CN107063764B - Suction type water sample collector and unit suction bottom water sample collection system - Google Patents

Abstract

The invention provides a suction-type water sample collector and a unit suction-type bottom water sample collection system, which belong to the technical field of marine monitoring. The main mechanism of the water sample collection system is a suction-type water sample collector, including a water sample cup and a collector seat , collector cover, valve stem, spring, diaphragm, and valve seat. The diaphragm is pressed between the collector seat and the collector cover to form upper and lower cavities. The lower chamber communicates with the water sample cup screwed on the collector seat through the water inlet hole on the collector seat, and communicates with the water sample collection area through the controllable gap between the valve stem and the valve seat. Pass through the collector cover, diaphragm, collector seat and valve seat in turn from top to bottom. A spring is installed between the upper end of the valve stem and the collector cover. The spring presses down on the valve stem to seal the valve seat; pull the valve stem and diaphragm Moving up, the gas in the water sample cup is sucked into the lower cavity, and the water in the water sample collection area is sucked into the water sample cup to complete the water sample collection. The invention avoids the problem that water samples are easily mixed, expands the collection range of water samples, and improves the sampling quality of bottom water samples.

Description

Suction type water sample collector and unit suction bottom water sample collection system

technical field

The invention relates to a marine monitoring technology, in particular to a suction type water sample collector and a unit suction type bottom water sample collection system.

Background technique

Existing sea bottom water sampling equipment mainly contains pull-type simple water sampling device, knock-off type water sampling device, card cover type water sampling device and pump type water sampling device.

The pull-type simple water collector is a simple water collector. The sampling bottle is settled to the required depth, and the stopper is opened by lifting the rope. After the water is filled with the sampling bottle, the sampling is completed. It has a simple structure and is easy to carry, but It cannot automatically and regularly sample, the efficiency is low, and it is not suitable for deep water sampling.

Both the knock-off type water collector and the cap-type water collector settle the sampling bottle to the required depth, open the bottle cap with the help of the firing mechanism, and close the sampling bottle cap to complete sampling after the water is filled with the sampling bottle. Its structure is simple. It can be sampled in deeper water layers, but its sampling efficiency is low and the sampling stability is poor.

The pump-type water sampling device also uses boats and other tools to drive to a specific sampling point, sinks the water sampling pipe to the specified depth, and uses a pump to draw water samples. It can be sampled in deeper water layers, but due to the reasons along the pipeline, Water samples are easily confused and the accuracy is poor.

Contents of the invention

The technical task of the present invention is to provide a suction type water sample collector and a unit suction type bottom water sample collection system aiming at the deficiencies of the prior art. The purpose is to solve the problems of shallow sampling depth, low efficiency, easy confusion of water samples, poor accuracy and difficult control of existing bottom water sampling equipment, and improve the sampling quality and sampling efficiency of bottom water samples.

The technical solution adopted by the present invention to solve its technical problems is:

A suction-type water sample collector, comprising a water sample cup, a collector seat, a collector cover, a valve stem, a spring, a diaphragm, and a valve seat, and the diaphragm is compressed between the collector seat and the collector cover to form a There are two upper and lower chambers, the upper chamber communicates with the water sample collection area through the through hole of the collector cover, the lower chamber communicates with the water sample cup screwed on the collector seat through the water inlet hole on the collector seat, and communicates with the valve stem and valve The controllable gap between the seats communicates with the water sample collection area. The valve stem passes through the collector cover, diaphragm, collector seat and valve seat in turn from top to bottom. A spring is installed between the upper end of the valve stem and the collector cover. The valve stem is pressed down by the spring to seal the valve seat; the valve stem and the diaphragm are pulled up, the gas in the water sample cup is sucked into the lower chamber, and the water in the water sample collection area is sucked into the water sample cup to complete the water sample collection.

Further, a sealing ring is provided between the valve stem and the valve seat.

Further, a gasket is provided between the water sample cup and the collector seat.

A unit suction type bottom water sample collection system, comprising a suction type water sample collector, an electric push rod, a hanging cage and a steel wire rope, the suction type water sample collector and the electric push rod are fixed on the hanging cage and the electric push rod The water sample collection of the suction-type water sample collector is automatically and accurately controlled; the steel wire rope is connected with the hanging cage to control the collection depth of the hanging cage and the suction-type water sample collector.

