RU2652969C2 - Device for water supply from the well to tower and its automatic drain valve - Google Patents

Abstract

FIELD: water supply.

SUBSTANCE: invention relates to the field of water supply and can be used for the liquid drainage in pipelines, preferably in the villagers water wells with the Rozhnovsky tower pipelines piping. Automatic drain valve contains body with inlet and outlet openings, inside which there are lever with locking element, weight, divider, bolt and nut with the possibility of the weight and divider resting against the seat opposite side, forming the body inner surface, the lever one end is pivotally connected to the yoke, and the other is bent, drain, which is made in the form of discharge tube with seat placed on the body side surface, yoke, wherein the seat and the contacting with it closure element surface are made flat, drain tube with seat, lever and yoke are made of plastic. Yoke is provided with the shaft with the possibility of the lever with the yoke jaws pressing force adjustment, yoke with body contact belt is made, the chamfer is made on the yoke with the body contact edge, the yoke non-threaded part is made conical. Fig. 1 shows the water from well to the tower supplying device. Water from well to the tower supplying device comprises electrical submersible pump 1 with check valve 2, pressure pipeline 3, automatic drain valve 4 from the bottom directly connected to the pressure pipeline 3, and from the top is to the water lifting and draining pipes 5 and gate 5A, which supply water from above to the tower 6. Automatic drain valve is the above-described valve.

EFFECT: enabling the device reliability and efficiency improvement by the use of automatic drain valve according to claim 1; thus, eliminating the wells, electric submersible pumps premature failure due to their operation rules violation; freezing of water in the water-lifting and draining pipes and the tower, even with the emergency power outage; pumping stations and wellheads construction in wells, the wells connection directly to the water consumers, probability of the wells infestation; land pumping stations heating and improving the wells operation in automatic mode, supplying water to the villagers, many-fold costs reduction compared to the existing projects in the regions of Russia.

2 cl, 3 dwg

Description

The invention relates to the field of water supply and can be used to drain liquids in pipelines, preferably in pipelines, piping water wells of villagers with the Rozhnovsky tower.

Known devices for supplying water from wells to towers (typical designs) from a lower water supply to a tower, including ground-based pumping stations or underground pumping stations (1).

The main disadvantage of the device for supplying water from the well to the tower from below is the freezing of water in the pressure pipe and in the tower. Because of this, wells do not work reliably in automatic mode.

Therefore, manufacturers of pumps write, "When the temperature drops below 0 ° C, take measures to prevent freezing of water in the pressure pipe when the unit is idle." To prevent freezing of water in the pressure pipe, some are heated by pump station electric heaters, but this does not save the villagers. Therefore, mainly water is supplied to the tower from above by removing the check valve of the submersible pump. The towers are not insulated, but despite this they work reliably due to the passage of water from the top to the bottom of the tower. But at the same time they violate the rules of operation of the well and pumps in connection with the removal of the check valve of the electric submersible pump, which shortens their life.

The disadvantage of model project No. 901-2-177.91 is: the construction, repair and operation of underground pumping stations, underground water pipes, wells around wells; the presence of a wellhead in a well, which makes it difficult to dismantle pipes filled with water. All water in the pressure pipes, when dismantling the pipes, is sprayed into the well, to the installers, and this garbage seeps into the well. When flushing wells, the wells are generally filled with mud. If we take into account the direct connection of wells with water consumers, the existence of a supply and outlet pipe in the tower, the probability of infection of the well increases hundreds of times.

Recently, the connection of wells directly with water consumers has spread, bypassing the Rozhnovsky tower, which is the reason for the lack of a reserve volume of water and a violation of fire safety rules.

It is known "Device for supplying water from water wells and its drain valve" (Application (21) 4702131/29, (22) 31.03.89, (76) Vafin M.V.), comprising an electric submersible pump with a check valve, a pressure pipe, automatic drain valve, water pipes of the pressure pipeline, gate valve, tower.

Subsequently, patent No. 2000392 C (2) E03B 3/06 was obtained according to the second claim under the name “Automatic drain valve”.

