RU133189U1 - OBSERVING SELF-WATERING WELL HEAD - Google Patents

Abstract

The head of the observation self-flowing well for fresh underground water deposits, containing a valve, a tap for sampling water, characterized in that the tip is equipped with a conical narrowing device, a vertical pipe, a steel tap, a stop for the valve, an adapter for sampling water and connecting a pressure gauge, while as a crane, a ball valve attached to the outlet is used, and an adapter for connecting a pressure gauge and water sampling is connected to a ball valve, the stopper is bolted to the roofs ke latches.

Description

The utility model relates to equipment installed on observation wells of fresh groundwater deposits for measuring water temperature, piezometric levels, flow rate, as well as for sampling water for chemical analysis.

Known sealed head for production wells of drinking groundwater deposits [1, p. 484, Fig. XVI-49], including: a bend made of pipes 1; one valve 2; plunger 3; drainage 4. The design of the head is shown in figure 1.

This heading has the following disadvantages:

- the high cost of shut-off valves;

- inconvenience of operation when sampling water;

- it is impossible to ensure trouble-free operation of the head in unguarded territories;

- impossible to measure piezometric levels.

Closest to the proposed device is a head for self-flowing non-sanding wells operating under pressure up to 0.5 MPa [2, p.12], comprising: a bend made of pipes 1; two valves 2; rotary sampling valve 3; plug 4; three-way valve with pressure gauge 5; drainage 6. The design of the head is shown in figure 2.

This heading has the following disadvantages:

- when operating the head in unprotected areas, expensive protection is required (pavilion, protective alarm), ensuring trouble-free operation of the head;

- high cost of gate valves.

The technical result of the proposed head is to reduce the cost of the head, simplifying the design, increasing the reliability of operation.

The technical result is achieved by the fact that the head of the observation self-flowing well for fresh groundwater deposits, comprising: a valve; tap for sampling water, equipped with a conical constricting device; vertical pipe; steel tap; stopper for a latch; an adapter for sampling water and connecting a manometer, while using a ball valve attached to the tap as a tap, and an adapter for connecting a manometer and sampling water is connected to a ball valve, the stopper is bolted to the valve cover. The design of the proposed head is shown in figures 3 and 4. It contains: a valve 1;

conical narrowing device 2; vertical pipe 3; steel branch 4; ball valve 5; adapter for sampling water and connecting a pressure gauge 6; stopper 7; flywheel 8.

The operation of the head is as follows:

- fully open the ball valve 5 and for a predetermined time, discharge water from the well until it is completely clarified, then close the ball valve 5;

- screw the adapter 6, open the tap 5, take the required number of water samples and close the tap 5;

- screw the digital pressure gauge onto the adapter, tap 5 again fully open and measure the piezometric pressure;

- after sampling and measuring the piezometric pressure, the valve 5 is closed, the adapter is dismantled, I remove the rotary mechanism from the valve 5;

- the valve 1 installed on the wellhead is constantly open and fixed by the stopper 7, to prevent unauthorized rotation of the flywheel 8.

The use of the proposed head provides, in comparison with currently used heads, the following advantages:

- reduction in the cost of the head;

- simplification of the design of the head;

- the ability to clean the filters and the wellbore before sampling water through a drainage system, the diameter of which is equal to the diameter of the filter string of the well;

- improving the reliability of operation of the tip.

The proposed device is advisable to use for observing self-flowing wells of fresh underground water deposits located in unprotected areas.

Information sources:

1. Handbook of drilling and equipment for water wells / Under the general. ed. V.V.Dubrovsky / Second ed., Rev. and add. - M .: Publishing house "Nedra". - 1972. - S. 484. - Fig. XVI-49.

2. Units of engineering equipment of structures - 7.901-7. -Sealed wellheads. - Issue 3. - Heads of self-flowing wells. - Approved and put into effect by the USSR Ministry of Water Construction. - Minutes No. 821 of 04/02/90; - S.12.

Claims (1)

The head of the observation self-flowing well for fresh underground water deposits, containing a valve, a tap for sampling water, characterized in that the tip is equipped with a conical narrowing device, a vertical pipe, a steel tap, a stopper for the valve, an adapter for sampling water and connecting a pressure gauge, while as a crane, a ball valve attached to the outlet is used, and an adapter for connecting a pressure gauge and water sampling is connected to a ball valve, the stopper is bolted to the roofs ke latches.

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