RU154264U1 - WATER SAMPLING DEVICE - Google Patents

Abstract

A device for sampling water, including a vessel connected by a flexible link with a lifting mechanism, characterized in that it contains a cylindrical inlet made of stainless steel, the lower part of which is made in the form of a glass, and the upper part is a narrowing neck with an air outlet, two side holes for filling the water sample, two holes for attaching carabiners, a hand-operated winch with a telescopic tripod, a metal-carrying cable and two carabiners.

Description

The utility model relates to the field of sampling and can be used in sampling water from wells, wells and under-ice reservoirs for subsequent chemical, microbiological and geochemical analyzes to a depth of 100 m.

The known Ruttner bathometer, which is designed for sampling water samples from lakes, wells, wells, etc. for subsequent chemical and microbiological analyzes. [Ruttner's Batometer [Electronic resource]. -Access mode: volta / spb.ru / content / view / 44/42 /. - Zagl. from the screen]. The device is equipped with an internal thermometer for recording temperature.

Technical details:

Height mm 200, 300, 400, 500 The volume of the sample taken, l 1,2; 2.1; 2.8; 3,5 Pipe diameter mm 95 Sampler weight, no more, kg 3 Sampling Depth, m up to 30

The disadvantages of this device:

- large diameter for sampling water from wells;

- shallow sampling depth.

Known Patalas bathometer, consisting of a one-liter flask (pipe) with upper and lower inserts [Patalas bathometer [Electronic resource]. - Access mode: . - Zagl. from the screen]. On the inserts placed covers, the surfaces of which are ground with the surfaces of the inserts. Water sampling is carried out by lowering the bathometer on a cable (rope). At the moment of movement downward, the covers of the bathometer rise and a column of water comes through the pipe. At the required depth, the movement stops and the water inside the pipe is locked spontaneously by falling caps. The selected sample rises to the surface and can be removed through covers or a fitting screwed into the pipe. If necessary, the nozzle can be replaced by a plug. Specifications:

Water sample volume, l 1,0

Overall dimensions, mm

diameter 90 length 370 Weight kg 4.0

The disadvantages of this device:

- large diameter for sampling water from wells;

- shallow sampling depth.

Known hydrological bathometer, designed for sampling water from lakes, wells, wells for subsequent chemical and microbiological analyzes [Hydrological bathometer [Electronic resource]. - Access mode: 1.. 2. - Zagl. from the screen]. The device is equipped with an internal thermometer for recording temperature. The sampler works without a messenger. When immersed, the valves of the device are in the open state, when you start lifting from the desired depth, the valves of the sampler automatically close. All internal surfaces of the bathometer in contact with the sample are made of inert materials.

Technical details:

Sample volume, l one; 2; 3; 5 Sampler Weight, kg one Weight of weight, kg 1-3 Range of measured temperatures, ° C from 0 to plus 40 Sampling Depth, m up to 70

The disadvantage of this device is:

- the complexity of the design of the sampler;

- insufficiently reliable sampling technology;

- low quality of the sample taken;

- large diameter bathometer for sampling water from wells. Known sampler (copyright certificate SU No. 924362, IPC 7E21B 49/08, publ. BI No. 16 of 04/30/1982), including a housing, a receiving chamber, spring-loaded upper and lower valves, a sealed working chamber, while it is equipped with two pistons rigidly connected by rods with valves and installed in a working chamber filled with gas at atmospheric pressure, and the receiving chamber is filled with compressed gas, the lower piston having a channel for communicating the working chamber with the external environment at the upper position of the piston and the piston stroke limiter, space filled with a sleeve fixed shear cotter on the stem.

The disadvantages of this device:

- the complexity of the design, due to the presence of a large number of nodes and technically complex parts;

- such a structural element as a check is cut off only at a certain pressure, which must be achieved, otherwise the sampler will not work, and this significantly reduces the reliability of its operation;

- the presence of a large number of technologically complex parts requiring high precision manufacturing, which leads to an increase in the cost of the design of the device as a whole.

A known sampler (copyright certificate SU No. 1461899, IPC 7E21B 49/08, publ. BI No. 8 of 02.28.1989), comprising a housing with a suspension and a receiving chamber with valves, a valve drive mechanism with an emphasis in contact with the walls of the well, and rod with a protrusion, spring-loaded relative to the housing and interacting with the valves of the receiving chamber. The sampler is equipped with a ball lock made in the form of a stepped sleeve spring-loaded relative to the housing, inside of which there is a separator with balls, rigidly fixed to the upper part of the housing and to the suspension, and the emphasis is made of elastic material in the form of a hollow cone, with its vertex pointing down and fixed on the upper part step sleeve, while the hollow cone is made with the possibility of contact of its outer surface with the walls of the well and turning the inner surface out, and the rod is placed inside the sep Rathore and mounted for fixing relative to the body in the lower position in contact with the protrusion of the separator beads rod and the inner surface of the small-diameter stepped bushing. The disadvantages of this device are:

- the complexity of the design, due to the large number of nodes and parts;

- at large alternating loads, the spring elements can break and fail, and therefore the reliability of the sampler as a whole is reduced;

- Assembly of the sampler is possible only in a specialized workshop, which causes additional costs.