The disadvantage of a device for supplying water from water wells is its low reliability, since when the pump stops, the water in the pressure pipe can freeze due to the unreliability of its automatic drain valve because sometimes the valve does not open, sometimes water leaks at the junction of the body and plug , saddles (drain), lever, fork when working in aggressive water quickly fail.

It is known “Device for supplying water from a well to a tower and its automatic drain valve” (3) (Patent No. 2222671, (21) Application No. 2001132996/03, (72) Author Vafin Minkhasyan Valievich) containing an electric submersible pump with a non-return valve, a pressure head pipeline, automatic drain valve, water pipes of the pressure pipeline, gate valve, tower.

The disadvantage of this device is the leakage of water through an automatic drain valve between the locking element and the seat of the drain pipe of the valve when the electric submersible pump is running.

The closest analogue of the invention is “A device for supplying water from a well and its automatic drain valve” (Patent No. 2320826 (4), (72) Author Vafin Minkhasyan Valievich, (21). Application No. 2005119229) containing an electric submersible pump with a non-return valve, pressure pipe, automatic drain valve, water pipes of the pressure pipe, gate valve, tower. At the same time, water was supplied to the tower from above, and water flow was from the bottom of the tower.

The disadvantage of this device is the leakage of water between the body and plug of the automatic drain valve when water is supplied to the tower.

The main reason for water to leak between the body and the plug of the automatic drain valve is the inability to sometimes ensure the tightness of the fastening of the plug to the body and the regulation of the force of pressing the sponges of the fork of the lever with the nut of the fork to the body. Because with weak tightening of the nut water seeps between the body and the plug, with strong tightening the nut strongly presses the lever with the jaws of the fork, which reduces the response of the lever to changes in the forces acting on the lever and prevents the lever with the locking element from opening and closing the drain pipe with the saddle normally , i.e. the operational reliability and efficiency of the device is not high enough.

The objective is to increase the reliability and efficiency of the device.

In FIG. 1 shows a device for supplying water from a well to a tower, a general view;

In FIG. 2 - automatic drain valve.

The device comprises an electric submersible pump 1 with a check valve 2, a pressure pipe 3, an automatic drain valve 4, a water-drain pipe 5, a valve 5A, a tower 6.

Moreover, the aboveground part of the water-discharge pipes has a slope. In the static state, the automatic drain valve 4 is open, in the pipes located above the drain valve the water is drained, therefore, the pressure pipe does not exist in the device above the drain valve, water-drain pipes exist 5. In a static state below the drain valve, the pipeline is always filled with water, is under pressure Therefore, this pipeline was pressure head and remained pressure pipe after installation of an automatic drain valve in the well. Therefore, the automatic drain valve 4 is always directly butt end-to-end connected to the pressure pipe 3, and above to the water-drain pipes 5 connected to the tower with the upper water supply. The automatic drain valve contains a housing 7, a drive lever 10 with a locking element 8, a weight 12, a divider 14, a drain pipe with a seat 9, a plug 11, a nut 13, 16, a bolt 17, an axis 15. In this case, the seat and the contact surface of the locking elements are made “flat”, a drain pipe with a saddle, a lever and a fork are made of plastic. The drive lever 10 with the locking element 8, a weight 12 and a divider 14 is placed inside the housing, one end of the drive lever is pivotally connected to the fork through the axis 15, and the other is bent. Details of the lever weight 12 and the divider 14 are mounted with the possibility of support on located on the opposite side of the saddle forming the inner surface of the housing 7.

The device operates as follows. When you turn on the electric submersible pump 1, the water through the non-return valve 2 rises upward through the pressure pipe 3, an automatic drain valve 4 passes, the first water drain and drain pipe 5, the valve 5A, the above-ground part of the water drain and drain pipes 5 are drained from above into the tower, pass through the tower and from below the water goes to flow. Therefore, the tower does not freeze. When water moves up the casing under the action of high-speed water pressure, the drive lever 10 with the locking element 8, a small weight 12 and a divider 14 is rotated relative to the axis 15 of the plug and the locking element 8 closes the saddle of the drain pipe 9.

In this case, the elimination of water leakage between the body and plug of the automatic drain valve is carried out:

The supply of the fork with the axis 15 (Fig. 3) with the possibility of adjusting the pressing force of the lever with the jaws of the fork before installing them in the housing, eliminating the need for this regulation with the nut 13 for attaching the fork to the housing, created the conditions for pressing the fork against the housing with a nut 13 s the force necessary to ensure tightness.

