicated, and the existing sampling device is particularly difficult to operate when stormy waves are large.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the present invention at the point of the collection box;
fig. 3 is a schematic view of the structure of the rain cover of the present invention.
In the figure: the device comprises a pull rope 1, a sampling pipe 2, a collection box 3, a water gap 31, a stabilizing seat 32, a floating seat 4, a vertical water guide pipe 5, a sealing ring 6, a support column 7 and a rain shielding cover 8.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
As shown in fig. 1 to 3, a sample collecting device for marine pollutants comprises a pull rope 1, a sampling tube 2, a collecting box 3 floating under the water surface and a floating seat 4 floating on the water surface, wherein the pull rope is fixed on the sea bottom, the upper end of the pull rope is fixed at the lower end of the collecting box, a water gap 31 is arranged on the collecting box, and a valve is arranged on the water gap. The collection box is funnel-shaped, the water gap is formed in the side wall of the collection box, and seawater obliquely upwards enters the collection box through the water gap. The bottom of the collection box is provided with a stabilizing base 32, the weight of which is greater than that of the collection box.
Be equipped with on the vasculum with the inside vertical aqueduct 5 that communicates of vasculum, the surface of water is stretched out to the upper end of vertical aqueduct, and vertical aqueduct slides and sets up on the floating seat, and the sampling tube is established on the lateral wall of vertical aqueduct and is communicated with vertical aqueduct, and the sampling tube passes through sealing washer 6 and vertical aqueduct sealing connection, prevents that outside sea water from invading. The sampling tube is positioned on the part of the vertical water guide pipe extending out of the water surface. The upper end of vertical aqueduct is equipped with the support column 7 that stretches out, be fixed with the rain cover 8 that is umbelliform on the support column, the upper end of vertical aqueduct is higher than the lower extreme that keeps off the rain cover, it surrounds the cover to the upper end of vertical aqueduct to keep off the rain cover, prevent that the rainwater from entering into the sampling tube, influence the composition of sample, also have the protective effect to the stormy waves on the sea simultaneously, ensure the accuracy of the sample of gathering, furthermore, the external diameter of rain cover is great, can also play the effect of restriction vertical aqueduct and the inseparable of floating seat.
When the sampling device is used, the sampling box is fixed on the seabed of a target area by the pull rope, the density of the sampling box is smaller than that of seawater, the sampling box can float in water, the valve is opened, the seawater enters the sampling box from the water and further enters the vertical water guide pipe, when wind waves exist, the floating seat moves along with the wind waves, the pull rope inclines, the height of the vertical guide pipe descends, the sampling pipe is immersed in the water, the seawater enters the sampling pipe from the vertical water guide pipe, and the position of the floating seat changes along with the change of the wind direction, so that the sampling pipe can comprehensively consider samples in the range of the target area. The invention has the advantages that: the sampling tube can collect the comprehensive consideration of the sample in the target area range, the accuracy is higher, the sampling device only needs to be installed once, and only the sampling tube on the sea surface needs to be taken down during subsequent analysis, so that the operation is convenient.
Claims (5)
1. A sample collection device for marine pollutants, characterized by comprising
The sampling device comprises a pull rope, a sampling pipe, a collection box floating under the water surface and a floating seat floating on the water surface, wherein the pull rope is fixed on the sea bottom, the upper end of the pull rope is fixed at the lower end of the collection box, a water gap is formed in the collection box, and a valve is arranged on the water gap;
the collecting box is provided with a vertical water guide pipe communicated with the inside of the collecting box, the upper end of the vertical water guide pipe extends out of the water surface, the vertical water guide pipe is arranged on the floating seat in a sliding manner, the sampling pipe is arranged on the outer side wall of the vertical water guide pipe and is communicated with the vertical water guide pipe, and the sampling pipe is positioned on the part, extending out of the water surface, of the vertical water guide pipe;
the upper end of the vertical water guide pipe is provided with a protruded support column, and an umbrella-shaped rain cover is fixed on the support column; the rain cover has larger outer diameter and can play a role in preventing the vertical water guide pipe from being separated from the floating seat;
the density of the collection box is less than that of the seawater, so that the collection box can float in the water;
when wind waves exist, the floating seat moves along with the wind waves, the pull rope inclines, the height of the vertical water guide pipe descends, the sampling pipe is immersed in water, and seawater enters the sampling pipe from the vertical water guide pipe.
2. The sample collection device for marine pollutants as in claim 1, wherein the upper end of the vertical water conduit is higher than the lower end of the rain shield.
3. The device as claimed in claim 1, wherein the sampling tube is connected with the vertical water conduit via a sealing ring.
4. The apparatus of claim 1, wherein the collection chamber is funnel shaped, the port is disposed on a sidewall of the collection chamber, and the seawater is introduced into the collection chamber through the port in an inclined upward direction.
5. The sample collection device for marine contaminants of claim 4, wherein the bottom of the collection chamber comprises a stabilizing base, the stabilizing base having a weight greater than the weight of the collection chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811369603.3A CN109374357B (en) | 2018-11-16 | 2018-11-16 | Sample collecting device for marine pollutants |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811369603.3A CN109374357B (en) | 2018-11-16 | 2018-11-16 | Sample collecting device for marine pollutants |
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| CN109374357A CN109374357A (en) | 2019-02-22 |
| CN109374357B true CN109374357B (en) | 2021-04-20 |
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| CN201811369603.3A Active CN109374357B (en) | 2018-11-16 | 2018-11-16 | Sample collecting device for marine pollutants |
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| CN113447294B (en) * | 2021-06-04 | 2022-11-08 | 广东海洋大学 | Be applied to automatic harvesting device of marine pollutant sampling |
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