Known water intake, which is a metal casing, closed on top with a cork. A disk is attached to the gasket below, giving the water intake a stable position. A steel cable is attached to the same gasket, passing out through the cork. When sampling water from a reservoir, the water intake disk is first lowered to the desired depth, holding the cork and the casing in the hand, and then the casing and cork are successively lowered. The filled water intake rises from the reservoir and the water sample is poured into a jar (Set of sampling devices "KPO-1". Passport 4207 PS. - 1988. - 16 s).

Technical details:

Sample volume, l 0.5 Intake Weight kg 3.4 Sampling Depth, m up to 30

Overall dimensions, mm

disc diameter 115 height 196.5

The disadvantages of this device are:

- large diameter of the intake for sampling water from wells;

- shallow sampling depth;

- a recess designed to drain a water sample in the upper part of the body, when rising from the well, it touches the walls of the well and collects rust in the body of the intake.

This water intake is taken as a prototype.

The problem the utility model aims to solve is to increase the reliability of the device and the reliability of the sample taken directly from the observation wells, increase the depth of sampling and reduce the diameter of the device, simplify design and maintenance.

The technical result that can be obtained by implementing the utility model is to increase the reliability of the device in operation and the reliability of the sample taken.

The essence of the utility model lies in the fact that the device for sampling water, including a vessel connected by a flexible link with a lifting mechanism, contains a cylindrical inlet made of stainless steel, the lower part of which is made in the form of a glass, and the upper part is a tapering neck with an opening for air outlet, two side openings for filling the water sample, two openings for attaching carabiners, a winch with a manual drive, a telescopic tripod, a load-carrying cable and two carabiners.

The implementation of the upper part of the water intake in the form of a tapering neck and supplying it with two holes for filling with water and two holes for air outlet allows to increase the reliability of the sample due to the fact that:

- sampling is carried out during the entire time of immersion of the water intake;

- full immersion of the water intake in the aquifer is carried out without additional weighting;

- ingress of foreign impurities from the walls of the well pipes into the sample taken is excluded;

- the device allows you to adjust the speed of the descent and rise of the intake.

The reliability of the claimed device of the proposed design is manifested in the fact that the descent of the water intake corresponds to the fact of filling its inner surface and sampling water.

A device for sampling water from observation wells is illustrated by drawings 1 and 2.

The device consists of two parts: from a water intake for sampling water and a winch for lowering and raising the water intake.

The water intake includes a cylindrical body 7 made of stainless steel with a thickness of at least 3 mm, the lower part of which is made in the form of a glass, and the upper part is a tapering neck with an opening 2 for air outlet, two side openings 3 for filling the water sample and two openings 4 for fastening the carabiners of the load-carrying cable 5 during the launching and lifting operations.

A winch 9 with a manual drive 10 contains a telescopic tripod 7, a platform 8 for attaching a winch with a coil 11, a ratchet wheel 12, a dog 13 mounted on the shaft of the winch 9, a metal carrying cable 14, a support 75 with a sliding bearing for reliable and stable rotation of the coil shaft , two carbines 16, a clamp 17 for attaching the winch 9 to the platform 8.

A telescopic tripod 7 is installed at the required height above the barrel of the observation well 18 and a winch 9 with a manual drive 10 and a coil 11 is attached to the platform 8 with a clamp 17. At the end of the load-carrying cable 14, a water intake is suspended by two carbines 16. To lower the intake, the manual drive 10 of the winch 9 is slightly retracted in the upward direction and the dog 13 is released from the hook 13 from the ratchet wheel 12. The ratchet wheel 12 is released and the winch shaft 9 is able to rotate in the downward direction (counterclockwise) under the influence of the weight of the intake. Then the water intake is lowered on a metal cable into the barrel of the observation well 18. Having reached a predetermined depth, the descent of the device is stopped for the time required to fill the water sample. A water sample through the side openings fills the internal cavity of the device. Then the selected water sample rises. When the manual drive 10 is rotated in the upward direction (clockwise), the teeth of the ratchet wheel 12 do not interfere with the rotation of the coil 11 together with the ratchet wheel 12. The dog 13 engages with the ratchet wheel 12, delaying its movement and, consequently, the movement of the winch 9 in the side of the descent of the cargo, without obstructing the movement in the direction of lifting. After rising to the surface of the intake, a water sample is transferred through a side opening into a glass container and transferred to specialists for research.

Technical details:

Intake Height, mm 280 The volume of the sample taken, l one Cup diameter, mm 58 Intake weight, not more than, kg 1,5 Sampling Depth, m up to 100 Tripod Height, m from 0.6 to 1.5

The device was tested during water sampling from observation wells with a depth of 40 to 90 m during environmental monitoring. The test results showed that the device is suitable for sampling water from wells with a diameter of more than 60 mm, as well as from wells and under-ice reservoirs. The reliability of the device is established by the trouble-free operation during the entire period of the field expedition during the environmental monitoring of groundwater.

Thus, the model’s advantage over the well-known ones is the simplicity of manufacture, low cost of the product, compact design is convenient to use and maintain, the ability to use in various studies, the efficiency in working on different types of observation wells, the ability to ensure reliable sampling of groundwater.

Claims (1)

A device for sampling water, including a vessel connected by a flexible link with a lifting mechanism, characterized in that it contains a cylindrical inlet made of stainless steel, the lower part of which is made in the form of a glass, and the upper part is a narrowing neck with an air outlet, two side holes for filling a water sample, two holes for attaching carabiners, a hand winch with a telescopic tripod, a metal-carrying cable and two carabiners.

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