Wherein:

1) to exclude when tightening the nut 13 misalignment of pressing the lever with the jaws of the fork:

- A belt of contact between the plug and the body has been made;

- the chamfer is removed from the plug from the edge of contact with the body;

2) to improve the density between the body and the plug, the non-threaded part of the plug is made with a cone.

This provides increased reliability and efficiency of the device.

When stopping the submersible pump 1, i.e. when the movement of water stops in pipelines 3, 5 and, therefore, inside the housing 7, the drive lever 10 with the locking element 8, a weight 12 and a divider 14 is rotated relative to the axis 15 of the plug, opening the saddle of the drain pipe 9.

Thus, the closing and opening of the saddle and, consequently, the discharge of water back into the well from the water-lifting pipes when the electric submersible pump stops, is automatically carried out, which prevents freezing of water in the water-lifting pipes when the electric submersible pump does not work in any weather conditions.

At the same time, the rules for operating wells and electric submersible pumps are not violated. the check valve of the electric submersible pump is in place, the pressure pipe is located below the automatic drain valve, therefore it is always filled with water. This column of water in several atmospheres always presses through the check valve on the pump. Therefore, the intake of water from the well at the time of starting the pump is reduced, the mode of taking water from the well is not violated, the natural filter of the well is preserved at the time of starting the pump, therefore:

- at times, the flow of sand and water into the well and into the pump decreases;

- precludes premature filling of the well sump with sand;

- bearings, impellers of the pump work longer;

- the response of the electrical protection is not violated, the electric motor lasts longer;

- the non-return valve protects the electric submersible pump, water pipes, the natural filter of the return shock and excludes the reverse rotation of the rotor when the pump stops, and thereby eliminates the worst case of starting the electric submersible pump;

- precludes premature failure of wells and pumps.

Thus, the reliability and efficiency of the device are improved, the well, the electric submersible pump are protected from violation of the rules of their operation for premature failure, the water-lifting and drain pipes and the tower are prevented from freezing water in them even during an emergency power outage, the conditions for the well to work in automatic mode are improved under any weather conditions, energy was saved for heating ground-based pumping stations, the need to build pumping stations, wellheads in wells and Connections wells directly from the consumers of water, hundreds of times reduced the probability of infection of wells, improved water supply the villagers, cut spending in times compared with the current standard designs.

Information sources

1. Typical design - underground pumping station No. 901-2-177.91.

2. Patent No. 2000392 C, (51) EV03 3/06, (21) 4702131/29, (22) 03/31/89, (76) Vafin M.V., (54) Automatic drain valve.

3. Patent No. 2222671 C2, (21) Application No. 2001132996/03, (54) A device for supplying water from a well to a tower and its automatic drain valve. (72) author Vafin Minkhasyan Valievich.

4. Patent No. 2320826 C2, (21) Application No. 2005119229/03, (54) A device for supplying water from a well and its automatic drain valve, (72) author Vafin Minkhasyan Valievich.

Claims (2)

1. Automatic drain valve containing a housing with inlet and outlet openings, inside of which there is a lever with a locking element, a weight, a divider, a bolt and a nut, with the possibility of supporting the weight and the divider to form on the opposite side of the saddle the inner surface of the body, one end the lever is pivotally connected to the fork, and the other is bent, a drain made in the form of a drain tube with a saddle located on the side surface of the housing, a fork, the saddle and the surface of the locking element in contact with it nta are made flat, a drain pipe with a saddle, the lever and the plug are made of plastic, characterized in that the fork is equipped with an axis with the ability to control the pressing force of the lever with the lips of the fork, the contact belt of the fork with the housing is made, the bevel is removed from the fork, from the edge of contact with the housing , the threaded part of the plug is made by a cone. 2. A device for supplying water from a well to a tower, comprising an electric submersible pump with a non-return valve, a pressure pipe, an automatic drain valve directly connected from below to a pressure pipe, and above to water-drain pipes connected to the upper water supply to the tower, a valve, characterized in that the automatic drain valve is a valve according to claim 1.

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