The suction-type water sample collector includes a water sample cup, a collector seat, a collector cover, a valve stem, a spring, a diaphragm, and a valve seat, and the diaphragm is compressed between the collector seat and the collector cover to form an upper and lower Two chambers, the upper chamber communicates with the water sample collection area through the through hole of the collector cover, the lower chamber communicates with the water sample cup screwed on the collector seat through the water inlet hole on the collector seat, and communicates with the water sample cup screwed on the collector seat through the valve stem and valve seat. The controllable gap between them communicates with the water sample collection area. The valve stem passes through the collector cover, diaphragm, collector seat and valve seat in turn from top to bottom. A spring is installed between the upper end of the valve stem and the collector cover. Press down the valve stem to seal the valve seat; the electric push rod moves up to pull the valve stem and the diaphragm to move up, the gas in the water sample cup is absorbed into the lower chamber, and the water in the water sample collection area is sucked into the water sample cup to complete the water sampling process. sample collection.

Further, the electric push rod is hinged with a plurality of suction-type water sample collectors through a coupling rod and a coupling pin to form a water sample collection unit.

Further, several water sample collection units are evenly distributed on the hanging cage.

Preferably, the hanging cage is a square structure on which 8 water sample collection units are evenly distributed.

Compared with the prior art, the suction type water sample collector and the unit suction bottom water sample collection system of the present invention have the following beneficial effects:

1) In the suction-type water sample collector of the present invention, the water sample cup is screwed on the water sample collector seat, the upper chamber of the diaphragm communicates with the water sample collection area through the through hole of the collector cover, and the lower chamber communicates with the water sample collection area through the inlet of the collector seat. The water hole communicates with the water sample cup, and communicates with the water sample collection area through the valve stem, sealing ring and valve seat; when the moving end of the electric push rod moves down to the maximum position, the suction water sample collector will It is in the closed state under the action. When the electric push rod overcomes the resultant force of the spring and the water pressure, it pulls the diaphragms and valve stems of multiple suction water sample collectors to move upward, and the gas in the water sample cup passes through the water sample collection in the direction of arrow B. The through hole on the seat is sucked into the lower chamber of the diaphragm, and at the same time, the water in the water sample collection area is sucked in the direction of arrow A and flows into the water sample cup. Lift the cage and unscrew the water sample cup to complete the water sample collection. . The problem of easy mixing of water samples is avoided, the collection range of water samples is expanded, and the sampling quality of bottom water samples is improved.

2) In the unit suction bottom water sample collection system of the present invention, the suction water sample collectors are respectively fixed on the hanging cage with bolts, and the sampling depth of the suction water sample collector is controlled by a steel wire rope as required; Multiple suction water sample collectors are hinged together, and then hinged with the moving end of the electric push rod to form a unit. Multiple units can be installed on a cage according to needs, and the suction water sample collector of each unit is controlled regularly Water sample collection, simple structure, easy to use. It is conducive to automatic and precise control, and improves the sampling efficiency of bottom water samples.

Description of drawings

Accompanying drawing 1 is the structural representation of suction type water sample collector;

Accompanying drawing 2 is the top view structure diagram of Fig. 1;

Accompanying drawing 3 is the structural representation of unit suction type bottom water sample collection system;

Accompanying drawing 4 is the top view structural diagram of Fig. 3.

In the figure, 1. Suction type water sample collector, 2. Connecting rod, 3. Connecting pin, 4. Electric push rod, 5. Ear seat, 6. Hanging cage, 7. Steel wire rope, 8. Water sample cup, 9. Gasket, 10, collector seat, 11, bolt, 12, collector cover, 13, valve stem, 14, spring, 15, round nut, 16, compression pad, 17, diaphragm, 18, sealing ring, 19 , Valve seat.

Detailed ways

A suction type water sample collector and unit suction type bottom water sample collection system of the present invention will be described in detail below in conjunction with accompanying drawings 1-4.

As shown in accompanying drawings 1 and 2, a suction type water sample collector 1 includes a water sample cup 8, a gasket 9, a collector seat 10, a bolt 11, a collector cover 12, a valve stem 13, a spring 14, a circular Nut 15, compression pad 16, diaphragm 17, sealing ring 18, valve seat 19, described diaphragm 17 is compressed between collector seat 10 and collector cover 12 to form upper and lower cavities, and the upper chamber passes through collector cover The through hole of 12 communicates with the water sample collection area, and the lower chamber communicates with the water sample cup 8 screwed on the collector seat 10 through the water inlet hole on the collector seat 10, and the water sample cup 8 and the collector seat 10 are arranged There is a sealing gasket 9, and communicates with the water sample collection area through the controllable gap between the valve stem 13 and the valve seat 19. A sealing ring 18 is arranged between the valve stem 13 and the valve seat 19, and the valve stem 13 is sequentially arranged from top to bottom. Through the collector cover 12, the diaphragm 17, the collector seat 10 and the valve seat 19, the diaphragm 17 is clamped by the valve stem 13 and the round nut 15 through the compression pad 16, the upper end of the valve stem 13 and the collector cover 12 A spring 14 is installed in between, and the spring 14 adopts a cylindrical spring, and the spring 14 presses down the valve stem 13 to realize the sealing of the valve seat 19; when the valve stem 13 and the diaphragm 17 are pulled up, the gas in the water sample cup 8 is sucked into the lower cavity, and the water The water in the sample collection area is drawn into the water sample cup 8 to complete the water sample collection.

As shown in accompanying drawing 3, a kind of unit suction type bottom water sample collection system comprises suction type water sample collector 1, electric push rod 4, hanging cage 6 and steel wire rope 7, and described suction type water sample collector 1 and electric The push rods 4 are all fixed on the cage 6 and the electric push rod 4 is used to automatically and accurately control the water sample collection of the suction water sample collector 1; the steel wire rope 7 is connected with the cage 6 to control the cage 6 and the suction water sample collector. The collection depth of the sample collector 1.

The suction-type water sample collector 1 includes a water sample cup 8, a collector seat 10, a collector cover 12, a valve stem 13, a spring 14, a diaphragm 17, and a valve seat 19, and the diaphragm 17 is pressed against the collector. Two chambers are formed between the seat 10 and the collector cover 12. The upper chamber communicates with the water sample collection area through the through hole of the collector cover 12. The upper water sample cup 8 communicates, and communicates with the water sample collection area through the controllable gap between the valve stem 13 and the valve seat 19, and the valve stem 13 passes through the collector cover 12, the diaphragm 17, and the collection device successively from top to bottom. The device seat 10 and the valve seat 19, the spring 14 is installed between the upper end of the valve stem 13 and the collector cover 12, the spring 14 presses down the valve stem 13 to realize the sealing of the valve seat 19; The sheet 17 moves up, the gas in the water sample cup 8 is absorbed into the lower cavity, and the water in the water sample collection area is sucked in the water sample cup 8 to complete the water sample collection.

The electric push rod 4 is hinged with a plurality of suction-type water sample collectors 1 through the coupling rod 2 and the coupling pin 3 to form a water sample collection unit.

As shown in FIG. 4 , the hanging cage 6 is a square structure on which 8 water sample collection units are evenly distributed.

Claims (5)

1. The utility model provides a suction type water sample collector, includes water sample cup (8), collector seat (10), collector lid (12), valve rod (13), spring (14), diaphragm (17), disk seat (19), diaphragm (17) compress tightly and form two upper and lower chambeies between collector seat (10) and collector lid (12), upper chamber communicates with each other with the water sample collection district through the through-hole of collector lid (12), lower chamber communicates with each other with water sample cup (8) of screwing up on collector seat (10) through the inlet opening on collector seat (10), and communicate with each other with the water sample collection district through controllable clearance between valve rod (13) and disk seat (19), valve rod (13) pass collector lid (12), diaphragm (17), collector seat (10) and disk seat (19) from top to bottom in proper order, spring (14) are equipped with between valve rod (13) upper end and collector lid (12), spring (14) pushes down valve rod (13) and realizes sealing of disk seat (19); when the movable end of the electric push rod moves downwards to the maximum position, the suction type water sample collector is in a closed state under the action of a spring and water pressure, when the electric push rod overcomes the resultant force of the spring and the water pressure, the valve rod (13) and the diaphragm (17) are pulled to move upwards, gas in the water sample cup (8) is sucked into the lower cavity, and water in the water sample collecting area is sucked into the water sample cup (8) to complete water sample collection;

a sealing ring (18) is arranged between the valve rod (13) and the valve seat (19);

a sealing gasket (9) is arranged between the water sample cup (8) and the collector seat (10).

2. A unit suction type bottom water sample collection system adopting the suction type water sample collector as claimed in claim 1 comprises the suction type water sample collector (1), an electric push rod (4), a suspension cage (6) and a steel wire rope (7), and is characterized in that:

the suction type water sample collector (1) and the electric push rod (4) are both fixed on the hanging cage (6) and the electric push rod (4) is used for automatically and accurately controlling the water sample collection of the suction type water sample collector (1);

the steel wire rope (7) is connected with the hanging cage (6) to control the collection depth of the hanging cage (6) and the suction type water sample collector (1).

3. A unit suction type bottom water sample collection system according to claim 2, characterized in that the electric push rod (4) is hinged with a plurality of suction type water sample collectors (1) through a connecting rod (2) and a connecting pin (3) to form a water sample collection unit.

4. A unit suction type bottom water sample collection system according to claim 3, characterized in that a plurality of water sample collection units are uniformly distributed on the hanging cage (6).

5. The unit suction type bottom water sample collection system according to claim 4, wherein the hanging cage (6) is of a square structure, and 8 water sample collection units are uniformly distributed on the hanging cage.

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